JP2004024826A - Work auxiliary device and working method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the efficiency by reducing the load applied to the lower body of a worker who takes a standing posture or semi-crouching posture or performs a vertical movement for a long time to suppress the occurrence of a problem such as deterioration in efficiency or physical disorder by fatigue, and to enable an aged person, a person poor in physical strength, or a person having a handicap in the lower body to comfortably perform a work for a long time by performing a posture change for changing the height of the waist. <P>SOLUTION: This work auxiliary device is constituted by combining a push-up means capable of regularly applying a substantially constant push-up force, regardless of the height position of the waist, to a body holding means for holding the trunk part of the worker from a floor surface side, so that the state where the worker's feet make contact with the floor surface can be kept. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an apparatus for reducing a load on a leg of a worker who performs a manufacturing operation while performing a posture change in which a waist height changes.
[0002]
[Prior art]
Conventionally, chairs have been used only when working in a fixed posture.
In recent years, assembling work has changed from a flow operation such as a belt conveyor to a cell method in which one worker assembles one product from the beginning to completion. For this reason, the work content is complicated, and the work of moving and assembling parts is also complicated, and the worker repeats the work while changing the working posture from a standing posture, a middle waist posture, a crouched posture, and further works on parts. In order to take the parts off the shelves, it was necessary to repeatedly work while moving within a certain area.
[0003]
[Problems to be solved by the invention]
It was extremely difficult to use a chair to continue the work while changing the posture to a standing posture, a waist posture, etc. Therefore, the work was performed without using any chair or the like. However, when the work is performed for a long time, the burden on the lower body of the worker is large, and the efficiency is reduced due to fatigue and a problem of disability to the body occurs. In addition, it is impossible for elderly people, people with physical strength, and people with lower body disabilities to continue their work while changing their posture or to work for a long time in a standing posture.
The reason for not using a chair is that the use of a chair does not allow the height of the waist to be easily changed, so there is a limit to the posture. Was very unreasonable. Further, there are chairs in which wheels can be attached to the chair and the floor surface can be freely moved, but as described above, the waist height cannot be easily changed, so that it is unsuitable for use in a manufacturing operation.
In addition, in many cases, repetitive work is performed while moving within a certain range of front and rear, left and right along with the change in the vertical direction, and work using a chair is impossible.
The present invention reduces the load on the lower body of the worker, and allows the posture to be easily changed to a standing posture, a middle waist posture, etc. with a small amount of leg force.
Easy to move back and forth, left and right with little leg strength.
Minimize the burden on the legs when standing postures such as standing postures and waist postures.
Furthermore, the body holding means is fixed at the height and position desired by the operator by operating the switch, and the state of sitting on the waist at the height and position desired by the operator is enabled, and the position of the waist of the operator is fixed to facilitate the work. Accordingly, an object of the present invention is to provide a work assist device and a work method thereof, which further reduce the burden on the leg.
[0004]
[Means for Solving the Problems]
First, in order to solve the above-described problems, a body holding unit that holds a body part of an operator performing a manufacturing operation while performing a posture change in which the waist height changes, The body holding means follows and changes the operation of bending and stretching to change the height of the waist, and the lifting force within a range where the feet of the worker can maintain the ground contact state on the floor or the base surface from the floor side. The work-assisting device is composed of push-up means that always touches the work.
Secondly, the first work assisting device is provided with up-down moving means for restricting the movement of the body holding means in the up-down direction and making it movable.
Thirdly, the body holding means and the push-up means of the first or second work assisting device are mounted on a frame, and the frame is provided with wheels capable of freely moving on the floor.
Fourthly, the first and second work assisting devices are provided with forward and backward moving means for enabling the body holding means to move in the front and rear direction of the worker.
Fifth, the first work assisting device is provided with up-down and front-rear moving means for moving the body holding means in the up-down and front-rear directions of the worker.
Sixth, the first, second, fourth, and fifth work assisting devices are provided with left-right moving means for moving the body holding means in the left-right direction of the worker.
Seventh, the first, second, fourth, fifth, and sixth work assisting devices each have a center at a position away from the body of the worker held by the body holding means, and move the body holding means horizontally. A turning means is provided for turning freely in any direction.
Eighth, the push-up means of the first, second, third, fourth, fifth, sixth, and seventh work assist devices is provided with a fluid-driven device operated by a fluid and a pressure applied to the fluid-driven device. And a fluid supply means for supplying the fluid.
Further, the first, second, third, fourth, fifth, sixth, and seventh work assisting devices are provided with detecting means for detecting that the weight of the worker has been applied to the body holding means.
In addition, the operator who performs the manufacturing work while changing the posture in which the waist height changes is held by the body holding means, and the working worker bends and stretches the legs to change the waist height. Work assisting device having push-up means for applying a push-up force from the floor side to the body holding means within a range in which the body holding means can be changed by following the body holding means and the foot of the worker can be kept in contact with the floor or the base surface. And a manufacturing operation method for performing the operation.
[0005]
[Action]
In the work assisting device configured as described above, a lifting force within a range in which the feet of the worker can keep the ground on the floor works on the body holding means and the worker irrespective of the height position of the waist. Therefore, the load on the legs of the worker is very small. In the case of the work assisting device having the function of adjusting the pushing force of the pushing means, the load applied to the leg of the worker can be freely adjusted by adjusting the pushing force.
Therefore, when the body holding means holds the body of the worker and tries to keep the worker standing on the floor, the worker can apply a slight force to the legs.
Also, when the worker relaxes his knees and bends his knees in a standing position, the pushing force is set to be weaker than the weight applied to the pushing-up means and the total weight of the body-holding means. The position goes down. The operator smoothly follows the change of the vertical position of the waist due to the work posture performed by the worker unconsciously and exerts a lifting force. Further, even when the knee is bent, the load applied to the legs of the worker is small and hardly changes from the standing posture. In addition, since the foot is on the floor, in the case of a work assisting device having a function of moving back and forth, right and left, the operation of the front, back, left, and right can be easily performed by the movement of the foot of the worker so as to normally move on the floor.
Also, if a lower limit stop position is provided in the push-up means and the height of the stop position of the body holding means is set to be equal to the height of the chair, it is the same as if the worker completely removed the force of the legs and sat on the chair. You can take a sitting posture. Since the push-up force is always applied even in the sitting posture, even when the standing posture or the middle waist posture is changed from the sitting posture, it is easily possible by slightly applying force to the feet and performing the rising motion. In the case of a work assisting device having a function of stopping the push-up force, the body holding means can be fixed at a height or position desired by an operator by operating a switch.
Further, when the forward and backward moving means and the left and right moving means are combined and configured, smooth movement can be performed in all directions in the horizontal direction, and the worker moves with his / her own foot and works while changing the position to the front, rear, left and right. Also, the push-up force from the push-up means acts on the body holding means and the worker, so that the worker can perform forward / backward, left / right, and up / down movements within a limited movement range with slight leg strength.
[0006]
【Example】
Embodiments will be described with reference to the drawings.
First embodiment
FIG. 1 shows a push-up means constituted by a cylinder 21 of a fluid drive device which is operated by a fluid and generates a push-up force, a body holding seat 1a holding a body of an operator 10 attached to a rod of the cylinder 21, and a seat. 1 shows an example of a work assisting device constituted by a body holding means including a belt 11. The apparatus is further provided with a fluid supply means.
