KR200302841Y1 - Folding device of seat back for vehicle - Google Patents

Abstract

The present invention improves the folding device for folding the seat back to achieve smooth operation while reducing the number of parts, thereby contributing to the user's convenience while reducing the quality and durability of the whole sheet and reducing production costs. A car seat back folding apparatus,

Operated by lever 33 on top of recliner 35, which consists of plate holder 31 for receiving reclining means such as lock gear and cam, upper bracket 32 and lever 33 for reclining operation. In configuring the seatback folding apparatus 30 is provided to;

The seat back folding apparatus 30 includes a front guide plate 36 and a rear guide plate 37 provided on an upper side bracket 32;

A folding plate 40 fixed to the seat back 38 in the front and rear guide plates 36 and 37;

The center MP of the folding plate 40 is fixed to the center MP1 of the front and rear guide plates 36 and 37 by a seat back 38 and a hinge 41;

A seat back hole 42 for fixing the seat back 38 to an edge of the folding plate 40;

An upper locking jaw 44 provided with a predetermined folding angle (a) so as to be in contact with a stop pin 43 provided on the front and rear guide plates 36 and 37 to limit the folding range; ;

Radially forming a lower locking jaw 45 for selecting folding and unfolding below the upper locking jaw 44;

On one side of the upper tooth bracket 32, the center is fixed to the hinge 47 via a return spring 46 of the torsion type for return, and is composed of a horizontal lever 48 and a vertical lever 49, and a folding plate. It characterized in that it comprises an operation cam 50 for controlling the 40.

Description

Seat back folding device for automobiles {Folding device of seat back for vehicle}

The present invention relates to a seat back folding apparatus for an automobile, and more particularly, to a seat back folding apparatus which is improved to enable seat back folding in conjunction with a reclining apparatus.

The seatback folding apparatus is a device for facilitating riding of rear passengers of a vehicle without a rear door such as a three door or a coupe vehicle by folding the seatback constituting the seat forward to be connected to the seat cushion.

Conventionally, a folding device has been developed and used to interlock with a recliner, and a representative example thereof will be described with reference to FIG. 6.

The folding device 1 of the prior art connects the middle bracket 4 hinged to the seat back bracket 3 for fixing the seat back to the seat bracket 2 fixed to the cushion frame, and to the seat bracket 2. The recliner 8 is composed of a sector gear 5, a lock gear 6, an actuating lever 7 and the like to adjust the angle of the seat back.

The folding means (9) for folding the seat back in conjunction with the recliner (8) in the middle bracket (4) is hinged to the hook bracket (10) fixed to the middle bracket (4) is the lower end of the seat back bracket (3) It is provided with a hook 12 for cracking down the fixing protrusion 11 provided in the.

The rear end of the hook 12 is configured to connect with the upper side of the operating rod 15 having an opening 14 for receiving the fixing pin 13 provided in the seat bracket (2).

In the prior art as described above, when the fixing pins provided on the seat bracket move within the opening of the operating rod, such as when the middle bracket moves upright and rearward by the operation of the operating lever, the folding is not performed and the middle bracket is moved forward. If it is inclined a lot, the working rod is pulled by the fixing pin and at the same time the hook is out of the fixing projections so that the seatback bracket fixing the seatback can be folded forward.

In the prior art as described above, the number of production processes is increased due to the large number of related parts for seatback folding, and a considerable cost is required to store and move a large number of parts, thus causing various costs.

Therefore, the present invention is designed to solve the above problems, by improving the folding device for folding the seat back to achieve a smooth operation while reducing the number of parts associated with the quality and durability of the entire sheet and production cost The purpose is to contribute to savings while also contributing to the user's benefit improvement.

1 is an exploded perspective view showing a seat back folding device for automobiles to which the technology of the present invention is applied.

Figure 2 is a front view of the coupling state before folding showing a seat back folding device for automobiles to which the technology of the present invention is applied.

FIG. 3 is a view illustrating an A portion of the seat back folding apparatus for automobiles applied to FIG. 2; FIG.

Figure 4 is a front view of the coupled state before folding showing a seat back folding device for automobiles to which the technology of the present invention is applied.

FIG. 5 is a view illustrating an area B of the seat back folding apparatus for automobiles applied to FIG. 4; FIG.

Figure 6 is a front configuration diagram showing a seat back folding device for a vehicle to which the prior art is applied.

* Description of the symbols used in the main parts of the drawings *

30; Folding device

35; Recliner

36; Front Guide Plate

37; Rear guide plate

38; Seatback

40; Folding plate

44; Upper jaw

45; Lower locking jaw

46; Return spring

48; Horizontal lever

49; Vertical lever

50; Working cam

Hereinafter, with reference to the accompanying drawings will be described the configuration and operation of the present invention for achieving the above object.

1 is an exploded perspective view showing a seat back folding device for automobiles to which the technology of the present invention is applied, FIG. 2 is a front view of a combined state before folding showing a seat back folding device for automobiles to which the technology of the present invention is applied, and FIG. Figure 4 is a view showing an A portion of the applied seat back folding device for automobiles, Figure 4 is a front view of the combined state before folding showing the seat back folding device for cars applied technology of the present invention, Figure 5 is a car seat back applied to Figure 4 The B part of the folding apparatus is taken out and described together as a figure.

