KR102406576B1 - Safety apparatus of massage chair system and massage chair system - Google Patents

Abstract

The present invention relates to a safety device for a massage chair and a massage chair system that can prevent various safety accidents that may occur when using the massage chair in advance. , a sensor unit installed in the massage chair unit capable of massaging any one or more of hands, legs, feet, and combinations thereof, and capable of detecting an abnormal state of the massage chair unit; and a control unit capable of receiving an abnormal state signal from the sensor unit and applying a safety measure control signal to the massage chair unit.

Description

Safety apparatus of massage chair and massage chair system {Safety apparatus of massage chair system and massage chair system}

The present invention relates to a safety device and a massage chair system for a massage chair, and more particularly, to a safety device and a massage chair system for a massage chair that can prevent various safety accidents that may occur when using a massage chair in advance will be.

In general, massage is an act of stimulating the body using a person's hand or a massager, and normalizing the function of the body, reducing fatigue, or improving health through the stimulation of the body.

In recent years, a mechanical massage device has been developed to implement such a massage, and among them, a massage chair that allows a user to sit comfortably and perform a full body massage is widely used.

These massage chairs have very complex mechanical characteristics, such as having to give stimulation to the whole body according to the user's preferences, intentions, physique, etc. is installed

In recent massage chairs, in addition to the massage function capable of tapping or rubbing the user's body, the head massager and the back massager of the massage chair are laid down so that the user can experience a state of weightlessness, while the leg massager and the foot massager are raised at the same time. Or, the distance between the leg massage part and the foot massage part increases and then narrows again according to the length of the user's leg.

However, these conventional massage chairs, while the user is not in use, when the operation button or switch is accidentally connected by a foreign object such as children, pets or careless and operates abnormally, such as a fall accident or a pinch accident Various safety accidents may occur, and even while the user is performing the massage function normally, it is difficult to look around while the user is receiving the massage. There were many problems, such as frequent occurrence of various types of safety accidents, such as colliding with a moving massage chair or getting caught in a gap between parts.

Laid-Open Patent Publication No. 10-2016-0049622 (2016.05.10.) Japanese Patent Laid-Open No. 2020-010781 (2020.01.23.)

The present invention is to solve various problems including the above problems, and by using a seating sensor to primarily perform a massage function only in the user's normal sitting state, children, pets, careless people, etc. By preventing abnormal operation by an object, various safety accidents can be prevented in advance, and foreign objects are secondarily used by the approach detection sensor, floor jamming sensor, or pressure sensor while the user is performing the normal massage function. An object of the present invention is to provide a massage chair safety device and massage chair system that can prevent various types of safety accidents or abnormal movements that may occur by approaching the vicinity of the massage chair. However, these problems are exemplary, and the scope of the present invention is not limited thereto.

The safety device of a massage chair according to the spirit of the present invention for solving the above problems is at least any one or more of the user's head, neck, back, shoulder, waist, hip, arm, hand, leg, foot, and combinations thereof a sensor unit installed in the massage chair unit capable of massaging the , and capable of detecting an abnormal state of the massage chair unit; and a control unit capable of receiving an abnormal state signal from the sensor unit and applying a safety measure control signal to the massage chair unit.

In addition, according to the present invention, the sensor unit may include: a first seating detection sensor installed under the cushion part of the massage chair part and installed to be biased toward one corner of the cushion part; and a second seating detection sensor installed under the cushion part of the massage chair part and installed to be biased toward the other corner, which is a diagonal direction of the one corner of the cushion part.

In addition, according to the present invention, when a seating detection signal is detected by at least one of the first seating detection sensor and the second seating detection sensor, the control unit applies a power application control signal or a massage driving control signal to the massage chair unit a seated detection control unit; and an unused detection control unit that applies a power interruption control signal or a massage stop control signal to the massage chair unit when a seating detection signal is not detected by at least one of the first seating detection sensor and the second seating detection sensor. have.

In addition, according to the present invention, the sensor unit, from the front surface of the leg frame of the leg massage unit to the lower surface so as to sense the approach of a foreign object during massage or caught between the leg massage unit and the foot massage unit of the massage chair unit. and an approach detection sensor having a first sensing area up to or having a second sensing area extending from the front surface to the upper surface of the foot frame of the foot massager.

