Shoulder training device

Abstract

The present invention relates to a shoulder training device that enables training a trainee in a seated position to move a shoulder joint. The shoulder training device comprises: a seat part on which the trainee can sit; a support part which supports the seat part; a backrest provided on one side or the other side of the seat part in a first direction; and a shoulder movement guide part provided on one side of the seat part in a second direction perpendicular to the first direction, so as to guide the movement of a shoulder on any one side selected from the left side and right side of the trainee, wherein the position of the backrest with respect to the shoulder movement guide part can be altered to the one side or the other side in the first direction.

Description

TECHNICAL FIELD

[0001] The present invention relates to a shoulder training device, and more particularly, to a shoulder training device that enables a trainee to perform training for moving a shoulder joint in a sitting posture.BACKGROUND ART

[0002] A shoulder joint has the ability to move in all three dimensions. Anatomically, the shoulder joint belongs to the category of ball and socket joints. However, in reality, since the shoulder joint is less fixed by bones and is stabilized by muscles and ligaments, the shoulder joint is a joint with the greatest range of movement among all joints in the human body. The movement of the shoulder joint provides flexion, extension, abduction, adduction, external rotation, and internal rotation of the arm (humerus).

[0003] In general, a shoulder training device is a device designed to assist in rehabilitation training for trainees who suffer from shoulder paralysis or have abnormalities in shoulder joints, shoulder muscle strength, or shoulder muscular endurance. Since most trainees who have difficulty moving their shoulders find it difficult to move their arms on their own, the trainees performed shoulder training by moving their arms along with the movement pattern guided by the shoulder training device while wearing the shoulder training device. The shoulder training device has a movement trajectory due to its unique structure.

[0004] However, in the conventional shoulder training devices, the training device for the left shoulder was separated from the training device for the right shoulder. In order to provide both the left-shoulder training and the right-shoulder training, separate shoulder training devices were required. As a result, if the shoulder training device did not correspond to the shoulder that needed training, the shoulder training could not be performed. In addition, when attempting to be switched to the training of the shoulder at the other side while training a shoulder of any one side of the left and the right sides, there is also the issue that the shoulder training device has to be changed accordingly.

[0005] To address this issue, various attempts have been made, such as including additional joint parts in the shoulder training devices so that each joint part moves the respective shoulder joint. However, the addition of the joint parts may lead to new limitations, such as complicating the structure of the shoulder training device or making it difficult to be worn.

[0006] (Patent Document 1) Korean Patent No. 10-1331071DISCLOSURE OF THE INVENTION TECHNICAL PROBLEM

[0007] The present invention provides a shoulder training device that allows a trainee to selectively train a left shoulder and a right shoulder.TECHNICAL SOLUTION

[0008] A shoulder training device according to an embodiment of the present invention includes: a seat part on which a trainee can sit; a support part configured to support the seat part; a backrest provided at one side or the other side of the seat part in a first direction; and a shoulder movement guide part provided at one side of the seat part in a second direction intersecting the first direction to guide movement of a shoulder of any one side selected from left and right sides of the trainee, wherein the backrest is changeable in position with respect to the shoulder movement guide part toward one side or the other side in the first direction.

[0009] The shoulder training device may further include a plurality of backrest fixing parts, which are provided at the one side and the other sides of the seat part in the first direction, respectively, wherein the backrest may be selectively coupled to and separated from the plurality of backrest fixing parts to change a relative position thereof with respect to the shoulder movement guide part toward the one side or the other side of the seat part in the first direction.

[0010] The shoulder training device may further include a guide movement part configured to move the shoulder movement guide part in the first direction.

[0011] The backrest may be changed in relative position with respect to the shoulder movement guide part according to the selection of the any one side of the left and right sides, and the guide movement part may move the shoulder movement guide part in a direction approaching the backrest.

[0012] The guide movement part may include: a plurality of rail parts extending in the first direction and provided side by side with each other; and a movable body connected to the shoulder movement guide part and movable along the plurality of rail parts.

[0013] The shoulder training device may further include a guide height adjustment part configured to adjust a vertical position of the shoulder movement guide part.

[0014] The guide height adjustment part may include a weight compensation part configured to compensate for a weight of the shoulder movement guide part.

[0015] The shoulder movement guide part may include: an arm fixing part configured to fix at least a portion of an arm of the any one side of the trainee; a vertical movement guide part connected to the arm fixing part to rotate the arm fixing part in a vertical direction so as to perform vertical rotation movement of the shoulder of the any one side; and a horizontal movement guide part connected to the vertical movement guide part and configured to rotate the arm fixing part in a horizontal direction together with the vertical movement guide part so as to perform horizontal rotation movement of the shoulder of the any one side.

[0016] The vertical movement guide part may include a vertical rotation stopper configured to restrict an angle of the vertical rotation of the arm fixing part, and the horizontal movement guide part may include a horizontal rotation stopper configured to restrict an angle of the horizontal rotation of the vertical movement guide part.

[0017] The vertical rotation stopper and the horizontal rotation stopper may be changeable in rotation restriction angle according to the selection of the any one side of the left and right sides.

[0018] The shoulder training device further include a controller configured to control each of the rotation restriction angles of the vertical rotation stopper and the horizontal rotation stopper according to the selection of the any one side to provide a movement pattern corresponding to the shoulder at each side.

[0019] The arm fixing part may include: a fixing member configured to be detachably attached on the arm of the any one side; a first rotation member connected to the fixing member to rotate the fixing member in the horizontal direction; and a second rotation member connected to the first rotation member to rotate the fixing member together with the first rotation member in the vertical direction.

[0020] The arm fixing part may further include a transfer member connected to the fixing member to move the fixing member in a direction intersecting the horizontal direction.

[0021] The shoulder training device may further include a rotation part configured to rotate the backrest around a central axis of the support part.ADVANTAGEOUS EFFECTS

[0022] The shoulder training device according to an embodiment of the present invention may change the position of the backrest with respect to the shoulder movement guide part to one side or the other side in the first direction. Thus, the left shoulder and the right shoulder may be selected to perform the shoulder training, and the shoulder to be trained may be switched (or changed) between the left shoulder and the right shoulder.

[0023] Here, the shoulder movement guide part may move in the first direction to approach the backrest through the guide movement part, and thus, it may be possible to selectively provide the training for both the left and right shoulders regardless of the left shoulder and the right shoulder (or without distinction of the left and right shoulders) with the single shoulder movement guide part.

