JP2001112579A - Chair for sitting square - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chair for sitting square capable of simultaneously and rapidly adjusting the angle (inclined angle) and height of a seat plate and giving no load to the hips even when one sits down for a long time. SOLUTION: Connection bolts are provided respectively in the seat plate and base plate of a chair body in which a flat plate is bent and the seat plate is formed at the upper part and the base plate is formed at, the lower part from a sheet of plate. The bolts are screwed in a turnbuckle. The inclination and height of the seat plate is changed by rotating the turnbuckle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sitting chair used in places where people who are not good at sitting or who have poor knees value courtesy.

[0002]

2. Description of the Related Art As an example of conventional technology, Japanese Utility Model Application Laid-Open No.
No. 10256 is a straight seat chair comprising an upper seat plate, a lower substrate, and a connecting device for detachably connecting the seat plate and the substrate, wherein the connecting device is a high seat. There is disclosed a straight seat chair provided with a height adjustment mechanism.

However, in the above-described embodiment, the height is simply adjusted. In other words, when actually sitting straight, the knees are bent in a C-shape, but at this time, the buttocks are positioned obliquely, and even if the height of the seat plate on the horizontal is simply adjusted, the buttocks are burdened. And height adjustment takes time. In addition, since the seat plate and the substrate are separate bodies, it takes time and effort to assemble the product, and there is a possibility that each of them is lost, so that the structure is easily broken.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above problems, and has as its object to simultaneously and quickly adjust the angle (inclination angle) and height of a seat plate. Another object of the present invention is to provide a sitting chair which does not burden the buttocks even when sitting for a long time.

[0005]

Means for Solving the Problems As means for solving the problems, a flat plate is bent, a seat plate is formed on an upper part, and a base is formed by a single plate on a lower part. A connecting bolt is provided, and a turnbuckle is screwed into the connecting bolt, and the tilt angle and height of the seat plate can be changed by rotating the turnbuckle. One connecting bolt is a right-handed screw, and the other connecting bolt is a left-handed screw. Further, at least one of the connection bolts is provided so as to swing freely. Further, a through hole is formed in the seat plate at a position corresponding to the ischium of the buttocks when sitting.

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is a sitting chair. 2 is
A flat plate made of stainless steel (which may be made of iron or aluminum) is cut into a roughly gourd shape, bent into a substantially U-shape near the center, and a substantially square-shaped seat plate 2a is provided at the upper part, and a substantially flat disk is provided at the lower part. A base 2b is formed, and through holes 2a1 and 2a1 are formed at positions corresponding to the hip bones of the hip when sitting on the bottom plate 2a, and fixing grooves 2a2 for fixing connecting bolts to be described later.
Is a chair body in which a fixing groove 2b2 is also provided on a base 2b, and a cushion 2c is provided on an upper surface of a seat plate 2a. In addition, you may form the shape of the seat plate 2a in a wavy shape according to a buttocks. In addition, it is safe (protection) on the outer circumference of the chair body 2.
May be provided with a vinyl edging. 3a
3b is fixed to the fixing grooves 2a2 and 2b2 (welding, etc.)
One is a right-handed screw and the other is a left-handed screw. Reference numeral 4 denotes a turnbuckle into which the connection bolts 3a and 3b are screwed, and the connection bolts 3a and 3b are moved up and down by turning left or right, and the height and angle (inclination angle) of the seat plate 2a. Is to adjust. In addition,
The female screw portions 4a and 4b of the turn buckle 4 are slightly over-tapped with respect to the connection bolts 3a and 3b, and the turn buckle 4 and the connection bolts 3a and 3b are formed.
Can move up and down even if the shaft center is slightly worn. Also,
When the turnbuckle 4 is rotated to some extent, the female screw portions 4a and 4b and the connection bolts 3a and 3b contact more than necessary and become unrotatable, at which point the height adjustment can be automatically terminated. .

[0007] An example of the use of the above sitting chair 1 will be described below. For example, in the case of using for a memorial service, the sitting chair 1 is placed on the tatami mat T, and the knees are bent and seated on the cushion 2c. At this time, the hip bone D1 of the buttocks D is inserted into the through hole 2a1 of the seat plate 2a.
And the buttocks D (sciaticus D1) do not hurt even when sitting for a long time. Further, when the height and angle (inclination angle) of the seat plate 2a do not fit properly, the turnbuckle 4 is rotated to move the connecting bolts 3a and 3b up and down so that they can be set at an appropriate position.

Next, another embodiment will be described. This sitting chair 21 is provided with a support frame 22a2 for supporting and fixing a connection bolt 23a having a head 23a1 formed in a ball shape on the bottom surface of a seat plate 22a of a chair body 22, and the connection bolt 23a can swing freely. In this case, the turnbuckle 24 can be rotated to increase the adjustment length (the angle and height of the bottom plate 22).

In each of the above embodiments, the size and shape of the seat plate and the base may be set as required, and the diameters and lengths of the connecting bolt and the turnbuckle may be freely set as required. Good. The method of fixing the connecting bolt is not limited to welding, but may be another method such as fixing with a nut.

[0010]

According to the present invention, 1), the angle (inclination angle) and height of the seat plate can be simultaneously adjusted by rotating the seat plate with a turnbuckle.
The best position can be set. 2) Since the seat plate can be formed obliquely, it is hard to be tired even when sitting for a long time. 3) By forming a through hole in the seat plate, it does not compress the hip bone of the buttocks and does not hurt even when sitting for a long time. 4) By allowing the connecting bolt to swing, there is an effect that the angle (inclination angle) and height of the seat plate can be largely adjusted.

[Brief description of the drawings]

FIG. 1 is a perspective view of a sitting chair showing a first embodiment of the present invention.

FIG. 2 is a partial longitudinal front view of the sitting chair showing the first embodiment of the present invention.

FIG. 3 is a view showing a use state of a sitting chair according to the first embodiment of the present invention.

FIG. 4 is a partial longitudinal front view of a main part of a sitting chair according to a second embodiment of the present invention.

[Explanation of symbols]

 1 ---- Seat chair 2-- Chair body 2a- Seat plate 2a1- Through hole 2b- Base 2b2- Fixing groove 2c- Cushion 3a- Connection bolt 3b- Connection bolt 4-- Turnbuckle

Claims (4)

[Claims] A flat plate is bent, a seat plate is provided on an upper portion, and a connecting bolt is provided on a seat plate and a base of a chair body in which a base is formed of a single plate on a lower portion. A seat chair characterized in that a buckle is screwed, and the turn buckle is rotated to change a tilt angle and a height of the seat plate. 2. The sitting chair according to claim 1, wherein one of the connecting bolts is a right-hand thread and the other connecting bolt is a left-hand thread. 3. The sitting chair according to claim 1, wherein at least one of the connecting bolts is swingably provided. 4. The sitting chair according to claim 1, wherein a through hole is formed in the seat plate at a position corresponding to the ischium of the buttocks when sitting.