WO2022195946A1

WO2022195946A1 - Assistive suit

Info

Publication number: WO2022195946A1
Application number: PCT/JP2021/039714
Authority: WO
Inventors: 武志山内; 泰彦村本; 真帆子佐野
Original assignee: 株式会社コガネイ
Priority date: 2021-03-16
Filing date: 2021-10-27
Publication date: 2022-09-22

Abstract

An assistive suit 10 equipped with a shoulder belt 23 to which an upper guide member 40 is attached, a right leg belt 34a to which a lower guide member 41 is attached, a left leg belt 34b to which a lower guide member 42 is attached, and an elastic assistive tube 63, the ends of which have an air supply unit 71 and an air discharge unit 72 provided thereto, wherein the assistive tube 63 is woven so as to extend between the lower guide member 41 and the upper guide member 40, and between the upper guide member 40 and the lower guide member 42, and an assistive force in the direction which raises the upper body is applied to the wearer when compressed air is supplied to the assistive tube 63.

Description

assist suit

The present invention relates to an assist suit that a worker wears on the body to reduce the physical burden on the user's lower back when in a forward leaning posture or half-assed posture.

In order to reduce the physical burden on workers when doing work that requires back muscle strength, such as lifting and carrying heavy loads, or work that requires maintaining the same posture for a long time, Assist devices and motion support devices that are attached to the body have been developed. In particular, in work that requires a forward leaning posture or a half-assed posture, the burden on the lower back is great, which may cause lower back diseases. The assist device described in Patent Document 1 has a shoulder strap worn on the left and right shoulders of a worker, that is, a wearer, and a knee strap worn on the left and right knees. One end of a power transmission member consisting of a belt is connected, and the other end is wound around a motor pulley attached to the shoulder belt. Both knee connecting members made up of knee belts are fixed to the left and right knee attachment belts, and the power transmission member and both knee connecting members are connected to pulley support portions, and are powered by a power supply unit provided in the waist attachment belt. By supplying electric power to the motor, an action force is applied to raise the upper body of the wearer who is leaning forward.

Patent Literature 2 discloses a motion support device that supports the movement of lifting a load with the arm and a motion support device that supports the motion of extending the hip joint. and two arm braces worn on both left and right arms, and the left and right arm braces are wound by wires by an electric motor provided on the torso brace.

The thigh-raising support device described in Patent Document 3 includes a waist belt attached to the waist of the user and an upper-body frame attached to the back of the user, and a support arm that supports the raising of the user's thighs. are provided on the left and right sides of the waist belt. The upper body frame is provided with a pair of left and right artificial muscle housing portions, and the end portions of the artificial muscles housed therein are connected to the support arms via wires. pushes up the user's thighs from behind.

JP 2020-146762 A JP 2018-192564 A JP 2017-55793 A

In the above-described assist device and movement support device, the belt or wire is wound up by an electric motor to give the wearer an assisting force to raise the upper body, lift the arm, or stretch the hip joint. ing. In this way, if an electric motor is used to apply an assisting force to the wearer, it is necessary to provide the electric motor and the power supply to the device, which inevitably increases the weight of the assisting device and the motion assisting device.

Also, in order to drive the support arm via the wire by the extension and contraction motion of the artificial muscle, as in the thigh lift support device described above, a large-diameter artificial muscle must be used in order to secure the movement stroke of the arm necessary for assisting. It is necessary to use more than one, which inevitably increases the size of the support device.

　Various types of work that require a forward leaning posture or a crouching posture occur intermittently, for example, at farm work or nursing care sites, so it is desirable to be able to wear assist devices and movement support devices all the time. However, increasing the size and weight of the assist device and the movement support device impairs the wearability at all times.

An object of the present invention is to provide a compact and lightweight assist suit for applying an assist force to reduce the burden on the wearer's lower back when the wearer is in a forward leaning posture or half-hugged posture.

