WO2020091145A1

WO2020091145A1 - Wearable chair having changeable seating angle

Info

Publication number: WO2020091145A1
Application number: PCT/KR2019/000518
Authority: WO
Inventors: 배기현; 정경모; 김규정; 윤주영; 현동진
Original assignee: 현대자동차 주식회사; 기아자동차 주식회사
Priority date: 2018-11-02
Filing date: 2019-01-14
Publication date: 2020-05-07
Also published as: KR102588951B1; KR20200051081A

Abstract

Introduced is a wearable chair having a changeable seating angle, the wearable chair comprising: an upper rod which extends in the lengthwise direction to be connected to the thigh of a wearer; a switch which is coupled to the upper rod to be slidable in the lengthwise direction of the upper rod, and is coupled to be fixable so as to block sliding at a plurality of positions; a lower rod which has an upper end coupled to the lower end of the upper rod to be relatively rotatable with respect to each other, extends in the lengthwise direction to be connected to the lower leg of the wearer, and has a lower end coming into contact with the ground at the time of seating of the wearer; and a support rod which has a lower end rotatably coupled to the lower rod and an upper end slidably coupled to the upper rod, and fixes the relative rotation of the upper rod and the lower rod by means of the switch which restrains sliding with the upper rod when the switch is fixed to the upper rod.

Description

Wearable chair with adjustable seating angle

The present invention relates to a wearable chair in which the seating angle is changeable, and relates to a chair that supports a load of the wearer when seated in a state worn by the wearer.

Wearable robots for various purposes, such as assisting muscles in assisting the muscles in the movement of the disabled and the elderly, as well as in the current industrial sites, for rehabilitation treatment for muscular patients, for soldiers carrying heavy warlords, or for industrial sites carrying heavy loads (Wearable Robot) is actively being developed.

In general, a wearable robot is manufactured by organically combining links that perform joint action similar to the human body into a shape that can be worn on the human body. These wearable robots are worn by the user to assist the upper and lower extremity muscles, so that the user can perform high-load work requiring a force beyond the normal human strength limit without the aid of a separate external machine.

However, the active type wearable robot that supports the muscle power by acting on the power has a relatively heavy weight, and there is a problem that a complicated control is required by the controller, and accordingly, there is a problem of low stability and limited seating angle.

Accordingly, a wearable chair of a passive type capable of supporting a large load while having a light weight is required. However, the wearable chair of the passive type according to the prior art had a problem that the seating angle is difficult to change.

The above descriptions as background arts are only for improving understanding of the background of the present invention, and should not be accepted as acknowledging that they correspond to the prior arts already known to those skilled in the art.

KR 10-1755806 B is a related art.

The present invention has been proposed to solve this problem, and is to provide a wearable chair capable of supporting a large load while having a light weight and simply changing a seating angle.

A wearable chair having a seating angle changeable according to the present invention for achieving the above object is extended in the longitudinal direction and connected to the wearer's thigh; A switch slidably coupled to the upper rod in the longitudinal direction of the upper rod but fixedly coupled so that sliding is blocked at a plurality of positions; The upper end is rotatably coupled to each other at the lower end of the upper rod, and extends in the longitudinal direction to be connected to the lower end of the wearer, and the lower end is in contact with the ground when the wearer seats; And the lower portion is rotatably coupled to the lower rod, and the upper portion is slidably coupled to the upper rod, and when the switch is fixed to the upper rod, sliding with the upper rod is prevented by the switch to prevent relative rotation of the upper rod and the lower rod. It includes; fixing the support rod.

An engaging protrusion protruding toward the upper rod is formed at one end of the switch, and an engaging groove is formed at a plurality of positions of the upper rod so that the sliding between the switch and the upper rod is prevented when the engaging projection is inserted into the engaging groove. .