[0024] In addition, the position of the shoulder movement guide part may be precisely adjusted to the position at which no burden (or discomfort) is transmitted to the shoulders of the trainee (for example, the position at which the rotation center of the trainee's shoulder coincides with the rotation center point of the shoulder movement guide part) through the guide height adjustment part and the guide movement part in response to the body structure (e.g., body size, etc.) and the posture of the trainee, the natural movement pattern (or motion) suitable for the trainee may be provided without imposing the burden on the trainee's shoulders, and the optimal shoulder training that suits the trainee may be performed.

[0025] In addition, the transfer member capable of moving the fixing member in the direction (e.g., a forward and backward direction) intersecting the horizontal direction may be further provided in addition to the first and second rotation members that rotate the fixing member in the horizontal direction and the vertical direction, and thus, the shoulder rotation center (or shoulder joint) of the trainee may match the rotation movement center point (or rotation reference point) of the shoulder movement guide part as much as possible. In addition, even if the rotation center of the trainee's shoulder does not match the rotation center point of the shoulder movement guide part, it may be possible to minimize the burden on the trainee's shoulder and / or other parts (portions) of the body.

[0026] Thus, it may be possible to prevent the unexpected injuries during the training (or rehabilitation treatment) of the shoulder joint and / or arm (or upper limb) muscles of the trainee, and at the same time, the training (or rehabilitation) effect of the trainee through shoulder training may be significantly improved.

[0027] Furthermore, since it is possible to provide the training for each shoulder according to the selection without distinction of the left shoulder and the right shoulder using the single shoulder movement guide part, and since there is no need for the structure of the arm fixing part that includes the plurality of joints, the complexity of the structure of the shoulder training device may be reduced. In addition, as the complexity of the structure is improved, the manufacturing productivity of the shoulder training device may be enhanced, and at the same time, the manufacturing cost may also be reduced.BRIEF DESCRIPTION OF THE DRAWINGS

[0028] FIG. 1 is a view illustrating a shoulder training device according to an embodiment of the present invention. FIG. 2 is a conceptual view for explaining a change in position of a backrest according to an embodiment of the present invention. FIG. 3 is a conceptual view for explaining a guide movement part according to an embodiment of the present invention. FIG. 4 is a view illustrating a guide height adjustment part according to an embodiment of the present invention. FIG. 5 is a conceptual view for explaining vertical position adjustment of a shoulder movement guide part according to an embodiment of the present invention. FIG. 6 is a view illustrating the shoulder movement guide part according to an embodiment of the present invention. MODE FOR CARRYING OUT THE INVENTION

[0029] Hereinafter, specific embodiments will be described in more detail with reference to the accompanying drawings. The present invention may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art. In the descriptions, the same elements are denoted with the same reference numerals. In the figures, the dimensions of layers and zones are exaggerated for clarity of illustration. Like reference numerals refer to like elements throughout.

[0030] FIG. 1 is a view illustrating a shoulder training device according to an embodiment of the present invention.

[0031] Referring to FIG. 1, an shoulder training device 100 according to an embodiment of the present invention may include: a seat part 110 on which a trainee 10 can sit; a support part 120 that supports the seat part 110; a backrest 130 provided at one side or the other side of the seat part 110 in a first direction; and a shoulder movement guide part 140 provided at one side in a second direction intersecting the first direction of the seat part 110 to guide movement of a shoulder of any one side selected from a left side and a right side of the trainee 10.

[0032] The seat part 110 may allow the trainee 10 to sat thereon and may enable shoulder joint training while the trainee 10 is in a sitting posture. For example, the seat part 110 may include the seat part that is in contact with buttocks of the trainee 10 when sitting down.

[0033] The support part 120 may be seated on a bottom surface (e.g., a ground surface) to support the seat part 110. For example, the support part 120 may be vertically installed on the bottom surface, and the seat part 110 may be coupled to (or mounted on) an upper end of the support part 120. As a result, the buttocks of the trainee 10 may be supported to be maintained at a certain height, and thus, the trainee 10 may sit down. The support part 120 may be configured to be movable by a caster wheel or the like.

[0034] The backrest 130 may be provided at one side or the other side of the seat part 110 in the first direction to allow the trainee 10 seated on the seat part 110 to lean against the backrest 130 and may be selectively provided at either one side or the other side in the first direction.

[0035] The shoulder movement guide part 140 may be provided only at one side in a second direction that intersects the first direction of the seat part 110 and may guide movement of the shoulder of either the left or right side of the trainee 10. For example, when one side of the seat part 110 in the second direction, at which the shoulder movement guide part 140 is provided, corresponds to the left side of the trainee 10 who is leaning against the backrest 130, a left arm of the trainee 10 may be fixed to guide the movement of the left shoulder. On the contrary, when one side of the seat part 110 in the second direction corresponds to a right side of the trainee 10 who is leaning against the backrest 130, a right arm of the trainee 10 may be fixed to guide the movement of the right shoulder.

[0036] Here, the backrest 130 may be changed in position to one side or the other side of the first direction with respect to the shoulder movement guide part 140 to switch (or change) the shoulder to be trained between the left shoulder and the right shoulder. In addition, one of the left shoulder and the right shoulder may be selected to perform the shoulder training according to the selection. For example, the backrest 130 may be provided at one side of the seat part 110 in the first direction to train the left shoulder, and the position of the backrest 130 may be changed to the other side of the seat part 110 in the first direction to train the right shoulder. Then, the backrest 130 may be disposed (again) at the one side of the seat part 110 in the first direction to train the left shoulder.

[0037] FIG. 2 is a conceptual view for explaining a change in position of the backrest according to an embodiment of the present invention. (a) of FIG. 2 illustrates a right shoulder training mode, and (b) of FIG. 2 illustrates a left shoulder training mode.

[0038] Referring to FIG. 2, the shoulder training device 100 according to the present invention may further include a plurality of backrest fixing parts 150, which are provided at one side and the other side of the seat part 110 in the first direction, respectively.

[0039] The plurality of backrest fixing parts 150 may be provided at one side and the other side of the seat part 110 in the first direction, respectively, so that the backrest 130 is coupled and separated. For example, the plurality of backrest fixing parts 150 may be installed (or attached) to the seat part 110 and / or the support part 120. Thus, the backrest 130 may be coupled to the backrest fixing part 150 provided at one side of the seat part 110 in the first direction to train one shoulder at either the left or right side. In addition, the backrest 130 may be coupled to the backrest fixing part 150 provided at the other side of the seat part 110 in the first direction to train the other (or remaining) shoulder at either the left or right side.