In addition, according to the present invention, the control unit, when the approach detection signal is detected by the approach detection sensor, an approach detection control unit for applying a massage stop control signal or an interval widening control signal to the massage chair unit; may include.

In addition, according to the present invention, the sensor unit is installed at one edge of the back plate so as to detect the trapping or approach of a foreign object between the back plate and the floor surface where the leg massage part and the foot massage part are installed in the massage chair part. floor jamming sensor; And a second floor jamming detection sensor installed at the other edge of the back plate to detect the pinching or approach of a foreign object between the rear plate and the bottom surface where the leg massage part and the foot massage part are installed in the massage chair part; may include

In addition, according to the present invention, the control unit, when an approach detection signal is detected in any one or more of the first floor jamming detection sensor and the second floor jamming detection sensor, a descending stop control signal or a reverse operation control signal to the massage chair It may include a; floor jamming detection control unit applied to the unit.

In addition, according to the present invention, the sensor unit is installed in at least the inside of the case, the capacitive antenna sensor, pressure sensor, contact switch sensor, facial recognition or massage chair capable of detecting a change in the surrounding electromagnetic field outside the case This may be accomplished by selecting any one of an image camera sensor capable of photographing the direction of motion, a microphone sensor capable of detecting voice recognition or screaming, a fingerprint recognition sensor for user recognition, and combinations thereof.

In addition, according to the present invention, the sensor unit, the left pressure sensor for measuring the pressure of the air applied to the left airbag of the leg massage unit or the foot massage unit of the massage chair unit; and a right pressure sensor configured to measure the pressure of air applied to the right airbag of the leg massage unit or the foot massage unit of the massage chair unit.

In addition, according to the present invention, the control unit, when the difference between the left pressure signal applied from the left pressure sensor and the right pressure signal applied from the right pressure sensor is more than a permissible value, an air pressure stop control signal or an air pressure reduction control signal may include; an air pressure sensing control unit for applying to the massage chair unit.

In addition, according to the present invention, the sensor unit, a rear jamming detection sensor installed on the back plate or the electric part cover so as to detect the jamming or approach between the back plate part and the electric part cover of the massage chair part; can

In addition, according to the present invention, the control unit, when the approach detection signal is detected by the rear jamming detection sensor, a rear jamming detection control unit for applying a massage stop control signal or a gap separation control signal to the massage chair unit; may include.

On the other hand, the massage chair system according to the spirit of the present invention for solving the above problems may include the above-described safety device of the massage chair.

According to various embodiments of the present invention made as described above, by using the seating detection sensor to primarily perform the massage function only in the user's normal sitting state, the It is possible to prevent various safety accidents in advance by preventing abnormal operation by It has the effect of preventing in advance various types of safety accidents or abnormal movements that may occur by approaching the chair. Of course, the scope of the present invention is not limited by these effects.

1 is a perspective view illustrating a safety device for a massage chair and a massage chair system according to some embodiments of the present invention.
FIG. 2 is a block diagram illustrating a control unit of the safety device of the massage chair of FIG. 1 .
3 is an exploded perspective view of parts showing a first seating detection sensor and a second seating detection sensor of the safety device of the massage chair of FIG. 1 .
4 is a perspective view showing a leg length extension state of the safety device of the massage chair of FIG. 1 .
5 is a perspective view illustrating a state in which the leg length of the safety device of the massage chair of FIG. 1 is contracted.
6 is a front view illustrating a left pressure sensor and a right pressure sensor of the safety device of the massage chair of FIG. 1 .
7 is an exploded perspective view showing the first floor jamming sensor and the second floor jamming sensor of the safety device of the massage chair of FIG. 1 .
8 is an enlarged perspective view showing an enlarged second floor jamming detection sensor of FIG.
9 is a perspective view showing a use state of the safety device of the massage chair of FIG. 1 returned to the standby mode in the zero-gravity mode.
10 is a side view showing the safety device of the massage chair and the dangerous state of the massage chair system of FIG. 1 .

Hereinafter, several preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Examples of the present invention are provided to more completely explain the present invention to those of ordinary skill in the art, and the following examples may be modified in various other forms, and the scope of the present invention is as follows It is not limited to an Example. Rather, these embodiments are provided so as to more fully and complete the present disclosure, and to fully convey the spirit of the present invention to those skilled in the art. In addition, in the drawings, the thickness or size of each layer is exaggerated for convenience and clarity of description.