In the case of FIG. 1, an example is shown in which gas is used as the fluid supplied by the fluid supply means. A pressure reducing valve of a pressure control device 23a is connected to the piping port 21a by piping, and a compressor or a tank of the fluid supply means is connected to the pressure reducing valve. And supplies the gas to the cylinder 21b under pressure control.
In this work assisting device, the worker 10 sits down on the body holding seat 1a of the body holding means between his crotch and fastens and fixes the seat belt 11. The output of the cylinder 21 acts as a push-up force by sending high-pressure gas from the fluid supply means to the body holding means into the cylinder 21b of the cylinder 21 as a push-up means under pressure control by a pressure reducing valve. By attaching the flow control valve 23b to the pipe port 21c, the displacement of the air in the cylinder 21d can be controlled, and the rising speed of the lifting rod 212 and the body holding seat 1a can be controlled. However, it is not always necessary and does not need to be attached when a liquid is used as the fluid to be fed into the cylinder 21b.
The pressure of the fluid is adjusted by the pressure reducing valve 22, and the lifting force can be freely adjusted so that the load of the worker 10 can be easily adjusted while the foot is on the floor or the surface of the base 6. Thus, the load applied to the leg of the worker 10 can be reduced or increased.
When the position of the body holding means is the lowest position when the piston 211 of the cylinder 21 is at the lower limit, and the position is configured to be equivalent to the posture of the worker 10 sitting on a chair, the worker 10 When the power of the legs is released, the piston 211 and the body holding means are lowered to the lower limit, and the worker 10 is in a posture equivalent to a state of sitting on a chair, and can work in a sitting posture. In addition, when the user stands up from that state, a pushing-up force is always applied. Therefore, if a slight amount of force is applied to the legs to perform the rising operation, the standing posture can be easily achieved.
In addition, even when the user is in the middle waist posture or intends to maintain the middle waist posture, it is only necessary to similarly apply a slight force to the legs.
The high-pressure gas or the pressurized liquid in the tank compressed and stored by the fluid supply means is sent into the cylinder 21b of the push-up means in FIG. When the fluid is a liquid, the pressure reducing valve in FIG. 1 is omitted.
In the case of this device, the worker 10 can only move up and down.
The work assisting device is installed directly on the floor or mounted on a plate-like base. In the case of this work assisting device, since the work is performed at a fixed position, it is not always necessary to attach the seat belt 11.
Second embodiment
In FIG. 2, the lifting means is constituted by a compression spring 24a, and the compression spring 24a is constituted so that the inside is guided by an in-spring guide 242 and the outside is guided by an outside-spring guide 241. An example of a work assisting device configured to attach a body holding seat 1a of the means is shown.
In this device, the position where the tip of the in-spring guide 242 and the bottom of the hole of the out-of-spring guide 241 abut is the lowering limit of the body holding seat 1a. The upper limit of the body holding seat 1a is a state where the compression spring 24a is fully extended. The position of the body holding seat 1a when the worker 10 using this device is in the standing posture is configured to be lower than the upper limit of the body holding seat 1a when the worker 10 is not using the device. The repulsive force of the compression spring 24a always acts as a pushing force on the worker 10 held on the body holding seat 1a.
In the case of this device, the worker 10 can only move up and down.
Third embodiment
FIG. 3 shows a push-up means constituted by a plate-like spring 24b which is bent in a belt-like shape fixed to the floor or the base 6 on one side, and the body-holding seat 1a of the body-holding means is attached to the tip of the leaf spring 24b. 1 shows an example of a work assist device to be performed.
In this device, the position of the body holding seat 1a is reduced by the weight of the worker 10, and the position where the lower limit stop rod 244 hits the floor or the base 6 is the lowering limit of the body holding seat 1a. The upper limit of the body holding seat 1a is a state in which the tip of the leaf spring 24b has risen and the wire rope 243 has completely extended. The position of the body holding seat 1a when the worker 10 using this device is in the standing posture is configured to be lower than the upper limit of the body holding seat 1a when the worker 10 is not using the device. The repulsive force of the leaf spring 24b always acts as a lifting force on the worker 10 held on the body holding seat 1a.
In the case of this device, the worker 10 can only move up and down.
Fourth embodiment
FIG. 4 shows an example in which the work assisting device of FIG. 1 is reinforced by providing a vertical moving means which comprises a vertical slide shaft 311 and a slide bearing 312 and can only move linearly in the vertical direction.
The apparatus shown in FIG. 4 is further provided with a fluid supply means for feeding a fluid into the cylinder 21b, and a pipe for feeding the fluid from the fluid supply means is connected to a pipe port 21a.
The method of use and operation are the same as those of the apparatus shown in FIG.
In the case of this device, the worker 10 can only move up and down.
Fifth embodiment
FIG. 5 shows an example in which the push-up means of the work assisting device of FIG. 4 is reversed, and a cylinder 21 of a driving device is attached to the body holding seat 1a.
The apparatus shown in FIG. 5 is further provided with a fluid supply means for feeding a fluid into the cylinder 21b, and a pipe for feeding the fluid from the fluid supply means is connected to a pipe port 21a.
The method of use and operation are the same as those of the apparatus shown in FIG.
In the case of this device, the worker 10 can only move up and down.
Sixth embodiment
FIG. 6 shows an up-down moving means composed of an up-down slide shaft 311 and a slide bearing 312 and capable of only linear movement in the up-down direction, a compression spring 24a for pushing up the up-down slide shaft 311 and a tip mounted on the up-down slide shaft 311. 1 shows an example of a work assisting device constituted by a body holding seat 1a of body holding means.
The upper limit of the body holding seat 1a is as shown in FIG. 6, and the position of the body holding seat 1a when the worker 10 is in the standing posture held by the body holding seat 1a is lower than the upper limit of the body holding seat 1a. Be composed. The lower limit of the body holding seat 1a is a position where the upper and lower slide shafts 311 hit the lower limit stop 24e.
The repulsive force of the compression spring 24a always acts as a pushing force on the worker 10 held on the body holding seat 1a.
In the case of this device, the worker 10 can only move up and down.
Seventh embodiment
FIG. 7 shows a lifting means utilizing the weight of the weight 25, a vertical moving means comprising a vertical slide shaft 311 and a slide bearing 312 and capable of only linearly moving in the vertical direction, and a body holding attached to the tip of the vertical slide shaft 311. 1 shows an example of a work assisting device constituted by a body holding seat 1a as a means.
The weight of the weight 25 is changed to the pushing force of the body holding seat 1a by the pulley 251.
In the case of this device, the lifting force is determined by subtracting the weights of the body holding means and the vertical moving means from the weight of the weight 25 and acting as the lifting force. Therefore, the lifting force is related to the vertical position of the body holding seat 1a. Constant force works.
In the case of this device, the worker 10 can only move up and down.
Eighth embodiment
FIG. 8 includes a weight 25, a lifting means including a rack 262 and a pinion 261 for converting the weight of the weight 25 into a lifting force, a vertical slide shaft 311 on which the rack 262 is assembled, and a slide bearing 312. An example of a work assisting device constituted by vertical moving means capable of linearly moving in the vertical direction and a body holding seat 1a of a body holding means attached to the tip of a vertical slide shaft 311 is shown.
The weight of the weight 25 acting in the floor direction is converted into an upward pushing force by the mechanism of the rack 262 and the pinion 261. In the case of this device, the lifting force is determined by subtracting the weights of the body holding means and the vertical moving means from the weight of the weight 25 and acting as the lifting force. Therefore, the lifting force is related to the vertical position of the body holding seat 1a. Constant force works. By exchanging the weight 25, the pushing force can be changed.
