Patent Description:
In general, each joint of a human body has a structure in which neighboring parts of the joint are rotatable with respect to the joint.

Meanwhile, people such as the elderly or rehabilitation patients with weak muscles have difficulty in moving their joints normally compared to healthy people, and even though they need exercise, it is difficult for them to exercise with typical exercise equipment in reality.

When a muscle is weakened or a damaged joint is left unattended over time, the muscle or joint becomes gradually stiff, causing pain when moving, which may interfere with normal activities even when damaged nerves recover.

In addition, patients who have undergone wrist and/or shoulder joint surgery have difficulty exercising by themselves, so joints of the wrist and/or shoulder may become stiff as muscles are weakened and nutrition supply is poor.

Thus, in order to prevent joint deformity and return to normal activities, affected people need to perform rehabilitation exercises accompanied by pain for a long period of time.

In an effort to solve this problem, as a related-art rehabilitation exercise device for enabling the elderly or rehabilitation patients with weak muscles to perform joint exercises through passive rehabilitation, a robotic shoulder apparatus for stroke patient's rehabilitation has been disclosed in <CIT>.

Such a rehabilitation exercise device disclosed in the related art has an unnecessarily complex structure, and thus is problematic in that it is difficult to provide benefits to more users because they need to bear the cost of purchase and installation. In addition, the rehabilitation exercise device is difficult to move, so most users need to move for exercise to the place where the device is located, which is cumbersome.

<CIT> relates to an exoskeleton robot for upper limb rehabilitation of stroke patients.

<CIT> illustrates for example a lower limb rehabilitation training robot is provided, which includes a bedstead support and a rising bedstead arranged on the bedstead support, and further includes a linear motion device, a push rod device, a bionic leg arranged at one end of a surface of the rising bedstead and hinged to the rising bedstead, and a bed board configured to support a patient and arranged at another end of the rising bedstead. The linear motion device is arranged between the bedstead support and the rising bedstead, is configured to allow the rising bedstead to slide along the bedstead support, and has one lateral surface connected to the bedstead support and another lateral surface hinged to the rising bedstead.

<CIT> relates to a walking motion assisting apparatus including an actuator unit which controls operation of a driving body so as to impart to the lower leg an assistive force calculated by applying, to output pattern stored data, a walking motion timing based on a thigh phase angle to be detected; and a terminal device which can wirelessly communicate with a control device of the actuator unit. The terminal device can receive input of an assistive force setting, which includes the duration that the assistive force is applied in a walking cycle, and produces, on the basis of the assistive force setting, output pattern setting data which indicates the relationship between the walking motion timing and the magnitude of the assistive force to be imparted to the lower leg.

<CIT> concerns a mechanism for assisting an upper limb muscle is provided to be freely used by installing a plurality of frames and joint links.

<CIT> relates to an exoskeleton system for assisting lower limb joints, comprising a first assisting unit supporting the hip joint area of human body to assist the movement of the hip joint area of the human body <NUM> degrees of freedom, a second assisting unit supporting the knee joint area of the human body to assist the movement of the knee joint area by a first degree of freedom; a third assisting unit supporting the ankle joint area of the human body to assist the movement of the ankle joint area by second degrees of freedom, and a driving unit detachably connected to at least one of the first to third assisting units to provide driving force.

<CIT> concerns a device capable of extremely easily and accurately setting a movement range in a short time and smoothly performing continuous joint passive movement for an appropriate movement amount required for training without giving pains to a patient.

<CIT> relates to a a back module for an exoskeleton structure, comprising a spinal column segment designed to extend along a spinal column of a user, the spinal column segment comprising a plurality of vertebral elements, stacked on one another, and a flexible connecting element connecting the vertebral elements to one another, the spinal column segment having a stable equilibrium position in which the flexible connecting element holds the vertebral elements supported against one another, and the flexible connecting element being elastic so that, during a movement of the back of the user, the flexible connecting element allows a movement of the vertebral elements with respect to one another, while exerting a return force tending to return the spinal column segment the stable equilibrium position.

Accordingly, the present disclosure has been made keeping in mind the above problems occurring in the related art, and an objective of the present disclosure is to provide a rehabilitation exercise device for upper and lower limbs, the rehabilitation exercise device being capable of: enabling a user to perform a rehabilitation exercise by simply adjusting a mounting angle of his/her upper or lower limb in response to the condition of a rehabilitation patient; being simplified in structure, thereby minimizing the cost of purchase and installation; being convenient to move, thereby enabling the elderly or rehabilitation patients with weak muscles to easily move and place the device on a desk, chair, mattress, etc., and then to easily place their upper limb or lower limb on the device; and enabling the user to perform a rehabilitation exercise of each joint of his/her upper limb or lower limb to resemble normal motion.

In order to achieve the above objective, according to one aspect of the present disclosure, there is provided a rehabilitation exercise device for upper and lower limbs, the rehabilitation exercise device including: a first support supporting a user's hand or foot; a second support supporting a user's forearm or calf; a pair of first hinges rotatably connecting the first support and the second support to each other; a third support supporting a user's upper arm or thigh; a pair of second hinges rotatably connecting the second support and the third support to each other; and a distance adjustment part configured to adjust a distance between the first support and the third support by adjusting length of the second support.

Here, the second support comprises: a first fixing plate connected to the pair of first hinges to be rotatably coupled to the first support; a second fixing plate connected to the pair of second hinges to be rotatably coupled to the third support, and configured to be mutually approached or spaced apart with respect to the first fixing plate by the distance adjustment part; a hinge shaft provided between the first fixing plate and the second fixing plate; a first moving plate provided between the first fixing plate and the hinge shaft, and configured to be reciprocally moved therebetween; and a second moving plate provided between the second fixing plate and the hinge shaft, and configured to be reciprocally moved therebetween.

Furthermore, the distance adjustment part comprises: a first crank rotatably connected to the first fixing plate and the hinge shaft, and configured to convert a rotary motion of the hinge shaft into a linear motion of the first fixing plate; and a second crank rotatably connected to the second fixing plate and the hinge shaft, and is configured to convert the rotary motion of the hinge shaft into a linear motion of the second fixing plate.

Furthermore, the first crank comprises: a first adjustment link rotatably coupled to the hinge shaft; and a second adjustment link having a first side rotatably coupled to the first adjustment link, and a second side rotatably coupled to the first fixing plate, and the second crank comprises: a third adjustment link rotatably coupled to the hinge shaft; and a fourth adjustment link having a first side rotatably coupled to the third adjustment link, and a second side rotatably coupled to the second fixing plate.

Furthermore, the first crank further comprises a first connection link rotatably coupled to the first moving plate and the first adjustment link; and the second crank further comprises a second connection link rotatably coupled to the second moving plate and the third adjustment link.

