KR20210084228A - Massage Chair and Safe Mode Operation Method for Massage Chair - Google Patents

Abstract

The present invention provides a massage chair added with a prevention function of negligent accidents capable of occurring in the massage chair. In the massage chair, a length of a leg fixing part or a foot fixing part can be controlled when a user seats on the massage chair, and the length of a leg fixing part or a foot fixing part cannot be controlled when the user does not seat on the massage chair.

Description

Massage Chair and Safe Mode Operation Method for Massage Chair

The present invention relates to a massage chair and a method of operating the massage chair in a safe mode.

Many people receive massage to relieve their stiff bodies from stress and muscle cramps due to lack of exercise. However, massage chairs that can be conveniently used at home have been developed and used because they cannot receive massages from professional masseurs for various reasons.

Recently, a massage chair capable of adjusting the distance between the leg fixing part and the foot fixing part of the massage chair has been developed and used. This massage chair maximizes the massage feeling by adjusting the distance between the leg fixing part and the foot fixing part according to the user's body size, specifically, the lower body length, so that the user's lower body is in close contact with the leg fixing part and the foot fixing part. is the purpose

However, recently, it has been reported that an infant died by getting caught in the space between the leg fixing part and the foot fixing part, and the number of massage chair safety accidents is increasing year by year. There is no massage chair that meets the needs.

On the other hand, in addition to the above-mentioned cases, when a child who has not matured bones or an elderly person with weak bones sits in a massage chair and receives a massage chair, there is a problem that not only the burden is placed on the person to be massaged, but also the efficiency of the massage is greatly reduced. In the case of a conventional massage chair, the massage operation has been performed with the same massage intensity regardless of the body condition such as the height and weight of the person to be massaged, but this has caused a problem in that the massage efficiency is lowered.

In addition, the massage chair can perform a massage mode in order to provide a feeling of massage, which is generally implemented through rolling and pressing of a massage ball assembly, and compression by inflation of an airbag.

However, if the degree of inflation of the airbag is excessive, the airbag itself may explode, causing damage to the body and even death due to excessive pressure.

Since massage chair users are highly likely to be unable to cope with unexpected safety accidents such as going to bed while receiving a massage, the demand for technology that can prevent safety accidents that may occur when operating the massage mode in the massage chair is increasing. there is a situation.

Korean Patent Publication No. 10-2016-0049622 relates to a massage chair having an accident prevention function, and when an object approach is detected in a monitoring area or an object jammed state is detected using a safety sensor provided in the massage chair, a massage operation is performed. Suggest a pause. The phenomenon in which an object is caught between the leg fixing part and the foot fixing part generally occurs when the massage chair is not used for seating, and the patent document supplies power to the safety sensor only when a user's seating is detected. , by stopping the power supply to the safety sensor when no user sitting is detected, the safety mode does not operate, so it is difficult to prevent safety accidents occurring in the actual massage chair in advance.

Meanwhile, in addition to the above types of safety accidents, various cases have been reported, such as safety accidents caused by excessive pressure of the airbag and safety accidents caused by overturning of the massage chair. is urgently required.

Korean Patent Publication No. 10-2016-0049622 (2016.05.10) Korean Patent Publication No. 10-2015-0039466 (2015.04.10) Korean Patent Publication No. 10-2010-0031270 (2010.03.22)

The present invention has been devised to solve the above problems.

Specifically, when the user is seated in the massage chair, the length of the foot fixing part or the leg fixing part is controlled to be adjustable, and when the user is not seated in the massage chair, the length adjustment of the foot fixing part or the leg fixing part is blocked. It is an object of the present invention to provide a massage chair in which a safety accident in which an object, particularly an infant, is caught in the space between the foot fixing part - the leg fixing part or the leg fixing part - the seat part by controlling it as possible.

In addition, when the first angle α between the seat portion and the backrest portion or the third angle γ between the ground and the backrest portion is greater than or equal to a predetermined angle, the length adjustment of the foot fixing unit or the leg fixing unit is controlled to be blocked By doing so, the purpose is to provide a massage chair that prevents an accident in which the massage chair overturns forward.

Another object of the present invention is to provide a massage chair in which an injury accident due to excessive inflation of the airbag is prevented by controlling the injection time of the fluid injected into the airbag.

In addition, when the user's shoulder height and weight are detected and the predetermined criteria are not met, the massage action by the massage ball assembly and the airbag is controlled to be blocked, thereby preventing the risk of injury to the elderly or children who are not suitable for using the massage chair. Its purpose is to provide a massage chair that does

An embodiment of the present invention for solving the above problems is a seat portion 200, a backrest installed at one end of the seat portion 200 at a first angle (α) with respect to the seat portion 200 The distance to the part 100, the leg fixing part 300 installed at the other end of the seat part 200 at a second angle β with respect to the seat part, and the leg fixing part 300 is farther or closer A first driving unit 710 that is movable so as to be movable, a first driving unit 710 connected to the leg fixing unit 300 and the foot fixing unit 310 to provide a driving force for movement of the foot fixing unit, the The first sensor unit S1 installed inside the foot fixing unit 310 and outputting a first input pressure signal by sensing the pressure applied from the outside, and the first input output from the first sensor unit S1 When the pressure level of the pressure signal is equal to or greater than a predetermined first pressure level, the first driving unit 710 is supplied with power to enable movement of the foot fixing unit 310 with respect to the leg fixing unit 300 . By outputting a control signal, and when the pressure level of the first input pressure signal output from the first sensor unit S1 is less than the predetermined first pressure level, the power supply to the first driving unit 710 is cut off. It provides a massage chair, including a control unit 800 for outputting a second control signal to block the movement of the foot fixing unit 310 with respect to the leg fixing unit (300).

In one embodiment, the movement of the backrest 100 is reduced or increased so that the first angle α decreases or increases, or the third angle γ between the backrest 100 and the ground decreases or increases. Further comprising a second driving unit 720 providing a driving force for the control and a second sensor unit (S2) detecting the first angle (α) or the third angle (γ) and outputting an input angle signal, the control unit Reference numeral 800 may output the second control signal when the angular level of the input angular signal output from the second sensor unit S2 is equal to or greater than a predetermined angular level.

In one embodiment, the arm fixing part 410 installed on both side ends of the seat part 200 and having an arm insertion groove into which the user's arm is inserted, in advance facing upward from the seat part 200 . The shoulder fixing unit 120, the seat unit 200, the backrest unit 100, the leg fixing unit 300, the foot height installed at both ends of the backrest unit 100 and located at a determined height. The airbag unit (A) including a plurality of airbags installed on at least one of the government (310), the arm fixing unit (410), and the shoulder fixing unit (120), the airbag unit (A) to inflate the airbag unit ( A valve part (V) including a fluid injection part 900 for injecting a fluid into A) and a plurality of valves for opening or closing a fluid injection passage between the airbag part (A) and the fluid injection part 900 may include more.

