JP4736670B2 - Exercise assistance device - Google Patents

Description

  The present invention relates to an exercise assisting device that imparts exercise by adding weight to a user's leg by swinging the seat while the user is seated on the seat.

As described above, while the user is seated on the seat portion, the seat portion is swung, so that the weight is changed and added to the leg portion of the user, and exercise is applied to the trunk and the lower limbs. An exercise assisting device as described above is proposed in Patent Document 1 by the present applicant. By using this exercise assisting device, even users with knee pain, such as diabetics, can exercise with muscle contraction of the thigh and improve lifestyle-related diseases by glucose metabolism due to the muscle contraction It has come to be useful for. In addition, for users with weak legs and legs, it is useful for increasing muscular strength.
JP 2005-58733 A

  However, the knee angle is important for efficient exercise, and as the angle deviates from the ideal angle of 140 °, the effect is reduced or an excessive load is applied. For example, even if the seat part on which the user is seated leans forward and the weight is applied to the leg as the leg is stretched larger than 140 °, the load on the thigh muscles is increased. Is not applied and the exercise effect is reduced.

  Therefore, the height of the seat portion has been adjusted so as to achieve the ideal knee angle, but in the past, the user adjusted or used the sensory value that seems to be suitable for the user. A leader or a leader makes adjustments using an angle ruler.

  Therefore, there is a problem that the adjustment is not properly performed or the adjustment is troublesome.

  An object of the present invention is to provide an exercise assisting device that can adjust the knee angle appropriately and easily.

  The exercise assisting device of the present invention allows the user to change the weight of the user's leg and add it to the user by swinging the seat while the user is wearing the waist on the seat. In the exercise assisting device for imparting movement, a displacement means capable of adjusting the height by raising and lowering the seat portion, a detecting means for detecting a load applied to the seat portion, and a seat portion on which the user has lowered. A control means for monitoring the detection result of the detection means while raising the seat portion to the displacement means in a state straddling the position, and stopping the rise when the detected load reaches a predetermined value; And a footrest that supports the leg portion so that the knee angle of the user becomes a predetermined angle with a high exercise effect in a state where the user puts the waist on the seat portion that has been stopped.

  According to the above configuration, the user can exercise the user by swinging the seat while the seat is seated on the seat so that the weight is changed and added to the leg of the user. In the exercise assisting device that gives the movement, the user's knee angle is 140 ° which is a predetermined angle with high exercise effect, so that the expected exercise effect can not be obtained unless the seat part height is matched, The height of the seat can be adjusted by moving the seat up and down by the displacing means. Then, the control means monitors the load applied to the seat portion by the detecting means while the seat means is lifted by the displacement means in a state where the control means stands on the seat portion lowered by the user. While doing. When the detected load reaches a predetermined value, the height of the seat portion at that time substantially corresponds to the inseam length of the user, and when the user puts the waist on the seat portion at that height, the leg portion Is held by a leg stand having a predetermined height of about 5 to 10 cm, so that the knee angle of the user can be supported at the 140 ° having a high exercise effect.

  Therefore, the knee angle at which effective exercise can be performed can be adjusted appropriately and easily.

  Further, the exercise assisting device of the present invention includes a base having a base that serves as a ground contact surface of the user's leg, a standing base on the base, and the seat and the base at a predetermined interval. A support column that holds and expands and contracts to become the displacement unit, and a swing unit that is attached to an upper part of the support column, has the seat part attached to the upper part, and swings the seat part. To do.

  According to the above-described configuration, the weight is changed and added to the leg portion of the user by swinging the seat portion while the above-mentioned user puts the waist portion on the seat portion. Compared to a configuration in which the seat portion is attached to the tip of the pole and the base end side of the pole is swung, the stress applied to each mechanism component is small and small in size. Parts can be adopted, and the height of the seat portion can be easily adjusted, which is a suitable mechanism for the present invention.

