WO2024262764A1 - Wearable auxiliary device - Google Patents

Abstract

The present invention relates to a wearable auxiliary device capable of providing an auxiliary force, the magnitude of which is adjustable, for an upward motion of the arms of a wearer, improving wearing convenience, and improving the degree of freedom of movement of the arms and shoulders of the wearer.

Description

Wearable Assistive Device

The present invention relates to an upper arm assistance unit and a wearable assistance device using the same. More specifically, the present invention relates to a wearable assistance device that can provide an assistive force that can be adjusted in size for the upward movement of the wearer's arm, has improved wearing convenience, and has improved freedom of movement of the wearer's arm and shoulder.

Typically, workers in logistics centers, manufacturing plants where assembly processes are performed, construction sites, etc. often perform work by raising their arms upward for long periods of time.

In these work environments, there are problems such as high upper body fatigue, difficult long-term work, and pain and injuries to the workers' arms and shoulders.

Recently, various types of wearable robots or assistive devices have been introduced for workers in such work environments. However, they are heavy and bulky, cannot adjust the assistive power according to the difference in the worker's upper body muscle strength, are not easy to put on without the help of a third party, and often lack the degree of freedom of joints for various upper body movements.

The present invention aims to provide a wearable assistive device capable of providing adjustable assistance for upward movement of a wearer's arm, improving wearing convenience, and enhancing the degree of freedom of movement of the wearer's arm and shoulder.

In order to solve the above problem, the present invention can provide an auxiliary device for a worker, including a back panel member worn on the upper body of a wearer; a pair of upper arm auxiliary units connected to the upper and lower left and right sides of the back panel member via connecting members to provide upward elastic auxiliary force to the left and right upper arms of the wearer; each of the upper arm auxiliary units includes an auxiliary force generating unit including an elastic member and a support link arranged in parallel with the elastic member; and an upper arm support unit including a drive link rotatably connected to an upper end of the support link of the auxiliary force generating unit about a drive shaft, the drive link having one end connected to the elastic member; a folding link selectively foldably connected to the other end of the drive link and a wearing member mounted on the folding link to support a lower portion of the upper arm of the wearer.

In this case, the back panel member is configured to include a vertical portion arranged along the wearer's spine, and a pair of upper branch portions and a pair of lower branch portions branching from the upper and lower portions toward the wearer's upper arm joints and hip joints, respectively, and each of the upper arm auxiliary units can be connected to the upper arm auxiliary unit via an upper connecting member or a lower connecting member at the upper branch portion and the lower branch portion of the back panel member, respectively.

Here, the climbing member can be connected to the driving shaft via the upper connecting member at the upper branch portion.

In addition, a ball joint is provided on the inner end of the upper connecting member so that it can be rotatably mounted on the upper branch of the climbing member.

In addition, a ball joint is provided at the bottom of the support link so that it can be rotatably mounted on the lower connecting member.

In addition, the drive link may have a bend formed around the drive shaft, and the bend may be positioned between one end and the other end of the drive link.

Here, the elastic member is a coil spring, and in order to control the upper arm's upward assist force by the elastic member, an upper arm assist force adjustment unit whose connection position at the upper end of the elastic member can be changed may be provided at one end of the driving link.

In this case, the upper end of the elastic member is mounted on a through-shaft installed to vertically penetrate the upper arm auxiliary force control unit, and the upper arm auxiliary force control unit may be configured to include a plurality of parallel mounting grooves in which the through-shaft can be secured and a plurality of connecting grooves connecting the mounting grooves, and the through-shaft can be displaced.

Here, the driving link further includes an auxiliary force control lever that is connected to the through shaft and is movably mounted on one outer surface of the driving link, and the auxiliary force control lever can slide in the inclined direction of the mounting groove.

In addition, a fixing unit in the form of an elastic lever clip having a hook for preventing rotation of the folding link may be provided at the other end of the driving link.

In this case, the hook of the fixed unit supports the lower end of the folding link, but when the hook of the fixed unit is operated to release the lower end support state of the folding link, the folding link can be folded downward with respect to the other end of the driving link.

