JP3224958U - Spine correction exercise equipment - Google Patents

Abstract

Kind Code: A1 An object of the present invention is to provide a spinal correction exercise device capable of accurately and effectively performing a spine correction exercise. Kind Code: A1 A spinal correction exercise device includes a spine correction exercise chair including a seat portion, a backrest portion, legs and a spine motion portion, and a footrest. A screw shaft 51 provided in a long hole provided vertically in the middle of the backrest portion, and provided on the upper and lower ends of the screw shaft to support the screw shaft so as to rotate. A shaft supporting portion 52, 52 ', a rotation operating tool 53 fixedly operated to rotate the screw shaft portion, and screwed to the screw shaft portion to rotate the screw shaft portion according to the position of a lesion site in a patient. An elevating moving device 55 that moves up and down by operation, and is coupled to the front of the elevating moving device. When the user moves the body back and forth, only the right and left lateral protrusions of the upper lumbar vertebra 2 are pressed forward to compress the spine. Composed of one transverse pressure applying member 56 that performs dynamic. [Selection diagram] FIG.

Description

  The present invention is a posterior joint of the spine, while pressing the left and right lateral processes of the upper lumbar vertebra No. 2 forward and pressing against one lateral process pressing tool of the backrest by moving the body back and forth while sitting on the spine correction exercise chair. More specifically, the present invention relates to a spinal correction exercise device for inducing traction and increasing extension movement to alleviate various secondary diseases caused by disc degeneration of the lower lumbar spine, and more particularly to spinal correction. In the middle of the backrest of the exercise chair, a lifting and lowering device with one horizontal projection pressing device is screwed to the screw shaft, so that one side can be adjusted according to the height of the patient's spine. Adjusting the vertical movement of the protruding tool, manually setting it so that the left and right protruding parts of the lateral protruding tool are positioned only on the left and right lateral processes of the upper lumbar vertebra 2. 2nd left and right When pressing only the projections forward and pressing against the left and right protrusions of one lateral projection pressing tool, the lateral projection pressing tool maintains a fixed position, and the spine that can perform the spine corrective movement accurately and effectively The present invention relates to a correction exercise device.

  Modern people have a rapidly increasing number of patients with spinal disease at the age of middle and old age.

  Patients with such a spinal disease have increased lumbar disc degeneration due to the age of aging, and secondary disc disease and lower back pain due to such disc degeneration induce nerve paralysis and pain in the lower limb, etc. The quality of life that should be happy has declined significantly.

  In addition, since students and office workers spend a considerable amount of time sitting in chairs, the lower lumbar spine is subjected to a long-term load, and the number of diseases of the lower lumbar spine is increasing.

  There are various types of such spine diseases, for example, lumbar spine anxiety (Seqment instability), nerve root compression syndrome (Nerve root compression syndrome), degenerative spondylolisthesis (Degenerative spondylosisthesis and spinal stenosis). stenosis).

  The lumbar spine anxiety (Segment instability) is a phenomenon in which the intervertebral space (Space) becomes narrow due to disc degeneration between the lumbar vertebra No. 4 and the lumbar vertebra No. 5 or between the lumbar vertebra No. 5 and the pelvis. Pain appears at the hips and buttocks.

  In the nerve root compression syndrome, the hole through which the nerve root passes is narrowed, and pain is induced in the lower limb when standing or walking for a long time.

  The degenerative spondylolisthesis is a condition in which one segment is slipping forward due to disc degeneration. In a woman, the lumbar vertebra 4 is displaced forward, and in a male, the lumbar vertebra 5 is displaced forward. Clinical symptoms cause severe pain in one or both feet when standing or walking.

  Spinal stenosis is also caused by degeneration of the disc due to degeneration of the intervertebral disc and a decrease in the diameter of the spinal canal due to regression of the posterior spinal joint and thickening of the anterior longitudinal ligament or posterior longitudinal ligament. It is easy to live with your hips bent, and when walking with your hips stretched, both feet are very tired and painful, and you can no longer walk. If you sit and bend for a while, your symptoms will go away and you will be able to walk again.

