KR20230148575A - Seat cushion interlocking structure seat - Google Patents

Abstract

The present invention relates to a seat having a cushion interlocking structure. According to the present invention, the front is formed in an open form, and a pair of first coupling holes are formed on the upwardly bent surfaces of the inner surfaces of both front sides and the rear surfaces of both sides. A base frame is bent upward and has a pair of second coupling holes formed on the upper rear side, and is formed to support the back, and has a pair of first link holes formed on both sides of the lower side, and on the upper side of the first link hole. A pair of second link holes are formed to form a back frame and a seating surface that are axially coupled to the second coupling hole so as to be rotatable, and long holes slanted forward and upward are formed on both sides of the front, and slant upwards at the rear on both sides. It is bent, and a pair of link protrusions are formed on the outer side of the rear upper surface in the form of a cylinder but are hollow on the inside, and include a cushion frame in which the link protrusions and the first link hole are axially coupled so as to be rotatable, and a first coupling hole and A seat having a cushion interlocking structure can be provided, wherein the long hole is fastened by a fastening member, and the cushion frame is guided along the long hole and fastened to enable sliding movement.

Description

Seat having a cushion interlocking structure {Seat cushion interlocking structure seat}

The present invention relates to a seat having a cushion interlocking structure, and more specifically, to a seat having a cushion interlocking structure in which the back frame and the cushion frame of a vehicle seat are linked and the tilting operation of the cushion frame is linked during the reclining operation of the back frame. It's about.

Generally, seats are installed in the front and rear of the vehicle interior. The seat consists of a seat back that supports the rider's back, and a seat cushion that supports the rider's hips and thighs. The seats will be equipped with various convenience functions to provide convenience to passengers.

These convenience functions include a sliding function that can adjust the seat cushion by pushing and pulling it back and forth according to the passenger's body type, and a reclining function that can adjust the angle of the seat back with respect to the seat cushion. The reclining function is provided by a recliner mounted on the hinged joint of the seat cushion and seat back.

As mentioned earlier, the seats are installed front and back, and due to the above-mentioned functions, passengers riding on seats located at the back may experience discomfort while boarding because the gap between the seats is reduced.

In addition, due to the installation of a recliner, a large number of holes must be machined in the frame that forms the seat back and seat cushion, which reduces the rigidity of the frame. In lightening vehicle parts, which has recently become an issue, the weight of the recliner increases. It increases.

In addition, in the case of recliners that work with the seats of large vehicles, they are implemented using an expensive electric system, which causes an increase in seat manufacturing costs.

Therefore, there is a need to develop a seat that relieves passengers' discomfort by maintaining the distance between seats and has functions such as sliding and reclining without installing a recliner.

The prior art includes Korean Patent Publication No. 10-2007-0032345, “Vehicle Seatback Recliner and Assembly.”

In order to solve the above problems, the present invention links the structures of the back frame and cushion frame that make up the seat, and limits the reclining angle of the back frame and the sliding length and tilting angle of the cushion frame, allowing seat operation without installing a recliner. The purpose is to provide a seat with a cushion interlocking structure that can relieve the discomfort of rear seat passengers.

A seat having a cushion interlocking structure according to an embodiment of the present invention to solve the above problem is formed in an open front shape, and a pair of first coupling holes are formed on the upwardly bent surfaces of the inner surfaces of both front sides, A base frame is formed in a shape that supports the back and is bent obliquely upward at the rear on both sides to form a pair of second coupling holes on the upper rear side, and a pair of first link holes are formed on both lower sides, and the first link A pair of second link holes are formed on the upper side of the hole to form a back frame and a seating surface that are pivotably coupled to the second coupling hole, and long holes that are inclined forward and upward are formed on both sides of the front. It is bent upward at the rear, and a pair of link protrusions are formed on the outer side of the rear upper surface in the form of a cylinder but are hollow on the inside, and include a cushion frame in which the link protrusions and the first link hole are axially coupled so as to be rotatable. You can.

Here, the first coupling hole and the long hole are fastened by a fastening member, and the cushion frame may be guided along the long hole and fastened to enable sliding movement.

Additionally, the base frame may be bent inward from both rear surfaces to form a limiting plate that limits the rotation angle of the back frame.

In addition, the seat having the cushion interlocking structure may be provided on both inner surfaces of the base frame and may further include a pair of dampers whose rear ends are coupled to both lower ends of the back frame.

