KR102157514B1 - Back support apparatus and motion assist apparatus comprising the same - Google Patents

Abstract

A back support device according to an embodiment includes: a waist support unit for supporting a user′s waist; a base fixed to the waist support unit; a back plate support unit rotationally connected to the base about a first rotation axis; a back plate connected to the back plate support unit and supporting a user′s back; a slider connected to the back plate support unit; and a shoulder support unit rotationally connected to the slider about a second rotation axis parallel to the first rotation axis. The present invention can adjust the height of the mounting member.

Description

Back support device and exercise assist device including the same BACK SUPPORT APPARATUS AND MOTION ASSIST APPARATUS COMPRISING THE SAME

The following description relates to a backboard support device, specifically, a backboard support device capable of moving with multiple degrees of freedom, and an exercise assist device including the same.

As the aging society intensifies, the number of people complaining of pain and discomfort due to joint problems is increasing, and interest in exercise assisting devices that assist the elderly or patients with joint discomfort are increasing.

The exercise assisting device refers to a device that is mounted on the user's body and increases the user's physical ability by amplifying the muscle strength of the user's arm and/or leg. In order to increase the mounting convenience of the exercise assistance device and to realize stable walking, the shape of the backboard support device in which the user and the most parts are fastened is important. However, the conventional backboard support device of the exercise assistance device was developed without consideration of the user's upper body movement, and thus the user's movement is inconvenient. For this reason, the user has a limitation in moving in conjunction with the exercise assistance device.

For example, the user's back may be bent based on the waist, and the user's shoulder may be bent based on the back. There is a need for an exercise assistance device capable of adapting to such movements.

In addition, the conventional exercise assisting device does not reduce the impact transmitted through the ground during walking, and thus the impact is directly transmitted to the battery and the controller mounted on the backboard support device, so that the durability is weak.
As prior art, Japanese Unexamined Patent Application Publication No. 2016-209443, Japanese Unexamined Patent Application Publication No. 2018-198917, and Japanese Unexamined Patent Application Publication No. 2018-130268 may be referred to.

An object of an embodiment is to provide a back plate support device having two degrees of freedom that can better adapt to a user's upper body movement by configuring a multi-degree of freedom joint in consideration of waist bending.

In addition, an object of an embodiment is to provide a back plate support device having two degrees of freedom capable of adjusting the height of the shoulder mounting member according to the size of the user's upper body.

In addition, an object of an embodiment is to provide a back plate support device having two degrees of freedom capable of reducing an impact transmitted through a lower extremity exoskeleton assembly through a suspension.

A back plate support device according to an embodiment includes: a waist support portion supporting a user's waist; A base fixed to the waist support; A back plate support part rotatably connected to the base about a first rotation axis; A back plate connected to the back plate support and supporting the user's back; A slider connected to the back plate support; And a shoulder support portion rotatably connected to the slider about a second rotation axis parallel to the first rotation axis.

The back plate support part is rotatable independently of the shoulder support part.

The back plate support device is accommodated inside the base, one end is fixed to the base, and the other end is kept in contact with the back plate support, while the back plate support is rotated with respect to the base by the back plate support. It may further include a waist spring to be compressed.

The waist spring may be disposed in the base in a direction crossing the first rotation axis.

The back plate support part may include a back plate body rotatably connected to the base; A backboard guide protruding upward from the backboard body; And a back plate protrusion protruding downward from the back plate body to contact the waist spring.

The back plate support device may further include a shoulder spring compressed by the back plate support portion while the shoulder support portion rotates with respect to the slider.

The back plate support device includes a spring guide having a first end rotatably fixed to the back plate, a central portion penetrating the shoulder support portion, and a second end portion provided on the opposite side of the first end around the shoulder support portion. It may contain more. The shoulder spring may be disposed between the second end of the spring guide and the shoulder support.

The slider is slidable along the back plate guide.

The slider may include: a slider body slidable along the back plate guide; a stopper provided inside the slider body, movable in a direction perpendicular to the longitudinal direction of the back plate guide, and having a shape meshing with the back plate guide; And a slider handle that is slidable with respect to the slider body and that can be pushed up by pressing the stopper.