Here, the driving link is configured as a double frame structure with a slot formed on the inside, so that the folding link can be deployed with the slot inserted.

In addition, the driving link has a mounting groove formed into which the hook of the fixed unit is mounted, and the slot of the driving link can be blocked while the hook portion of the fixed unit is mounted in the mounting groove.

In addition, an anti-loosening plate may be further provided to prevent the fixed unit from being exposed to the outside and from being loosened within a predetermined angle range depending on the angle of the driving link.

According to the wearable assistive device according to the present invention, it is possible to provide elastic assistive force that can be adjusted in size for the upward movement of the wearer's arm, and the elastic assistive force can be adjusted by the wearer manipulating the adjustment lever of the upper arm assistive force adjustment unit without the assistance of a third party.

In addition, according to the wearable auxiliary device according to the present invention, the upper arm support part constituting the upper arm auxiliary unit is provided with a folding link that is selectively foldable with respect to a driving link to which an elastic auxiliary torque is applied, thereby increasing the convenience of the wearing process of the wearable auxiliary device.

In addition, according to the wearable auxiliary device according to the present invention, since a pair of upper arm auxiliary units are connected to the climbing member in a ball joint manner, the freedom of movement of the wearer's two arms can be improved and the ease of assembly and maintenance can be increased.

Figure 1 illustrates a front perspective view and a rear perspective view of a wearer wearing an assistive device for workers according to the present invention.

FIGS. 2 and 3 illustrate rear and front perspective views of one embodiment of a worker's assistant according to the present invention.

Figures 4 and 5 illustrate a perspective view and an exploded perspective view of an upper arm auxiliary unit of a wearable auxiliary device according to the present invention.

Figure 6 is a perspective view showing a folding link forming an upper arm support portion of the upper arm auxiliary unit in a folded state.

Figure 7 illustrates a process of increasing or decreasing upper arm assistance power in an upper arm assistance power control unit of an upper arm assistance unit of a wearable auxiliary device according to the present invention.

Figure 9 illustrates a state in which a wearable assistive device is worn by a wearer with a folding link forming an upper arm support portion of an upper arm assist unit folded.

FIG. 10 illustrates a state in which the wearer's upper arm is mounted on the wearing member of the folded folding link while wearing the wearable auxiliary device illustrated in FIG. 9.

Figure 11 illustrates an example of a movement in which the wearer illustrated in Figure 10 lifts the upper arm to perform an upward operation.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed contents can be thorough and complete, and so that the spirit of the invention can be sufficiently conveyed to those skilled in the art. Like reference numerals represent like elements throughout the specification.

FIG. 1 illustrates a front perspective view and a rear perspective view of a wearer wearing a wearable auxiliary device (1) according to the present invention, FIGS. 2 and 3 illustrate rear and front perspective views of one embodiment of a wearable auxiliary device (1) according to the present invention, FIGS. 4 and 5 illustrate a perspective view and an exploded perspective view of an upper arm auxiliary unit of a wearable auxiliary device (1) according to the present invention, and FIG. 6 illustrates a perspective view of a folding link (160) constituting an upper arm support portion (102) of the upper arm auxiliary unit in a folded state.

The wearable assistive device (1) according to the present invention can be provided to provide upward assistive force to the upper arms of workers who perform work by raising their arms upward for long periods of time in a logistics center, a manufacturing plant where an assembly process is performed, a construction site, etc., to reduce work fatigue and pain and assist in insufficient muscle strength.

In the case of the above upward work, in addition to the weight of the work tools, etc., the weight of the wearer's upper arm itself exists, so simply maintaining the upward work posture causes considerable fatigue and pain in the upper arm muscles to the worker, reducing the continuity of the work, so continuous assistance with upper arm muscle strength is urgently needed.

To this end, the auxiliary device for a worker according to the present invention may be configured to include a climbing member (200) and a pair of upper arm auxiliary units (100a, 100b) mounted on the climbing member (200), so that each upper arm auxiliary unit assists the left and right upper arms.