The switch is composed of a body portion rotatably coupled to the main body portion with a coupling protrusion, and a rotation portion formed with a first bearing at one end. When the rotation portion is rotated relative to the main body portion, the first bearing is exposed in the protruding direction of the coupling protrusion. And the engaging projection can be released from the engaging groove.

A support portion protruding in a direction opposite to the projecting direction of the engaging projection is formed on the main body portion, and the other end portion of the rotation portion extends in an oblique direction with the support body, and as the other end portion of the rotation portion is pressed toward the support side, the rotation portion can be rotated relative to the main body portion. have.

At the position of the switch where the engaging projection of the switch is inserted into the engaging groove of the upper rod, magnets that exert attraction forces on the switch and the upper rod may be provided to face each other.

The switch is provided with a plurality of magnets spaced apart from the engaging projections, and the upper rod is provided with a magnet corresponding to a plurality of magnets provided in the switch at the position of the switch where the engaging projection of the switch is inserted into the engaging groove of the upper rod, respectively. Can be.

A sliding portion coupled to the lower rod slidably in the longitudinal direction of the lower rod; A lower fixation part directly coupled to the wearer's lower part; One end is coupled to the upper portion of the lower fixing portion, the other end is rotatably coupled to the first connection portion; And one end is rotatably coupled to the lower portion of the lower fixing portion, the other end is rotatably coupled to the lower portion of the lower rod; a second connection portion may further include.

A rail formed in the longitudinal direction is provided on the lower rod, the sliding portion is slidable along the rail in the longitudinal direction of the lower rod, and a first elastic body that applies elastic force in a direction of pulling the sliding portion downward may be formed on the lower rod.

On the lower rod, one end is fixed to the lower rod, and the other end is coupled to the lower end of the support rod to form a second elastic body that applies rotational force to rotate the support rod in the same direction as the upper rod is extended relative to the lower rod. Can be.

A second bearing that rotates so that the support rod slides along the upper rod may be formed at the upper end of the support rod.

The second bearing is coupled to the support rod so as to be movable inside the pressurizing groove formed at the upper end of the support rod so as to be exposed to the outside of the support rod in the direction of the upper rod or inserted into the support rod, and the support rod has a second bearing A third elastic body that presses the second bearing so as to be exposed to the outside of the upper rod may be formed.

According to the wearable chair that can change the seating angle of the present invention, it is possible to simply change the seating angle as the fixed position of the switch changes along the upper rod.

In addition, when the wearer is seated, when the lower rod is lowered relative to the lower fixation part and the lower end of the lower rod contacts the ground, the lower part of the lower rod is spaced apart from the wearer's foot by a four-section link structure, thereby improving seating stability. It has an improved effect.

In addition, in the position where the wearer stands up, the lower end of the lower rod is maintained in an elevated state so as not to contact the ground, thereby minimizing interference with the wearer's walking.

1 is a cross-sectional view of a wearable chair with a variable seating angle according to an embodiment of the present invention.

2 to 4 illustrate various seating angles of a wearable chair with a changeable seating angle according to an embodiment of the present invention.

5A to 5B illustrate a coupling relationship between an upper rod and a switch of a wearable chair having a variable seating angle according to an embodiment of the present invention.

6 is a view showing a state of wearing a wearable chair with a variable seating angle according to an embodiment of the present invention.

Figure 7 shows the upper end of the support rod of the wearable chair with a change in the seating angle according to an embodiment of the present invention.

Specific structural or functional descriptions with respect to the embodiments of the present invention disclosed in the present specification or the application have been exemplified for the purpose of illustrating the embodiments according to the present invention, and the embodiments according to the present invention may be implemented in various forms. And may not be construed as limited to the embodiments described in this specification or application.

Since the embodiment according to the present invention can be applied to various changes and can have various forms, specific embodiments will be illustrated in the drawings and described in detail in the present specification or application. However, this is not intended to limit the embodiment according to the concept of the present invention to a specific disclosure form, and it should be understood that it includes all modifications, equivalents, or substitutes included in the spirit and scope of the present invention.