The slider may include a slider cover detachably fixed to the slider body; And it may further include an elastic member disposed between the slider cover and the stopper.

The elastic member may be deformed while the stopper moves in a direction away from the back plate guide.

The back plate support device may further include a suspension including a suspension body protruding from the base and a shock absorber installed on the suspension body.

A back plate support device according to an embodiment includes: a waist support portion supporting a user's waist; A base fixed to the waist support; A back plate support part rotatably connected to the base about a first rotation axis; A back plate connected to the back plate support and supporting the user's back; And it may include a slider slidable along the back plate support.

The slider may include: a slider body slidable along the back plate support portion; a stopper provided inside the slider body, movable in a direction perpendicular to the longitudinal direction of the back plate support portion, and having a shape meshing with the back plate support portion; And a slider handle that is slidable with respect to the slider body and that can be pushed up by pressing the stopper.

The slider may include a slider cover detachably fixed to the slider body; And it may further include an elastic member disposed between the slider cover and the stopper.

The back plate support device is accommodated inside the base, one end is fixed to the base, and the other end is kept in contact with the back plate support, while the back plate support is rotated with respect to the base by the back plate support. It may further include a waist spring to be compressed.

The back plate support device may further include a shoulder support portion rotatably connected to the slider about a second rotation axis parallel to the first rotation axis.

A shoulder spring compressed by the back plate support portion while the shoulder support portion rotates with respect to the slider; And

The back plate support device includes a spring guide having a first end rotatably fixed to the back plate, a central portion penetrating the shoulder support portion, and a second end portion provided on the opposite side of the first end around the shoulder support portion. It may contain more. The shoulder spring may be disposed between the second end of the spring guide and the shoulder support.

An exercise assisting device according to an embodiment includes: a waist support portion supporting a user's waist; A base fixed to the rear end of the waist support; A back plate support part rotatably connected to the base about a first rotation axis; A back plate connected to the back plate support and supporting the user's back; A slider connected to the back plate support; A shoulder support portion rotatably connected to the slider about a second rotation axis parallel to the first rotation axis; A pelvic frame rotatably connected to the base; And a suspension connected to the base and compressed while the pelvic frame is close to the base.

The apparatus for supporting a backboard having two degrees of freedom according to an exemplary embodiment may better adapt to the user's upper body movement by configuring a multi-degree of freedom joint in consideration of waist bending. This can improve the user's fit and convenience.

In addition, since the height of the shoulder mounting member can be adjusted according to the size of the user's upper body in the back plate support device having two degrees of freedom according to an embodiment, while maintaining the position of the hip joint driving unit, the clearance between the back plate support device and the user's upper body is It can be prevented from occurring.

In addition, the apparatus for supporting a backboard having two degrees of freedom according to an embodiment can protect an exercise assisting device and a user by mitigating an impact generated during high-speed walking through a suspension, and increase operability of the exercise assisting device.

The following drawings attached to the present specification illustrate a preferred embodiment of the present invention, and serve to further understand the technical idea of the present invention together with the detailed description of the present invention, so the present invention is limited to the matters described in such drawings. It is limited and should not be interpreted.
1 is a rear view illustrating a user wearing an exercise assistance device according to an exemplary embodiment.
2 is a side view illustrating a user wearing an exercise assistance device according to an exemplary embodiment.
3 is a side view showing a back plate support according to an embodiment.
4 is a side view showing a state in which the back plate support portion of FIG. 3 is deformed.
5 is a front view of a back plate support according to an embodiment.
6 is a cross-sectional view taken along the cut line VI-VI of FIG. 5.
7 is a cross-sectional view showing a state in which the shoulder spring of FIG. 6 is deformed.
8 is a front view showing a spring guide and a back plate according to an embodiment.
9 is a cross-sectional view taken along the cut line IX-IX of FIG. 5.
10 is a cross-sectional view taken along the cut line X-X of FIG. 5.