  Various methods of exercise therapy have been used to improve such spinal diseases

  That is, in the exercise treatment method, various secondary diseases are caused by degeneration of the lower lumbar vertebra, the movement of the segment between the upper lumbar vertebra and the thoracic / lumbar vertebra is lost, and the segmentation of the upper lumbar vertebra and the lower thoracic vertebra is performed. The underlying theory is based on the orthopedic physics spine mechanism that increasing the extension movements in the lower lumbar vertebrae (L5-S1) (L4-L5) reduces the load and thus relieves pain.

  Manual therapy, which is one of the exercise therapies for improving the spine disease, is also based on such a spine mechanism.

  The manual therapy involves placing a tennis ball on the back of a chair that is used daily by modern people and moving the body back and forth in contact with the spinous process of the lower lumbar or lower thoracic vertebra with less movement. It is a movement that induces traction and increases extension movement, which helps alleviate various secondary diseases caused by disc degeneration of the lower lumbar spine (L5-S1, L4-5).

At this time, the lower lumbar spine can be flexed easily only by placing the foot on the footrest and flexing the knee joint and hip joint to the maximum (actual resting position).
However, the above-mentioned conventional treatment method has the following problems.

  First, it is very difficult to position the tennis ball in the middle of the chair back, the height of the spine varies from patient to patient, and it is very difficult to position the tennis ball exactly in one of the spinous processes of the upper lumbar spine. There was a problem that was difficult.

  Second, when the tennis ball is pressed against only one of the spinous processes of the upper lumbar vertebra (L2) while moving the body back and forth, the tennis ball may move out of a fixed position or move away from the backrest. Therefore, there has been a problem that the spine correction exercise cannot be performed accurately and effectively.

Korean Patent Publication No. 10-2011-094501 Korean Utility Model Publication No. 20-2010-0002894

  SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and an object of the present invention is to move up and down with one lateral projection pressing tool attached in the middle of the backrest of a spine correction exercise chair. By installing the tool in a structure that is screwed to the screw shaft, one horizontal projection pressing tool is adjusted to move up and down according to the height of the patient's spine, and the left and right projections of the horizontal projection pressing tool are at the top It is manually set accurately so that it is located only on the left and right lateral protrusions of the lumbar vertebra No. 2, and the body is moved back and forth and pushes only the left and right lateral protrusions of the upper lumbar vertebra No. 2 forward, and the left and right protrusions of one lateral protrusion pressing tool An object of the present invention is to provide a spinal correction exercise device that can perform a spine correction exercise accurately and effectively, with a lateral projection pressing tool maintaining a fixed position when pressing.

  To achieve the above object, the present invention provides a spinal correction exercise device comprising a seat portion, a backrest portion, a leg portion and a spine motion portion, and a footrest. The spinal motion part is provided in a long hole provided vertically vertically in the middle of the backrest part, and a screw shaft part is provided on the upper and lower ends of the screw shaft part, to rotate the screw shaft part. An upper and lower shaft supporting portion, a rotation operating tool fixedly mounted to rotate the screw shaft portion, and a screw shaft screwed to the screw shaft portion, depending on a position of a lesion site in a patient. A lifting and lowering moving tool that moves up and down by the rotation operation of the part, and is coupled to the front of the lifting and lowering tool, and the user moves the body back and forth to push forward and press only the left and right lateral protrusions of the upper lumbar spine 2 The left and right protrusions of the upper lumbar vertebra 2 are formed by a user manually rotating the rotation operating tool so that the left and right protrusions of the upper lumbar vertebra 2 are formed. The height of one lateral projection pressing tool is configured to be manually and accurately adjusted to a position where it contacts only the lateral projection, and the footrest is configured so that a user can sit on the spine correction exercise chair and operate the knee joint. It is characterized by comprising a footrest on which a foot is placed so that the lower lumbar spine can be bent flexibly by maximally bending the hip joint.

  According to the present invention, the lateral protrusion pressing tool is provided between the left and right protrusions for the user to press forward and press the left and right lateral protrusions of the upper lumbar vertebra No. 2 and the spinous process of the upper lumbar vertebra. And a groove for accommodating the same.

  According to the present invention, the lateral protrusion pressing device further includes an inclined portion that supports the user's waist below the left and right protrusions so that the user can perform a spine correction exercise in a relaxed state. It is characterized in that the whole shape of the projection pressing tool is a wedge shape.