  Furthermore, in the exercise assisting device according to the present invention, the swinging means is realized as a drive device provided between the upper portion of the support column and the seat portion, and is provided in a front-rear direction with respect to a pedestal provided on the upper portion of the support column. A swing mechanism that is swingable about an axis and generates a swing in the front-rear direction, a front link and a rear link supported so as to be swingable in the front-rear direction on the swing mechanism, and the front link and the rear link It is provided between the links, and is configured to include a pedestal that supports the seat.

  According to said structure, the said rocking | fluctuation means which generate | occur | produces the rocking | fluctuation of the front-back direction and the left-right direction is realizable with the drive device which consists of said structure.

  In the exercise assisting device of the present invention, the swing mechanism can swing in the left-right direction by a pair of front and rear shaft support plates standing on the pedestal and a pin extending in the front-rear direction on the shaft support plate. A front plate and a rear plate supported on the front plate and a side plate fixed to the front plate and the rear plate from both the left and right sides, a motor vertically installed in the housing, and a pivot supported on the both side plates The first and second shafts driven by the motor, the eccentric cranks attached to both ends of the first shaft at an angle in phase with each other, and the arms having one end attached to the eccentric crank A link, an eccentric rod provided between the pedestal and a pin that is eccentrically provided on at least one end of the second shaft, and the front link is moved back and forth on the lower side of the front plate. Rocking The other end of the arm link is supported and can be swung in the front-rear direction, and the rocking mechanism is swung in the left-right direction by driving the eccentric rod. .

  According to the above configuration, when the motor is driven, the pedestal that supports the seat portion by the first shaft, the eccentric crank, the arm link, and the front link swings in the front-rear direction, and the seat is supported by the second shaft and the eccentric rod. The pedestal that supports the part swings in the left-right direction. Thus, the pedestal that supports the seat can be swung by the swing mechanism.

  As described above, the exercise assisting device of the present invention is configured such that the weight of the user's leg is changed and added by swinging the seat while the user is seated on the seat. In addition, in the exercise assisting device that imparts exercise to the user, if the seat portion does not have the correct height so that the knee angle of the user is 140 °, which is a predetermined angle with high exercise effect, the expected exercise effect Therefore, the height can be adjusted by moving the seat up and down by the displacing means, and the control means straddles the seat part where the user descends in a standing position. In this state, while the sheet portion is raised by the displacement means, the load applied to the sheet portion is monitored by the detection means, and when the detected load becomes a predetermined value, the height of the sheet portion at that time is used. It corresponds to the inseam length of the elderly When the user puts his / her waist on the seat at that height, the leg is held by a predetermined height of about 5 to 10 cm, so that the knee angle of the user can be reduced. It can be supported at the high 140 °.

  Therefore, the knee angle at which effective exercise can be performed can be adjusted appropriately and easily.

  FIG. 1 is an exploded perspective view of an exercise assisting apparatus 1 according to an embodiment of the present invention, and FIG. 2A is a schematic cross-sectional view for explaining a use state of the exercise assisting apparatus 1. FIG. 3 is a top view of FIG. This exercise assisting apparatus 1 is roughly composed of a driving unit 5 that swings the seat unit 4 on a seat unit 4 on which a user 2 wears a waist 3, a driving unit 5 and a seat unit 4 mounted thereon. A leg portion 6 that can be supported to change the height of the seat portion 4, a grounding surface of the leg portion 7 of the user 2, left and right footrests 8 that support the weight, and a handle 10 that supports the upper body 9; The operation panel 11, the support column 12 that supports the handle 10 and the operation panel 11, and the base 13 to which the leg portion 6, the leg base 8, and the support pillar 12 are attached are configured. Then, when the driving device 5 swings the seat portion 4, the weight is changed and added to the leg portion 7 of the user 2, and exercise is given to the user 2.

