JP2011010695A - Massage chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To control the reclining speed of bringing down and raising to be fixed regardless of the difference of the body weight of a person to be treated, in a massage machine whose seat part and backrest part for supporting the hip and back of the person to be treated are reclinable by the expansion and contraction of an air bag in a massage chair.SOLUTION: The massage machine is provided with a control means 8 capable of controlling the bringing-down speed and/or raising speed of reclining by determining the supply amount of air per unit time to the air bag 40 and/or the discharge amount of air per unit time from the air bag corresponding to a measurement value from a measurement sensor 7 which measures a pressure received when the person to be treated gets on the massage machine.

Description

  In the massage machine in which the seat and backrest that support the user's buttocks and back can be reclined by inflating and deflating the airbag, the reclining speed of tilting and / or raising regardless of the weight of the user The present invention relates to a chair type massage machine that can be controlled to a certain level.

  This type of chair-type massage machine includes a massager that performs massage by expanding and contracting an airbag, that is, a machine that includes an air pump. Therefore, the applicant previously used this air pump to inflate and retract a reclining airbag separate from the massage airbag and perform “reclining collapse / raising” of the seat and spine. (Japanese Patent Application No. 2009-69268).

The massage machine does not require a motor for operating the reclining mechanism, and has the effect of simplifying the mechanism. On the other hand, depending on the individual difference in the body weight of the user who gets into the massage machine, the reclining tilting and raising speed may be change. This is a phenomenon that naturally occurs due to the difference in the load due to the difference in the weight of the user acting on the airbag if the control is to simply supply air to the reclining airbag or to discharge the air.
This invention provides the chair type massage machine which can solve the said problem by devising control of the air supply to the airbag for reclining, and control of air discharge | emission.

The present invention focuses on a tilting fulcrum (20) located on the rear side of the seat (2) and the backrest (4) for supporting the user's buttocks and back on the base (1). An auxiliary leg (51) for tilting the seat is provided below the seat (2) in front of the tilting fulcrum (20) so that it can be raised and lowered, and a reclining airbag is mounted on the auxiliary leg. Chair-type massage machine provided with reclining means (5) capable of changing the inclination angle of the seat (2) and the backrest (4) by raising and lowering the auxiliary leg (51) by expansion and contraction of (50) In
The chair type massage machine supplies air per unit time to the reclining airbag (50) according to the measured value from the measurement sensor (7) that measures the load that the user receives by getting into the massage machine. Control means (8) is provided which can determine the amount and / or the amount of air discharged from the airbag per unit time and control and adjust the tilting speed and / or raising speed of the reclining.

  The control means (8) sends air per unit time to the reclining airbag (50) according to the measurement value from the measurement sensor (7) that measures the pressure that the user receives when getting into the massage machine. The supply amount and / or the air discharge amount per unit time from the airbag are determined. Therefore, the reclining tilting speed and / or raising speed can be controlled to be constant according to the weight of the user.

It is a perspective view of a chair type massage machine. It is a side view of the reclining raising state same as the above. It is a side view of a reclining fall state same as the above. It is a flowchart of control. It is a flowchart of control of other examples. FIG. 4A shows the relationship between the ON / OFF of the air massage solenoid valve and the massage, and FIG. b shows the relationship between the ON / OFF of the reclining solenoid valve and the reclining state. It is a flowchart of the operation | movement of reclining at the time of massage use. It is a flowchart of the operation | movement of the massage at the time of reclining use. It is a block diagram of a control means. It is a side view of the other Example of the chair type massage machine. It is a side view of a reclining fall state same as the above.

As shown in FIG. 1 to FIG. 3, the massage machine has a backrest (4) extending obliquely rearward and upward from the rear end of the seat (2) on which the user's buttocks rests, and at the front end of the seat (2). The knee-mounting portion (28) extends obliquely forward and downward, and has armrest portions (3) and (3) on the left and right sides of the seat portion (2).
The massage machine includes a reclining means (5) in which the seat (2) and the backrest (4) can be reclined together. In the reclining start state (reclining reset state) shown in FIG. 2, the seat (2) It is substantially parallel to the floor surface F.
In the reclining tilt state shown in FIG. 3, the seat part (2) is inclined so that the front part is lifted higher than the rear part. This inclination angle can be arbitrarily adjusted by the reclining means (5).