In an embodiment, when the airbag massage operation is performed by the airbag unit A, the control unit 800 is configured to allow a fluid injection time into the airbag unit A to be longer than a predetermined first time and the predetermined first time. A third control signal for controlling the operations of the fluid injection unit 900 and the valve unit V may be output to be shorter than the longer predetermined second time period.

In one embodiment, the control unit 800, when the number (m) of the currently opened valves among the plurality of valves is less than the number (n) of the plurality of valves provided in the massage chair, the currently opened A third time shorter than the second predetermined time is further calculated according to the number of valves m, and the fluid injection time into the airbag unit A is longer than the first predetermined time and shorter than the third time. A fourth control signal for controlling the operation of the fluid injection unit 900 and the valve unit V may be output.

In one embodiment, a massage ball 640 mounted on the inside of the backrest 100 and movable up and down along the backrest 100 and a massage ball coupled to the massage ball 640 and installed with one or more massage balls. The massage ball assembly 600 including a frame and the shoulder height of the user seated in the massage chair are sensed according to a change in the pressure applied to the massage ball assembly 600, and the input shoulder height according to the sensed shoulder height Further comprising a third sensor unit (S3) for outputting a signal, wherein the control unit (800) when the level of the input shoulder height signal output from the third sensor unit (S3) is smaller than a predetermined shoulder height level, A fifth control signal for stopping the massage operation by the airbag unit A and the massage ball assembly 600 may be output.

In one embodiment, it is installed inside the seat part 200, and further comprises a fourth sensor part (S4) for detecting the pressure applied to the seat part 200 and outputting a second input pressure signal, The controller 800 may output the fifth control signal when the level of the second input pressure signal output from the fourth sensor unit S4 is lower than a predetermined second pressure level.

In addition, the present invention provides a seat portion 200, a backrest portion 100 installed at one end of the seat portion 200 at a first angle α with respect to the seat portion 200, and the seat portion 200. A leg fixing part 300, the leg fixing part 300 installed at the other end at a second angle β with respect to the seat part 200 and movable so that the distance to the seat part 200 increases or becomes closer. It is connected to the foot fixing part 310 movable together with the leg fixing part 300, and is connected to the seat part 200 and the leg fixing part 300 to provide a driving force for the movement of the leg fixing part. The third driving unit 730 provided, the first sensor unit S1 installed inside the foot fixing unit 310, and outputting a first input pressure signal by sensing the pressure applied from the outside, and the first sensor unit When the pressure level of the first input pressure signal output in (S1) is equal to or greater than the first predetermined pressure level, power is supplied to the third driving unit 710 to provide the seat portion 200 of the leg fixing unit 300 . Outputs a sixth control signal that enables movement of , and when the pressure level of the first input pressure signal output from the first sensor unit S1 is less than the predetermined first pressure level, the third driving unit It provides a massage chair, including a control unit 800 for outputting a seventh control signal for blocking the movement of the leg fixing unit 300 with respect to the seat unit 200 by blocking the power supply to (730).

In one embodiment, a driving force for the movement of the backrest is provided so that the first angle α decreases or increases, or the third angle γ between the backrest 100 and the ground decreases or increases. It further includes a second driving unit 720 and a second sensor unit (S2) for detecting the first angle (α) and outputting an input angle signal, the control unit 800, the second sensor unit (S2) ), the seventh control signal may be output when the angle level of the input angle signal output is equal to or greater than a predetermined angle level.

In one embodiment, the arm fixing part 410 installed on both side ends of the seat part 200 and having an arm insertion groove into which the user's arm is inserted, in advance facing upward from the seat part 200 . The shoulder fixing unit 120, the seat unit 200, the backrest unit 100, the leg fixing unit 300, the foot height installed at both ends of the backrest unit 100 and located at a determined height. The airbag unit (A) including a plurality of airbags installed on at least one of the government (310), the arm fixing unit (410), and the shoulder fixing unit (120), the airbag unit (A) to inflate the airbag unit ( A) a valve unit (V) including a fluid injection unit 900 for injecting a fluid and a plurality of valves for opening or closing a fluid injection passage between the airbag unit (A) and the fluid injection unit 900; may include

In an embodiment, when the airbag massage operation is performed by the airbag unit A, the control unit 800 is configured to allow a fluid injection time into the airbag unit A to be longer than a predetermined first time and the predetermined first time. A third control signal for controlling the operations of the fluid injection unit 900 and the valve unit V may be output to be shorter than the longer predetermined second time period.

In one embodiment, the control unit 800, when the number (m) of the currently opened valves among the plurality of valves is less than the number (n) of the plurality of valves provided in the massage chair, the currently opened A third time shorter than the second predetermined time is further calculated according to the number of valves m, and the fluid injection time into the airbag unit A is longer than the first predetermined time and shorter than the third time. A fourth control signal for controlling the operation of the fluid injection unit 900 and the valve unit V may be output.

In one embodiment, a massage ball 640 mounted inside the backrest 100 and movable up and down along the backrest 100 and coupled to the massage ball 640 and having one or more massage balls installed. The massage ball assembly 600 including a frame and the shoulder height of the user seated in the massage chair are sensed according to a change in the pressure applied to the massage ball assembly 600, and the input shoulder height according to the sensed shoulder height Further comprising a third sensor unit (S3) for outputting a signal, wherein the control unit (800) when the level of the input shoulder height signal output from the third sensor unit (S3) is smaller than a predetermined shoulder height level, A fifth control signal for stopping the massage operation by the airbag unit A and the massage ball assembly 600 may be output.

In one embodiment, it is installed inside the seat part 200, and further comprises a fourth sensor part (S4) for detecting the pressure applied to the seat part 200 and outputting a second input pressure signal, The controller 800 may output the fifth control signal when the level of the second input pressure signal output from the fourth sensor unit S4 is lower than a predetermined second pressure level.

In addition, the present invention provides a massage method using the above-mentioned massage chair.

In addition, the present invention provides a program stored in a computer-readable recording medium to execute the massage method.

According to the present invention, the length of the foot fixing part or the leg fixing part is controlled so that the length of the foot fixing part or the leg fixing part can be adjusted when the user is seated on the massage chair, and the length of the foot fixing part or the leg fixing part is controlled in the state where the user is not seated on the massage chair. By controlling the blocking, a safety accident in which an object, in particular a child, is caught in the space between the foot fixing part - the leg fixing part or the leg fixing part - the seat part is prevented.

In addition, when the first angle α between the seat portion and the backrest portion or the third angle γ between the ground and the backrest portion is greater than or equal to a predetermined angle, the length adjustment of the foot fixing unit or the leg fixing unit is controlled to be blocked By doing so, an accident in which the massage chair overturns forward is prevented.

