WO2010087602A2

WO2010087602A2 - Knee brace that is attachable/detachable to/from an ankle brace

Info

Publication number: WO2010087602A2
Application number: PCT/KR2010/000446
Authority: WO
Inventors: 조경일
Original assignee: Cho Kyung Il
Priority date: 2009-02-02
Filing date: 2010-01-25
Publication date: 2010-08-05
Also published as: WO2010087602A4; WO2010087602A3

Abstract

The present invention relates to a knee brace that is attachable/detachable to/from an ankle brace, and which is formed by interconnecting a knee brace (Fig. 1 (100)) and an ankle brace (Fig. 1 (200)) via a connection frame (Fig. 1 (600)) having a sawtooth side. The knee brace (100) is configured such that, when the patient bends the knee thereof to walk, an annular upper support (110) having a predetermined length and an annular lower support (120) having a predetermined length rapidly move toward a knee rotation angle center shaft (400) which can adjust the rotation angle of the knee of the patient through the simple structure thereof in accordance with the condition of the patient, such that the upper support (110) and the lower support (120) escape from the thigh and the calf of the patient, respectively, which form an inverted triangle shape, to loosen the fastening force of a fastening belt of the upper support, which fastens the brace to the thigh of the patient, and when the patient stands upright by straightening the knees thereof, the upper support and the lower support rapidly move to be spaced apart from each other to increase the gap therebetween in which the knee joint of the patient is positioned. The knee brace (100) has a rubber band (300) which enables the O-shaped bowleg of the patient to become an X-shaped leg to protect the outworn internal cartilaginous plate of the knee joint and to urge the use of the external cartilaginous plate thereof, and which draws the knee rotation angle center shaft (400) in a backward direction to assist the upper support and the lower support in standing upright. The ankle brace (200) has an ankle rotation angle center shaft (500) which can adjust the rotation angle of the ankle of the patient through the simple structure thereof in accordance with the condition of the patient, and the ankle rotation angle center shaft (500) has a hole (510) for inserting the ankle bone of the patient to improve the comfort of the patient. The knee brace that is attachable/detachable to/from ankle brace according to the present invention, and which is formed by interconnecting the knee brace (100) and the ankle brace (200) via the connection frame (600) having a sawtooth side, distributes the weight of a patient being loaded onto the knee thereof from an upper support (110) of the knee brace to a sole plate (350) of the ankle brace, thus protecting the knee joint of the patient.

Description

Ankle and detachable knee pads

In the present invention, when the patient slightly bends or squeezes the leg to walk, the upper protrusion (FIG. 1.110) and the lower support 120 are provided with the raised protrusions (FIG. 3.430) and the rotary protrusions 440 installed on the fixed frame 140. Traction is rapidly approached or spaced apart from each other by using the traction, and the rubber band (Fig. 4.300) is installed around the knee rotation angle center axis around the thigh and lower support of the calf of the lower support (O) legs X (X) -type legs to guide the formation, by using the elasticity of the rubber band to pull the knee rotation angle center axis in the rear direction to make the rotating frame (Fig. 4.130) and the fixed frame 140 upright by the traction action and wearer walking The impact of the weight is prevented from being applied directly to the worn inner cartilage plate of the knee and rotates with a simple structure using a rotating spring (Fig. 7.450), a stopper 460, and a fixing hole 480. Make the knee protector 100 is possible angle adjustment.

Rotatable spring (Fig. 11.550), stopper (520, 530), a fixed structure using a fixed hole 540 is possible to adjust the rotatable angle and to form a circular hole 510 in the rotation center axis of the ankle rotation angle center axis 500 Balsam bone of the patient is inserted to create a good comfort ankle protector (200).

According to the length of the patient's calf, using the tooth-shaped connection frame (Fig. 10.600) that can adjust the height of the multi-steps, the ankle protector is connected to the knee protector by fixing the weight applied to the knee of the patient upper support 110 From the ankle protector to the sole plate 350 of the ankle protector to protect the knee joint of the ankle protector and detachable knee protector.

In general, the knee protector for patients with degenerative arthritis, which wears the medial cartilage plate of the knee joint, stabilizes the rotational movement of the knee joint, reduces the pressure caused by the weight of the patient on the damaged knee joint, and the upper and lower support belts when walking The thighs and calves of the child are often removed and tightened repeatedly, tightening or loosening the blood circulation is good, and depending on the patient's condition, he wants a knee protector that can adjust the angle of rotation of the knee and ankle.

