KR102605705B1 - Reclining vehicle seat - Google Patents

Abstract

The disclosed reclining vehicle seat includes a buttock support portion that supports the buttocks of a seated person; Connection parts connected to both left and right sides of the hip support; A backrest portion that supports the back of the seated person and has both left and right sides rotatably coupled to the connection portion about the first hinge axis; and the upper part is rotatably coupled to the backrest, so that when the buttock support and the connection move forward, the backrest is pulled so that the backrest rotates about the first hinge axis in a direction in which the backrest unfolds with respect to the buttock support, and when the buttock support and the connection retract, the backrest is pulled. It includes a reclining link that pushes the backrest to rotate in a folding direction with respect to the hip support about the first hinge axis.

Description

Reclining vehicle seat {RECLINING VEHICLE SEAT}

The present invention relates to a vehicle seat, and more specifically, to a reclining vehicle seat having a reclining function in which the seat backrest is tilted backward.

A vehicle seat is installed in the vehicle's passenger space so that passengers can sit. A person sitting in a vehicle seat may want to rest comfortably by leaning against the vehicle seat while the vehicle is running. If a car seat is equipped with a reclining function that tilts the backrest backwards, it can be of great help to the occupants' comfortable rest.

However, conventional vehicle seats do not have a reclining function, or even if there is a reclining function, there is a problem in that it is difficult to operate the reclining function to implement the reclining function while the vehicle occupant is sitting on the vehicle seat. Meanwhile, there are vehicle seats configured to implement a reclining function using the power of an electric motor, but the configuration is complicated, the manufacturing cost is high, and malfunctions and breakdowns occur frequently, leading to low reliability of quality.

The background technology for the present invention is disclosed in Republic of Korea Patent Publication No. 10-1816680 (registered on January 3, 2018, title of invention: Reclining device for vehicle seats).

The present invention is intended to improve the above problems, and provides a reclining vehicle seat in which a reclining motion in which the backrest tilts backward in conjunction with the motion in which the buttock support moves forward is implemented.

The present invention includes a buttock support portion that supports the buttocks of a seated person; Connection parts connected to both left and right sides of the hip support unit; a backrest portion that supports the back of the seated person and whose left and right sides are rotatably coupled to the connection portion about a first hinge axis; and the upper portion is rotatably coupled to the backrest, so that when the buttock support and the connection portion advance, the backrest rotates about the first hinge axis in a direction in which the backrest unfolds with respect to the buttock support, and the buttock support. and a reclining link that pushes the backrest so that when the connection unit retracts, the backrest rotates about the first hinge axis in a folding direction with respect to the hip support.

The reclining vehicle seat of the present invention further includes a guide rail that slideably supports the hip support portion and the connection portion so that the connection portion advances and retracts, and the lower portion of the reclining link rotates on the guide rail. Possibly combined.

The backrest portion includes a folding latch rotatably coupled to the connection portion about the first hinge axis; and a backrest frame rotatably coupled to the folding latch about a second hinge axis.

The backrest frame may rotate about the second hinge axis between a folding position in which the backrest frame is folded overlapping with respect to the hip support unit and an unfolding position in which the backrest frame is erected without being folded with respect to the hip support unit.

The folding latch includes an arm plate rotatably coupled to the connection portion about the first hinge axis, and the backrest frame rotatably coupled to the connection portion about the second hinge axis; a rotating plate that rotates around the second hinge axis together with the backrest frame; and a lock plate that selectively blocks the rotation plate to prevent the backrest frame from rotating from the unfolded position to the folded position.

The arm plate may be provided with a stopper that limits the angle at which the rotation plate rotates around the second hinge axis.

The second hinge axis may be located higher than the first hinge axis.

The connection portion includes a pair of side frames coupled to both left and right sides of the backrest portion; and a pair of tip-up brackets, one side of which is rotatably coupled to the pair of side frames about a third hinge axis, and the other side of which is coupled to both left and right sides of the hip support portion. It can be provided.

The third hinge of the hip support is between a tip-up posture in which the front end of the buttock support is raised and retracted, and a tip-down posture in which the front end of the hip support moves forward while descending from the tip-up posture. It can rotate around its axis.