In addition, by controlling the injection time of the fluid injected into the airbag, an injury accident due to excessive inflation of the airbag is prevented.

In addition, when the user's shoulder height and weight are detected and the predetermined criteria are not met, the massage operation by the massage ball assembly and airbag is controlled to be blocked, thereby preventing the risk of injury to the elderly or children who are not suitable for using the massage chair. do.

1 is a perspective view of a massage chair according to the present invention.
2 is a view for explaining an airbag provided in the massage chair according to the present invention.
3 is a view for explaining the massage ball assembly provided in the massage chair according to the present invention.
4 is a view for explaining a safety mode performed in a massage chair according to an embodiment of the present invention.
5 is a view for explaining a safety mode performed in a massage chair according to another embodiment of the present invention.
6 is a view for explaining the airbag safety mode performed in the massage chair according to the present invention.
7 is a view for explaining the airbag unit of the massage chair according to the present invention, and a configuration connected thereto.
FIG. 8 is a view for explaining the operation of components of the massage chair that may be performed in the massage chair of FIG. 4 .
FIG. 9 is a view for explaining the operation of components of the massage chair that may be performed in the massage chair of FIG. 5 .
10 to 12 are views for explaining a massage chair safe mode operation method according to the present invention.

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

Hereinafter, assuming that the user is seated in the massage chair in FIGS. 1 to 3, the upper part of the user is the upper part, the lower part is the lower part, and the part that the user looks at is the front, and the part opposite to the front is the rear part. do.

Mode selection, change, and operation of the massage chair according to the operation unit 500 to be described later. When a signal is applied to the operation unit 500, the signal is transmitted to the control unit 800. This is also a known technology, A detailed description of its operating principle will be omitted.

Hereinafter, "massage mode" is referred to as a mode in which various components of the massage chair operate in order to provide a feeling of massage to the user. For example, pressure due to the operation of various airbags provided in the massage chair, rolling and pressing of the massage ball assembly 600 provided in the massage chair back 100, and the backrest 100 and the leg fixing unit 300 may include movement of the upper body, lower body, and legs according to the relative movement of

1 to 3, a massage chair in which the method according to the present invention is performed will be described.

The massage chair includes a backrest part 100 , a seat part 200 , a leg fixing part 300 , a support frame 400 , an operation part 500 , a massage ball assembly 600 , a driving part 700 , a control part 800 . , a fluid injection unit 900 , a sensor unit S, a valve unit V, and an airbag unit A.

The backrest part 100 is a part that supports the user's back, and can be adjusted at a predetermined angle relative to the fixed support frame 400 and the seat part 200 . That is, the backrest 100 rotates forward (the first angle α between the backrest and the seat portion is reduced) or rotates backward (first angle ( ) in a state in which one side is fixed to the seat portion 200 ). α) can increase).

In another embodiment, the frame constituting the backrest 100 and the seat 200 is integrally provided, and the first angle α between the back 100 and the seat 200 is fixed, The outer rear surface of the backrest 100 approaches the ground (the third angle γ between the backrest and the ground increases), or rotates away from it (the third angle γ between the backrest and the ground decreases) It is also possible to

A second driving unit 720 connected to the backrest 100 and the seat 200 for rotational movement of the backrest 100 and providing a driving force required for rotational movement is provided. The second driving unit 720 includes, for example, a driving motor and an actuator, and may rotate the backrest 100 through an operation in which the actuator expands or contracts by the rotation of the driving motor. A rotary movement method using a driving motor and an actuator is a well-known technology, and a detailed description of its operation principle will be omitted.

A waist airbag 109 may be mounted inside the backrest 100 , and the waist airbag may include a right waist airbag 109a and a left waist airbag 109b.

In addition, each of the waist airbags 109 and 109b may have a structure in which two airbags are stacked, but is not limited thereto and may have a structure in which fewer or more airbags are stacked.

A headrest 110 to which the user's head touches is located on the upper portion of the backrest 100 .

The headrest 110 is preferably made of a material capable of providing a cushioning feeling, and in another embodiment, a separate airbag may be provided inside the headrest 110 .

A pair of shoulder fixing units 120 are provided on both left and right sides of the headrest 110 of the backrest 100, and a right shoulder airbag 129a and a left shoulder airbag 129b are provided in the shoulder fixing unit 120, respectively. can be mounted.

Each of the shoulder airbags 129a and 129b may have a structure in which three airbags are stacked, but is not limited thereto and may have a structure in which a smaller or larger number of airbags are stacked.

The headrest 110 and the shoulder fixing unit 120 are fixedly positioned on the backrest 100, and when the backrest 100 moves in a direction closer to or away from the ground, the headrest 110 and the shoulder fixing unit (120) works together with the backrest (100).

The seat portion 200 is a portion in contact with the user's hips and upper thighs, and is generally fixed to the support frame 400 . The seat portion 200 is preferably made of a material that can provide a cushioning feeling.

A right pelvic airbag 209a and a left pelvic airbag 209b may be mounted on both sides of the seat portion 200 and the support frame 400 inwardly toward the user. Accordingly, as shown in FIG. 2 , the right pelvic airbag 209a and the left pelvic airbag 209b take the same shape as a bag that can be inflated at the left and right ends of the seat part 200 . .

Each of the pelvic airbags 209a and 209b may have a structure in which three airbags are stacked, but is not limited thereto and may have a structure in which fewer or more airbags are stacked.

A fourth sensor unit S4 for outputting an input pressure signal according to a pressure applied from the outside is installed in the seat unit 200 . The fourth sensor unit S4 may be, for example, a pressure sensor, and serves to detect the weight of the massage chair user.

The leg fixing unit 300 is a part that holds the user's leg, and as shown in FIG. 1 , a pair of grooves are provided so that the user's calf can be inserted.

In addition, the leg fixing unit 300 can be adjusted at a predetermined angle relative to the fixed support frame 400 and the seat unit 200 . In this case, the angle between the seat part 200 and the leg fixing part 300 is referred to as a second angle β (see FIGS. 8 and 9 ).

A right leg airbag 309a and a left leg airbag 309b may be mounted in the groove of the leg fixing unit 300 , and the right leg airbag 309a is provided on the right inner surface of the groove of the right leg fixing unit 300 . It may include a first right leg airbag 309aa and a second right leg airbag 309ab provided on the left inner surface of the groove of the right leg fixing part 300 , and the left leg airbag 309b is the left leg fixing part 300 . The first left leg airbag 309ba provided on the right inner surface of the groove of 300 and the second left leg airbag 309bb provided on the left inner surface of the groove of the left leg fixing unit 300 may be included.