Furthermore, the rehabilitation exercise device further comprises a connection bar connecting the first fixing plate and the second fixing plate to each other. Here, any one of the first fixing plate and the second fixing plate is fixed to the connection bar, and a remaining one of the first fixing plate and the second fixing plate is coupled to the connection bar to be movable therealong.

Furthermore, the rehabilitation exercise device further comprises a length stopper provided on the connection bar, and configured to limit relative movement of the first fixing plate and the second fixing plate.

Furthermore, the length stopper comprises: a restraining lever rotatably provided on any one of the first fixing plate and the second fixing plate coupled to be movable along the connection bar; and a pressurizing member provided on a rotational trajectory of the restraining lever, and configured to pressurize or release the connection bar by being approached to or spaced apart from the connection bar in response to rotation of the restraining lever.

Furthermore, the restraining lever comprises: a pusher provided at a first end thereof, and configured to pressurize or release the pressurizing member; and a knob provided at a second end thereof, and configured to rotate the pusher to allow the pusher to pressurize or release the pressurizing member.

Furthermore, the rehabilitation exercise device further comprises a rotation stopper provided on the hinge shaft, and configured to limit relative movement of the first fixing plate and the second fixing plate.

Furthermore, the rotation stopper comprises: a restraining dial; a shaft body forming the hinge shaft; a shaft column protruding upward from the shaft body and to which the restraining dial is coupled so as to be rotatable and liftable; and a shaft plate configured to be rotated around the shaft body, and connected to the first adjustment link and the third adjustment link. Here, a plurality of restraining holes are formed in the shaft body at a predetermined interval along a circumferential direction of the shaft column; the restraining dial comprises a restraining pin protruding from an end thereof oriented toward the shaft body and configured to be inserted into or released from any one selected from among the plurality of restraining holes, and a catching recess depressed in a region of the end of the restraining dial oriented toward the shaft body, at a position spaced apart from the restraining pin; and the shaft plate comprises a catching protrusion configured to connect the restraining dial to the shaft plate by being caught by the catching recess of the restraining dial.

Furthermore, when the restraining pin is inserted into the restraining hole, the catching protrusion is caught by the catching recess to prevent the restraining dial from being rotated around the shaft column; and when the restraining pin is released from the restraining hole, the catching protrusion is maintained caught by the catching recess, allowing the restraining dial to be rotatable forward and backward around the shaft column, so that the first fixing plate and the second fixing plate are mutually approached or spaced apart with respect to the shaft body.

Furthermore, the rehabilitation exercise device further comprises an elastic member provided between the shaft column and the restraining dial, and configured to generate an elastic force acting on the restraining dial so that the restraining pin is inserted into the selected restraining hole.

Furthermore, the rehabilitation exercise device further comprises a first guide rod extending in length from the first fixing plate toward the first moving plate, and configured to guide reciprocating movement of the first moving plate; and a second guide rod extending in length from the second fixing plate toward the second moving plate, and configured to guide reciprocating movement of the second moving plate.

Furthermore, the rehabilitation exercise device further comprises a pair of third guide rods extending in length from the hinge shaft toward the first moving plate the second moving plate, respectively, and configured to guide reciprocating movement of the first moving plate the second moving plate.

According to the present disclosure, the rehabilitation exercise device for upper and lower limbs, the rehabilitation exercise device being capable of: enabling a user to perform a rehabilitation exercise by simply adjusting a mounting angle of his/her upper or lower limb in response to the condition of a rehabilitation patient; being simplified in structure, thereby minimizing the cost of purchase and installation; being convenient to move, thereby enabling the elderly or rehabilitation patients with weak muscles to easily move and place the device on a desk, chair, mattress, etc., and then to easily place their upper limb or lower limb on the device; and enabling the user to perform a rehabilitation exercise of each joint of his/her upper limb or lower limb to resemble normal motion.

The present disclosure relates to a rehabilitation exercise device for upper and lower limbs. The rehabilitation exercise device is characterized by including: a first support supporting a user's hand or foot; a second support supporting a user's forearm or calf; a pair of first hinges rotatably coupling the first support and the second support to each other; a third support supporting a user's upper arm or thigh; a pair of second hinges configured to be rotated in conjunction with the third support, and to which the second support part is coupled to be rotatable relative thereto; and an angle adjustment part adjusting an angle between the second support and the third support.

The above and other objectives, features, and advantages of the present disclosure will be more clearly understood from the following detailed description when taken in conjunction with the accompanying drawings. However, it should be understood that the various changes to the following embodiments are possible and the scope of the present disclosure is not limited to the following embodiments. The embodiments of the present disclosure are provided for allowing those skilled in the art to more clearly comprehend the present disclosure, and the scope of the present disclosure should be defined by the appended claims.

Terms used in this specification are selected to describe embodiments and thus should not be construed as the limit of the present disclosure. An element expressed in a singular form in this specification may be plural elements unless it is necessarily singular in the context. The terms "comprise" and/or "comprising" when used in this specification, specify the presence of stated features, but do not preclude the presence or addition of one or more other features. The same reference numerals are used throughout the different drawings to designate the same or similar components. The expression "and/or" is interpreted to include each of enumerated items, and all combinations including one or more items selected from among the enumerated items. Although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element discussed below could be termed a second element without departing from the scope of the present disclosure.

Unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

<FIG> illustrate a rehabilitation exercise device <NUM> for upper and lower limbs according to an embodiment of the present disclosure.

As illustrated in these drawings, the rehabilitation exercise device <NUM> according to the embodiment of the present disclosure includes a rehabilitation exercise unit <NUM> and a holder <NUM> for supporting the rehabilitation exercise unit <NUM>.

The rehabilitation exercise unit <NUM> may include: a first support <NUM> for supporting a user's hand or foot; a second support <NUM> for supporting a user's forearm or calf; a pair of first hinges <NUM> and <NUM> for rotatably connecting the first support <NUM> and the second support <NUM> to each other; a third support <NUM> for supporting a user's upper arm or thigh; and a pair of second hinges <NUM> and <NUM> for rotatably connecting the second support <NUM> and the third support <NUM> to each other.

The holder <NUM> includes a base plate <NUM>, and a mounting plate <NUM> on which the rehabilitation exercise unit <NUM> is mounted. The base plate <NUM> and the mounting plate <NUM> adopt a link-mechanism that converts horizontal motion into vertical motion. The link-mechanism is such that a first side of the mounting plate <NUM> is installed on the base plate <NUM> to be horizontally movable along a plate surface thereof, an intermediate region of the mounting plate <NUM> is connected to a first side of a link member <NUM>, and a second side of the link member <NUM> is rotatably installed on the base plate <NUM>.

According to the above configuration, as illustrated in <FIG>, in a state in which the mounting plate <NUM> is folded to the base plate <NUM>, as illustrated in <FIG>, upper limb rehabilitation exercise is performed. On the other hand, as illustrated in <FIG>, in a state in which the mounting plate <NUM> is erected at a certain angle from the base plate <NUM> by the link mechanism, as illustrated in <FIG>, lower limb rehabilitation exercise is performed.