The assist suit is an assist suit that reduces the physical burden on the wearer, and is provided with an upper guide member, a shoulder belt placed over the shoulders of the wearer, and a first lower guide member. , a right lower leg belt wrapped around the lower right leg of the wearer, a left lower leg belt attached with a second lower guide member and wrapped around the left lower leg of the wearer, and an air supply device and an air discharge device provided at the ends. an extendable assist tube that is meanderingly supported between the first lower guide member and the upper guide member and between the upper guide member and the second lower guide member; , supplying compressed air to the assist tube to apply an assisting force in the direction of reducing the burden on the waist of the wearer when the wearer is in a forward leaning posture or half-crouching posture.

The assist tube is provided so as to meander between an upper guide member provided on the shoulder belt and a lower guide member provided on each of the left and right lower leg belts. The assist tube has a dimension longer than the distance between As a result, it is possible to provide an assisting force to the wearer without using an electric motor or a battery, and to obtain a compact and lightweight assist suit.

1 is a front view showing the outer surface of an assist suit that is an embodiment; FIG. Fig. 10 is a perspective view showing the back side of the wearer wearing the assist suit on the body; 3 is a perspective view showing the front side of the wearer of FIG. 2; FIG. FIG. 4 is a side view showing a wearer in an upright posture wearing the assist suit in a state where compressed air is not injected into the assist tube. FIG. 11 is a side view showing a wearer in an upright posture wearing the assist suit with compressed air being injected into the assist tube. FIG. 4 is a side view showing a state in which a person wearing an assist suit is lifting a load while compressed air is being injected into the assist tube. (A) is an enlarged cross-sectional view taken along line 7A-7A in FIG. 1, and (B) is an enlarged cross-sectional view taken along line 7B-7B in FIG. (A) is an enlarged cross-sectional view taken along line 8A-8A in FIG. 1, and (B) is an enlarged cross-sectional view taken along line 8B-8B in FIG. It is a perspective view which shows a part of assist tube. 1 is a side view showing an example of a portable air pump; FIG. (A1) is a schematic diagram showing a state in which the assist tube of the assist suit described above is stretched, (A2) is a schematic diagram showing a state in which the assist tube is contracted, and (B1) is a schematic diagram showing a modified assist suit. FIG. 4B is a schematic diagram showing a state in which the assist tube is stretched; FIG. 4B is a schematic diagram showing a state in which the assist tube is contracted; and FIG. FIG. 12C is a schematic diagram showing a state in which the assist tube is contracted; FIG.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. As shown in FIGS. 1 to 3, the assist suit 10 has a waist belt 11 wrapped around the wearer's waist.

(waist belt)
The waist belt 11 includes a body portion 12 that is wrapped around the back side of the wearer, and

connection belts

13 a and 13 b attached to both ends of the body portion 12 . Each connecting

belt

13a, 13b has fixed

end portions

14a, 14b fixed to the lower portion of the main body portion 12 and delivery ends passing through

length adjusters

15a, 15b attached to the upper portion of the main body portion 12. and

portions

16a and 16b. As shown in FIGS. 1 and 8A, the

length adjusters

15a and 15b have a quadrilateral frame 17 and a folding guide piece 18 provided at the center of the frame 17. One end of the body 17 is attached to the main body 12 by a fixture 19, and the extended end 16a of the connecting belt 13a is bent by a folding guide piece 18 and passed inside the other end of the frame 17 to reach the adjuster 15a. is drawn out from The length adjuster 15b also has the same configuration.

The connection belt 13a is provided with a one-touch type buckle 21 on the insertion side, and the connection belt 13b is provided with a one-touch type buckle 22 on the insertion side. By engaging and connecting both

buckles

21 and 22, the waist belt 11 is worn by the wearer. By adjusting the amount of length to be extended from the

length adjusters

15a and 15b of the

extension ends

16a and 16b of the connecting

belts

13a and 13b, the loop shape of the waist belt 11 can be adjusted according to the waist size of the wearer. length is set.

