KR102072935B1 - Chair seat with backrest and seat fixing function - Google Patents

Abstract

According to the present invention, provided is a chair seat having a function for moving and fixing a back-integrated seat. According to the purpose of the present invention, a back-integrated seat manufactured by integrating a seat part and a back part through injection molding is firmly fixed to a seat frame and a back frame, which are frame bodies, by only fastening an edge part with an outer part, and, in this way, with the convenient manipulation of a stop control lever after the sliding of the seat part, a forward movement state is fixed while a natural angle movement of the integrated back part is provided, thereby guaranteeing user convenience. To achieve the purpose of the present invention, a seat part and a back part of a chair for a sitting function and a back function are integrated through injection molding, and a bent end bent to be formed on an edge is firmly assembled in a suspended state while surrounding the outside of the edge of the seat frame and the back frame. Therefore, the complexity of components caused by assembly can be simplified to maximally reduce manufacturing costs.

Description

Chair seat with backrest and seat fixing function

The present invention provides a rigid fixed to the back frame frame and the seat frame frame of the integral back plate manufactured by injection molding integrally the seat plate part and the backrest unit is provided with a rigid fixing and thus the stop adjustment lever after the slide movement of the seat plate part. It is related to a chair seat having a fixed movement function of the integral back seat that is provided with a natural angle movement of the integral backrest part at the same time as the fixed state of the forward operation is provided.

In general, the chair comprises a backrest and a seat plate where the user can contact the back and the hip, respectively, and it is well known that an office chair for a long time is used with a desk for work or study at work or at home. .

Since the seat of the chair plays a role of supporting the user's hip for a long time, it is preferable that the user is designed to reduce fatigue when seated for a long time.

In particular, since a person's physical condition is different, a chair having a structure capable of moving before and after the seat plate in accordance with a user's physical condition has been recently disclosed with various technologies.

Regarding such a seat plate moving structure of the chair, Patent Documents 1 to 3 may be exemplified.

Patent Document 1 discloses a 'stool having a moving structure of the seat portion' to move forward when the seat frame is pressed due to a person sitting, and to move forward when the pressed state is released.

In addition, Patent Literature 2 discloses a 'back and forth movement control device for an office chair', which can not only move the seat plate back and forth, but also install an accessory on the bottom of the stationary plate, and prevents the eccentricity. .

In addition, Patent Document 3 discloses a 'chair seat unit' that can facilitate slide operation by pulling a grip that protrudes to the lower side of the seat plate for the slide movement of the seat plate.

In addition, Patent Document 3 discloses a 'sliding seat sliding folding chair that can adjust the front height of the seat to facilitate the slide operation by pulling the grip protruding to the lower side of the seat for the slide movement of the seat.

The above-mentioned patent documents have a disadvantage in that the seat plate part and the backrest part are separated by assembly using fastening members such as bolts (screws) on the seat plate frame and the back plate frame, and the connection assembly structure is complicated.

And a stopper for fixing the movement of the seat plate in a state in which the structure for the movement of the seat plate is complicated and the stopper structure for fixing the forward movement state according to the movement of the seat plate is complicated and the seat plate is moved according to the body shape of the person sitting. Since the lock part is installed at one side of the lower side of the seat plate part, it is very inconvenient for the user to operate by hand.

Korean Patent Registration No. 10-1009490 (registered on Jan. 12, 2011) Korea Patent Registration No. 10-1036844 (2011.05.18. Registration) Korean Patent Registration No. 10-1616738 (registered April 25, 2016) Korea Patent Registration No. 10-1715092 (registered on March 6, 2017)

The present invention was developed to solve the disadvantages of the prior art as described above,

An object of the present invention is to make the seat and the backrest of the seat and backrest function to the user in the chair integrally by injection molding, and the bent end formed on the rim is firmly assembled in a state in which it is wrapped around the outside of the edge of the backboard frame and the seatboard frame. In order to simplify the complexity of the components according to the assembly to provide a chair seat having a fixed fixing function of the integral back seat plate to reduce the manufacturing cost as much as possible.

