Cylinder-type standing work aid

Abstract

To provide a cylinder-type standing work aid that solves a problem that, in standing work, fatigue and pain occur since loads on feet, waist, and knees are large due to a load on a human body.SOLUTION: By air pressure encapsulated cylinders 1a, 1b having inner cylinder and outer cylinder formed of an aluminum drawn tube, a human body is lifted up all the time, so that loads on feet, waist, and knees are reduced to relax fatigue and pain.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a cylinder-type standing work assist device that uses a cylinder made of an aluminum drawn tube to constantly lift the human body and reduce the burden on the feet, waist, and knees because the burden on the feet, waist, and knees during standing work is large, causing fatigue and pain.

Background Art

[0002] During standing work, since the feet, waist, and knees are constantly burdened, fatigue and pain occur, making the work strenuous.

[0003]

Patent Documents

Disclosure of the Invention

Problems to be Solved by the Invention

[0004] During standing work, since the feet, waist, and knees are constantly burdened, fatigue and pain occur.

Means for Solving the Problems

[0005] During standing work, the force of the cylinders 1a and 1b made of an aluminum drawn tube with pneumatic pressure sealed therein and attached to the human body is used to lift the human body, thereby reducing the burden on the feet, waist, and knees and alleviating fatigue and pain. To facilitate movement, the outer cylinder of the cylinder is attached to the waist, and the lower part of the inner cylinder of the cylinder is attached to the work boot part.

Effects of the Invention

[0006] The burden on the human body during standing work is borne by the pneumatic pressure sealed cylinders 1a and 1b, reducing the burden on the feet, waist, and knees. The pneumatic pressure sealed cylinders 1a and 1b are attached to the human body with fixtures 2 and holders 3. The lower part of the cylinder is fixed to the work boot holders 4a and 4b. Hereinafter, embodiments of the present invention will be described. (a) When standing and working, the pneumatic cylinders 1a and 1b are attached to the human body by the fixture 2 and the holder 3, and the pneumatic pressure of the cylinders acts in the direction of always lifting the human body during work.

Example 1

[0007] Figure 1 shows the state of attaching the cylinder - type standing - work assist device to the human body. Figure 2 shows the state during agricultural work with the cylinder - type standing - work assist device attached. Figure 3 shows the cross - sectional shape of the cylinder. Figure 4 shows the details of parts A - C of the cylinder cross - section.

[0008] In Figure 1, the side and back views of the cylinder - type standing - work assist device are shown in the state of being attached to the human body. The outer cylinders of the pneumatic cylinders 1a and 1b are attached to the waist by the fixture 2, the holder 3, and the cylinder attachments 5a and 5b, and receive the human - body lifting force by the cylinders. The lower seal fitting 12 of the inner cylinder 11 of the cylinder is attached to the work - boot holders 4a and 4b, and the reaction force of the human - body lifting force of the cylinder is received by the work - boot holders. The cylinder stroke is adjusted according to the height by the cylinder - stroke adjustment wires 6a and 6b. The fine adjustment of the stroke is adjusted by the bolts of the wire - adjustment bolt attachments 8a and 8b. To enable easy movement of the human body, adjusters are attached to the cylinder attachments 5a and 5b and the work - boot holders 4a and 4b. As the stroke end when squatting, the cylinder - stroke lower - limit set collars 7a and 7b are attached.

[0009] In Figure 2, the state when using a hoe during agricultural work is shown. The attachment state of the cylinder - type standing - work assist devices 1a and 1b is shown. The movement during work can be done easily. For example, when operating a lawn mower, the weight of the lawn mower can be held by the fixture 2.

[0010] In Fig. 3, the cylinder cross-sectional shapes of the pneumatic cylinders 1a and 1b of the cylinder-type standing work assist device are shown. The outer cylinder 10 and the inner cylinder 11 are aluminum drawn tubes. For preventing the outer cylinder and the inner cylinder from being pulled out, the lower seal fitting 12 and the upper seal fitting 13 are connected by a retaining wire 16. The pneumatic pressure is enclosed from the pneumatic supply fitting 17 with a check valve. A guide fitting 14 is attached to the lower part of the outer cylinder 10 and guides and slides on the inner cylinder 11. An adjuster 15 that can freely tilt is attached to the connection part of the lower seal fitting 12 of the inner cylinder 11 with the work boot holders 4a and 4b. Using the property of the pneumatic pressure PV κ =constant, water is enclosed inside the cylinder to control the volume of the air chamber, and the force can be controlled by the cylinder stroke.

[0011] In Fig. 4, the cross-sectional shape details of parts A, B, and C of the cylinder cross-sectional shape in Fig. 3 are shown. In the details of part A, the seal details between the piston 18 and the outer cylinder 10 are shown. The piston 18 is fixed to the inner cylinder 11 with a retaining pin 20. The attachment details of the guide fitting 14 to the outer cylinder 10 and the penetration state of the retaining wire 16 through the piston 18 are shown. In the details of part B, the upper seal fitting 13 is attached to the outer cylinder 10 with a retaining pin 19, and the seal details are shown. The attachment of the pneumatic supply fitting 17 with a check valve and the attachment state of the retaining wire 16 are shown. In the details of part C, the lower seal fitting 12 is attached to the inner cylinder 11 with a retaining pin 21, and the seal details are shown. The attachment of the adjuster 15 and the attachment state of the retaining wire 16 are shown.

Brief Description of the Drawings

[0012]

Figure 1

Figure 2

Figure 3

Figure 4

Explanation of Reference Numerals

[0013] 1a Outer cylinder of pneumatic filling cylinder 10 1b Inner cylinder of pneumatic filling cylinder 11 2 Lower seal fitting of fixture 12 3 Upper seal fitting of retainer 13 4a Guide fitting of work boot retainer 14 4b Adjustment of work boot retainer 15 5a Withdrawal prevention wire of cylinder mounting tool 16 5b Pneumatic supply fitting with check valve of cylinder mounting tool 17 6a Piston of cylinder stroke adjustment wire 18 6b Withdrawal prevention pin of cylinder stroke adjustment wire 19 7a Withdrawal prevention pin of cylinder stroke lower limit set collar 20 7b Withdrawal prevention pin of cylinder stroke lower limit set collar 21 8a Wire adjustment bolt mounting tool 8b Wire adjustment bolt mounting tool

Claims

[Claim 1] A cylinder-type standing work aid characterized in that the inner and outer cylinders are made of drawn aluminum pipes, the lower sealing fitting of the inner cylinder and the upper sealing fitting of the outer cylinder are connected with a stop wire to prevent the inner and outer cylinders from coming loose due to the air pressure being trapped inside, an air pressure supply fitting with a check valve that traps air pressure and seals the internal pressure is attached to the upper sealing fitting of the outer cylinder, a fixing device and a holder are attached to secure the air pressure-sealed cylinder to the human body, and a cylinder stroke adjustment wire is attached to adjust the cylinder stroke, so that the human body is constantly subjected to a lifting force by the air pressure inside the cylinder.

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