(shoulder belt)
The assist suit 10 has shoulder belts 23 extending from the wearer's back over both shoulders and around the chest. The shoulder belt 23 has a longitudinal central portion 24 arranged on the back side of the wearer, and

shoulder mounting portions

25a and 25b extending from the respective central portions 24 and arranged around the shoulders of the wearer, A right end portion 26a and a left end portion 26b are provided at the ends of the

shoulder mounting portions

25a and 25b, respectively, and extend to the chest area of the wearer. At the center of each of the

shoulder mounting portions

25a and 25b, there are provided a folded portion 26c and a folded portion 26d that are placed on the shoulders of the wearer. A first cross belt 27a is attached to the main body portion 12 of the waist belt 11 to the left side thereof, and a second cross belt 27b is attached to the right side portion of the main body portion 12 thereof. One-

touch type buckles

28a and 28b on the insertion side are attached to the tips of the

respective cross belts

27a and 27b, and one-

touch type buckles

29a and 29b on the inserted side to which the

buckles

28a and 28b are detachably connected are shoulder belts. 23 are attached to the

tips

26a and 26b.

When the

buckles

28a, 28b and the

buckles

29a, 29b are connected, the

respective cross belts

27a, 27b are connected in a direction crossing the wearer. In addition, by adjusting the length of the tip portions of the

cross belts

27a and 27b, which are extended from the

respective buckles

28a and 28b, the

tip portions

25a and 25a of the waist belt 11 and the shoulder belt 23 can be adjusted according to the wearer's body. Lengths up to 25b can be adjusted. By adjusting the length from the waist belt 11 to the

tip portions

25a and 25b of the shoulder belt 23, the distance from the folded

portions

26c and 26d to the central portion 24 can be adjusted.

A front connection belt 31a is attached to the shoulder attachment portion 25a of the shoulder belt 23 so as to be positioned around the wearer's chest, and a front connection belt 31b is attached to the shoulder attachment portion 25b. An insertion side one-touch type buckle 32 is attached to the tip of one connecting belt 31a, and an insertion side one-touch type buckle 33 is attached to the tip of the other connecting belt 31b. The leading end of the connecting belt 31a is extended from the buckle 32 on the insertion side, and the length of the connecting

belts

31a and 31b can be adjusted according to the wearer's body by adjusting the amount of extension. Further, the attachment positions of the connecting

belts

31a and 31b with respect to the

shoulder attachment portions

25a and 25b may be changed according to the wearer's body.

(lower leg belt)
The assist suit 10 has a right lower leg belt 34a wrapped around the wearer's right thigh and a left lower leg belt 34b wrapped around the wearer's left thigh. The lower right leg belt 34a includes a body portion 35 and two upper and lower connecting

portions

36 and 37 protruding from one end in the longitudinal direction of the body portion 35. A surface fastener 38 is provided on the outer surface of the body portion 35 for connection. A hook-and-loop fastener 39 detachably joined to the hook-and-loop fastener 38 is provided on the inner surfaces of the

portions

36 and 37 . Similarly, the left lower leg belt 34b has a body portion 35 and two upper and lower connecting

portions

36 and 37 protruding from one longitudinal end of the body portion 35, and a hook-and-loop fastener 38 is provided on the outer surface of the body portion 35. A hook-and-loop fastener 39 detachably joined to the hook-and-loop fastener 38 is provided on the inner surfaces of the connecting

portions

36 and 37 . However, although the connecting

portions

36 and 37 of the right lower leg belt 34a are shown in a twisted state, the hook-and-loop fasteners 39 on the inner surface of the connecting

portions

36 and 37 of the left lower leg belt 34b are not shown. ing. As an example, the

lower leg belts

34a and 34b are attached to the left and right thighs of the wearer, but the

lower leg belts

34a and 34b may be attached to portions other than the thighs, such as the left and right knees.