Terms such as first and / or second may be used to describe various components, but the components should not be limited by the terms. The above terms are only for the purpose of distinguishing one component from another component, for example, without departing from the scope of rights according to the concept of the present invention, the first component may be referred to as the second component, and similarly The second component may also be referred to as the first component.

When an element is said to be "connected" or "connected" to another component, it is understood that other components may be directly connected to or connected to the other component, but other components may exist in the middle. It should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that no other component exists in the middle. Other expressions describing the relationship between the components, such as "between" and "immediately between" or "adjacent to" and "directly neighboring to," should be interpreted similarly.

The terms used in this specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as “include” or “have” are intended to indicate that a feature, number, step, action, component, part, or combination thereof described is present, and one or more other features or numbers. It should be understood that it does not preclude the existence or addability of, steps, actions, components, parts or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person skilled in the art to which the present invention pertains. Terms, such as those defined in a commonly used dictionary, should be interpreted as meanings consistent with meanings in the context of related technologies, and are not to be interpreted as ideal or excessively formal meanings unless explicitly defined herein. .

Hereinafter, the present invention will be described in detail by explaining preferred embodiments of the present invention with reference to the accompanying drawings. The same reference numerals in each drawing denote the same members.

1 is a cross-sectional view of a wearable chair with a variable seating angle according to an embodiment of the present invention, and FIGS. 2 to 4 are various seating positions of a wearable chair with a variable seating angle according to an embodiment of the present invention. It shows the angle.

1 to 4, a wearable chair with a changeable seating angle according to an embodiment of the present invention includes an upper rod 100 extending in a longitudinal direction and connected to a wearer's thigh; A switch 400 slidably coupled to the upper rod 100 in the longitudinal direction of the upper rod 100 but fixedly coupled so that sliding is blocked at a plurality of positions; The lower end 200 is coupled to the lower end of the upper rod 100 so as to be rotatable relative to each other, extends in the longitudinal direction to be connected to the wearer's lower part, and the lower end is in contact with the ground when the wearer seats; And the lower portion is rotatably coupled to the lower rod 200, the upper portion is slidably coupled to the upper rod 100, and the upper rod by the switch 400 when the switch 400 is fixed to the upper rod 100. It includes; a support rod (300) for fixing the relative rotation of the upper rod (100) and the lower rod (200) is prevented from sliding with (100).

The upper rod 100 has a configuration corresponding to the wearer's thigh, and may be directly coupled to the wearer's thigh with a harness or coupled to the thigh support 110 and the harness to be connected to the wearer's thigh. The upper rod 100 may extend in a longitudinal direction parallel to the direction in which the wearer's thigh is extended.

The lower rod 200 has a configuration corresponding to the wearer's lower thigh, and may be coupled to the wearer's lower thigh through a harness directly coupled to the wearer's lower thigh, or through the lower thigh fixture 210 coupled directly to the wearer's thigh. The lower rod 200 may extend in a longitudinal direction parallel to the direction in which the wearer's lower thigh extends.

The upper end of the lower rod 200 may be hinged to the lower end of the upper rod 100 through the rotation center 500 so as to be rotatable relative to each other.

The lower end 280 of the lower rod 200 may be in contact with the ground when seated by the wearer. In particular, it can contact the ground behind the wearer's feet to support the wearer's sitting position. The lower rod 200 has a structure that can be adjusted in length according to the wearer's height in a structure capable of sliding and fixing, and the lower portion 280 of the lower rod 200 in contact with the ground has a large frictional force such as a rubber material. It may be formed of a material.

The support rod 300 has a lower end rotatably coupled to the lower rod 200, and an upper end slidably coupled to the upper rod 100. Therefore, as the upper rod 100 and the lower rod 200 are rotated relative to each other, the lower end of the support rod 300 rotates relative to the lower rod 200, and the upper end of the support rod 300 is upper rod 100 ).