That is, the worker's auxiliary device according to the present invention is configured in the form of a suit worn on the upper body, and upper arm auxiliary units (100a, 100b) are mounted on the left and right sides of the climbing member (200) constituting the worker's auxiliary device according to the present invention to assist each upper arm.

The above-mentioned climbing member (200) is a component worn on the wearer's climbing member, and in addition to a metal material, it may be composed of a material such as a resin material or fiber-reinforced plastic to reduce weight.

Specifically, the above-mentioned climbing member (200) is configured to include a vertical portion (210) arranged along the wearer's spine, a pair of upper branch portions (220) and a pair of lower branch portions (230) branching from the upper and lower portions of the vertical portion (210) toward the wearer's upper arm joints and hip joints, respectively, and may be configured in the shape of, for example, an 'X' or '工'.

Each of the upper arm auxiliary units (100a, 100b) can be connected to the upper arm auxiliary unit via the upper connecting member (310) or the lower connecting member (330) at the upper branch portion (220) and the lower branch portion (230) of the climbing member (200), respectively.

The upper and lower parts of the upper arm auxiliary unit can be connected through each upper connecting member (310) or lower connecting member (330). The reason for connecting the upper arm auxiliary unit through the upper connecting member (310) or lower connecting member (330) instead of directly connecting or fixing the upper plate member (200) and the upper arm auxiliary unit is to provide freedom of movement to the wearer.

Accordingly, each upper connecting member (310) or lower connecting member (330) and each upper arm auxiliary unit (100a, 100b) can be connected in a flexible connection manner using a ball joint or the like.

Accordingly, since a pair of upper arm auxiliary units (100a, 100b) are connected to the climbing member (200) in a ball joint manner, the freedom of movement of the wearer's arms can be improved, and assembly and maintainability can be improved.

As shown in FIGS. 2 and 3, a ball joint (311) is provided on the inner end of the upper connecting member (310) so that it can be rotatably mounted on the upper branch portion (220) of the climbing member (200).

A ball joint (211) is provided on the inner end of the upper connecting member (310), and the ball joint (311) is rotatably mounted on the upper branch portion (220) of the climbing member (200), and the upper branch portion (220) can be equipped with a joint cover (250) for rotatably supporting the ball joint (211).

The above-mentioned back panel member (200) may further include an extension member (240) that is configured to be mounted on the wearer's back panel and extends across the wearer's shoulder to the chest or collarbone area.

The extension member (240) is made of a more flexible material than the above-mentioned climbing member (200) and can be connected to a band member (b) or suit member (s) that supports the chest area from the collarbone area across the wearer's shoulder.

The upper arm auxiliary unit (100a, 100b) can provide upward assist force to the wearer's upper arm by being connected to the upper branch (220) and the lower branch (230) of the upper plate member (200) via the upper connecting member (310) and the lower connecting member (330), respectively.

In addition, the upper arm auxiliary unit may be configured to include an auxiliary force generating unit (101) that provides elastic auxiliary force and an upper arm support unit (102) that supports the lower part of the wearer's upper arm to provide upward auxiliary force.

As illustrated in FIGS. 4 and 5, each of the upper arm auxiliary units (100a, 100b) may be configured to include an auxiliary force generating unit (101) including an elastic member (130) and a support link (110) arranged parallel to the elastic member (130); a drive link (140) rotatably connected about a drive shaft (ax1) provided at the upper end (111) of the support link (110) of the auxiliary force generating unit (101) and having one end connected to the elastic member (130); a folding link (160) selectively foldably connected to the other end (144) of the drive link (140), and a wearing member (170) mounted on the folding link (160) to support the lower portion of the wearer's upper arm; and an upper arm support unit (102).

The above elastic member (130) is a coil spring, and in order to control the upper arm's upward assistive force by the elastic member (130), an upper arm assistive force adjusting part (145) whose mounting position at the upper end (130u) of the elastic member (130) can be changed may be provided on one end (141) of the driving link (140).

The upper end (130u) of the elastic member (130) constituting the auxiliary force generating unit (101) is connected to a through-axis (ax2) installed to vertically penetrate the upper arm auxiliary force adjusting unit (145), and the upper arm auxiliary force adjusting unit (145) may be configured to include a plurality of inclined mounting grooves (145a) in which the through-axis (ax2) can be secured, and a connecting groove (145b) that connects the plurality of mounting grooves (145a) and in which the through-axis (ax2) can be displaced.