The reclining vehicle seat of the present invention may further include a tip-up operation lever for selectively fixing at least one of the pair of tip-up brackets so that the hip support portion is stopped in the tip-up position or the tip-down position.

In the reclining vehicle seat of the present invention, when the seated person is seated and the hip support is advanced, the backrest tilts backward, and when the buttock support is retracted, the backrest returns to its original position. Accordingly, the seated person can rest comfortably by leaning against the backrest, and discomfort and resulting fatigue while riding in the vehicle can be prevented.

According to a preferred embodiment of the present invention in which the backrest is folded, when the backrest is upright, the occupants of the vehicle can sit, and when the backrest is folded, the space inside the vehicle can be used as needed, such as by placing a load on it or the occupant lying down. It can be used efficiently.

According to a preferred embodiment of the present invention in which the buttock support is tipped up, the load can be placed in the space in front of the backrest formed by tipping up the buttock support as needed, so more load can be efficiently loaded inside the vehicle as needed. You can.

1 and 2 are a perspective view and a side view showing a reclining vehicle seat according to an embodiment of the present invention, and are shown in a non-reclining state.
Figure 3 is a side view showing the reclining vehicle seat of Figures 1 and 2 in a reclining state.
Figure 4 is an exploded perspective view showing the folding latch of Figures 1 and 2 disassembled.
Figure 5 is a side view showing the reclining vehicle seat of Figures 1 and 2 in a folded state.
FIGS. 6 and 7 are side views of the folding latch of FIG. 5 in an assembled state. FIG. 6 is a view showing the backrest frame in an unfolded state, and FIG. 7 is a view showing the backrest frame in a folded state.
Figures 8 and 9 are side views sequentially showing the tip-up operation of the reclining vehicle seat of Figures 1 and 2, Figure 9 is a diagram showing a state in which the tip-up operation lever is pressed; This is a diagram showing the hip support portion being tipped up and fixed.

Hereinafter, a reclining vehicle seat according to an embodiment of the present invention will be described in detail with reference to the attached drawings. The terminology used in this specification is a term used to appropriately express preferred embodiments of the present invention, and may vary depending on the intention of the user or operator or the customs of the field to which the present invention belongs. Therefore, definitions of these terms should be made based on the content throughout this specification.

1 and 2 are a perspective view and a side view showing a reclining vehicle seat according to an embodiment of the present invention in a non-reclining state, and FIG. 3 is a view showing the reclining vehicle seat of FIGS. 1 and 2 in a reclining state. This is a side view showing. Referring to Figures 1 to 3, the reclining vehicle seat 10 according to an embodiment of the present invention is installed in the riding space of the vehicle so that the vehicle's occupants can sit, and includes a hip support portion 11 and a backrest portion 20. , a head rest portion 97, a connecting portion 70, a pair of guide rails 88, a tip up operation lever 90, and a pair of reclining links. )(100).

The buttock support portion 11 supports the buttocks of the seated person. The hip support portion 11 includes a cushion frame 12 and a pair of frame holders 15. Although not shown, the hip support portion 11 may further include a cushion supported by the cushion frame 12. The cushion frame 12 has a substantially square shape, and a pair of frame holders 15 are fixed to both left and right sides of the cushion frame 12, one by one.

The connection portion 70 is connected to both left and right sides of the hip support portion 11. The connection portion 70 includes a pair of side frames 71, a pair of tip-up brackets 80, and a pair of slide rails 87. A pair of side frames 71 are disposed on both left and right sides of the hip support portion 11. One side of the pair of tip-up brackets 80 is rotatably coupled to a pair of side frames 71, and the other side is attached to both left and right sides of the buttock support portion 11, specifically a pair of frame holders 15. is fixedly coupled to.

The backrest 20 supports the back of the seated person, and both left and right sides are rotatably coupled to the connection portion 70 about the first hinge axis AX1. The backrest portion 20 includes a backrest frame 21 and a pair of folding latches 30. The backrest frame 21 has a roughly square shape, and includes a pair of side plates 25 symmetrically disposed on both left and right sides, and both ends in the longitudinal direction are joined to the upper ends of the pair of side plates 25. It is provided with an upper bar 22 and a lower bar 23 with both ends in the longitudinal direction joined to the lower ends of a pair of side plates 25. Although not shown, the backrest portion 20 may further include a backrest cushion supported by the backrest frame 21.