The upper rod 100 is provided with a switch 400 slidably coupled in the longitudinal direction of the upper rod 100. The switch 400 may be slidable along the upper rod 100 in the same direction as or parallel to the direction in which the upper end of the support rod 300 slides.

However, the switch 400 may be fixedly coupled to the upper rod 100 so that sliding is blocked at a plurality of positions. The switch 400 may be coupled to be fixed to the upper rod 100 in a continuous position or to be fixed to the upper rod 100 in a plurality of spaced apart positions.

When the switch 400 is fixed to the upper rod 100, the support rod 300 is prevented from sliding with the upper rod 100 by the switch 400, so that the relative rotation of the upper rod 100 and the lower rod 200 is prevented. This can be fixed. As the fixed position of the switch 400 is changed, the angle at which the relative rotation of the upper rod 100 and the lower rod 200 is blocked may be varied.

At the time of seating of the wearer, the load of the wearer is applied to the upper rod 100, and when the relative rotation angle between the lower rod 200 and the upper rod 100 is fixed by the support rod 300, the upper rod 100 The load of the wearer being applied is transmitted to the lower rod 200 through the support rod 300.

Accordingly, the seating angle, which is an angle between the lower rod 200 and the upper rod 100 when the wearer is seated, may be changed as the position where the switch 400 is fixed is changed along the upper rod 100. Accordingly, the wearer has the effect of simply changing the seating angle.

5A to 5B, the switch 400 may be formed to correspond to the shape of the upper end of the support rod 300. In particular, it may be formed in a shape surrounding the upper end of the support rod 300. That is, as illustrated, the switch 400 supporting the upper end of the rounded support rod 300 may be formed in a shape surrounding the upper end of the support rod 300. Accordingly, the switch 400 may be pressurized by dispersing the force supported by the support rod 300.

The coupling protrusion 411 protruding toward the upper rod 100 is formed at one end of the switch 400, and the coupling groove 120 is formed at a plurality of positions of the upper rod 100 to engage the coupling protrusion 411. When inserted into the groove 120 may be fixed so that the sliding between the switch 400 and the upper rod 100 is prevented.

The switch 400 extends in the longitudinal direction of the upper rod 100, and a coupling protrusion 411 may be formed at one end. Coupling grooves 120 may be formed at a plurality of positions spaced apart in the longitudinal direction of the upper rod 100. The engaging projection 411 protrudes toward the upper rod 100 and is inserted into a plurality of engaging grooves 120 formed in the upper rod 100, so that the switch 400 does not slide along the upper rod 100. Can be fixed.

The switch 400 is composed of a body part 410 on which a coupling protrusion 411 is formed and a rotation part 420 rotatably coupled to the body part 410 and having a first bearing 421 formed at one end thereof, and a rotation part ( When 420 is rotated relative to the body portion 410, the first bearing 421 is exposed in the protruding direction of the engaging projection 411 and the engaging projection 411 can be released from the engaging groove 120.

The body portion 410 of the switch 400 extends in the longitudinal direction of the upper rod 100, and the engaging projection 411 may be formed at one end of the body portion 410. The rotating part 420 is formed with a first bearing 421 at one end, and may be rotatably coupled to the body part 410.

The first bearing 421 of the rotating portion 420 is inserted into the body portion 410 while the engaging projection 411 of the body portion 410 is inserted into the engaging groove 120, and the rotating portion 420 is When the relative rotation relative to the main body portion 410, the first bearing 421 is exposed in the protruding direction of the engaging projection 411 so that the engaging projection 411 can be released from the engaging groove 120. That is, as the first bearing 421 is rotated to be exposed in the protruding direction of the engaging projection 411, the engaging projection 411 is released from the engaging groove 120.

Accordingly, the first bearing 421 is exposed in contact with the upper rod 100 in a state in which the engaging projection 411 and the engaging groove 120 are released, so that the switch 400 can slide smoothly. Has an effect.