Hereinafter, embodiments will be described in detail through exemplary drawings. In adding reference numerals to elements of each drawing, it should be noted that the same elements are assigned the same numerals as possible even if they are indicated on different drawings. In addition, in describing the embodiment, if it is determined that a detailed description of a related known configuration or function interferes with the understanding of the embodiment, a detailed description thereof will be omitted.

In addition, in describing the constituent elements of the embodiment, terms such as first, second, A, B, (a) and (b) may be used. These terms are only used to distinguish the component from other components, and the nature, order, or order of the component is not limited by the term. When a component is described as being "connected", "coupled" or "connected" to another component, that component may be directly connected or connected to that other component, but another component between each component It should be understood that may be “connected”, “coupled” or “connected”.

Components included in one embodiment and components including common functions will be described using the same name in other embodiments. Unless otherwise stated, descriptions in one embodiment may be applied to other embodiments, and detailed descriptions in the overlapping range will be omitted.

FIG. 1 is a rear view illustrating a user wearing an exercise assistance device according to an exemplary embodiment, and FIG. 2 is a side view illustrating a user wearing an exercise assistance device according to an exemplary embodiment.

1 and 2, an exercise assisting device may assist a user's exercise. For example, the exercise assisting device 1 may assist a user's actions such as walking, running, climbing stairs, and/or squatting and standing up. For example, the exercise assisting device 1 may perform a role of helping the user to walk without difficulty while supporting a heavy load.

The exercise assisting device may include a back support device 1 that supports a user's back and is deformable in response to the movement of the back. For example, the exercise assisting device may include components for assisting a hip joint and/or a knee joint. The exercise assisting device includes a back support device (1), a pelvic frame (92), a hip joint actuator (93), a thigh frame (94), a thigh wearing part (90), a knee joint actuator (95), a shin frame (96), and a foot. It may include a support (97).

The back support device 1 can be deformed in response to the movement of the user's back and/or shoulders. The user's back can be bent against the user's waist, and the user's shoulder can be bent against the user's back. The back support device 1 can be bent together while the user's back and/or shoulders are bent, and can be extended together while the back and/or shoulders are being stretched. The back support device 1 includes a waist support 18, a base 11, a back support 12, a back 10, a slider 14, a shoulder support 15, a suspension 19, a waist spring 13, 3), a shoulder spring 16 (see FIG. 3), and a spring guide 17 (see FIG. 3).

The waist support part 18 may support the user's waist. For example, the waist support 18 may be a strap or a band surrounding a user's waist. The length of the waist support 18 may be adjusted according to the size of the user's waist.

The base 11 may be fixed to the waist support 18. The base 11 may be located at the rear of the waist support 18. Here, the rear refers to the back of the user and refers to the -x direction. The base 11 may rotatably support the back plate support 12.

The back plate support 12 may support the back plate 10. The backrest support 12 can rotate relative to the base 11. The back plate support 12 may be provided one on each side of the back plate 10 as a reference. One back plate support 12 may support the left side of the back plate 10, and the other back plate support 12 may support the right side of the back plate 10.

The back plate 10 may support the user's back. The back plate 10 may be disposed between the two back plate supports 12. The back 10 is movable relative to the base 11. The back plate 10 is not fixed to the base 11, but may be fixed to the back plate support 12. The back plate 10 can rotate with respect to the base 11 together with the back plate support 12.

The slider 14 may be connected to the back plate support 12. The slider 14 may support the shoulder support 15. The slider 14 is slidable along the back plate support 12. The slider 14 may assist the user to comfortably wear the back plate support device 1. The height direction (z-axis direction) distance from the waist support 18 to the slider 14 may be adjusted according to the user's upper body size. Since the user can adjust the position of the slider 14 while wearing the waist support 18 and the base 11 first, the position of the slider 14 can be easily adjusted according to the body size. In addition, in the state of wearing the exercise assisting device, that is, in the state of wearing the thigh wearing part 90, the foot supporting part 97 and the waist supporting part 18, the position of the slider 14 is adjusted to easily fit the body size. The backrest support device 1 can be adjusted.

The shoulder support 15 may support the user's shoulder. The shoulder support 15 may include a strap or a band that surrounds the user's shoulder and is fixed to the back 10 or the back support 12.