(Guide member)
An upper guide member 40 is attached to the central portion 24 of the shoulder belt 23, a first lower guide member 41 is attached to the body portion 35 of the right lower leg belt 34a, and a second lower guide member 42 is attached to the left lower leg belt 34b. is attached to the main body portion 35 of the

As shown in FIG. 7(A), the upper guide member 40 has a guide pulley 44 which is a rotating body having a groove 43 formed on its outer peripheral surface. The guide pulley 44 is supported by support plates 45 on both front and rear sides. It is rotatably supported by shaft 46 . Both support plates 45 are attached by belts 48 to hangers 47 . A hook 49 that can be detachably attached to a hanging device 47 is attached to the central portion 24 of the shoulder belt 23, and the hook 49 has an engaging shaft 52 with a head portion 51 provided thereon.

The hanging tool 47 is provided with a large-diameter hole 53 through which the head 51 passes and a small-diameter hole 54 with which the engaging shaft 52 engages. Thus, the engagement between the engaging shaft 52 and the small-diameter hole 54 is released, and the hanging member 47 can be removed from the hook 49 . Therefore, the shoulder belt 23 can be separated from the waist belt 11 for storage or transportation.

The first lower guide member 41 and the second lower guide member 42 have the same structure and, like the upper guide member 40, have a guide pulley 44 with a groove 43 formed on the outer peripheral surface, The guide pulley 44 is rotatably supported by support shafts 46 on both front and rear support plates 45 . As shown in FIG. 7B, the second lower guide member 42 has both support plates 45 connected to a quadrilateral frame 56 by a belt 55, and the frame 56 is connected to the left lower leg by a connecting belt 57. It is attached to the belt 34b. One end of the connecting belt 57 is attached to the inner surface of the left leg belt 34b, and the other end of the connecting belt 57 is provided with a hook-and-loop fastener 58 detachably joined to the hook-and-loop fastener 38 of the left leg belt 34b. . The space between the lower guide member 42 and the left leg belt 34b can be adjusted by changing the position where the hook-and-loop fastener 58 is joined to the left leg belt 34b. The first lower guide member 41 also has the same structure as the second lower guide member 42 shown in FIG. 7(B).

In this manner, the distance between the lower guide member 41 and the right lower leg belt 34a is adjusted by changing the attachment position of the hook-and-loop fastener 58 and adjusting the length of the connecting belt 57 as the first connecting belt. You are free. Similarly, the distance between the lower guide member 42 and the left leg belt 34b can also be adjusted by changing the attachment position of the hook-and-loop fastener 58 and adjusting the length of the connecting belt 57 as the second connecting belt. is.

A reinforcing plate 60 made of a material having higher rigidity than the body portion 12 of the waist belt 11 is attached to the outer surface of the body portion 12 of the waist belt 11, and the first intermediate guide member 61 and the second intermediate guide member 62 are attached to the reinforcing plate. 60. As the reinforcing plate 60, metal, resin, or fabric having higher rigidity than that of the body portion 12 can be used. Each of the

intermediate guide members

61 and 62 has a concave groove 43 formed in the same manner as the upper guide member 40 shown in FIG. 7(A) and the

lower guide members

41 and 42 shown in FIG. 7(B). It has a guide pulley 44 and a support plate 45 that rotatably supports the guide pulley 44 . A cross belt 27 b is fixed to the inner support plate 45 of the first intermediate guide member 61 , and a cross belt 27 a is fixed to the inner support plate 45 of the second intermediate guide member 62 .

(assist tube)
One end portion 64 of the extendable assist tube 63 is fixed to the body portion 12 of the waist belt 11 by a fixing member 64a, and the other end portion 65 is fixed to the waist belt 11 by a fixing member 65a. The assist tube 63 extends from one end 64 to the first intermediate guide member 61 and is telescopically supported, from which it extends to the first lower guide member 41 and is telescopically supported by the lower guide member 41 . It meanders and extends to the upper guide member 40 . Further, the assist tube 63 is telescopically supported by the upper guide member 40, extends from the upper guide member 40 to the second lower guide member 42, is telescopically supported by the lower guide member 42, and extends from the lower guide member 40 to the lower guide member 42. It extends meanderingly from the member 42 to the second intermediate guide member 62 .