That is, a plurality of mounting grooves (145a) are all connected through the connecting groove (145b), and this is the place where the through shaft (ax2) whose upper end is connected to the elastic member (130) is secured.

In addition, the drive link (140) further includes an auxiliary force control lever (150) that is connected to the through shaft (ax2) and is movably mounted on the outer surface of one end (141), and the auxiliary force control lever (150) can be configured to enable sliding propulsion in the inclined direction of the mounting groove (145a). A detailed description related thereto will be described later with reference to FIG. 6.

The above mounting grooves (145a) are provided in multiple rows, and depending on which mounting groove (145a) the through shaft (ax2) is seated in, the length of the elastic member (130) is determined, and thus the assistive force for the wearer's upper arm by the upper arm support member (102) can be determined.

One end (141) of the above driving link (140) is connected to the elastic member (130) and has a structure in which it is elastically pulled downward. Accordingly, one end (141) of the driving link (140) is pulled toward the elastic member (130), and the other end (144) of the driving link (140), on which the folding link (160) is foldably mounted, is pushed upward.

Accordingly, the elastic traction force of the elastic member (130) can ultimately provide an upward assist force by pushing the wearing member (170) on which the lower part of the wearer's upper arm is worn on the folding link (160).

The above auxiliary force generating unit (101) may be configured such that an elastic member (130) in the form of a coil spring is provided inside, and a support link (110) is accommodated in a housing (120) in parallel with the elastic member (130).

A ball joint (113j) is provided at the lower end (113) of the above support link (110) and can be rotatably mounted on the lower connecting member (330).

An elastic member connecting portion (115) may be provided in a branched manner at the upper portion of the lower portion (113) of the above support link (110) to connect the lower portion (130l) of the elastic member (130).

The lower end (113) of the support link (110) constituting the above-described auxiliary force generating unit (101) is provided with a ball joint (113j) that is connected to the lower connecting member (330), and the upper end (111) of the support link (110) can be rotatably connected to the drive link (140) constituting the upper arm support unit (102) through a drive shaft (ax1).

One end (141) of the above driving link (140) is connected to the upper end (130u) of the above elastic member (130), and a folding link (160) can be fastened to the other end (144) of the above driving link (140).

The above folding link (160) is connected to the other end (144) of the driving link (140), and is mounted so as to be selectively folded or unfolded, and a wearing member (170) for supporting the lower part of the wearer's upper arm may be mounted. The reason why the folding link (160) is folded is for the convenience of the wearer. A description of this will be postponed later.

The above driving link (140) may be provided with a bend (142) bent in an L-shape, and the driving shaft (ax1) may pass through the bend (142) and be connected to the upper end (111) of the support link (110), and one end (141) and the other end (144) of the driving link (140) may be arranged with the bend (142) therebetween.

The reason why the driving link (140) is bent at the boundary between one end (141) and the other end (144) of the driving link (140) with the bending portion (142) as the boundary is to set the connection direction of the equilibrium state of the folding link (160) that is foldably mounted on the other end (144) of the driving link (140) in an upward direction higher than the horizontal direction.

Since the present invention is a device for providing upward elastic assistance force to the upper arm when a worker works upward, the other end (144) of the driving link (140) is bent at one end (141) of the driving link (140) and the bending portion (142) to have a certain degree of incline so that the driving link (140) can be set to face upward even in the unloaded state of the upper arm support portion (102).

The other end (144) of the above driving link (140) can be bent at a right angle at the bending portion (142) and then bent once more in the opposite direction at an angle adjustment portion (143) within a range of approximately 20 to 60 degrees.

The reason why the other end (144) of the above driving link (140) is not configured in a straight line in a diagonal upward direction with the upper arm in a no-load state and the angle adjustment part (143) is additionally provided is to prevent interference between the other end (144) of the above driving link (140) and the upper opening (121) of the housing (120) of the above auxiliary force generating part (101), thereby allowing a movement or posture in which the arm is lowered all the way downward even when the wearer's upper arm is mounted on the upper arm mounting member.

