Core moving fitness chair

Abstract

The present invention relates to a core-moving health chair comprising: an outer frame where the structure of the chair is divided into a circumferential zone and a central zone; a central inner frame where the floor frame of the chair is divided into a circumferential zone and a central zone; a core-moving means which is attached to the floor frame of the chair and which moves the central inner frame upwards or downwards; and a core-driving means which drives the core-moving means and moves the core upwards or downwards. The present invention provides a core-moving health chair which can change the pressure at the portion being compressed under body weight when the chair is being sat upon. The core of the chair is assembled on the core-moving means, the position of the core of the chair is moved by means of the core-moving means, and the core-moving movement is driven by means of a motor. If the core-moving means is provided in the seating location of the chair, then a person sitting on the chair can experience a change in the pressure distribution on the buttocks. This feature allows the contact pressure of the chair to be adjusted to suit the requirements of the individual. Alternatively, air circulation in the buttock region can be adjusted. By changing the region where pressure is applied to the buttocks, the present invention can be used to promote health for example with sphincter-muscle exercise and Kegel exercise while seated on the chair.

1 . A core-moving health chair comprising:
 an outer sheet being one divided portion of an area of the chair upon which user's weight rests and thus to which pressure is applied;   an inner sheet disposed at the inside of the outer sheet and being another divided portion of the area of the chair upon which the user's weight rests and thus to which the pressure is applied;   an outer frame being a portion of a main frame to support the outer sheet;   an inner frame separated from the outer frame to support the inner sheet, and assembled with a core-driving unit so as to be movable; and   a driver attached to the outer frame and assembled with the inner frame by a coupling lug to move the inner sheet to the outside of the outer sheet through a first stroke and to move the inner sheet to the inside of the outer sheet through a second stroke.   
     
     
         2 . The core-moving health chair according to  claim 1 , wherein the chair having the area divided into the outer sheet and the inner sheet includes a sofa or a bed. 
     
     
         3 . The core-moving health chair according to  claim 1 , wherein the area of the chair upon which the user's weight rests and thus to which pressure is applied includes at least one of a seat area, a back area, and a foothold area of the chair. 
     
     
         4 . The core-moving health chair according to  claim 1 , wherein the driver to move the inner sheet to the outside of the outer sheet and to move the inner sheet to the inside of the outer sheet includes:
 a housing attached to the outer frame by a flange;   a slider supported by the housing so as to be vertically movable;   a slider rail allowing the slider to be supported by the housing such that the slider is vertically movable;   a housing inner space part to receive the rail and the slider;   a coupling lug to assemble the slider with the inner frame;   a reduction geared motor attached to the housing such that a driving shaft is placed in the housing inner space part;   a crank provided on the driving shaft of the geared motor; and   a crank rod to connect the crank and a lug of the slider with pins.   
     
     
         5 . The core-moving health chair according to  claim 1 , wherein the driver to move the inner sheet to the outside of the outer sheet and to move the inner sheet to the inside of the outer sheet includes:
 a housing attached to the outer frame by a flange;   a slider supported by the housing so as to be vertically movable;   a slider rail allowing the slider to be supported by the housing such that the slider is vertically movable;   a housing inner space part to receive the slider rail and the slider;   a coupling lug to assemble the slider with the inner frame;   a reduction geared motor attached to the housing such that a driving shaft is placed in the housing inner space part;   a crank provided on the driving shaft of the geared motor;   a cam hole formed through the slider and elongated perpendicularly to the moving direction of the slider; and   a cam pin installed on the crank to revolve on the driving shaft and fitted into the cam hole to move the slider vertically along the rail.   
     
     
         6 . The core-moving health chair according to  claim 4 , wherein a position detection unit is installed on the driving shaft of the geared motor to program positional states of ends of the crank. 
     
     
         7 . The core-moving health chair according to  claim 6 , wherein the position detection unit includes a moving pin attached to the driving shaft, and two microswitches disposed around the driving shaft of the motor at a straight angle so as to contact the moving pin to perform a switching operation. 
     
     
         8 . The core-moving health chair according to  claim 4 , wherein the driver generating the first stroke and the second stroke, along which the inner sheet moves, continuously rotates the motor to repeat the first stroke and the second stroke, and a repetition period of the first stroke and the second stroke is no more than 600 times per minute. 
     