In addition, the cushion frame extends in the longitudinal direction, the long hole in which continuous first gear teeth are formed is provided at the front, and the rear end is inclined upward and the link protrusion is formed on the outer side of the upper surface of the rear end. A plate, a second cushion plate formed to connect the rear inner side of the pair of the first cushion plates, a third cushion plate formed on the front of the second cushion plate and extending forward, the rear end of which is bent upward, and the third cushion plate It is formed on both sides of the rear of the cushion plate, and a cylindrical protrusion is formed in the direction of the long hole to penetrate the long hole and the first coupling hole, and engages with the first gear tooth along the outer peripheral surface of the protrusion abutting the inner surface of the long hole. It may include a pair of gear bodies on which second gear teeth are formed.

In addition, the seat having the cushion interlocking structure is formed along the longitudinal direction at the middle of both sides of the cushion frame, extends upward from the middle of the upper surfaces of both sides of the curved body with a curved surface and the base frame, and extends in the direction of the curved body. It may further include a movement control body that is bent and has a wedge formed on a surface facing the curved body that contacts the curved surface.

In addition, the long hole extends rearward along the longitudinal direction of the cushion frame, and a curved portion corresponding to the shape of the outer peripheral surface of the fastening member may be continuously formed along the inner longitudinal direction.

The seat having the cushion interlocking structure according to the embodiment of the present invention as described above is interlocked with the seat cushion when it is moved so that the angle of the seat back changes, allowing the seat cushion and the seat back to operate simultaneously.

In particular, reclining and tilting operations are possible without installing a separate recliner, which can increase frame rigidity compared to electric seats, achieve weight reduction, and reduce manufacturing and maintenance costs.

Additionally, the discomfort of rear seat passengers can be alleviated by limiting the turning angle.

Additionally, it is possible to prevent the seat cushion from moving suddenly.

Additionally, the angle of the front end of the seat cushion changes according to the tilting motion of the seat cushion, thereby preventing the discomfort of the seated person's legs rising from the ground and the feet not touching the floor.

Figure 1 is a perspective view showing a seat having a cushion interlocking structure according to an embodiment of the present invention.
Figure 2 is an exploded view of Figure 1.
Figure 3 is a perspective view showing the base frame of Figure 1.
Figure 4 is a perspective view showing the back frame of Figure 1.
Figure 5 is a perspective view showing the cushion frame of Figure 1.
Figures 6 (a) and (b) are exemplary diagrams showing the operation of Figure 1.
Figure 7 is a perspective view showing the damper provided in Figure 1.
Figure 8 is a perspective view showing first gear teeth formed in the gear body and long hole in the cushion frame of the seat having a cushion interlocking structure according to an embodiment of the present invention.
Figure 9 is a perspective view showing the cushion frame of Figure 8.
Figure 10 is a perspective view showing the first cushion plate and the second cushion plate of Figure 9.
Figure 11 is a perspective view showing the third cushion plate of Figure 9.
Figures 12 (a) and (b) are exemplary diagrams showing the operation of Figure 9.
Figure 13 is a perspective view showing a seat having a cushion interlocking structure according to an embodiment of the present invention provided with a bending body and a movement adjusting body.
Figure 14 is a plan view of Figure 13.
Figure 15 is a perspective view showing a curved portion formed by extending a long hole of a sheet having a cushion interlocking structure according to an embodiment of the present invention.
Figure 16 is a perspective view showing the cushion frame of Figure 15.

Since the present invention can make various changes and take various forms, specific embodiments will be described in detail in the text. However, this is not intended to limit the present invention to a specific disclosed form, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as “comprise” or “have” are intended to designate the existence of a combination of features, numbers, steps, components, etc. described in the specification, but are not limited to one or more other features or numbers, It should be understood that the existence or addition possibility of combinations of steps, components, etc. is not excluded in advance.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless clearly defined in the present application, should not be interpreted in an ideal or excessively formal sense. No.

Here, repeated descriptions, known functions that may unnecessarily obscure the gist of the present invention, and detailed descriptions of configurations are omitted. Embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 16.

Figure 1 is a perspective view showing a seat having a cushion interlocking structure according to an embodiment of the present invention, Figure 2 is an exploded view of Figure 1, Figure 3 is a perspective view showing the base frame of Figure 1, and Figure 4 is a view of Figure 1 It is a perspective view showing the back frame, Figure 5 is a perspective view showing the cushion frame of Figure 1, Figures 6 (a) and (b) are exemplary diagrams showing the operation of Figure 1, and Figure 7 is provided with a damper in Figure 1. This is a perspective view showing what has happened.