Here, angle adjustment between the mounting plate <NUM> and the base plate <NUM>, and angle fixing and releasing will be described later.

The rehabilitation exercise unit <NUM> according to the present disclosure includes a distance adjustment part for adjusting the distance between the first support <NUM> and the third support <NUM> by adjusting the length of the second support <NUM> according to application in an upper or lower limb, and the length of a rehabilitation patient's upper or lower limb.

The distance adjustment part of the rehabilitation exercise unit <NUM> according to the present disclosure will be described with reference to <FIG>.

The rehabilitation exercise unit <NUM> according to the present disclosure, as an example, adopts a stacked slide-crank structure to the second support <NUM> so that the length of the second support <NUM> supporting the forearm or the calf is adjusted.

The second support <NUM> may include a first fixing plate <NUM>, a second fixing plate <NUM>, a first moving plate <NUM>, a second moving plate <NUM>, and a hinge shaft <NUM>.

The first fixing plate <NUM> is connected to the pair of first hinges <NUM> and <NUM> to be rotatably coupled to the first support <NUM>. The second fixing plate <NUM> is connected to the pair of second hinges <NUM> and <NUM> to be rotatably coupled to the third support <NUM>.

The first moving plate <NUM> is provided between the first fixing plate <NUM> and the hinge shaft <NUM> and is movable reciprocally therebetween.

The second moving plate <NUM> is provided between the second fixing plate <NUM> and the hinge shaft <NUM> and is movable reciprocally therebetween.

The hinge shaft <NUM> is provided between the first fixing plate <NUM> and the second fixing plate <NUM>.

Meanwhile, the distance adjustment part includes a first crank <NUM> and a second crank <NUM>.

The first crank <NUM> is rotatably connected to the first fixing plate <NUM> and the hinge shaft <NUM> to convert a rotary motion of the hinge shaft <NUM> into a linear motion of the first fixing plate <NUM>.

The first crank <NUM> includes a first adjustment link 326a, a second adjustment link 326b, and a first connection link 326c.

The first adjustment link 326a is rotatably coupled to the hinge shaft <NUM>.

The second adjustment link 326b has a first side rotatably coupled to the first adjustment link 326a, and a second side rotatably coupled to the first fixing plate <NUM>.

The first connection link 326c is rotatably coupled to the first moving plate <NUM> and an intermediate region of the first adjustment link 326a.

The second crank <NUM> is rotatably connected to the second fixing plate <NUM> and the hinge shaft <NUM> to convert a rotary motion of the hinge shaft <NUM> into a linear motion of the second fixing plate <NUM>.

The second crank <NUM> includes a third adjustment link 327a, a fourth adjustment link 327b, and a second connection link 327c.

The third adjustment link 327a is rotatably coupled to the hinge shaft <NUM>. The third adjustment link 327a is disposed opposite to the first adjustment link 326a at an angle of <NUM> degrees.

The fourth adjustment link 327b has a first side rotatably coupled to the third adjustment link 327a, and a second side rotatably coupled to the second fixing plate <NUM>. The fourth adjustment link 327b is disposed opposite to the second adjustment link 326b.

The second connection link 327c is rotatably coupled to the second moving plate <NUM> and an intermediate region of the third adjustment link 327a. The second connection link 327c is disposed opposite to the first connection link 326c.

Meanwhile, reciprocating movement of the first moving plate <NUM> is guided by a pair of first guide rods 329a extending in length from the first fixing plate <NUM> toward the first moving plate <NUM>. In addition, reciprocating movement of the first moving plate <NUM> is guided by a pair of third guide rods 329c extending in length from the hinge shaft <NUM> toward the first moving plate <NUM>. Here, in this embodiment, it is illustrated that the first guide rods 329a and the third guide rods 329c are provided in pairs, respectively, but the present disclosure is not limited thereto. For example, at least one first guide rod 329a and at least one third guide rod 329c may be provided.

In addition, reciprocating movement of the second moving plate <NUM> is guided by a pair of second guide rods 329b extending in length from the second fixing plate <NUM> toward the second moving plate <NUM>. In addition, reciprocating movement of the second moving plate <NUM> is guided by a pair of third guide rods 329c extending in length from the hinge shaft <NUM> toward the second moving plate <NUM>. Here, in this embodiment, it is illustrated that the second guide rods 329b and the third guide rods 329c are provided in pairs, respectively, but the present disclosure is not limited thereto. For example, at least one second guide rod 329b and at least one third guide rod 329c may be provided.

According to the configuration as described above, in the distance adjustment part of the rehabilitation exercise device <NUM> according to the present disclosure, as illustrated in <FIG>, by implementing the slide-crank mechanism in which the first fixing plate <NUM> and the first moving plate <NUM>, and the second fixing plate <NUM> and the second moving plate <NUM> are operated in conjunction with each other, respectively, so as to be mutually approached or spaced apart with respect to the hinge shaft <NUM>, it is possible to adjust the length of the second support <NUM>, thereby adjusting the distance between the first support <NUM> and the third support <NUM>.

Hereinafter, in order to help the understanding of the present disclosure, the adjustment of the length of the second support <NUM> will be described in detail with reference to <FIG>.

In <FIG>, when the first adjustment link 326a and the second adjustment link 326b are pivoted clockwise around the hinge shaft <NUM>, the angle between the first adjustment link 326a and the second adjustment link 326b and the angle between the first adjustment link 326a and the first connection link 326c increase, so that the distance between the hinge shaft <NUM> and the first fixing plate <NUM> is increased. Similarly, the angle between the third adjustment link 327a and the fourth adjustment link 327b, and the angle between the third adjustment link 327a and the second connection link 327c increase to the same angle as that between the first adjustment link 326a and the second adjustment link 326b, so that the distance between the hinge shaft <NUM> and the second fixing plate <NUM> is increased. Consequently, the first fixing plate <NUM> and the second fixing plate <NUM> are spaced apart from each other by equal distances from the hinge shaft <NUM>.

On the contrary, in <FIG>, when the first adjustment link 326a and the second adjustment link 326b are pivoted counterclockwise around the hinge shaft <NUM>, the angle between the first adjustment link 326a and the second adjustment link 326b and the angle between the first adjustment link 326a and the first connection link 326c decrease, so that the distance between the hinge shaft <NUM> and the first fixing plate <NUM> is decreased. Similarly, the angle between the third adjustment link 327a and the fourth adjustment link 327b, and the angle between the third adjustment link 327a and the second connection link 327c decreased to the same angle as that between the first adjustment link 326a and the second adjustment link 326b, so that the distance between the hinge shaft <NUM> and the second fixing plate <NUM> is decreased. Consequently, the first fixing plate <NUM> and the second fixing plate <NUM> are approached to each other by equal distances from the hinge shaft <NUM>.

