KR20100094714A - Auditorium chair back stopper structure and auditorium chair utilizing the same - Google Patents

Abstract

PURPOSE: A back support stopper structure of a seat and the seat having the same are provided to properly adjust the tilt angle. CONSTITUTION: A back support stopper structure of a seat comprises: a support frame formed on a seat to be placed at the lower side of a lift bracket(20); a stopper(40) which supports the lift bracket in case of tilting the back support; and a lift control member which is able to regulate height of the stopper.

Description

Auditorium chair back stopper structure and auditorium chair utilizing the same}

The present invention relates to a backrest stopper structure of a grandstand chair and a grandstand chair having the same, and more particularly, to a backrest stopper structure and a grandstand chair of a grandstand chair capable of appropriately adjusting an angle at which the backrest of the grandstand chair is leaned back. .

In general, a grandstand is provided in a theater or a theater, and a plurality of chairs for viewing are arranged side by side on the floor of the terrace. The chair for viewing has a structure having a backrest, a pair of legs provided on both sides of the backrest, and a seating seat on which both sides are coupled to the legs so that the buttocks of the spectators are placed. The chair for viewing has such a structure that the chair legs are fixed to the floor of the stepped grandstand by anchoring bolts and nuts, etc., and the seated seat is seated on the seating seat, and then enjoys the viewing.

On the other hand, the viewing hall has a structure that gradually increases from the front row to the rear row based on the stage or screen, and the chairs installed in the viewing hall gradually increase in height from the front row to the rear row.

Therefore, the angle of the backrest of the chair back installed in the first to second rows relative to the screen in the theater is relatively large, and the backrest of the chair back near the rear row is controlled relatively less. The chair back in the vicinity of the middle needs to be adjusted to a moderate angle with the angle of recline.

However, in the related art, it is not provided with a structure for differently adjusting the angle of the backrest according to the seating position of the viewing hall, resulting in inconvenience in viewing. The viewing time of a movie or theater lasts a relatively long time, and the seat back angle of the chair cannot be adjusted to the angle desired by the viewer, which may cause discomfort such as a sore throat or shoulder pain during long hours. It is. Therefore, there is an urgent need for a means for properly adjusting the angle of the backrest depending on the chair installation position in the grandstand.

The present invention has been made to solve the above problems, an object of the present invention is to adjust the angle of the backrest back appropriately according to the installation position of the grandstand chair to stop the backrest of the grandstand chair to achieve a comfortable viewing It is to provide a structure and a grandstand chair using the same.

According to the present invention for solving the above problems, the support frame provided on the seating seat and the support so that the backrest provided on the seat back seat seat of the chair is located on the lower side of the lifting bracket which is rotated down together with the back, Backrest stopper of the grandstand chair, characterized in that it comprises a stopper which is installed to be elevated on the frame and supports the elevating bracket when the backrest is backed up, and an elevating control member for adjusting the height of the stopper on the support frame. A structure is provided.

In addition, according to the present invention, the seating seat is provided with a fixing bracket on the bottom, the legs disposed on both sides of the seating seat, the front end portion is coupled to the fixing bracket via a hinge portion in the upright direction behind the seating sheet Lifting bracket coupled to the backrest is disposed, the support frame provided on the seating seat so as to be located on the lower side of the lifting bracket which is lowered and rotated together when the backrest provided behind the seat is seated back, and the lifting frame And a stopper for supporting the elevating bracket when the backrest is squeezed back, and an elevating bolt coupled to the supporting frame so as to be lifted and lowered to adjust the height of the stopper according to the operation. A grandstand chair is provided.

In the present invention, in the case of a chair installed at a relatively front row position in a viewing hall, the height of the backrest is lowered by using the stopper and the lifting bolt, which are the main parts, to increase the angle of backrest, and the chair is installed at a relatively rear row position. In this case, the height of the stopper and the lifting bolt, which are the main parts, are relatively increased, so that the angle of the backrest can be relatively small. According to the installation position of the chair, the viewer can enjoy the viewing by tilting the back in a comfortable position. For example, it is possible to block the phenomenon that the viewer feels tired due to the relatively long time viewing.