The suspension 19 may prevent the pelvic frame 92 from colliding strongly with the base 11. The pelvic frame 92 may be rotatably connected to the base 11. The pelvic frame 92 may rotate with respect to the base 11 in response to the adduction and/or abduction of the hip joint. The suspension 19 may contact the pelvic frame 92 to absorb the shock while the pelvic frame 92 conforms to the abduction of the hip joint and approaches the base 11. The suspension 19 may include a suspension body 191 protruding from the base 11 to the side (y-axis direction) and a shock absorber 192 installed on the suspension body 191. The shock absorber 192 extends downward from the suspension body 191 and may have one end in contact with the pelvic frame 92. For example, one end of the shock absorber 192 may be spaced apart from the pelvic frame 92 while the user is upright.

A description of the waist spring 13 (see FIG. 3), the shoulder spring 16 (see FIG. 3), and the spring guide 17 (see FIG. 3) will be described in detail below in FIG. 3.

The hip joint actuator 93 may be disposed at the end of the pelvic frame 92. The hip joint actuator 93 may rotate the thigh frame 94 relative to the pelvic frame 92.

The thigh frame 94 may be rotatably connected to the pelvic frame 92. For example, the thigh frame 94 may be connected to the pelvic frame 92 through the hip joint actuator 93. The angle formed by the thigh frame 94 and the pelvic frame 92 may be determined by the hip joint actuator 93. The thigh frame 94 may have a length direction parallel to the user's thigh. The thigh frame 94 may assist the user's thigh movement.

The thigh wearing part 90 is connected to the thigh frame 94 and may support the user's thigh. The thigh wearing part 90 may wrap around the thigh. For example, the thigh wearing unit 90 may be adjustable in length to closely adhere to the user's thigh.

The knee joint actuator 95 may be disposed at the lower end of the thigh frame 94. The knee joint actuator 95 may rotate the shin frame 96 relative to the thigh frame 94.

The shank frame 96 may be rotatably connected to the thigh frame 94. For example, the shin frame 96 may be connected to the thigh frame 94 through the knee joint actuator 95. The angle formed by the thigh frame 94 and the shin frame 96 may be determined by the knee joint actuator 95. The shank frame 96 may have a longitudinal direction parallel to the user's shank. The shin frame 96 may assist the user's movement of the shin.

The foot support 97 is connected to the shin frame 96 and may support a user's foot. The foot support 97 may have a longitudinal direction parallel to the sole of the user's foot.

3 is a side view showing a back plate support according to an embodiment, and FIG. 4 is a side view showing a modified state of the back plate support of FIG. 3. FIG. 5 is a front view of a back plate support according to an exemplary embodiment, FIG. 6 is a cross-sectional view taken along a cut line VI-VI of FIG. 5, and FIG. 7 is a cross-sectional view illustrating a modified state of the shoulder spring of FIG. 6. 8 is a front view showing a spring guide and a back plate according to an embodiment.

3 to 8, the base 11 may include a base body 111 fixed to the waist support 18, and a spring receiving portion 112 formed inside the base body 111. The spring receiving part 112 may have a shape opened in a direction toward the user's back (x direction), for example.

The waist spring 13 may be accommodated on the inside of the base 11. The waist spring 13 may be compressed while the back plate support 12 is rotated with respect to the base 11, and may exert a restoring force in a direction in which the back plate support 12 is restored to its original posture. On the waist spring 13, the user can easily open the waist even when a heavy load is placed on the back plate. The waist spring 13 may be accommodated in the spring receiving portion 112.

One end of the waist spring 13 is fixed to the base 11, and the other end can maintain a state in contact with the back plate support 12. While the back plate support 12 rotates with respect to the base 11, for example, while rotating counterclockwise about the first rotation axis A1, the waist spring 13 is by the back plate support 12 Can be compressed. The waist spring 13 may be disposed in the base 11 in a direction crossing the first rotation axis A1. In other words, the waist spring 13 may have its longitudinal direction intersect with the first rotation axis A1. Referring to FIG. 3, the first rotation axis A1 may be parallel to the y axis, and the waist spring 13 may be parallel to the x axis.