That is, the invention of the knee joint toe device registration patent KR 10-0648639 of Figure 15

As suggested in the configuration

That is, as shown in the use state diagrams of FIGS. 3A and 3B and the operation state diagrams of FIGS. 4A to 4D, while the wearer's knee is bent, the gap between the femur and the cartilage of the knee joint is maintained in a normal state. When standing upright or standing in a chair, the second towing member 130 is gradually lowered by the rotational movement of the first towing member 110 is gradually spaced apart between the femur and cartilage of the knee joint. .

However, such a method requires a lot of accessories such as a fixing piece 155 to fix one end of the spring 153, the connecting member 150, a locking piece 131, and the first towing member 110 and the second. Since the traction member 130 is not completely mechanically connected to each other, the operation is unstable and the rotatable angle cannot be adjusted.

In addition, as shown in the configuration and operation of the design of the KR 20-0378573 for the knee protection and impact relief device registration room installed in the knee protector of Figure 16,

The present invention is a knee protector formed on the side of the knee protector,

Tube 30 and: the upper support (10): the lower support (50): the movable pin (40): the hinge (41): in the tube 30, respectively, is inserted into the upper and lower openings, one side The ring 11 and the other side of the upper support 10 is characterized in that it comprises a spring 20 connected to the movable pin 40 is fixed to the movable hole (32a) of the lower support (50) It is done.

However, this method requires a complex structure and many accessories such as the tubular body 30 and the spring 20, and does not control the rotatable angle. When the patient bends the knee more than 90 degrees, the upper support and the lower support are completely separated by the towing action. When the patient slightly bends the knee 10 to 40 degrees to walk, the tightening belt is less likely to be pulled out of the patient's thigh.

In addition, as shown in KR 10-0834074 of FIG. 17 and US 7,044,925 B2 of FIG. 18, the upper and lower supports are raised and lowered by connecting the upper and lower supports to each other using a plurality of links.

However, this method requires a complicated link and has a disadvantage in that the rotation angle of the knee cannot be adjusted.

In addition, as shown in US 2006/0135904 A1 of FIGS. 19 and 20, one rubber band 18 wraps around the knee at the upper support 40 and connects to the lower support 42 and the other rubber band 20. ) Was wrapped around the knee in the lower support 42 and connected to the upper support (40) to guide the O-type legs to the X-type legs.

However, this method is pulled together due to the elasticity of the rubber band 301 connecting the upper support 110 and the lower support 120, as shown in Fig. 4 (1) to fix the knee of the patient even upright. Since the frame 140 and the rotation frame 130 are not fully upright, the impact caused by the weight of the patient generated when walking is directly applied to the knee joint.

The present invention attaches the center of the rubber band 300 to the knee rotation angle center axis (Fig. 4.00), one side wraps the thigh and connects to the upper support 110, the other wraps the calf and connects to the lower support 120 Induces the deformation of the O-type leg into the X-type leg and at the same time uses the elasticity of the rubber band to pull the center of the knee rotational angle backward to help the knee frame's rotation frame and the fixed frame to stand upright. .

Literature Information of the Prior Art

[Document 1] 'Angle adjusting device of knee joint aid'

Registration Room KR 20-0431104

[Patent 2] 'Knee joint tow device' registered patent KR 10-0648639

[Document 3] 'Knee protection and impact relief device installed on the knee protector'

Registration Room KR 20-0378573

[Document 4] Knee Joint Orthosis

Patent Registration KR 10-0834074

[Reference 5] U.S, Patent 'Hinge system for regulating knee joint

flexion and extension ’US 7,044,925 B2

[Document 6] U.S, Patent ‘Knee brace and method for securing the same '

US 2006/0135904 A1

In order to solve the problems described above, the present invention provides a knee-shaped 10 to 40 degrees for the patient to walk the upper support and lower support of a constant length of a circular shape that strongly surrounds the thigh and calf of the inverted triangle When it is bent, it is a simple structure, and it can move rapidly in the direction of the knee rotation angle center axis (Fig. 9 (2)) that can adjust the rotation angle with a simple structure. When the patient is upright to walk, the patient sharply spaces and moves around the center of the knee rotational angle (Fig. 9 (1)) to open the gap between the inverted thigh and the calf and to pull the knee. Reduce the weight of the patient on the cartilage plate of the joints,

Using the rubber band (Fig. 1.300) installed on the central axis of the knee rotation angle to guide the O-type legs to be X-type legs,

The ankle rotation angle of the ankle protector which protects the damaged knee joint by distributing the weight of the patient applied to the knee joint from the upper support to the sole plate of the ankle protector using the connecting frame (Fig.1.600) The purpose of the present invention is to develop an ankle protector and a detachable knee protector that allow a protruding balsam bone of a patient to fit into a circular hole 510 formed in a central axis (Fig. 1,500).