In one embodiment, the leg fixing unit 300 is configured to move away from or closer to the seat unit 200 . Through this, it is possible to massage according to the user's body size. For example, in the case of a massage chair user having a large height or a long lower body, if the distance from the frontmost part of the seat 200 to the foot fixing part 310 is short, the lower body is the leg fixing part 300 and the foot height. Since it is not in close contact with the top part 310, the delivery of the lining by the airbag part A is reduced. If the leg fixing part 300 is configured to move away from or closer to the seat part 200, the length from the frontmost part of the seat part 200 to the foot fixing part 310 can be freely adjusted, so that the user's It has the advantage that body size customized massage is performed. A third driving unit 730 connected to the leg fixing unit 300 and the seat unit 200 for movement (linear movement) of the leg fixing unit 300 with respect to the seat unit 200 to provide a driving force required for linear movement. is provided The third driving unit 730 includes, for example, a driving motor and an actuator, and may move the leg fixing unit 300 through an operation in which the actuator expands or contracts by rotation of the driving motor. A moving method using a driving motor and an actuator is a well-known technology, and a detailed description of its operation principle will be omitted.

At the lower end of the leg fixing unit 300 , the foot fixing unit 310 is positioned.

The foot fixing unit 310 is a part for fixing the foot on which the user puts his/her foot during the massage operation, and as shown in FIG. 1 , a groove is provided so that the user's foot can be inserted.

The foot fixing unit 310 is connected and installed to the leg fixing unit 300 , and when the leg fixing unit 300 operates to change the second angle β, it operates together.

The foot fixing unit 310 is integrally formed with the leg fixing unit 300 so that the relative position of the foot fixing unit 310 with respect to the leg fixing unit 300 can be moved together while being fixed, but in another embodiment, the foot high The government 310 can move up and down relative to the leg fixing part 300 (moving the foot fixing part closer to or away from the leg fixing part), so it is appropriate according to the user's body size (ie, the length of the leg or calf). may be tailored. A first driving unit (linear movement) connected to the foot fixing unit 310 and the leg fixing unit 300 to provide a driving force required for linear movement of the foot fixing unit 310 with respect to the leg fixing unit 300 (linear movement). 710) is provided. The first driving unit 710 may linearly move the foot fixing unit 310 using, for example, a driving motor and an actuator, and a linear movement method using a driving motor and an actuator is a well-known technology, and the principle of operation thereof is A detailed description thereof will be omitted.

A right foot airbag 319a and a left foot airbag 319b may be mounted in the groove of the foot fixing unit 310 , and the right foot airbag 319a is the first airbag 319a provided on the right inner surface of the right foot fixing unit 310 . It may include a right foot airbag 319aa and a second right foot airbag 319ab provided on the left inner surface of the right foot fixing unit 310 , and the left foot airbag 319b is the left foot fixing unit 310 . It may include a first left foot airbag 319ba provided on the right inner surface and a second left foot airbag 319bb provided on the left inner surface of the left foot fixing unit 310 .

The support frame 400 is positioned on the left and right of the seat part 200 and firmly fixes the massage chair as a whole during the operation of the backrest part 100 and the leg fixing part 300 or the operation of the foot fixing part 310 . To this end, a bracket capable of fixing the massage chair to the floor may be located at the lower end of the seat frame 400 . A moving part 401 for moving the massage chair is provided at the lower rear end of the support frame 400 .

An arm fixing part 410 is positioned at the upper end of the support frame 400 .

The arm fixing part 410 is a part for fixing the arm on which the user can put his or her arm during the massage operation, and is provided in the form of a groove so that the user's arm can be inserted as shown in FIG. 1 .

Referring to FIG. 2 , the right arm fixing unit 410 is provided with a right arm airbag 419a.

The right arm airbag 419a includes a first right arm rear airbag 419aa provided at the rear upper side of the right arm fixing unit 410, and a second right arm rear airbag provided at the rear lower side of the right arm fixing unit 410 ( 419ab), a first right arm front airbag 419ac provided on the front upper side of the right arm fixing part 410 and a second right arm front airbag 419ad on the front lower side of the right arm fixing part 410 may be included. have.

Each of the right arm airbags 419aa, 419ab, 419ac, and 419ad may have a structure in which two airbags are stacked, but is not limited thereto and may have a structure in which fewer or more airbags are stacked.

Although not shown in FIG. 2 , the left arm airbag having the same shape as the right arm airbag 419a mounted in the groove of the right arm fixing unit may be mounted in the groove of the left arm fixing unit 410 , and the left arm airbag is the left arm airbag. The first left arm rear airbag provided on the rear upper side of the arm fixing unit, the second left arm rear airbag provided on the rear lower side of the left arm fixing unit, the first left arm front airbag provided on the front upper side of the left arm fixing unit, and and a second left arm front airbag provided at a lower front side of the left arm fixing unit.

Each of the left arm airbags may have a structure in which two airbags are stacked, but is not limited thereto and may have a structure in which fewer or more airbags are stacked.

The manipulation unit 500 is a user-operable part, and is formed in the form of a button or a touch panel.

In general, the operation unit 500 is provided on the right side of the massage chair to enable convenient operation with the right hand, but may be provided on the left side in some cases.

It is preferable that the operation unit 500 and the massage chair are connected with a material that is hard and whose shape can be changed to some extent, and a cable connecting the operation unit 500 and the control unit 800 inside the massage chair is mounted on the inside thereof. can be

The user may select various modes (massage mode, stretching mode, etc.) through the operation unit 500 and apply the signal to the control unit 800, and accordingly, the operation unit 500 transmits a signal corresponding to the mode to the control unit ( 800) to operate the actuator of the driving unit 700 to operate the backrest 100, the leg fixing unit 300, and the foot fixing unit 310 to operate the first angle (α), the second angle (β) and changing the third angle γ, or controlling the operation of the massage ball assembly 600 and various airbags 129, 209, 309, 319, and 419.

In addition, it is preferable that the manipulation unit 500 is provided so that the user can change the predetermined shoulder height value and the predetermined weight value, so that it can be appropriately changed according to the member of the massage chair use. In addition, in addition to directly changing the predetermined shoulder height value and the predetermined weight value, for example, only the age limit of use is input to the operation unit 500 so that users with an age of 10 years or less and 70 years or older cannot use it. Only by automatically calculating the average shoulder height value and weight value of a person of 10 years of age and the average shoulder height value and weight value of a person having an age of 70 years, the predetermined shoulder height value and weight value change It is also possible to be provided so that it is possible.

The massage ball assembly 600 is mounted inside the backrest 100 to deliver a massage to the massage chair user according to its operation.

Referring to Figure 3, the massage ball assembly 600 according to the embodiment of the present invention is a main frame 610, tilting frames (620, 630), massage balls (621, 631), heating balls (622, 632), It may include a massage ball 640 and an elastic member 650 .