[0040] Here, the backrest 130 may be selectively coupled to and separated from the plurality of backrest fixing parts 150, so that the relative position of the shoulder movement guide part 140 with respect to the one side or the other side of the seat part 110 in the first direction may be changed. That is, the backrest 130 may be selectively coupled to and separated from the backrest fixing part 150 at the one side of the first direction and the backrest fixing part 150 at the other side of the first direction. Thus, the backrest 130 may move toward the one side or the other side of the seat part 110 in the first direction, and the relative position of the backrest 130 with respect to the shoulder movement guide part 140 at the one side or the other side of the seat part 110 in the first direction may be changed.

[0041] Here, the plurality of backrest fixing parts 150 may include a backrest coupling part 151 into which at least a portion of the backrest 130 is inserted, and a fixing knob 152 that fixes the backrest 130 inserted into the backrest coupling part 151. The backrest coupling part 151 may allow at least a portion of the backrest 130 to be inserted therein, and the fixing knob 152 may fix the backrest 130 inserted into the backrest coupling part 151. Thus, the backrest 130 may be coupled (or fixed) to the backrest fixing part 150. In addition, the backrest 130 may be separated from the backrest coupling part 151 using the fixing knob 152 to separate the backrest 130 from the backrest fixing part 150. As a result, the backrest 130 may be simply changed in position toward the one side or the other side of the first direction relative to the shoulder movement guide part 140, and the shoulder training may be provided for both the left and right shoulders using the single shoulder movement guide part 140.

[0042] FIG. 3 is a conceptual view for explaining a guide movement part according to an embodiment of the present invention. (a) of FIG. 3 illustrates a state in which the shoulder movement guide part is disposed far from the backrest, and (b) of FIG. 3 shows a state in which the shoulder movement guide part is disposed close to the backrest.

[0043] Referring to FIG. 3, the shoulder training device 100 according to the present invention may further include a guide movement part 160 that moves the shoulder movement guide part 140 in the first direction.

[0044] The guide movement part 160 may move the shoulder movement guide part 140 in the first direction and may move the shoulder movement guide part 140 along one side (surface) of the seat part 110 in the second direction. As a result, the shoulder movement guide part 140 may be disposed closer to a shoulder joint (or shoulder rotation center) of the trainee 10.

[0045] Here, the guide movement part 160 may include a plurality of rail parts 161 extending in the first direction and provided side by side with each other, and a movable body 162 connected to the shoulder movement guide part 140 and capable of moving along the plurality of rail parts 161. The plurality of rail parts 161 may extend in the first direction and be provided side by side (or in parallel with each other) and may provide a path through which the movable body 162 moves in the first direction. When the rail part 161 is provided in plurality, the movable body 162 that pulls (or is connected to) the shoulder movement guide part 140 may be prevented from being tilted (or twisted) due to a load (or weight) of the shoulder movement guide part 140 while moving. For example, the plurality of rail parts 161 may be disposed vertically and provided side by side in the first direction. The plurality of rail parts 161 may be attached (or installed) to the seat part 110 and / or the support part 120 so as to be supported (or fixed).

[0046] The movable body 162 may move in the extension direction of the plurality of rail parts 161 (i.e., the first direction) along the plurality of rail parts 161 and may be connected to the shoulder movement guide part 140 to tow the shoulder movement guide part 140, thereby moving the shoulder movement guide part 140 in the first direction.

[0047] The plurality of rail parts 161 may enable the movable body 162 to support (or pull) the shoulder movement guide part 140 without being tilted, and thus, the shoulder movement guide part 140 may move more precisely in the first direction so that the shoulder joint of the trainee 10 and the center point of rotation (or rotation reference point) of the shoulder movement guide part 140 coincide with each other as much as possible.

[0048] Here, the backrest 130 may be changed its relative position with respect to the shoulder movement guide part 140 depending on which side is selected, either the left side or the right side. Furthermore, depending on whether the selected shoulder is the left shoulder or the right shoulder, the backrest 130 may be provided at the one side or the other side in the first direction to change its relative position with respect to the shoulder movement guide part 140. In addition, the guide movement part 160 may move the shoulder movement guide part 140 in a direction approaching the backrest 130 according to whether the backrest 130 is provided at one side in the first direction or at the other side in the first direction. That is, depending on the relative position of the backrest 130 with respect to the shoulder movement guide part 140, the shoulder movement guide part 140 may move in a direction approaching the backrest 130 through the guide movement part 160. Thus, the shoulder movement guide part 140 may move closer to the shoulder joint of the trainee 10, and it may be possible to prevent any burden (or discomfort) from being transmitted to the shoulder of the trainee 10 (as much as possible) while performing the shoulder training.

[0049] For example, when the backrest 130 is provided at the one side of the seat part 110 in the first direction to train the left shoulder (or right shoulder) of the trainee 10, the shoulder movement guide part 140 may move toward the one side in the first direction that approaches the backrest 130 so as to approach the left (or right) shoulder joint of the trainee 10. On the contrary, when the backrest 130 is provided at the other side of the seat part 110 in the first direction to train the right shoulder (or right shoulder) of the trainee 10, the shoulder movement guide part 140 may move toward the other side in the first direction that approaches the backrest 130 so as to approach the right (or left) shoulder joint of the trainee 10.

[0050] Thus, the shoulder training device 100 according to the present invention may selectively provide the training for the left shoulder and the right shoulder regardless of the left shoulder and the right shoulder (or without distinction of the left and right shoulders) with the single shoulder movement guide part 140 by moving the shoulder movement guide part 140 toward the one side or the other side of the first direction so that the shoulder movement guide part 140 is closer to the backrest 130 through the guide movement part 160.

[0051] FIG. 4 is a view illustrating a guide height adjustment part according to an embodiment of the present invention.

[0052] Referring to FIG. 4, the shoulder training device 100 according to the present invention may further include a guide height adjustment part 170 that adjusts a vertical position of the shoulder movement guide part 140.

[0053] The guide height adjustment part 170 may adjust the vertical position (or height) of the shoulder movement guide part 140 and may align the vertical position of the shoulder movement guide part 140 with a height (or vertical position) of the trainee's shoulder joint. The height of the shoulder joint may vary depending on a body structure (e.g., body size, etc.) and / or a posture of the trainee 10. Thus, the vertical position of the shoulder movement guide part 140 may be adjusted to enable the vertical position of the shoulder movement guide part 140 to match the height of the shoulder joint of the trainee 10 (as much as possible).