The pair of folding latches 30 has a lower end rotatably coupled to the connection portion 70, specifically a pair of side frames 71, about the first hinge axis AX1, and an upper end connected to the second hinge axis ( It is rotatably coupled to the backrest frame 21, specifically the lower portion of the pair of side plates 25, around AX2). The second hinge axis (AX2) is located higher than the first hinge axis (AX1). A pair of folding latches 30 and a pair of side frames 71 are coupled by a pair of reclining hinge pins 60 extending along the first hinge axis AX1, and a pair of The folding latch 30 and the pair of side plates 25 are coupled by a pair of folding hinge pins 61 extending along the second hinge axis AX2. The head rest portion 97 supports the head of the seated person and is coupled to the upper end of the backrest portion 20.

A pair of guide rails 88 slideably supports the hip support portion 11 and the connecting portion 70 so that the connecting portion 70 advances and retreats. A pair of guide rails 88 are fixedly coupled to the vehicle body. A pair of side frames 71 each has an upper part 72 formed with a hinge pin through hole 73 into which the reclining hinge pin 60 is fastened, and a lower part formed integrally below the upper part 72 and extending in the front-back direction. (77) is provided.

The lower portion 77 of the pair of side frames 71 is fixedly coupled to a pair of slide rails 87 extending in the front and rear directions. A pair of slide rails 87 are slidably coupled to a pair of guide rails 88. Accordingly, the pair of slide rails 87 can move back and forth along the extension direction of the pair of guide rails 88.

Although not shown, the reclining vehicle seat 10 further includes a movement operation lever that can manipulate the slide rail 87 to move or stop by sliding with respect to the guide rail 88. Accordingly, when the seated person pushes the buttock support portion 11 forward or backward while pulling the movement operation lever, the buttock support portion 11 and the connecting portion 70 move forward or backward along the pair of guide rails 88, and the seated person If the movement operation lever is not pulled, the hip support portion 11 and the connecting portion 70 stop at the moved positions.

A pair of reclining links 100 includes a backrest 20, specifically an upper end rotatably coupled to a pair of folding latches 30 and a rear end rotatably coupled to a pair of guide rails 88. Equipped with To elaborate, the upper end of each reclining link 100 is rotatably coupled to each folding latch 30 by a folding hinge pin 61 about the second hinge axis AX2. A hinge pin coupling bracket 89 is formed at the rear end of each guide rail 88, and the lower end of each reclining link 100 is rotatable to each guide rail 88 by the link pin 103. are combined.

The lower end of the reclining link 100 cannot move in the forward and backward direction with respect to the guide rail 88. When the lower part of the reclining link 100 rotates around the link pin 103, the upper part of the reclining link 100, specifically the folding hinge pin 61, rotates along a circular orbit around the link pin 103. .

Accordingly, when the hip support portion 11 and the connecting portion 70 are moved forward by the seated person from the original position shown in FIG. 2 to the forward position shown in FIG. 3, the backrest portion 20 moves along the first hinge axis AX1 ) A pair of reclining links 100 pull the backrest 20 back so that it rotates in the unfolding direction with respect to the buttock support 11. To elaborate, the upper bar 22 of the backrest portion 20 and the head rest portion 97 retreat from their original positions.

Conversely, when the hip support portion 11 and the connecting portion 70 are moved backward from the forward position shown in FIG. 3 to the original position shown in FIG. 3 by the seated person, the backrest portion 20 moves along the first hinge axis AX1. A pair of reclining links 100 push the backrest 20 forward so that it rotates in the folding direction with respect to the buttock support 11. To elaborate, the upper bar 22 of the backrest 20 and the head rest 97 move forward and return to their original positions from the retracted positions.

Figure 4 is an exploded perspective view showing the folding latch of Figures 1 and 2, Figure 5 is a side view showing the reclining vehicle seat of Figures 1 and 2 in a folded state, and Figures 6 and 7 is a side view of the folding latch of FIG. 5 in an assembled state, FIG. 6 is a view showing the backrest frame in an unfolded state, and FIG. 7 is a view showing the backrest frame in a folded state.