The seat 1 having a cushion interlocking structure according to an embodiment of the present invention refers to a seat installed in a vehicle, and can preferably be installed in a commercial vehicle such as a bus, truck, or van.

Referring to FIGS. 1 and 2 , the seat 1 having a cushion interlocking structure may include a base frame 100, a back frame 200, and a cushion frame 300.

The base frame 100 is a frame that holds the entire frame of the seat 1 having a cushion interlocking structure, and can be coupled to the floor inside the vehicle.

Specifically, referring to FIG. 3, the base frame 100 is formed in an open front shape, with a pair of first coupling holes 131 formed on the upwardly bent surfaces of the inner surfaces of both front sides and the rear surfaces of both sides. It may be bent obliquely upward to form a pair of second coupling holes 132 on the upper rear side.

More specifically, the base frame 100 may include a first base plate 110, a second base plate 120, and a third base plate.

The first base plate 110 is formed to extend in the height direction and can be coupled to the interior floor of the vehicle as a pair on both sides.

Specifically, the first base plate 110 may be vertically bent toward the facing inner surface to couple the lower surface of the first base plate 110 to the inner floor of the vehicle.

The second base plate 120 is formed in a 'ㄷ' shape with an open front, so that both sides can be coupled to the upper surface of the first base plate 110.

The third base plate 130 extends along both upper surfaces of the second base plate 120 and can be coupled to the upper surface of the second base plate 120 as a pair on both sides.

Additionally, the inner surfaces of both front sides of the third base plate 130 are bent upward to form an inner curved surface, and a pair of first coupling holes 131 may be formed on the inner bent surface.

The first coupling hole 131 formed in this way can be fastened to the long hole 311, which will be described later.

In addition, the third base plate 130 is formed with an 'ㄴ' shaped bending surface that is inclined backward and upward on both outer surfaces, and a second coupling hole 132 is formed on the rear upper side of the 'ㄴ' shaped bending surface. can be formed.

The second coupling hole 132 formed in this way can be fastened to the second link hole 202, which will be described later.

Additionally, the base frame 100 may be bent inward from both rear surfaces to form a limiting plate 140 that limits the rotation angle of the back frame 200.

Specifically, the limit plate 140 may limit the rotation angle of the back frame 200 to an angle of 0° to 40°.

Additionally, the limit plate 140 may have a space separated from the back frame 200, which takes into account the thickness of the seat cover (not shown) when the back frame 200 is mounted.

Accordingly, the seat 1 having a cushion interlocking structure limits the angle at which the back frame 200 is rotated, thereby relieving discomfort for rear seat passengers.

The back frame 200 may be formed to support the back.

Specifically, referring to FIG. 4, the back frame 200 has a pair of first link holes 201 formed on both lower sides, and a pair of second link holes 202 on the upper side of the first link hole 201. ) can be formed.

At this time, the back frame 200 may be pivotably coupled to the base frame 100 by fastening the second link hole 202 and the second coupling hole 132 using screws, pins, etc.

Accordingly, the back frame 200 supports the back of the seated person and rotates around its axis to change the angle at which it supports the back.

The cushion frame 300 may be formed as a seating surface.

Specifically, referring to Figure 5, the cushion frame 300 is formed with long holes 311 inclined forward and upward on both front sides, bent upward at the rear on both sides, and protruding in the form of a cylinder on the outer side of the rear upper surface. However, a pair of link protrusions 312 that are hollow on the inside may be formed.

At this time, the user can change the shape of the long hole 311 to limit the tilting angle of the cushion frame 300 and the reclining angle of the back frame linked thereto.

More specifically, the cushion frame 300 may include a first cushion plate 310, a second cushion plate 320, and a third cushion plate 330.

At this time, it is preferable that the first cushion plate 310, the second cushion plate 320, and the third cushion plate 330 are welded to form one frame, but they are not limited to this and can be combined in various ways.

The first cushion plate 310 is formed to be horizontally spaced apart from both sides of the upper surface of the base frame 100, extends in the longitudinal direction, and may be formed with the rear end bent upward.

Here, the first cushion plate 310 may have long holes 311 formed on both front sides inclined upward toward the front.

This first cushion plate 310 can be coupled to the base frame 100 by fastening the first coupling hole 131 and the long hole 311 with a fastening member such as a screw or pin.

At this time, the first cushion plate 310 may be guided along the long hole 311 and fastened to enable sliding movement.