[0054] For example, it may be necessary to change the position of the shoulder movement guide part 140 to correspond to the shoulder joint (region) depending on the position and direction of the shoulder and / or arm (or upper limb) of the trainee 10. For this purpose, the vertical position of the shoulder movement guide part 140 may be adjusted through the guide height adjustment part 170. Here, the guide movement part 160 may move the shoulder movement guide part 140 in the first direction to adjust the position of the shoulder movement guide part 140 in the first direction. Here, the guide height adjustment part 170 may be connected (or coupled) to the movable body 162 of the guide movement part 160 to move together with the movable body 162 and may support (or couple) the shoulder movement guide part 140. As a result, the shoulder movement guide part 140 may move in the first direction by the guide movement part 160, and the vertical position of the shoulder movement guide part 140 may be adjusted by the guide height adjusting part 170.

[0055] In addition, the guide height adjustment part 170 may include a weight compensation part 175 that compensates for the weight of the shoulder movement guide part 140. The weight compensation part 175 may compensate for the weight of the shoulder movement guide part 140 and may be provided at a lower end of the guide height adjustment part 170. The weight of the shoulder movement guide part 140 may be compensated through the weight compensation part 175 to adjust the vertical position of the shoulder movement guide part 140 without exerting much effort.

[0056] For example, the weight compensation part 175 may include a spring that has elasticity and provides reaction force (or compensation force) against the weight (or load) of the shoulder movement guide part 140, and a spring fixing member that fixes the spring. The spring may have elasticity, may provide elastic force in a vertical direction (or gravity direction), and may support the weight of the shoulder movement guide part 140 by the elastic force. The spring may provide the elastic force (or compensating force) as the reaction force against a pressure (or gravity) caused by the load of the shoulder movement guide part 140, thereby compensating for the weight of the shoulder movement guide part 140.

[0057] The spring fixing member may fix the spring and prevent the spring from being tilted or bent so that the elastic force of the spring is provided only in a direction opposite to the direction of the gravity (i.e., the vertical direction). As a result, the weight of the shoulder movement guide part 140 may be effectively compensated. Here, the spring fixing member may include a seat part on which one end (or lower end) of the spring is supported (or seated), and an extension part extending vertically (or in the vertical direction) from the seat part. The seat part may provide a bottom surface (or seating surface) on which the spring is seated (or supported), and the extension part may be configured as a protruding pillar extending from a center of the seat part and inserted into the center of the spring, or may be configured as a (accommodating) wall body extending (or protruding) from an edge of the seat part and surrounding a circumference of the spring.

[0058] Here, the spring may also reduce an overshoot of the shoulder movement or suppress vibrations generated by the shoulder movement guide part 140.

[0059] The weight compensation part 175 may compensate for the gravity of the shoulder movement guide part 140 in the vertical direction while allowing free movement of the shoulder movement guide part 140 (to position) in the vertical direction.

[0060] A spring constant k of the weight compensation part 175 may be determined by the following equation according to a vertical movement range (stroke) of the shoulder joint and the load to be compensated. k = E / s (where k is a total spring constant, E is a gravity-compensation allowable error (W max - W min ), W max is a total compensation load (weight of the trainee's arm + weight of the shoulder movement guide part), W min is a minimum compensation load, and s is a vertical movement range of the shoulder joint.)

[0061] The gravity-compensation allowable error E represents an allowable difference between the maximum and minimum values of the compensation force within the vertical movement range of the shoulder joint. Due to the characteristics of the weight compensation part 175 using the spring, it is impossible to compensate with constant force over the entire range of the movement. However, the spring constant k may be adjusted to determine the allowable error in consideration of severity (or symptom degree) of the trainee 10 and an environment in which the shoulder movement guide part 140 is installed.

[0062] FIG. 5 is a conceptual view for explaining vertical position adjustment of the shoulder movement guide part according to an embodiment of the present invention. (a) of FIG. 5 illustrates a minimum height, (b) of FIG. 5 illustrates an intermediate height, and (c) of FIG. 5 illustrates a maximum height.

[0063] Referring to FIG. 5, the vertical position of the shoulder movement guide part 140 may be adjusted between the minimum height ↔ the intermediate height ↔ the maximum height. The vertical position of the shoulder movement guide part 140 may be adjusted according to the shoulder position of the trainee 10 and / or various body types of the trainee 10.

[0064] Thus, the shoulder training device 100 according to the present invention may precisely adjust the position of the shoulder movement guide part 140 to a position that does not impose a burden on the shoulder of the trainee 10 (for example, a position at which the rotation center of the shoulder of the trainee and the rotation center (point) of the shoulder movement guide part coincide with each other) through the guide height adjustment part 170 and the guide movement part 160 in response to the body structure and posture of the trainee 10. Thus, a natural movement pattern (or motion) suitable for the trainee 10 may be provided without imposing the burden on the shoulder of the trainee 10, and optimal shoulder training suitable for the trainee 10 may be performed.

[0065] Depending on the body structure and / or posture of the trainee 10, even for the same trainee 10, the vertical position and / or the position in the first direction of the left shoulder and the right shoulder may be different from each other. The position of the shoulder movement guide part 140 may be regulated (adjusted) to match the joint position of each shoulder.

[0066] FIG. 6 is a view illustrating the shoulder movement guide part according to an embodiment of the present invention.

[0067] Referring to FIG. 6, the shoulder movement guide part 140 may include: an arm fixing part 141 which at least partially fixes an arm of the any one side of the trainee 10; a vertical movement guide part 142 which is connected to the arm fixing part 141 and rotates the arm fixing part 141 in the vertical direction for the rotation movement of the shoulder of the any one side in the vertical direction; and a horizontal movement guide part 143 which is connected to the vertical movement guide part 142 and rotates the arm fixing part 141 in a horizontal direction together with the vertical movement guide part 142 for the rotation movement of the shoulder of the any one side in the horizontal direction. The arm fixing part 141 may fix at least a portion of the arm of the any one side of the trainee 10 and may be worn on the arm of the trainee 10 for which the training is desired. For example, the arm fixing part 141 may be configured to support or fit a portion of the arm of the trainee 10.

[0068] The vertical movement guide part 142 may be connected to the arm fixing part 141 and may rotate the arm fixing part 141 in the vertical direction for the vertical rotation movement of either shoulder. Due to the vertical movement guide part 142, the arm fixing part 141 may rotate in the vertical direction to rotate (move) the arm wearing the arm fixing part 141 in the vertical direction. Thus, the shoulder at the side wearing the arm fixing part 141 may perform the vertical rotation movement.

