KR20030091614A - hair of revolution a board sitting - Google Patents

Abstract

PURPOSE: A backrest chair with a rotatable seat panel is provided to enable the user to conveniently change his/her sitting orientation as necessary by rotating only the seat panel, resulting in maximization in use convenience and utility thereof. CONSTITUTION: The backrest chair comprises a seat panel frame(100) integrally formed with legs(110) and a backrest(120), a fixed seat panel(200) coupled to the upper portion of the seat panel frame, and a rotatable seat panel(200a) installed to the center portion of the fixed seat panel by interposing a center shaft rod in order to allow the user to rotate it in his/her set posture.

Description

Chair of revolution a board sitting

The present invention relates to a seat-swivel backrest chair in a swivel chair without a chair leg.

Thus, the swivel chairs constituting the fixed seat and the rotating seat without wheels on the chair legs are mainly used in restaurants, such as meeting rooms where people sit at the same time, and can also be used in children's study rooms.

In recent years, as an example of a swivel chair of a rotary seat type without wheels on a chair leg, an insertion hole 3 is formed in the center of the upper plate 2 of the plastic chair body 1 without a back, and the upper plate is formed in the upper plate. There is also disclosed a swivel chair without a back as a plastic swivel chair (registered utility model No. 20-2002-0275560) in which a seat plate 9 is formed by installing a seat plate 9 with a downwardly inserted insertion tube 6 therein. In addition, as a backrest, a magnet is mounted on a rotating disk cushion (magnetic floating) of a synthetic resin, and a rotating disk plastic swivel chair and a rotating disk system that contain a magnetic field in which the rotating disk cushion and the backrest are integrated. -0002741) is also disclosed, and a chair-type variable pallet equipped with a backrest-integrated pallet that is comfortable and comfortable for the seated occupant by installing a seat 5 rotatably via a bearing 2 on the upper part of the chair support 1 Also disclosed is a chair provided (Patent Publication No. 10-1998-0008108), and a chair back support member 100 for supporting the user's back and the chair back member 100, the first rotation that can be rotated sitting A second rotating member 300 that is attached to a member 200 and a lower end of the first rotating member 200 to support the first rotating member 200 when the first rotating member 200 rotates, At the lower end of the second rotating member 300 A first load support member 400 detachably attached to support a load of the user, and a second load support member 500 detachably attached to the first load support member 400 to support the load of the user. The rotatable chair (Registration Utility Model No. 20-2000-0195510), which is composed of an opening, is formed, and an annular portion 24 protruding upward is formed in the center of the seat plate 22, and a through hole (in the center thereof) is formed. 26, an annular groove 34 is formed in the center of the support plate 32, a rectangular hole 36 is formed in the center thereof, and a thrust bearing is formed between the annular portion 24 and the annular groove 34. (38) and the rotating device of the chair in which the backrest and the base plate are rotated by a variant by inserting the coupling bolt 40 into the through-hole 26 to fasten the coupling nut 46 (Registration Utility Model No. 20-2001). -0243554).

Such a conventional seat chair is also configured to form a rotating hole in the seat frame having a leg without wheels, and to combine the rotary seat with the shaft to be rotated in a sitting position on the rotary seat, but such a seat rotary chair When the seat is rotated, the backrest is rotated together, so many people eat at restaurants, etc. Even if the customers sit on the chair in random order or stand up, the seat of the chair is rotated while the backrest is rotated together. The chair's backrest is inconvenient, and even after standing up from the chair, the chair's backrest is placed in a disordered manner, which is a tiring effort, especially when using a swivel chair with legs that a child uses. Severe play with sitting posture is caused by the inclination of the back Will offer becomes the cause of the accident, because children who do not have casters are placed in a rotating stalls rotary recliner of the present invention are useful only rotating stalls safely.

The present invention is to solve the problems of the conventional swivel chair as described above and to implement the present invention, having a wheel-less legs and backrest of the chair and form a seat frame frame as a whole and a seat plate seated on the seat frame fixed seat Composed of a rotating seat and only the rotating seat is rotated so that the person sitting next to the chair or stand up to the inconvenience to sit and rotate the rotating seat in a sitting position to perform the work quickly, workability is higher, even more rotating seat It is to provide a seat revolving backrest chair to relieve the body fatigue accumulated by a simple upper body movement while rotating.

In order to achieve the object of the present invention, the seat back frame is integrally composed of a wheelless chair leg and a backrest, and the backrest chair is rotated by a central shaft at the center of the fixed seat and the fixed seat plate on the upper part of the seat frame. As it is configured, the seat plate revolving backrest chair is rotated only by the rotary seat that is rotated by the central weight bar in a position sitting on the backrest chair.

Hereinafter, the characteristic configuration of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a seat plate rotary backrest chair embodying the present invention

Figure 2 is a cross-sectional view of the seat plate rotary backrest embodying the present invention

Figure 3 is a perspective view of another seat plate rotary backrest chair embodying the present invention

Explanation of symbols on the main parts of the drawing

100; Seat frame 110; Chair leg

120; Back 130; A rod

140; Washer 150; nut

200; Fixed seat 200a; swivel seat

210; Central shaft 220; Ball bearing

300; armrest

The present invention consists of a seat plate installed in the upper part of the seat frame frame is composed of a wheelless chair legs and the backrest is composed of a fixed seat plate and a rotating seat rotated by a central shaft in the center of the fixed seat plate and sitting on the backrest chair when necessary It is located in a swivel backrest chair that can rotate only the swivel seat in posture.

