JP3161509U - Working chair - Google Patents

Abstract

Provided is a working chair that can be adjusted to the height and inclination angle of a seating surface suitable for an operator and reduce fatigue. SOLUTION: Two front legs reinforced by upper, middle and lower stays, and two rear legs having a lower height than the front legs and reinforced by stays, are provided on the upper stay of the front legs. The opening / closing angle is fixed by a connecting stay pivotally attached to a boss projectingly attached to the lower middle part of the front leg and the rear leg, and being inserted in an openable and closable manner by the inserted connecting tool. Bearings of rotating bolts are inserted into the upper stage stay and middle stage of the front leg, and a retaining ring is inserted into the lower end of the rotating bolt. There is a seat surface at the upper part of the seat mounting bracket, and a long nut that is screwed to the rotating bolt is welded to the rear of the seat mounting bracket. [Selection] Figure 1

Description

  The present invention relates to a standing chair (working chair) that avoids danger and does not get tired when working with a middle waist such as operating a forging machine.

  When operating a forging machine, a machine tool, a welding machine, etc., it is sometimes dangerous to sit in a normal chair. This is because you cannot move or evacuate your body quickly in an emergency. Therefore, it is forced to work for a long time in the middle waist state, and it is accompanied by fatigue. In addition, when stepping on a petal, one foot is temporarily in a normal state, increasing the risk. For this reason, mid-high chairs are commercially available, but none are suitable for the operator. Nor can she evacuate quickly in an emergency.

  The present invention has a function of finely adjusting the waist height of each worker, and can tilt the seating surface at an angle that does not cause fatigue. There is no such working chair.

  The present invention makes it possible to finely adjust the height of the seating surface using a screw, and to add the function of adjusting the angle of the seating surface that is optimal for the operator by making the seating surface freely tiltable. It is an object of the present invention to provide a working chair that reduces the above-mentioned problem.

  In order to solve the above object, the height of the seating surface suitable for the worker is an important factor. In order to adjust the height of the seating surface, for example, there is a method of adjusting by inserting pins into a sliding column every several cm. However, it has been found that the height is slightly uncomfortable depending on the height of the worker, which leads to fatigue. Therefore, it is important that the height of the seating surface can be adjusted freely. For this reason, a long rotating bolt and nut are used, and the seating surface can be raised and lowered steplessly from the floor to 550 mm to 880 mm.

  Moreover, when the angle of the seating surface is horizontal, there is a sense of incongruity in the sitting comfort, which leads to fatigue. A working chair that can be adjusted from a 24 degree inclination to a horizontal level using a screw from the back of the seating surface and that does not feel fatigue even after long-term use was completed.

    After the work using the working chair was completed, the main body and the seating surface were both folded and stored.

    As described above, the present invention is an invention of an excellent working chair that does not give a sense of incongruity or fatigue to an operator who uses it ergonomically.

    FIG. 1 is an explanatory diagram of an embodiment of a working chair according to the present invention, and FIG. 2 is an explanatory diagram of an embodiment for adjusting a seat surface inclination. FIG. 3 is an explanatory view of an embodiment of the stored state of the working chair.

    1 shows that the working chair-main body front leg 9 and the working chair-main body rear leg 10 are freely inserted in the upper part of the working chair-main body front leg 9, and are opened and closed by the lower step-11. The angle is fixed.

    The rotating handle 1 is welded to the upper part of the rotating bolt 3, and the bearing attached to the upper stage of the working chair main body front leg 9 is passed through. The long nut 2 is welded to the seat mounting bracket 4 and the member is screwed into the rotating bolt 3 while rotating the rotary handle 1. At this time, the long nut 2 is welded to the seat mounting bracket 4, and the member is prevented from rotating by the leg frame of the working chair main body front leg 9, the member moves up and down, and the seat surface 6 As an example, the position of can be adjusted to 550 mm to 880 mm from the floor without permission.

  The tip of the rotating bolt 3 is inserted into a bearing attached to a lower stage of the working chair main body front leg 9, and the rotating handle 1 can freely rotate.

    The seat surface 6 is inclined 24 degrees from the horizontal level with the rotary shaft pin 5 as a core.

FIG. 2 is an explanatory view of an embodiment for adjusting the seat surface inclination. A seat surface inclination adjusting nut 8 at the tip of the seat surface mounting bracket 4 is welded. When the seat surface tilt adjusting handle 7 to which the bolt is welded is rotated, the seat surface 6 is pushed up from the back surface. Thereby, it becomes possible to adjust from 24 degrees of the front descending of the seat surface 6 to a horizontal level of 0 degrees without a step.
This makes it possible to easily perform an operation with the body's center of gravity slightly tilted and a position of sitting or leaning a little while working.

  By lifting the stage 11, the working chair main body front leg 9, the working chair main body rear leg 10 and the seat surface 6 can be folded and stored compactly as shown in FIG.

  As described above, according to the present invention, the seating surface can be adjusted to the height of the continuously variable floor within a necessary range. More than half of the body weight is supported by a working chair so that your feet do not get tired and you can quickly move to the next while leaning against the tilted back. It is useful not only for work, but also for surgeons who have to operate for a long time in the middle, cooks who also have to cook in the middle, and those who have to accept in front of the desk at Setaka in the exhibition hall.

      It is explanatory drawing of one Example of the working chair concerning this invention.       It is explanatory drawing of one Example for the seat surface inclination adjustment of FIG.       It is explanatory drawing of one Example of the accommodation state of a working chair.

DESCRIPTION OF SYMBOLS 1 Rotating handle 2 Long nut 3 Rotating bolt 4 Seat surface mounting bracket 5 Rotating shaft pin 6 Seat surface 7 Seat surface tilt adjusting handle 8 Seat surface tilt adjusting nut 9 Working chair-main body front leg 10 Working chair-main body Rear leg 11

Claims (3)

    A long nut is welded to the mounting frame on the seating surface, and the rotating bolt that is screwed to the nut and the rotating handle that is welded to the rotating bolt are rotated. Working chair suitable for middle and lower back work, characterized in that the surface can be finely adjusted up and down     The seat surface is inclined with the rotary shaft pin as a core. A nut is provided at the tip of the seat mounting bracket, and the seat is pushed up by rotating the handle via a screw welded to the handle. This makes it possible to adjust the inclination of the seating surface from several tens of degrees to horizontal.     When not in use, a working chair that can be stored compactly by folding the body seat together.

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