In order to achieve the object as described above

As shown in the structural diagram of Figure 7 in order to increase the elastic force in the rotating frame attached to the upper support rotary spring 450, stopper 460, stopper 460 formed with U-shaped bends (455, 456) at both ends In the simple structure using the (480) can be rotated adjustable knee rotation angle center axis (400)

As shown in the structural diagram of FIG. 2, the raised slide grooves 410, the rotary slide grooves 420, and the protruding raised protrusions 430 and the protruding rotating protrusions 440 formed on the fixed frame of the lower support are provided. Install

As shown in the operation of Figure 4, one side of the rubber band 300 inserted into the rubber band insertion hole 490 formed in the central axis of rotation angle of the knee is connected to the upper support 110 and the other side of the lower support ( 120) If the rotational angle of the knee is slightly bent from 10 to 40 degrees for the wearer to walk, keep the distance between the femur and cartilage plate of the knee joint in a normal state, but the angle of rotation of the knee for the wearer to walk In the case of (2), which is upright from about 0 degrees to about 10 degrees, the knee rotation angle center axis 400 rises sharply with the help of the rotational motion of the rotary frame 110 of the upper support and the elasticity of the rubber band. Allow the gap between the femur of the joint and the cartilage plate to widen.

As shown in the operation of FIG. 10, the weight of the patient applied to the upper support 110 of the knee protector tightly surrounding the inverted triangle thigh is installed on the lower support without extending to the knee joint at the upper support of the knee protector. Inserting the multi-stage groove of the connecting frame into the fixing protrusion 620 of the connecting frame and the circular frame 510 so as not to be caught by the connecting frame 600 and the protruding balsam bone of the patient fixed by the fixing ring 610. Forming and passing through the ankle rotation angle center axis 500 and the sole plate 350 of the ankle protector capable of adjusting the rotatable angle to distribute the weight of the patient to the ground without striking the knee joint of the patient.

The cartilage injured by cartilage injuries due to degenerative arthritis or exercise is alleviated directly on the damaged knee joint, protecting the cartilage plate of the damaged knee joint and the fastening belts of the upper and lower supports wrap around the patient's thighs and calves. The patient loosens the tightening force from time to time to improve blood circulation, and the simple structure can adjust the angle of rotation of the knee and ankle according to the patient's condition. Guided by the leg, protects the medial cartilage plate, so that the patient's balsam bone is inserted into the circular hole of the rotation angle fixing shaft of the ankle protector.

1 is a perspective view of the overall structure of the present invention.

Figure 2 is a structure of rising and lowering the knee rotation angle center axis of the present invention.

Figure 3 is an operation of raising and lowering the knee rotation angle center axis of the present invention.

4 is an operation of the present invention and the conventional rubber band

5 is another embodiment of a rubber band of the present invention.

Figure 6 is an operation when applying a rotation angle fixed axis to a conventional rotation angle season.

Figure 7 is a knee angle of rotation angle adjustment axis of the present invention, the angle of rotation and lower structure

8 is a rotatable angle operation of the knee rotation angle center axis of the present invention.

9 is an operation when the patient wears the ankle rotation angle center axis of the present invention.

10 is an operation to attach the ankle protector to the knee protector of the present invention

11 is a structural diagram of the ankle rotation angle center axis of the present invention.

12 is an operation of the ankle rotation angle center axis of the present invention.

Figure 13 is an operation of the knee rotation angle center axis and the connecting frame of the present invention.

14 is a practical wear of the present invention.

15 is a structural diagram of registered KR 10-0648639.

16 is a structural diagram of KR 20-0378573 for registration room.

17 is a structural diagram of registered KR 10-0834074.

18 is a structural diagram of U.S. Patent 'Hinge system for regulating knee joint flexion and extension' US 7,044,925 B2.

19 and 20 are structural diagrams of U.S. Patent 'Knee brace and method for securing the same' US 2006/0135904 A1.