[0069] For example, the vertical movement guide part 142 may include a first guide member 142a that is connected to the arm fixing part 141 and is rotatable in the vertical direction so that the arm of the trainee 10 fixed to the arm fixing part 141 performs circular movement in the vertical direction. The first guide member 142a may be provided in an arc shape and may be rotatably coupled to the horizontal movement guide part 143 by being connected to the arm fixing part 141. Here, the first guide member 142a may have an arc shape and may be provided as a C-shaped frame. Here, the first guide member 142a may have a shape of an arc of a circle having a first radius and may be provided as an arc-shaped frame with a central angle of about 80° to about 110° or about 85° to about 105°. For example, the first guide member 142a may be provided as the frame having the arc shape (i.e., an arc shape of one fourth of a circle) with a central angle of about 90° from a first point at which the arm fixing part 141 is coupled to the arm fixing part 141 to a second point at which the first guide member 142a is connected (or coupled) to the horizontal movement guide part 143. The central angle from the first point to the second point of the first guide member 142a may be variously changed within a range of about 80° to about 110°.

[0070] The horizontal movement guide part 143 may be connected to the vertical movement guide part 142 and may rotate the arm fixing part 141 in the horizontal direction together with the vertical movement guide part 142 for the horizontal rotation movement of either shoulder. Due to the horizontal movement guide part 143, the arm fixing part 141 may rotate in the horizontal direction to rotate (move) the arm wearing the arm fixing part 141 in the horizontal direction. Thus, the shoulder at the side wearing the arm fixing part 141 may perform the horizontal rotation movement.

[0071] For example, the horizontal movement guide part 143 may include a second guide member 143a that is rotatable in the horizontal direction and is connected to the vertical movement guide part 142 so that the arm of the trainee 10 fixed to the arm fixing part 141 performs circular movement in the horizontal direction. The second guide member 143a may be provided in an arc shape and may be rotatably coupled to the support part 120 by being connected to the vertical movement guide part 142. Alternatively, the second guide member 143a may be coupled to the support part 120 through the guide movement part 160 and / or the guide height adjustment part 170. Here, the second guide member 143a may have an arc shape and may be provided as a C-shaped frame. Here, the first guide member 143a may have a shape of an arc of a circle having a second radius greater than the first radius and may be provided as an arc-shaped frame with a central angle of about 80° to about 110° or about 85° to about 105°. For example, the second guide member 143a may be provided as a frame having an arc shape with a central angle of about 90° from the second point at which the vertical movement guide part 142 is coupled to the support part 120 to the third point at which the second guide member 143a is connected (or coupled) to the support part 120. The central angle from the second point to the third point of the second guide member 143a may be variously changed within a range of about 80° to about 110°.

[0072] In addition, the vertical movement guide part 142 may further include a first guide rotation part 142b for allowing the first guide member 142a to rotate in the vertical direction, and the horizontal movement guide part 143 may further include a second guide rotation part 143b for allowing the second guide member 143a to rotate in the horizontal direction. The first guide rotation part 142b may rotate the first guide member 142a in the vertical direction and may be connected to one end (i.e., the second point) of the first guide member 142a so as to rotate the other end of the first guide member 142a in the vertical direction by using the one end of the first guide member 142a as an axis. Here, the first guide rotation part 142b may rotate the first guide member 142a in the vertical direction by one's own efforts of the trainee 10, or the first guide member 142a may rotate in the vertical direction using additional driving force from a (first) driving part or the like, thereby rotating the arm and / or shoulder of the trainee 10 in the vertical direction. Here, the first guide member 142a may rotate within a certain angle range (e.g., about 180° to about 270° or about 180° to about 360°) in the vertical direction.

[0073] The second guide rotation part 143b may allow the second guide member 143a to rotate in the horizontal direction and may be connected to one end (i.e., the third point) of the second guide member 143a so as to rotate the other end of the second guide member 143a in the horizontal direction by using the one end of the second guide member 143a as an axis. Here, the second guide rotation part 143b may rotate in the horizontal direction by one's own efforts of the trainee 10, or the second guide member 143a may rotate in the horizontal direction using additional driving force from a (second) driving part or the like, thereby rotating the arm and / or shoulder of the trainee 10 in the horizontal direction. Here, the second guide member 143a may rotate within a certain angle (e.g., about 180° to about 270° or about 180° to about 360°) in the horizontal direction.

[0074] In this case, one end of the first guide member 142a may be rotatably coupled to the other end (i.e., the second point) of the second guide member 143a in the vertical direction through the first guide rotation part 142b, and the other end (i.e., the first point) of the first guide member 142a may be connected (or coupled) to the arm fixing part 141 so that the arm fixing part 141 rotates in the vertical direction while rotating in the vertical direction. In addition, one end of the second guide member 143a may be rotatably coupled to the support part 120 in the horizontal direction through the second guide rotation part 143b, and the other end of the second guide member 143a may be connected to one end of the first guide member 142a. Thus, as the second guide member 143a rotates in the horizontal direction, the first guide member 142a may rotate in the horizontal direction. Here, when the first guide member 142a rotates in the horizontal direction, the arm fixing part 141 may also rotate in the horizontal direction.

[0075] Here, the first guide member 142a may be disposed inside the second guide member 143a to overlap the second guide member 143a without colliding with each other. The first guide member 142a and the second guide member 143a may be coupled to each other so that the first guide member 142a and the second guide member 143a form a spherical movement trajectory that is concentric with each other and may be coupled to each other so that the first guide member 142a and the second guide member 143a share the same center of rotation. For this purpose, the first guide member 142a is provided in the shape of an arc of a circle having a radius less than that of the second guide member 143a and may be disposed inside the second guide member 143a. Thus, in a state of being coupled to the second guide member 143a, the first guide member 142a may rotate (or move in a circular movement) independently of the second guide member 143a without contacting or colliding with the second guide member 143a.

[0076] In the case in which it is difficult to allow the trainee 10 to exercise using one's own efforts, the first guide member 142a and the second guide member 143a may rotate at a predetermined angle and speed to enable the shoulder movement of the trainee 10. The first guide member 142a and the second guide member 143a may independently rotate through the first driving part and the second driving part to perform the shoulder training that tracks the movement of the shoulder of the trainee 10 along any path on a three-dimensional spherical surface. Here, the first guide member 142a and the second guide member 143a may independently rotate using the first driving part and the second driving part to restrict the range of movement of the shoulder of the trainee 10. However, in such a case, limitations in which the first guide member 142a and the second guide member 143a rotate beyond the range within which the shoulder of the trainee 10 moves due to malfunctions of the first driving part and the second driving part may occur.