Therefore, in the rehabilitation exercise device <NUM> according to the present disclosure, the first fixing plate <NUM> and the first moving plate <NUM>, and the second fixing plate <NUM> and the second moving plate <NUM> are operated in conjunction with each other, respectively, so as to be mutually approached or spaced apart with respect to the hinge shaft <NUM>.

Meanwhile, the first fixing plate <NUM> and the second fixing plate <NUM> are connected to each other by a pair of connection bars <NUM>.

In the present disclosure, a side of each of the connection bars <NUM> is fixed to the second fixing plate <NUM>, and the first fixing plate <NUM> is movably coupled to the connection bars <NUM>, so that the first fixing plate <NUM> is approached to and spaced apart from the second fixing plate <NUM>.

A through-hole 322a (see <FIG>) for allowing passage of each of the connection bars <NUM> therethrough may be formed in the first fixing plate <NUM>, so that longitudinal movement of the first fixing plate <NUM> may be guided along the connection bar <NUM>.

In addition, a length stopper <NUM> may be installed on the first fixing plate <NUM> to restrain the longitudinal movement of the first fixing plate <NUM>, for example, to limit relative movement of the first fixing plate <NUM> and the second fixing plate <NUM>. In the present disclosure, as an example, a pair of length stoppers <NUM> are installed on the pair of connection bars <NUM>, respectively.

<FIG> is a sectional view illustrating the region of the length stopper <NUM> according to the present disclosure. Referring to <FIG>, the length stopper <NUM> may include a restraining lever <NUM> and a pressurizing member <NUM>.

The restraining lever <NUM> is rotatably installed on a rotary shaft 322b coupled to the first fixing plate <NUM>.

The restraining lever <NUM> includes a pusher <NUM> provided at a first end thereof to pressurize or release the pressurizing member <NUM>, and a knob <NUM> provided at a second end thereof to rotate the pusher <NUM> to allow the pusher <NUM> to pressurize or release the pressurizing member <NUM>.

The pusher <NUM> has a semicircular arc shape having a predetermined radius of curvature, and is configured to be brought into contact with and spaced apart from the pressurizing member <NUM> by rotation.

Therefore, in <FIG>, when the restraining lever <NUM> is rotated clockwise around the rotary shaft 322b, the pusher <NUM> is rotated toward the pressurizing member <NUM> to be brought into contact with the pressurizing member <NUM> and to pressurize the pressurizing member <NUM>, and the pressurizing member <NUM> pressurizes the connection bar <NUM> passing through the through-hole 322a to prevent the first fixing plate <NUM> from moving in the longitudinal direction. On the other hand, when the restraining lever <NUM> is rotated counterclockwise around the rotary shaft 322b, the pusher <NUM> is spaced from the pressurizing member <NUM> and releases the pressurizing member <NUM>, so that the connection bar <NUM> is allowed to be moved inside the through-hole 322a, thereby allowing the movement of the first fixing plate <NUM> in the longitudinal direction along the connection bar <NUM>.

Here, in this embodiment, it is illustrated that a side of the connection bar <NUM> is fixed to the second fixing plate <NUM>, and the first fixing plate <NUM> is movably coupled to the connection bar <NUM>, but the present disclosure is not limited thereto. For example, the side of the connection bar <NUM> may be fixed to the first fixing plate <NUM>, and the second fixing plate <NUM> may be movably coupled to the connection bar <NUM>. In this case, the restraining lever <NUM> is provided on the second fixing plate <NUM>.

<FIG> are views illustrating an example of a structure for restraining longitudinal movement of a second support <NUM> according to another embodiment of the present disclosure. A rehabilitation exercise unit <NUM> according to the other embodiment of the present disclosure may include a rotation stopper <NUM> provided on a hinge shaft <NUM> to limit relative movement of a first fixing plate <NUM> and a second fixing plate <NUM>.

As described above, the second support <NUM> according to the present disclosure has a slide-crank structure in adjusting a longitudinal length thereof, which includes rotation of the hinge shaft <NUM>. The rotation stopper <NUM> restrains the rotation of the hinge shaft <NUM> to maintain a predetermined length.

The rotation stopper <NUM> includes a restraining dial <NUM>, a shaft body <NUM> for forming the hinge shaft <NUM>, a shaft column <NUM> protruding upward from the shaft body <NUM>, and a shaft plate <NUM> rotated around the shaft body <NUM> and connected to the first adjustment link 326a and the third adjustment link 327a to rotate the first adjustment link 326a and the third adjustment link 327a with respect to the shaft body <NUM>.

The restraining dial <NUM> includes a restraining pin 351a and a catching recess 351c.

The restraining pin 351c is formed by protruding from an end of the restraining dial <NUM> oriented toward the shaft body <NUM>, and is inserted into or released from any one selected from among a plurality of restraining holes 352a which will be described later.

The catching recess 351c is depressed in a region of the end of the restraining dial <NUM> oriented toward the shaft body <NUM>, at a position spaced from the restraining pin 351a. In this embodiment, a pair of catching recesses 351c are provided opposite to each other.

The plurality of restraining holes 352a are formed in the shaft body <NUM> at a predetermined interval along the circumferential direction of the shaft column <NUM>.

The shaft plate <NUM> has a circular ring shape. The shaft plate <NUM> is configured such that the first adjustment link 326a and the third adjustment link 327a are connected to an outer circumference thereof, and the restraining dial <NUM> is rotatably provided on an inner circumference thereof. In addition, the shaft plate <NUM> has a pair of catching protrusions 352b protruding from a region of the inner circumference thereof, and connecting the restraining dial <NUM> to the shaft plate <NUM> by being caught by the catching recesses 351c of the restraining dial <NUM>.

In addition, the rotation stopper <NUM> according to the present disclosure may further include an elastic member <NUM>.

The elastic member <NUM> is provided between the shaft column <NUM> and the restraining dial <NUM>, and generates elastic force acting on the restraining dial <NUM> so that the restraining pin 351a is inserted into the selected restraining hole 352a.

When a user wants to adjust the length of the second support <NUM>, the user adjusts the length by pulling the restraining dial <NUM> upward so that the restraining dial <NUM> ascends from the shaft body <NUM> to a position where the restraining pin 351a is separated from the restraining hole 352a. Then, when the second support <NUM> is adjusted to a desired length, the user releases the restraining dial <NUM> so that the restraining dial <NUM> descends toward the shaft body <NUM> by the elastic force of the elastic member <NUM>, and at the same time, the restraining pin 351a is inserted into the restraining hole 352a at a corresponding position.

With this configuration, in the rotation stopper <NUM> according to the present disclosure, when the restraining pin 351a is inserted into the restraining hole 352a, the shaft plate <NUM> is not rotated with respect to the shaft body <NUM>, so that the length of the second support <NUM> is not allowed to be adjusted. At the same time, the catching protrusions 352b of the shaft plate <NUM> are caught by the catching recesses 351c of the restraining dial <NUM>, so that the restraining dial <NUM> is prevented from being rotated around the shaft column <NUM>.