1, 4 to 7, the pair of folding latches 30 each includes an arm plate 31, a rotating plate 45, and a lock plate 52. ), and is provided with an inner plate (57). The arm plate 31 has a lower portion rotatably coupled to the side frame 71 of the connecting portion 70 about the first hinge axis AX1, and the backrest frame 21, specifically the lower portion of the side plate 25. It has an upper part rotatably coupled around a second hinge axis (AX2).

To elaborate, the arm plate (31) is secured by a reclining hinge pin (60) that passes through the hinge pin hole (33) formed in the lower part of the arm plate (31) and the hinge pin hole (73) formed in the upper part of the side frame (71). 31) is rotatably coupled to the side frame 71, and is connected to the hinge pin through hole 35 formed in the upper part of the arm plate 31 and the folding hinge pin 61 fastened through the lower part of the side plate 25. The side plate 25 is rotatably coupled to the arm plate 31.

The rotation plate 45 rotates around the second hinge axis AX2 together with the side plate 25 of the backrest frame 21. A hinge pin coupling hole 46 is formed in the rotating plate 45 through which the folding hinge pin 61 is fastened. Accordingly, the rotation plate 45 can rotate with respect to the arm plate 31 about the second hinge axis AX2.

A guide pin coupling aperture 47 is formed in the rotating plate 45 at a position spaced apart from the hinge pin coupling aperture 46. The folding guide pin 62 passes through the guide pin coupling hole 47 and the lower part of the side plate 25 and is fastened to the rotating plate 45 and the side plate 25. Accordingly, the side plate 25 rotates together with the side plate 25 around the second rotation axis AX2.

The arm plate 31 has a guide hole 40 extending in the arc direction so that the folding guide pin 62 can move along a circular orbit centered on the second hinge axis AX2 while penetrating the arm plate 31. ) is formed. The folding guide pin 62 can reciprocate within the guide hole 40 in the longitudinal direction of the guide hole 40. The arm plate 31 protrudes in a radial direction centered on the second hinge axis AX2 from the dead end 42, which is the longitudinal end of the guide long hole 40, and the entrance of the guide long hole 40. It is provided with a protrusion 43.

The dead end 42 is a direction in which the backrest frame 21 is unfolded with respect to the buttock support 11 about the second hinge axis AX2 in the unfolding position as shown in FIGS. 1 and 6. That is, it becomes an unfolding stopper that limits the rotation angle so that the upper bar 22 does not rotate excessively in the retreating direction. In other words, the folding guide pin 62 is blocked by the unfolding stopper 42, so that the rotation plate 45 and the backrest frame 21 can rotate in the unfolded direction with respect to the buttock support 11 in the unfolded position. There will be no more.

The protrusion 43 is further folded with respect to the buttock support 11 around the second hinge axis AX2 in the folded position as shown in FIGS. 5 and 7 of the backrest frame 21, That is, it becomes a folding stopper that limits the rotation angle so as not to rotate excessively in a direction that approaches the buttock support portion 11. In other words, the folding guide pin 62 is blocked by the folding stopper 43, so that the rotation plate 45 and the backrest frame 21 cannot rotate in a further folded direction with respect to the buttock support portion 11 in the folded position.

The folding latch 30 further includes a stopper pin 64 fastened to the stopper pin hole 36 provided in front of the dead end 42 in the arm plate 31. In addition to the dead end 42, the stopper pin 64 serves as another unfolding stopper that additionally restricts the backrest frame 21 from rotating in the unfolded direction in the unfolded position. As shown in FIGS. 1 and 6, in the unfolded position in which the backrest frame 21 is erected, the front edge of the rotation plate 45 is in close contact with the stopper pin 64, so the rotation plate 45 and the backrest frame 21 ) cannot rotate in the unfolding direction with respect to the buttock support portion 11 in the unfolded position.