In addition, the present invention after the slide movement of the seat plate of the injection-molded back seat having a resilience, the user is provided with a natural angle of movement of the backrest of the integral part at the same time as the fixed state of the lever is fixed by the stop lever control operation convenience is ensured convenience of use The present invention provides a chair seat having a movement fixing function of an integrated back seat.

In the present invention to achieve the above object

Cushion plate assembled to be tilted rearward from the damper assembly assembled from the third shaft pin at the lower portion, a pair of 'b' shaped each assembled at intervals on the left and right sides of the cushion plate and bent upward in the rear side A guide frame, a seat plate frame disposed at an upper portion of the pair of guide frames in an inner side and assembled in a pulled state to the rear of the left and right guide frames by a tension spring, and the pair of the pair of left and right sides of the seat frame; A seat plate portion consisting of a guide frame and a pair of armrests that block the separation of the seat frame by screw assembly respectively;
Assembled by the first shaft pin in the shaft hole of the upper bent end of the guide frame and the shaft hole penetrated in the middle portion, respectively, by the shaft projection and the second shaft pin provided in the rear of the seat plate frame to the shaft hole of the lower end of the left and right frames Each of which is assembled, the back portion provided with a neck support at the top and the back portion is composed of a '등' shaped back frame frame assembled therein;

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An integral back seat having restorability formed by integrally the seat plate and the back plate which are covered on the front of the seat plate and the back plate;

"B" shaped guide slots provided in front of both reinforcing rails of the seat plate frame, lever operating grooves formed on the outside of the armrest front corresponding to the guide slots, and stop guide holes penetrating the front and rear of the lever operating grooves. And a stopper lever and a stopper rod coupled to the " b " shaped guide slot through the shaft hole, and a stopper rod of the stopper control lever through the movable fixing hole in the stopper bar of the stopper control lever. A fixing part consisting of a stopper fixing plate interposed between the armrests; Including,

The seat plate is assembled by being caught in a state in which the "c" shaped bending end formed on the rim surrounds the outside of the frame of the seat frame and the back frame.

The fixing portion is applied to the back plate of the back plate while the seat plate is pushed backwards at the same time and the '∩' shaped back frame is folded back around the first shaft pin of the guide frame, the pair of guide frame back frame When the seat plate frame slides forward from the tip of the second shaft pin assembled with the shaft, the stop adjustment lever rotates to the shaft, and the stopper rod moves downward from the rising point of the "b" shaped guide slot to move to the descending point. Stop and at the same time move from the upper fixing hole of the stop fixing plate to the lower fixing hole to fix the forward state of the seat plate, and rotate the stop adjusting lever upward to move from the lower fixing hole of the stop fixing plate to the upper fixing hole. When the force applied to the back plate is removed by releasing the fixed state of the stopper rod, Imga characterized in that a circle constructed to return to the restoring force of each tension spring.

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According to the present invention, since the back plate and the seat plate are integrally formed by injection molding, and are combined without a separate fastening member, excellent assembly performance can be achieved and the required constituent members can be significantly reduced, thereby reducing manufacturing costs.

In addition, according to the present invention, the back plate made of a single injection molding moves the seat plate forward in a seated state and the simple operation of rotating the stop adjustment lever of the fixed portion protruding in front of both armrests using the left and right hands By fixing it as it is easy to fix the operation of the movement of the chair seat can maintain the effect of ensuring the convenience of use.