  The seat portion 4 includes a receiving portion 4a that receives the buttocks of the user 2, a left and right front cutout portion 4b that is formed so that the thigh is removed, and a projection portion 4c that receives the waist from the back. Composed. The notch 4b is inclined by 140 ° (50 ° forward tilt with respect to the horizontal plane) from the vertical line so that the knee angle θ of the user 2 is 140 °, which is a predetermined angle with high movement effect. Is formed. The receiving portion 4a is provided with a load sensor 193 for detecting that the user 2 is seated.

  The driving device 5 is mounted on an elevating base 124, and the elevating base 124 is configured to be slidable within the column 125 of the leg portion 6, and by sliding, the floor surface of the seat portion 4 and The height from the leg base 8 can be changed, and the column 125 is inclined rearward, so that the horizontal distance from the leg base 8 also changes. Therefore, a lower end 127 a of an elevating mechanism 127 is attached to the base 13, and an upper end 127 b is attached from the back surface of the base 124 a of the elevating base 124, and guide rollers 124 b provided on the outer peripheral surface of the elevating base 124. Travels on the guide rail 125a formed in the support column 125, and the lifting mechanism 127 extends to increase the height of the seat portion 4 from the floor surface and the footrest 8 and from the footrest 8. The horizontal distance becomes larger, and the height becomes lower and the horizontal distance becomes smaller by reducing the horizontal distance.

  The elevating mechanism 127 includes a pair of pillar pieces 127c, an operating piece 127d accommodated therebetween, a gear box 127e attached to the upper part of the pillar piece 127c, a motor 127f for driving the gear box 127e, And a height detection unit 127g. A lower end 127a of the column piece 127c is attached to the base 13, and the gear box 127e is attached to the upper end. The operating piece 127d is composed of a ball screw or the like, and its upper end 127b is attached to a mounting piece 124x (see FIG. 5 to be described later) of a base 124a of the elevating base 124, and a lower part is inside the gear box 127e. The ball screw engages with an internal screw formed on the inner peripheral surface of a gear (not shown) in the gear box 127e, and the gear is driven by a worm gear fixed to the output shaft of the motor 127f. Thus, the operating piece 127d extends / shrinks from between the column pieces 127c, and the seat portion 4 can be raised and lowered.

  The height detection unit 127g detects the height of the sheet portion 4 by reading the displacement of the slit plate 127i connected to the operation piece 127d by the connection piece 127h with the sensor 127j.

  An elevating cover 128 is attached to the pedestal 124a of the elevating base 124 so that the elevating base 124 is not exposed from the support column 125 even when the elevating mechanism 127 is extended. By attaching the mechanism cover 129, the drive device 5 is protected from being exposed. Furthermore, the main body side circuit board 110 is mounted on the pedestal 124 a of the elevating base 124, and a heavy power transformer 132 and the like are housed on the base 13 in the support 125.

  FIG. 4 is an exploded perspective view showing a detailed configuration of the driving device 5, and FIG. 5 is a side view of the driving device 5 in an assembled state. In FIG. 5, some components are omitted for easy understanding. In this drive device 5, the pedestal 124 a of the elevating base 124 is tilted rearward but does not move except for displacement by the elevating mechanism 127, and becomes a swinging base.

  Referring also to FIG. 1, a pair of front and rear shaft support plates 131 and 132 are erected on the pedestal 124a, and pins 133 and 134 are inserted into the bearings 131a and 132a of the shaft support plates 131 and 132, respectively. The swing mechanism 135 can swing in the left-right direction indicated by the reference symbol N, and further, a pedestal 140 on which the seat portion 4 is mounted via a front link 136 and a rear link 137 supported by the swing mechanism 135. Is swingable in the front-rear direction indicated by reference symbol X. The drive unit 138 is housed in a space surrounded by the pedestal 124 a, the front link 136, the pedestal 140, and the rear link 137.