On the other hand, in the rotation stopper <NUM> according to the present disclosure, when the dial pin 351a is released from the restraining hole 352a, the shaft plate <NUM> is rotated with respect to the shaft body <NUM>, so that the length of the second support <NUM> is allowed to be adjusted. At this time, the catching protrusions 352b of the shaft plate <NUM> are maintained caught by the catching recesses 351c of the restraining dial <NUM>, so that the restraining dial <NUM> is maintained in a state connected to the shaft plate <NUM>. Thus, the restraining dial <NUM> is allowed to be rotatable forward and backward around the shaft column <NUM>, so that the first fixing plate <NUM> and the second fixing plate <NUM> are mutually approached or spaced apart with respect to the shaft body <NUM>, thereby adjusting the length of the second support <NUM>.

In <FIG>, reference numeral 351b denotes a pin insertion portion into which the restraining pin 351a is inserted and fixed, and reference numeral 351d denotes a shaft through-hole through which the shaft column <NUM> passes and fixed. For convenience of explanation, <FIG> illustrates a state in which the restraining pin 351a is inserted in the restraining hole 352a in a state of being released from the restraining dial <NUM>.

As such, by implementing a slide-crank mechanism in which the first fixing plate <NUM> and a first moving plate <NUM>, and the second fixing plate <NUM> and a second moving plate <NUM> are operated in conjunction with each other, respectively, so as to be mutually approached or spaced apart with respect to the hinge shaft <NUM>, it is possible to adjust the length of the second support <NUM>, thereby adjusting the distance between the first support <NUM> and the third support <NUM> in response to various lengths of the forearm or calf of the user during rehabilitation.

Hereinafter, the configuration of the holder <NUM> according to the present disclosure will be described in detail with reference to <FIG>.

As described above, the holder <NUM> may include the base plate <NUM>, the mounting plate <NUM>, and the link member <NUM>. According to this configuration, a link mechanism as illustrated in <FIG> is implemented.

As described above, the opposite sides of the link member <NUM> are rotatably coupled to the base plate <NUM> and the mounting plate <NUM>, respectively. Here, the first side (i.e., in the direction of the first support <NUM>) of the mounting plate <NUM> is coupled to the base plate <NUM> to be horizontally movable along the plate surface thereof, and the first side of the link member <NUM> is rotatably coupled to the intermediate region of the mounting plate <NUM>. In addition, a second side of the mounting plate <NUM> is approached to and spaced apart from the base plate <NUM> in the vertical direction by the link mechanism, so that angle adjustment is implemented as illustrated in <FIG> and <FIG>.

The second side of the link member <NUM> is rotatably coupled to a fixing shaft <NUM> provided on the base plate <NUM>, so that when the first side of the mounting plate <NUM> moves in the horizontal direction, the angle of the mounting plate <NUM> is adjusted by rotation of the opposite sides of the link member <NUM>.

Meanwhile, a pair of extension brackets <NUM> are installed opposite at the first side of the mounting plate <NUM> by extending parallel toward the third support <NUM>. First ends of the pair of extension brackets <NUM>, for example, first ends thereof oriented toward the first support <NUM>, are rotatably coupled to the mounting plate <NUM>. Second ends of the pair of extension brackets <NUM>, for example, second ends thereof oriented toward the third support <NUM>, are connected to each other by a connection rod <NUM>.

In addition, a catching plate <NUM> is installed inside the base plate <NUM>, with a plurality of catching protrusions <NUM> formed thereon along the longitudinal direction and allowing the connection rod <NUM> to be caught thereby in response to the angle between the mounting plate <NUM> and the base plate <NUM>. The plurality of catching protrusions <NUM> are formed at a predetermined interval along the longitudinal direction of the pair of extension brackets <NUM>, so that the connection rod <NUM> is selectively caught by the catching protrusions <NUM>. Thus, in response to an inclination angle between the mounting plate <NUM> and the base plate <NUM>, the connection rod <NUM> is caught by any one of the catching protrusions <NUM>, so that the inclination angle is maintained at a predetermined angle.

In addition, the holder <NUM> according to the present disclosure may include a fixing unit <NUM> for fixing the connection rod <NUM> to maintain the connection rod <NUM> caught by any one of the catching protrusions <NUM>.

The fixing unit <NUM> may include a pair of unit bodies <NUM>, a pair of operating levers <NUM>, a pair of interlocking levers <NUM>, and a pair of interlocking brackets 522a, as shown in <FIG> and <FIG>.

The unit bodies <NUM> are reciprocally moved along the base plate <NUM> in conjunction with the connection rod <NUM> in response to adjustment of the angle between the base plate <NUM> and the mounting plate <NUM>.

The operating levers <NUM> are provided outside the base plate <NUM>, and are rotatably coupled to the unit bodies <NUM>.

The interlocking levers <NUM> are provided inside the base plate <NUM>, and are rotatably coupled to the unit bodies <NUM> so as to be rotated in conjunction with rotation of the operating levers <NUM>.

The interlocking brackets 522a are provided on opposite edges of the connection rod <NUM> to be oriented toward the interlocking levers <NUM>, and are pressurized or released in response to rotation of the interlocking levers <NUM>. The interlocking brackets 522a are connected to the connection rod <NUM> by connecting brackets 522b.

With this configuration, as illustrated in <FIG>, when the operating levers <NUM> are rotated clockwise, the interlocking levers <NUM> are rotated clockwise, so that the connecting brackets 522b are pressurized downward by the interlocking levers <NUM>. Therefore, the connection rod <NUM> is limited from being moved upward, and thus the connection rod <NUM> is prevented from being released from the catching protrusion <NUM> of the base plate <NUM>.

On the other hand, in performing an operation of folding or unfolding the mounting plate <NUM> to adjust the angle of the mounting plate <NUM> with respect to the base plate <NUM>, as illustrated in <FIG>, when the operating levers <NUM> are rotated counterclockwise, the interlocking levers <NUM> are rotated counterclockwise to allow lifting of upper ends of the interlocking brackets 522a, so that the connection rod <NUM> is released from the catching protrusion <NUM>, allowing the mounting plate <NUM> to be folded or unfolded.

Therefore, by removing or fixing the connection rod <NUM> from or into the catching protrusion <NUM> through the operation of the operating levers <NUM> outside the base plate <NUM>, a safety accident that may occur due to an operation of lifting the connection rod <NUM> by inserting a hand between the mounting plate <NUM> and the base plate <NUM> is prevented from occurring.