[0077] Thus, to restrict the rotation range of the first guide member 142a and the second guide member 143a, the vertical movement guide part 142 may (further) include a vertical rotation stopper 142c that restricts a rotation angle of the arm fixing part 141 in the vertical direction, and the horizontal movement guide part 143 may (further) include a horizontal rotation stopper 143c that restricts a rotation angle of the arm fixing part 141 in the horizontal direction. The vertical rotation stopper 142c may restrict the rotation angle of the arm fixing part 141 in the vertical direction and may also restrict the rotation range of (the other end of) the first guide member 142a. Here, the vertical rotation stopper 142c may be provided in an arc shape and may be installed at the other end of the first guide rotation part 142b and / or the second guide member 143a so as to be in contact with one end of the first guide member 142a. For example, the vertical rotation stopper 142c may be provided in the arc shape having a semicircular shape, and in this case, the first guide member 142a may have a rotation range of about 180°.

[0078] The horizontal rotation stopper 143c may restrict the rotation angle of the arm fixing part 141 in the horizontal direction by restricting the rotation angle of the vertical movement guide part 142 in the horizontal direction and may also restrict the rotation range of (the other end of) the second guide member 143a. Here, the horizontal rotation stopper 143c may be provided in the arc shape and may be installed on the second guide rotation part 143b and / or the support part 120 so as to be in contact with one end of the second guide member 143a. For example, the horizontal rotation stopper 143c may be provided in the arc shape having a semicircular shape, and in this case, the second guide member 143a may have a rotation range of about 180°.

[0079] When the rotation range of the first guide member 142a and the second guide member 143a is restricted by the vertical rotation stopper 142c and the horizontal rotation stopper 143c, ends of the first guide member 142a and the second guide member 143a that are in contact with the vertical rotation stopper 142c and the horizontal rotation stopper 143c may be provided with curved surfaces.

[0080] Here, the vertical rotation stopper 142c and the horizontal rotation stopper 143c may change the rotation restriction angle according to selection of either a left side or a right side. The shoulder training device 100 of the present invention may train both the shoulders (i.e., the left shoulder and the right shoulder) of the trainee 10 according to the position of the backrest 130, and the rotation directions of the first guide member 142a and the second guide member 143a may be reversed according to the position of the backrest 130. Thus, the vertical rotation stopper 142c and the horizontal rotation stopper 143c may be provided so that the rotation restriction angles thereof are changed, and the rotation restriction angle may be changed according to the selection of either the left side or the right side.

[0081] For example, the installation positions of the vertical rotation stopper 142c and the horizontal rotation stopper 143c may be changed according to the shoulder direction (i.e., whether it is the left shoulder or the right shoulder) to be trained, and thus, the training of both the shoulders may be performed using one shoulder movement guide part 140. Here, the vertical rotation stopper 142c and the horizontal rotation stopper 143c may be provided to be detachably disposed on the first guide rotation part 142b and the second guide rotation part 143b (or the second guide member and the support part), or the vertical rotation stopper 142c and the horizontal rotation stopper 143c may be provided so that their installation positions on the first guide rotation part 142b and the second guide rotation part 143b are moved (or changed). When removing or installing the vertical rotation stopper 142c and the horizontal rotation stopper 143c, a plurality of installation grooves for installing the vertical rotation stopper 142c and the horizontal rotation stopper 143c on the first guide rotation part 142b and the second guide rotation part 143b (or the second guide member and the support part) may be provided, and thus, the vertical rotation stopper 142c and the horizontal rotation stopper 143c may be installed according to the desired shoulder direction for the training.

[0082] The shoulder training device 100 according to the present invention may further include a controller (not shown) which controls each of the rotation restriction angles of the vertical rotation stopper 142c and the horizontal rotation stopper 143c according to the selection of either side thereof to provide a movement pattern corresponding to each side of the shoulder.

[0083] The controller (not shown) may control each of the rotation restriction angles of the vertical rotation stopper 142c and the horizontal rotation stopper 143c according to the selection of either side to provide the movement pattern corresponding to each shoulder. Here, the controller (not shown) may control (or adjust) each of the rotation restriction angles of the vertical rotation stopper 142c and the horizontal rotation stopper 143c according to whether the left shoulder or the right shoulder is selected and may provide the movement pattern suitable for each shoulder.

[0084] For example, the controller (not shown) may restrict the rotation ranges of the first guide member 142a and the second guide member 143a through the vertical rotation stopper 142c and the horizontal rotation stopper 143c according to the shoulder direction to be trained. Here, the rotation range of the first guide member 142a between the left shoulder and the right shoulder may be symmetrical (or reversed) with respect to the vertical direction, and the rotation range of the second guide member 143a between the left shoulder and the right shoulder may be symmetrical (or reversed) with respect to the horizontal direction. For example, when the rotation range of the first guide member 142a (in the vertical direction) during the training of the left shoulder is about 0° to about 180° (based on the upward direction), the rotation range of the first guide member 142a (in the vertical direction) during the training of the right shoulder may be about 0° to about -180° (based on the upward direction). In addition, when the rotation range of the second guide member 143a (in the horizontal direction) during the training of the left shoulder is about -80° to about 100° (based on the front direction), the rotation range of the second guide member 143a (in the horizontal direction) during the training of the right shoulder may be about -100° to about 80° (based on the front direction). Here, the rotation angle of the first guide member 142a (in the vertical direction) is about 0° at an upper side, and the angle may increase as it goes downward. Depending on the direction, one side (e.g., the front side) may be represented by "+", and an opposite side (e.g., the rear side) may be represented by "-". In addition, the rotation angle of the second guide member 143a (in the horizontal direction) is about 0° at the front side, and the angle may increase as one moves toward the rear side. Depending on the direction, the left side may be represented by "+", and the right side may be represented by "-". In this manner, the first guide member 142a and the second guide member 143a may be prevented from rotating beyond the range of movement of each shoulder, and thus, effective shoulder training may be provided without imposing the burden on the shoulders of the trainee 10.

