KR20230125898A - Footrest Exercise Device For Blood Circulation - Google Patents

Abstract

The present invention relates to a footrest exercise device for improving lower extremity blood circulation, which comprises two footrest members that do not overlap but form a shared foothold area through the rotation of two footrest axes located at the center, and rotate alternately in a preset angle range. More specifically, the present invention relates to a footrest exercise device for improving lower extremity blood circulation that can maximize blood circulation in the lower extremities by performing pumping exercises of the calf muscles, including ankle flexion and ankle extension, using electric drive force.

Description

Footrest exercise device for lower extremity blood circulation {Footrest Exercise Device For Blood Circulation}

The present invention relates to a footrest exercise device for improving lower extremity blood circulation. More specifically, the present invention is a footrest exercise device for blood circulation of the lower extremities capable of maximizing the blood circulation of the lower extremities by performing the pump movement of the calf muscles with electric driving force, minimizing waste of space in the vicinity of the footrest, and minimizing the volume and weight. it's about

Unlike arteries, veins do not have the driving pressure of heartbeats, and especially the flow of venous blood in the legs goes against gravity from the soles of the feet to the heart. Such venous blood returns to the heart by an external force such as respiration or muscle contraction. There are valves in the vein walls that open to allow blood to flow only to one side of the heart and close when it flows backward, preventing the back flow of blood. is playing a role

When these valves fail or function is weakened, venous blood containing waste products and carbon dioxide cannot go up to the heart, and they accumulate in the legs, causing symptoms such as swelling, heaviness, and aching. In addition, if you sit for a long time in a cramped airplane seat, a so-called pulmonary embolism, economy class syndrome, occurs in which pulmonary blood vessels are blocked due to blood clots formed in leg veins.

In addition, in the case of lower extremity paraplegics, there are many cases in which the lower extremity motor skills and senses are lost. In this case, in the case of a normal person, blood circulation in the calf or the like can be forced by walking or stretching, but in the case of a disabled person, active movement of the lower extremities is often impossible, so the problem of blood circulation is even greater.

There must be movement in the veins of the lower limbs so that blood must be moved from the legs to the upper body by the pump action. If there is no movement of the lower limbs, the blood flow in the veins is stagnant, and blood clots occur there, blocking the pulmonary blood vessels, resulting in pulmonary embolism such as difficulty breathing and fainting. can happen

Sitting puts pressure on the lower body and reduces blood circulation between the upper and lower body. Sitting for more than 1 hour reduces blood vessel function, and for more than 3 hours, blood vessel function in the upper body also deteriorates.

In addition, a sedentary lifestyle for a long time gradually expands the venous wall, causing valve damage and loss of function, and decreases the vascular pump function of the muscles, increasing the risk of blood circulation disorders such as edema, varicose veins, and deep vein thrombosis.

The calves are called the second heart, and when you sit for a long time, blood often flows to the toes, and because of this, the blood that goes down to the toes does not go up again, and the condition in which the blood vessels are enlarged is called varicose veins. Therefore, people who live in a state of sitting in a chair for a long time or paralyzed people need a blood circulation assisting device to prevent and improve these blood circulation disorders.

Figure 1 shows a schematic diagram of the operation of a conventional footrest exercise device for improving lower extremity blood circulation. As shown in FIG. 1, the conventional footrest exercise device 20 may be configured to enable ankle flexion and plantarflexion, but in the case of ankle plantarflexion, the footrest 10 ) needs to secure space to go down the rotation axis, so unnecessary dead space is required, and in the case of ankle flexion motion, the knee joint exists in an elevated position, limiting the range of ankle flexion motion. may exist.

In other words, although a conventionally introduced blood circulation assisting device through ankle exercise has been introduced, the height of the rotation axis of the footrest is high, so the rotation range of the ankle cannot be secured naturally within a sufficient range at the height of a normal chair, and dead space is generated. there was.

The present invention solves the problem of providing a footrest exercise device for blood circulation of the lower extremities capable of maximizing the blood circulation of the lower extremities by performing pump movements of the calf muscles, including ankle flexion and plantarflexion movements, with electric driving force. as a task to

In addition, the present invention is a problem to solve the problem of minimizing the waste of space in the vicinity of the footrest, that is, to provide a footrest exercise device for lower extremity blood circulation that can minimize the volume and weight without creating a dead space.