The terminology used herein is used to describe specific embodiments, not to limit the present invention. As used herein, the singular form may include the plural form unless the context clearly dictates otherwise. Also, as used herein, “comprise” and/or “comprising” refers to specifying the presence of the recited shapes, numbers, steps, actions, members, elements, and/or groups thereof. and does not exclude the presence or addition of one or more other shapes, numbers, movements, members, elements and/or groups.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings schematically illustrating ideal embodiments of the present invention. In the drawings, variations of the illustrated shape can be envisaged, for example depending on manufacturing technology and/or tolerances. Accordingly, embodiments of the spirit of the present invention should not be construed as limited to the specific shape of the region shown in the present specification, but should include, for example, changes in shape caused by manufacturing.

Hereinafter, a safety device for a massage chair and a massage chair system according to some embodiments of the present invention will be described in detail with reference to the drawings.

1 is a perspective view illustrating a massage chair safety device 100 and a massage chair system 1000 according to some embodiments of the present invention, and FIG. 2 is a control unit 30 of the massage chair safety device 100 of FIG. 1 . ) is a block diagram showing

First, as shown in FIGS. 1 and 2 , the safety device 100 for a massage chair according to some embodiments of the present invention may largely include a sensor unit 20 and a control unit 30 .

For example, as shown in Figure 1, the sensor unit 20, at least the user's head, neck, back, shoulder, waist, buttocks, arms, hands, legs, feet, and any one or more of combinations thereof It is installed in the massage chair unit 10 capable of performing a massage, and may be various sensors or sensing devices capable of detecting an abnormal state of the massage chair unit 10 .

Here, for example, the massage chair unit 10 includes a leg massage unit 11 and a foot massage unit 12 that can be closer to or farther away from each other so that the leg length can be adjusted, as well as other heads. Massage chairs of various types such as massage part, neck massage part, back massage part, shoulder massage part, waist massage part, hip massage part, arm massage part, hand massage part etc. can be applied. That is, the massage chair unit 10 is not necessarily limited to the drawings and may be configured in a wide variety of designs and shapes.

More specifically, for example, the sensor unit 20 may be applied to various types of sensors or sensing devices, such as capacitive type, static pressure type, magnet type, electromagnetic wave type, and optical sensor type, as well as various contact type switches. can

In addition, for example, the control unit 30 receives an abnormal state signal from the sensor unit 20 and applies a safety measure control signal to the massage chair unit 10 , a kind of circuit, software, program, or , a microprocessor, a central processing unit, an arithmetic unit, a control board, a control panel, a computer, various electronic components, or a smart device.

Also, here, the leg massage part 11, the foot massage part 12, the head massage part, the neck massage part, the back massage part, the shoulder massage part, the waist massage part, the hip massage part, The arm massage unit, the hand massage unit, etc. are provided with various driving devices that can drive various parts by receiving various control signals from the control unit 30, that is, a driving motor, an air bag, an air cylinder, a massage ball, etc. It includes various units capable of performing actions such as tapping, kneading, or rubbing the user's hips, feet, back (shoulder), waist, hands, head, neck, etc., as well as a zero-gravity mode or body size measurement mode. can

More specifically, for example, the driving devices may be configured using various linear motion devices. For example, a ball screw generating a linear motion force by rotational motion, a servo motor rotating the ball screw, and a massage unit It may be composed of a guide rail for guiding movement. Alternatively, various known linear motion devices such as a linear motion device including a linear motor and a guide rail, or a linear motion device including a plurality of pulleys, a power transmission belt, and a motor may be applied as a driving device.

In addition, the driving devices are installed at the end of the movable bar and spray compressed air to a plurality of acupressure rollers or a solenoid valve that vibrates a massage ball back and forth or airbags that pressurize the body or supply air to an air bag to pressurize the body. All pneumatic massage units and the like can be applied.

3 is an exploded perspective view of parts showing the first seating detection sensor 21-1 and the second seating detection sensor 21-2 of the safety device 100 of the massage chair of FIG. 1 .

1 to 3 , the sensor unit 20 is installed below the cushion unit 1 of the massage chair unit 10 and is installed to be biased toward one corner of the first seating The detection sensor 21-1 and the massage chair part 10 are installed below the cushion part 1, and are installed to be biased toward the other corner, which is a diagonal direction of the one corner of the cushion part 1 A second seating detection sensor 21 - 2 may be included.