     
         9 . The core-moving health chair according to  claim 1 , wherein the driver to generate the first stroke and the second stroke, along which the inner sheet moves, includes:
 a lifting supporter attached to the outer frame;   a core lifting shaft supported by the lifting supporter so as to be vertically movable;   a rack gear installed on the lifting shaft in the moving direction of the lifting shaft;   a worm screw to vertically move the rack gear according to a rotating direction thereof;   a driving shaft connecting the worm screw to a motor;   the motor to drive the worm screw in a first direction or a second direction through the driving shaft; and   microswitches installed at upper and lower end points of a moving pin, attached to the rack gear to indicate a raised position or a lowered position of the rack gear, to program a moving position of the rack gear.   
     
     
         10 . The core-moving health chair according to  claim 9 , wherein the driver driving the inner sheet through the first stroke and the second stroke includes an inner sheet fixing unit, and the inner sheet fixing unit is an assembly of the rack gear and the worm screw. 
     
     
         11 . The core-moving health chair according to  claim 9 , wherein a controller of the driver driving the inner sheet through the first stroke and the second stroke includes:
 a driving switch on a control panel to transmit a drive start signal to a micom programmed for control;   a motor driver to supply current to the motor of the driver so as to drive the inner sheet through the first stroke according to a driving control signal;   an upper end point microswitch installed at the upper end point of the moving pin along the first stroke to provide positional data to the micom; and   a lower end point microswitch installed at the lower end point of the moving pin along the second stroke to provide position data to the micom.   
     
     
         12 . The core-moving health chair according to  claim 11 , wherein the micom of the controller is programmed to perform:
 Step  0000  of initializing a control program when power is supplied to the micom, and performing Step  0001  when the micom obtains a switch-on signal of the driving switch;   Step  0001  of controlling the motor driver such that current to drive the motor in the first direction is supplied to the motor, monitoring the upper microswitch and then performing Step   0002  when the micom obtains a switch-on signal of the upper microswitch, and monitoring the driving switch of the control panel and then performing Step  0005  when the micom obtains the switch-on signal of the driving switch;   Step  0002  of controlling the motor driver such that supply of the current to drive the motor is stopped, and monitoring the driving switch of the control panel and then performing Step  003  when the micom obtains the switch-on signal of the driving switch;   Step  0003  of controlling the motor driver such that current to drive the motor in the second direction is supplied to the motor, monitoring the upper microswitch and then performing Step  0004  when the micom obtains the switch-on signal of the upper microswitch, and monitoring the driving switch of the control panel and then performing Step  0006  when the micom obtains the switch-on signal of the driving switch;   Step  0004  of controlling the motor driver such that supply of the current to drive the motor is stopped, and monitoring the driving switch of the control panel and then being fed back to Step  0001  when the micom obtains the switch-on signal of the driving switch;   Step  0005  of controlling the motor driver such that supply of the current to drive the motor is stopped, and monitoring the driving switch of the control panel and then being fed back to Step  0001  when the micom obtains the switch-on signal of the driving switch; and   Step  0006  of controlling the motor driver such that supply of the current to drive the motor is stopped, a nd monitoring the driving switch of the control panel and thus being fed back to Step  0003  when the micom obtains the switch-on signal of the driving switch.   
     
     
         13 . A core-moving health chair comprising:
 an outer sheet being one divided portion of an area of the chair upon which user's weight rests and thus to which pressure is applied;   an inner sheet disposed at the inside of the outer sheet and being another divided portion of the area of the chair upon which the user's weight rests and thus to which the pressure is applied;   an outer frame being a portion of a main frame to support the outer sheet;   an inner frame separated from the outer frame to support the inner sheet, and assembled with a core-driving unit so as to be movable; and   an inner sheet moving unit to move the inner sheet to the outside of the outer sheet by hand and to move the inner sheet to the inside of the outer sheet by hand.   
     
     
         14 . The core-moving health chair according to  claim 13 , wherein the inner sheet moving unit includes a lifting nut installed on the outer frame, and a lifting screw installed on the inner frame and assembled with the lifting nut. 
     
     
         15 . The core-moving health chair according to  claim 5 , wherein a position detection unit is installed on the driving shaft of the geared motor to program positional states of ends of the crank. 
     
     
         16 . The core-moving health chair according to  claim 5 , wherein the driver generating the first stroke and the second stroke, along which the inner sheet moves, continuously rotates the motor to repeat the first stroke and the second stroke, and a repetition period of the first stroke and the second stroke is no more than 600 times per minute.