In addition, the present invention has to solve the problem of providing a footrest exercise device capable of greatly improving the blood circulation of the lower extremities by pumping the entire calf muscle connected to the Achilles tendon while increasing the ankle rotation radius.

In order to solve the above problems, the present invention is a pair of scaffold shafts disposed spaced apart in parallel in the front and rear directions; and a pair of scaffolding members each having a pair of scaffolding members mounted on the pair of scaffold shafts in directions facing each other and constituting a pair of scaffolding areas in the left and right directions; a motor drive unit disposed between the pair of footrest areas and having one drive motor and at least one gear member; and a link unit connecting the motor driver and the pair of scaffold members so that the pair of scaffold members constituting each of the scaffold areas are alternately rotated in opposite directions by the motor driver. Exercise equipment can be provided.

In addition, the first scaffolding unit having a first scaffolding shaft and a pair of first scaffolding members each mounted on both sides of the first scaffolding shaft with the motor driving unit and the link unit interposed therebetween; And, a second scaffolding portion having a second scaffolding shaft and a pair of second scaffolding members respectively mounted on both sides of the second scaffolding shaft with the motor driving unit and the link unit interposed therebetween; and the first scaffolding, The member and the second scaffolding member may have a structure overlapping on the same plane in each scaffolding area.

In addition, the first scaffolding member and the second scaffolding member are formed at predetermined intervals with a shaft fixing portion fixed to each of the scaffolding shafts and a plurality of rod-shaped blades branching and extending from each of the shaft fixing portions, and the first scaffolding member is formed at predetermined intervals. The scaffolding member and the blade portion of the second scaffolding member may cross each other and be disposed on the same plane.

Here, the motor drive unit may include a drive motor and a gear connection unit connecting the drive motor and the link unit so that each of the scaffold shafts rotates according to the drive of the drive motor.

In this case, the link unit may include a pair of first scaffold shaft rotation segments vertically fixed to each scaffold area of the first scaffold shaft; a pair of first intermediate segments connected to each of the first scaffold shaft pivot segments and a hinge joint; and a pair of first driving segments connected to each of the first intermediate segments through a hinge joint; and a pair of second scaffold shaft rotation segments vertically fixed to each scaffold region of the second scaffold shaft; a pair of second intermediate segments connected to each of the second scaffold shaft pivot segments and a hinge joint; And, a pair of second driving segments connected to each of the second intermediate segments through a hinge joint; a second link unit configured to include; may include.

In addition, the first or second driving segment, the first or second intermediate segment, and the first or second scaffold shaft rotation segment constituting the first link unit or the second link unit can be connected in a zigzag form with a hinge joint, respectively. there is.

In addition, the pair of first driving segments of the first link portion are connected to the pair of second driving segments of the second link unit through a hinge joint, respectively, and the first drive when the drive motor of the motor drive unit is driven. When the crankshaft connected to the hinge joint of the segment and the second driving segment is propelled, the first or second driving segment and the first or second intermediate segment constituting the first or second link portion located in the propulsion direction of the crankshaft And the first or second scaffolding shaft rotation segment is rotated so that the first or second scaffolding member can be rotated.

In addition, the second or first intermediate segment and the second or first footrest shaft rotation segment constituting the second or first link portion rearward in the propulsion direction of the crankshaft may maintain a stationary state.

Here, a partition plate is provided between the pair of scaffolding parts to accommodate the motor driving part and the link part, respectively, and the partition plate is provided so that the hinge joint connecting the first driving segment and the second driving segment is slidable Curved guide groove to be mounted; A hinge joint connecting the first or second intermediate segment and the first or second driving segment may include a straight guide groove slidably mounted thereto.

In this case, the motor driving unit may include a driving motor; a crankshaft perpendicular to the rotation axis of the driving motor and connected to a hinge joint interconnecting the first driving segment and the second driving segment; and a gear connection unit that connects the driving motor and the crankshaft and converts the rotational force of the driving motor into the propulsive force of the crankshaft.