The present invention is to relieve the weight of the degenerative arthritis patient directly to the injured knee joint by using the separation and traction effect and to bend the knee to the patient walking the tightening force of the tightening belt of the upper support wraps around the patient's thigh When loosened, loosen the blood circulation frequently and adjust the rotatable angle of the knee and ankle protector with a simple structure, and form a circular hole in the center of the rotation angle of the ankle protector to make it comfortable to wear. Ankle protector and detachable knee protector which connects the guard and ankle guard to distribute the weight of the patient directly to the knee joint.

1 is an overall perspective view of the present invention.

Upper support 110 having an upper tightening belt and a rotating frame 130:

Lower support 120 with a lower tightening belt and a fixing frame 140:

Lifting, rotating slide grooves and protruding protrusions and rotating springs, stoppers, fixing grooves and rubber bands 300 installed on the knee protector 100, the knee rotation angle center shaft 400:

Toothed connection frame (600) that can adjust the height of the multi-step while connecting the knee guard and ankle guard:

Ankle rotation angle center shaft 500 having a circular hole 510 and a rotation spring, a stopper, and a fixing groove in a central axis connecting the ankle frame and the sole plate with each other:

Ankle protector 200 having a sole plate 350 in the shape of the sole:

Ankle protector with removable accessories and detachable knee protector.

Figure 2 is a structural diagram of the rise and fall of the knee rotation angle center axis

The rising slide groove 410 and the rotating slide groove 420 are installed in the knee rotation angle center shaft 400 connected to the rotating frame 130, and the rising protrusion 430 and the rotating protrusion 440 are fixed to the fixed frame 140. Install).

3 is an operation diagram of the rising and falling of the rotating frame and the fixed frame

(1) When the patient straightens the knee and the rotation angle is upright about 0 degrees to 10 degrees, the rotation protrusion 440 installed on the fixed frame 140 is a rotation slide of the knee rotation angle center axis 400 connected to the rotation frame. The rising protrusion 430 located at the bottom of the groove 420 and installed in the fixed frame is located at the bottom of the rising slide groove 410 of the knee rotation angle center axis 400.

(2) When the patient bends the knee at an angle of 10 to 40 degrees for walking, the rotating slide groove of the central axis of rotation of the knee sharply descends by the rotary protrusion.

The ascending slide groove of the knee rotation angle center shaft descends sharply on the ascending protrusion of the fixed frame, and the upper upper support (Fig. 1,110) of constant length loosens from the inverted triangle thigh and loosens the tightening belt.

(3) When the patient is seated on the chair and the knee is bent at an angle of about 40-110 degrees, the rotary protrusion 440 of the fixed frame about the ascending protrusion 430 of the fixed frame of the knee rotation angle center axis The semi-circular rotation is carried on the rotating slide groove 420 of the rotating frame.

Figure 4 is an operation of the rubber band of the present invention and the existing rubber band

(1) The existing rubber band 301 wraps around the knees starting from the upper support 110 and is connected to each other by the lower support 120 so that when the patient stretches the knees upright, the upper support and the lower support are the elasticity of the rubber band. Pulling each other is difficult to completely stand up the fixed frame and the rotating frame has the disadvantage that the impact of the weight of the patient is imposed on the upper support does not move to the lower support without passing through the knee joint.

(2) When the rubber band of the present invention, the patient stretches the knees and the rotation angle is upright about 0 to 10 degrees, by using the elasticity of the rubber band, the knee rotation angle center axis 400 is pulled backwards to fix the frame and the rotation. By inducing the upright of the frame, the protrusion protrusion 440 of the fixed frame 140 moves to the bottom of the rotary slide groove 420 connected to the rotary frame 130 and at the same time the upward protrusion 430 of the fixed frame is raised While moving to the bottom of the slide groove 410 induces the rise of the rotating frame and the upper support.

5 is another embodiment of the rubber band to help the upright when the two knee rotation angle center axis for the traction action, one on each side of the knee protector is installed,

(1) The rubber band 310 starts from one knee rotation angle center axis and connects to the knee rotation angle center axis while surrounding the knee joint, and uses the elastic force of the rubber band to move the knee rotation angle center axis backward. By pulling up, it helps the upper and lower supporters stand up to induce traction of the thighs and calves.

(2) Start the rubber band 320 on one knee rotational center axis, connect the patient's calf to the back center of the lower support, and start the other rubber band 320 on the other knee rotational center axis. It is connected to the center of the back of the lower support while surrounding the calf of the patient by using the elastic force of the rubber band to pull the center of the knee rotation angle in the rear direction to help the upper and lower support upright to induce traction of the thigh and calf.