The lower limit of the rack 262 on the weight 25 side is the upper limit of the body holding seat 1a, and the lower limit of the rack 262 on the body holding seat 1a is the lower limit of the body holding seat 1a.
In the case of this device, the worker 10 can only move up and down.
Ninth embodiment
FIG. 9 shows a push-up means composed of the weight 25, an arm 251 for converting the weight of the weight 25 into a push-up force, and a cam follower 252 attached to the end of the arm 251 to push the lower end of the shaft. A work assisting device comprising an up-down slide shaft 311, up-down movement means constituted by the up-down slide bearing 312 and capable of linearly moving in the up-down direction, and a body holding seat 1 a of body holding means attached to the tip of the up-down slide shaft 311. An example is shown below.
The arm 251 is pivoted by the weight of the weight 25 attached to the arm 251 that can pivot around the shaft 253, and the vertical slide shaft 311 is pushed up by the cam follower 252 attached to the arm 251. The push-up generates a push-up force on the body holding seat 1a. By exchanging the weight 25, the pushing force can be changed.
In the case of this device, the worker 10 can only move up and down.
Tenth embodiment
FIG. 10 shows an up-down moving unit which is composed of an up-down slide shaft 311 and a slide bearing 312 and can only move linearly in the up-down direction, a body holding seat 1a of the body holding unit, and fixed to the up-down slide shaft 311. A front-rear sliding mechanism 32 of a front-rear moving means that can move in the front-rear direction, a rack 262 in which a lifting means is attached to a vertical slide shaft 311, a pinion 261 meshing with the rack 262, and a motor 29 or a fluid driving device for driving the pinion 261 An example of the work assisting device constituted by the rotary actuator 28 of FIG.
When the motor 29 is used, a motor that generates a stable torque regardless of the rotation speed is used.
The rotary actuator 28 or the motor 29 is used by generating a rotational force so as to raise the vertical slide shaft 311. When the rotary actuator 28 is used in this apparatus, a fluid supply means for feeding a fluid to the rotary actuator 28 is further provided.
This work assisting device converts the vertical slide shaft 311 into a push-up force by the pinion 261 and the rack 262 by the rotational force of the rotary actuator 28 or the motor 29.
In the case of this device, the worker 10 can only move up and down.
Eleventh embodiment
FIG. 11 shows a support 52 fixed to the floor or the base 6, and one end of the support 52 is supported by a shaft 51, and the body support seat 1 a of the body support means is attached to the other end. An example of a work assisting device constituted by an up-down moving means constituted by an arm 5 capable of turning movement in the up-down direction and a push-up means using a cylinder 21 of a fluid driving device for pushing up the arm 5 is shown.
The apparatus shown in FIG. 11 is further provided with a fluid supply means for feeding a fluid into the cylinder 21b, and a pipe for feeding the fluid from the fluid supply means is connected to a pipe port 21a.
This work assisting device generates a push-up force by the fluid fed from the fluid supply means into the cylinder 21b.
In the case of this device, the worker 10 can only move up and down.
Twelfth embodiment
FIG. 12 shows a support 52 fixed to the floor or the base 6, and one end of the support 52 is supported by a shaft 51, and the body support seat 1 a of the body support means is attached to the other end of the support 52. An example of a work assisting device constituted by an up-and-down moving means constituted by an arm 5 capable of turning movement in a vertical direction and a push-up means constituted by a tension spring 24c to push up the body holding seat 1a side of the arm 5 is shown.
In the case of this device, the worker 10 can only move up and down.
13th embodiment
FIG. 13 shows a support 52 fixed to the floor or the base 6, one end of which is supported by a shaft 51, and a body support seat 1 a of body support means attached to the other end, and the support is attached to the shaft 51. An example of a work assisting device including an up-and-down moving means constituted by an arm 5 capable of turning movement in a vertical direction and a pushing-up means pushing up the body holding seat 1a side of the arm 5 by the weight of the weight 25 is shown.
In the case of this device, the worker 10 can only move up and down.
14th embodiment
The side view of FIG. 14 and the plan view of FIG. 15 show a column 52 fixed to the floor or base 6, one end of which is pivotally supported by a shaft 51, and the other end of which is a body holding seat of body holding means. The rotation force is transmitted by an arm 5 to which a 1a is attached and which can pivot vertically in a vertical direction about a shaft 51, and a motor 29 directly connected to the arm 5 and the shaft 51 or a rotary actuator 28 of a fluid driving device. 1 shows an example of a work assisting device constituted by a push-up means for generating a push-up force on a body holding means. When the motor 29 is used, a motor that generates a stable torque regardless of the rotation speed is used. The rotary actuator 28 or the motor 29 is used by generating a rotational force in a direction to raise the body holding means. When the rotary actuator 28 is used in this device, a fluid supply means for feeding a fluid into the rotary actuator 28 is further provided, and a pipe for sending the fluid from the fluid supply means is connected.
This work assisting device generates a push-up force by the fluid fed from the fluid supply means.
In the case of this device, the worker 10 can only move up and down.
15th embodiment
FIG. 16 shows a side view of an example of a work assisting device in which the device shown in FIG. 4 is mounted on a frame 8 and wheels 81 for moving the floor are provided on the frame 8. FIG. 17 shows a plan view thereof.
The apparatus shown in FIG. 16 is further provided with a fluid supply means for feeding a fluid into the cylinder 21b, and a pipe for feeding the fluid from the fluid supply means is connected to the pipe port 21a.
This work assisting device generates a push-up force by the fluid fed from the fluid supply means into the cylinder 21b.
The worker 10 fixes his / her body to the body holding seat 1a of the body holding means with the seat belt 11, and the worker 10 moves as if walking on the floor. Therefore, the frame 8 does not hinder the movement of the foot of the worker 10 and may be formed in a stable shape, and the shape in FIG. 17 is an example.
This work assisting device allows the body holding means to freely move up and down and back and forth and left and right.
The seat belt 11 is not always necessary.
Sixteenth embodiment
FIG. 18 shows a side view of an example of a work assisting device in which the device of FIG. 3 is mounted on a frame 8 and wheels 81 for moving a floor surface are provided on the frame 8. FIG. 19 shows a plan view thereof.
The worker 10 fixes his / her body to the body holding seat 1a of the body holding means with the seat belt 11, and the worker 10 moves as if walking on the floor. Therefore, the frame 8 may be configured so as not to obstruct the movement of the foot of the worker 10 and to have a stable shape, and the shape in FIG. 19 is one example.
In the case of this work assisting device, the body holding means can freely move up and down and back and forth and left and right.
Seventeenth embodiment
FIG. 20 shows a structure in which a body holding seat 1a of the body holding means is attached and a link 7a is pivotally supported so as to be capable of swinging up and down around a shaft 73, and a link 7b swinging back and forth around a shaft 74. 1 shows an example of a work assisting device in which a vertically moving device and a lifting device for a cylinder 21 of a fluid driving device are combined.
The apparatus shown in FIG. 20 is further provided with a fluid supply means for feeding a fluid into the cylinder 21b, and a pipe for feeding the fluid from the fluid supply means is connected to the pipe port 21a.
This work assisting device generates a push-up force by the fluid fed from the fluid supply means into the cylinder 21b.