Here, as shown in FIG. 3 , the first seating detection sensor 21-1 and the second seating detection sensor 21-2 are connected to each other so that only two sensors can detect a wide range of seating pressure. It can be installed diagonally.

For example, even if the user's center of gravity is tilted forward or backward, any one or more of the first seating detection sensor 21-1 or the second seating detection sensor 21-2 can be detected to provide various It is possible to more precisely and accurately detect a user of any size or various postures or seating conditions.

In addition, for example, as shown in FIGS. 1 to 3 , the control unit 30 is configured to correspond to the first seating detection sensor 21-1 and the second seating detection sensor 21-2. When a seating detection signal is detected by at least one of the first seating detection sensor 21-1 and the second seating detection sensor 21-2, a power application control signal or a massage driving control signal is transmitted to the massage chair unit 10 When a seating detection signal is not detected in any one or more of the seating detection control unit 31 and the first seating detection sensor 21-1 and the second seating detection sensor 21-2 of FIG. It may include an unused detection control unit 32 of FIG. 2 for applying a control signal or a massage stop control signal to the massage chair unit 10 .

Accordingly, when the operating state of the safety device 100 of a massage chair according to some embodiments of the present invention is described as an example, when the user normally sits, the first seating detection sensor 21-1 and the When a seating detection signal is detected by at least one of the second seating detection sensors 21 - 2 , the control unit 30 may determine this as a normal state to normally apply power to the massage chair or drive the massage.

Here, when a seating detection signal is detected from any one of the first seating detection sensor 21-1 and the second seating detection sensor 21-2 through an internal program, the control unit 30 returns it to a normal state. Seated in various combinations, such as to determine whether a sitting detection signal is simultaneously detected by both the first seating detection sensor 21-1 and the second seating detection sensor 21-2, and to determine a normal state. The detection sensitivity can be adjusted.

If a sitting detection signal is not detected in any one or more of the first seating detection sensor 21-1 and the second seating detection sensor 21-2, it is determined as an abnormal state, and even if the power switch or Even if the massage operation switch is connected or during massage, the power of the massage chair can be intercepted or the massage function can be stopped.

Therefore, by using the first seating detection sensor 21-1 and the second seating detection sensor 21-2 to primarily perform the massage function only in the user's normal sitting state, children or pets It is possible to prevent various safety accidents in advance by preventing abnormal operation by foreign objects such as careless people.

4 is a perspective view showing a leg length extension state of the safety device 100 of the massage chair of FIG. 1 , and FIG. 5 is a perspective view showing a leg length contraction state of the safety device 100 of the massage chair of FIG. 1 .

For example, in general, as shown in FIGS. 4 and 5, the massage chair has a narrow distance between the leg length extension state and the leg length contraction state in order to match the user's leg length, or with the leg massage part 11 The position of the foot massage units 12 may be adjusted to each other, and in the process, an approaching phenomenon or pinching of a foreign object or an unnecessary body part may occur.

In order to prevent this, as shown in FIGS. 1 to 5 , the sensor unit 20 of the safety device 100 for a massage chair according to some embodiments of the present invention includes a leg of the massage chair unit 10 . The massage unit 11 and the foot massage unit 12 may include an approach detection sensor to detect the approach of a foreign object during massage or pinching between the foot massage unit 12 .

Here, the approach detection sensor is a first approach detection sensor 22-1 having a first detection area from the front surface to the lower surface of the leg frame F1 of the leg massage unit 11, or The foot frame (F2) of the foot massage unit 12 so as to detect a pinch between the leg massage unit 11 and the foot massage unit 12 of the massage chair unit 10 or the approach of a foreign object during massage It may be any one of the second approach detection sensors 22-2 having a second detection area from the front surface to the upper surface of the .

That is, the approach detection sensor, it is possible that only one of the first approach detection sensor 22-1 or the second approach detection sensor 22-2 is installed.

In addition, for example, as shown in FIGS. 1 to 5 , the control unit 30 may correspond to the first approach detection sensor 22-1 or the second approach detection sensor 22-2, When an approach detection signal is detected by at least one of the first approach detection sensor 22-1 and the second approach detection sensor 22-2, a massage stop control signal or an interval widening control signal is transmitted to the massage chair unit 10 ) may further include an approach detection control unit 33 for applying.