(3) The rubber band 330 starts from the center of the back of the lower supporter and covers the patient's calf and penetrates the shaft of one knee rotation angle, and again penetrates the shaft of the other knee rotation angle while wrapping the knee joint. In addition, the patient's calf is wrapped around the lower support and connected to the rear center of the lower support, using the elastic force of the rubber band to pull the center of the knee rotation angle backwards to help the upper and lower support upright to induce traction of the thigh and calf.

6 is a structural diagram when applying the knee rotation angle center axis of the present invention to the existing registration room KR 20-0431104 'angle control device of the knee joint aid'

Ascending protrusions 430 and rotation protrusions 440 of the present invention to the fixed frame of the angle adjusting device for adjusting the rotation angle of the fixed frame 210 and the rotation frame 110 in multiple stages using the push members (710, 720). And install the slide slide groove 410 and the rotary slide groove 420 in the first cover 730 and the second cover 7400 to raise and lower the upper support and the lower support according to the bending angle of the patient's knee. Let's do it.

7 is a structural diagram combining the rotatable angle adjusting device and the lifting and lowering traction device on the knee rotation angle center axis;

Elasticity of the rotary spring 450 formed with the U-shaped bends 455 and 456 on both ends of the rising slide groove 410 and the rotating slide groove 420 in the knee rotation angle center axis 400 connected to the rotating frame. The fixing hole 480 and the guide groove 470 to install the stopper 460 is installed using the ascending protrusion 430 and the rotary protrusion 440 to the fixed frame 140 is installed.

8 is an operation diagram of the rotatable angle of the knee rotation angle center axis

(2) The fixed frame 140 is caught by the protruding stopper 460 installed on the knee rotation angle center shaft 400 to stop the rotation and the knee rotation angle is fixed.

By using the elasticity of the rotary spring 450 formed with the U-shaped bends 455 and 456 at both ends, the protruding stopper 460 inserted and fixed in the fixing hole 480 is pushed in the opposite direction to the center of rotation axis. Break out of the hall.

(3) The stopper is moved to a desired position by the guide groove 470.

(4) The stopper is inserted and fixed by using the elasticity of the rotation spring in the fixing hole at the desired position to rotate the fixing frame 140 by a desired angle.

9 is an operation view when the patient wearing the knee protector of the present invention

(1) When the patient wears the knee protector of the present invention and the knee is upright at an angle of about 0-10 degrees, the distance between the rotation frame 130 of the upper support and the fixing frame 140 of the lower support is the knee rotation angle center. The upper support 110 ascends upwards from each other about the axis 400 as far as possible and tightens the thighs of the inverted triangle shape of the patient and pushes it upwards so that the weight of the patient is not imposed on the knee joint and is connected to the lower support. Passed through the frame 600 is applied to the sole plate 350 of the ankle protector.

(2) When the patient bends the knee at an angle of about 10-40 degrees while wearing the knee protector of the present invention, the distance between the rotation frame 130 and the fixed frame 140 is in the direction of the knee rotation angle center axis. The upper support of a constant circular shape, which was closely moved and tightly tightened the inverted triangle thigh of the patient, descends downward and escapes, thereby relieving the tightening strength of the thigh of the tightening belt to improve blood circulation between the thigh and the calf.

10 is an operation of attaching the ankle protector to the fixing frame 140 of the lower support installed in the knee protector of the present invention using the connecting frame 600, when the patient's symptoms are not severely worn only the knee protector If the patient's symptoms are severe, wear ankle protectors.

(1) The connecting frame 600, which has a multi-step serrated groove installed in the fixing frame and the ankle protector of the lower support, is set up in accordance with the desired calf length of the patient.

(2) Insert the connecting frame 600, which has formed a multi-step serrated flaw, into a plurality of fixing protrusions 620 installed in the fixing frame of the lower support.

(3) The fixing ring 610 installed on the fixing frame of the lower support is inserted into the connecting frame 600 inserted into the fixing protrusion 620 to fix the fixing frame and the connection.

11 is a structural diagram of the ankle rotation angle center axis of the present invention;

A circular hole 510 is formed so that the peach bone of the patient is inserted into the center of the ankle rotation center axis 500 connected to the connection frame 600. The front stopper 520 and the rear stopper 530 are attached to the fixing hole 540 and the guide groove at the top of the center of the ankle rotation angle center shaft, and the rotation spring 550 having the U-shaped bends 551 and 552 formed at both ends thereof. A locking jaw 570 is formed at the top of the sole plate.