In addition, by releasing the connection rod <NUM> from the catching protrusion <NUM>, as illustrated in <FIG>, in a state in which the mounting plate <NUM> is folded to the base plate <NUM>, upper limb rehabilitation exercise is performed. In addition, by fixing the connection rod <NUM> to the catching protrusion <NUM>, as illustrated in <FIG>, in a state in which the mounting plate <NUM> is erected from the base plate <NUM> at a predetermined angle, lower limb rehabilitation exercise is performed.

In addition, in response to the condition of the rehabilitation patient, rehabilitation exercise is performed by simply adjusting a mounting angle of the upper or lower limb with respect to the base plate <NUM> seated on the floor.

Meanwhile, <FIG> and <FIG> illustrate a fixing unit 540a having a different shape from the fixing unit <NUM> described above.

Unlike the above-described fixing units <NUM>, in the fixing unit 540a according to another embodiment of the present disclosure, a plurality of auxiliary catching protrusions <NUM> are formed on a side of the base plate <NUM> along the longitudinal direction of the base plate <NUM>, for example, in a parallel relationship to the plurality of catching protrusions <NUM>.

The plurality of auxiliary catching protrusions <NUM> have a continuous wave shape with valleys and ridges, and are arranged at the same pitch as the plurality of catching protrusions <NUM>. A unit body <NUM> is selectively mounted on the plurality of auxiliary catching protrusions <NUM>.

In addition, on the side of the base plate <NUM> where the plurality of auxiliary catching protrusions <NUM> are formed, a plurality of catching pins <NUM> are provided at positions corresponding to the valleys of the auxiliary catching protrusions <NUM>.

The plurality of catching pins <NUM> are arranged at the same pitch as the auxiliary catching protrusions <NUM>, and protrude from the side of the base plate <NUM>.

In addition, in the fixing unit 540a according to another embodiment of the present disclosure, an interlocking lever 543a rotated in conjunction with rotation of an operating lever <NUM> has a ring-shaped free end.

The interlocking lever 543a is provided outside the base plate <NUM>, and is rotatably coupled to the unit body <NUM>.

As the interlocking lever 543a is rotated in conjunction with rotation of the operating lever <NUM>, the interlocking lever 543a is caught by or released from a selected catching pin <NUM>.

In addition, the unit body <NUM> is connected to the connection rod <NUM> by a connecting bracket 522b.

With this configuration, as illustrated in <FIG> and <FIG>, in a state in which the connection rod <NUM> is caught by the catching protrusion <NUM>, the operating lever <NUM> is located perpendicular to the base plate <NUM>. At this time, since the interlocking lever 543a is caught by the catching pin <NUM>, the connection rod <NUM> is limited from being moved upward, and thus the connection rod <NUM> is prevented from being released from the catching protrusion <NUM> of the base plate <NUM>.

On the other hand, in performing an operation of folding or unfolding the mounting plate <NUM> to adjust the angle of the mounting plate <NUM> with respect to the base plate <NUM>, when the operating lever <NUM> is rotated counterclockwise, the interlocking lever 543a is rotated counterclockwise and released from the catching pin <NUM> to allow lifting of operating lever <NUM>, so that the connection rod <NUM> is released from the catching protrusion <NUM>, allowing the mounting plate <NUM> to be folded or unfolded.

Therefore, by removing or fixing the connection rod <NUM> from or into the catching protrusion <NUM> through the operation of the operating lever <NUM> outside the base plate <NUM>, in response to the condition of the rehabilitation patient, rehabilitation exercise is performed by simply adjusting the mounting angle of the upper or lower limb with respect to the base plate <NUM> seated on the floor.

Meanwhile, in the rehabilitation exercise device <NUM> according to the present disclosure, the drive module <NUM> may be selectively couple to any one of the pair of first hinges <NUM> and <NUM> and the pair of second hinges <NUM> and <NUM>. For example, in the case of the upper limb, when the drive module <NUM> is mounted on any one of the first hinges <NUM> and <NUM>, wrist rehabilitation exercise is possible. On the other hand, when the drive module <NUM> is mounted on any one of the second hinges <NUM> and <NUM>, elbow joint rehabilitation exercise is possible.

At this time, in the case of the pair of first hinges <NUM> and <NUM>, a mounting position of the drive module <NUM> may be determined according to rehabilitation of a left or right upper limb. Similarly, in the case of the pair of second hinges <NUM> and <NUM>, the drive module <NUM> may be selectively mounted according to rehabilitation of a right or left upper limb.

Herein, when the wrist motion is performed in the state that the drive module <NUM> is couple to the first hinge <NUM> or <NUM>, that is, when the first support <NUM> and the second support <NUM> are relatively rotated to each other, the second support <NUM> and the third support <NUM> need to be maintained fixed angle.

In addition, as illustrated in <FIG>, the rehabilitation exercise device <NUM> according to the present disclosure may include an angle adjustment part <NUM> for adjusting an angle between the second support <NUM> and the third support <NUM>.

The angle adjustment part <NUM> includes a pair of rotary plates <NUM>, a plurality of fixing holes <NUM>, an angle fixing lever <NUM>, a pair of first transmission links <NUM>, and a pair of second transmission links <NUM>.

The pair of rotary plates <NUM> have a disc shape, are provided integrally with the third support <NUM> so as to be rotated independently of the pair of second hinges <NUM> and <NUM>, and are shafted to the pair of second hinges <NUM> and <NUM>. Therefore, the second hinges <NUM> and <NUM> of the rehabilitation exercise device <NUM> according to the present disclosure are rotated independently of the third support <NUM>, and the second support <NUM> is coupled to the second hinges <NUM> and <NUM> to be rotatable relative thereto. The second hinges <NUM> and <NUM> are fixed to the mounting plate <NUM>.

The plurality of fixing holes <NUM> are formed at a predetermined interval along the circumferential direction of each of the rotary plates <NUM>. The plurality of fixing holes <NUM> are inclined at a predetermined angle with respect to the radial direction of the rotary plate <NUM> in consideration of the radius of rotation of the second transmission links <NUM> rotated in response to the operation of the angle fixing lever <NUM> which will be described later.

The angle fixing lever <NUM> is provided between the pair of second hinges <NUM> and <NUM>, and is reciprocally moved relative to the first support <NUM>. As illustrated in <FIG>, the angle fixing lever <NUM> is located under the third support <NUM>.

The pair of first transmission links <NUM> are rotatably coupled to opposite sides of the angle fixing lever <NUM>, respectively.

A first side of each of the pair of second transmission links <NUM> is rotatably coupled to an associated one of the pair of first transmission links <NUM>, and a second side of each of the pair of second transmission links <NUM> is selectively inserted into or released from a selected fixing hole <NUM>, so that rotation of the pair of rotary plates <NUM> are restrained or released.

With this configuration, when the angle fixing lever <NUM> is moved in a direction opposite to the first support <NUM>, as illustrated in <FIG>, the respective second sides of the second transmission links <NUM> are rotated inward of the second hinges <NUM> and <NUM> and released from the respective selected fixing holes <NUM>, so that the angle between the second support <NUM> and the third support <NUM> is released.