However, it is not limited to the massage ball assembly 600 including the above-described configuration, and as an example, the massage ball assembly including the main frame, and the configuration of the massage balls installed at the top and bottom of the main frame, respectively, is also a massage ball of the present invention. It may be included in the category of the assembly, and it will be said that any structure that is mounted inside the backrest 100 and can deliver a massage to the massage chair user according to its operation can be applied.

Hereinafter, the massage ball assembly 600 includes the main frame 610, the tilting frames 620 and 630, the massage balls 621 and 631, the heating balls 622 and 632, the massage ball 640 and the elastic member 650. ) will be described in more detail on the assumption that it includes.

One massage ball assembly 600 is provided with two main frames 610, and can be mounted one at both ends of the massage ball 640 mounted on the backrest 100, and the top and bottom of the massage ball 640. The main frame 610 may be moved according to the left and right movement.

For fixing to the massage ball 640 , a fixing groove 611 is formed in the center of the main frame 610 . As the fixing method, a screw fastening method may be applied, but the method is not limited thereto and any method that can be fixed to the massage ball 640 may be applied.

The main frame 610 includes a first main frame 612 extending from the fixing groove 611 toward the backrest 100 and a second main frame 613 extending downward.

The tilting frames 620 and 630 are parts rotatably mounted at both ends of the main frame 610, and massage balls 621 and 631 and heating balls 622 and 632 are mounted on the tilting frames 620 and 630. .

The main frame 610 is fixed to the massage ball 640, but the tilting frames 620 and 630 are rotatably mounted with respect to the main frame 610 to reflect the user's shoulder, back, waist, and hip curves. This is the part that provides the best comfort.

Specifically, the tilting frames 620 and 630 may be an embodiment in which a total of two tilting frames 620 and 630 are mounted, one at the end of the first main frame 612 and one at the end of the second main frame 613, An embodiment in which only one is mounted at the distal end of the first main frame 612 and an embodiment in which only one is mounted at the distal end of the second main frame 613 are possible.

That is, according to the operation of the massage ball 640, the main frame 610 installed in the massage ball 640 and the tilting frames 620 and 630 installed in the main frame 610 are operated together, and the massage ball installed at the end of the frame As the 621 and 631 and the heating balls 622 and 632 move along the curve of the user's back, the lining is delivered to the contact body part.

Here, as the shoulder height massage ball assembly 600 moves upward from the lowest surface, the massage balls 621 and 631 come into contact with the user's back. The pressure applied to the ball is reduced compared to when Accordingly, it may be assumed that the height at which the pressure applied to the ball is reduced is the user's shoulder height. To this end, the massage ball assembly 600 is provided with a third sensor unit S3 in the form of a pressure sensor.

The driving unit 700 is configured to provide a driving force for movement of the components (backrest portion, leg fixing portion, foot fixing portion, massage ball assembly) of the massage chair according to the present invention.

The driving unit 700 includes a first driving unit 710 that provides a driving force for rotational movement of the backrest 100 , and a second driving unit that provides a driving force to move the foot fixing unit 310 with respect to the leg fixing unit 300 . It includes a driving unit 720 and a third driving unit 730 that provides a driving force to move the leg fixing unit 300 with respect to the seat unit 200 . In addition, a driving unit providing a driving force to rotate the leg fixing unit 300 with respect to the seat unit 200, and a driving unit providing a driving force to move the massage ball assembly 600 are included.

Each driving unit 700 may include a driving motor and an actuator connected to the driving motor that expands or contracts according to the rotation of the driving motor, and by extension or contraction of the actuator, the configuration of the massage chair connected thereto moves. do.

The sensor unit (S) is installed in the massage chair configuration to output a signal matching the current position and state of each configuration, or to output a signal matching a signal applied from the outside.

The first sensor unit (S) is installed on the inner rear side of the foot fixing unit 310, configured to output a first input pressure signal according to the pressure applied from the outside. To this end, the first sensor unit S may be provided in the form of a pressure sensor, and a predetermined pressure may be applied to the first sensor unit S when the massage chair user sits and leans against his/her body. Conversely, when the massage chair user is absent, no pressure is applied to the first sensor unit S. The first sensor unit S transmits a first input pressure signal having a size matching the level of the applied pressure to the control unit 800 .

The second sensor unit S2 is connected to the second driving unit 720 to sense the first angle α between the seat unit 200 and the backrest 100 or the angle between the backrest 100 and the ground. do. For example, the second sensor unit S2 may be installed on the rotation shaft of the driving motor of the second driving unit 720 to sense the angle according to the rotation angle of the driving motor.

The second sensor unit S2 transmits an input angle signal having a size matching the size of the sensed angle to the controller 800 .

The third sensor unit S3 may be a pressure sensor or a shoulder height detection sensor provided in the above-described massage ball assembly 600, and transmits an input shoulder height signal having a size matching the shoulder height sensed in each to the control unit 800 ) will be sent to

The fourth sensor unit S4 may be a pressure sensor installed inside the seat unit 200, and controls a second input pressure signal having a size matching the size of the externally applied pressure (ie, the user's weight). (800) is sent.

The fluid injection unit 900 is connected in fluid communication with the airbag unit A provided in the massage chair, and injects a fluid into the airbag unit A so that the airbag unit A expands or contracts or sucks the injected fluid. do. Here, the airbag unit (A) is a concept including all airbags provided in the massage chair according to the present invention.

In the massage chair according to the present invention, the fluid injection unit 900 is communicatively connected to each airbag through a fluid injection passage, and a valve unit V is installed in each of the fluid injection passages.

The valve unit V is configured to open or close the fluid injection path, and each valve opens or closes the installed fluid injection path according to a control signal of the controller 800 .

The control unit 800 is configured to receive a signal transmitted from the sensor unit S, and generates a control signal for controlling the operation of the massage chair according to the received signal.

This will be described in detail with reference to FIGS. 10 and 11 .

When the level of the first input pressure signal output from the first sensor unit S1 is equal to or greater than a predetermined first pressure level, the control unit 800 supplies power to the first driving unit 710 to control the foot fixing unit 310 by supplying power to the first driving unit 710 . A first control signal that enables movement with respect to the leg fixing unit 300 is generated. When the level of the first input pressure signal is equal to or greater than the predetermined first pressure level, it means that the user is actually seated in the massage chair. At this time, the user's leg is inserted into the foot fixing unit 310 and the leg fixing unit 300 , and even if the distance adjustment function between the foot fixing unit 310 and the leg fixing unit 300 is activated, the infant A safety accident problem of being caught in the space between the foot fixing part 310 and the leg fixing part 300 does not occur.