12 is an operation diagram of the ankle rotation angle center axis of the present invention;

(2) The front and

rear stoppers

520 and 530, which are inserted and fixed in the fixing hole 540 by the elasticity of the rotation spring 550 having the U-shaped bends 551 and 552 formed at both ends, are directed toward the center of the rotation shaft. Slide out of the fixing hole.

(3) Move the stopper to the desired position in the guide groove.

(4) The stopper is inserted and fixed to the fixing hole 540 by using the elasticity of the rotation spring 550 at a desired position. Using the front stopper 520, the rear stopper 530 and the locking jaw 570 of the center of the ankle rotation angle axis 500 to set the desired rotation angle range of the sole plate 350.

13 is an operation diagram of the ankle rotation angle center axis and the connecting frame of the present invention;

(1) When the patient tilts the sole plate 350 forward, the locking jaw 570 of the sole plate is caught by the front stopper 520 to form a forward rotation angle.

(2) When the patient tilts the sole plate 350 backward, the locking jaw 570 of the sole plate is caught by the rear stopper 530 to form a rear rotatable angle.

14 is a practical embodiment of the present invention according to the condition of the patient,

(1) Only the knee protector of the present invention can be easily and practically worn and walked on either side of the patient according to the patient's condition or wearing only two of the left and right.

(2) The knee protector attached to the ankle protector of the present invention can be easily and practically worn and walked on either side of the patient or according to the patient's symptoms.

(3) Only the ankle protector of the present invention can be worn and walked on either side of the patient simply or practically depending on whether the patient wears two left or right or according to the patient's symptoms.

The ankle protector and the detachable knee protector of the present invention can be used industrially because it can effectively protect the knee of the patient compared to the existing protector.

Claims

    Rotating spring, stopper, guide groove, fixed hole and ascending slide groove, rotary slide groove and knee guard angle center of the knee protector with rubber bands (300,310,320,330) formed with U-shaped bends (455,456) at both ends ( 400):

  Climbing protrusions 430 and rotary protrusions 440 installed on the fixed frame of the knee protector:

Connection frame 600 formed with a multi-stage groove having a fixed protrusion 620 and a fixed ring 610 and a serrated groove protruding from the fixed frame of the lower support of the knee protector:

  Ankle rotation angle center shaft 500 of the ankle protector having a rotation spring, a stopper, a guide groove, a fixing hole having a U-shaped bend 551, 552 formed at both ends, and a circular hole 510 formed at the center of the shaft.

  Ankle protector with removable accessories and detachable knee protector.
The fixed frame of the lower support installed in the elevated slide groove 410, the rotary slide groove 420 and the knee protector in the center of rotation angle 400 of the knee rotation angle attached to the rotary frame of the upper support installed in the knee protector of claim 1 Ankle protector and detachable knee protector with a raised protrusion 430 and a rotary protrusion 440 installed on the knee.
The rotation spring 450 and the stopper 460 having a U-shaped bend 455 and 456 formed at both ends of the knee rotation angle center shaft 400 attached to the rotation frame of the upper support installed on the knee protector according to claim 1. , Ankle guards with guide grooves 470 and fixing holes 480 and detachable knee guards.
The ankle protector with a rubber band (FIG. 4,300) connected to the lower support 120 and penetrating the center of one knee rotation angle and starting with the upper support 110 installed on the knee protector according to claim 1 Knee protector.
The rubber band (FIG. 5, 310) connected to one of the knee rotation angle center shafts, starting from one knee rotation angle center shaft, and connected to one knee rotation angle center shaft and starting from the lower support, Rubber band (Fig. 5,320), which is connected to the other axis of the knee rotation angle, starting from the lower support, penetrating the axis of the knee rotation angle of one axis, and passing through the axis of the knee rotation angle of the other and connected to the lower support. Ankle protector with a band (Fig. 5,330) installed, removable knee guard.
The connecting frame 600 and the fixing ring 610 having a tooth-shaped multi-step groove for connecting and fixing the fixing protrusion 620 and the ankle protector installed in the fixing frame of the lower support installed in the knee protector of claim 1. ) Ankle guards with detachable knee guards.
The ankle protector provided with a circular hole 510 in the center of the ankle rotation angle center shaft 500 installed in the ankle protector, and a detachable knee protector according to claim 1.
The rotation spring 550, the stopper 520, 530, the guide groove, and the fixing hole 540 having the U-shaped bends 551 and 552 formed at both ends of the ankle rotation angle center shaft 500 installed in the ankle protector according to claim 1. ) Ankle guards with detachable knee guards.