Additionally, the first cushion plate 310 may have a link protrusion 312 that protrudes in the form of a cylinder but is hollow on the outside of the rear upper surface.

The first cushion plate 310 may be pivotably coupled to the back frame 200 by fastening the link protrusion 312 and the first link hole 201 using screws, pins, etc.

Specifically, the cushion plate 310 passes through the first link hole 201 and may be fastened with a screw, pin, etc. inserted into the link protrusion 312.

Accordingly, the cushion frame 300 may slide in the front-back direction according to a change in the angle of the back frame 200, and may be guided along the long hole 311 and tilted forward upward or backward downward.

In addition, the first cushion plate 310 may be coupled to the third cushion plate 330, which will be described later, and may have a support surface bent from the lower side to the front so as to withstand the weight of the seated person.

The second cushion plate 320 may connect the rear inner side of the pair of first cushion plates 310.

The third cushion plate 330 is formed on the front surface to connect the pair of second cushion plates 320, extends forward, and may be formed with the rear end bent upward.

As described above, the first cushion plate 310, the second cushion plate 320, and the third cushion plate 330 may be combined with each other to form a seating surface.

Referring to Figures 6 (a) and (b), to explain the operation of the seat 1 having a cushion interlocking structure, Figure 6 (a) shows the back frame 200 in an upright state.

At this time, the cushion frame 300 is in a horizontal state with the ground, and the position of the fastening member penetrating the long hole 311 can be confirmed to be located on the upper front side of the long hole 311.

In (b) of FIG. 6, the back frame 200 is rotated around its axis and the angle is changed.

Specifically, the back frame 200 is tilted backward by rotating around the axis where the second link hole 202 and the second coupling hole 132 are fastened.

More specifically, the upper portion of the back frame 200 of the second link hole 202 may be tilted rearward, and the lower portion of the second link hole 202 may be tilted forward.

At this time, it can be confirmed that the cushion frame 300 slides along the long hole 311 as the back frame 200 rotates, and is tilted forward and upward.

Here, it can be seen that the position of the fastening member penetrating the long hole 311 is located on the rear lower side of the long hole 311.

Specifically, since the cushion frame 300 is coupled lower than the first link hole 201, that is, the second link hole 202, of the back frame 200, it can slide forward.

At this time, when the cushion frame 300 slides forward, it is guided along the long hole 311 and slides, so it can be tilted forward and upward.

In this way, in the seat 1 having a cushion interlocking structure, the seat cushion and the seat back can operate simultaneously.

In particular, the seat (1) with a cushion interlocking structure allows reclining and tilting operations without installing a separate recliner, which can increase frame rigidity compared to an electric seat, achieve weight reduction, and reduce manufacturing and maintenance costs. You can.

Referring to FIG. 7, the seat 1 having a cushion interlocking structure is provided on both inner surfaces of the base frame 100, and further includes a pair of dampers 400 whose rear ends are coupled to both lower sides of the back frame 200. can do.

Specifically, the front end of the damper 400 may be coupled to the inner surface of the third base plate 130, and the rear end may be pivotably coupled to the lowermost end of the back frame 200.

At this time, the damper 400 may preferably be a hydraulic damper, but is not limited to this and may be formed of various types of dampers 400 that prevent the back frame 200 from rotating rapidly.

Figure 8 is a perspective view showing the first gear teeth formed in the gear body and the long hole in the cushion frame of the seat having a cushion interlocking structure according to an embodiment of the present invention, and Figure 9 is a perspective view showing the cushion frame of Figure 8. 10 is a perspective view showing the first and second cushion plates of Figure 9, Figure 11 is a perspective view showing the third cushion plate of Figure 9, and Figures 12 (a) and (b) show the operation of Figure 9. This is an example diagram.

Referring to FIGS. 8 and 9 , the cushion frame 300 of the seat 1 having a cushion interlocking structure according to an embodiment of the present invention may further include a gear body 340.

At this time, it is preferable that the support surface of the first cushion plate 310 is not formed.

Additionally, the third cushion plate 330 may be coupled to the first cushion plate 310 through the gear body 340 without separate welding.

Additionally, referring to Figure 10, the long hole 311 may have continuous first gear teeth 311a formed on its inner surface.

Here, the first gear teeth 311a are preferably formed on only one of the upper or lower surfaces of the long hole 311 so that the gear body 340 can engage and rotate.