  First, the front plate 141 is supported on the bearing 131a of the front shaft support plate 131 by a pin 133 so as to be swingable in the left-right direction. Similarly, the bearing 132a of the rear shaft support plate 132 is supported by the pin 134 on the rear side. The plate 142 is supported so as to be swingable in the left-right direction. Side plates 143 and 144 are fixed to these plates 141 and 142 by screws 145 and 146 from the left and right sides. In this way, a housing of the swing mechanism 135 serving as a movable frame is configured.

  A motor 148 is fixed to the side plates 143 and 144 by screws 147 with screws. The motor 148 is vertically installed in the swing mechanism 135, and the protruding direction of the output rotating shaft is upward. The gear 149 fixed to the output rotation shaft of the motor 148 meshes with the first gear 151 provided on the first shaft 150, and the second gear 152 provided on the first shaft 150 is connected to the second shaft 153. Is engaged with a gear 154 provided in The shafts 150 and 153 are pivotally supported by bearings 143a and 144a; 143b and 144b of the side plates 143 and 144, respectively.

  Both end portions of the first shaft 150 are formed in a prismatic shape, and eccentric cranks 155 and 156 are attached at angles that are in phase with each other. One ends of arm links 157 and 158 are attached to the eccentric cranks 155 and 156, respectively. The other ends of the arm links 157 and 158 are connected to shaft pins 159 and 160 provided on the left and right on the upper side of the front link 136, respectively. On the other hand, on the lower side of the front link 136, the shaft pins 161 and 162 provided on the left and right are respectively attached to bearings 143c and 144c provided on the lower front side of the side plates 143 and 144, respectively. Also, the bearings 163 and 164 provided on the left and right on the upper side of the front link 136 are attached to the shafts 167 and bearings 165 and 166 provided on the left and right on the front end side of the base 140. Therefore, when the motor 148 rotates, the rotational force of the first shaft 150 is converted into linear reciprocating motion by the eccentric cranks 155 and 156 and the arm links 157 and 158, and the pedestal 140 swings in the front-rear direction indicated by the reference symbol X. It becomes possible.

  On the other hand, a pin 153a is erected eccentrically at one end of the second shaft 153, and one end of an eccentric rod 168 is connected to the pin 153a. The other end of the eccentric rod 168 is swingably connected to a connection fitting 169 attached to the pedestal 124a. The pin 153a and the eccentric rod 168 are provided on the left side of the swing mechanism 135 in FIGS. 4 and 5, but may be provided on the right side, or the pins 153a may be mutually connected at both ends of the second shaft 153. It may be provided at a position where the phase differs by 180 ° and may be provided on both sides of the swing mechanism 135. Therefore, when the motor 148 rotates, the rotational force of the second shaft 153 is converted into a linear reciprocating motion by the pin 153a and the eccentric rod 168, and the swinging mechanism 135 on which the pedestal 140 is mounted moves in the left-right direction indicated by reference numeral N. Swing.

  The rear link 137 supports the rear portion of the pedestal 140 and the lower rear end side of the side plates 143 and 144 so that the pedestal 140 can swing in the front-rear direction indicated by the reference symbol X. For this reason, a U-shaped connecting piece 170 is fixed to the rear rear surface of the pedestal 140, and bearings 171 a and 172 a provided on the hanging portions 171 and 172 on both sides of the connecting piece 170 and a rear link 137. The bearings 175a and 176a provided on the rising portions 175 and 176 on both sides of the U-shaped connecting piece 174 attached to the upper end of the shaft 173 are attached by pins 177. Further, bearings 143d and 144d are provided on the lower rear end sides of the side plates 143 and 144, respectively, and a pair of left and right mounting pieces of an inverted U-shaped connecting piece 180 attached to the lower end of the shaft 173. The bearings 181 a and 182 a provided at the lower ends of 181 and 182 are attached to the pins 183.