1 is a bottom perspective view of a chair seat to which the present invention is applied.
2 is an exploded perspective view of the components of the present invention.
3 is an assembled cross-sectional view of the present invention.
4 is an enlarged view of an excerpt "F" of FIG. 3.
5 is an enlarged view of an excerpt "G" of FIG. 3.
6 is a cross-sectional view taken along the line IV-IV of FIG. 3.
FIG. 7 is an enlarged view illustrating an “H” portion of FIG. 6.
8 is an explanatory view of the assembly relationship between the armrest, the seat plate frame and the guide frame of the present invention.
FIG. 9 is a partially omitted enlarged exploded perspective view illustrating an assembly relationship of an “I” part of FIG. 8.
Fig. 10 is a partially omitted cross-sectional view of the present invention, in which the back plate is in a reverse state.
FIG. 11 is an enlarged view illustrating an “J” part of FIG. 10.
12 is a partially omitted cross-sectional view of the present invention, and is a forward state view of the back seat plate.
FIG. 13 is an enlarged view illustrating an “K” part of FIG. 12.
14 to 18 are step diagrams for explaining the assembly step of the present invention,
14 is an assembly step diagram of the seat frame and the seat frame,
15 is a step of assembling the integral back seat plate sandwiching the cushioning elastic material in front of the seat frame,
Figure 16 is a step of assembling the reinforcement frame to the rear of the seat frame,
17 is an assembly step diagram of the guide frame assembled with the cushion plate in the seat frame and the back frame;
18 is a step of assembling the constituent members of the fixing part to the left and right armrests and the neckrest and armrests in the assembled state of FIG.

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

1 is a bottom perspective view of a chair seat to which the present invention is applied, FIG. 2 is an exploded perspective view of the constituent members of the present invention, and FIG. 3 is an assembled cross-sectional view of the present invention.

Referring to these drawings, the chair seat of the present invention includes a seat plate part 100 for supporting a user's hip seating, a back plate part 200 supporting the user's back in the seat plate part, the seat plate part 100 and a back plate part. And a component of the back plate 300 assembled in a covered state over 200.

The seat plate part 100 has a gap between the cushion plate 110 and the left and right sides of the cushion plate 110, which are assembled to be tilted rearward from the damper assembly 160 assembled by the third shaft pin P3 at the bottom. A pair of 'b' shaped guide frames 120 and 120, respectively, which are assembled to face each other and bent upward in a rear side, are disposed at an upper portion on the inside of the pair of guide frames 120 and 120, and a pair of tension springs 140 and 140. By the "c" shaped seat plate frame 130 assembled in the pulled rear of the pair of guide frame (120,120), the guide frame 120 and the back plate 200 on both left and right sides of the seat frame It is composed of a pair of armrests (150, 150) assembled to the back frame 210 of the first shaft pin (P1).

The cushion plate 110 is installed damper assembly 160 is built in the third shaft pin (P3) is elastically installed in a state that the rear of the third shaft pin (P3) is lifted to the axis, the unexplained leg portion As the conventional structure in which the leg is connected to the rod and the shaft assembly of the conventional shock absorber configured at its upper end, a detailed description thereof will be sufficiently understood.

The pair of guide frames 120 and 120 are assembled at intervals on the left and right sides of the cushion plate 110, respectively, and are molded in a 'b' shape bent upward in the rear side.

Each of the pair of guide frames 120 and 120 protrudes the partition wall 122 in the longitudinal direction to form a guide rail surface 121, and the hook rail 123 protrudes from the guide rail surface 121 and the partition wall 122. At the same time, the shaft hole 124 penetrates the tip of the bent portion, and at the same time, the coupling piece 125 and the pair of assembly pieces 126 and 126 and the pair of shaft holes 127 are spaced apart from each other.

In this case, the assembly pieces 126 of the pair of guide frames 120 and 120 are mutually simplified by fastening shaft holes 112 and screws (not shown) of the support plate 111 formed in parallel to the upper portion of the cushion plate 110. Are assembled.

In addition, the pair of guide frames 120 and 120 may prevent the torsional load of the rear by fastening the coupling pieces 125 between both sides of the separate reinforcing bars 128 and screwing, respectively.