In addition, the stopper, which is a main part of the present invention, includes a urethane cushioning material, and the backrest is backed up to absorb the impact by the cushioning material at the moment when the lifting bracket hits the stopper, so that noise is generated when the backrest is squeezed. When the backrest is restored, the lifting bracket connected to the backrest comes into contact with the cushioning material made of urethane, which is separately provided on the seating seat, so that the shock is absorbed. It is effective in blocking.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Figure 1 is an exploded perspective view showing the main part of the present invention from the upper side, Figure 2 is an exploded perspective view showing the main part of the present invention from the lower side, Figure 3 is a perspective view showing the assembled state of Figure 1, Figure 4 is an assembly of Figure 2 5 is a rear view of a grandstand chair in which main parts of the present invention are installed, FIG. 6 is a side view showing a partial cutaway structure of the main parts of the present invention, and FIG. 7 is a backrest shown in FIG. 8 and 9 are side cross-sectional views showing an enlarged state of adjusting the height of the stopper, which is a main part of the present invention. Referring to this, in the present invention, the front end portion is coupled to the seating seat 4 of the chair via the hinge portion 22, and the hinge portion 22 is driven by the force of the backrest 8 behind the seating seat 4 back. The lifting bracket 20 descending from the center, the support frame 30 positioned below the lifting bracket 20, and the heights of the stopper 40 and the stopper 40 provided in the support frame 30. It includes a lifting control member for adjusting the.

The support frame 30 is configured in a shape having a horizontal support part 32 on which a stopper 40 to be described later is supported, and a pair of connection support parts 34 extending in an upward direction at both ends of the horizontal support part 32. do. A pair of connecting support portions 34 of the support frame 30 are coupled to the rear end side of the fixing bracket 10 provided in the seating seat 4. That is, the fixing bracket 10 is fixed to the bottom of the seating seat 4 by a bolt or the like, and a pair of left and right coupling parts 14 extends downward on the rear end side of the fixing bracket 10, and the left and right couplings A bolt hole 14a is formed through the part 14, and the left and right sides of the fixing bracket 10 hold the wrench bolts 2 penetrating through the bolt holes 34a formed in each connection support part 34 of the support frame 30. By fastening to the bolt hole 14a formed in the engaging portion 14, the support frame 30 can be fixed to the rear position of the seating seat 4. In addition, an additional reinforcing rib 36 for strength reinforcement is further provided at a portion between the horizontal support part 32 and the pair of connecting support parts 34.

The stopper 40 has a shape in which a rod-shaped guide 48 is provided at the center of the bottom surface of the stop support 42. At this time, the stop support portion 42 is provided with a rod-shaped guide 48 at the center of the bottom surface, the upper surface is open and the channel member 44 is provided with two hook holes 44a penetrating from the upper surface to the lower surface, and the channel member It is composed of a cushioning material 46 of urethane material coupled to (44). In addition, the buffer member 46 has a substantially rectangular block-shaped coupling block portion 46a fitted to the channel member 44, and an expansion portion 46b extending from the circumference of the coupling block portion 46a to the outer portion. It is composed of shapes. In addition, a hook member 46c fitted to the hook hole 44a of the plurality of channel members 44 (two in the present invention) is provided on the bottom of the coupling block portion 46a. Then, the lower end of the hook member 46c is provided with a hook hook portion 46d, which is hooked to the circumferential wall at the lower end side of the hook hole 44a of the channel member 44, and the hook hook portion 46d has a conical taper. A part 46e is provided. In Fig. 2, the bottom part of the buffer member 46 of this structure is shown.

Therefore, as the coupling block portion 46a of the shock absorbing material 46 is fitted to the channel member 44, the hook member 46c is fitted to the hook hole 44a, whereby the shock absorbing material 46 is provided to the channel member 44. And a stopper 40 having a combined shape, and the bush 70 is formed in the lifting hole 32a formed at the center of the horizontal support part 32 of the support frame 30. By coupling through), the stopper 40 can be elevated under the seating seat 4 of the grandstand chair. Specifically, the stopper 40 may be elevated below the lifting bracket 20 coupled to the rear bottom of the seating seat 4.

The elevating adjustment member is to adjust the height of the stopper 40, in the present invention, the elevating adjustment member is coupled to the support frame 30 so as to be lifted and the upper end lifting bolt (supporting the stopper 40) 50). As the lifting bolt 50 is tightened and released, the stopper 40 may be lifted from the support frame 30.

In addition, the rear seat of the seating seat 4 is further provided with a separate cushioning material (80) which is in contact with the upper surface of the lifting bracket 20 when the backrest 8 is returned to its original position. Such a cushioning material 80 is made of a urethane material. In the present invention, the shock absorbing material 80 is provided at the rear end of the fixed bracket 10, and has a structure in which the shock absorbing material 80 is interposed between the lifting bracket 20 and the fixed bracket 10.