This work assisting device enables the front and rear movement by the swinging motion of the link 7b, and the vertical movement of the body holding seat 1a by the vertical swinging motion of the link 7a. In this device, the worker 10 is within a certain range. Enables vertical movement and forward / backward movement.
18th embodiment
FIG. 21 shows a link 7a to which the body holding seat 1a of the body holding means is attached, and which can pivot vertically about a shaft 73, and a link 7b which swings back and forth about a shaft 74. It comprises a vertical moving means, a motor 29 as a lifting means or a rotary actuator 28 as a fluid driving device, a turning arm 72 attached to its rotating shaft, and a connecting rod 7c connecting the turning arm 72 and the link 7a. 1 shows an example of a work assist device. This work assisting device rotates the turning arm 72 in a counterclockwise direction to generate a pushing force on the body holding seat 1a. When the rotary actuator 28 is used in this device, a fluid supply means is further provided to feed the fluid.
This work assisting device can move back and forth by swinging the link 7b back and forth, and can move the body holding seat 1a up and down by swinging the link 7a up and down. In this work assisting device, the worker 10 Vertical movement and forward / backward movement are possible within a certain range.
19th embodiment
FIG. 22 shows an example of the work assisting device in which the cylinder 21 of the work assisting device of FIG. 20 is replaced with a tension spring 24c.
This work assisting device enables the forward and backward movement of the link 7b and the up and down movement of the body holding seat 1a by the up and down swing movement of the link 7a. Movement becomes possible. A pushing force is generated by the tension of the tension spring 24c of the pushing means.
20th embodiment
FIG. 23 shows a structure in which a body holding seat 1a of the body holding means is attached and a link 7a is pivotally supported by a shaft 73 so as to be able to swing up and down, and a link 7b is supported by a shaft 74 so as to be able to swing back and forth. Now, an example of a work assisting device which is configured by combining push-up means utilizing the weight of the weight 25 attached to the link 7a will be described. In this work assisting device, the weight of the weight 25 generates a pushing force on the body holding seat 1a via the link 7a.
This work assisting device enables the front and rear movement by the swinging motion of the link 7b, and the vertical movement of the body holding seat 1a by the vertical swinging motion of the link 7a. In this device, the worker 10 is within a certain range. Enables vertical movement and forward / backward movement.
21st embodiment
FIG. 24 shows an example in which the work assisting device of FIG. 4 is provided with a forward / backward moving means in which the body holding seat 1a of the body holding means is attached to the longitudinal slide shaft 321 and the slide bearing 312 is attached to the vertical slide shaft 311.
The apparatus shown in FIG. 24 is further provided with a fluid supply means for feeding a fluid into the cylinder 21b, and a pipe for feeding the fluid from the fluid supply means is connected to the pipe port 21a.
This work assisting device generates a push-up force by the fluid fed from the fluid supply means into the cylinder 21b.
This work assist device can be moved up and down by the back and forth moving means, and can be moved up and down while generating a pushing force by the movement of the piston 211 of the pushing means.
In the case of this device, the worker 10 can move up and down and move back and forth within a certain range.
Twenty-second embodiment
FIG. 25 shows an example in which the work assisting device of FIG. 24 is provided with a left and right slide mechanism 33 of a left and right moving means capable of moving in the left and right directions. The method of use is similar to that of the device of FIG.
The apparatus shown in FIG. 25 is further provided with a fluid supply means for feeding a fluid into the cylinder 21b, and a pipe for feeding the fluid from the fluid supply means is connected to a pipe port 21a.
This work assisting device generates a push-up force by the fluid fed from the fluid supply means into the cylinder 21b.
This work assisting device is limited in that it can be moved back and forth by the back and forth moving means, up and down while generating a pushing force by the movement of the piston 211 of the cylinder 21 of the pushing up means, and left and right by the left and right moving means. It is possible to move freely including up and down movement in any direction within the range of the area.
23rd embodiment
FIG. 26 shows an example in which a left and right slide mechanism 33 of the left and right moving means is provided in the work assisting device of FIG.
This work assisting device enables the front and rear movement by the swinging movement of the link 7b and the vertical movement of the body holding seat 1a by the vertical swinging movement of the link 7a. , And can be freely moved in all directions within a limited area, including up and down movement.
Twenty-fourth embodiment
FIG. 27 shows an example in which the work assisting device of FIG.
This device operates in the same manner as the device shown in FIG. 3, and can be moved left and right by the left and right slide mechanism 33 of the left and right moving means, and can be moved left and right and up and down within a limited range.
25th embodiment
FIG. 28 shows an example in which the work assisting apparatus of FIG. 8 is provided with a left and right slide mechanism 33 of the left and right moving means and a front and rear slide mechanism 32 of the front and rear moving means below the body holding seat 1a of the body holding means. It operates in the same way as the work assisting device of FIG. 8, and can move left and right by the left and right moving means, and can move back and forth by the front and rear moving means, and can move freely including up and down movement in any direction within a limited area. It is.
26th embodiment
FIG. 29 shows an example in which the work assisting device of FIG. This device operates in the same manner as the work assisting device of FIG. 10, and can move left and right by means of left and right moving means, and can move back and forth by means of front and rear moving means, and can freely move up and down in any direction within a limited area. Movement is possible.
When the rotary actuator 28 is used in this device, a fluid supply means for feeding a fluid into the rotary actuator 28 is further provided, and a pipe for sending the fluid from the fluid supply means is connected.
This work assisting device generates a push-up force by the fluid fed from the fluid supply means.
Twenty-seventh embodiment
FIG. 30 shows an example in which the work assisting device of FIG.
The apparatus shown in FIG. 30 is further provided with a fluid supply means for feeding a fluid into the cylinder 21b, and a pipe for feeding the fluid from the fluid supply means is connected to a pipe port 21a.
This work assisting device generates a push-up force by the fluid fed from the fluid supply means into the cylinder 21b.
This device operates in the same manner as the work assisting device of FIG. 11, and moves left and right by left and right moving means and can move left and right and up and down within a limited range.
Twenty-eighth embodiment
FIG. 31 shows an example in which the work assisting device of FIG. This device operates in the same manner as the work assisting device shown in FIG. 13, and can move left and right and up and down within a limited range by moving left and right by means of left and right moving means.
29th embodiment
FIG. 32 shows a support 52 fixed on the left and right slide mechanism 33 of the left and right moving means, one end of which is pivotally supported by a shaft 51, and the front and rear slide mechanism 32 of the front and rear movement means attached to the other end. An arm 5 capable of turning vertically around a shaft 51 having a body holding seat 1a of body holding means attached to its front and rear slide mechanism 32, and a motor 29 or a fluid driving device directly connected to the arm 5 and the shaft 51 An example of the work assisting device constituted by push-up means for transmitting a rotational force by the rotary actuator 28 of FIG.
When the motor 29 is used in the apparatus shown in FIG. 32, a motor that generates a stable torque regardless of the rotation speed is used. The rotary actuator 28 or the motor 29 is used by generating a rotational force in a direction to raise the body holding means.
When the rotary actuator 28 is used in the apparatus shown in FIG. 32, a fluid supply means for feeding fluid into the rotary actuator 28 is further provided, and a pipe for sending fluid from the fluid supply means is connected.
This device operates in the same manner as the work assisting device of FIG. 14, and furthermore, the right and left movement can be performed by the left and right movement means, and the front and rear movement can be performed by the front and rear movement means. It is possible to move including it.