The seat plate frame 130 is formed in a "c" shape and the seat groove 131 is formed on the upper part of the front frame connecting the left and right frame, and the cushioning material (P / A) such as sponge is stored therein, The reinforcing rails 132 and 132 slide-moving under the right frame are protruded, and the left and right frames at the rear of the reinforcing frame 130b are disposed between the connecting pieces 139 protruding from the inside of the reinforcing rail 132. This screw assembly can prevent deformation such as bending and torsion as much as possible.

The reinforcing rails 132 and 132 of both sides are formed by moving a movement limiting hole 133 to restrict movement in the front and rear and a movement limiting groove 134 having an open lower portion, and the movement limiting hole 133 and the movement limiting. The spring receiving groove 135 in which the tension spring 140 is accommodated between the grooves 134 and the hook 136 are formed in front of the spring receiving groove, and the axial projection 138 at the rear side of the movement limiting groove 134. This protruding bearing groove 137 is molded.

Here, both ends of the tension spring 140 are caught by the hooks 123 of the pair of guide frames 120 and 120 and the hooks 136 of the seat plate frame 130 so that both reinforcement rails of the seat plate frame 130 are locked. (132, 132) is a slide movement is guided forward from the guide rail surface 121 of the guide frame (120, 120).

In addition, the seat plate frame 130 is guided by a slide movement forward in a state in which separation is prevented by a pair of armrests 150 and 150 screwed to the guide frames 120 and 120 at both left and right sides.

 That is, the armrests 150 and 150 have a closed ring shape having a curved shape of the guide frames 120 and 120, and two fixing pins 151 and 151 protruded to the inner side of the lower horizontal part are both reinforcing rails of the seat plate frame 130 ( A pair of shaft holes 127 penetrated through the barrier 122 of the guide frame 120 and screwed through the movement restriction hole 133 and the movement restriction groove 134 of the 132, 132, the pair The guide frames 120 and 120 are axially assembled by screw assembly with the first shaft pin P1 protrudingly formed in the rear bent portion in the shaft hole 124 penetrated at the end of the partition wall 122 of the bent portion.

In this case, the first shaft pin (P1) is screwed in the shaft hole 124 of the guide frame (120, 120) through the shaft hole 211 penetrated in the middle portion of the back frame (210).

The seat plate frame 130 is supported by the guide rail surfaces 121 of the guide frames 120 and 120 to be moved forward by being supported by the reinforcing rails 132 and 132 on both sides, but the movement limit formed on each of the reinforcing rails 132 is limited. The movement of the hole 133 and the movement limiting groove 134 is limited by the fixing pins 151 and 151 of the armrests 150 and 150.

And the forward movement state of the seat plate frame 130 is fixed by the operation of the fixing unit 170 is configured in a protruding state in front of the left, right armrest 150.

The fixing portion 170, as shown in detail in Figs. 8 and 9, the "b" shaped guide slot 132a, which is formed in front of both reinforcing rails 132 of the seat plate frame 130, this guide slot The "b" shaped through the lever operating groove 152 formed on the outside in front of the armrest 150, the stop guide hole 153 and the shaft hole 154 penetrated before and after the lever operating groove A stop adjustment lever 171 having a stopper rod 172 and an shaft rod 173 coupled to the guide slot 132a, and a stopper rod 172 of the stop adjustment lever penetrated through a moving fixing hole 175. It consists of a stop fixing plate 174 which is interposed between the left and right frames of the left plate frame 130 and the armrest 150 inside the state.

At this time, the movement fixing hole 175 of the stop fixing plate 174 is formed by the upper and lower fixing grooves 175a and 175b having the elastic pieces 176, one side of which is opened, to move the stopper rod 172. The stopper rod 172 may be moved by the inward elastic force of the elastic piece 176 at the position.