And, the gear connection unit is fastened to be driven by a worm gear mounted on the driving shaft of the driving motor, a worm wheel gear fastened to the worm gear, a first spur gear mounted coaxially with the worm wheel gear, and the first spur gear A second spur gear and a crank member fastened to the second spur gear and having a long hole through which the crankshaft is accommodated and propelled.

Also, the rotating shafts of the first spur gear and the second spur gear may be supported on the same shaft support.

According to the footrest exercise device for lower extremity blood circulation according to the present invention, the lower extremity blood circulation can be maximized by performing a pump exercise of the calf muscles including ankle flexion and plantarflexion exercises with an electric driving force A footrest exercise device for blood circulation can be provided.

In addition, according to the footrest exercise device for lower extremity blood circulation according to the present invention, it is effective for lower extremity blood circulation by increasing the radius of rotation of the ankle, and does not create a dead space in that all of them rotate only in the upward direction, so that the conventional The size can be reduced compared to the foot exercise device.

In addition, according to the footrest exercise device for blood circulation of the lower extremities according to the present invention, the effect of greatly improving the blood circulation of the lower extremities can be obtained by pumping the entire calf muscle connected to the Achilles tendon while increasing the radius of rotation of the ankle.

In addition, according to the footrest exercise device for lower extremity blood circulation according to the present invention, the most effective rotation angle of the footrest for lower extremity blood circulation and the motion limiting conditions of the linked link part are determined in advance, and the movement trajectory of the link axis satisfying the conditions It is possible to obtain and provide an optimal footrest exercise device.

Figure 1 shows a schematic diagram of the operation of a conventional footrest exercise device for improving lower extremity blood circulation.
Figure 2 shows a perspective view of a footrest exercise device for lower extremity blood circulation according to an embodiment of the present invention.
Figure 3 shows a plan view of the footrest exercise device for lower extremity blood circulation according to an embodiment of the present invention.
Figure 4 shows a simplified operation diagram of the operation of the footrest exercise device for lower extremity blood circulation according to an embodiment of the present invention.
5 is a perspective view showing the structure of a motor driving unit of an ankle device for lower extremity blood circulation according to an embodiment of the present invention.
6 illustrates the operation of the link unit and the footrest member of the footrest exercise device for lower extremity blood circulation according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed content will be thorough and complete, and the spirit of the invention will be sufficiently conveyed to those skilled in the art. Like reference numbers indicate like elements throughout the specification.

Figure 2 shows a perspective view of a footrest exercise device for lower extremity blood circulation according to an embodiment of the present invention, and Figure 3 shows a plan view of a footrest exercise device for lower extremity blood circulation according to an embodiment of the present invention.

As shown in Figures 2 and 3, the footrest exercise device for lower extremity blood circulation according to an embodiment of the present invention includes a pair of footrest shafts 110a and 110b disposed spaced apart in parallel in the front and rear directions; and a pair of scaffolding members 130a and 130b mounted on the pair of scaffold shafts 110a and 110b in opposite directions and constituting a pair of scaffolding areas in the left and right directions; ; a motor driving unit 200 disposed between the pair of footrest areas and having one driving motor 211 and at least one gear member; And, the motor driving unit 200 and the pair of scaffolding members 130a, so that the pair of scaffolding members 130a and 130b constituting each of the scaffolding areas are alternately rotated in opposite directions by the motor driving unit 200, 130b) may be configured to include a link unit 230 connecting them.

The footrest exercise device for blood circulation according to the present invention may be configured such that footrest areas are provided on both sides of the motor driving unit 200 to simultaneously exercise both feet of the user.

As such, the present invention drives the two scaffold shafts 110a and 110b by one drive motor located in the center, and has two scaffold members disposed in opposite directions to each scaffold shaft to alternately rotate the scaffold members. Equipped with a device capable of rotating in a preset angular range, it performs a pump exercise of calf muscles including dorsiflexion and plantarflexion exercises with an electric driving force without forming a dead space. A footrest exercise device for blood circulation of the lower extremities capable of maximizing the blood circulation of the lower extremities can be provided.

Here, the scaffolding portion 100 is a pair of first scaffolding shafts 110a and each mounted on both sides of the first scaffolding shaft 110a with the motor driving unit 200 and the link unit 230 interposed therebetween. 1 scaffolding member (130a) having a first scaffolding portion (100a); In addition, a pair of second scaffolding members 130b mounted on both sides of the second scaffolding shaft 110b and the motor driving unit 200 and the link unit 230 interposed therebetween, respectively. A second scaffolding portion 100b having a; and the first scaffolding member 130a and the second scaffolding member 130b may have a structure overlapping on the same plane in each scaffolding area.