30th embodiment
FIG. 33 shows an example in which a left and right slide mechanism 33 of left and right moving means is provided below the work assisting device of FIG.
When the rotary actuator 28 is used in the apparatus shown in FIG. 33, a fluid supply means for feeding a fluid into the rotary actuator 28 is further provided, and a pipe for feeding the fluid from the fluid supply means is connected.
This work assisting device generates a push-up force by the fluid fed from the fluid supply means.
This device operates in the same manner as the work assisting device shown in FIG. 21, and can be moved left and right by means of left and right moving means, freely including up and down movement in any direction within a limited area.
31st embodiment
FIG. 34 shows an example in which a left and right slide mechanism 33 of left and right moving means is provided below the work assisting device of FIG.
This device operates in the same manner as the work assisting device shown in FIG. 22, and can be moved left and right by means of left and right moving means, including up and down movement freely in any direction within a limited area.
32nd embodiment
FIG. 35 shows an example in which a turning means including a rotating part 41 and a bearing 42 is provided below the work assisting device of FIG.
The body holding means of this device can move up and down while receiving a pushing force from the pushing means of the leaf spring 24b, and can swing around the axis of the swing means.
In addition, if the front and rear moving means and the left and right moving means are provided below the rotating part of this device, it can move back and forth, left and right, and can freely move in all directions within the limited area, including up and down movement It is.
33rd embodiment
FIG. 36 shows an example of the work assisting apparatus of FIG. 24 in which a turning means composed of a rotating part 41 and a bearing 42 is attached to the vertical slide shaft 311 and a sliding bearing 312 of a longitudinal moving means is attached to the rotating part 41.
The apparatus shown in FIG. 36 is further provided with a fluid supply means for feeding a fluid into the cylinder 21b, and a pipe for feeding the fluid from the fluid supply means is connected to the pipe port 21a.
This work assisting device generates a push-up force by the fluid fed from the fluid supply means into the cylinder 21b.
The body holding means of this work assisting device is moved up and down while receiving a push-up force by the movement of the piston 211 of the push-up means, forward-backward movement by forward-backward movement means comprising a front-rear slide shaft 321 and a slide bearing 312, and The turning movement about the axis can be performed.
Further, when a left-right moving means is provided below the rotating portion of the apparatus, the left-right movement can be performed, and the movement including the vertical movement can be freely performed in any direction within a limited area.
34th embodiment
FIG. 37 shows that the turning means including the rotating part 41 and the bearing 42 is mounted on the vertical slide shaft 311 of the work assisting device of FIG. 29, the front and rear sliding mechanism 32 of the front and rear moving means is mounted on the rotating part 41, An example in which the slide mechanism 33 is mounted is shown.
When the rotary actuator 28 is used in the apparatus shown in FIG. 37, a fluid supply means for feeding a fluid into the rotary actuator 28 is further provided, and a pipe for feeding the fluid from the fluid supply means is connected.
This work assisting device generates a push-up force by the fluid fed from the fluid supply means.
The body holding means of this device moves up and down while receiving a push-up force from a motor 29 of the push-up means or a rotary actuator 28 of a fluid driving device, a longitudinal movement by a longitudinal slide mechanism 32 of the longitudinal movement means, And the right and left movement by the left and right movement means mounted below the device, and can freely move in any direction within a limited area, including up and down movement.
35th embodiment
FIG. 38 shows an example in which the work assisting device of FIG.
The apparatus is further provided with a fluid supply means for feeding a fluid into the cylinder 21b, and a pipe for feeding the fluid from the fluid supply means is connected to the pipe port 21a.
This work assisting device generates a push-up force by the fluid fed from the fluid supply means into the cylinder 21b.
The body holding means of this device can move up and down while receiving the pushing force from the pushing up means, and can turn around the axis of the turning means.
36th embodiment
FIG. 39 shows an example in which a turning means comprising a rotating part 41 and a bearing 42 is attached to the work assisting apparatus of FIG. 13, and a left and right slide mechanism 33 of left and right moving means is attached below the apparatus.
The body holding means of this device moves up and down while receiving the pushing force of the weight 25 of the pushing up means, turning movement around the axis of the rotating means, and left and right movement by the left and right moving means attached below the device. It is possible to move freely including up and down movement in any direction within a limited area.
37th embodiment
FIG. 40 shows an example in which the work assisting device shown in FIG. 14 is attached to a rotating means consisting of a rotating part 41 and a bearing 42, and a left and right slide mechanism 33 of left and right moving means is attached below the device.
When the rotary actuator 28 is used in this apparatus, a fluid supply means for feeding a fluid to the rotary actuator 28 is further provided.
The body holding means of this device moves up and down while receiving a push-up force from a motor 29 of the push-up means or a rotary actuator 28 of a fluid driving device, a longitudinal movement by a longitudinal slide mechanism 32 of the longitudinal movement means, And the right and left movement by the left and right movement means mounted below the device, and can freely move in any direction within a limited area, including up and down movement.
35th embodiment
FIG. 38 shows an example in which the work assisting device of FIG.
The apparatus is further provided with a fluid supply means for feeding a fluid into the cylinder 21b, and a pipe for feeding the fluid from the fluid supply means is connected to the pipe port 21a.
This work assisting device generates a push-up force by the fluid fed from the fluid supply means into the cylinder 21b.
The body holding means of this device can move up and down while receiving the pushing force from the pushing up means, and can turn around the axis of the turning means.
36th embodiment
FIG. 39 shows an example in which a turning means comprising a rotating part 41 and a bearing 42 is attached to the work assisting apparatus of FIG. 13, and a left and right slide mechanism 33 of left and right moving means is attached below the apparatus.
The body holding means of this device moves up and down while receiving the pushing force of the weight 25 of the pushing up means, turning movement around the axis of the rotating means, and left and right movement by the left and right moving means attached below the device. It is possible to move freely including up and down movement in any direction within a limited area.
37th embodiment
FIG. 40 shows an example in which the work assisting device shown in FIG. 14 is attached to a rotating means consisting of a rotating part 41 and a bearing 42, and a left and right slide mechanism 33 of left and right moving means is attached below the device.
When the rotary actuator 28 is used in this apparatus, a fluid supply means for feeding a fluid to the rotary actuator 28 is further provided.
The body holding means of this device moves up and down while receiving a pushing force from the motor 29 of the pushing means or the rotary actuator 28 of the fluid driving device, a turning movement around the axis of the turning means, and an attachment below the device. The left and right moving means can move left and right, and can freely move in all directions within a limited area, including up and down movement.
38th embodiment
The work assisting apparatus shown in the side view 41 and the front view 42 supports the shaft 53 of the arm 54 with the arm 5 to which the body holding seat 1 a of the body holding means is attached and the bearing 42 held by the bearing member 43, and The arm 54 is configured to be able to swing back and forth, and a motor 29 of a lifting means or a rotary actuator 28 of a fluid driving device is attached and fixed to the tip of the arm 54, and the rotation axis of the motor 29 or the rotary actuator 28 is attached to the arm. 5 shows an example in which it is connected to a shaft 51 fixed to 5.
This device generates a push-up force by rotating the rotating shaft of the motor 29 or the rotary actuator 28 in the direction in which the body holding seat 1a rises.
When the motor 29 is used in the apparatus shown in FIG. 41, a motor that generates a stable torque regardless of the rotation speed is used.
When the rotary actuator 28 is used in the apparatus shown in FIG. 41, a fluid supply means for feeding a fluid to the rotary actuator 28 is further provided.