On the other hand, when the angle fixing lever <NUM> is moved in a direction toward the first support <NUM>, as illustrated in <FIG>, the second sides of the second transmission links <NUM> are rotated outward of the second hinges <NUM> and <NUM> and inserted into the selected fixing holes <NUM>, so that the angle between the second support <NUM> and the third support <NUM> is fixed.

Here, <FIG> illustrates a position where the angle is fixed, and <FIG> illustrates a position where the angle is released. An elastic member <NUM>, such as a spring, may be provided on the angle fixing lever <NUM> to pressurize the angle fixing lever <NUM> to the position where the angle is fixed.

The elastic member <NUM> generates an elastic force acting on the angle fixing lever <NUM> so that the second transmission links <NUM> are inserted into the selected fixing holes <NUM>.

Therefore, in a state in which the second support <NUM> and the third support <NUM> are horizontally fixed as illustrated in <FIG>, when the user pulls the angle fixing lever <NUM> in a direction opposite to the first support <NUM> to allow the second transmission links <NUM> to be released from the fixing holes <NUM>, rotates the third support <NUM> at a desired angle with respect to the second support <NUM>, and then releases the angle fixing lever <NUM>, as the angle fixing lever <NUM> is moved toward the first support <NUM> by the elastic force of the elastic member <NUM>, the second transmission links <NUM> are inserted into the selected fixing holes <NUM>, so that as illustrated in <FIG>, the third support <NUM> is fixed at the desired angle with respect to the second support <NUM> at a corresponding position.

Meanwhile, the rotary plate <NUM> may have a first rotation guide hole <NUM> and a second rotation guide hole <NUM> formed in a semicircular arc shape along the circumferential direction. The first rotation guide hole <NUM> and the second rotation guide hole <NUM> may have semicircular arc shapes facing each other with the rotation center of each of the second hinges <NUM> and <NUM> interposed therebetween.

Here, a first rotation guide protrusion 331a and a second rotation guide protrusion 331b protruding from each of the second hinges <NUM> and <NUM> are inserted into and moved along the first rotation guide hole <NUM> and the second rotation guide hole <NUM>, so that rotation between the second support <NUM> and the third support <NUM> is guided around the second hinges <NUM> and <NUM>. At this time, the rotation angle between the second support <NUM> and the third support <NUM> may be restrained within a range of about <NUM> degrees by the semicircular arc-shaped first rotation guide hole <NUM> and second rotation guide hole <NUM>.

As such, in response to various angles between the forearm and the upper arm or between the calf and the thigh according to the condition of the rehabilitation patient, rehabilitation is performed by adjusting the angle between the second support <NUM> and the third support <NUM>.

Hereinafter, the drive module <NUM> according to the present disclosure will be described in detail with reference to <FIG>.

As described above, the drive module <NUM> is selectively mounted on any one of the pair of first hinges <NUM> and <NUM> and the pair of second hinges <NUM> and <NUM> to pivot the first support <NUM> or the second support <NUM>.

The drive module <NUM> may include a body housing <NUM> in which components such as a drive motor, a printed circuit board, etc. are accommodated, a drive shaft <NUM> to which a rotary shaft of the drive motor is connected, and a ring member <NUM> for allowing mounting and fixing of the drive module <NUM> on the first hinges <NUM> and <NUM> or the second hinges <NUM> and <NUM>.

In addition, a ring coupling portion <NUM> is formed on each of the first hinges <NUM> and <NUM> or each of the second hinges <NUM> and <NUM>.

Meanwhile, in this embodiment, the drive module <NUM> is mounted on the second hinge <NUM> located on the right side as viewed from the first support <NUM> to the third support <NUM> in <FIG>. Therefore, for convenience of explanation, the second hinge <NUM> located on the right side is hereinafter referred to as a right second hinge <NUM>.

Here, a plurality of mounting protrusions <NUM> are formed on an inside of the ring member <NUM> at a predetermined interval along the circumferential direction of the ring member <NUM>, and a ring coupling portion <NUM> to which the ring member <NUM> of the drive module <NUM> is coupled is provided circumferentially around an opening of the right second hinge <NUM>. A plurality of catching portions <NUM> may be formed in the ring coupling portion <NUM> corresponding to the mounting protrusions <NUM>.

Thus, when the drive module <NUM> is inserted into the right second hinge <NUM> and then the ring member <NUM> is rotated, the mounting protrusions <NUM> are rotated and caught by the catching portions <NUM>, so that the drive module <NUM> is prevented from being released.

In addition, a catching lever <NUM> is provided on the body housing 710a to restrain rotation of the ring member <NUM> by being inserted into the ring member <NUM>, so that after rotating the ring member <NUM>, the catching lever <NUM> is pushed and inserted into the ring member <NUM> to thereby prevent rotation of the ring member <NUM>.

In addition, the right second hinge <NUM> includes a hinge shaft 760a with which a drive shaft 720a of the drive module <NUM> is meshed.

As illustrated in FIGS. 33A and 33B, the drive shaft 720a and the hinge shaft 760a respectively include pluralities of jaws 720b and 760b that circumferentially alternately protrude to face each other.

The respective jaws 720b and 760b of the driving shaft 720a and the hinge shaft 760a are meshed with each other, so that a rotational force of the drive module <NUM> is transmitted to the right second hinge <NUM> through the hinge shaft 760b. Here, the hinge shaft 760a of the right second hinge <NUM> is connected to the second support <NUM>.

In addition, any one of the drive shaft 720a and the hinge shaft 760a includes an elastic member 765a, such as a spring, for generating an elastic force acting on the remaining opposite one to be pressurized, so that the drive shaft 720a and the hinge shaft 760a are firmly connected to each other.

In addition, each of the jaws 720b and 760b of the drive shaft 720a and the hinge shaft 760a is configured such that opposite sides thereof are inclined, so that the drive shaft 720a and the hinge shaft 760a are easily coupled to each other even when slight misalignment occurs during initial coupling.

As such, the rehabilitation exercise device <NUM> according to the present disclosure allows the drive module <NUM> to be easily mounted on and removed from a desired hinge, thereby enabling the user to perform a rehabilitation exercise with improved convenience.

Meanwhile, as illustrated in <FIG>, a rotation restraining part <NUM> may be provided to restrain rotation of the first hinges <NUM> and <NUM> or the second hinges <NUM> and <NUM>.

In this embodiment, since the drive module <NUM> is mounted on the right second hinge <NUM>, the rotation restraining part <NUM> is provided on each of the pair of first hinges <NUM> and <NUM>.

The rotation restraining part <NUM> may include a rotary gear plate <NUM> rotated in conjunction with any one of the first support <NUM> and the second support <NUM>, and a gear restraining member <NUM> installed on any one of the first support <NUM> and the second support <NUM>.