As shown in FIG. 1, massage means (6) (61) (62) (63) are arranged on the inner surface side of the seat (2), the backrest (4) and the armrest (3). The massaging means (6) (61) (62) (63) is for inflating and contracting the airbag (6a) (61a) (62a) (63a) to pressurize the affected area.
The massage means (6), (61), (62) and (63) are not limited to the airbag type, and various forms such as mechanically swinging the kneading balls and applying pressure to the affected area by kneading and hitting. Can be implemented.

  The seat portion (2) is attached to the base portion (1) so as to be reclining around a tilting fulcrum (20) located on the rear side.

The base part (1) is provided with an air pump (12) for inflating the massage airbag (6a) (61a) (62a) (63a) and a reclining airbag (50) described later.
Two parallel rails (11) and (11) project forward from the base portion (1) toward the front.
The rail (11) is formed in a concave groove shape, and the front end of the groove is closed to serve as a stopper (13).

Brackets (23) are provided on both sides of the front part of the lower surface of the seat (2), and the upper ends of the auxiliary legs (51) and (51) are pivotally attached to both brackets (23) and the lower ends are attached to be pivotable back and forth. The auxiliary legs (51) and (51) are connected by the receiving plate (22).
Casters (26) and (26) are attached to the lower ends of the auxiliary legs (51) and (51), and are fitted to the groove-like rails (11) and (11) in a rollable manner.

The reclining means (5) for reclining the seat (2) and the backrest (4) by raising and lowering (turning) the auxiliary leg (51) between the seat (2) and the rail (11) is provided. To do.
The reclining means (5) of the embodiment is an airbag (50), and the reclining airbag (50) includes a spacer (24) provided on the lower surface of the seat (2) and the auxiliary leg (51) ( 51) is interposed between the receiving plate (22) provided across the board.

As shown in FIG. 2, in the reset state of the massage machine, that is, in the state where the reclining airbag (50) is contracted, the receiving surface (25) of the spacer (24) with respect to the airbag (50) has an auxiliary leg (51 ), That is, substantially parallel to the backing plate (22).
The airbag (50) comprises a plurality of bag bodies (52) (52) communicating with each other, and each bag body (52) (52) is a frame metal (rotationally supported by the bracket (23) ( 53) is supported by (53), and is stably expanded and contracted without being displaced between the spacer (24) and the receiving plate (22).

In the case of the embodiment, when the reclining airbag (50) is inflated, "reclining collapse" occurs, and when the airbag (50) contracts, "reclining occurs".
The present invention is characterized in that the reclining speed can be made substantially constant by the control means (8) regardless of the difference in weight of the user.
The control means (8) supplies air per unit time to the reclining airbag (50) according to the measurement value of the measurement sensor (7) that measures the load that the user receives by getting into the massage machine. The amount and / or the amount of air discharged per unit time from the air bag (50) is determined to control the reclining rate and / or raising speed.

The control means (8) shown in FIG. 9 is accommodated in a suitable place such as in the base portion (1).
The control means (8) includes a microcomputer (81), a massage solenoid valve drive circuit (82) connected to the microcomputer (81), a reclining solenoid valve drive circuit (83), an air pump drive circuit (84), A relay circuit (87) for turning on and off the remote control operation part (85), the measurement sensor (7) and the massage electromagnetic valve drive circuit (82) is connected.
The massage solenoid valve drive circuit (82) and the air reclining solenoid valve drive circuit (83) are separate power sources.

The measurement sensor (7) is arranged on the seat (2), measures a load applied to the measurement sensor (7) (the weight of the user), and transmits the measurement value to the microcomputer (81).
One of the various roles of the microcomputer (81) is that, according to the measured value, the sending speed of the air for the reclining tilting / raising according to the load value for the measurement sensor (7) stored in advance, Determine the discharge speed (both flow rate per unit time), send commands to the air pump drive circuit (84) and air reclining solenoid valve drive circuit (83), and output the air pump (12) and recline The opening and closing of the solenoid valve E and the reclining raising solenoid valve F is controlled.