With this device, the worker 10 can move up and down and move back and forth within a certain range.
Further, when the left and right moving means for mounting the bearing member 43 of the device is provided, the left and right movement can be performed, and the movement including the vertical movement can be freely performed in any direction within a limited area. 39th embodiment
FIG. 43 shows an example in which the work assisting device shown in FIG. 21 is mounted on a turning means including a rotating part 41 and a bearing 42. When the rotary actuator 28 is used in this device, a fluid supply means is further provided for sending fluid to the rotary actuator 28.
This device can be moved up and down and back and forth by means of up-and-down and back-and-forth moving means composed of links 7a and 7b, as in the device of FIG. 21, and furthermore, it can be turned around the axis of the turning means. It is possible to move freely including up and down movements in any direction within the range of the area that is set.
40th embodiment
FIG. 44 shows an example in which the work assisting device of FIG. 22 is mounted on a turning means including a rotating part 41 and a bearing 42.
This device generates a push-up force by the tension of the tension spring 24c of the push-up means as in the device of FIG. 22, and the body holding means is constituted by the links 7a and 7b while receiving the push-up force from the push-up means. Up and down and back and forth movement means that allows up and down movement and back and forth movement, and also enables swivel movement around the axis of the swivel means, allowing free movement in all directions within a limited area, including up and down movement become.
Further, when the left and right moving means are provided below the turning means of this apparatus, the left and right movement can be performed, and the movement including the vertical movement can be freely performed in all directions within a limited area in a wide range.
41st embodiment
FIG. 45 shows an example in which the work assisting device of FIG. 20 is mounted on a turning means including a rotating part 41 and a bearing 42.
The apparatus shown in FIG. 45 is further provided with a fluid supply means for feeding a fluid into the cylinder 21b, and a pipe for feeding the fluid from the fluid supply means is connected to the pipe port 21a.
This work assisting device generates a push-up force by the fluid fed from the fluid supply means into the cylinder 21b.
This device generates a push-up force by the pulling force of the cylinder 21 of the push-up means, and the body holding means receives the push-up force from the push-up means while moving up and down by the up-down and front-rear moving means constituted by the link 7a and the link 7b. It can be moved and moved back and forth, and furthermore, can be turned around the axis of the turning means, and can be freely moved, including up and down, in any direction within a limited area.
Further, when the left and right moving means are provided below the turning means of this apparatus, the left and right movement can be performed, and the movement including the vertical movement can be freely performed in all directions within a limited area in a wide range.
42nd embodiment
The work assisting device shown in the plan view 46 and the side view 47 is a cylinder 21 of a fluid drive device which operates by a fluid and generates a pushing force, and the rod portion thereof is used as a vertical slide shaft 311 so as to movably hold the vertical slide shaft 311. A sliding bearing 312 is provided to serve as a vertical moving means capable of only linear movement in the vertical direction. One end of a link 7b is rotatably supported around the vertical sliding shaft 311, and a shaft 73 is fixedly attached to the other end. A link 7c in which one end of the link 7a is rotatably supported about the shaft 73, a shaft 74 is fixedly attached to the other end, and the body holding seat 1a of the body holding means is attached to the shaft 74. An example is shown in which is rotatably supported.
The apparatus shown in FIG. 46 is further provided with a fluid supply means for feeding a fluid into the cylinder 21b, and a pipe for feeding the fluid from the fluid supply means is connected to the pipe port 21a.
This work assisting device generates a push-up force by the fluid fed from the fluid supply means into the cylinder 21b.
The body holding means of this device can move up and down while receiving the push-up force of the cylinder 21 of the push-up means, and can move back and forth, right and left, and turn by the links 7a and 7b, within a limited area. It is possible to move freely in any direction, including up and down movement.
43rd embodiment
FIG. 48 shows a structure in which a rotating part 41 and a turning means for a bearing 42 are provided above a support 52 fixed to a floor or a base 6, and an arm 5 is attached to the turning means so that the arm 5 can be turned. 1 shows an example of a work assisting device provided with a body holding seat 1a of a holding means and a cylinder 21 of a fluid driving device of a push-up means for pushing up the body holding seat 1a.
The apparatus shown in FIG. 48 is further provided with a fluid supply means for feeding a fluid into the cylinder 21b, and a pipe for feeding the fluid from the fluid supply means is connected to the pipe port 21a.
This work assisting device generates a push-up force by the fluid fed from the fluid supply means into the cylinder 21b.
The body holding means of this device can be moved up and down by the turning movement of the arm 5 and the operation of the cylinder 21 of the push-up means.
Forty-fourth embodiment
FIG. 49 shows a support 75 fixed to the floor or the base 6 and one end of the link 7b rotatably supported around the support 75, and a shaft 73 fixedly attached to the other end. One end of the link 7a is rotatably supported at the center, and a shaft 74 is fixedly attached to the other end, and one end of the link 7c is rotatably supported on the shaft 74, and is pressed on the other end. The cylinder 21 of the fluid drive device of the lifting means is attached, the body holding seat 1a of the body holding means is attached to the rod 212 of the cylinder 21, the support 75 and the link 7b, the shaft 73 and the link 7a, the shaft 74 and the link 7c. An example is shown in which a brake 75 is used to fix the brake.
The apparatus shown in FIG. 49 is further provided with a fluid supply means for feeding a fluid into the cylinder 21b, and a pipe for feeding the fluid from the fluid supply means is connected to the pipe port 21a.
This work assisting device generates a push-up force by the fluid fed from the fluid supply means into the cylinder 21b.
The body holding means of this device can move up and down while receiving the push-up force of the cylinder 21 of the push-up means, and can move forward and backward, move to the left and right, and turn by the links 7a, 7b and 7c. It is possible to move freely including up and down movement in any direction within the range.
When the three brakes 75 are actuated, horizontal movement such as back and forth, left and right, turning movement, etc. cannot be performed. When the cylinder 21 is further stopped from being pushed up, the body holding seat 1a is stopped at a fixed position and the chair is used. It becomes the same state as the state.
The operation of the brake 75 and the operation of the cylinder 21 are configured to be possible by a switch operation, and the worker 10 operates, so that the worker can freely sit in a chair or the like at a position desired by the worker 10 to facilitate work. I do.
45th embodiment
FIG. 50 shows a plan view of the body holding seat 1a of the body holding means. By providing the protrusion 1a1 at the front of the body holding seat 1a so that the leg 10a of the worker 10 does not come off, the body holding seat 1a can be pushed up from below and by the protrusion 1a1 without providing the seat belt 11. Can move freely up and down, left and right, front and back, etc. without coming off the buttocks when moving. Note that the protrusion 1a1 may be configured on only one side. If the protrusion 1a1 is provided on only one side and the protrusion 1a1 is configured to be rotatable downward, it becomes easier for the worker 10 to remove the leg 10a from the body holding seat 1a.
Further, in the case of an apparatus having a function of stopping the pushing force of the pushing means, the detector 12 is attached to the body holding seat 1a so that the pushing means operates after detecting that the worker 10 is seated. Can be configured.
FIG. 51 shows an example in which the detector 12 is provided below the body holding seat 1a. The member 13 is movably assembled to the hole of the member 14, the body holding seat 1a is attached to the member 13, and the body holding seat 1a is lifted by the compression spring 24a. When the worker 10 sits on the body holding seat 1a and gains weight, the member 13 descends, approaches the detector 12, and the detector 12 operates. If the push-up means is operated to generate a push-up force after the detection signal is generated, the device is easy to use and the safety is enhanced.