When the level of the first input pressure signal output from the first sensor unit S1 is smaller than the predetermined first pressure level, the control unit 800 cuts off the power supply to the first driving unit 710 to thereby prevent the foot fixing unit 310 from being supplied. ) to generate a second control signal that blocks movement of the leg fixing unit 300 . When the level of the first input pressure signal is less than the predetermined first pressure level, it means that the user is not seated in the massage chair. At this time, if the length adjustment function between the foot fixing unit 310 and the leg fixing unit 300 is activated, the infant is caught in the space between the foot fixing unit 310 and the leg fixing unit 300 during the length adjustment process. This is to block the activation of the length adjustment function at the source because a safety accident problem may occur.

In the case of a massage chair in which the leg fixing unit 300 moves away from or closer to the seat unit 200 is implemented, the control unit 800 may generate a control signal in the same manner as described above.

That is, when the level of the first input pressure signal output from the first sensor unit S1 is equal to or greater than the first predetermined pressure level, the control unit 800 supplies power to the third driving unit 730 to supply power to the leg fixing unit 300 . ) to generate a sixth control signal that enables movement of the seat portion 200 . In addition, when the level of the first input pressure signal output from the first sensor unit S1 is smaller than the first predetermined pressure level, the control unit 800 cuts off the power supply to the third driving unit 730 to thereby prevent the leg fixing unit from being supplied. A seventh control signal for blocking the movement of the seat portion 200 of the 300 is generated.

In the case of a massage chair in which the leg fixing part 300 moves away from or closer to the seat part 200 is implemented, a safety accident in which the infant's leg fixing part 300 is caught in the space between the seat parts 200 Since a problem may occur, it is possible to prevent a safety accident in advance through the above method.

Also, the controller 800 generates a second control signal when the level of the input angle signal output from the second sensor unit S2 is greater than or equal to the predetermined angle level.

The predetermined angle level may be 148.5 degrees to 181.5 degrees, and more specifically, 165 degrees.

For seating the massage chair, the user's foot is first seated on the foot fixing unit 310, and in this state, the thigh, hip, back, and shoulder are in contact with the seat portion 200 and the backrest portion 100 of the massage chair. Seating is complete.

Here, the seat part 200 is supported by the support frame 400 and the support frame 400 , but the leg fixing part 300 has one side fixed to the seat part 200 in a state spaced apart from the ground. . Therefore, in a state where the first angle α between the backrest 100 and the seat 200 or the angle between the back 100 and the ground is at a predetermined angle level or higher, stand on the foot fixing unit 310 or When a predetermined force is applied in a hanging manner, the center of gravity of the massage chair is rapidly shifted toward the front, resulting in a safety accident in which the massage chair overturns toward the front. In particular, at a position in which the foot fixing unit 310 is maximally extended with respect to the leg fixing unit 300 or a position in which the leg fixing unit 300 is maximally extended with respect to the seat unit 200, the user may use the foot fixing unit ( 310), since there is a high possibility that the massage chair overturns toward the front, at this time, the length adjustment function of the leg fixing unit 300 or the foot fixing unit 310 is also controlled to be blocked.

In the case of a massage chair in which the leg fixing unit 300 moves away from or closer to the seat unit 200 is implemented, the control unit 800 may generate a control signal in the same manner as described above.

That is, when the level of the input angle signal output from the second sensor unit S2 is smaller than the predetermined angle level, the control unit 800 supplies power to the third driving unit 730 to provide power to the seat of the leg fixing unit 300 . Generates a sixth control signal that enables movement with respect to the unit 200 . In addition, when the level of the input angle signal output from the second sensor unit S2 is equal to or greater than the first predetermined pressure level, the control unit 800 cuts off the power supply to the third driving unit 730 to thereby prevent the leg fixing unit 300 . A seventh control signal for blocking the movement of the seat unit 200 is generated.

In addition, when the level of the input shoulder height signal output from the third sensor unit S3 is smaller than the predetermined shoulder height level, the control unit 800 performs the massage operation by the airbag unit A and the massage ball assembly 600 . Generate a fifth control signal to stop.

The predetermined shoulder height level may be between 389 mm and 475 mm, specifically 432 mm.

If the level of the input shoulder height signal output from the third sensor unit S3 is smaller than the predetermined shoulder height level, it can be evaluated as a child whose bones are not mature, which is not suitable for a user to be massaged in the massage chair. . Since there is a risk of injury when the child is seated in the massage chair and massage is performed by the airbag unit A and the massage ball assembly 600, the control unit 800 controls the fifth control signal to stop the massage operation. to prevent safety accidents in advance.

Also, when the level of the second input pressure signal output from the fourth sensor unit S4 is lower than a predetermined second pressure level, the controller 800 generates a fifth control signal.

The second predetermined pressure level may be 24.3 kg to 29.7 kg, specifically 27 kg.

The fact that the level of the second input pressure signal output from the fourth sensor unit S4 is lower than the predetermined second pressure level is evaluated as unsuitable as a user who is the subject of massage of the massage chair, such as the elderly and children with weak bones. Therefore, the control unit 800 generates a fifth control signal to stop the massage operation to prevent a safety accident in advance.

In addition, when performing the massage operation by the airbag unit (A), the control unit 800, the fluid injection time to be injected into the airbag unit (A) is longer than the first predetermined time, and is longer than the first predetermined time. A third control signal for controlling the operation of the fluid injection unit 900 and the valve unit V is generated to be shorter than 2 hours.

The first predetermined time is a time for feeling the massage by the airbag unit A, and may be 4.5 seconds to 5.5 seconds, and more specifically 5 seconds.

The second predetermined time is a time for preventing the material of the airbag unit A itself from being damaged or excessively pressing the user's body part, and may be 27 seconds to 33 seconds, and more specifically 30 seconds.

That is, by outputting the third control signal, the control unit 800 may perform massage by the airbag unit A, but the airbag unit A itself explodes by injecting an excessive amount of fluid into the airbag unit A. Prevents safety accidents in advance.

In another embodiment, the control unit 800 calculates the maximum value of the fluid injection time according to the number of valves currently open among the plurality of valves V1 to V6 included in the valve unit V, and is based on the calculated maximum value. The fluid injection time may be controlled accordingly (see FIG. 12 ).

That is, the control unit 800 calculates the number of valves currently open (m, m is an integer greater than or equal to 0), and compares m with the total number of valves (n) provided in the massage chair. The total number of valves provided in the massage chair (n, n is an integer greater than or equal to 1) is a predetermined value when the massage chair is manufactured, which may be stored in a separate memory.

When m=n, the controller 800 controls the operation of the fluid injection unit 900 and the valve unit V so that the fluid injection time is longer than the first predetermined time and shorter than the second predetermined time. generate a signal

When m < n, the control unit 800 controls the fluid injection unit 900 and the valve unit V so that the fluid injection time is longer than the first predetermined time and shorter than the third predetermined time (<the second predetermined time). generates a fourth control signal that controls the operation of

The fact that the number of currently opened valves (m) is smaller than the total number of valves (n) indicates that the amount of fluid injected into each airbag is large, even if the fluid is injected at the same fluid injection time, compared to that when all valves are opened. it means. Therefore, if the maximum fluid injection time is set to the second predetermined time on the assumption that the entire valve is opened in advance, an excessive amount of fluid may be injected into the airbag, which may cause the airbag to explode or cause injury to the user by the airbag pressure. There is a risk.