And, in the angle adjustment unit (143), the driving link (140) and the folding link (160) can be rotatably connected via the folding axis (ax2).

In addition, the driving link (140) is configured as a double frame structure with a slot (144s) formed on the inside, so that the support link (110) and the folding link (160) can be connected while being inserted into the slot (144s).

As shown in FIG. 6, the driving link (140) is configured in a frame shape that is bent twice in opposite directions at the commercial bending portion (142) and the angle adjusting portion (143), and may be configured in a double frame shape with a cross section in the shape of the letter 'ㄷ'.

Accordingly, the folding link (160) connected to the driving link (140) by the folding axis (ax2) in the angle adjustment unit (143) may be connected while inserted into a slot (144s) formed inside the driving link (140), but may be configured in a form that allows folding downwards into the slot (144s) when necessary.

In addition, an elastic lever clip-type fixing unit (180) having a hook (181) for preventing rotation of the folding link (160) may be provided between the other end (144) of the driving link (140), more specifically, the angle adjusting part (143) and the other end of the folding link (160).

The above fixed unit (180) blocks the downward folding of the folding link (160) when the folding link (160) is inserted and mounted inside the slot (144s) of the driving link (140) and maintains the unfolded state in which the folding link (160) is in a straight line with the other end (144) of the driving link (140), thereby allowing the auxiliary torque or auxiliary force of the driving link (140) to be transmitted to the wearer's upper arm.

In addition, the fixed unit (180) is provided with a hook (181) at an end to support the lower or lower edge of the folding link (160) while the folding link (160) is inserted and mounted inside the slot (144s) of the driving link (140), thereby preventing the folding link (160) from folding downward and maintaining the unfolded state.

And, as shown in FIG. 6, the hook (181) of the fixed unit (180) supports the lower end of the folding link (160), but when the hook (181) of the fixed unit (180) is operated to release the lower end support state of the folding link (160), the folding link (160) can be folded downward with respect to the other end (144) of the driving link (140).

If, while the folding link (160) is in a fixed state and the worker presses the fixing unit (180) after upward work to release the fixing state of the lower or lower edge of the folding link (160) by the hook (181) at the bottom of the fixing unit (180), the folding link (160) can fold downward around the folding axis (ax3), thereby escaping the upper arm support state of the upper arm support member (102) and allowing the wearable auxiliary device (1) to be removed or separated from the upper body.

And, as shown in FIG. 5 and FIG. 6, a fixing groove is formed at the bottom of the other end (144) of the driving link (140) in which the hook (181) of the fixed unit (180) is fixed, and when the fixed unit (180) is in a restrained state of the driving link (140), the hook (181) is fixed in the fixing groove (144g) to support the lower edge of the folding link (160), but the longitudinal movement of the folding link (160) is blocked, so that even if force is applied through the driving link (140), distortion of the fixed unit (180) is prevented, and the stability of the fixed state of the folding link (160) can be improved.

Figure 7 illustrates a process of increasing or decreasing the upper arm assistance force in the upper arm assistance force control unit (145) of the upper arm assistance unit (100) of the wearable auxiliary device (1) according to the present invention.

A pair of upper arm auxiliary units (100a, 100b) constituting a wearable auxiliary device (1) according to the present invention each use the elastic traction force of an elastic member (130) in the form of a coil spring as the power source for upper arm auxiliary force.

Depending on the wearer's physical condition, the weight of the upper arm, and the type of work being done, the amount of upper arm assistance required may vary.

Accordingly, the present invention provides an upper arm auxiliary force adjustment unit (145) on one side of the drive link (140) that allows the wearer of the wearable auxiliary device (1) to easily change the size of the auxiliary force provided from the auxiliary force generation unit (101) of the upper arm auxiliary unit.