  According to the present invention, the rotary actuating tool comprises an insertion tube externally inserted into the screw shaft portion, and a rotation projection protruding outside the insertion tube, and is fixedly connected to the screw shaft portion with a fixing bolt. It is characterized in that it is configured to rotate.

  According to the present invention, the lifting / lowering moving device is provided with guide projections on both sides so as to be vertically guided along the guide groove of the lifting / lowering guide device when the screw shaft is rotated.

  A special technical feature of the present invention is that the knee joint and the hip joint are bent using a footrest to maintain the lower lumbar vertebra in a bending posture, and only the left and right lateral processes of the upper lumbar vertebra 2 are moved forward. That is, it is constituted by one lateral projection pressing tool so as to press and press.

  Thus, when only the left and right lateral processes of the upper lumbar vertebra 2 are pressurized in a stable state in which the space for accommodating the nerve bundle is open, the lumbar vertebra can be extended while the lumbar vertebra does not suffer pain. .

  Further, the lateral projection pressing tool is provided between the left and right projections, where the user presses the left and right lateral projections of the upper lumbar spine 2 forward to press, and accommodates the spinous process of the upper lumbar spine 2. The left and right lateral projections of the upper lumbar vertebrae simultaneously press the left and right two projections of the lateral projection pressing tool, and the lateral projection and the lateral projection pressing tool are compared with the spinous process and the cushion ball. Since the compression is performed with a wider contact surface, the spine correction movement can be performed more accurately and effectively because the one spinous process does not deviate from the home position much more than the case of pressing one cushion ball by pressing forward. .

  Also, unlike conventional massage machines, the reason for moving one lateral projection pressing tool up and down is that the height of the upper lumbar vertebra is all different because the height varies from person to person, and in this state the left and right of the upper lumbar vertebra 2 This is because it is necessary to accurately adjust the height only for the lateral protrusion. In order to accurately adjust the height in this manner, a person must manually adjust the position while checking the position of the lateral protrusion of the upper lumbar vertebra, instead of using an automatic control method such as a motor.

  Pressing multiple lateral processes of the upper lumbar vertebra at the same time induces pain and induces various side effects, so make sure that the left and right protrusions of one lateral process pressing tool only contact the left and right lateral processes of the upper lumbar spine 2 To

  Therefore, the present invention is intended to improve and correct various lumbar diseases (lumbar spine anxiety, spinal canal stenosis, spondylolisthesis, nerve root compression syndrome, etc.) caused by degeneration of the lower lumbar disc. Composed of a single lateral projection pressing tool to press only the lateral projection of upper lumbar vertebra No. 2 forward while maintaining the lower lumbar vertebra in the flexed posture by bending the knee joint and hip joint by 90 degrees or more using a table (2) Since the two left and right lateral processes of the upper lumbar vertebra 2 simultaneously press the lateral process pressing device, the user presses the left and right lateral processes of the upper lumbar vertebra 2 forward. A left and right protruding portion to be pressed and a concave groove provided between the left and right protruding portions and accommodating the spinous process of the upper lumbar vertebra No. 2; It is characterized by precise manual adjustment of the height. Configuration is a configuration that does not disclose the massaging device or Anma device is manufactured without pathological knowledge of spinal, a configuration which can not be entirely derived from the massaging device or Anma device.

  In the present invention, only the lateral protrusion of the upper lumbar vertebra No. 2 is obtained by moving the body back and forth while sitting on a spine correction exercise chair and placing the foot on a footrest so that the lower lumbar vertebra is easily bent. By pressing the anterior to compress the one lateral process pressing tool of the backrest to induce traction of the posterior spine joint and increase the movement of extension, various secondary diseases caused by disc degeneration of the lower lumbar spine A spine correction exercise that relaxes is performed.

  In addition, according to the present invention, since only a specific lateral process is pressurized in a stable state in which a space for accommodating nerve bundles is opened, there is an effect that the lumbar spine can be extended without causing pain in the lumbar spine.

  In particular, by installing a lifting and lowering tool with one horizontal projection pressing tool attached to the screw shaft in the middle of the backrest of the spine correction exercise chair, according to the height of the patient's spine Manually adjust the height of one horizontal projection pressing tool so that the left and right projections of the horizontal projection pressing tool are positioned only on the left and right horizontal projections of the upper lumbar vertebra 2. Movement back and forth, pushing only the left and right lateral processes of the upper lumbar spine 2 forward and pressing on the left and right protruding parts of one lateral process pressing device, the horizontal process pressing device maintains the fixed position, and spine correction movement Can be performed accurately and effectively.

