KR200449787Y1 - Seat plate rotator of reversible grandstand chair - Google Patents

Abstract

The present invention relates to a reversible grandstand chair, and in particular, assembling the fixing parts on both sides around the reinforcement plate disposed inside the side frame of the chair, the rotating plate is assembled to the seat plate, the boss member and the rotating part of the fixing part It is easy to assemble the rotating shaft, and it is easy to cut the side frame by the circular fixing part. When the assembly of the fixing part and the rotating part is completed, the rotating shaft of the rotating part is not exposed by the rotating ring, which can enhance aesthetics further. There is a characteristic.

Bleachers, backrests, seats, side frames, fixed parts, swivel parts

Description

Seat rotation of reversible grandstand chair {A seat equipment a folding chair}

The present invention relates to a reversible grandstand chair, and more particularly, a circular fixing unit disposed inside an armrest side plate of a grandstand chair, and a seat rotating device of a reversible grandstand chair having a circular rotating unit having a rotating shaft in a seat plate It is about.

In general, a number of grandstand chairs are connected to a training room, lecture hall, theater, etc. according to the capacity of a large number of people, and a rotating device is installed between the armrest side plate and the seat plate used for the grandstand chair to reverse the seat plate.
In the rotating device applied to the conventional grandstand chair, as shown in FIGS. 1 to 3, the reinforcement plate 102 is embedded in the side frame 101 to fix the folding chair 100 to the ground, and the reinforcement plate 102 is provided. Lower cap 103 protruding from the () is fixed to the reinforcement plate by the bolt 104, the stopper 103a (103b) is formed on both sides of the lower cap, the seating groove (103c) in the center of the lower cap 103 Is formed, the upper cap 105 is coupled to the lower cap is coupled to the lower cap and interference fit.
The seating plate 106 applied to the folding chair 100 has a fixing member 107 is embedded, the rotating shaft 107a protruding from the fixing member is seated in the seating groove 103c, the angle adjustment formed at the end of the rotating shaft 107a The bar 107b is interposed between the stoppers 103a and 103b on both sides.
Looking at the rotational action of the conventional seat plate configured as described above when the inverted seat plate 106 is horizontally inverted, as shown in FIG. The seat 106 is kept horizontal.
However, in assembling the conventional seat plate rotating body constructed and operated as described above, the upper and lower caps 105 and 103 fixed to the side frame 101 are almost elliptical, which is very inconvenient to cut. Cap 105 and the lower cap 103 is a hassle to manufacture separately, there is an inconvenience that must be combined with two bolts 104 when attaching the lower cap 105 to the reinforcing plate 102, In assembling the rotary shaft 107a and the angle cutting bar 107b on the seat plate 106 to the lower cap 103, the rotary shaft should be moved upwards and then seated vertically in the axial groove 103b. It is inconvenient to lift the whole seat plate 106 having.

The present invention has been devised to solve the problems as in the prior art, for the purpose, the fixing part fixed in the side frame is not divided into a plurality of upper and lower members to form an integrated unit to increase the efficiency of mold production, and fixed The additional circular shape makes it easy to cut the side frame, and when joining a plurality of fixing parts on both sides of the reinforcing plate, it forms a bolt hole in which the fixing part and the fixing part communicate with each other so that the two bolts can be assembled and assembled to the seat plate. It is an object of the present invention to provide that the seat plate can be assembled in a horizontal state when it is combined with the fixed part.

The present invention for achieving the above object is the present invention is the grandstand chair 10 is divided into a backrest 20 and the seat plate 30 and the armrest side plate 40, the armrest side plate 40 inside the reinforcement plate 50 The rotating part 70 which is inherent, and has the sealing member 71 and the exposure member 72 exposed from the inside of the said seat plate 30, and the rotating shaft 72b which protruded in the center of the said exposure member 72. In the grandstand chair having a bolt hole (71a) (71b) that can be coupled to the rotating plate 70 to the seat plate (40) to the sealing member (71),
A fixing part 60 fixed to both side surfaces of the reinforcing plate 50 with a bolt 80 and a nut 90;
A plurality of stoppers 62a and 62b formed at predetermined intervals about the boss 64 protruding from the center of the fixing part 60;
On the left and right sides of the stoppers 62a and 62b, shock absorbing members 65 absorb shocks,
The exposure member 72 has a rotary ring frame 72a that can accommodate the outer circumferential surface of the fixing part 60,
A plurality of braking protrusions 72c and 72d formed at predetermined intervals about the rotating shaft 72b are formed to achieve a seat plate rotating device of the inverted grandstand chair.

As described above, the present invention improves the efficiency of mold production by forming a fixed part fixed inside the side frame without being divided into a plurality of upper and lower members. When joining a plurality of fixing parts on both sides of the reinforcing plate to form a bolt hole communicating the fixing part and the fixing part so that it can be assembled by two bolts, and when the rotating part assembled on the seat plate is combined with the fixing part This has the effect of making it easy to assemble in a horizontal state, in particular, when the assembly of the rotating body is complete, there is an effect that the aesthetics of the rotating part is not exposed by the cap to further enhance aesthetics.