As shown in FIGS. 2 and 3, the first scaffold shaft 110a and the second scaffold shaft 110b are spaced apart in parallel in the front-back direction, but have different rotational directions, and alternately set a predetermined range of angles. It is formed to rotate within, to form a pair of scaffolding areas so that the first scaffolding member 130a and the second scaffolding member 130b mounted on each scaffold shaft 110a, 110b are independently driven in an overlapped state. can

The pair of footrest areas refer to footpad mounting areas provided on both sides with the motor driving unit 200 interposed therebetween.

And, the first scaffolding member (130a) and the second scaffolding member (130b) are fixed to the respective scaffold shafts (110a, 110b) shaft fixing parts (131a, 131b) and each of the shaft fixing parts (131a, 131b) A plurality of rod-shaped blade parts 133a and 133b branching and extending from are formed at predetermined intervals, and the blade parts 133a and 133b of the first scaffolding member 130a and the second scaffolding member 130b are They may cross each other and be disposed on the same plane.

That is, the pair of first scaffolding members (130a) are at least a first shaft fixing portion (131a) and the first shaft fixing portion (131a) having a regular interval in a direction perpendicular to each other fixed along the first scaffolding shaft (110a). It is a structure in which one or more bar-shaped blade parts 133a are formed, and the second scaffolding member 130b includes a second shaft fixing part 131b fixed along the second scaffolding shaft 110b, and a second shaft fixing part 131b. At least one rod-shaped blade portion 133b having a regular interval in the direction of the first scaffold axis 110a is provided, but the first and second rod-shaped blade portions 133a and 133b are parallel to each other without overlapping each other. It is arranged side by side to form each footrest area for supporting the user's feet.

The structure of the rod-shaped first and second blade parts 133a and 133b constituting one scaffolding area may be a fork-shaped structure such that straight rods are alternately arranged side by side so as not to overlap each other, but the first scaffolding member When the (130a) and the second scaffolding member (130b) are rotated alternately, any structure that forms a scaffolding area without overlapping is possible. For example, although it may be to form a scaffolding area so as not to overlap each other by providing a first scaffolding member 130a and a second scaffolding member 130b in the shape of 'a' and 'b', but the scaffolding member 130 The structure of is preferably a structure that can increase the support area of the sole as much as possible so that the user's feet are stably supported and the supporting force is dispersed without being concentrated on a specific part.

Figure 4 shows a simplified operation diagram of the operation of the footrest exercise device for lower extremity blood circulation according to an embodiment of the present invention. Specifically, FIG. 4 (a) is a plan view of the footrest exercise device according to an embodiment of the present invention, and FIG. 4 (b) a state in which the footrest member, which is not driven by the footrest exercise device, is horizontally arranged to support the user's feet. 4(c) is an operation diagram showing a dorsiflexion state of the user's feet as the first footrest member 130a rotates, and FIG. 4(d) shows the second footrest member 130b It is an operation diagram showing a plantarflexion state of a user's foot by rotation.

As shown in (b) of FIG. 4, in a parallel state in which the first footrest portion and the second footrest portion are not driven, the foot surface can be supported in a horizontal state in which the user's ankle is not bent or stretched.

As shown in (c) of FIG. 4, when the first scaffolding shaft 110a is rotated by driving the first scaffolding unit, the first scaffolding member 130a fixed to the first scaffolding shaft 110a follows. It rotates, and the rotation of the first scaffold member 130a makes the user's ankle dorsiflexion, and as shown in (d) of FIG. 4, the first scaffold member 130a is rotated before When it returns to its original position and the second footrest member 130b rotates by driving the second foothold shaft 110b, the user's ankle makes a plantarflexion state.