  By setting the gear ratio of the gears 152 and 154 and the phase difference between the eccentric cranks 155 and 156 and the pin 153a with the swing mechanism 135 configured as described above, the seat portion 4 is provided with a V-shape and a W-shape. It can be swung along a trajectory such as a horizontal figure. When the swinging mechanism 135 swings left and right forward and downward, the seat portion 4 pushes the user's 2 hips and waists forward with the receiving portion 4a without slipping by the protruding portion 4c and the notch portion 4b. Since it becomes difficult for the thigh to apply a load to the receiving portion 4 a, the user 2 is stretched by the leg base 8. Thus, the user can be exercised.

  FIG. 6 is a block diagram showing an electrical configuration of the exercise assisting apparatus 1. In response to an operation from the operation circuit board 121 provided on the operation panel 11, the main body side circuit board 110 includes a swinging motor 148 made of a DC brushless motor and a lifting motor 127f made of a DC motor. To drive. The height of the seat portion 4 by the elevating motor 127f is detected by a sensor 127j, and the detection result is input to the main body side circuit board 110. Further, the detection result by the load sensor 193 is also inputted to the main body side circuit board 110.

  FIG. 7 is a view for explaining an adjustment operation of the knee angle θ in the exercise assisting apparatus 1 configured as described above, and FIG. 8 is a configuration diagram of a portion related to the adjustment operation. The same components as those described above are denoted by the same reference numerals. In such exercise assisting apparatus 1, if the knee angle θ of the user 2 is not 140 °, no load is applied to the muscles of the thigh as described above, and the exercise effect is reduced. Therefore, in the present embodiment, by adjusting the height of the seat portion 4, θ = 140 ° can be maintained regardless of the physique of the user 2.

  The adjustment is started when the user 2 gives an instruction to start the adjustment operation from the operation circuit board 121, and the main body side circuit board 110 includes a microcomputer and its peripheral circuits. 111 is performed by driving the elevating motor 127f of the leg 6 serving as a displacement means while monitoring the detection results of the sensor 127j and the load sensor 193.

  Specifically, as shown in FIG. 7A, the control circuit 111 starts the adjustment operation in a state where the user 2 straddles the seat portion 4 that has been lowered, and drives the motor 127f. The load applied to the seat portion 4 is monitored by the load sensor 193 while the seat portion 4 is raised. When the detected load reaches a predetermined value, the height of the seat portion at that time substantially corresponds to the crotch length of the user 2 as shown in FIG. Stop and finish the height adjustment.

  On the other hand, in this state, as shown in FIG. 7C, the user 2 puts his / her waist on the seat portion 4 and the leg portion 7 is set at an appropriate position on the leg base 8 so that the shin 7a is substantially vertical. If the height H1 of the leg base 8 is set to an appropriate height of about 5 to 10 cm, the knee angle θ of the user 2 can be supported at the 140 °, which has a high exercise effect.

  Here, FIG. 2A is an example of the case of the user 2 having a short height, and FIG. 2B shows a similar view of the user 2 'having a high height. By adjusting the height of the seat 4, the knee angle θ of the legs 7, 7 ′ is 140 ° so that effective movement can be performed for any user 2, 2 ′. be able to.

  In this way, the control circuit 111 provided on the main body side circuit board 110 drives the motor 127f to sweep the height of the seat portion 4 to measure the crotch length of the user 2 and By particularly setting the height H1, the knee angle at which effective exercise can be performed can be adjusted appropriately and easily.

  In addition, the exercise assisting device 1 of the present invention is equipped with a driving device 5 that generates swinging on a telescopic leg portion 6 erected on a base 13, and a seat portion 4 is mounted on the driving device 5. Yes. On the other hand, as shown in FIG. 9, in the exercise assisting device 51 of Patent Document 1, the seat portion 53 is attached to the tip of the pole 52, and the base end side of the pole 52 is swung by the driving device 54. A large stress is applied to the base end side.

  Therefore, the exercise assisting apparatus 1 according to the present invention can be driven with small power and power saving, and the height adjustment of the seat portion 4 is easier.