In addition, the stop fixing plate 174 is accommodated in the receiving groove 155 formed in the inner side of the stop guide hole 153 of the armrest 150 and at the same time is coupled to the setting projection 156 on one side of the setting hole (177). By coupling through), it is firmly assembled in a state that eliminated the gap between the outer side of the seat plate frame 130 and the inside of the armrest 150 as much as possible.

In addition, the armrest 150 is assembled in a state in which the coupling groove 157 concave therein is engaged with the coupling protrusion 129 formed corresponding to the guide frame 120 to guide the movement of the seat plate frame 130. The frame 120 may be stably supported while being firmly fixed.

The back plate 200 is a pair of '∩' shaped backrest frame 210 is provided with a neck support 220 in the upper end assembly, the shaft hole 211 penetrated through the middle portion of the left, right frame of the pair The shaft hole 124 of the upper bent end of the guide frame (120,120) and the first shaft pin (P1) of the armrest 150 are assembled, respectively, the shaft hole of the lower end of the left and right frame of the back frame (210) 212 is assembled to the shaft projection 138 and the second shaft pin (P2) provided in the rear of the seat plate frame 130, respectively.

At this time, the assembly of the shaft hole 212 of the seat frame frame 130 and the back plate frame 210 by the second shaft pin (P2) is formed in the bearing groove 137 of the seat plate frame 130, the shaft projection 138 In the state in which the shaft hole 212 of the back frame 210 is assembled to the shaft, the friction ring 213 is assembled to fix the shaft to the second shaft pin (P2).

And the left and right frame end of the back frame 210 is formed in accordance with the bending shape of the guide frame (120, 120) of both sides by the assembly of the first shaft pin (P1) and the second shaft pin (P2) in close contact with each other. Is assembled.

The one-piece back plate 300 and the frame frame 330 of the edge portion assembled in a state that is covered with the front of the back frame frame 130 and the back frame frame 210 of the seat plate 100 and The seat plate 310 and the back plate 320 are integrally provided by injection molding in a porous mesh plate 340 structure therein.

The back plate 300 is provided with a resilient elasticity (resilience) against being rolled back due to the nature of the resin.

As shown in FIGS. 4 to 7, the seat plate 300 includes the seat frame frame 130 and the back frame frame so that the “c” shaped bent end 350 is formed on the frame frame 330. It is assembled by being caught in a state surrounding the outside of the locking groove 130a formed on the edge of the 210.

Of course, on the rim surface of the seat frame 130 and the back frame 210 to form a locking groove (130a, 210a) and the "c" shaped bending end 350 of the skeleton frame 330 is caught Are assembled.

Such assembling of the present invention will be described with reference to the assembling step of FIGS. 14 to 18.

Referring to FIG. 14, first, the seat frame frame 130 and the back frame frame 210 are assembled.

That is, the friction ring in the state in which the shaft hole 212 of the back plate frame 210 is assembled to the shaft projection 138 protruding from the bearing groove 137 on the rear side of the reinforcing rail 132 of the seat plate frame 130 ( 213) and the shaft is fixed by the second shaft pin (P2).

In this assembled state, as shown in FIG. 15, a cushioning material (P / A) such as a sponge is accommodated in the seat groove 131 of the seat plate frame 130, and the integrated seat plate 300 is assembled.

That is, the "c" shaped bending end 350 of the skeletal frame 330 wraps over the engaging grooves 130a and 210a formed on the edge of the seat frame frame 130 and the back frame frame 210. Assemble

In this assembled state, as shown in FIG. 16, the reinforcing frame 130b is screwed at a lower portion between the connecting pieces 139 of the reinforcing rails 132 formed at the rear left and right frames forming the seat plate frame 130. .

In this assembled state, as shown in Figure 17, the seat plate frame 130 and the backing frame 210, the axial hole 124 through the guide plate 120 assembled with the cushion plate 110 through the end of the partition 122 of the bent portion Assemble with

In this assembled state, as shown in Figure 18, the left and right armrest 150 of the seat frame frame 130 in the state of assembling the stop adjustment lever 171, the stop fixing plate 174 constituting the fixing portion 170 Assemble each armrest 150 outside the left and right frame.