According to the present invention of such a configuration, when the seated person sits on the grandstand chair and leans back to the backrest 80, the lifting bracket 20 mounted on the bottom part of the backrest 8 is tilted backwards. The seat back 8 is pivoted down about the hinge 22 of the front end coupled to the seating seat 4 and supported by the stopper 40 supported by the support frame 30 at the rear of the chair to stop. You can maintain the angle.

On the other hand, a fixing bolt 60 is installed on the fixing bracket 10 at the bottom of the seating seat 4, and the first housing 62 is disposed at a lower side of the lifting bracket 20 at the lower circumference of the fixing bolt 60. The lower end of the screw is coupled, the first spring 62 is accommodated in the coil spring 64 is received, the upper end of the coil spring 64 is coupled to the elevating portion to the periphery of the fixing bolt 60 and At the same time, the second housing 66 having the upper end abutting on the bottom surface of the elevating bracket 20 is installed, and the fixing bolt 60 and the first housing are in a state where the back bracket 8 is rolled back and the elevating bracket 20 is lowered. Since the second housing 66 is lowered with respect to 62, and the coil spring 64 is pressed, the elastic restoring force of the coil spring 64 acts on the lifting bracket 20 and the backrest 8 itself. The chair spring is lifted from the backrest 8, the force of the coil spring 64 To the lifting bracket 20 and the back (8) is able to be rotated back to its original position.

At this time, the stopper 40, which is a main part of the present invention, is a lifting control member, that is, as the lifting bolt 50 is screwed and tightened by the stopper 40, the lifting bracket 20 is based on the rod-shaped guide 48. Since it is lifted from the lower side of), the backrest 8 can be comfortably adjusted according to the seat installation position, and this can be used, which constitutes the main feature of the present invention.

As shown in FIGS. 8 to 9, when the upper end of the elevating bolt 50 is released to a relatively low position, the stopper 40 is relatively lowered, and the backrest 8 is placed on the upper surface of the lowered stopper 40. Since the bottom surface of the elevating bracket 20 attached to the back) is supported, it is possible to increase the angle of the backrest 8 to be relatively increased. In the grandstand chairs installed in the relatively front row in the theater is used in such a way that the height of the stopper 40 is relatively low.

Meanwhile, when the upper end of the elevating bolt 50 is tightened to be at a relatively high position, the stopper 40 is relatively raised, and the elevating bracket 20 attached to the backrest 8 is attached to the upper surface of the stopper 40 thus raised. Since the bottom surface of is supported, the angle which the backrest 8 turns down can be made relatively small. In the grandstand chairs installed in the rear row relatively in the theater is used in this way to increase the height of the stopper 40 relatively.

Accordingly, the chair back 8 installed in the first row to the second row on the basis of the screen in the theater by the stopper 40 and the elevating bolt 50 installed in the rear of the seat 4 of the chair so as to be lifted and lowered is excluded. The losing angle is controlled relatively large, the chair back 8 near the rear row is controlled to have a relatively small angle, and the chair back 8 near the middle is adjusted to a moderate angle. It can be, so that you can enjoy watching in a comfortable state to the back (8). The viewing time of a movie or theater is at least one hour, and the backrest (8) angle of the chair can be easily adjusted to the angle desired by the viewer so that it can be comforted. It is to prevent inconvenience in advance, and this helps to make the viewing more enjoyable and comfortable.

Meanwhile, the stopper 40, which is a main part of the present invention, includes a urethane shock absorbing material 46, and the backrest 8 is backed up to the shock absorbing material 46 at the moment when the lifting bracket 20 hits the stopper 40. Since the shock is absorbed, it is effective to block the case where noise is generated at the moment when the backrest 8 is squeezed back.

Further, even when the spectator lifts his back and the backrest 8 is restored by the force of the coil spring 64, the lifting bracket 20 connected to the backrest 8 does not hit the rear bottom portion of the seating seat 4 directly, but is seated. Since it is in contact with the cushioning material 80 of the urethane material provided in the seat 4, there is an effect that blocks the noise generated due to the impact even when restoring the backrest (8).

In addition, the stopper 40 has a structure in which a urethane buffer material 46 is largely coupled to a channel member 44 of a metal material, and two hook members 46c provided on the bottom surface of the buffer material 46 are made of a metal material. By being fitted into the hook hole 44a formed in the channel member 44, the stopper 40 is formed.