46th embodiment
FIG. 52 shows an example in which the body holding means is constituted by a cloth-shaped body holding belt 1b. The worker 10 passes his / her feet through the body holding belt 1b, tightens and fixes the belt connection fitting 1b, and attaches the rear portion of the body holding belt 1b to the lifting means to push up.
47th embodiment
FIG. 53 shows an example in which the pressurizing tank 22 of the fluid supply means is connected to the cylinder 21 of the lifting means by a pipe 226. The pressurized tank 22 and the cylinder 21 are connected by a pipe 226, and high-pressure gas is sealed in the tank 221 and the cylinder 21b. The high pressure gas pushes up the piston 211 to generate a pushing up force.
The flow control valve 23b can control the rising speed of the piston 211 by adjusting the flow rate of the air exhausted from the pipe port 21c. However, the flow control valve 23b is not always necessary.
Further, as the volume of the tank 221 is made larger than the volume of the cylinder 21b, the change in the pushing force due to the change in the position of the piston 211 becomes smaller.
When the rotary actuator 28 is used, the portion of the cylinder 21 is changed to the rotary actuator 28 and the pipe 226 is connected.
Forty-eighth embodiment
FIG. 54 shows an example in which a tank portion serving as a fluid supply means is arranged below the cylinder 21. A high-pressure gas is sealed in the tank 21e and the cylinder 21b. The high pressure gas pushes up the piston 211 to generate a pushing up force. The flow control valve 23b can control the rising speed of the piston 211 by adjusting the flow rate of the air exhausted from the pipe port 21c. However, the flow control valve 23b is not always necessary.
Further, as the capacity of the tank 21e is made larger than the capacity of the cylinder 21b, the change in the pushing force due to the change in the position of the piston 211 becomes smaller.
In the case of using only the normal cylinder 21 instead of using the fluid supply means as shown in FIGS. 53 and 54, the length of the cylinder 21 is made several times longer than the stroke of the body holding means. This makes it possible to use the longer space 21b in the cylinder as a space for storing gas, and to obtain the same effects as in FIGS. 53 and 54.
49th embodiment
FIG. 55 shows an example in which the fluid supply means is constituted by the pressurized tank 22 in which the gas 221 and the liquid 222 are sealed. The pressurized tank 22 of the fluid supply means and the cylinder 21 of the push-up means are connected by a pipe 226. A liquid 222 is charged into the cylinder 21, the pressurized tank 22, and the pipe 226 as shown in the figure, and a high-pressure gas 221 is sealed in a space above the pressurized tank 22. The liquid 222 is pressurized by the high-pressure gas, and the liquid 222 pushes up the piston 211 to generate a pushing-up force.
When the flow rate control valve 23b is provided in the pipe 226 to control the flow of the liquid 222, the speed of the piston 211 can be controlled. Further, a valve 26 is further provided in the pipe 226. When the valve 26 is opened, the piston 211 rises, and when the valve 26 is closed, the piston 211 stops. When this is used as the push-up means, the vertical movement of the body holding means can be stopped by operating the valve 26 regardless of its position. Since the fluid supply means uses the liquid 222, the speed of the piston 211 of the cylinder 21 can be controlled.
When the rotary actuator 28 is used as the lifting means, the portion of the cylinder 21 is changed to the rotary actuator 28 and the pipe 226 is connected.
Further, when compressed air is supplied to the pressurized tank 22 from a compressor or the like and the pressure of the compressed air is adjusted by the pressure reducing valve, the pushing force of the pushing means can be adjusted.
In addition, a manual pump for sending air to the pressurized tank 22 and an exhaust valve for exhausting air in the pressurized tank 22 are installed, and the pressure of the air in the pressurized tank 22 is adjusted. The lifting force of the lifting means can be adjusted.
50th embodiment
FIG. 56 shows an example in which the fluid supply means includes a piston 211a, a rod 212a, a pressurizing cylinder 27, and a weight 25, and is connected to the cylinder 21 by a pipe 226.
A liquid 222 is put into the cylinder 21, the pressurizing cylinder 27 and the pipe 226 as shown in the figure, and the piston 211a of the pressurizing cylinder 27 is pressurized by the weight of the weight 25 attached to the rod 212a, and the pressure is converted to the liquid 222. In addition, the pressure of the liquid 222 pushes up the piston 211 of the cylinder 21, and the force is used as the pushing up force of the pushing up means. 55, when the flow control valve 23b and the valve 26 are provided in the pipe 226, the speed control of the piston 211 of the cylinder 21 and the stop of the vertical movement operation can be performed.
Also, by changing the weight of the weight 25, the pushing force of the pushing means can be changed.
When the rotary actuator 28 is used as the lifting means, the portion of the cylinder 21 is changed to the rotary actuator 28 and the pipe 226 is connected.
51st embodiment
FIG. 57 shows an example in which the fluid supply means includes a piston 211a, a compression spring 24a, an adjusting screw 227 for pushing down and compressing the compression spring 24a, and a pressure cylinder 27. The pressurizing cylinder 27 is connected to the cylinder 21 by a pipe 226, and a liquid 222 is charged into the cylinder 21, the pressurizing cylinder 27, and the pipe 226 as shown in the figure, and the piston 211a of the pressurizing cylinder 27 is compressed by a compression spring 24a. Apply pressure. Adjustment screw 227 adjusts the pressure. The pressure of the piston 211a pushes up the piston 211 of the cylinder 21 via the liquid 222, and the force is used as a push-up force of the push-up means. When the flow control valve 23b and the valve 26 are provided in the pipe 226 as in the apparatus of FIG. 55, it is possible to control the speed of the piston 211 of the cylinder 21 and stop the vertical movement operation.
Other embodiments
Since the seat belt 11 attached to the body holding means fixes and integrates the waist of the worker 10 with the body holding means, it is easy to move back and forth, right and left. However, it is not always necessary.
In addition, the detector 12 is incorporated in the attaching / detaching portion of the seat belt 11, and when the seat belt 11 is removed, the flow of the liquid 222 is stopped by the electromagnetic valve, the pushing force of the pushing means is stopped, and the body holding means is stopped. Can be done. Further, when the body is fixed with the seat belt 11 across the body holding seat 1a of the body holding means, the electromagnetic valve is opened to make the liquid 222 flow, and a pushing force for pushing up the body holding means can be exerted. FIG. 58 shows an example in which a position fixing rod 1c is provided below the body holding means of the apparatus shown in FIG. When the body holding means descends to a sitting posture position when sitting on a chair, the position fixing rod 1c touches the floor or the base 6 and stops descending, further stops horizontal movement in the left, right, front and rear directions and fixes the body holding means. I do. When the position is changed to the side, the waist is slightly lifted and moved to the side, and when the user lowers the waist, it is fixed again at that position, and the sitting posture can be stabilized.
[0007]
【The invention's effect】
The present invention has the following effects.
When the worker uses the work assisting device of the present invention to work, the worker's feet are always set to a lifting force within a range that can keep a groundable state on the floor surface or the base surface of the device. Even when the height of the waist, middle posture, standing posture, sitting posture and waist are changed frequently, the load on the legs is very small compared to the case where the work assist device is not used, so the posture can be changed quickly and the same posture Can be easily maintained.