Specifically, referring to FIGS. 8 and 9, the guide frames 120 and 120 penetrate the first shaft pins P1 of the armrest 150 through the shaft holes 211 penetrated through the middle portion of the backplate frame 210. In the shaft hole 124 of each screw is assembled.

The two fixing pins 151 and 151 penetrate through the movement limiting holes 133 and the movement limiting grooves 134 of both reinforcing rails 132 and 132 of the seat plate frame 130, and the partition wall 122 of the guide frame 120. A pair of shaft holes 127 and screw assembly are fixed to each other to complete the assembly.

At this time, the stopper rod 172 and the shaft of the stop adjustment lever 171 in the state of assembling the stop fixing plate 174 in the receiving groove 155 formed inside the armrest 150 constituting the fixing part 170 Assembled (173) in the state of assembling the "b" shaped guide slot 132a of the reinforcing rail 132 of the seat plate frame 130 and the moving fixing hole 175 of the stopper plate 174. Then, the chair is connected to the damper assembly 160 built into the cushion plate 110 by connecting a leg (not shown) to the shock absorber rod and shaft assembly.

The operation of the present invention will be described with reference to FIGS. 10 to 13 as follows.

10 is a state in which no force is applied to the back plate part 200 of the first back seat plate 300 according to the seating.

In such a state, the seat frame 130 is in a reverse state and the back frame 210 is in a standing state due to the restoring elastic force of the back plate 300.

Of course, in this state, as shown in the enlarged view of FIG. 11, the stop adjustment lever 171 of the fixing unit 170 is in a raised state, that is, the "b" shaped guide slot 132a of the seat plate frame 130 and the stop guide hole 153. In the upper side and the upper fixing groove 175a of the moving fixing hole 175 of the stop fixing plate 174 is placed in the stopped state by the elastic piece 176.

In this state, when the user applies a force to lean the back plate 320 of the back plate 300, the restoring elastic force is overcome and the seat plate 310 slides in association with the back plate 210 of the back plate 200. That is, the tension of the tension spring 140 elastically installed in the seat plate frame 130 and the guide frame (120, 120) on both sides is moved forward by the distance (D) of the movement restriction groove 133 as shown in FIG.

In this state, the front plate movement state of the seat plate frame 130 is fixed by the operation of the fixing unit 170 consisting of a protruding state in front of the left, right armrest 150.

That is, as the stop control lever 171 is rotated to the shaft 173 and downwardly rotated, the stopper rod 172 of the stop fixing plate 174 moves along the “b” shaped guide slot 132a and the moving fixing hole 175. Located in the lower fixing groove 175b of the elastic piece 176 can maintain the moving state of the stopper rod 172 with the inward elastic force.

In this state, when the force applied to the back plate part 200 is removed while rotating the stop control lever 171 upward, the seat plate frame 130 returns to its original state by the tension force of the tension spring 140. ) Is also set to its original state and returns to the state of FIG. 10.

The present invention as described above is a simple component parts assembling the integral back plate 300 and at the same time the bending deformation of the back plate 300 having elasticity resilience by fixing by the fixing unit 170 to facilitate the user's seating convenience Guaranteed.

100: seat plate 110: cushion plate
111: support plate 120: guide frame
130: seat frame 131: seat groove
132: reinforcement rail 132a: "b" shaped guide slot
133: movement restriction hole 134: movement restriction groove
132: reinforcement rail 140: tension spring
150: armrest 153: stop guide hole
154: shaft hole 160: damper assembly
170: fixing part 171: stop adjustment lever
172: stopper rod 173: shaft rod
174: stopper plate 175: movement adjustment hole
176: elastic piece 177: setting hole
200: back plate 211, 212: shaft hole
210: back frame 300: back seat
310: seat 320: back
330: skeleton frame 340: porous mesh plate
P1: first shaft pin P2: second shaft pin
P3: 3rd axis pin