The inner plate 57 is disposed on the inside of the side plate 25 so that the side plate 25 is reliably coupled to the arm plate 31. The arm plate 31 is disposed outside the side plate 25. A folding hinge pin (61) is fastened to the inner plate (57) by penetrating the hinge pin coupling hole (46) of the rotating plate (45), the hinge pin hole (35) of the arm plate (31), and the side plate (25). The hinge pin through hole 58 and the folding guide pin 62 penetrate the guide pin coupling hole 47 of the rotating plate 45, the guide long hole 40 of the arm plate 31, and the side plate 25. A guide pin through hole 59 that is fastened is formed. Accordingly, the inner plate 57 rotates around the second hinge axis AX2 together with the side plate 25 like the rotation plate 45.

As mentioned above, through the configuration in which the arm plate 31, the rotation plate 45, and the side plate 45 are linked, the backrest frame 21 is connected to the buttock support portion 11 as shown in FIGS. 5 and 7. It is rotatable about the second hinge axis AX2 between an overlapping folded posture and an unfolded posture standing up without being folded relative to the hip support 11 as shown in FIGS. 1 and 6 .

The lock plate 52 selectively blocks the rotation plate 45 to prevent the backrest frame 21 from rotating from the unfolded position to the folded position. The lock hinge pin 63 is fastened by passing through the hinge pin hole 53 formed in the lock plate 52 and the hinge pin hole 37 formed at the rear end of the arm plate 31. Accordingly, the lock hinge pin 63 is supported on the arm plate 31 so that it can rotate around the lock hinge pin 63.

The lock plate 52 has a hook 54 protruding forward and a lever connection protrusion 55 protruding in a direction intersecting the hook 54. The rotating plate 45 further includes a locking protrusion 49 provided on the front to be spaced apart from the guide pin coupling hole 47, and a hook receiving groove is provided between the guide pin coupling aperture 47 and the locking protrusion 49. (48) is formed. Although not shown, the lever connection protrusion 55 is connected to the folding operation lever by a connecting means such as a cable wire. The lock plate 52 may be elastically biased to rotate about the lock hinge pin 63 in the direction in which the hook 54 rises.

As shown in FIGS. 1, 2, and 6, in the unfolded position in which the backrest frame 21 is erected, the hook 54 is accommodated by being inserted into the hook receiving groove 48. In this case, the locking jaw 49 is blocked by the end of the hook 54 so that the rotating plate 45 and the side plate 25 of the backrest frame 21 connected thereto rotate in the folding direction with respect to the buttock support portion 11. I can't. Accordingly, the backrest frame 21 is locked to prevent folding.

Meanwhile, when the occupant of the vehicle pulls the folding operation lever, the lock plate 52 is centered on the lock hinge pin 63 so that the hook 54 moves downward as shown by the chain two-dot line in FIG. 6 and the solid line in FIG. 7. rotates to As a result, the locking protrusion 49 is not blocked by the hook 54. That is, the locking of the backrest frame 21 is released. At this time, when the passenger pushes the backrest frame 21 forward, the backrest frame 21 is folded as shown in FIGS. 5 and 7. If the passenger does not pull the folding operation lever after the backrest frame 21 is folded, the lock plate 52 may be elastically restored so that the hook 54 rises.

When the passenger pulls the backrest frame (21) in the folded position back, the rotation plate (45) and the backrest frame (21) rotate around the second hinge axis (AX2), and the folding guide pin (62) moves through the guide hole (40). Since the hook 54 is pushed downward as it moves forward, the unfolding operation of the backrest frame 21 is not hindered by the hook 54. As shown in FIG. 6, when the backrest frame 21 is again in the unfolding position, the lock hinge pin 63 rises again by elastic force so that the hook 54 is inserted into the hook receiving groove 48, so that the backrest frame 21 ) is locked again in the unfolding position. Meanwhile, although not shown, the folding latch 30 does not expose the rotation plate 45 and may further include an outer plate coupled to the arm plate 31 to protect the rotation plate 45.