Further, in the case of a work assisting device having a front-back, left-right movement mechanism, the mid-lumbar posture, the standing posture, the sitting posture and the waist height are frequently changed, and the front-back, left-right No particular operation is required in the work of moving, and the worker simply unconsciously performs his or her posture and movement. It is characterized in that it can freely change its posture and move because it moves following.
In the case of a work assisting device having a push-up force adjustment function, the push-up force can be adjusted freely to a state close to no load by adjusting the push-up force, so that the worker can reach the floor or the base surface of the device. It is possible to freely select a load that is easy to work in a state and has little load on the legs. As a result, the load on the legs can be slightly reduced even when the mid-low back posture or the standing posture is maintained. In addition, when the worker performs the rising operation from the sitting posture, it becomes possible by applying a slight force to the legs.
Therefore, not only healthy people, but also elderly people with weak legs and weakness, people without physical strength, or people with lower body disabilities, can work without difficulty for long periods of time, work with a lot of changes in posture, work with intense front-to-left and right-to-left movement, and mid-low back posture Can be performed with less fatigue. Also, if the lifting means is provided with a lower limit position, and the body holding means is located at the lower limit position so as to be equivalent to a posture in which the worker is sitting on a chair, the worker may be allowed to stand in a standing posture and , The body holding means and the worker descend and take a posture of sitting on a chair.
As described above, since the load on the leg of the worker is small, the fatigue of the leg is small, and it is possible to maintain the middle waist posture and the standing posture and change the posture with a small force, and increase the movement speed of the body Work efficiency.
[Brief description of the drawings]
FIG. 1 is a side view of a first embodiment.
FIG. 2 is a side view of the second embodiment.
FIG. 3 is a side view of the third embodiment.
FIG. 4 is a side view of a fourth embodiment.
FIG. 5 is a side view of a fifth embodiment.
FIG. 6 is a side view of a sixth embodiment.
FIG. 7 is a side view of the seventh embodiment.
FIG. 8 is a side view of the eighth embodiment.
FIG. 9 is a side view of the ninth embodiment.
FIG. 10 is a side view of the tenth embodiment.
FIG. 11 is a side view of an eleventh embodiment.
FIG. 12 is a side view of the twelfth embodiment.
FIG. 13 is a side view of the thirteenth embodiment.
FIG. 14 is a side view of Embodiment 14.
FIG. 15 is a plan view of an embodiment 14.
FIG. 16 is a side view of the fifteenth embodiment.
FIG. 17 is a plan view of Embodiment 15;
FIG. 18 is a side view of the sixteenth embodiment.
FIG. 19 is a plan view of the sixteenth embodiment.
FIG. 20 is a side view of the seventeenth embodiment.
FIG. 21 is a side view of the embodiment 18.
FIG. 22 is a side view of the nineteenth embodiment.
FIG. 23 is a side view of the twentieth embodiment.
FIG. 24 is a side view of the twenty-first embodiment.
FIG. 25 is a side view of the twenty-second embodiment.
FIG. 26 is a side view of the twenty-third embodiment.
FIG. 27 is a side view of the twenty-fourth embodiment.
FIG. 28 is a side view of the twenty-fifth embodiment.
FIG. 29 is a side view of the twenty-sixth embodiment.
FIG. 30 is a side view of the twenty-seventh embodiment.
FIG. 31 is a side view of the twenty-eighth embodiment.
FIG. 32 is a side view of the embodiment 29.
FIG. 33 is a side view of the thirtieth embodiment.
FIG. 34 is a side view of the embodiment 31.
FIG. 35 is a side view of the embodiment 32.
FIG. 36 is a side view of the embodiment 33.
FIG. 37 is a side view of the thirty-fourth embodiment.
FIG. 38 is a side view of the embodiment 35.
FIG. 39 is a side view of the embodiment 36.
FIG. 40 is a side view of the embodiment 37.
FIG. 41 is a side view of embodiment 38.
FIG. 42 is a front view of an embodiment 38.
FIG. 43 is a side view of the thirty-ninth embodiment.
FIG. 44 is a side view of the embodiment 40.
FIG. 45 is a side view of the embodiment 41.
FIG. 46 is a plan view of embodiment 42.
FIG. 47 is a side view of the embodiment 42.
FIG. 48 is a side view of embodiment 43.
FIG. 49 is a side view of embodiment 44.
FIG. 50 is a plan view of embodiment 45.
FIG. 51 is a side view of embodiment 45.
FIG. 52 is a perspective view of embodiment 46.
53 is a side view of embodiment 47. FIG.
FIG. 54 is a side view of embodiment 48.
FIG. 55 is a side view of embodiment 49.
FIG. 56 is a side view of the embodiment 50.
FIG. 57 is a side view of embodiment 51.
FIG. 58 is a side view of another embodiment.
[Explanation of symbols]
1a Body holding seat
10 workers
11 Seat belt
21 cylinder
211 piston
22 Pressurized tank
23b Flow control valve
24a compression spring
24b leaf spring
24c tension spring
25 weight
27 Pressurizing cylinder
28 Rotary actuator
29 motor
311 Vertical slide axis
312 slide bearing
32 Front and rear slide mechanism
33 Left and right slide mechanism
41 Rotating part
42 Bearing
5 arm
51 axes
52 props
6 floor or base
7a link
7b link
7c link
75 Brake
8 frames
81 wheels
12 Detector

Claims (10)

Body holding means for holding a body part of a worker (10) performing a manufacturing operation while performing a posture change in which the waist height changes, and a worker (10) during work holding the body part with the body holding means Range in which the operator can follow the movement of changing the height of the waist by bending and stretching the legs while pushing up the body holding means and keeping the feet of the worker (10) on the floor or on the base (6) surface. A work assisting device comprising push-up means for applying a push-up force from the floor to the body holding means. 2. The work assisting device according to claim 1, further comprising a vertical movement means for restricting the movement of the body holding means in a vertical direction to enable vertical movement. The work assisting device according to claim 1 or 2, wherein the body holding means and the lifting means are mounted on a frame (8), and wheels (81) capable of freely moving on a floor surface are mounted on the frame (8). The work assisting device according to claim 1 or 2, further comprising a forward / backward moving unit that enables the movement of the body holding unit to move in the forward / backward direction. 2. The work assisting device according to claim 1, further comprising up-down and back-and-forth moving means capable of moving the body holding means up and down and back and forth. 6. The work assisting device according to claim 1, further comprising left-right moving means for enabling movement of the body holding means in the left-right direction. 3. A swivel means having a center at a position away from the body of the worker (10) held by the body holding means and allowing the body holding means to freely swivel in a horizontal direction. The work assisting device according to claim 4, claim 5, or claim 6. 5. The fluid driving device in which the lifting means is operated by a fluid, and a fluid supply device for supplying a fluid pressurized to the fluid driving device. The work assisting device according to claim 5 or claim 6. 7. The body holding means is provided with a detecting means for detecting that the weight of the worker (10) has been added to the body holding means. Or the work assistance device according to claim 7. Body holding means for holding a body part of a worker (10) performing a manufacturing operation while performing a posture change in which the waist height changes, and a worker (10) during work holding the body part with the body holding means Range in which the operator can follow the movement of changing the height of the waist by bending and stretching the legs while pushing up the body holding means and keeping the feet of the worker (10) on the floor or on the base (6) surface. A manufacturing operation method in which an operation is performed using an apparatus constituted by a push-up means for applying a push-up force from inside the floor to the body holding means.

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