As described above, the upper arm auxiliary force adjustment unit (145) is provided with a plurality of mounting grooves (145a), and as the position of the through shaft (ax2) connected to the elastic member (130) changes, the traction force for one end (141) of the driving link (140) by the elastic member (130) changes, and accordingly, the size of the auxiliary torque for the other end (144) of the driving link (140) to which the folding link (160) is connected can change.

And, this kind of upper arm assistance power adjustment or change operation can be performed by the wearer, without the help of a third party, by operating the assistance power adjustment lever (150) provided in the upper arm assistance power adjustment part (145) of the upper arm assistance unit that requires upper arm assistance power adjustment with another arm, thereby adjusting the upper arm assistance power for the corresponding arm.

The state shown in Fig. 7(a) is a state in which the penetrating shaft (ax2) is seated in the mounting groove (145a) in which the tensile length of the elastic member (130) is the shortest among the plurality of mounting grooves (145a) constituting the upper arm auxiliary force control unit (145).

The above-mentioned through-axis (ax2) and the above-mentioned elastic member (130) can be connected to the through-axis (ax2) by being inserted into the slot (144s) of the above-mentioned driving frame through a separate non-stretchy wire (w), etc.

At this time, when the wearer pushes the assistive force control lever (180) in an inclined direction as illustrated in FIG. 7(b) to increase the assistive force of the upper arm, the through-axis (ax2) connected to the elastic member (130) is pushed along the inclined surface within the mounting groove (145a) and moves to another mounting groove (145a) in the direction of pushing so that it can be seated. Since the mounting grooves (145a) are provided in multiple numbers in the same direction, when the assistive force control lever (180) is pushed all the way, as illustrated in FIG. 7(c), the through-axis (ax2) connected to the elastic member (130) is seated in the last mounting groove (145a) in the pushing direction toward the assistive force control lever (150), so that the assistive force of the upper arm by the elastic member (130) can be maximized.

Conversely, in case the upper arm assistance force is excessive, as shown in Fig. 7(d), by pulling the assistance force adjustment lever (180), the through shaft (ax2) connected to the elastic member (130) is moved from a specific mounting groove (145a) to a connecting groove (145b), and then moved in the opposite direction, and then settled in the mounting groove (145a) that provides appropriate elasticity, thereby reducing and adjusting the elasticity.

In the direction in which the above-mentioned auxiliary force control lever (180) is operated by sliding and pushing, the upper arm auxiliary force by the elastic member (130) is strengthened, and in the opposite direction, the auxiliary force control lever (180) is moved by pulling, so that even when the upper arm auxiliary force is promoted by the wearer's operating mistake or external interference, it is possible to prevent safety accidents caused by a sudden decrease in the auxiliary force.

Fig. 8 illustrates another embodiment of a wearable auxiliary device (1) according to the present invention. Any description that overlaps with the above description is omitted.

The wearable auxiliary device (1) according to the present invention is a method in which an auxiliary torque is provided by an elastic traction force by an elastic member (130) centered on a driving shaft (ax1) through a driving link (140).

And, since the drive link (140) is configured to be bent as described above, when the wearer's upper arm is directed downward rather than upward, the elastic member (130) is in a state where it is almost fully tensioned, and at this time, when the fixed state of the fixed unit (180) that maintains the unfolded state of the drive link (140) and the folding link (160) is suddenly released due to the worker's carelessness or torque due to auxiliary torque by the elastic member (130), the folding link (160) is in a downwardly folded state, and one end (141) of the drive link (140) is rapidly pulled and rotated in the opposite direction, and considerable noise and shock may be generated during this process.

Therefore, in order to prevent the release of the fixing unit (180) in the angle of the wearer's arm, specifically, in a predetermined angle range of the driving link (140), or in an area where the size of the auxiliary torque is large, the wearable auxiliary device (1) according to the present invention may be provided with a release prevention plate (190) to selectively block the exposure and release of the fixing unit (180) that fixes the unfolded state of the driving link (140) and the folding link (160).

The above anti-loosening plate (190) is a member mounted on the auxiliary force generating unit (101) and can block the exposure, pressing, and subsequent folding of the folding link (160) of the fixing unit (180) configured in the form of an elastic lever clip when the angle of the arm is lowered.