The assist tube 63, as shown in FIG. 9, comprises an elastic tube 66 and a braid tube 67 provided outside thereof, and is elastically deformable in radial and longitudinal directions. The elastic tube 66 is made of elastically deformable material such as synthetic rubber or synthetic resin. Fig. 3 is a tube of network structure formed; The assist tube 63 is a fluid tube, that is, an artificial muscle, which expands radially outward and contracts to shorten its overall length when compressed air is supplied to the internal air chamber 68 .

A tube guide plate 69 is attached to the reinforcing plate 60 of the waist belt 11, and the portion of the assist tube 63 between the upper guide member 40 and the first lower guide member 41 2 is guided in a space between the tube guide plate 69 and the reinforcing plate 60 so as to extend and contract.

The upper guide member 40, the

lower guide members

41 and 42, and the

intermediate guide members

61 and 62 described above are provided with a guide pulley 44, which is a rotating body provided rotatably on the support shaft 46, and the assist tube 63 expands and contracts. Since the guide pulley 44 rotates when deformed, the expansion/contraction deformation of the assist tube 63 can be smoothly guided.

(portable air pump)
One end 64 of the assist tube 63 is provided with an air supply device 71 and an air discharge device 72 , and the other end 65 is closed by a closure member 73 . As shown in FIG. 10, a manually operated portable air pump 74 as an air pressure source is detachably attached to an air supply tool 71, and an air supply tube 75 connected to an air discharge port of the portable air pump 74 has a , a connecting portion 76 detachably attached to the air supply device 71 is provided. The portable air pump 74 is connected to the assist tube 63 by inserting the connecting end portion 77 provided on the air supply device 71 into the connecting portion 76 . When the outer cylindrical portion 74 a of the portable air pump 74 is axially reciprocated in this state, compressed air is injected from the portable air pump 74 into the air chamber 68 inside the assist tube 63 . Instead of the manually operated portable air pump 74, an electrically driven portable compressor or pressure vessel may be used as the air pressure source.

When the push button 78 provided on the connecting portion 76 is operated, the connection between the assist tube 63 and the air pump 74 is released. An exhaust operation button 79 is incorporated in the exhaust portion 72a of the air exhaust device 72, and when the exhaust operation button 79 is pushed, the compressed air in the assist tube 63 is exhausted to the outside from the exhaust portion 72a.

(Usage procedure)
Next, the method of wearing the assist suit 10 on the wearer's body will be described. The wearer passes both arms through the shoulder belts 23 and connects the buckle 32 of the connecting belt 31a and the buckle 33 of the connecting belt 31b at the chest. . Next, the buckle 21 and the buckle 22 of the waist belt 11 are connected. The length of the waist belt 11 is adjusted according to the circumference of the wearer's waist by changing the extension length of the extension ends 16a and 16b.

Furthermore, the

lower leg belts

34a and 34b are wrapped around the left and right thighs. This winding operation is performed by fastening the hook-and-loop fastener 39 provided on the inner surface side of the connecting

portions

36 and 37 to the hook-and-loop fastener 38 of the main body portion 35 . Depending on the fastening position of the hook-and-loop fastener 39 to the hook-and-loop fastener 38, the

lower leg belts

34a, 34b can be tightly fastened to the thighs according to the thigh size of the wearer.

2 to 4 show the state in which the wearer wears the assist suit 10 on the body in this way. Under this condition, compressed air can be injected into the air chamber 68 of the assist tube 63 by axially reciprocating the cylindrical portion 74a of the portable air pump 74 about ten times. As a result, the assist tube 63 is expanded by the compressed air and is elastically deformed so as to become thicker in the radial direction, and an elastic force is applied to the assist tube 63 in the direction of contraction in the axial direction. In a state in which compressed air is injected into the assist tube 63 and an elastic force is applied to the assist tube 63 as an assist force, the length of the extended end portions of the

cross belts

27a and 27b is adjusted to allow the shoulder belt 23 to be adjusted. length is adjusted.