Electromagnetic valves A, B, C, and D are connected to the electromagnetic valve driving circuit for massage (82), and the massage airbags (6a), (61a), and (62a) are connected to the electromagnetic valves A, B, C, and D, respectively. ) (63a) is connected.
The airbag (6a) (61a) (62a) (63a) can be individually inflated and contracted by the action of the massage solenoid valve drive circuit (82).
As shown in FIG. 6A, the massage airbags (6a), (61a), (62a), and (63a) start the massage when the corresponding electromagnetic valves A to D are ON, and stop the massage when they are OFF.

The reclining solenoid valve drive circuit (83) is connected to a reclining tilting solenoid valve E and a reclining raising solenoid valve F. Both solenoid valves E and D pass through the flow path of the reclining airbag (50). Open and close.
As shown in FIG. 6B, when the reclining tilting electromagnetic valve E is ON and the reclining raising solenoid valve F is OFF, air is supplied to the reclining airbag (50) and the reclining collapses.
When both the reclining tilting solenoid valve E and the reclining raising solenoid valve F are OFF, the air pressure in the reclining airbag (50) is maintained, and the seat (2) and backrest (4 ) Angle is maintained.
When the reclining tilting solenoid valve E is OFF and the reclining raising solenoid valve F is ON, air is discharged from the airbag (50) and the reclining is started.

  When the reclining solenoid valve drive circuit (83) receives the drive circuit ON signal and the air discharge amount signal from the microcomputer (81), the reclining solenoid valve F repeatedly opens and closes, and the reclining solenoid valve drive circuit (83) opens and closes per unit time. The air discharge amount can be controlled so that the speed becomes substantially constant regardless of the value of the load on the measurement sensor (7).

The air pump drive circuit (84) controls ON / OFF of the air pump (12) and the output of the air pump (12).
The relay drive circuit (87) turns on the emergency stop button (88) provided at an appropriate location such as the remote control operation section (85), and the relay (89) of the relay drive circuit (87) is turned off, and the massage is performed. The power supply of the solenoid valve drive circuit (82) is turned off (shut off).

Next, based on the flowchart of FIG. 4, control of air supply and discharge to the reclining airbag (50) for reclining tilting / raising will be described.
When the main power is turned on in the reset state of the microcomputer (81) (the reclining tilting solenoid valve E and the reclining raising solenoid valve F are both closed), and the user sits on the seat (2), measurement is performed. The sensor (7) detects the load (the weight of the person to be treated) applied to the measurement sensor (7), and determines the resetting / raising air feed speed and air discharge speed according to the detected value (S1). .
When the reclining is turned on (S2) and “Decrease reclining” is selected (S3), the reclining tilting solenoid valve E opens, and at the same time, the microcomputer (81) sends an air pump (12) ON command to the air pump drive circuit (84), A command for controlling the output of the air pump (12) is sent so as to correspond to the air feed speed of the reclining tilt determined in (S1) (S4). Specifically, the greater the detected value of the measurement sensor (7) (the heavier the patient's weight, the greater the output of the air pump (12). As a result, the reclining airbag (50) is set at an appropriate speed. Air is supplied, and the seat (2) and the backrest (4) fall down at a constant speed regardless of the weight of the user due to the expansion of the airbag (50).
When the reclining tilt is stopped or the reclining tilt is completed (S5), the reclining tilting solenoid valve E is also closed and returned to between (S1) and (S2).

When “reclining start” is selected from the reclining ON (S2) (S6), the reclining start solenoid valve F is opened, and at the same time, the microcomputer (81) corresponds to the air discharge speed determined in S1. A control signal is sent to the reclining solenoid valve drive circuit (83) so that air is discharged from the reclining airbag (50) at a speed (S7).
The reclining raising solenoid valve F is repeatedly opened and closed in accordance with the air discharge speed determined in S1, and the air in the airbag (50) is discharged. Specifically, the larger the detection value of the measurement sensor (7) (the heavier the patient is), the shorter the time during which the reclining wake-up solenoid valve F is open. As a result, the seat (2) and the backrest (4) occur at a constant speed regardless of the weight of the user due to the shrinkage of the airbag (50).
When the reclining start is stopped in the middle or when the reclining start is completed (S5), the reclining start solenoid valve F also remains closed, and returns between (S1) and (S2).