Conventional footrest exercise devices for improving lower extremity blood circulation are configured to rotate around a single axis, and as shown in FIG. There is a problem in that the size of the footrest exercise device is unnecessarily large because it requires a dead space between the ground, but the footrest exercise device according to the embodiment of the present invention is spaced apart from each other so that the two footrest axes alternate with each other in the upward direction Since it rotates and rotates, it is effective for lower extremity blood circulation by increasing the radius of rotation of the ankle, and it does not create a dead space in that it rotates only in the upward direction, so it has the advantage of being able to reduce the size compared to conventional footrest exercise devices.

In particular, as shown in (c) and (d) of FIG. 4, in the footrest exercise device according to the embodiment of the present invention, the first footrest shaft 110a and the second footrest shaft 110b are the size of a general user's foot The effect of rotating the ankle around the heel and the ball of the foot by rotating while alternating with each other in a manner of lifting the first scaffold member 130a and the second scaffold member 130b while being spaced apart at a greater interval and rotating around each axis. In that it can be obtained, the effect of greatly improving the blood circulation of the lower extremities can be obtained by pumping the entire calf muscle connected to the Achilles tendon while increasing the ankle rotation radius.

That is, as shown in (c) of FIG. 4, the first scaffold member 130a rises around the first scaffold axis 110a while the ankle is bent around the user's heel supported (Dorsiflexion). ), the calf muscles are relaxed through the operation, and as shown in (d) of FIG. It is possible to obtain the effect of forcing the calf muscle pump exercise that contracts the calf muscles through the plantarflexion motion in which the ankle is extended.

5 is a perspective view showing the structure of a motor driving unit of an ankle device for lower extremity blood circulation according to an embodiment of the present invention.

As shown in FIG. 5, the motor driving unit 200 is driven by a driving motor 211 and the driving motor 211 so that each of the scaffold shafts 110a and 110b rotates according to the driving of the driving motor 211. And it may be configured to include a gear connection unit 220 that connects the link portion 230.

Specifically, the motor driving unit 200 of the foot exercise device according to an embodiment of the present invention includes a drive motor 211 positioned at the center of both foot area of the first foot shaft 110a and the second foot shaft 110b, A gear connection unit 220 connected through the shaft of the drive motor 211, and a link unit 230 to which the gear connection unit 220 and the first footrest shaft 110a and the second footrest shaft 110b are connected. When the drive motor 211 rotates in one direction, the one side scaffolding axis is rotated at an angle within a certain range through the operation of the link unit 230 fixedly connected to the one side scaffolding axis, thereby increasing both scaffolding areas. Rotate the first or second scaffolding member (130a, 130b), while one side scaffolding member rotates, the other scaffolding axis and the other scaffolding member are provided so as to be fixed, so that the two scaffolding members are provided according to the rotation direction of the drive motor 211 It provides a foot exercise device that can rotate alternately with each other.

In addition, the link unit 230 may include a pair of first scaffold shaft rotation segments 231a vertically fixed to each scaffold area of the first scaffold shaft 110a; a pair of first intermediate segments 233a connected to each of the first scaffold shaft rotation segments 231a and a hinge joint; and a pair of first driving segments 235a connected to each of the first intermediate segments 233a by a hinge joint; a first link unit 230 comprising; And a pair of second scaffolding shaft pivot pieces 231b fixed vertically to each scaffolding area of the second scaffolding shaft 110b; a pair of second intermediate segments 233b connected to each of the second scaffold shaft rotation segments 231b by a hinge joint; and a pair of second driving segments 235b connected to each of the second intermediate segments 233b by a hinge joint.

More specifically, as shown in FIG. 5, the first or second driving segments 235a and 235b constituting the first link part 230 or the second link part 230, the first or second The intermediate pieces 233a and 233b and the first or second scaffold shaft rotation pieces 231a and 231b may be connected in a zigzag shape by hinge joints, respectively.

In addition, the pair of first driving segments 235a of the first link unit 230 are connected to the pair of second driving segments 235b of the second link unit 230 through a hinge joint, respectively. When the crankshaft 218 connected to the hinge joint of the first driving segment 235a and the second driving segment 235b is driven when the driving motor 211 constituting the motor driving unit 200 is driven, the The first or second drive segments 235a and 235b constituting the first or second link parts 230a and 230b located in the propulsion direction of the crankshaft 218, and the first or second intermediate segments 233a and 233b ) And the first or second scaffold shaft pivoting segments 231a and 231b are rotated so that the first or second scaffolding members 130a and 130b can be rotated.