FIG. 5 shows a state in which air is injected into the assist tube 63, and the assist tube 63 has a larger outer diameter than the state shown in FIG. As a result, an elastic force in the direction of stretching the back muscles, that is, in the direction of raising the wearer's upper body, is applied as an assist force between the wearer's back and the left and right thighs. When the assist force is applied in the direction to raise the wearer's upper body, the physical burden on the lower back of the wearer is reduced when the wearer takes a forward leaning posture or a half-crouching posture.

For example, as shown in FIG. 6, when the upper body of the wearer P leans forward to lift the load W with both hands, the assist tube 63 applies an elastic force in the direction of stretching the back muscles to the wearer P as an assist force. The burden on the waist of the wearer P is reduced. Since the elastic force is applied by the assist tube 63 when carrying the load W, the assist force is applied in the direction of stretching the back muscles, and the burden on the waist is reduced. The elastic force of the assist tube 63 also functions as an assist force when raising the upper body to lift a load.

When removing the portable air pump 74 from the assist tube 63, the portable air pump 74 can be easily removed by pushing the push button 78 for removal. Even if the portable air pump 74 is removed, the air in the assist tube 63 will not be discharged to the outside because the check valve is incorporated in the air supply device 71 . Even when the portable air pump 74 is connected to the assist tube 63, the wearer can lift and carry the load. On the other hand, the air in the assist tube 63 can be discharged by pushing the exhaust operation button 79 of the air discharging tool 72 shown in FIG.

In the assist suit 10 described above, the assist tube 63 can be inflated with a simple operation by manually operating the manually operated portable air pump 74 without using an electric motor. Moreover, since it is not necessary to install an electric motor or a battery as a power source for driving the motor, the assist suit 10 is lightened and the wearer P uses the assist suit 10 as if wearing clothes. be able to.

The assist tube 63 continues from one end 64 to the other end 65, and extends between the lower guide member 42 of the left lower leg belt 34b and the upper guide member 40 of the shoulder belt 23 and the lower side of the right lower leg belt 34a. It is provided to meander between the guide member 41 and the upper guide member 40 of the shoulder belt 23 . Therefore, the single assist tube 63 is longer than the vertical length of the back of the wearer P and meanders in the vertical direction so as to extend over a plurality of locations along the back of the wearer P. . As a result, the lightweight assist tube 63 can apply an assisting force to the wearer so as to increase the strength of the back muscles of the wearer.

FIG. 11(A1) is a schematic diagram showing a state in which the assist tube 63 is extended, and FIG. 11(A2) is a schematic diagram showing a state in which the assist tube 63 is contracted. By making the assist tube 63 meander, a large telescopic stroke can be obtained with the thin assist tube 63 without using a thick assist tube. In FIG. 11, L indicates the distance between the upper guide member 40 and the

lower guide members

41 and 42 when compressed air is not supplied to the assist tube 63, and L indicates the injection of compressed air into the assist tube 63. shows the distance between the upper guide member 40 and the

lower guide members

41 and 42 in a state in which the assist tube 63 is inflated and contracted.

(Modification)
One end 64 of the assist tube 63 is provided with an air supply tool 71 and an air discharge tool 72. The air supply tool 71 is provided at one end 64 of the assist tube 63 and the air discharge tool 72 is provided at the other end. may be provided. The upper guide member 40, the

lower guide members

41, 42, and the

intermediate guide members

61, 62 are provided with a guide pulley 44, which is a rotating body rotatably provided on a support shaft 46, and have a circular support surface. However, as long as it is a member that supports the assist tube 63 in an extendable manner, the assist tube 63 may be supported by a fixed member without using a rotating member.