Claims (4)

Cushion plate assembled to be tilted rearward from the damper assembly assembled from the third shaft pin at the lower portion, a pair of 'b' shaped each assembled at intervals on the left and right sides of the cushion plate and bent upward in the rear side A guide frame, a seat plate frame disposed at an upper portion of the pair of guide frames in an inner side and assembled in a pulled state to the rear of the left and right guide frames by a tension spring, and the pair of the pair of left and right sides of the seat frame; It is assembled with a first shaft pin in the seat plate portion consisting of a guide frame and a pair of armrests to block the separation of the seat plate frame by screw assembly respectively, and a shaft hole penetrated through the shaft hole and the middle portion of the upper bent end of the guide frame, respectively. By the shaft projection and the second shaft pin provided in the rear of the seat plate frame is assembled into the shaft hole of the lower end of the left and right frames, respectively, This starts at the ends supporting the neck is provided with '∩' shape the back panel are assembled inside the frame in the chair seat plate-part backing configured,
An integral back seat having restorability formed in which the seat and the back plate which are covered on the front of the seat and the back part are integrally formed;
"B" shaped guide slots provided in front of both reinforcing rails of the seat plate frame, lever operating grooves formed on the outside of the armrest front corresponding to the guide slots, and stop guide holes penetrating the front and rear of the lever operating grooves. And a stopper lever and a stopper rod coupled to the " b " shaped guide slot through the shaft hole, and a stopper rod of the stopper control lever through the movable fixing hole in the stopper bar of the stopper control lever. A fixing part consisting of a stopper fixing plate interposed between the armrests; Including but not limited to,
The seat plate is assembled by being caught in a state in which the "c" shaped bending end formed on the rim surrounds the outside of the frame of the seat frame and the back frame.
The fixing portion is applied to the back plate of the back plate while the seat plate is pushed backwards at the same time and the '∩' shaped back frame is folded back around the first shaft pin of the guide frame, the pair of guide frame back frame When the seat frame moves forward with the second shaft pin assembled with the tip of the shaft, the stop adjustment lever rotates to the shaft, and the stopper rod moves downward from the rising point of the "b" shaped guide slot and moves to the descending point. Stop and at the same time move from the upper fixing hole of the stop fixing plate to the lower fixing hole to fix the forward state of the seat plate, and rotate the stop adjusting lever upward to move from the lower fixing hole of the stop fixing plate to the upper fixing hole. When the force applied to the back plate is removed by releasing the fixed state of the stopper rod, A chair seat plate to be a function of the one-piece such as a moving fixed seat plate, characterized in that a circle constructed to return to the restoring force of each tension spring.
The method of claim 1,
The one-piece backboard is provided with the frame and the backboard of the frame part of the frame part assembled in the state covered with the backboard frame of the seatboard part and the backboard part of the frame and a porous mesh plate structure therein. ,
Moving fixed function of the integrated back seat plate, characterized in that the assembly is caught in a state that wraps the outer side of the locking groove formed on the frame of the seat frame and the back frame so that the "B" shaped bent end is caught on the frame frame Chair seat provided with.
The method of claim 1,
The moving fixing hole of the stopper fixing plate is formed by the upper and lower fixing grooves having an elastic piece divided on one side thereof, and configured to maintain the moving state of the stopper rod with the inward elastic force of the elastic piece at the moving position of the stopper rod. A chair seat having a movable fixing function of an integrated back seat.
The method of claim 1,
The stopper fixing plate is accommodated in the receiving groove formed on the inner side of the stop guide hole of the armrest and at the same time through the setting hole for coupling to the engaging projection of one side to eliminate the gap between the outside of the seat plate frame and the inside of the armrest as much as possible Chair seat having a fixed movement function of the integral back seat, characterized in that the assembled state.

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