[0085] The controller (not shown) may also control at least one of a rotation speed, a rotation acceleration, a rotation position, a rotation direction, a rotation range, or a rotation angle of each of the first guide member 142a and the second guide member 143a, or the training pattern (e.g., the movement pattern) of the trainee 10. In addition, a detection part such as a sensor may detect the direction of the shoulder to be trained, and thus, the controller (not shown) may restrict the rotation range of the first guide member 142a and the second guide member 143a through the vertical rotation stopper 142c and the horizontal rotation stopper 143c according to the detected shoulder direction.

[0086] The arm fixing part 141 may include a fixing member 141a that is detachably attached on the arm of the any one side, a first rotation member 141b connected to the fixing member 141a and configured to rotate the fixing member 141a in the horizontal direction, and a second rotation member 141c connected to the first rotation member 141b and configured to rotate the fixing member 141a in the vertical direction together with the first rotation member 141b. The fixing member 141a may be detachably attached on the arm of the any one side and may surround a portion of the arm of the any one side. For example, the fixing member 141a may include a band provided to allow the arm of the trainee 10 to be inserted therein. The band may be provided to fit the arm of the trainee 10 therein, may be made of fabric or the like, and may be configured to form a hollow cylindrical shape (or closed loop). In this case, the trainee 10 may insert the arm thereof into the band and perform the shoulder training. The band may be provided in the shape of a strap to bind the arm of the trainee 10. In this case, the band 520 may include a strap member and a coupling member installed on the strap member to bind the arm of the trainee 10 to the strap member according to a thickness of the arm. The strap member and the coupling member may be used to bind the strap member to the arm of the trainee 10.

[0087] The first rotation member 141b may be connected to the fixing member 141a to rotate the fixing member 141a in the horizontal direction and may allow the arm of the trainee 10 wearing (or mounting) the fixing member 141a to be fixed to the arm fixing part 141 without causing discomfort (or burden) to the arm of the trainee 10.

[0088] The second rotation member 141c may be connected to the first rotation member 141b to rotate the fixing member 141a in the vertical direction (and / or forward and backward direction) together with the first rotation member 141b. Similar to the first rotation member 141b, the second rotation member 141c may fix the arm of the trainee 10 wearing the fixing member 141a to the arm fixing part 141 in a state in which there is no discomfort in the arm of the trainee 10.

[0089] The arm of the trainee 10 may vary in thickness at different positions and also may not be straight from a portion (or position) of the arm on which the fixing member 141a is mounted (attached) to the shoulder (line connecting centers of the arms). Thus, when the fixing member 141a is mounted on the arm of the trainee 10 without the first rotation member 141b and / or the second rotation member 141c, since an extension direction of the arm (or the direction of the line connecting the centers of the arms) does not match the extension direction of the fixing member 141a (or a direction of a line connecting centers of the fixing member), the trainee 10 may feel discomfort in the arm.

[0090] Thus, the fixing member 141a may selectively rotate in the vertical direction and the horizontal direction through the first rotation member 141b and the second rotation member 141c to match the extension direction of the fixing member 141a with the extension direction of the arm of the trainee 10 as much as possible. Thus, the arm of the trainee 10 may be fixed to the arm fixing part 141 so that there is no discomfort to the arm of the trainee 10. The fixing member 141a may include a support plate that supports the arm of the trainee 10. The first rotation member 141b may rotate the fixing member 141a in the vertical direction so that the support surface of the support plate faces upward so that the support plate supports the arm under either the left arm or the right arm of the trainee 10, and thus, the support plate may lift and support the arm from below the arm.

[0091] In addition, the arm fixing part 141 may further include a transfer member 141d connected to the fixing member 141a to move the fixing member 141a in a direction intersecting the horizontal direction. The transfer member 141d may be connected to the fixing member 141a to move the fixing member 141a in the direction (e.g., the forward and backward direction) that intersects the horizontal direction. The moving direction of the fixing member 141a by the transfer member 141d may intersect the vertical direction and may be the same as (or parallel to) the arm extension direction of the trainee 10.

[0092] In a case in which the arm of the trainee 10 is highly curved or uneven due to muscles, it may be difficult to align the extension direction of the fixing member 141a with the extension direction of the arm of the trainee 10 even if the fixing member 141a selectively rotates in the vertical and horizontal directions through the first rotation member 141b and the second rotation member 141c. Thus, the fixing member 141a may move in the extension direction of the arm of the trainee 10 through the transfer member 141d so that the line connecting the centers of the arms of the trainee 10 becomes as straight as possible. In addition, the mounting (or attachment) position (or part) of the fixing member 141a on the arm of the trainee 10 may be changed through the transfer member 141d. As a result, the arm of the trainee 10 may be fixed to the arm fixing part 141 with as little discomfort as possible for the trainee 10.

[0093] Even when the center of shoulder rotation of the trainee 10 does not coincide with the center (point) of rotational movement of the shoulder movement guide part 140, the fixing member 141a may move in the direction extending from the arm of the trainee 10 through the transfer member 141d so as not to impose the burden on the shoulder and / or other portions (parts) of the body of the trainee.

[0094] Thus, since the shoulder training device 100 according to the present invention further includes the transfer member 141d capable of moving the fixing member 141 in the direction intersecting the horizontal direction, in addition to the first rotation members 141b and second rotation members 141c that rotate the fixing member 141 in the horizontal direction and the vertical direction, the position of the arm and / or shoulder of the trainee 10 may be finely adjusted to maximize the coincidence between the rotation center of the shoulder of the trainee 10 (or shoulder joint) and the rotation center (point) of the shoulder movement guide part 140. In addition, even if the rotation center of the shoulder of the trainee 10 does not match the rotation center (point) of the shoulder movement guide part 140, it may be possible to minimize the burden on the shoulder of the trainee 10 and / or other parts (portions) of the body.

[0095] Thus, it may be possible to prevent the unexpected injuries during the training (or rehabilitation treatment) of the shoulder joint and / or arm muscles of the trainee 10, and at the same time, the training (or rehabilitation) effect of the trainee through shoulder training may be significantly improved.

[0096] In addition, since it is possible to provide the training for each shoulder according to the selection without distinction of the left shoulder and the right shoulder using the single shoulder movement guide part 140, and since there is no need for the structure of the arm fixing part 141 that includes the plurality of joints, the complexity of the structure of the shoulder training device 100 may be reduced. In addition, as the complexity of the structure is improved, the manufacturing productivity of the shoulder training device 100 may be enhanced, and at the same time, the manufacturing cost may also be reduced. In addition, the shoulder training device 100 having a compact and lightweight structure that allows for efficient use of the installation space may be provided.

[0097] In addition, the shoulder training device 100 according to the present invention may further include a rotation part (not shown) that rotates the backrest 130 around a central axis of the support part 120.