Hereinafter, described in detail with reference to the accompanying drawings.
Figure 4 is a perspective view of a grandstand chair according to the present invention, Figure 5 is an exploded perspective view of the main body of the present invention, Figure 6 is a side cross-sectional view of the rotating body of the present invention, Figure 7 is a rotating body of the present invention This is a side view of the working state.
The grandstand chair 10 is divided into a backrest 20, a seat plate 30, and an armrest side plate 40. A reinforcement plate 50 is embedded in the armrest side plate 40, and inside the seat plate 30. A rotating part 70 having an inherent sealing member 71 and an exposure member 72 exposed from the seat plate, a rotating shaft 72b protruding from the center of the exposure member 72, and a seat plate on the sealing member 71. In the grandstand chair having a bolt hole (71a) (71b) that can be coupled to the rotating portion 70 to 40,
A fixing part 60 fixed to both side surfaces of the reinforcing plate 50 with a bolt 80 and a nut 90;
A plurality of stoppers 62a and 62b formed at predetermined intervals about the boss 64 protruding from the center of the fixing part 60;
On the left and right sides of the stoppers 62a and 62b, shock absorbing members 65 absorb shocks,
The exposure member 72 has a rotary ring frame 72a that can accommodate the outer circumferential surface of the fixing part 60,
A plurality of braking protrusions 72c and 72d formed at predetermined intervals about the rotating shaft 72b are formed to achieve a seat plate rotating device of the inverted grandstand chair.
The operation of the present invention configured as described above is as follows.

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       The center of gravity of the seat plate 30 used for the grandstand chair 10 is formed at the rear, and the seat plate 30 is always standing vertically until the user sits on the seat plate 30.

       As shown in FIG. 7, the rotation parts 70 of the brake plate 72c and 72d in the state where the seat plate 30 is vertical are positioned on the vertical surfaces a of the stoppers 62a and 62b. .

       When the user sits on the seat plate 30 in the above state, the rotating shaft 72b rotates about the shaft hole 63 and also rotates the brake protrusions 72c and 72d while the horizontal surfaces of the stoppers 62a and 62b. In contact with (b), the rotating unit 70 is braked, and the seat plate 30 changes direction from vertical to horizontal.

       When the brake protrusions 72c and 72d are in contact with the stoppers 62a and 62b, the shock absorbing member 65 is attached to minimize the friction sound.

       On the contrary, when the seat plate 30 is erected from the horizontal to the vertical, as described above, the seat plate 30 has a center of gravity at the rear, so that the seat plate 30 is automatically erected, and the rotating shaft 72b is rotated about the shaft hole 63. At the same time as the battleship, the braking protrusions 72c and 72d rotate to contact the vertical surfaces a of the stoppers 62a and 62b.

       1 is a perspective view of a conventional grandstand chair.

       Figure 2 is an exploded perspective view of a rotating body coupled to the conventional armrest side plate and the seat plate.

       3 is a state diagram of a conventional rotating body.

       4 is a perspective view of a grandstand chair according to the present invention.

       5 is an exploded perspective view of a rotating body which is a main part of the present invention;

       Figure 6 is a side cross-sectional view of the rotating body of the present invention.

       Figure 7 is a side view of the working state of the rotating body of the present invention.

* Description of the symbols for the main parts of the drawings *

         10: grandstand chair 20: backrest

         30: seat 40: side frame

         50: reinforcement plate 60: fixing part

         64: boss member 62a, 62b: stopper

         65: shock absorbing member 70: rotating part

         71: sealing member 71a, 71b: bolt hole

  72: exposed member 72a: rotary frame 72b: rotary shaft 72c, 72d: braking protrusion 80: bolt 90: nut

Claims (1)

The grandstand chair 10 is divided into a backrest 20, a seat plate 30, and an armrest side plate 40. A reinforcement plate 50 is embedded in the armrest side plate 40, and inside the seat plate 30. A rotating part 70 having an inherent sealing member 71 and an exposure member 72 exposed from the seat plate, a rotating shaft 72b protruding from the center of the exposure member 72, and a seat plate on the sealing member 71. In the grandstand chair having a bolt hole (71a) (71b) that can be coupled to the rotating portion 70 to 40, A fixing part 60 fixed to both side surfaces of the reinforcing plate 50 with a bolt 80 and a nut 90; A plurality of stoppers 62a and 62b formed at predetermined intervals about the boss 64 protruding from the center of the fixing part 60; On the left and right sides of the stoppers 62a and 62b, shock absorbing members 65 absorb shocks, The exposure member 72 has a rotary ring frame 72a that can accommodate the outer circumferential surface of the fixing part 60, And a plurality of brake protrusions (72c) (72d) formed at a predetermined interval about the rotation axis (72b) is a seat plate rotating device of the reversible grandstand chair.

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