It is a disassembled perspective view of the exercise assistance apparatus which concerns on one Embodiment of this invention. It is a typical cross-sectional view for demonstrating the use condition of the said exercise assistance apparatus. FIG. 3 is a top view of FIG. 2. FIG. 2 is an exploded perspective view showing a detailed configuration of a drive device that generates rocking in the exercise assistance device. It is a side view in the state where the drive unit was assembled. It is a block diagram which shows the electric constitution of the said exercise assistance apparatus. It is a figure for demonstrating the adjustment operation | movement of the knee angle in the exercise assistance apparatus comprised as mentioned above. It is a block diagram of the part in connection with adjustment operation | movement of FIG. It is a front view which shows the structure of the exercise assistance apparatus of a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Exercise assistance apparatus 2, 2 'User 3 Lumbar part 4 Seat part 4a Receiving part 4b Notch part 4c Protrusion part 5 Drive device 6 Leg part 7 Leg part 7a Shin 8 Leg base 9 Upper body 10 Handle 11 Operation panel 12 Strut 13 Base Base 15 Leg 16 Leg rail 110 Main body side circuit board 111 Control circuit 121 Operation circuit board 127f Elevating motor 127j Sensor 124 Elevating base 124a Pedestal 125 Post 126 Leg base 127 Elevating mechanism 127f Motor 131, 132 Shaft support plate 135 Shaking Moving mechanism 136 Front link 137 Rear link 138 Drive unit 140 Base 141 Front plate 142 Rear plate 143, 144 Side plate 148 Motor 150 First shaft 153 Second shaft 155, 156 Eccentric crank 157, 158 Arm link 168 Eccentric rod 193 Load sensor

Claims (4)

In an exercise assisting device that imparts exercise to a user by swinging the seat while the seat is seated on the seat so that the weight is changed and added to the leg of the user ,
Displacement means capable of adjusting the height by raising and lowering the seat part;
Detecting means for detecting a load applied to the seat portion;
While the user straddles the lowered seat part in a standing position, the detection means monitors the detection result while raising the seat part to the displacement means, and the detected load becomes a predetermined value. And a control means for stopping the ascent,
The exercise support includes a leg base that supports the leg portion so that the knee angle of the user becomes a predetermined angle having a high exercise effect in a state in which the user puts the waist on the seat portion that has stopped. apparatus. A base having a pedestal that serves as a ground contact surface of the user's leg;
Standing on the base, holding the seat portion and the leg base at a predetermined interval, and extending and contracting to become the displacement means,
The exercise assisting device according to claim 1, further comprising: swing means attached to an upper portion of the support column, the seat portion being attached to the upper portion, and swinging means for swinging the seat portion. The swinging means is realized as a drive device provided between the upper part of the support column and the seat part,
A swing mechanism that is swingable about an axis in the front-rear direction with respect to a pedestal provided at an upper portion of the support column, and generates a swing in the front-rear direction;
A front link and a rear link supported so as to be swingable in the front-rear direction on the swing mechanism;
The exercise assisting device according to claim 2, further comprising a pedestal that is provided between the front link and the rear link and supports the seat. The swing mechanism is
A pair of front and rear shaft support plates standing on the pedestal;
A housing comprising a front plate and a rear plate supported on the shaft support plate by a pin extending in the front-rear direction so as to be swingable in the left-right direction, and side plates fixed to the front plate and the rear plate from the left and right sides ,
A motor placed vertically in the housing;
First and second shafts pivotally supported by the side plates and driven by the motor;
Eccentric cranks that are respectively attached to both ends of the first shaft at angles that are in phase with each other;
An arm link having one end attached to the eccentric crank;
An eccentric rod provided between the pedestal and a pin that is eccentrically provided on at least one end of the second shaft;
The front link is supported on the lower side of the front plate so as to be swingable back and forth, and is attached to the other end of the arm link so as to be swingable in the front-rear direction, and driven by the eccentric rod The exercise assisting device according to claim 3, wherein the swing mechanism swings in the left-right direction.

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