  In the above description, the air feed speed in the case of “reclined tilt” is adjusted by controlling the output of the air pump (12), but the output of the air pump (12) is constant and the reclining tilting solenoid valve E opens and closes. When it repeats, it can also control by adjusting the opening time and the closing time. That is, as the detection value of the measurement sensor (7) is larger (the weight of the user is heavier), the time during which the solenoid valve E is opened is lengthened, so that the reclining declination speed is made almost constant regardless of the weight. Can do.

  The reclining speed control is performed by the measurement sensor (7) detecting the load when the user sits on the seat (2). The reclining speed control according to the flowchart of FIG. This is performed by measuring the internal pressure of the bag (50) and controlling the output of the air pump (12) according to the internal pressure. In this case, the measurement sensor (7) is a pressure gauge connected to a reclining airbag (50) or a flow path to the airbag (50).

As shown in FIG. 5, the main power supply is turned on in the reset state of the microcomputer (81) (both the reclining tilting solenoid valve E and the reclining raising solenoid valve F are closed), and the user receives the seat (2). Sit down and turn on the reclining (S1), select “Decrease reclining” (S2), the solenoid valve drive circuit for air reclining (83) opens the reclining solenoid valve E, and the air pump (12) operates. Then, supply of air to the airbag (50) is started. A measurement sensor (7) measures the pressure of the air flow path at the start of air supply. This indirectly measures the load by the user. The measured numerical value is sent to the microcomputer (81), the air supply speed for the reclining airbag (50) is determined according to the measured value, and the output of the air pump (12) is controlled to respond to the speed, and the air Drive the pump (12). Specifically, the output of the air pump (12) is increased as the pressure in the air flow path is higher (the weight of the user is heavier).
As a result, air is supplied to the reclining airbag (50) at an appropriate speed, and the seat portion (2) and the backrest portion (4) are not affected by the weight of the user due to the inflation of the airbag (50). It falls at a constant speed.
When the reclining tilt is stopped or the reclining tilt is completed (S4), the reclining tilting solenoid valve E is also closed, and the process returns to immediately before (S1).

When “reclining start” is selected from the reclining ON (S1) (S5), the reclining start solenoid valve F is opened and air is discharged from the reclining airbag (50). The internal pressure in the airbag (50) for a predetermined time from the start of air discharge is measured by the measurement sensor (7), and the measured value is transmitted to the microcomputer (81). The microcomputer determines an air discharge speed according to the measured value and sends a control signal to the reclining solenoid valve drive circuit (83) (S6).
The reclining raising solenoid valve F is repeatedly opened and closed in accordance with the air discharge speed determined in (S6) to discharge the air in the airbag (50). Specifically, the lower the internal pressure of the reclining airbag (50) for a certain period of time from the start of air discharge (the heavier the patient's weight), the shorter the opening time of the reclining solenoid valve F. . As a result, the seat (2) and the backrest (4) occur at a constant speed regardless of the weight of the user due to the shrinkage of the airbag (50).
When the reclining start is stopped halfway or when the reclining start is completed (S4), the reclining start solenoid valve F also remains in the closed state and returns to the state immediately before (S1).

  In the above embodiment, the speeds of both “reclining declination” and “reclining wake-up” are made constant regardless of the weight of the user, but one of the speeds is made constant. May be.

  In the embodiment, since the air massage and the air reclining are performed by the common air pump (12), the control means (8) is used when the air massage is used as shown in the flowcharts of FIGS. When the reclining is stopped and the air reclining is used, the massage solenoid valve drive circuit (82) and the air reclining solenoid valve drive circuit (83) are controlled so that the air massage is stopped.

  If you operate the air reclining while performing air massage, the air flow rate to the reclining airbag (50) will change, making it impossible to inflate the airbag (50) sufficiently. The flow rate of air to the airbags (6a), (61a), (62a), and (63a) for use also changes, resulting in a problem that the feeling of massage deteriorates. However, this problem can be solved by the above control.