The rotary gear plate <NUM> may have gear teeth circumferentially formed along an end thereof, and the gear restraining member <NUM> may also have gear teeth formed at an end thereof. Thus, rotation of the first support <NUM> and the second support <NUM> may be restrained such that when the gear restraining member <NUM> is meshed with the rotary gear plate <NUM> as illustrated in <FIG>, the rotary gear plate <NUM> is not rotated, and when the gear restraining member <NUM> is released from the rotary gear plate <NUM> as illustrated in <FIG>, the rotary gear plate <NUM> is rotated.

The above structure is applicable equally to the second hinges <NUM> and <NUM>.

By this configuration, as illustrated in <FIG>, When the drive module <NUM> is mounted on the right second hinge <NUM>, and the gear restraining member <NUM> and the rotary gear plate <NUM> of each of the pair of first hinges <NUM> and <NUM> are meshed with each other so that the pair of first hinges <NUM> and <NUM> are not rotated, the second support <NUM> performs a pivoting motion by a rotational force of the drive module <NUM>, whereas the first support <NUM> is limited in pivoting motion, so that the user can exercise an elbow joint while a wrist joint is not moved.

In another embodiment, when the drive module <NUM> is mounted on the right first hinge <NUM>, and the gear restraining member <NUM> and the rotary gear plate <NUM> of each the pair of second hinges <NUM> and <NUM> are meshed with each other so that the pair of second hinges <NUM> and <NUM> are not rotated, the first support <NUM> performs a pivoting motion by a rotational force of the drive module <NUM>, whereas the second support <NUM> is limited in pivoting motion, so that the user can exercise the wrist joint while the elbow joint is not moved.

As such, by enabling the user to distinguish which joint is not to be pivoted by the drive module <NUM> and then to operate the gear restraining member <NUM> and the rotary gear plate <NUM> of a corresponding hinge associated with the joint, the user can selectively perform wrist joint or elbow joint rehabilitation exercises.

Meanwhile, the rehabilitation exercise device <NUM> according to the embodiment of the present disclosure may enable the user to perform rehabilitation by selectively mounting the drive module <NUM> to each hinge in response to a position of the upper or lower limb to be exercised.

For example, when the drive module <NUM> is mounted on the left first hinge <NUM> or the left second hinge <NUM>, the rehabilitation exercise device <NUM> according to the embodiment of the present disclosure is worn on a right upper limb to exercise, without causing interference of the drive module <NUM> with a user's torso. In this case, when the drive module <NUM> is mounted on the left first hinge <NUM>, exercise of a right wrist joint is possible. On the other hand, when the drive module <NUM> is mounted on the left second hinge <NUM>, exercise of a right elbow joint is possible.

When the drive module <NUM> is mounted on the right first hinge <NUM> or the right second hinge <NUM>, the rehabilitation exercise device <NUM> according to the embodiment of the present disclosure is worn on a left upper limb to exercise, without causing interference of the drive module <NUM> with the user's torso. In this case, when the drive module <NUM> is mounted on the right first hinge <NUM>, exercise of a left wrist joint is possible. On the other hand, when the drive module <NUM> is mounted on the right second hinge <NUM>, exercise of a left elbow joint is possible.

In addition, as illustrated in <FIG>, a tag <NUM> may be installed on each of the first hinges <NUM> and <NUM> and the second hinges <NUM> and <NUM> at a position where tagging is possible when the drive module <NUM> is coupled to the first hinges <NUM> and <NUM> or the second hinges <NUM> and <NUM>. In addition, a reader <NUM> may be installed in the drive module <NUM>, the reader being capable of tagging the tag <NUM> when the drive module <NUM> is coupled to the first hinges <NUM> and <NUM> or the second hinges <NUM> and <NUM>. Here, the tag <NUM> and the reader <NUM> may communicate with each other through radio frequency (RF) communication or near field communication (NFC).

Thus, even when the drive module <NUM> is mounted on any one of the pair of first hinges <NUM> and <NUM> and the pair of second hinges <NUM> and <NUM>, the position where the drive module <NUM> is mounted is automatically recognized through recognition of the tag <NUM>.

This enables that when the rehabilitation exercise device <NUM> according to the present invention is operated in conjunction with a smart phone, which part of a user's body is to be exercised is automatically recognized by automatically recognizing the mounting position of the drive module <NUM>, and a preset load, a preset amount of exercise, a preset number of exercises, etc. are transmitted to the drive module <NUM> through the smart phone. In the same manner, records of user exercises corresponding parts of the user's body are stored in the smart phone.

Although exemplary embodiments of the present disclosure have been described with reference to the accompanying drawings, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope of the invention as defined in the appended claims. Thus, the above-described exemplary embodiments are intended to be illustrative in all respects, rather than restrictive, of the present disclosure.

Claim 1:
A rehabilitation exercise device (<NUM>) for upper and lower limbs, the rehabilitation exercise device (<NUM>) comprising:
a first support (<NUM>) supporting a user's hand or foot;
a second support (<NUM>) supporting a user's forearm or calf;
a pair of first hinges (<NUM>) rotatably connecting the first support (<NUM>) and the second support (<NUM>) to each other;
a third support (<NUM>) supporting a user's upper arm or thigh;
a pair of second hinges (<NUM>) rotatably connecting the second support (<NUM>) and the third support (<NUM>) to each other; and
a distance adjustment part configured to adjust a distance between the first support (<NUM>) and the third support (<NUM>) by adjusting length of the second support (<NUM>),
wherein the second support (<NUM>) comprises:
a first fixing plate (<NUM>) connected to the pair of first hinges (<NUM>) to be rotatably coupled to the first support (<NUM>);
a second fixing plate (<NUM>) connected to the pair of second hinges (<NUM>) to be rotatably coupled to the third support (<NUM>), and configured to be mutually approached or spaced apart with respect to the first fixing plate (<NUM>) by the distance adjustment part;
a hinge shaft (<NUM>) provided between the first fixing plate (<NUM>) and the second fixing plate (<NUM>);
a first moving plate (<NUM>) provided between the first fixing plate (<NUM>) and the hinge shaft (<NUM>), and configured to be reciprocally moved therebetween; and
a second moving plate (<NUM>) provided between the second fixing plate (<NUM>) and the hinge shaft (<NUM>), and configured to be reciprocally moved therebetween (<NUM>) , wherein the distance adjustment part comprises:
a first crank (<NUM>) rotatably connected to the first fixing plate (<NUM>) and the hinge shaft (<NUM>), and configured to convert a rotary motion of the hinge shaft (<NUM>) into a linear motion of the first fixing plate (<NUM>); and
a second crank (<NUM>) rotatably connected to the second fixing plate (<NUM>) and the hinge shaft (<NUM>), and is configured to convert the rotary motion of the hinge shaft (<NUM>) into a linear motion of the second fixing plate (<NUM>).