Therefore, if the operating state of the safety device 100 of the massage chair according to some embodiments of the present invention is described as an example, when the user normally sits, the first seating detection sensor 21-1 And, even if a seating detection signal is detected by at least one of the second seating detection sensors 21-2 and determined as a normal seating state, if the first approach detection sensor 22-1 and the second When an approach detection signal is detected from any one or more of the approach detection sensors 22-2, it is determined that a foreign object has approached the vicinity of the massage chair and the massage is automatically and urgently stopped or the leg massage unit 11 and the foot massage In order to prevent a jamming accident between the part 12, the gap between the two can be opened urgently automatically.

Therefore, it is possible to prevent in advance various types of safety accidents or abnormal motions that may occur when a foreign object approaches the vicinity of the massage chair while the user is performing a normal massage function secondarily by using such an approach detection sensor.

6 is a front view showing the left pressure sensor 24-1 and the right pressure sensor 24-2 of the safety device 100 of the massage chair of FIG.

1 to 6 , the sensor unit 20 of the safety device 100 of the massage chair according to some embodiments of the present invention includes the leg massage unit 11 of the massage chair unit 10 . Alternatively, the left pressure sensor 24-1 for measuring the pressure of air applied to the left airbag 14 of the foot massager 12 and the leg massager 11 or the foot massager ( 12) may include a right pressure sensor 24-2 for measuring the pressure of air applied to the right airbag 15.

In order to correspond to this, the control unit 30, when the difference between the left pressure signal applied from the left pressure sensor 24-1 and the right pressure signal applied from the right pressure sensor 24-2 is greater than an allowable value, It may further include an air pressure sensing control unit 35 for applying an air pressure stop control signal or an air pressure reduction control signal to the massage chair unit 10 .

Therefore, for example, while the user is using, one leg or foot falls out, or children or pets who enter the inside of the one leg massage unit 11 or the one foot massage unit 12 erroneously turn on the power switch or massage drive switch. If the air pressure is applied excessively to only one side due to an erroneous operation, it can be detected as an abnormal operation and the air pressure can be stopped or attenuated. Of course, in the case of a disabled person who lacks one foot or one leg, it is possible to disassemble such a safety function from the beginning and use it.

Therefore, by using this pressure sensor, it is possible to prevent in advance that one leg is missing while the user is performing a normal massage function or that children or pets are caught in one side due to a malfunction of the switch and the air pressure is applied excessively. can

7 is an exploded perspective view of parts showing the first floor jamming detection sensor 23-1 and the second floor jamming detection sensor 23-2 of the safety device 100 of the massage chair of FIG. It is an enlarged perspective view showing an enlarged second floor jamming sensor 23-2, and FIG. 9 is a perspective view showing the use state of the massage chair safety device 100 of FIG.

1 to 9 , the sensor unit 20 of the safety device 100 for a massage chair according to some embodiments of the present invention includes the leg massage unit 11 of the massage chair unit 10 . ) and the first floor jamming detection sensor installed at one corner of the back plate 13 so as to detect the trapping or approach of a foreign object between the rear plate 13 and the bottom surface B, where the foot massage part 12 is installed. (23-1) and the leg massage part 11 and the foot massage part 12 of the massage chair part 10 are installed between the back plate 13 and the bottom surface (B) of a foreign object caught or It may further include a second floor jamming detection sensor 23-2 installed on the other edge of the back plate 13 to detect the approach.

In addition, for example, the control unit 30 so as to correspond to the first floor jamming detection sensor 23-1 and the second floor jamming detection sensor 23-2, the first floor jamming detection sensor 23-1 ) and the second floor jamming detection sensor 23-2, when an approach detection signal is detected from any one or more of the floor jamming detection control unit that applies a descent stop control signal or a reverse operation control signal to the massage chair unit 10 ( 34) may be further included.

Here, as shown in FIG. 8 , the sensor unit 20 is installed inside the case to sense the proximity of the foreign object as well as contact with the foreign object, and the peripheral electromagnetic field outside the case It may be a capacitive antenna sensor capable of detecting a change.

Therefore, if the operating state of the safety device 100 of the massage chair according to some embodiments of the present invention is described as an example, as shown in FIG. 9 , the massage chair of the present invention returns from the zero gravity mode to the standby mode When a foreign object such as children or pets is caught between the rear plate 13 and the floor surface B on which the massage chair is installed, it detects this and automatically stops or reverses the descending of the rear plate 13 , that is, the thick plate 13 can be automatically raised.