At this time, at the lower end of the hook member 46c of the bottom surface of the shock absorbing material 46, a hook hook portion 46d that is hooked to the bottom wall of the hook hole 44a of the channel member 44 is provided, and the hook hook portion 46d is provided. The conical tapered portion 46e is provided, so that the hook member 46c of the buffer member 46 fits more smoothly into the hook hole 44a of the channel member 44 by the tapered portion 46e. It becomes possible.

Further, since the rod-shaped guide 48 of the bottom of the stopper 40 is coupled to the lifting hole in the center of the support frame 30 so as to be lifted and lowered through the bush 70 made of plastic, the stopper 40 is repeatedly lifted and lowered. The rod-shaped guide 48 is prevented from being easily worn by the rod, and furthermore, since the rod-shaped guide 48 is made to move up and down smoothly along the lifting hole of the support frame 30, the stopper 40 is raised and lowered. The operation can be made more smoothly.

In addition, the plastic material bush 70 has a shape having an elastic locking piece 74 by a plurality of cutouts 72 on the lower circumference, and a tapered portion 74a on the outer peripheral surface of the lower end of the elastic locking piece 74. Is formed, and each of the elastic engaging pieces 74 of the bush 70 can be more smoothly coupled to the lifting portion of the support frame 30 by the tapered portion 74a and the cutout 72. It means that the plastic bush 70 can be more easily assembled to the support frame (30).

In the above, the features of the present invention have been described with reference to preferred embodiments, but the contents described in the drawings and the specification are exemplary descriptions of the present invention, which are merely used for the purpose of illustrating the present invention and are described in the meaning limitations and claims. It is not intended to be used to limit the scope of the invention. Therefore, various modifications and equivalent other embodiments can be carried out within the allowable technical spirit of the present invention.

1 is an exploded perspective view showing the main part of the present invention from the upper side

Figure 2 is an exploded perspective view showing the main part of the present invention from the lower side

3 is a perspective view showing the assembled state of FIG.

4 is a perspective view showing the assembled state of FIG.

Figure 5 is a rear view of the grandstand chair installed the main part of the present invention

Figure 6 is a side view showing a partial cut away the structure of the main part of the present invention

FIG. 7 is a side view showing a state in which the backrest shown in FIG. 6 is backed up; FIG.

8 and 9 are side cross-sectional views showing an enlarged state of adjusting the height of the stopper which is the main part of the present invention;

Claims (6)

A support frame 30 provided on the seating seat 4 to be positioned below the lifting bracket 20 which is lowered and rotated together when the backrest 8 provided behind the seating seat 4 of the chair is pivoted backwards, A stopper 40 installed on the support frame 30 to support the lifting bracket 20 when the backrest 8 is backed up, and the stopper 40 on the support frame 30. Backrest stopper structure of the grandstand chair characterized in that it comprises a lifting control member for adjusting the height. 2. The grandstand chair according to claim 1, wherein the elevating adjustment member is screwed to the supporting frame 30 so as to elevate and the upper end thereof comprises an elevating bolt 50 for supporting the stopper 40. Backrest stopper structure. According to claim 2, The stopper 40 is a stop support portion 42, the bottom surface of the elevating bracket 20 is supported in contact with the support frame 30 and at the same time extends to the lower side of the stop support portion 42 Backrest stopper structure of the grandstand chair characterized in that it comprises a guide 48 coupled to the liftable. According to claim 3, wherein the stop support portion 42 is provided with a guide member 48 on the bottom surface and the upper surface is composed of a channel member 44 and the buffer member 46 coupled to the channel member 44 The backrest stopper structure of the grandstand chair. According to any one of claims 1 to 4, The seating seat (4) is further provided with a separate cushioning material (80) for contacting the lifting bracket (20) when the backrest (8) is returned to its original position Backrest stopper structure of the grandstand chair. The seating seat 4 provided with the fixing bracket 10 on the bottom surface, the legs 6 disposed on both sides of the seating sheet 4, and the front end portion of the fixing bracket 10 via the hinge portion 22. When the lifting bracket 20 coupled to the backrest 8 coupled to the backrest 8 arranged in the upright direction at the rear of the seating seat 4 and the backrest 8 provided at the rear of the seating seat 4 are backed up, The support frame 30 provided in the seating seat 4 and the support frame 30 are provided to be lifted and lowered so that the seat bracket 4 is positioned below the lifting bracket 20 which is pivoted down. When lifted, the stopper 40 for supporting the lifting bracket 20 and the lifting bolt 50 is screwed to the support frame 30 to adjust the height of the stopper 40 according to the operation includes a lifting bolt (50) A grandstand chair, characterized in that configured by.

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