In this case, the second or first intermediate segments 233b and 233a constituting the second or first link portions 230b and 230a rearward in the propulsion direction of the crankshaft 218 and the second or first footrest shaft are rotated. Slices 231b and 231a may remain stationary.

That is, the scaffolding axis pivoting segment and the intermediate segment constituting the link portion connected to the scaffolding member, other than the scaffolding member driven when the motor driver 210 is driven, may be in a fixed state.

A partition plate 240 is provided between the pair of scaffolding parts 100a and 100b to accommodate the motor driving part 200 and the link part 230, respectively. A curved guide groove 245 to which a hinge joint connecting the driving segment 235a and the second driving segment 235b is slidably mounted and the first or second intermediate segments 233a and 233b and the first or second intermediate segments 233a and 233b. A pair of separated straight guide grooves 247 (see FIG. 6) to which a hinge joint connecting the second driving segments 235a and 235b is slidably mounted may be provided in a cut shape.

The curved guide groove 245 guides the rotation of the drive hinge joint 237 connecting the first link portion 230a and the second link portion 230b in rotation, and the pair of straight guide grooves 247 is provided at the lower end of each curved guide groove 245 and connects the first and second intermediate segments 233a and 233b and the first and second driving segments 235a and 235b. Guides the horizontal linear movement of a pair of hinge joints can do.

Here, the driving hinge joint 237 located in the center of the link part 230 connecting the pair of first link parts 230a and the second link part 230b is rotated along the curved guide groove 245 It may be connected to the motor driving unit 200 .

In addition, as shown in Figure 5, the motor drive unit 200 may be configured to further include a bottom plate 250 positioned between both footrest parts (100a, 100b).

Looking more specifically at the operation of the link unit 230, a pair of driving hinge joints 237 connected to both sides of the motor driving unit 210 located at the center of the motor driving unit 200 are connected, and the driving hinge joint 237 is connected in both directions to the first scaffold shaft 110a and the second scaffold shaft 110b and the first link portion 230a and the second link portion 230b.

And, as shown in FIG. 5, the motor driving unit 200 includes a driving motor 211; a crankshaft 218 perpendicular to the rotating shaft 212 of the driving motor 211 and connected to a hinge joint connecting the first driving segment 235a and the second driving segment 235b; and a gear connection unit 220 that connects the driving motor 211 and the crankshaft 218 and converts the rotational force of the driving motor 211 into the driving force of the crankshaft 218. can

In addition, the gear connection unit 220 includes a worm gear 214 mounted on the drive shaft 212 of the drive motor 211, a worm wheel gear 217 coupled to the worm gear 214, and the worm wheel gear 217 A first spur gear 215 mounted coaxially, a second spur gear 216 fastened to be driven by the first spur gear 215, and fastened to the second spur gear 216 to form the crankshaft ( 218) having a long hole 219h in which it is accommodated and propelled, and a crank member 219 rotationally driven by the second spur gear 216;

The long hole 219h of the crank member 219 accommodates the crankshaft 218, propels the crankshaft 218 according to the rotation of the second spur gear, and alternately rotates the first and second scaffolding members to rotate the ankle. exercise can be performed.

In addition, since a shaft support is provided on the bottom plate 250, the rotation shafts of the first spur gear 215 and the second spur gear 216 may be rotatably mounted together with the shaft support.

6 shows the operation of the link unit and the footrest member of the footrest exercise device for lower extremity blood circulation according to an embodiment of the present invention, and FIG. 7 shows the footrest exercise device for lower extremity blood circulation according to an embodiment of the present invention. A schematic diagram of the motion trajectory of the link unit during driving is shown.

And, as shown in Figure 6 (a), in a state where both scaffold members are disposed not to rotate on the same plane, the first link portion (230a) and the second link portion (230b) A driving hinge joint for pivoting connection 237 may be disposed at the uppermost end of the curved guide groove 245, and the drive hinge joint 237 may be propelled to the left or right with respect to the top of the curved guide groove 245 according to the driving of the motor can

Here, as shown in FIG. 6 (b) or 6 (c), the drive hinge joint 237 is curved guide groove 245 in the direction of the first or second scaffold shafts 110a, 110b by the motor drive unit When rotated along the first or second intermediate segment (233a, 233b) and the first or second driving segment (235a, 235b) each hinge joint connected along the straight guide groove 247 located at the bottom It moves to the first or second scaffold shaft 110a or 110b, and is folded through a hinge joint to which the first or second scaffold shaft pivoting segment 231a or 231b and the first or second intermediate segment 233a or 233b are connected. While holding, the first or second scaffolding shaft rotation segments 231a and 231b fixedly connected to the first or second scaffolding shafts 110a and 110b are rotated to rotate the first or scaffolding shafts 110a and 110b.