The body portion 410 is formed with a support 412 protruding in a direction opposite to the projecting direction of the engaging projection 411, the other end of the rotating portion 420 extends in an oblique direction with the support 412, the rotating portion 420 The rotation part 420 may be rotated based on the main body part 410 as the other end of the pressure is pressed toward the support 412 side.

The support 412 is formed so as to be integrally formed with the main body 410 or fixed securely, and the other end of the rotating part 420 is in an oblique direction with the support 412 in a direction opposite to the protruding direction of the engaging projection 411. Can be extended. That is, the rotating part 420 has one end exposed in the protruding direction of the engaging projection 411, and the other end penetrates through the main body 410 so as to extend in the direction opposite to the protruding direction of the engaging projection 411, so that the main body is in the middle. It can be rotatably combined with 410.

The other end of the rotating part 420 extends in an oblique direction with the support 412, and when the other end of the rotating part 420 is pressed toward the support 412, the rotating part 420 may be rotated based on the main body 410. . Specifically, when the first bearing 421 formed at one end of the rotating part 420 is inserted into the body part 410, the other end of the rotating part 420 extends in an oblique direction with the support 412, and the rotating part When the other end portion of 420 is pressed toward the support 412 side and is parallel to the support 412, the first bearing 421 is rotated so as to be exposed in the protruding direction of the engaging projection 411, so that the engaging projection 411 is coupled. It may be deviated from 120.

Therefore, it is possible to simply release the fixing of the switch 400 by pressing the other end of the rotating portion 420, and accordingly has the effect that the position change of the switch 400 can be easily manipulated.

Magnets that attract each other to the switch 400 and the upper rod 100 at the position of the switch 400 where the engaging projection 411 of the switch 400 is inserted into the engaging groove 120 of the upper rod 100 (130, 430) may be provided to face each other, respectively. In particular, the switch 400 and the upper rod 100 are provided with N poles and S poles of the

magnets

130 and 430 facing each other, so that an attractive force can be applied.

Each of the switch 400 and the upper rod 100 may be provided with

magnets

130 and 430 that attract each other. Here, the

magnets

130 and 430 of the switch 400 and the upper rod 100 have relatively weak attraction, and the coupling protrusion 411 of the switch 400 is inside the coupling groove 120 of the upper rod 100 It is intended to induce insertion into. In order to insert the coupling protrusion 411 into the inside of the coupling groove 120 provided at a position spaced apart from each other, the magnetic force of the

magnets

130 and 430 is used to position the switch 400 to a predetermined position.

Sliding of the switch 400 and the upper rod 100 can be prevented by attraction by the magnetic force of the

magnets

130 and 430. However, the attraction by the magnetic force is relatively weak, and when using the

magnets

130 and 430 having a strong attraction, there is a problem in that it is difficult to change the position of the switch 400.

A plurality of

magnets

130 and 430 are spaced apart from the coupling protrusion 411 on the switch 400, and the coupling protrusions 411 of the switch 400 are provided on the upper rod 100 by

magnets

130 and 430. The position of the switch 400 inserted into the coupling groove 120 of the rod 100 may be provided at a position corresponding to the plurality of

magnets

130 and 430 provided in the switch 400, respectively.

The

magnets

130 and 430 may be positioned apart from the engaging projection 411 so that the attraction of the

magnets

130 and 430 does not interfere with the separation of the engaging projection 411. The plurality of

magnets

130 and 430 are spaced apart from each other so that the switch 400 can be stably supported by the upper rod 100 by the attraction force by the magnetic force.

As shown, the switch 400 may be provided with two

magnets

130 and 430 spaced apart, and the coupling groove 120 is arranged at a predetermined separation distance in the upper rod 100, and the coupling of the switch 400 is performed.

Magnets

130 and 430 may be provided in the upper rod 100 for each position of the switch 400 into which the protrusion 411 is inserted into the coupling groove 120 of the upper rod 100, and the upper rod 100 The

magnets

130 and 430 may also be arranged at equal intervals to be partially overlapped.