Referring to FIG. 11, the gear body 340 is formed on both sides of the rear of the third cushion plate 330, and a cylindrical protrusion in the direction of the long hole 311 penetrates the long hole 311 and the first coupling hole 131. It can be formed to do so.

Specifically, the gear body 340 is formed on an inner surface of the first cushion plate 310 and can penetrate the long hole 311 and the first coupling hole 131 from the inside to the outside.

In addition, the gear body 340 is preferably formed with a thread along the outer peripheral surface of the end penetrating the long hole 311 and is assembled with a nut, but is not limited to this and can be assembled in various ways.

In addition, the gear body 340 may be formed with second gear teeth 341 engaged with the first gear teeth 311a along the outer peripheral surface abutting the inner surface of the long hole 311.

Specifically, the second gear teeth 341 may be formed inside the protrusion.

Additionally, the protrusion may be formed so that the thickness of the portion where the second gear teeth 341 are formed is thicker than the thickness of the portion where the second gear teeth 341 are not formed.

As described above, when the third cushion plate 330 of the cushion frame 300 is guided to the long hole 311 and tilted according to the slide movement of the entire cushion frame 300, the gear body 340 moves through the long hole ( The angle can be adjusted by engaging and rotating with the second gear tooth 341 of 311).

Specifically, with reference to Figures 12 (a) and (b), to describe the operation according to the rotation of the gear body 340 of the third cushion plate 330, Figure 12 (a) shows the cushion frame 300 The entire structure is level with the ground.

At this time, depending on the designer's request, the angle of the third cushion plate 330 may be formed in various ways, but when the cushion frame 300 does not slide, it is preferable that it is horizontal with the ground.

Figure 12(b) shows the cushion frame 300 sliding and tilting forward and upward.

At this time, it can be confirmed that the third cushion frame 330 is rotated downward and tilted.

In addition, it can be confirmed that the position of the gear body 340 penetrating the long hole 311 is located on the rear lower side of the long hole 311.

Specifically, when the first cushion frame 310 is guided along the long hole 311 and moves forward, the gear body 340 is a second gear tooth 341 engaged with the first gear tooth 311a of the long hole 311. ), and the third cushion frame 330 is also rotated and tilted downward by the rotating gear body 340.

Accordingly, the seat 1 having a cushion interlocking structure changes the angle of the front end of the seat cushion according to the tilting motion of the seat cushion, thereby preventing the discomfort of the seated person's legs rising from the ground and the feet not touching the floor.

Figure 13 is a perspective view showing a seat having a cushion interlocking structure according to an embodiment of the present invention provided with a bending body and a movement control body, and Figure 14 is a plan view of Figure 13.

Referring to Figures 13 and 14, the seat 1 having a cushion interlocking structure according to an embodiment of the present invention may further include a curved body 500 and a movement adjusting body 600.

The curved body 500 is formed along the longitudinal direction at the middle of both sides of the cushion frame 300, and may have a curved surface.

Specifically, the curved body 500 may be formed at the middle of the outer surface of the first cushion frame.

Additionally, it is preferable that the curved surface of the curved body 500 is formed gently.

The movement control body 600 extends upward from the middle of the upper surfaces of both sides of the base frame 100, is bent in the direction of the curved body 500, and has a wedge 610 in contact with the curved surface on the surface facing the curved body 500. ) can be formed.

Specifically, the movement control body 600 may be formed on the upper surface of the first base plate 110.

Additionally, the wedge 610 is made of an elastic material such as silicone or rubber, and may be formed to be detachable from the movement control body 600.

Specifically, the wedge 610 has a fitting groove (not shown) formed on the other surface that contacts the curved body 500, and a fitting protrusion (not shown) is formed on the surface of the movement control body 600 where the wedge 610 is formed. It can be inserted through interference fit.

Accordingly, when the wedge 610 is worn due to friction in contact with the curved body 500, it can be easily replaced.

The seat 1 having a cushion interlocking structure is provided with a curved body 500 and a movement control body 600, thereby preventing the seat cushion from moving rapidly and achieving weight reduction compared to the application of the damper 400. Cost and maintenance costs can be reduced.

Figure 15 is a perspective view showing a curved portion formed by extending a long hole of a seat having a cushion interlocking structure according to an embodiment of the present invention, and Figure 16 is a perspective view showing the cushion frame of Figure 15.

Referring to Figures 15 and 16, the long hole 311 of the seat 1 having a cushion interlocking structure may extend rearward along the longitudinal direction of the cushion frame 300.

Specifically, the long hole 311 may extend rearward along the longitudinal direction of the first cushion plate 310.