FIG. 11(B1) is a schematic diagram showing a state in which the assist tube 63 of the assist suit 10 as a modification is extended, and FIG. 11(B2) is a schematic diagram showing a state in which the assist tube 63 is contracted.

The assist suit 10 is provided with two upper guide members 40 on the shoulder belts 23 and one intermediate guide member 61 on the waist belt 11 . Even if the assist tube 63 meanders in this way, a large telescopic stroke can be obtained by the thin assist tube 63 .

FIG. 11(C1) is a schematic diagram showing a state in which the assist tube 63 of the assist suit 10 of another modified example is extended, and FIG. 11(C2) is a schematic diagram showing a state in which the assist tube is contracted.

In this assist suit 10, the shoulder belts 23 are provided with one upper guide member 40, and the waist belt 11 is not provided with an intermediate guide member. In this manner, a large telescopic stroke can be obtained by the thin assist tube 63 without supporting the assist tube 63 on the intermediate guide member.

The present invention is not limited to the above-described embodiments, and can be modified in various ways without departing from the spirit of the present invention. For example, the waist belt 11 is connected by the buckle 21 on the inserting side and the buckle 22 on the inserted side, but these may be connected by hook-and-loop fasteners. Conversely, both

lower leg belts

34a and 34b may be connected by buckles instead of hook-and-loop fasteners. In this way, members connected by a buckle may be connected by a hook-and-loop fastener, and members connected by a hook-and-loop fastener may be connected by a buckle.

This assist suit can be used as a movement support device that supports the wearer's movements and reduces the burden on the wearer's lower back.

Claims

An assist suit that reduces the physical burden on the wearer,
a shoulder belt fitted with an upper guide member and positioned over the wearer's shoulder;
a lower right leg belt to which a first lower guide member is attached and wrapped around the wearer's lower right leg;
a left lower leg belt to which a second lower guide member is attached and wrapped around the wearer's left lower leg;
An air supply device and an air discharge device are provided at the ends, and meander between the first lower guide member and the upper guide member and between the upper guide member and the second lower guide member. a telescopic assist tube supported by the
An assist suit that supplies compressed air to the assist tube to apply an assist force in the direction of reducing the burden on the waist of the wearer with respect to the wearer's forward leaning posture or half-crouching posture.
In the assist suit according to claim 1,
A first connecting belt connecting the first lower guide member to the right lower leg belt is adjustable in length, and a second connecting belt connecting the second lower guide member to the left lower leg belt. Assist suit with adjustable length.
In the assist suit according to claim 1 or 2,
An assist suit having a waist belt that is wrapped around the waist of a wearer, wherein the waist belt is provided with fixing members for fixing both ends of the assist tube to the waist belt.
In the assist suit according to claim 3,
Between a first intermediate guide member that telescopically supports the assist tube in a portion between the assist tube and the first lower guide member, and the assist tube and the second lower guide member 2. An assist suit, wherein the waist belt is provided with a second intermediate guide member for telescopically supporting the assist tube in the portion of .
In the assist suit according to claim 4,
a length-adjustable first cross belt attached to the left side of the waist belt and detachably connected to the right tip of the shoulder belt;
and a length-adjustable second cross belt attached to the right side portion of the waist belt and detachably connected to the left tip portion of the shoulder belt.
In the assist suit according to any one of claims 1 to 5,
The assist suit, wherein the upper guide member and the lower guide member are guide pulleys rotatably provided on a support shaft.
In the assist suit according to any one of claims 1 to 6,
An assist suit having an air pressure source removably attached to the air supply device.
In the assist suit according to claim 7,
The assist suit, wherein the air pressure source is a manually operated portable air pump, an electrically driven portable compressor or a portable pressure vessel.
In the assist suit according to any one of claims 1 to 8,
The assist suit comprises an elastic tube and a braided tube provided outside the elastic tube, wherein the elastic tube is made of synthetic resin or synthetic rubber, and the braided tube is a network structure formed by braiding threads into a tubular shape. .