Therefore, in the present invention, when the number of open valves (m) is smaller than the total number of valves (n), the maximum fluid injection time is calculated again as the third time, and specifically, the third time is calculated through the following equation do.

Third predetermined time = l-(n-m)/n

Here, l is the second predetermined time, n is the number of valves currently open, and m is the total number of valves provided in the massage chair.

That is, it is possible to minimize the risk of injury caused by the airbag unit A by controlling the injection time of the fluid injected into the airbag unit A according to the number m of the currently opened valves.

In the massage chair according to another embodiment of the present invention, the BMI index using the level of the input shoulder height signal output from the third sensor unit S3 and the level of the second input pressure signal output from the fourth sensor unit S4 is used. , and generates a control signal to perform massage with a massage intensity matching the calculated BMI index among a plurality of massage intensities according to the calculated BMI index, thereby performing an operation according to the optimal massage mode according to the user's physical condition can make it happen

The massage chair performs an operation according to a massage mode with a predetermined massage intensity, which is generally an intensity that can achieve optimal massage efficiency for a person having a normal body type. This is defined as "standard massage intensity".

Here, the BMI (Body Mass Index) index is an objective index of body weight using the ratio of height to weight, and ^{can be calculated as a value of weight/height 2} x 100 (%), and the sensed shoulder height is proportional to the height. It is possible to calculate this BMI index using the height and the sensed weight.

When the calculated BMI index is smaller than the first predetermined value (specifically, 15.3% to 18.7%, more specifically, 17%), when the operation according to the massage mode is performed with the standard massage intensity, it will feel painful from the perspective of the massage subject Since it can be recognized as a degree of massage intensity, an operation according to the massage mode is performed with a massage intensity lower than the standard massage intensity.

When the calculated BMI index is greater than a second predetermined value (specifically, 27% to 33%, more specifically 30%) greater than the first predetermined value, the operation according to the massage mode is performed with the standard massage intensity. In this case, since it can be recognized that the massage intensity is enough to feel that the massage is not performed properly, the operation according to the massage mode is performed with a massage intensity stronger than the standard massage intensity.

When the calculated BMI index is greater than or equal to the first predetermined value and less than or equal to the second predetermined value, even if the operation according to the massage mode is performed with the standard massage intensity, the massage target can recognize the optimal massage intensity. The operation is performed according to the mode.

Therefore, according to the present invention, the effect of achieving the optimal massage intensity by performing the operation according to the massage mode with the user-customized massage intensity is achieved.

In another embodiment of the present invention, the level of the input shoulder height signal and the level of the second input pressure signal are sensed again at predetermined time intervals while performing the massage operation, so that the level of the sensed input shoulder height signal is the predetermined shoulder height level When the level of the larger and sensed second input pressure signal is greater than the second predetermined pressure level, the massage operation of the massage chair is continuously performed, and the level of the sensed input shoulder height signal is smaller than the predetermined shoulder height level. or when the level of the sensed second input pressure signal is smaller than the predetermined second pressure level, a control signal for stopping the massage operation of the massage chair is generated.

That is, it is possible to determine whether to continuously perform the massage mode or stop the mode operation by periodically sensing the shoulder height and weight even during the massage mode to evaluate the suitability of the massage chair user.

The method according to an embodiment of the present invention described above may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the present invention, or may be known and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic such as floppy disks. - includes magneto-optical media, and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to carry out the operations of the present invention, and vice versa.

In the above, the present specification has been described with reference to the embodiments shown in the drawings so that those skilled in the art can easily understand and reproduce the present invention, but these are merely exemplary, and those skilled in the art can make various modifications and equivalents from the embodiments of the present invention. It will be appreciated that embodiments are possible. Therefore, the protection scope of the present invention should be defined by the claims.

100: backrest
109a: right waist airbag
109b: Left waist airbag
110: headrest
120: shoulder fixing part
129a: right shoulder airbag
129b: left shoulder airbag
200: sheet portion
209a: Right Pelvic Airbag
209b: Left Pelvic Airbag
300: leg fixing unit
309a: right leg airbag
309b: Left leg airbag
310: foot fixing unit
319a: right foot airbag
319b: Left foot airbag
400: support frame
410: arm fixation
419a: Right arm airbag
419b: Left arm airbag
500: control panel
600: massage ball assembly
610: main frame
620, 630: tilting frame
621, 631: massage ball
622, 632: heating ball
640: massage ball
700: driving unit
710: first driving unit
720: second driving unit
730: third driving unit
800: control unit
900: fluid injection unit
A: Airbag
V: valve part
S1: first sensor unit
S2: second sensor unit
S3: third sensor unit
S4: fourth sensor unit

Claims (16)