Therefore, by driving the motor drive unit 210, the pair of driving hinge joints 237 on both sides within the angular range of the curved guide groove 245 formed in the partition plate 240 of the motor drive unit 200 are first scaffold shafts 110a ) Or by rotating in the direction of the second scaffolding shaft (110b), the first scaffolding shaft (110a) or the second scaffolding shaft (110b) and the fixedly connected first scaffolding member (130a) or second scaffolding member (130b) alternate with each other, be able to rotate. In addition, when any one side link portion 230 is driven by the above-described driving hinge joint 237, the other side link portion 230 is fixed or locked so that the hinge joint connecting the slices to the slice can be fixed ) structure.

The fixing structure of the hinge joint may be implemented by dividing the linear guide groove.

That is, the curved guide groove 245 shown in FIG. 6 guides the rotation of the driving hinge joint 237 connecting the first link portion 230a and the second link portion 230b to pivot, and the straight guide The groove 247 is provided at the lower end of each curved guide groove 245 and connects the first and second intermediate segments 233a and 233b and the first and second driving segments 235a and 235b. Horizontal of a pair of hinge joints Guide the linear movement, but the straight guide groove 247 is formed on a straight line in a symmetrical position, two of which are formed below the curved guide groove 245, and the first and second intermediate slices 233a and 233b and the first and second 2 The drive hinge joint 237, which pivotally connects the first link part 230a and the second link part 230b by limiting the linear sliding range of the pair of hinge joints connecting the drive segments 235a and 235b, is curved. When passing through the uppermost section of the guide groove 245, sliding of the hinge joint connecting the first or second intermediate segments 233a and 233b and the first or second driving segments 235a and 235b at the rear is blocked, The first or second intermediate section (233a, 233b) and the first or second scaffold shaft pivoting section (231a, 231b) are fixed so that the first or second scaffolding member (130a, 130b) is not rotated. can

In this way, in the foot exercise device according to the embodiment of the present invention, when the driving hinge joint 237 rotates in the direction of the first foot shaft 110a, the driving segment, the intermediate segment, and the rotation of the first link part 230a While the fragment is operating, the first scaffolding shaft 110a is rotated at an angle within a certain range, and the first scaffolding member 130a fixed and extended to the first scaffolding shaft 110a is rotated while supporting the scaffolding portion 100. When the user's foot is forced to perform a dorsiflexion motion and, conversely, when the drive hinge joint 237 rotates in the direction of the second footrest axis 110b, the second footrest member 130b through the same operation process While rotating, the user's foot is forced to perform a plantarflexion motion.

Although this specification has been described with reference to preferred embodiments of the present invention, those skilled in the art can variously modify and change the present invention within the scope not departing from the spirit and scope of the present invention described in the claims described below. will be able to carry out Therefore, if the modified implementation basically includes the elements of the claims of the present invention, all of them should be considered to be included in the technical scope of the present invention.

100: scaffolding
110: scaffold axis
130: scaffold member
200, 300: motor driving unit
210, 310: motor driving unit
211: drive motor
212: motor axis
214: worm gear
215: first general gear
216: second general gear
217: crank
218: crankshaft
230: link unit
237: driving hinge joint
240: bulkhead plate
245: curved guide groove
247: straight guide groove
311: motor
314: magnetic ring encoder
315: reducer
318: crank connection

Claims (12)