Figures 8 and 9 are side views sequentially showing the tip-up operation of the reclining vehicle seat of Figures 1 and 2, Figure 9 is a diagram showing a state in which the tip-up operation lever is pressed; This is a diagram showing the hip support portion being tipped up and fixed. Referring to FIGS. 1, 2, 8, and 9, the pair of tip-up brackets 80 are rotatable about the third hinge axis AX3 at the upper portion 72 of the pair of side frames 71. ) is combined with. To elaborate, the tip-up hinge protrusion 74 formed on the upper part 72 of the side frame 71 extending along the third hinge axis AX3 penetrates the tip-up bracket 80 and is fastened thereto. The third hinge axis AX3 may be provided in front of the first hinge axis AX1 and parallel to the first hinge axis AX1.

Accordingly, the hip support portion 11 is in a tip-up posture in which the front end, specifically the front end 13 of the cushion frame 12, rises and retreats as shown in FIG. 9, and the front end 13 shown in FIG. 8 As shown, the front end 13 can rotate around the third hinge axis AX3 between the tip-down posture in which the front end 13 moves forward while descending from the tip-up posture. In the tip-down position, the height difference between the front end (13) and the rear end (14) of the cushion frame 12 is small, but in the tip-up position, the height difference between the front end (13) and the rear end (14) becomes significantly larger.

The tip-up operation lever 90 selectively fixes one of the pair of tip-up brackets 80 so that the hip support unit 11 is stopped in the tip-up position or the tip-down position. The tip-up operation lever 90 extends in the front and rear directions and is rotatably coupled to one of the pair of side frames 71. To elaborate, the lever hinge protrusion 75 formed at the rear end of the side frame 71 to extend parallel to the tip-up hinge protrusion 74 is fastened through the tip-up operation lever 90.

The tip-up operating lever 90 has a handle portion 91 at the front end and a spring connection portion 94 at the rear end. When the rider presses down on the handle portion 91, the tip-up operation lever 90 is centered around the lever hinge protrusion 75 so that the handle portion 91 descends and the spring connection portion 94 rises, as shown by the solid line in FIG. 8. ) rotates. A spring (not shown) is connected to the spring connection portion 94 to elastically pressurize the tip-up operation lever 90 so that the handle portion 91 rises and returns to its original position. Therefore, when the rider no longer presses the handle portion 91 down, the tip-up operation lever 90 returns to the original position in which the handle portion 91 is raised, as shown by a dotted line in FIG. 8 and a solid line in FIG. 9. do.

Among the pair of tip-up brackets (80), the tip-up bracket (80) adjacent to the tip-up operation lever (90) has a tip-down locking protrusion (83) and a tip-up locking protrusion (84) protruding toward the tip-up operation lever (90). . The tip-down locking protrusion 83 is provided at the lower end of the tip-up bracket 80, and the top-up locking protrusion 84 is provided at the rear end of the tip-up bracket 80.

A protrusion fitting groove 92 that is open upward is formed between the handle portion 91 and the spring connection portion 94 of the tip-up operation lever 90. As shown in FIG. 8, when the buttock support portion 11 is in the tip-down position, the tip-down locking protrusion 83 is fitted into the protrusion fitting groove 92. Accordingly, the pair of tip-up brackets 80 do not rotate about the third hinge axis AX3 and the hip support portion 11 is fixed in the tip-down position.

Meanwhile, as shown in FIG. 9, when the hip support portion 11 is in the tip-up position, the tip-up locking protrusion 84 is inserted into the protrusion fitting groove 92. Accordingly, the pair of tip-up brackets 80 do not rotate about the third hinge axis AX3 and the hip support portion 11 is fixed in the tip-up position.

Meanwhile, when the rider pushes down on the handle portion 91, the protrusion fitting groove 92 moves downward and the tip-down locking protrusion 83 or tip-up locking protrusion 84 is separated from the protrusion fitting groove 92. In this state, the rider can lift the buttock supporter 11 upward to change from the tip-down position to the tip-up position, or lower the buttock supporter 11 to change from the tip-up position to the tip-down position. If the rider does not press the handle part 91 after the posture of the buttock support part 11 is changed, the protrusion fitting groove 92 of the tip-up operation lever 90 rises to its original position and becomes the tip-down locking protrusion 83 or the tip-up locking protrusion. Since the protrusion 84 is fitted again into the protrusion fitting groove 92, the buttock support portion 11 is fixed in the changed posture.