The seatback folding apparatus 30 to which the technique of the present invention is applied is composed of a plate holder 31 for receiving a reclining means such as a lock gear and a cam, an upper tooth bracket 32, and a lever 33 for reclining operation. The upper side of the liner 35 is provided to operate by the lever 33.

The seat back folding apparatus 30 includes front and rear guide plates 36 and 37 on the upper bracket 32, and a seat back 38 inside the front and rear guide plates 36 and 37. The folding plate 40 is fixed and folded.

The center MP of the folding plate 40 fixes the center MP1 and the seatback 38 of the front and rear guide plates 36 and 37 with the hinge 41.

The edge of the folding plate 40 is radially connected to the seat back hole 42 for fixing the seat back 38 and the stop pins 43 provided on the front and rear guide plates 36 and 37 to be folded. An upper locking jaw 44 provided with a folding angle a of a predetermined range to limit the range, and a lower locking jaw 45 for selecting folding and unfolding below the upper locking jaw 44. Form.

The center is fixed to the hinge 47 via a torsion spring return spring 46 for returning to one side of the upper bracket 32 and is composed of a horizontal lever 48 and a vertical lever 49. It has a working cam 50 of the shape.

The horizontal lever 48 of the actuating cam 50 is connected to and separated from the lower engaging jaw 46 of the folding plate 40, and the vertical lever 49 is a lever 33 provided in the recliner 35. It is connected to the operation pin 51 is formed integrally with the upper end of the) to configure the folding and unfolding operation by the lever 33.

The present invention as described above,

When the initial state is viewed as the seat back 38 is not folded, the horizontal lever 48 of the actuating cam 50 is shaped to support the lower locking jaw 45 of the folding plate 40 and the upper locking jaw 44. One side of is in contact with the stop pin 43 formed on the front and rear guide plates (36,37) is in a state that the seat back 38 does not flow.

When folding the seat back 38 in such a state, the lever 33 of the recliner 35 is pulled in integrally with the lever 33 and connected to the vertical lever 49 of the operation cam 50. The actuating pin 51 which has been made is moved in the direction of the recliner 35.

Then, the actuation pin 51 releases the lower locking jaw 45 of the folding plate 40 that has been clamped so that the seatback 38 is folded forward due to its own weight, and at the same time the folding jaw 44 has the folding By folding only the range of the angle (a), the upper engaging jaw 44 on the other side is connected to the stop pin 43 so that no further folding is possible.

When the folding is completed as described above, the lever 33 is returned to its original position by releasing the lever 33, and at the same time, the actuating cam 50 is also positioned in the initial state by the return spring 46.

When the seat back 38 is folded and used, such as getting on and off the rear seat or loading the rear seat, the seat back 38 is held, and the seat back 38 is rotated to the rear (the original position). The folding state can be released.

This operation returns the seatback 38 so that the folding plate 40 returns to its original position, and at the same time, the lower locking jaw 45 rotates while pressing on the horizontal lever 48 of the operation cam 50, and then is pressed. As the horizontal lever 48 returns, the lower rim jaw 45 is intermittently re-locked to prevent the seatback 38 from flowing.

The present invention as described above improves the folding device for folding the seat back to achieve smooth operation while reducing the number of parts, thereby contributing to the user's convenience while reducing the overall sheet quality, durability and production cost. Various effects can be obtained, such as contribution.

Claims (2)

Operated by lever 33 on top of recliner 35, which consists of plate holder 31 for receiving reclining means such as lock gear and cam, upper bracket 32 and lever 33 for reclining operation. In configuring the seatback folding apparatus 30 is provided to; The seat back folding apparatus 30 includes a front guide plate 36 and a rear guide plate 37 provided on an upper side bracket 32; A folding plate 40 fixed to the seat back 38 in the front and rear guide plates 36 and 37; The center MP of the folding plate 40 is fixed to the center MP1 of the front and rear guide plates 36 and 37 by a seat back 38 and a hinge 41; A seat back hole 42 for fixing the seat back 38 to an edge of the folding plate 40; An upper locking jaw 44 provided with a predetermined folding angle (a) so as to be in contact with a stop pin 43 provided on the upper sides of the front and rear guide plates 36 and 37 to limit the folding range; ; Radially forming a lower locking jaw 45 for selecting folding and unfolding below the upper locking jaw 44; On one side of the upper tooth bracket 32, the center is fixed to the hinge 47 through a return type spring 46 for return, and is composed of a horizontal lever 48 and a vertical lever 49, and a folding plate. Car seat back folding apparatus comprising an operation cam (50) for controlling the (40). The method of claim 1; The horizontal lever 48 of the operation cam 50 intermittently folds the folding plate 40 in contact with and detaches from the lower locking jaw 46 of the folding plate 40; The vertical lever 49 is connected to the operating pin 51 formed integrally with the upper end of the lever 33 provided in the recliner 35 to control the folding and unfolding seat for automobiles, characterized in that .