  In addition, the present invention pushes the two left and right lateral processes of the upper lumbar vertebra forward to simultaneously press the two protrusions of the lateral process pressing device, and the lateral process and the lateral process pressing device are compared with the spinous process and the cushion ball. Since the compression is performed with a wider contact surface, the spine correction movement can be performed more accurately and effectively because the one spinous process does not deviate from the home position much more than the case of pressing one cushion ball by pressing forward. This has the effect.

  That is, in addition to the exercise convenience of the patient with spinal disease, accurate and effective exercise is possible, and the exercise efficiency is excellent.

  In addition, according to the present invention, a concave groove for accommodating the spinous process is provided between the left and right protruding portions of the lateral process pressing tool, so that the horizontal process can press the horizontal process pressing device in a state where the spinous process does not contact. Thus, there is an effect that a spine corrective movement can be performed even for a patient whose spinous process is too sharp and induces pain.

FIG. 2 is a perspective view showing the spine correction exercise chair of the present invention. FIG. 2 is a side sectional view of FIG. 1. FIG. 2 is a perspective view of an essential part of the present invention. FIG. 4 is a side sectional view of FIG. 3. FIG. 4 is a back sectional view of FIG. 3. FIG. 4 is a side sectional view showing another embodiment of FIG. 3. FIG. 4 is a side sectional view showing a use state of the present invention. FIG. 4 is a plan view showing the upper surface of the lateral projection pressing tool and the upper lumbar vertebra No. 2 of the present invention. FIG. 4 is a perspective view of the lateral protrusion pressing tool of the present invention.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  The present invention provides a spine correction exercise chair 100 on which a patient can sit, and a lower lumbar spine that can be flexibly bent (actual resting position) by placing a patient's foot on the knee and maximally flexing a knee joint and a hip joint. And a footrest 200.

  In particular, the spine correction exercise chair 100 includes a seat part 10, a backrest part 20, a leg part 30, and a spine exercise part 50, as shown in FIGS.

  That is, the spine motion part 50 is provided at the upper and lower ends of the screw shaft part, and the screw shaft part 51 provided in the elongated hole 21 provided vertically in the middle of the backrest part 20, and the screw shaft part is provided. The screw shaft 51 is screwed to the screw shaft 51, and upper shaft support portions 52 and 52 'for rotating the screw shaft 51, and a rotation operating tool 53 fixed to rotate the screw shaft 51. An elevating and lowering device 55 which is moved up and down by rotating the screw shaft in accordance with the position of the lesion site of the patient; and connected to the front of the elevating and lowering device, and the upper lumbar spine 2 One lateral projection pressing tool 56 that performs a spinal correction motion while pressing and pressing only the left and right lateral projections 60 and 60 ′ forward.

  As shown in FIGS. 8 and 9, the lateral protrusion pressing tool 56 includes left and right protrusions 57, 57 ′ that the user pushes forward and presses the left and right lateral protrusions 60, 60 ′ of the upper lumbar spine 2. A groove 58 is provided between the left and right protrusions 57, 57 'and encloses the spinous process 61 of the upper lumbar vertebra, and is formed of a material having a cushioning repulsion that is buffered by an external force like a tennis ball. In addition to being fixed on the front surface of the lifting / lowering moving tool 55, it can be configured to be detached, replaced, and installed.

  The reason that the concave groove 58 for accommodating the spinous process 61 should be provided between the left and right protruding portions 57 and 57 ′ is that the spinous process 61 extending forward from the spine does not contact the lateral process pressing tool 56, and the The left and right lateral protrusions 60, 60 'of the upper lumbar vertebra can be pressed against the left and right protrusions 57, 57' so that the laterally extending left and right protrusions 60, 60 'contact the left and right protrusions 57, 57'. In order to

  As shown in FIGS. 8 and 9, the lateral protrusion pressing tool 56 is provided below the left and right protrusions 57 and 57 ′ so that the user can perform a spine correction exercise in a relaxed state. The lateral projection pressing tool 56 is further provided with an inclined portion 59 for supporting the waist, and the lateral projection pressing tool 56 has a wedge shape.