1 is a perspective view of a seat plate rotary backrest chair embodying the present invention, the fixed seat plate 200 is fixed to the upper surface of the seat plate frame 100 integrally constituting the wheel-less chair leg 110 and the backrest 120 and Since the rotating seat 200a is rotated by the central shaft bar in the center thereof so that only the rotating seat 200a is rotated, only the rotating seat can be rotated when necessary in the position of the chair, and the direction can be arbitrarily changed to improve workability. In addition, it is convenient to sit and get up on the chair, and it is in a seat-swivel backrest chair that can be relieved of fatigue by simple exercise in a sitting position.

Figure 2 is a cross-sectional view of the back of the chair embodying the present invention, the fixed seat 200 in the upper portion of the seat frame frame 100 integrally constitutes a chair leg 110 and the backrest 120 as described above ) But install the rotary seat (200a) in the center of the fixed seat,

At this time, the shaft seat hole 130 is laid in the center of the seat frame 100, and the rotating seat is rotated around the center shaft rod by inserting the central shaft rod 210 formed in the lower portion of the rotating seat 200a. Install it.

In addition, a thrust rod or ball bearing 220 is installed at a portion where the shaft rod hole 130 installed in the center of the seat frame frame and the central shaft rod 210 formed at the lower portion of the rotary seat plate 200a come in contact with each other. Configure the rotation smoothly.

Then, insert the central shaft rod 210 formed in the rotary seat plate 200a in the shaft rod hole 130 installed in the seat plate frame as described above, and tighten the washer 140 and the nut 150 to the central shaft rod 210 to rotate. Install the seat firmly.

In this way, by installing the fixed seat 200 and the rotary seat 200a on the seat frame 100, the chair leg 110 and the backrest 120 is integrally formed so that only the rotary seat 200a is rotated, including a conference room chair Even if a number of people sit in a row, such as dining room chair seat 120 is fixed to the rotating seat (200a) is fixed only when sitting on a chair or when the chair does not cause inconvenience to the side seat and the previous seat and backrest Is rotated at the same time to solve the problem of inconvenience to the next person.

In addition, the seat revolving backrest chair of the present invention can change the posture of sitting only the rotating seat as needed in a sitting posture, which increases worker's workability, is convenient to sit and get up, and performs a simple exercise with a posture sitting on a chair. You will also be able to relieve fatigue.

In particular, as the child uses the seat plate rotary backrest chair of the present invention, it prevents the safety accident that occurs when using the rotary chair before.

3 is an exemplary cross-sectional view of another backrest chair in which only the seat plate is rotated by implementing the present invention, and is fixed to an upper portion of the seat plate frame 100 integrally constituting the wheelless chair leg 110 and the backrest 120. The fixed seat 200 and the rotating seat 200a which is rotated by the central shaft at the center of the fixed seat are installed, and only the rotating seat is installed so as to be rotated similarly to the seat revolving backrest chair as shown in FIGS. 1 and 2. Just armrest 300 is installed on the seat revolving backrest chair.

Thus, the seat back rotary back chair with armrest 300 on the backrest chair also has the same effect as the seat back rotary back chair of FIG. 2 above, and in particular, the armrest when exercising by rotating the rotary seat in a position seated on a chair There are convenient points in the upper body movement to hold the upper body with both hands, and sitting and getting up is more convenient,

The present invention is to build a fixed seat and a rotating seat that is rotated at the center of the fixed seat plate is fixed to the upper part of the seat frame frame is integrally composed of a chair leg and a back without wheels, so that only the rotating seat is rotated, if necessary in a sitting position It is possible to work by changing the sitting posture by rotating only the rotating seat at random. Therefore, the workability is increased and the sitting and rising are convenient. Especially, the upper body exercise is performed in the sitting posture to get the effect of relieving fatigue. It is a useful invention that can prevent safety accidents that can occur in the chair.

Claims (3)

The seat plate frame 100 is integrally formed with the wheel and the backrest, the fixed seat plate 200 fixed to the upper portion of the seat frame frame, and the central shaft to rotate in a sitting position in the center of the fixed seat plate Swivel seat backrest chair characterized in that the coupling of the rotating seat (200a) to be installed. According to claim 1, the armrest 300, the wheelless chair leg 110 and the backrest 120 is fixed to the seat plate frame 100 is formed integrally with the fixed seat plate 200, the central portion of the seat plate frame A shaft rod hole 130 is formed in the center shaft rod 210 of the rotary seat plate 200a which is rotated at the center of the fixed seat plate fixed to the upper surface of the spindle hole and washer 140 and nut 150 Swivel backrest chair characterized in that it is configured by tightening. According to claim 1 or claim 2, Seat plate rotary backrest chair characterized in that the armrest 300 is formed between the seat plate frame and the backrest of the backrest chair having a fixed seat plate 200 and the rotary seat plate (200a).