Therefore, it is possible to prevent in advance various types of safety accidents or abnormal operations that may occur when a foreign object approaches the vicinity of the massage chair while the user is performing a normal massage function secondarily using the jamming sensor.

Meanwhile, the present invention may include the massage chair system 1000 including the safety device 100 as well as the safety device 100 of the massage chair of the present invention described above.

Therefore, according to the massage chair system 1000 according to some embodiments of the present invention, by using the seating sensor to primarily perform the massage function only in the user's normal sitting state, children, pets, or careless people It is possible to prevent various safety accidents in advance by preventing abnormal operation by foreign objects such as, It is possible to prevent various types of safety accidents or abnormal movements that may occur when a foreign object approaches the area around the massage chair on the way.

FIG. 10 is a side view illustrating a dangerous state of the safety device 100 and the massage chair system 1000 of the massage chair of FIG. 1 .

As shown in FIGS. 1 to 10 , the sensor unit 20 includes the back panel 16 to sense the pinching or approach between the back panel 16 and the electric cover 17 of the massage chair unit. ) or may further include a rear jamming detection sensor 25 installed on the electric part cover (17).

Here, the rear jamming sensor 25 of FIG. 10 is installed on the electric part cover 17, and is installed inside the case as well as the contact-type switch sensor, so as to change the surrounding electromagnetic field outside the case. Various sensors such as a capacitive antenna sensor and a pressure sensor that can detect It can be made of available materials.

In addition, as shown in FIG. 2 , the control unit 30 transmits a massage stop control signal or an interval spread control signal to the massage chair unit ( 10) may further include a rear jamming detection control unit 36 to apply.

Therefore, as shown in FIG. 10, when a foreign object such as children or pets approaches or gets caught in the rear that the user cannot recognize, it is possible to prevent a safety accident in the rear by detecting this and stopping the massage or widening the interval. have.

Here, for example, the rear pinching detection sensor 25 such as the contact-type switch sensor can adjust the touch sensitivity or sensitivity to, for example, prevent unnecessary operation by operating only under a load of 10 Kg to 20 kg or more. It can also be applied to children or pets.

In addition, as shown in Figures 1 to 10, the sensor unit 20, the above-described capacitive antenna sensor, pressure sensor, contact switch sensor, as well as the face recognition of the user of Figure 10 An image camera sensor (C1), an image camera sensor (C2) capable of photographing a rearward motion direction of the massage chair unit 10, a forward motion direction of the massage chair unit 10 or movement of the leg massage unit 11 An image camera sensor (C3) capable of photographing a direction, etc., an image camera sensor (C4) installed on a wall or ceiling to photograph the front of the massage chair unit (10), and an image camera sensor (C4) installed on a wall or ceiling and installed on the massage chair unit ( 10) Various sensor devices such as an image camera sensor (C5) capable of photographing the rear, a microphone sensor (M) capable of detecting voice recognition or a scream, and a fingerprint recognition sensor (P) for user recognition may be applied.

Here, the image camera sensors (C1), (C2), (C3), (C4) and (C5) are camera devices that can be installed on the massage chair unit 10 or separately installed on a wall or ceiling. In addition, various information terminals that can be connected to the massage chair unit 10 or the server computer of the manufacturer through various networks, that is, smart devices such as a smart phone and a smart pad equipped with a camera may also be applied.

Therefore, when the user is not in the seat or is not a designated user using the above-described image camera sensors, the massage function is stopped or the front and rear of the massage chair are monitored to sound a warning in an abnormal case, or to detect a scream or the like. , can perform various safety functions, such as specializing the user.

Although the present invention has been described with reference to the embodiments shown in the drawings, which are merely exemplary, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

1: cushion part
B: bottom
10: massage chair part
11: Leg Massage
12: foot masseuse
13: heavy plate
14: left airbag
15: right airbag
16: back board
17: electric part cover
F1: leg frame
F2: foot frame
20: sensor unit
21-1: first seating detection sensor
21-2: second seating detection sensor
22-1: first approach detection sensor
22-2: second approach detection sensor
23-1: the first floor jamming detection sensor
23-2: second floor jamming detection sensor
24-1: Left pressure sensor
24-2: Right pressure sensor
25: rear pinch detection sensor
C1, C2, C3, C4, C5: Image camera sensor
M: microphone sensor
P: Fingerprint sensor
30: control unit
31: seated detection control unit
32: unused detection control unit
33: access detection control unit
34: floor jamming detection control unit
35: air pressure sensing control unit
36: rear pinch detection control unit
100: safety device of the massage chair
1000: massage chair system