In the reclining vehicle seat 10 described above, when the seated person moves the buttock support 11 forward, the backrest 20 tilts backward, and when the buttock support 11 is retracted, the backrest 20 returns to its original position. do. Accordingly, the seated person can rest comfortably by leaning against the backrest portion 20, and inconvenience and resulting fatigue while riding in the vehicle can be prevented.

In addition, in the unfolding position with the backrest 20 upright, the occupants of the vehicle can sit, and in the folding position with the backrest 20 folded, space inside the vehicle is required, such as placing a load on the backrest 20 or having the occupant lie down. It can be used efficiently.

Additionally, if necessary, the buttock support part 11 can be changed to the tip-up position and the load can be placed in the space in front of the backrest part 20 formed by this, so that more baggage can be efficiently loaded inside the vehicle as needed.

The present invention has been described with reference to an embodiment shown in the drawings, but this is merely illustrative, and those skilled in the art will recognize that various modifications and other equivalent embodiments are possible therefrom. You will understand. Therefore, the true scope of protection of the present invention should be determined only by the appended claims.

10: Reclining vehicle seat 11: Hip support
12: Cushion frame 20: Backrest part
21: backrest frame 25: side plate
30: folding latch 31: arm plate
45: rotation plate 52: lock plate
57: inner plate 70: connection part
71: Side frame 80: Tip-up bracket
87: slide rail 88: guide rail
90: Tip-up operation lever 100: Reclining link

Claims (10)

a buttock support portion that supports the buttocks of the seated person;
Connection parts connected to both left and right sides of the hip support unit;
a backrest portion that supports the back of the seated person and whose left and right sides are rotatably coupled to the connection portion about a first hinge axis; and
The upper part is rotatably coupled to the backrest, and when the buttock support and the connecting portion advance, the backrest is pulled so that the backrest rotates about the first hinge axis in an unfolding direction with respect to the buttock support, and the buttock support and A reclining link that pushes the backrest so that when the connection unit retracts, the backrest rotates about the first hinge axis in a folding direction with respect to the hip support,
The backrest part,
a folding latch rotatably coupled to the connection portion about the first hinge axis; and
A reclining vehicle seat comprising a backrest frame rotatably coupled to the folding latch about a second hinge axis.
According to claim 1,
The reclining vehicle seat,
It further includes a guide rail that slideably supports the hip support portion and the connection portion so that the connection portion advances and retracts,
A reclining vehicle seat, characterized in that the lower portion of the reclining link is rotatably coupled to the guide rail.
delete According to claim 1,
The backrest frame is rotatable about the second hinge axis between a folding position in which the backrest frame is overlapped with respect to the hip support and an unfolding position in which the backrest frame is erected without being folded with respect to the hip support. Sheet.
According to clause 4,
The folding latch is,
an arm plate rotatably coupled to the connection portion about the first hinge axis, and the backrest frame rotatably coupled to the connection portion about the second hinge axis;
a rotating plate that rotates around the second hinge axis together with the backrest frame; and
A reclining vehicle seat comprising a lock plate that selectively blocks the rotation plate to prevent the backrest frame from rotating from the unfolded position to the folded position.
According to clause 5,
The arm plate is a reclining vehicle seat, characterized in that it has a stopper that limits the rotation angle of the rotation plate about the second hinge axis.
According to claim 1,
A reclining vehicle seat, wherein the second hinge axis is located higher than the first hinge axis.
According to claim 1,
The connection part is,
a pair of side frames coupled to both left and right sides of the backrest; and
a pair of tip-up brackets, one side of which is rotatably coupled to the pair of side frames about a third hinge axis, and the other side of which is coupled to both left and right sides of the hip support portion; A reclining car seat characterized by:
According to clause 8,
The third hinge of the hip support is between a tip-up posture in which the front end of the buttock support is raised and retracted, and a tip-down posture in which the front end of the hip support moves forward while descending from the tip-up posture. A reclining vehicle seat characterized by being able to rotate around an axis.
According to clause 9,
A tip-up operation lever for selectively fixing at least one of the pair of tip-up brackets so that the hip support unit is stopped in the tip-up position or the tip-down position.

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