A sliding portion 230 coupled to the lower rod 200 to be slidable in the longitudinal direction of the lower rod 200; A lower fixation part 210 directly coupled to the wearer's lower part; One end is coupled to the upper portion of the lower fixing portion 210, the other end is rotatably coupled to the sliding portion 230, the first connection portion 240; And one end is rotatably coupled to the lower portion of the lower fixing portion 210, the other end is rotatably coupled to the lower portion of the lower rod 200, the second connection portion 250; may further include.

The lower thigh fixing part 210 may be directly coupled to the lower thigh of the wearer through a harness. The lower thigh fixing part 210 may be formed to be in close contact with the lower thigh of the wearer.

The sliding portion 230 is coupled to the lower rod 200 to be slidable in the longitudinal direction of the lower rod 200 and is connected to the lower leg fixing portion 210 through the first connecting portion 240. One end of the first connection portion 240 may be firmly coupled to the upper portion of the lower fixation portion 210, and the other end of the first connection portion 240 may be rotatably coupled to the sliding portion 230. Conversely, one end of the first connection portion 240 is rotatably coupled to the upper portion of the lower fixation portion 210, and the other end of the first connection portion 240 can be firmly coupled to the sliding portion 230.

The second connection part 250 connects the lower leg fixing part 210 and the lower rod 200. One end of the second connecting portion 250 is rotatably coupled to the lower portion of the lower fixation portion 210, and the other end of the second connecting portion 250 can be rotatably coupled to the lower portion of the lower rod 200.

Referring to FIG. 6 further, by the above configuration, the lower fixation part 210 is coupled to the lower rod 200 in a four-section link structure. Accordingly, the lower leg fixing part 210 is coupled to the lower rod 200 to be slidably slidably in the longitudinal direction of the lower rod 200, and the distance from the lower rod 200 can be varied as it is slid.

According to this configuration, when the wearer is seated, the lower rod 200 is lowered based on the lower fixing part 210, so that the lower portion 280 of the lower rod 200 is in contact with the ground. The lower end of the rod 200 is positioned to be spaced apart from the wearer's foot, thereby improving seating stability.

In addition, the position in which the lower end portion 280 of the lower rod 200 contacts the ground is always constant by the four-section link structure. That is, when the wearer seats, the lower rod 200 is spaced apart from the rear of the wearer's lower part by a four-section link structure as the lower rod 200 descends, and thus the lower end 280 of the lower rod 200 is grounded. The contacting position may contact the ground at a position spaced apart from the rear of the wearer's foot.

The lower rod 200 is provided with a rail 210 formed in the longitudinal direction, the sliding portion 230 is slidable along the rail 210 in the longitudinal direction of the lower rod 200, and the sliding portion 230 is downward. The first elastic body 260 exerting elastic force in the pulling direction may be formed on the lower rod 200.

That is, the sliding portion 230 is coupled to be slidable on the rail 210 formed in the longitudinal direction of the lower rod 200, and the first elastic body 260 has a sliding portion 230 based on the lower rod 200. It can be formed to be pulled downward. The lower rod 200 may be pulled upward based on the sliding portion 230 by the elastic force of the first elastic body 260.

Accordingly, the lower rod 200 is pulled upward based on the lower support portion coupled to the lower leg of the wearer while the load of the wearer is not applied in a standing position. Therefore, in the position in which the wearer stands up, the lower end portion 280 of the lower rod 200 is maintained in an elevated state so as not to contact the ground, thereby minimizing interference with the wearer's walking.

In the lower rod 200, one end is fixed to the lower rod 200, the other end is coupled to the lower end of the support rod 300 in the same direction as the direction in which the upper rod 100 is extended relative to the lower rod 200. A second elastic body 290 that applies rotational force to rotate the support rod 300 may be formed.