The back plate support 12 may be rotatably connected to the base 11 about the first rotation axis A1. The first rotation shaft A1 may be provided at the lower end of the back plate support 12. The back plate support 12 may rotate counterclockwise with respect to the base 11 about the first rotation axis A1 while the user's back is bent based on the waist. The back support 12 can rotate independently of the shoulder support 15. The back plate support device 1 is capable of rotating two degrees of freedom. The rotation angle Θ1 of the backrest support 12 may be determined according to the bending angle of the user's back, and the rotation angle Θ2 of the shoulder support 15 may be determined according to the bending angle of the user's shoulder. The back plate support part 12 may include a back plate body 121, a back plate protrusion 122, and a back plate guide 123.

The back body 121 may be rotatably connected to the base 11. The back plate body 121 may support the lower portion of the back plate 10. The back body 121 may have a shape inclined rearward as it goes upward. According to such a shape, while the first rotation shaft A1 can be in close contact with the user's waist, the back body 121 can be formed to correspond to the user's back shape.

The back protrusion 122 may protrude downward from the back body 121 to contact the waist spring 13. At least a portion of the back protrusion 122 may be inserted into the spring receiving portion 112. The waist spring 13 compressed by the back protrusion 122 can act as a restoring force in the direction of pushing the back protrusion 122, and by this restoring force, the user can carry a heavy load through the back 10 Can be easily unfolded. The restoring force applied by the waist spring 13 may increase as the rotation angle increases. The waist spring 13 can prevent the user's back from being excessively bent.

The back plate guide 123 may be formed to protrude upward from the back plate body 121. The back plate guide 123 may include a plurality of protrusions protruding outward. The slider 14 may include a stopper having a shape that meshes with the protrusion of the back plate guide 123, and may be fixed in position to the back plate guide 123. The slider 14 may be positioned along the backplate guide 123 by separating the stopper from the backplate guide 123. In other words, when the stopper is spaced apart from the climbing guide 123, the slider 14 is slidable along the climbing guide 123.

This will be described in detail with reference to FIGS. 9 and 10.

The back plate 10 is connected to the back plate support 12 and may support the user's back. The back plate 10 may include a back plate protrusion 10a. The back plate protrusion 10a may accommodate the spring guide 17. The back plate 10 may be disposed between the two back plate supports 12. The back plate protrusion 10a is formed to protrude in a direction toward the user's back, and may be positioned close to the shoulder support 15.

The shoulder support 15 may be rotatably connected to the slider 14 about the second rotation shaft A2. The second rotation axis A2 is parallel to the first rotation axis A1. Since the back support part 12 is rotatable with respect to the base 11 and the shoulder support part 15 is rotatable with respect to the back support part 12, the back support device 1 effectively adapts to the movement of the user's back and shoulders. can do. Since the slider 14 can be adjusted in position with respect to the back plate support part 12, the back plate support device 1 may prevent the user's shoulder from being separated from the shoulder support part 15. The second rotation shaft A2 may be provided at the lower end of the shoulder support 15. The shoulder support part 15 may include a first wing part 15a surrounding the user's right shoulder and a second wing part 15b surrounding the user's left shoulder. The first wing portion 15a and the second wing portion 15b may be in close contact with the user's shoulder by adjusting the position of the slider 14.

The back support device 1 may further include a shoulder spring 16 and a spring guide 17.

The shoulder spring 16 can be compressed by the back support 12 while the shoulder support 15 rotates relative to the back support 12. The shoulder spring 16 may be compressed while the shoulder support 15 rotates counterclockwise. The shoulder spring 16 may assist the user to easily perform an operation of extending the shoulder again by applying a restoring force. The shoulder spring 16 may continuously apply an assisting force to one side of the shoulder support 15 while the shoulder support 15 is rotated. The restoring force applied by the shoulder spring 16 may increase as the rotation angle increases. The shoulder spring 16 may prevent the user's shoulder from being excessively bent.