A pair of scaffold shafts disposed spaced apart in parallel in the front and rear directions; and a pair of scaffolding members each having a pair of scaffolding members mounted on the pair of scaffold shafts in directions facing each other and constituting a pair of scaffolding areas in the left and right directions;
a motor drive unit disposed between the pair of footrest areas and having one drive motor and at least one gear member; and,
A footrest exercise device for blood circulation including a link unit connecting the motor drive unit and the pair of footrest members so that the pair of foothold members constituting each of the footrest areas are alternately rotated in opposite directions by the motor drive unit. . According to claim 1,
the footrest
A first scaffolding unit having a first scaffolding shaft and a pair of first scaffolding members each mounted on both sides of the first scaffolding shaft with the motor driving unit and the link unit interposed therebetween; and,
A second scaffolding portion having a second scaffolding shaft and a pair of second scaffolding members respectively mounted on both sides of the second scaffolding shaft with the motor driving unit and the link unit interposed therebetween;
The first scaffolding member and the second scaffolding member have a structure overlapping on the same plane in each scaffolding area. According to claim 2,
The first scaffolding member and the second scaffolding member are formed at predetermined intervals with a shaft fixing portion fixed to each of the scaffolding shafts and a plurality of bar-shaped blades branching and extending from each of the shaft fixing portions, the first scaffolding member And the blade portion of the second scaffolding member crossed with each other scaffold exercise device for blood circulation, characterized in that disposed on the same plane. According to claim 1,
The motor drive unit,
Footrest exercise device for lower extremity blood circulation, characterized in that it comprises a drive motor and a gear connection unit connecting the drive motor and the link portion so that each of the footrest shafts rotates according to the driving of the drive motor. According to claim 2,
The link part,
a pair of first scaffold axis rotation segments fixed perpendicularly to each scaffold area of the first scaffold axis; a pair of first intermediate segments connected to each of the first scaffold shaft pivot segments and a hinge joint; and a pair of first driving segments connected to each of the first intermediate segments through a hinge joint; and
a pair of second scaffold shaft rotation segments vertically fixed to each scaffold region of the second scaffold shaft; a pair of second intermediate segments connected to each of the second scaffold shaft pivot segments and a hinge joint; and a pair of second driving segments connected to each of the second intermediate segments by a hinge joint. According to claim 5,
The first or second driving segment, the first or second intermediate segment, and the first or second scaffold shaft rotation segment constituting the first link unit or the second link unit are each connected in a zigzag form by a hinge joint. A footrest exercise device for blood circulation. According to claim 5,
The pair of first driving segments of the first link unit are connected to the pair of second driving segments of the second link unit through a hinge joint, and when the driving motor of the motor driving unit is driven, the first driving segment and When the crankshaft connected to the hinge joint of the second drive segment is propelled,
The first or second driving segment, the first or second intermediate segment, and the first or second scaffolding shaft rotation segment constituting the first or second link unit positioned in the propulsion direction of the crankshaft rotate to rotate the first or second link unit. A footrest exercise device for lower extremity blood circulation, characterized in that the footrest member rotates. According to claim 7,
Footrest exercise device for blood circulation, characterized in that the second or first intermediate segment and the second or first foot shaft rotation segment constituting the second or first link portion rearward in the propulsion direction of the crankshaft maintain a stationary state. . According to claim 5,
A partition plate is provided between the pair of scaffolding portions to accommodate the motor driving unit and the link unit, respectively,
The bulkhead plate includes a curved guide groove in which a hinge joint connecting the first driving segment and the second driving segment is slidably mounted; and,
and a straight guide groove in which a hinge joint connecting the first or second intermediate segment and the first or second driving segment is slidably mounted. According to claim 5,
The motor driving unit may include a driving motor; a crankshaft perpendicular to the rotation axis of the driving motor and connected to a hinge joint interconnecting the first driving segment and the second driving segment; and a gear connection unit connecting the driving motor and the crankshaft and converting the rotational force of the driving motor into the propulsive force of the crankshaft. According to claim 10,
The gear connection unit includes a worm gear mounted on the driving shaft of the driving motor, a worm wheel gear coupled to the worm gear, a first spur gear mounted coaxially with the worm wheel gear, and a second coupled to be driven by the first spur gear. A foot exercise device for blood circulation, comprising: a spur gear and a crank member fastened to the second spur gear and having a long hole through which the crankshaft is accommodated and propelled. According to claim 11,
The footrest exercise device for lower extremity blood circulation, characterized in that the rotation shafts of the first spur gear and the second spur gear are supported on the same shaft support.