[0098] The rotation part (not shown) may rotate the backrest 130 around the central axis of the support part 120. Alternatively, only the backrest 130 may rotate around the seat part 110, or the seat part 110 may rotate around the center of the support part 120 while the backrest 130 also rotates together with the seat part 110. As a result, the backrest 130 may move in one direction or the other direction of the first direction relative to the shoulder movement guide part 140.

[0099] In addition, the shoulder training device 100 of the present invention may further include a manipulation part (not shown) that manipulates and displays training conditions such as movement patterns. The manipulation part (not shown) may display a control situation and may manipulate at least one of a rotation speed, a rotation acceleration, a rotation direction, a rotation angle, or a training pattern of the trainee 10.

[0100] As described above, in the present invention, the position of the backrest may be changed with respect to the shoulder movement guide part to one side or the other side in the first direction. Thus, the left shoulder and the right shoulder may be selected to perform the shoulder training, and the shoulder to be trained may be switched between the left shoulder and the right shoulder. Here, the shoulder movement guide part may move in the first direction to approach the backrest through the guide movement part, and thus, it may be possible to selectively provide the training for both the left and right shoulders without blocking either of the left shoulder or the right shoulder with the single shoulder movement guide part. In addition, the position of the shoulder movement guide part may be precisely adjusted to the position at which no burden is transmitted to the shoulder of the trainee through the guide height adjustment part and the guide movement part in response to the body structure and the posture of the trainee, the natural movement pattern suitable for the trainee may be provided without imposing the burden on the trainee's shoulder, and the optimal shoulder training that suits the trainee may be performed. In addition, the transfer member capable of moving the fixing member in the direction intersecting the horizontal direction may be further provided in addition to the first and second rotation members that rotate the fixing member in the horizontal direction and the vertical direction, and thus, the shoulder rotation center of the trainee may match the rotation movement center point of the shoulder movement guide part as much as possible. In addition, even if the rotation center of the trainee's shoulder does not match the rotation center point of the shoulder movement guide part, it may be possible to minimize the burden on the trainee's shoulder and / or other portions of the body. Thus, it may be possible to prevent the unexpected injuries during the training of the shoulder joint and / or arm muscles of the trainee, and at the same time, the training effect of the trainee through shoulder training may be significantly improved. In addition, since it is possible to provide the training for each shoulder according to the selection without distinction of the left shoulder and the right shoulder using the single shoulder movement guide part, and since there is no need for the structure of the arm fixing part that includes the plurality of joints, the complexity of the structure of the shoulder training device may be reduced. In addition, as the complexity of the structure is improved, the manufacturing productivity of the shoulder training device may be enhanced, and at the same time, the manufacturing cost may also be reduced.

[0101] Although preferred embodiments of the present invention have been described with reference to a number of illustrative embodiments thereof, the embodiments of the present invention are not limited to the foregoing embodiments, and thus, it should be understood that numerous other modifications and embodiments may be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. Hence, the real protective scope of the present invention shall be determined by the technical scope of the accompanying claims.

Claims

1. A shoulder training device comprising: a seat part on which a trainee can sit; a support part configured to support the seat part; a backrest provided at one side or the other side of the seat part in a first direction; and a shoulder movement guide part provided at one side of the seat part in a second direction intersecting the first direction to guide movement of a shoulder of any one side selected from left and right sides of the trainee, wherein the backrest is changeable in position with respect to the shoulder movement guide part toward one side or the other side in the first direction.

2. The shoulder training device of claim 1, further comprising a plurality of backrest fixing parts, which are provided at the one side and the other sides of the seat part in the first direction, respectively, wherein the backrest is selectively coupled to and separated from the plurality of backrest fixing parts to change a relative position thereof with respect to the shoulder movement guide part toward the one side or the other side of the seat part in the first direction.

3. The shoulder training device of claim 2, further comprising a guide movement part configured to move the shoulder movement guide part in the first direction.

4. The shoulder training device of claim 3, wherein the backrest is changed in relative position with respect to the shoulder movement guide part according to the selection of the any one side of the left and right sides, and the guide movement part moves the shoulder movement guide part in a direction approaching the backrest.

5. The shoulder training device of claim 3, wherein the guide movement part comprises: a plurality of rail parts extending in the first direction and provided side by side with each other; and a movable body connected to the shoulder movement guide part and movable along the plurality of rail parts.

6. The shoulder training device of claim 1, further comprising a guide height adjustment part configured to adjust a vertical position of the shoulder movement guide part.

7. The shoulder training device of claim 6, wherein the guide height adjustment part comprises a weight compensation part configured to compensate for a weight of the shoulder movement guide part.

8. The shoulder training device of claim 1, wherein the shoulder movement guide part comprises: an arm fixing part configured to fix at least a portion of an arm of the any one side of the trainee; a vertical movement guide part connected to the arm fixing part to rotate the arm fixing part in a vertical direction so as to perform vertical rotation movement of the shoulder of the any one side; and a horizontal movement guide part connected to the vertical movement guide part and configured to rotate the arm fixing part in a horizontal direction together with the vertical movement guide part so as to perform horizontal rotation movement of the shoulder of the any one side.

9. The shoulder training device of claim 8, wherein the vertical movement guide part comprises a vertical rotation stopper configured to restrict an angle of the vertical rotation of the arm fixing part, and the horizontal movement guide part comprises a horizontal rotation stopper configured to restrict an angle of the horizontal rotation of the vertical movement guide part.

10. The shoulder training device of claim 9, wherein the vertical rotation stopper and the horizontal rotation stopper are changeable in rotation restriction angle according to the selection of the any one side of the left and right sides.

11. The shoulder training device of claim 10, further comprising a controller configured to control each of the rotation restriction angles of the vertical rotation stopper and the horizontal rotation stopper according to the selection of the any one side to provide a movement pattern corresponding to the shoulder at each side.

12. The shoulder training device of claim 8, wherein the arm fixing part comprises: a fixing member configured to be detachably attached on the arm of the any one side; a first rotation member connected to the fixing member to rotate the fixing member in the horizontal direction; and a second rotation member connected to the first rotation member to rotate the fixing member together with the first rotation member in the vertical direction.

13. The shoulder training device of claim 12, wherein the arm fixing part further comprises a transfer member connected to the fixing member to move the fixing member in a direction intersecting the horizontal direction.

14. The shoulder training device of claim 1, further comprising a rotation part configured to rotate the backrest around a central axis of the support part.

Images