The spring guide 17 may support the shoulder spring 16 so that it does not come off. The spring guide 17 may be rotatably connected to the back plate protrusion 10a. For example, while the shoulder support 15 rotates counterclockwise with respect to the slider 14 as shown in FIG. 4, the spring guide 17 may also rotate counterclockwise. The spring guide 17 includes a first end 171 rotatably fixed to the back plate 10, for example, the back plate protrusion 10a, and extends from the first end 171 and extends the shoulder support 15. It may include a central portion 172 passing through and a second end 173 provided on the opposite side of the first end 171 with the shoulder support 15 as the center. The sizes of the first end 171 and the second end 173 may be larger than the size of the central portion 172. The first end 171 may have a substantially cylindrical shape elongated in one direction. The back plate protrusion 10a may have a receiving portion having a shape corresponding to the first end 171. The first end portion 171 is capable of rotating one degree of freedom within the receiving portion of the back plate protrusion 10a. For example, the first end 171 may be rotated only about a rotation axis parallel to the second rotation axis A2, that is, a rotation axis parallel to the y axis, and rotation in other directions may be restricted. According to this structure, it is possible to prevent the user's shoulder support from turning left and right. The shoulder spring 16 may be positioned between the second end 173 of the spring guide 17 and the shoulder support 15.

9 is a cross-sectional view taken along the cut line IX-IX of FIG. 5, and FIG. 10 is a cross-sectional view cut along the cut line X-X of FIG. 5.

9 and 10, the slider 14 may include a slider body 141, a stopper 142, a slider cover 143, an elastic member 144, and a slider handle 145.

The slider body 141 is slidable along the back plate support 12, for example, the back plate guide. The slider body 141 may have a shape having a hollow portion therein. The slider body 141 may accommodate the stopper 142 and the elastic member 144 therein and support the slider handle 145.

The stopper 142 is provided inside the slider body 141 and is movable in a direction perpendicular to the length direction of the back plate support 12, for example, the back plate guide (y-axis direction). The stopper 142 may have a shape that meshes with the back plate support 12, for example, the back plate guide. For example, the back plate guide may have protrusions regularly protruding, and the stopper 142 may have a protrusion shape inserted between the protrusions.

The slider cover 143 may be detachably fixed to the slider body 141. The slider cover 143 may support one surface of the elastic member 144 to prevent the elastic member 144 from being separated from the outside. The slider cover 143 may be screwed to the slider body 141, for example.

The elastic member 144 may be disposed between the slider cover 143 and the stopper 142. The elastic member 144 may be deformed while the stopper 142 moves in a direction away from the back plate support 12, for example, the back plate guide. The elastic member 144 may be a coil spring, a leaf spring, or rubber.

The slider handle 145 is slidable with respect to the slider body 141 and can be pushed up by pressing the stopper 142. The slider handle 145 is slidable in a direction perpendicular to the sliding direction (z-axis direction) of the slider body 141 (x-axis direction). The slider handle 145 may have a downwardly inclined shape, and may be inserted into the slider body 141 to lift the stopper 142 in the +y direction. While the slider handle 145 lifts the stopper 142, the elastic member 144 may be deformed. One slider handle 145 may be provided on each side of the stopper 142 as the center. The user can easily disengage the stopper 142 by operating one slider handle 145 with the thumb joint and the other slider handle 145 with the index finger joint.

As described above, although the embodiments have been described by the limited drawings, various modifications and variations are possible from the above description to those of ordinary skill in the art. For example, the described techniques are performed in a different order from the described method, and/or components such as the described structure, device, etc. are combined or combined in a form different from the described method, or in other components or equivalents. Even if substituted or substituted by, appropriate results can be achieved.