  As shown in FIG. 4, the upper and lower shaft supporting portions 52 and 52 'are provided with rolling balls 52a at the upper and lower ends of the screw shaft portion 51, and the rolling balls are operated in a ball housing 52c. As shown in FIG. 6, the screw shaft 51 can be formed in various structures such as a structure in which the upper and lower ends are rotatably supported by bearings 52b.

  The rotation operating tool 53 includes an insertion tube 53a externally inserted into the screw shaft portion 51, and at least three projections 53b projecting from the insertion tube at equiangular positions outside the insertion tube to rotate the insertion tube. However, it is configured to be fixedly connected to the screw shaft portion 51 with a fixing bolt 53c and to rotate together.

  The lifting / lowering moving tool 55 has guide projections 55a on both sides so as to be guided up and down along the guide groove 54a of the lifting / lowering guide 54 when the screw shaft 51 is rotated.

  In addition, the shapes and structures of the seat portion 10, the backrest portion 20 and the leg portions 30 are not limited to the shapes and structures shown in the drawings, and can be changed to various shapes and structures, as well as their simple shapes. It is clarified that changes in the structure of the device also belong to the scope of the present invention.

  Hereinafter, the operation and operation of the present invention will be described.

  First, since the user sits on the spine correction exercise chair 100 and places his / her feet on the tall footrest 200 to bend the knee joint and the hip joint to the maximum, the lower lumbar vertebra is easily bent (actual resting). Position).

  Only by maintaining the bending position of the lower lumbar vertebra in this way, the lower lumbar spinal canal and the hole through which the nerve emerges during exercise of a patient with a spinal disease, which is a user, become wider, and the lower lumbar vertebra during exercise (treatment) is enlarged. No pain is induced.

  In the spine motion part 50 of the spine correction exercise chair, the position of one lateral projection pressing tool 56 is manually moved up and down to adjust the left and right projections 57 and 57 ′ of the lateral projection pressing tool 56 so that the upper lumbar vertebra. It is moved and adjusted to a position where it can contact only the second left and right lateral projections 60 and 60 '.

  This is adjusted by rotating a screw shaft portion 51 which is vertically provided in the central long hole 21 of the backrest portion 20 of the spine correcting exercise chair.

  More specifically, the screw shaft 51 is rotated forward and backward by rotating the rotation operating tool 53 fixedly provided on the screw shaft 51 forward and backward.

  At this time, in the rotation operating tool 53, an insertion tube 53a externally inserted into the screw shaft portion 51 is fixedly provided with a fixing bolt 53c. For this reason, the rotation operation tool and the screw shaft are rotated together by grasping and rotating the rotation projection 53b outside the insertion tube 53a.

  When the screw shaft portion 51 is rotated forward and backward in this way, the screw shaft portion 51 is provided on the upper and lower ends, and the upper and lower structures of the rolling ball 52a or the bearing 52b inserted in the ball housing 52c are provided. Rotating forward and backward while idling by the shaft supporting portions 52 and 52 '.

  As described above, while the screw shaft part 51 rotates forward and backward, the lifting and lowering tool 55 screwed to the screw shaft part 51 is moved up and down.

  At this time, the lifting and lowering tool 55 is moved up and down while the guide projections 55a on both sides are guided along the guide grooves 54a of the lifting and lowering guide 54, and one horizontal projection is installed in front of the lifting and lowering tool. Since the pressing tool 56 moves vertically up and down along the user's spine at the center position of the backrest 20 of the spine correction exercise chair, the left and right protruding portions 57 and 57 'of the lateral process pressing portion 56 are connected to the upper lumbar vertebra 2. Is precisely moved and adjusted to a position where it can contact only the left and right lateral projections 60 and 60 '.

  In this state, the user's body is moved back and forth to perform a spine correction exercise.

  That is, by moving the user's body back and forth, the left and right lateral protrusions 60 and 60 ′ of the upper lumbar vertebra 2 of the patient are moved to the left and right protrusions 57 and 57 of one lateral protrusion pressing tool 56 located in the middle of the backrest. While pressing the 'anteriorly, compression is performed by inducing traction of the posterior spine joint to increase the extension movement, and alleviating various secondary diseases caused by disc degeneration of the lower lumbar spine.