In addition, the anti-loosening plate (190) may be in the form of a semicircle or a split circle in which the fixing unit (180) is exposed so that the fixing unit (180) can be approached and manipulated when the arm is extended so that the angle is upward. When the anti-loosening plate (190) comes into contact with the fixing unit (180), friction between the fixing unit (180) and the anti-loosening plate (190) occurs, so it is preferable that the anti-loosening plate (190) and the fixing unit (180) are installed on the auxiliary force generating unit or the driving shaft so that they are spaced apart from each other, but may be configured as a plate-shaped member that is positioned close enough to prevent the fixing unit (180) from loosening when the arm is lowered.

Figure 9 illustrates a state in which the wearer wears a wearable auxiliary device (1) in which the folding link (160) constituting the upper arm support part (102) of the upper arm auxiliary unit is folded.

The wearable auxiliary device (1) according to the present invention has a feature in that the folding link (160) constituting the upper arm support part (102) is configured to be foldable with respect to the driving link (140) in order to improve the convenience of the process of putting on or taking off the wearable auxiliary device (1).

Therefore, as shown in Fig. 9, a wearer who wants to wear a wearable auxiliary device (1) can first attach the wearable auxiliary device (1) to the upper body by using a suit or band to which a climbing member (200) is connected while the folding link (160) is folded.

In this case, the wearer's upper arm is not separately restrained, so the wearer's upper arm can move freely, making it easy to put on the band or suit.

And, in a state where the wearable auxiliary device (1) is completely mounted on the upper body using a suit or band, etc. to which the climbing member (200) is connected, the wearer can complete the wearing by placing the lower part of each upper arm on the wearing member (170) constituting each upper arm auxiliary unit and then tying the wearing member (170) and the upper arm using a band, etc.

FIG. 10 illustrates a state in which the wearer's upper arm is attached to the wearing member (170) of the folded folding link (160) while wearing the wearable auxiliary device (1) illustrated in FIG. 9.

In the state shown in Fig. 10, the wearer can raise the arm upward so that the folding link (160) of the upper arm support member (102) is unfolded and connected in line with the driving link (140).

In this case, when one upper arm wearable unit is mounted first, the wearer can open the slot (144s) of the drive link (140) so that the folding link (160) can be inserted into the slot (144s) of the drive link (140) by manipulating the clip-shaped fixing unit (180) of the upper arm auxiliary unit being worn using the other hand without the help of a third party, and the lower or lower edge of the unfolded folding link (160) can be fixed to the hook (181) of the fixing unit (180), thereby completing the wearing of the wearable auxiliary device (1).

And, when adjusting the size of the assistive power provided by each upper arm auxiliary unit, the wearer can also adjust the assistive power by directly adjusting the assistive power adjustment lever (150) of the upper arm assistive power adjustment unit (145) as shown in Fig. 8 without the assistance of a third party.

In this case, the other end (144) of the driving link (140) constituting the upper arm support member (102) is in a situation where an upward auxiliary torque is applied due to the pulling action of the elastic member (130), so that the upper arm of the wearer supported by the wearing member (170) of the folding link (160) can be continuously provided with an upward auxiliary force.

Figure 11 illustrates an example of a movement in which the wearer illustrated in Figure 10 lifts the upper arm to perform an upward operation.

For example, in the case of performing work for a long period of time while raising the arm at a certain angle or higher, such as an upward assembly work, the wearer wearing the wearable auxiliary device (1) according to the present invention is provided with auxiliary torque in the direction of lifting the upper arm by the elastic member (130) of the driving link (140) constituting each upper arm auxiliary unit, and the wearing member (170) supporting the lower part of the wearer's upper arm continuously supports the wearer's upper arm upward, thereby reducing the fatigue and pain of the worker who lifts the arm for a long period of time.

In addition, even when taking off the wearable auxiliary device (1) according to the present invention, the wearer can first fold each folding link (160) by manipulating the fixing unit (180) of each upper arm auxiliary unit and then separate the wearable auxiliary device (1) from the upper body in the reverse order of wearing.