Claims (19)

A waist support part supporting the user's waist;
A base fixed to the waist support;
A back plate support part rotatably connected to the base about a first rotation axis;
A back plate connected to the back plate support and supporting the user's back;
A slider connected to the back plate support;
A shoulder support portion rotatably connected to the slider about a second rotation axis parallel to the first rotation axis; And
It is accommodated inside the base, one end is fixed to the base, the other end maintains a state in contact with the back plate support, including a waist spring compressed by the back plate support while the back plate support portion rotates with respect to the base and,
The back plate support part,
A back plate body rotatably connected to the base;
A backboard guide protruding upward from the backboard body; And
Back plate support device including a back plate protrusion formed to protrude downward from the back plate body to contact the waist spring.
The method of claim 1,
The back plate support unit can rotate independently of the shoulder support unit.
The method of claim 1,
The waist spring is a back plate support device disposed in the base in a direction crossing the first rotation axis.
The method of claim 1,
Back plate support device further comprising a shoulder spring compressed by the back plate support portion while the shoulder support portion rotates with respect to the slider.
The method of claim 4,
A first end portion is rotatably fixed to the back plate, a central portion penetrating the shoulder support portion, a second end further comprises a spring guide provided on the opposite side of the first end around the shoulder support portion,
The shoulder spring is disposed between the second end of the spring guide and the shoulder support.
The method of claim 1,
The slider is a backboard support device slidable along the backboard guide.
The method of claim 6,
The slider,
A slider body slidable along the back plate guide;
A stopper provided inside the slider body, movable in a direction perpendicular to the longitudinal direction of the backplate guide, and having a shape meshing with the backplate guide; And
Back plate support device including a slider handle slidable with respect to the slider body and pushed up by pressing the stopper.
The method of claim 7,
The slider,
A slider cover detachably fixed to the slider body; And
Back plate support device further comprising an elastic member disposed between the slider cover and the stopper.
The method of claim 8,
The resilient member is deformed while the stopper moves in a direction away from the backplate guide.
The method of claim 1,
Back plate support device further comprising a suspension including a suspension body protruding from the base and a shock absorber installed on the suspension body.
A waist support part supporting the user's waist;
A base fixed to the waist support;
A back plate support part rotatably connected to the base about a first rotation axis;
A back plate connected to the back plate support and supporting the user's back;
A slider slidable along the back plate support portion; And
It is accommodated in the inside of the base, one end is fixed to the base, the other end maintains a state in contact with the back plate support, including a waist spring compressed by the back plate support while the back plate support portion rotates with respect to the base and,
The back plate support part,
A back plate body rotatably connected to the base;
A backboard guide protruding upward from the backboard body; And
Back plate support device comprising a back plate protrusion formed to protrude downward from the back plate body to contact the waist spring.
The method of claim 11,
The slider,
A slider body slidable along the back plate support portion;
A stopper provided inside the slider body, movable in a direction perpendicular to the longitudinal direction of the back plate support part, and having a shape meshing with the back plate support part; And
Back plate support device including a slider handle slidable with respect to the slider body and pushed up by pressing the stopper.
The method of claim 12,
The slider,
A slider cover detachably fixed to the slider body; And
Back plate support device further comprising an elastic member disposed between the slider cover and the stopper.
The method of claim 11,
The back plate support device further comprising a shoulder support rotatably connected to the slider about a second rotation axis parallel to the first rotation axis.
The method of claim 14,
A shoulder spring compressed by the back plate support portion while the shoulder support portion rotates with respect to the slider; And
A first end portion is rotatably fixed to the back plate, a central portion penetrating the shoulder support portion, a second end further comprises a spring guide provided on the opposite side of the first end around the shoulder support portion,
The shoulder spring is disposed between the second end of the spring guide and the shoulder support.
A waist support part supporting the user's waist;
A base fixed to the rear end of the waist support;
A back plate support part rotatably connected to the base about a first rotation axis;
A back plate connected to the back plate support and supporting the user's back;
A slider connected to the back plate support;
A shoulder support portion rotatably connected to the slider about a second rotation axis parallel to the first rotation axis;
A pelvic frame rotatably connected to the base;
A suspension connected to the base and compressed while the pelvic frame is close to the base; And
It is accommodated inside the base, one end is fixed to the base, the other end maintains a state in contact with the back plate support, including a waist spring compressed by the back plate support while the back plate support portion rotates with respect to the base and,
The back plate support part,
A back plate body rotatably connected to the base;
A backboard guide protruding upward from the backboard body; And
Exercise assistance device comprising a backrest protrusion formed to protrude downward from the back body and contact the waist spring.
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