  In particular, the left and right projections 57, 57 'of one lateral projection pressing tool 56 located in the middle of the backrest are accurately positioned only on the spine of the patient, that is, only on the left and right lateral projections 60, 60' of the upper lumbar vertebra 2 of the patient. It is easily set so that it is positioned, and when the body is moved back and forth, the left and right lateral protrusions 60 and 60 'of the upper lumbar vertebra 2 press the left and right protrusions 57 and 57' of one lateral protrusion pressing tool 56 when they are pressed. Since the projection pressing tool 56 maintains the fixed position, an excellent spinal correction exercise effect can be obtained while performing the spinal correction exercise easily and accurately as compared with the related art.

  Further, the lateral protrusion pressing tool 56 is provided between the left and right protrusions 57 and 57 ′ in which the user presses the left and right lateral protrusions 60 and 60 ′ of the upper lumbar spine 2 forward to press the left and right protrusions 60 and 60 ′. A concave groove 58 enclosing the spinous process of the lumbar spine, pressing the two left and right lateral projections 60, 60 'of the upper lumbar vertebrae forward to press the two left and right projections 57, 57', and press the lateral process and the lateral process. The device compresses with a wider contact surface than the spinous process and the cushion ball, so that it does not come off the home position much more than if only one spinous process is pushed forward and pressed against a single cushion ball. Exercise can be performed more accurately and effectively.

DESCRIPTION OF SYMBOLS 10 Seat part 20 Backrest part 21 Long hole 30 Leg part 50 Spinal movement part 51 Screw shaft part 52, 52 'Upper and lower shaft support parts 52a Rolling ball 52b Bearing 52c Ball housing 53 Rotating operation tool 53a Insertion tube 53b Rotation protrusion 53c Fixation Bolt 54 Elevation guide 54 a Guide groove 55 Elevation moving tool 56 Lateral projection presser 57, 57 ′ Right and left projection 58 Recessed groove 59 Inclined part 60, 60 ′ Left and right lateral projection 61 Spinous process 200 Footrest

Claims (5)

A spine correction exercise chair comprising a seat portion, a backrest portion, a leg portion and a spine motion portion, and a spinal correction exercise device including a footrest,
The vertebral motion part is provided at a screw shaft part installed in a long hole provided vertically in the middle of the backrest part, and provided at the upper and lower ends of the screw shaft part, and rotates the screw shaft part. The upper and lower shaft support portions, which are supported as described above, and a rotation operating tool fixedly mounted to rotate the screw shaft portion, and screwed to the screw shaft portion, and the screw shaft portion according to the position of a lesion site of the patient. An elevating and lowering device that is moved up and down by the rotation of the screw shaft portion, and coupled to the front of the elevating and lowering device, and when the user moves the body back and forth, only the left and right lateral protrusions of the upper lumbar vertebra 2 are pushed forward and pressed. The left and right protrusions of the one horizontal projection pressing tool are configured by the user manually rotating the rotation operating tool so that the upper lumbar spine 2 Configured the transverse only to the height of one of said transverse pressure applying member in a position to contact to adjust accurately manually
The footrest may be configured such that a user sits on the spine correction exercise chair and bends the knee joint and hip joint to a maximum so that the foot is placed on the lower lumbar vertebra to maintain a bending posture. Exercise equipment for correction.   The lateral projection pressing tool is provided between the left and right projections, where the user pushes forward and presses the left and right lateral projections of the upper lumbar vertebra No. 2 and the concave which accommodates the spinous process of the upper lumbar vertebra No. 2 The exercise device for spinal correction according to claim 1, further comprising a groove.   The lateral protrusion pressing device further includes an inclined portion that supports a user's waist below the left and right protrusions so that the user can perform a spine correction exercise in a relaxed state, The exercise device for spinal correction according to claim 2, wherein the whole shape is a wedge shape.   The rotation operating tool includes an insertion tube inserted into the screw shaft portion and a rotation protrusion protruding outside the insertion tube, and is fixedly connected to the screw shaft portion with a fixing bolt to rotate together. The spinal correction exercise device according to claim 1, wherein the exercise device is configured as follows.   The spine according to claim 1, wherein the lifting / lowering moving tool includes guide protrusions on both sides to be guided up and down along a guide groove of the lifting / lowering guide tool when the screw shaft is rotated. Exercise equipment for correction.