If an abnormality occurs in the massage function, the user may be abnormally pinched by the airbag (6a) (61a) (62a) (63a), and the massage solenoid valve drive circuit (82) should be powered off. Must be shut off. When the massage solenoid valve drive circuit (82) and the reclining solenoid valve drive circuit (83) are a common power source, if the massage solenoid valve drive circuit (82) is turned off, the air reclining solenoid valve drive circuit (83) is also cut off, and the seat (2) and the backrest (4) remain in the same posture.
When the seat (2) and the backrest (4) are in a fallen state, it is difficult to get off the massage machine.

In the embodiment, the massage solenoid valve drive circuit (82) and the reclining solenoid valve drive circuit (83) are used as separate power sources, and the emergency stop button (88) is turned on, so that the relay drive circuit (87) works. Only the power source of the massage electromagnetic valve drive circuit (82) can be turned off (shut off).
Therefore, even if an abnormality occurs in the massage function and the power supply of the massage solenoid valve drive circuit (82) is turned off, the reclining solenoid valve drive circuit (83) can operate. Therefore, it is possible to cause the reclining and safely get off the massage machine.

10 and 11 show another embodiment in which the appearance of the massage machine is different.
The rail (11) was omitted from the massage machine. In addition, the inclination angle of the lower knee mounting portion (28) at the front portion of the seat portion (2) was made gentle and lengthened forward. In addition, the bracket (23) that pivotally supports the auxiliary leg (51) is further changed to the front side, and the auxiliary leg (51) is positioned below the lower knee mounting part (28) so that the auxiliary leg (51) and the lower knee can be placed under the knee. A reclining airbag (50) was deployed between the sections (28).
Since the position from the tilting fulcrum (20) of the seat portion (2) to the airbag (50) is farther than that in the above embodiment, the load on the inflation of the airbag (50) is reduced.

DESCRIPTION OF SYMBOLS 1 Base part 2 Seat part 4 Backrest part 5 Reclining means
50 Reclining airbag 6 Massage means
6a Airbag for tilting seat

Claims (7)

On the base part, the seat part and the spine supporting the user's buttocks and back are arranged so as to be reclining around the tilting fulcrum located on the rear side of the seat part, and below the seating part, from the tilting fulcrum Reclining that allows the auxiliary leg for tilting the seat part to be raised and lowered on the front side, and the auxiliary leg to be raised and lowered by the expansion and contraction of the airbag to change the tilt angle of the seat part and the spine part In a chair type massage machine with means,
In the massage machine, the amount of air supplied to the airbag per unit time and / or the unit from the airbag according to the measurement value from the measurement sensor that measures the pressure that the user receives by getting into the massage machine A chair type massage machine provided with a control means capable of determining and adjusting the tilting speed and / or raising speed of reclining by determining the amount of air discharged per hour.   When the airbag is inflated, the reclining is overturned, and when the airbag is contracted, the reclining is triggered, and the control means detects the weight of the user by the detection sensor provided on the seat. Accordingly, the chair-type massage according to claim 1, wherein, in the case of reclining, the output of a pump that supplies air to the airbag is controlled, and in the case of reclining, the speed of extracting air from the airbag is controlled. Machine.   When the airbag is inflated, the reclining is overturned, and when the airbag is shrunk, the reclining is started. Measure the air supply pressure when supplying air to the airbag for a certain period of time, and control the output of the air supply pump according to this measured value. The chair type massage machine according to claim 1, wherein the pressure is measured for a certain period of time, and the speed at which air is extracted from the airbag is controlled according to the measured value.   The chair type according to any one of claims 1 to 3, wherein the upper end portion of the auxiliary leg is pivotally supported by the seat portion on the front side of the tilting fulcrum of the seat portion, and the free end of the auxiliary leg is movable back and forth. Massage machine.   The chair type massage machine according to any one of claims 1 to 4, wherein the base portion includes a rail extending in the front-rear direction at a position below the seat portion, and the free end of the auxiliary leg is movable while being guided by the rail.   The chair type massage machine according to any one of claims 1 to 5, wherein a caster is arranged at a free end of the auxiliary leg.   The seat portion and / or the backrest portion is provided with an airbag as a treatment means, and the airbag and the airbag for tilting the seat portion are connected to a common air pump. The chair type massage machine described.

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