Claims (13)

Installed in the massage chair unit capable of massaging at least one of the user's head, neck, back, shoulder, waist, hip, arm, hand, leg, foot, and combinations thereof, a sensor unit capable of detecting; and
A control unit capable of receiving an abnormal state signal from the sensor unit and applying a safety measure control signal to the massage chair unit; includes,
The sensor unit,
a first seating detection sensor installed under the cushion part of the massage chair part and installed to be biased toward one corner of the cushion part; and
A second seating detection sensor installed under the cushion part of the massage chair part and installed to be biased toward the other corner, which is a diagonal direction of the one corner of the cushion part;
The control unit is
When a seating detection signal is simultaneously detected by both the first seating detection sensor and the second seating detection sensor, it is determined that the user is normally seated in a normal state, and a power application control signal or a massage driving control signal is applied to the massage chair unit. control unit; and
When a seating detection signal is not detected by at least one of the first seating detection sensor and the second seating detection sensor, it is determined as an abnormal state and a power interruption control signal or massage interruption control signal to prevent abnormal operation by a foreign object Including; an unused detection control unit for applying to the massage chair unit;
The sensor unit,
It is installed in the area from the front surface to the lower surface of the leg frame of the leg massage part to detect a pinch between the leg massage part and the foot massage part of the massage chair part or the approach of a foreign object during massaging and has a first sensing area. or, an approach detection sensor installed in an area from the front surface to the upper surface of the foot frame of the foot massage unit and having a second detection area;
The control unit is
an approach detection control unit for applying a massage stop control signal or an interval widening control signal to the massage chair unit when the approach detection signal is detected by the approach detection sensor;
Containing, the safety device of the massage chair. delete delete delete delete The method of claim 1,
The sensor unit,
a first floor jamming detection sensor installed at one edge of the back plate to detect the trapping or approach of a foreign object between the rear plate and the floor surface on which the leg massage part and the foot massage part are installed; and
a second floor jamming detection sensor installed at the other edge of the rear plate to detect the trapping or approach of a foreign object between the rear plate and the bottom surface on which the leg massage part and the foot massage part are installed;
Containing, the safety device of the massage chair. 7. The method of claim 6,
The control unit is
When an approach detection signal is detected by at least one of the first floor jamming detection sensor and the second floor jamming detection sensor, a floor jamming detection control unit for applying a descending stop control signal or a reverse operation control signal to the massage chair unit;
Containing, the safety device of the massage chair. The method of claim 1,
The sensor unit, at least installed in the inside of the case, a capacitive antenna sensor capable of detecting a change in the surrounding electromagnetic field outside the case, a pressure sensor, a contact switch sensor, face recognition or an image capable of photographing the movement direction of the massage chair A safety device for a massage chair, which is made by selecting any one of a camera sensor, a microphone sensor capable of detecting voice recognition or a scream, a fingerprint recognition sensor for user recognition, and combinations thereof. The method of claim 1,
The sensor unit,
a left pressure sensor for measuring the pressure of air applied to the left airbag of the leg massager or the foot massager of the massage chair; and
a right pressure sensor for measuring the pressure of air applied to the right airbag of the leg massage part or the foot massage part of the massage chair part;
Containing, the safety device of the massage chair. 10. The method of claim 9,
The control unit is
When the difference between the left pressure signal applied from the left pressure sensor and the right pressure signal applied from the right pressure sensor is greater than an allowable value, an air pressure detection control unit that applies an air pressure stop control signal or an air pressure reduction control signal to the massage chair unit ;
Containing, the safety device of the massage chair. The method of claim 1,
The sensor unit,
a rear jamming detection sensor installed on the back plate or the electric part cover so as to detect jamming or approach between the back plate part and the electric part cover of the massage chair part;
Further comprising, the safety device of the massage chair. 12. The method of claim 11,
The control unit is
When an approach detection signal is detected by the rear jamming detection sensor, a rear jamming detection control unit for applying a massage stop control signal or a gap separation control signal to the massage chair unit;
Containing, the safety device of the massage chair. A massage chair system comprising the safety device according to any one of claims 1 and 6 to 12.

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