JP2008168102A - Cylinder stool for light work - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that an aid which can be easily carried and used immediately on the spot is demanded since there is a lot of work in a half-sitting position for the light work of machine assembly, trial run adjustment, and wiring and piping, work time at the height is long, pains and fatigue are generated by the burdens of body weight put on the feet, the knees and the lower back, and a work place is often changed. <P>SOLUTION: In order to easily execute work at any height, a safety strap 2 with a metal fitting is attached and the burden of the body weight is received by two pneumatic cylinders. The lower sides of the pneumatic cylinders 1a and 1b are fixed to safety shoe holders 3a and 3b and the upper sides are fixed to the end face of the safety strap 2 with the metal fitting. The safety strap with the metal fitting is fixed to the thigh of a worker, it follows the worker simultaneously when he/she walks. Since the safety strap with the metal fitting for receiving the buttocks is lifted by the pneumatic cylinders matched with a work posture, a large part of the body weight is received at all times. When cylinder vertical movement is locked, all the body weight can be received. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a light-working cylinder stool that receives a load of weight on the legs, knees, and waist during a mechanical assembly, trial run adjustment, and light work on the middle waist of wiring piping as a safety belt used as a stool.

Machine assembly, trial operation adjustment, and light work of wiring piping are quite middle and low back work. Also, since the working time at that height is quite good, pain and fatigue occur due to the burden of weight on the feet, knees and hips.

JP 2001-128791 A, JP 2001-057919 A JP 2003-125607 A, JP 2003-019055 A

Machine assembly, trial operation adjustment, and light work of wiring piping are quite middle and low back work. Also, since the working time at that height is quite good, pain and fatigue occur due to the burden of weight on the feet, knees and hips. Because the work place changes frequently, it is necessary to make it easy to move.

In order to facilitate work at any height, a safety band 2 with a bracket is attached as a seat, and the burden of weight is received by the pneumatic cylinders 1a and 1b.
The lower side of the pneumatic enclosure cylinders 1a and 1b is fixed to the safety shoe holders 3a and 3b, and the upper side is fixed to the end face of the safety band 2 with brackets. The safety band with brackets is fixed at the thigh of the worker, so it can be followed at the same time as walking. The safety band with metal fittings that receives the hips according to the work posture is lifted by the pneumatic cylinder, so it always receives most of its weight. If you lock the cylinder lift, you can receive all of your weight.

In order to be able to sit at any height of the middle waist, the safety band with bracket 2 is attached, and the weight is applied to the legs, knees and hips because the weight is received by two pneumatic sealed cylinders. Since the pneumatic cylinders 1a and 1b are attached to a safety shoe holder and a safety band with brackets fixed to the thigh of the worker, the pneumatic sealing cylinders 1a and 1b follow simultaneously when the worker walks.
Hereinafter, embodiments of the present invention will be described.
(I). The safety band 2 with metal fittings that can be used as a stool at any height is lifted by two pneumatic cylinders, and it is kept at the same time as the worker walks. The pneumatic enclosure cylinders 1a and 1b are provided with a handle type lock mechanism.

FIG. 1 shows a front view, a side view, and a plan view of an operator sitting on a light work cylinder stool. FIG. 2 shows a cross-sectional view of the pneumatic enclosure cylinder and a detailed cross-sectional view of each part of A, B, and C.

In FIG. 1, the components of the light work cylinder seat are shown. The lower parts of the pneumatic cylinders 1a, 1b are attached to the ball pads 5b of the safety shoe holders 3a, 3b, and the upper parts are attached to the ball pads 5a of the safety band 2 with brackets. The metal safety band 2 is fixed to the operator's thigh and has a handle 7 at the top. A handle 6 is attached to the pneumatic cylinders 1a and 1b so as to be locked at any position in the stroke. Guide wheels 4 are attached to the safety shoe holders 3a and 3b in order to reduce the burden when the worker walks.

In FIG. 2, the components of the pneumatic cylinders 1a and 1b are shown in a sectional view of the pneumatic cylinder. The air pressure is sealed in the cylinder outer cylinder 10 and the cylinder inner cylinder 11, and ball screws 12a and 12b are attached to the upper and lower parts so as to be inclined at any angle. Air leak-preventing flat packings 13a and 13b are attached to the screwed portions. A rubber buffer 22 is attached to the shock buffer at the lowest position.

In FIG. 2, the details of the A part show the mounting state of the ball screw 12 a, the flat packing 13 a and the air pressure supply fitting 14 at the upper part of the inner cylinder 11. The sealed pneumatic seal is screwed and sealed by winding a seal tape with a flat packing 13a at the threaded portion of the ball screw 12a and a taper screw for the air pressure supply fitting 14. The air pressure supply fitting 14 incorporates a check valve, and the supplied air pressure is sealed by the check valve.

In FIG. 2, the detail of B section shows a structure for locking the cylinder inner cylinder 11 to the cylinder outer cylinder 10. The lock nut 15 is coupled with a screw 17, and the gripper 16 grips the cylinder inner cylinder 11 and is locked by screwing the lock nut 15 with the handle 6 attached to the handle attachment screw 18. The gripper 16 is divided into six by a conical cylinder, and is gripped by a taper sliding portion with the cylinder outer cylinder 10 to lock the cylinder inner cylinder.

In FIG. 2, the detail of C section shows the sealing structure with U packing 19 so that the sliding part of cylinder outer cylinder 10 and cylinder inner cylinder 11 does not leak air pressure. The bush 20 transmits the force from the U packing 19 and the cylinder inner cylinder 11 to the cylinder outer cylinder 10.

It is the front view, side view, and top view of the state where the operator sat down on the light work cylinder seat of the Example of this invention. It is a pneumatic enclosure cylinder sectional view of the embodiment of the present invention and a sectional detail view of each part of A, B, C.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1a Cylinder 10 Cylinder outer cylinder 1b Cylinder 11 Cylinder inner cylinder 2 Safety belt with bracket 12a Ball screw 3a Safety shoe holder 12b Ball screw 3b Safety shoe holder 13a Flat packing 4 Guide ring 13b Flat packing 5a Ball pad 14 Air pressure supply bracket 5b Ball pad 15 Lock nut 6 Handle 16 Gripper 7 Handle 17 Screw 8 Safety shoes 18 Handle mounting screw
19 U packing
20 bush
21 volts
22 Rubber buffer

Claims (1)

Light work cylinder stool constructed by attaching the lower side of two pneumatically sealed cylinders to safety shoe holders and the upper side to the end face of a safety band with brackets used as a stool.

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