KR20020055657A - Vehicle seat having an active type table - Google Patents

Abstract

PURPOSE: A table operating in association with a vehicle seat back is provided to keep the horizontality by controlling an angle of the table through the movement in association with the seat back when a passenger of a front seat changes the angle of the seat back. CONSTITUTION: A table operating in association with a vehicle seat back includes a first gear(30) mounted to an end of the table, a second gear(32) mounted at an end of an operation rod and a seat back(4) under engagement with the first gear, a cylinder(18) extended to the seat back longitudinally, a stopper(20) coupled with the operation rod for slidingly moving along the cylinder vertically, and a cable(14) of which an upper end is connected to the stopper and a lower end is fixed to a hinge mounting part of a hinge(10) at a lower part of the seat back.

Description

Seat back linkage table of vehicle {VEHICLE SEAT HAVING AN ACTIVE TYPE TABLE}

The present invention relates to a seat back linked table of a vehicle, and more particularly, to adjust the angle of the seat back to the front seat passengers to their body shape in the seat is provided with a table in the seat back to provide convenience to the rear seat passengers In this case, it relates to a seat back linked table of the vehicle to keep the horizontal state at all times by adjusting the angle of the table in conjunction with the seat back.

In general, a vehicle is provided with a front seat and a rear seat, and a multi-row vehicle such as an RV vehicle is provided with more rows of seats. These seats consist of a seat cushion, which is a part where the occupant sits, and a seat back, which is a part of which the back is leaned. In some cases, a headrest that can rest against the head and rest above the seat back is provided to be pulled upward. In particular, in the case of a multi-seater vehicle, a table having a structure as shown in FIG. 1 may be foldably mounted on the rear of the seat back to provide convenience to the rear seat passenger.

That is, the seatback 4, which is a part where the passenger sits on the seat cushion 2 and leans back, is provided with a table 6 which is lifted and lowered by the gas lifter 8, so that the passenger sitting in the rear seat is 6) You can put things on top or open a book and read.

In the case of the conventional seatback table having such a configuration, if the front seat passenger moves the seatback back and forth according to his or her body shape, the object placed on the table may fall on the floor of the vehicle while moving or descending the table positioned in the horizontal state. There is a hassle to reset the angle of the table again.

The present invention for solving the above problems, when the front passenger adjusts the angle of the seat back to their body shape, in conjunction with the seat back to adjust the angle of the table, the seat back interlock of the vehicle can always maintain a horizontal state The purpose is to provide a table.

1 is a side view showing a conventional seatback table structure,

Figure 2 is a side view showing a seat back linked table structure of the present invention,

3 is a cross-sectional view taken along the line III-III in FIG.

4 is an enlarged view of part IV of FIG. 2;

5 is a view illustrating an operation process of the seatback-linked table according to the present invention, FIG. 5A is a normal state, FIG. 5B is a state in which the seatback is inclined forward, and FIG. 5C is a state in which the seatback is folded backward.

Explanation of symbols for main parts of the drawings]

2: seat cushion 4: seat back

6: Table 8: Gas Lifter

10: hinge 14: cable

16: Bracket 18: Cylinder

20: stopper 22: working rod

24: Return spring 30, 32: 1st, 2nd gear

A seatback linkage table of a vehicle according to the present invention for achieving the above object is a seatback table of a vehicle that is foldably mounted to the rear of the seatback that the passenger leans back by the gas lifter, mounted on one end of the table A first gear, a second gear mounted to one end of the actuating rod and installed in the seatback in engagement with the first gear, a cylinder extending in the longitudinal direction to the seatback, and sliding up and down along the cylinder. And a stopper coupled to the actuating rod, and an upper end connected to the stopper and a lower end fixed to a hinge mounting part of the seatback lower end.

Hereinafter, a seat back linked table of a vehicle according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 2 to 5. In addition, the same parts as the structure of the general sheet described in FIG. 1 are denoted by the same numerals.

Figure 2 is a side view showing a seat back linked table structure of the present invention, Figure 3 is a cross-sectional view taken along the line III-III in Figure 2, Figure 4 is an enlarged view of section IV of FIG.

As shown in these figures, the front seat passenger automatically adjusts the installation angle of the table as the seat back 4 is pulled forward or flipped back to provide convenience for the rear seat passenger by keeping the table 6 horizontal at all times. As a solution for this, in the preferred embodiment of the present invention, a table structure having gears 30 and 32 together with the stopper 20 and the actuating rod 22 operated by the cable 14 is illustrated.