The second elastic body 290 may apply a rotational force to rotate the support rod 300 in the same direction as the upper rod 100 is extended relative to the lower rod 200. That is, as shown, by applying a rotational force to rotate the support rod 300 counterclockwise at the lower end of the support rod 300, the upper end of the support rod 300 is always supported to contact the upper rod 100 The rotational force may be applied such that the upper end of the rod 300 is rotated toward the upper rod 100.

As a configuration for this, one end of the second elastic body 290 is fixed to the lower rod 200 and the other end can be directly coupled to the lower end of the support rod 300. Or, it may be indirectly coupled through a separate configuration of the ring shape as shown.

In another embodiment, while one end is fixed to the lower rod 200, the support rod 300 surrounds a rotational center that rotates relative to the lower rod 200, and the other end is coupled to the lower end of the support rod 300. It may have a configuration of a coil-shaped spring.

The rotational force of the second elastic body 290 does not have a strong elastic force such that the upper rod 100 rotates relative to the lower rod 200, and the upper end of the support rod 300 simply contacts when sliding the upper rod 100 It is enough to keep it. Accordingly, the upper end of the support rod 300 is always in contact with the upper rod 100 and has the effect of sliding on the upper rod 100, and the second bearing 310, which will be described later, is always in contact with the upper rod 100 The support rod 300 has the effect of sliding smoothly.

7A to 7B illustrate an upper end of a support rod of a wearable chair with a seating angle changeable according to an embodiment of the present invention.

7A to 7B, a second bearing 310 that rotates so that the support rod 300 slides along the upper rod 100 may be formed at an upper end portion of the support rod 300. The second bearing 310 is a bearing coupled to the upper end of the support rod 300 so that the support rod 300 rotates around a rotation axis perpendicular to the longitudinal direction of the upper rod 100 in which the support rod 300 slides along the upper rod 100 Can be Accordingly, when the support rod 300 is slid along the upper rod 100 by the second bearing 310, it has an effect capable of smooth movement.

In particular, as shown in FIG. 7A, the second bearing 310 is exposed to the outside of the support rod 300 in the direction of the upper rod 100, or is inserted into the support rod 300 as shown in FIG. 7B. It may be coupled to the support rod 300 to be movable in the interior of the pressing groove 320 formed at the upper end of the support rod 300.

In addition, a third elastic body 330 that presses the second bearing 310 so that the second bearing 310 is exposed to the outside of the upper rod 100 along the pressing groove 320 is formed on the support rod 300. Can be.

The second bearing 310 is coupled to the upper end of the support rod 300, and may be coupled inside the pressure groove 320 to enable some relative movement with the support rod 300. The pressing groove 320 is formed at the upper end of the support rod 300 so that the rotating shaft of the second bearing 310 can be moved, and the second bearing 310 is the upper rod 100 inside the pressing groove 320 It may be moved to be exposed outside the side or inserted into the support rod 300.

The third elastic body 330 may apply elastic force to the support rod 300 to press the second bearing 310 so that the second bearing 310 is exposed to the outside of the upper rod 100 along the pressing groove 320. have. Accordingly, when there is no separate external force, the second bearing 310 may be exposed outside the upper rod 100 by the third elastic body 330.

With the above configuration, the second bearing 310 can be smoothly slid along the upper rod 100 while the support rod 300 is exposed to the outside of the upper end of the support rod 300 by the third elastic body 330. have. However, when the support rod 300 is pressed as in the seating of the wearer, the second bearing 310 overcomes the elastic force of the third elastic body 330 and is inserted into the support rod 300 to be protected from being damaged by external force. It has an effect.

Although illustrated and described in connection with a specific embodiment of the present invention, it is understood in the art that the present invention may be variously improved and changed within the limits that do not depart from the technical spirit of the present invention provided by the following claims. It will be obvious to those of ordinary skill.