seat portion 200;
a backrest part 100 installed at one end of the seat part 200 at a first angle α with respect to the seat part 200;
a leg fixing part 300 installed at the other end of the seat part 200 at a second angle β with respect to the seat part;
a foot fixing unit 310 that is movable so that the distance to the leg fixing unit 300 increases or becomes closer;
a first driving unit 710 connected to the leg fixing unit 300 and the foot fixing unit 310 to provide a driving force for movement of the foot fixing unit;
a first sensor unit (S1) installed inside the foot fixing unit 310, detecting a pressure applied from the outside and outputting a first input pressure signal; and
When the pressure level of the first input pressure signal output from the first sensor unit S1 is equal to or greater than a predetermined first pressure level, power is supplied to the first driving unit 710 to prevent the foot fixing unit 310 from moving. Outputs a first control signal that enables movement with respect to the leg fixing unit 300, and the pressure level of the first input pressure signal output from the first sensor unit S1 is higher than the predetermined first pressure level. When it is small, the control unit 800 outputs a second control signal to block the power supply to the first driving unit 710 to block the movement of the foot fixing unit 310 to the leg fixing unit 300; includes; doing,
massage chair.
According to claim 1,
The first angle α decreases or increases, or the third angle γ between the backrest 100 and the ground decreases or increases so that a driving force for the movement of the backrest 100 is provided. 2 driving unit 720; and
A second sensor unit (S2) for outputting an input angle signal by detecting the first angle (α) or the third angle (γ); further comprising,
The control unit 800 outputs the second control signal when the angular level of the input angular signal output from the second sensor unit S2 is greater than or equal to a predetermined angular level,
massage chair.
According to claim 1,
an arm fixing unit 410 installed at both ends of the seat unit 200 and having an arm insertion groove inside which a user's arm is inserted;
a shoulder fixing unit 120 positioned at a predetermined height toward the upper side from the seat unit 200 and installed at both side ends of the backrest unit 100;
Installed on at least one of the seat 200, the backrest 100, the leg fixing part 300, the foot fixing part 310, the arm fixing part 410, and the shoulder fixing part 120 an airbag unit (A) including a plurality of airbags;
a fluid injection unit 900 for injecting a fluid into the airbag unit A so that the airbag unit A is inflated; and
Further comprising; a valve unit (V) including a plurality of valves for opening or closing the fluid injection passage between the airbag unit (A) and the fluid injection unit (900);
massage chair.
4. The method of claim 3,
When the airbag massage operation is performed by the airbag unit (A),
The control unit 800 controls the fluid injection unit 900 and the valve so that the fluid injection time into the airbag unit A is longer than a first predetermined time and shorter than a second predetermined time longer than the predetermined first time. outputting a third control signal to control the operation of the negative (V),
massage chair.
5. The method of claim 4,
The control unit 800, when the number (m) of the currently opened valves among the plurality of valves is less than the number (n) of the plurality of valves provided in the massage chair, the number of currently opened valves (m) further calculating a third time shorter than the predetermined second time according to
A fourth control signal for controlling the operation of the fluid injection unit 900 and the valve unit V so that the fluid injection time into the airbag unit A is longer than the first predetermined time and shorter than the third time output,
massage chair.
5. The method of claim 4,
A massage ball mounted on the inside of the backrest 100 and movable up and down along the backrest 100 and a massage ball coupled to the massage ball 640 and including a massage frame in which one or more massage balls are installed. assembly 600; and
A third sensor unit (S3) that senses a shoulder height of a user seated in the massage chair according to a change in pressure applied to the massage ball assembly 600, and outputs an input shoulder height signal according to the sensed shoulder height further including;
When the level of the input shoulder height signal output from the third sensor unit S3 is smaller than a predetermined shoulder height level, the control unit 800 is controlled by the airbag unit A and the massage ball assembly 600 . Outputting a fifth control signal to stop the massage operation,
massage chair.
7. The method of claim 6,
A fourth sensor unit (S4) installed inside the seat unit 200, sensing the pressure applied to the seat unit 200 and outputting a second input pressure signal;
The control unit 800 outputs the fifth control signal when the level of the second input pressure signal output from the fourth sensor unit S4 is lower than a predetermined second pressure level,
massage chair.
seat portion 200;
a backrest part 100 installed at one end of the seat part 200 at a first angle α with respect to the seat part 200;
a leg fixing part 300 installed at the other end of the seat part 200 at a second angle β with respect to the seat part 200 and movable so that the distance to the seat part 200 increases or becomes closer;
a foot fixing part 310 connected to the leg fixing part 300 and movable together with the leg fixing part 300;
a third driving unit 730 connected to the seat unit 200 and the leg fixing unit 300 to provide a driving force for movement of the leg fixing unit;
a first sensor unit (S1) installed inside the foot fixing unit 310, detecting a pressure applied from the outside and outputting a first input pressure signal; and
When the pressure level of the first input pressure signal output from the first sensor unit S1 is equal to or greater than a predetermined first pressure level, power is supplied to the third driving unit 710 to prevent the leg fixing unit 300 from moving. Outputs a sixth control signal enabling movement with respect to the seat unit 200, and the pressure level of the first input pressure signal output from the first sensor unit S1 is smaller than the predetermined first pressure level In the case of a control unit 800 for outputting a seventh control signal for blocking the movement of the leg fixing unit 300 with respect to the seat unit 200 by cutting off the power supply to the third driving unit 730;
massage chair.
9. The method of claim 8,
A second driving unit 720 that provides a driving force for movement of the backrest so that the first angle α decreases or increases, or so that the third angle γ between the backrest 100 and the ground decreases or increases. ); and
A second sensor unit (S2) for detecting the first angle (α) and outputting an input angle signal; further comprising,
The control unit 800 outputs the seventh control signal when the angular level of the input angular signal output from the second sensor unit S2 is greater than or equal to a predetermined angular level,
massage chair.
9. The method of claim 8,
an arm fixing unit 410 installed at both ends of the seat unit 200 and having an arm insertion groove inside which a user's arm is inserted;
a shoulder fixing unit 120 positioned at a predetermined height toward the upper side from the seat unit 200 and installed at both side ends of the backrest unit 100;
Installed on at least one of the seat 200, the backrest 100, the leg fixing part 300, the foot fixing part 310, the arm fixing part 410, and the shoulder fixing part 120 an airbag unit (A) including a plurality of airbags;
a fluid injection unit 900 for injecting the airbag unit A fluid so that the airbag unit A is inflated; and
Further comprising; a valve unit (V) including a plurality of valves for opening or closing the fluid injection passage between the airbag unit (A) and the fluid injection unit (900);
massage chair.
11. The method of claim 10,
When the airbag massage operation is performed by the airbag unit (A),
The control unit 800 controls the fluid injection unit 900 and the valve so that the fluid injection time into the airbag unit A is longer than a first predetermined time and shorter than a second predetermined time longer than the first predetermined time. outputting a third control signal to control the operation of the negative (V),
massage chair.
12. The method of claim 11,
The control unit 800, when the number (m) of the currently opened valves among the plurality of valves is less than the number (n) of the plurality of valves provided in the massage chair, the number of currently opened valves (m) further calculating a third time shorter than the predetermined second time according to
A fourth control signal for controlling the operation of the fluid injection unit 900 and the valve unit V so that the fluid injection time into the airbag unit A is longer than the first predetermined time and shorter than the third time. output,
massage chair.
12. The method of claim 11,
A massage ball mounted on the inside of the backrest 100 and coupled to the massage ball 640 and the massage ball 640 capable of moving up and down along the backrest 100 and a massage frame in which one or more massage balls are installed. assembly 600; and
A third sensor unit (S3) that senses a shoulder height of a user seated in the massage chair according to a change in pressure applied to the massage ball assembly 600, and outputs an input shoulder height signal according to the sensed shoulder height further including;
When the level of the input shoulder height signal output from the third sensor unit S3 is smaller than a predetermined shoulder height level, the control unit 800 is controlled by the airbag unit A and the massage ball assembly 600 . Outputting a fifth control signal to stop the massage operation,
massage chair.
14. The method of claim 13,
A fourth sensor unit (S4) installed inside the seat unit 200, sensing the pressure applied to the seat unit 200 and outputting a second input pressure signal;
The control unit 800 outputs the fifth control signal when the level of the second input pressure signal output from the fourth sensor unit S4 is lower than a predetermined second pressure level,
massage chair.
Using the massage chair according to any one of claims 1 to 14,
massage method.
stored in a computer-readable recording medium to execute the method according to claim 15,
program.

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