To this end, in order to allow the cable 14 to be pulled together with the rotation of the seatback 4 to the hinge mounting portion 10a at the bottom of the seatback, the lower end of the cable 14 using fixing means 12 such as screws or bolts. Is fixed. Therefore, when the front passenger swings the seat back 4 forward, the cable 14 fixing means 12 pulls the cable 14 downward while moving in the direction of the arrow as shown in FIG. The seat back 4 is rotated about the hinge 10 fixed to the bracket 16. The upper end of the cable 14 is connected to the lower end of the stopper 20.

The stopper 20 is coupled to the actuating rod 22 so as to slide up and down along the cylinder 18 extending in the longitudinal direction to the seatback 4. One end of the operating rod 22 is mounted with a second gear 32, and the table 6 is equipped with a first gear 30 arranged in engagement with the second gear 32. As shown in FIG.

On the other hand, the return spring 24 for pressurizing the stopper 20 upward is further provided in the cylinder 18. The return spring 24 serves to press the stopper 20 upward when the seatback 4 is flipped back to return to its original position. However, when the table 6 is raised by the gas lifter 8 and the stopper 20 can be sufficiently raised via the first and second gears 30 and 32 and the operating rod 22, the embodiment The return spring 24 employed may be omitted.

The first gear 30 and the second gear 32 of the present invention are set to have a gear ratio capable of maintaining the horizontal state of the table 6 in proportion to the rotational angle of the seat back 4. Therefore, even if the front passenger places the seat back 4 at any angle, the table 6 is always rotated by rotating the first gear 30 and the second gear 32 in proportion to the rotation angle of the seat back 4. Can keep level.

Next, Figure 5 illustrates the operation of the seat-back linked table according to the present invention, Figure 5a is a normal state, Figure 5b is a state in which the seatback is inclined forward, Figure 5c is a view showing a state in which the seatback is flipped backward to be.

First, FIG. 5A shows a state in which the rear seat passenger's table 6 is set approximately horizontally in accordance with its riding position in a normal state, in which the stopper 20 is disposed at an intermediate point in the cylinder 18.

In this state, when the front passenger tilts the seatback 4 forward, the seatback 4 rotates about the hinge 10 while the hinge mounting portion 10a is rotated together, and thereby, the cable 14 The puller 20 moves downward along the inner wall of the cylinder 18 as it is pulled out. Therefore, as the operating rod 22 is rotated, the second gear 32 is rotated, and the rear end of the table 6 is lowered while the first gear 30 is rotated together by the rotation of the second gear 32. Let's go. At this time, since the gear ratio of the first gear 30 and the second gear 32 is set to interlock in proportion to the rotational angle of the seat back 4, the table 6 can maintain the horizontal state as it is.

On the contrary, when the front passenger seats the seat back 4, the pulled cable 14 is released and the stopper 20 is raised by the pressure of the return spring 24, so that the operating rod 22 and The rear end of the table 6 is raised as shown in FIG. 5C through the first gear 30 and the second gear 32. At this time, since the gear ratio of the first gear 30 and the second gear 32 is set to interlock in proportion to the rotation angle of the seat back 4, the table 6 maintains the horizontal state.

According to the present invention described above, when the front seat passenger adjusts the angle of the seat back according to his body shape, it is possible to maintain the horizontal state at all times by adjusting the angle of the table in conjunction with the seat back. In addition, when the seatback is folded forward in case of a sudden reduction or a crash, the table may also be folded together with the seatback to protect the rear seat passenger.

Claims (3)

A seatback table for a vehicle that is foldably mounted to the rear of a seatback where a passenger lifts his back by a gas lifter, A first gear 30 mounted at one end of the table 6, A second gear 32 mounted to one end of the operating rod 22 and installed in the seat back 4 in a state of being engaged with the first gear 30; A cylinder 18 extending in the longitudinal direction to the seat back 4, A stopper 20 coupled to the actuating rod 22 so as to slide up and down along the cylinder 18; The upper end is connected to the stopper 20, and the lower end of the seat back linked table of the vehicle, characterized in that it comprises a cable (14) fixed to the hinge mounting portion (10a) of the lower seat back. The method of claim 1, The seat 18 linked table of the vehicle, characterized in that further provided with a return spring 24 for pressing the stopper 20 upward in the cylinder (18). The method of claim 1, The first gear 30 and the second gear 32 has a gear ratio that can maintain the horizontal state of the table 6 in proportion to the rotation angle of the seat back (4) Type table.