At this time, it is preferable that the limiting plate 140 forms a large angular range over which the back frame 200 can rotate.

In addition, the long hole 311 may have curved portions 311b continuously formed along the inner longitudinal direction and corresponding to the shape of the outer peripheral surface of the fastening member.

Accordingly, the cushion frame 300 can slide further forward while maintaining the maximum tilting angle.

In addition, when the cushion frame 300 is sliding, the position of the cushion frame 300 can be fixed by being caught by the fastening member on the curved portion 311b of the long hole 311.

Specifically, when the seat is seated after sliding the cushion frame 300, the pressure formed on the lower side fixes the seat so that it does not move further, thereby preventing the angle and position of the seat from changing after seating.

The embodiments of the present invention described above are not implemented only through devices, but may also be implemented through devices for realizing functions corresponding to the configurations of the embodiments of the present invention, components included in the devices, etc., and such implementations can be easily implemented by an expert in the technical field to which the present invention belongs based on the description of the above-described embodiments.

In addition, although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements can also be made by those skilled in the art using the basic concept of the present invention defined in the following claims. It falls within the scope of invention rights.

1: Sheet with cushion interlocking structure
100: base frame
110: first base plate
120: second base plate
130: third base plate
131: first coupling hole
132: second coupling hole
140: limit plate
200: back frame
201: 1st link hole
202: 2nd link hole
300: Cushion frame
310: first cushion plate
311: Janghol
311a: first gear tooth
311b: bend part
312: Link projection
320: second cushion plate
330: Third cushion plate
340: gear body
341: 2nd gear tooth
400: damper
500: curved body
600: movement controller
610: wedge

Claims (6)

The front is formed in an open shape, and a pair of first coupling holes are formed on the upwardly bent surfaces of the inner surfaces of both front sides, and the rear sides of both sides are obliquely bent upward to form a pair of second coupling holes on the upper rear sides. base frame;
It is formed in a shape to support the back, a pair of first link holes are formed on both sides of the lower side, and a pair of second link holes are formed on the upper side of the first link hole so that the axis can be rotated in the second coupling hole. combined back frame and
A seating surface is formed, with long holes sloping forward and upward on both front sides, bent upward at the rear on both sides, and a pair of link protrusions that protrude in the form of a cylinder but are hollow on the inside on the outside of the rear upper surface. and a cushion frame in which the link protrusion and the first link hole are axially coupled so as to be rotatable,
A seat having a cushion interlocking structure, wherein the first coupling hole and the long hole are fastened by a fastening member, and the cushion frame is guided along the long hole and fastened to enable sliding movement.
According to clause 1,
The base frame is,
A seat having a cushion interlocking structure, characterized in that a limiting plate is formed by bending inward from both rear surfaces to limit the rotation angle of the back frame.
According to clause 1,
The seat having the cushion interlocking structure,
A seat having a cushion interlocking structure further comprising a pair of dampers provided on both inner surfaces of the base frame, the rear ends of which are coupled to both lower sides of the back frame.
According to clause 1,
The cushion frame is,
A pair of first cushion plates extending in the longitudinal direction, having the long hole formed with continuous first gear teeth at the front, and having the rear end bent upward to form the link protrusion on the outer side of the upper surface of the rear end;
a second cushion plate formed to connect rear inner sides of the pair of first cushion plates;
A third cushion plate formed on the front of the second cushion plate and extending forward, the rear end of which is bent upward;
It is formed on both sides of the rear surface of the third cushion plate, and a cylindrical protrusion is formed in the direction of the long hole to penetrate the long hole and the first coupling hole, and the first gear tooth is formed along the outer peripheral surface of the protrusion abutting the inner surface of the long hole. A seat having a cushion interlocking structure including a pair of gear bodies formed with second gear teeth that engage with.
According to clause 1,
The seat having the cushion interlocking structure,
A curved body formed along the longitudinal direction at both ends of the cushion frame and having a curved surface, and
It extends upward from the middle of the upper surfaces of both sides of the base frame, is bent in the direction of the curved body, and has a cushion interlocking structure further comprising a movement adjuster having a wedge formed on a surface facing the curved body and abutting the curved surface. Sheet.
According to clause 1,
The Janghol,
A seat having a cushion interlocking structure, characterized in that it extends rearward along the longitudinal direction of the cushion frame and has a curved portion continuously formed along the inner longitudinal direction corresponding to the shape of the outer peripheral surface of the fastening member.