Although this specification has been described with reference to preferred embodiments of the present invention, those skilled in the art will be able to modify and change the present invention in various ways without departing from the spirit and scope of the present invention as set forth in the claims below. Therefore, if the modified implementation basically includes the elements of the claims of the present invention, it should be considered that it is included in the technical scope of the present invention.

Claims (14)

A back member worn on the wearer's upper body; It includes a pair of upper arm auxiliary units, which are connected to the upper and lower left and right sides of the upper plate member via connecting members, respectively, to provide upward elastic auxiliary force to the left and right upper arms of the wearer; Each of the upper arm auxiliary units includes an auxiliary force generating unit including an elastic member and a support link arranged in parallel with the elastic member; and, a driving link rotatably connected to an upper end of the support link of the auxiliary force generating unit about a driving shaft and having one end connected to the elastic member; a folding link selectively foldable downwardly connected to the other end of the driving link, and an upper arm support unit including a wearing member mounted on the folding link and supporting a lower portion of the wearer's upper arm. An auxiliary device for a worker. In the first paragraph, The above-mentioned back member is composed of a vertical portion arranged along the wearer's spine, and a pair of upper branch portions and a pair of lower branch portions branching from the upper and lower portions toward the wearer's two upper arm joints and two hip joints, respectively. An auxiliary device for a worker, characterized in that each of the upper arm auxiliary units is connected to the upper arm auxiliary unit via an upper connecting member or a lower connecting member at the upper branch portion and the lower branch portion of the climbing member, respectively. In the second paragraph, An auxiliary device for a worker, characterized in that the above-mentioned climbing member is connected to the driving shaft through the upper connecting member at the upper branch portion. In the third paragraph, An auxiliary device for a worker, characterized in that a ball joint is provided on the inner end of the upper connecting member and is rotatably mounted on the upper branch of the climbing member. In the second, An auxiliary device for a worker, characterized in that a ball joint is provided at the bottom of the support link and is rotatably mounted on the lower connecting member. In the first paragraph, The above driving link is an auxiliary device for a worker, characterized in that a bend is formed centered on the driving shaft and the bend is positioned between one end and the other end. In Article 6, The above elastic member is a coil spring, An auxiliary device for a worker, characterized in that an upper arm auxiliary force adjustment unit is provided at one end of the driving link in order to adjust the upper arm auxiliary force by the elastic member, the upper arm auxiliary force adjustment unit being capable of changing the connection position of the upper end of the elastic member. In Article 7, The upper end of the above elastic member is mounted on a through shaft installed to vertically penetrate the upper arm assistance force control unit, An auxiliary device for a worker, characterized in that the upper arm auxiliary force control unit includes a plurality of parallel mounting grooves in which the through-axis can be secured and a connecting groove connecting the plurality of mounting grooves and in which the through-axis can be displaced. In Article 8, An auxiliary device for a worker, characterized in that it further includes an auxiliary force control lever that is connected to the through shaft and is movably mounted on one outer surface of the driving link, and the auxiliary force control lever is capable of sliding in the inclined direction of the mounting groove. In the first paragraph, An auxiliary device for a worker, characterized in that a fixing unit in the form of an elastic lever clip having a hook for preventing rotation of the folding link is provided at the other end of the driving link. In Article 10, An auxiliary device for a worker, characterized in that the hook of the above-mentioned fixed unit supports the lower end of the above-mentioned folding link, and when the hook of the above-mentioned fixed unit is operated to release the lower support state of the folding link, the above-mentioned folding link can fold downward with respect to the other end of the above-mentioned driving link. In Article 10, An auxiliary device for a worker, characterized in that the driving link is configured as a double frame structure with a slot formed on the inside, and the folding link is deployed while being inserted into the slot. In Article 10, An auxiliary device for a worker, characterized in that the driving link has a mounting groove formed in which the hook of the fixed unit is mounted, and the slot of the driving link is blocked while the hook portion of the fixed unit is mounted in the mounting groove. In Article 10, An auxiliary device for a worker, characterized in that it further comprises a loosening prevention plate to prevent the fixed unit from being exposed to the outside and from being loosened within a predetermined angle range depending on the angle of the driving link.

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