[Description of codes]

100: upper rod 200: lower rod

300: support rod 400: switch

410: body portion 420: rotating portion

421: first bearing 130, 430: magnet

310: second bearing 500: rotation center

Claims

An upper rod extending in the longitudinal direction and connected to the wearer's thigh;

A switch slidably coupled to the upper rod in the longitudinal direction of the upper rod but fixedly coupled so that sliding is blocked at a plurality of positions;

The upper end is rotatably coupled to each other at the lower end of the upper rod, and extends in the longitudinal direction to be connected to the lower end of the wearer, and the lower end is in contact with the ground when the wearer seats; And

The lower part is rotatably coupled to the lower rod, the upper part is slidably coupled to the upper rod, and when the switch is fixed to the upper rod, sliding with the upper rod is prevented by the switch to fix the relative rotation of the upper rod and the lower rod. Support rod; Wearable chair that can change the seating angle including.
The method according to claim 1,

A coupling protrusion protruding toward the upper rod is formed at one end of the switch, and a coupling groove is formed at a plurality of positions of the upper rod so that the sliding between the switch and the upper rod is prevented when the coupling protrusion is inserted into the coupling groove. Wearable chair with adjustable seating angle.
The method according to claim 2,

The switch is composed of a body part rotatably coupled to the main body part with a coupling protrusion, and a rotation part having a first bearing at one end,

When the rotating part is rotated relative to the main body part, the first bearing is exposed in the protruding direction of the engaging projection and the seating angle is changeable and wearable chair characterized in that the engaging projection is detached from the engaging groove.
The method according to claim 3,

The main body portion is formed with a support projecting in a direction opposite to the protruding direction of the engaging projection, and the other end portion of the rotating portion extends in an oblique direction with the support portion so that the rotating portion is rotated relative to the main body portion as the other end portion of the rotating portion is pressed toward the support side. Wearable chair with a variable seating angle.
The method according to claim 2,

A wearable chair with a changeable seating angle, characterized in that magnets that exert attraction to each other on the switch and the upper rod are provided at positions of the switch where the engaging projection of the switch is inserted into the engaging groove of the upper rod.
The method according to claim 5,

The switch is provided with a plurality of magnets spaced apart from the engaging protrusions, and the upper rod is provided at a position corresponding to a plurality of magnets provided on the switch at the position of the switch where the engaging projection of the switch is inserted into the engaging groove of the upper rod. Wearable chair with a variable seating angle, characterized in that.
The method according to claim 1,

A sliding portion coupled to the lower rod slidably in the longitudinal direction of the lower rod;

A lower fixation part directly coupled to the wearer's lower part;

One end is coupled to the upper portion of the lower fixing portion, the other end is rotatably coupled to the first connection portion; And

A wearable chair having a seating angle changeable feature, further comprising: a second connection part rotatably coupled to a lower portion of the lower end fixing portion and rotatably coupled to a lower portion of the lower rod.
The method according to claim 7,

A rail formed in the longitudinal direction is provided on the lower rod, and the sliding portion is slidable along the rail in the longitudinal direction of the lower rod,

A wearable chair having a variable seating angle, characterized in that a first elastic body that exerts an elastic force in a direction of pulling the sliding portion is formed on the lower rod.
The method according to claim 1,

On the lower rod, one end is fixed to the lower rod, and the other end is coupled to the lower end of the support rod to form a second elastic body that applies rotational force to rotate the support rod in the same direction as the upper rod is extended relative to the lower rod. Wearable chair with a variable seating angle.
The method according to claim 1,

A wearable chair having a variable seating angle, wherein a second bearing is rotated so that the support rod is slid along the upper rod.
The method according to claim 10,

The second bearing is coupled to the support rod so as to be movable in the interior of the pressing groove formed at the upper end of the support rod to be exposed to the outside of the support rod in the direction of the upper rod or inserted into the support rod,

A wearable chair having a changeable seating angle, characterized in that a third elastic body for pressing the second bearing is formed on the support rod so that the second bearing is exposed to the outside of the upper rod along the pressing groove.