KR0181849B1 - Angle adjusting device of seatback for a vehicle - Google Patents

Abstract

The present invention provides a convenience by controlling the angle of the seat back at a high speed at the time of stopping, by providing a convenience, and by adjusting the angle of the seat back slowly during driving for safe driving It relates to an angle adjusting device of the seat back, which is fixed to the side of the seat cushion (4), which is a seating part of the passenger, and has a horizontal bracket (14) to which a bearing seat (28) is attached, and a horizontal bracket ( 14 is fixed to the seat back (2) in a rotatable state with a vertical bracket (12) having a receiving groove (12a), and the end end 22 is inserted into the receiving groove (12a) of the vertical bracket 12 at one end It is provided with the other end is rotatably mounted by the bearing 32, the outer peripheral portion has a driven shaft 20, the first driven gear 24 and the second driven gear 26 is formed, one end bearing 38 The horizontal bracket (14) via The first driving gear (34) and the first meshed with the first driven gear (24) and the second driven gear (26) are mounted rotatably on (28) and the other end is provided with an adjustment lever (10). It consists of a drive shaft 30 in which two drive gears 36 are formed.

Description

Adjusting angle of car seat back

The present invention relates to a vehicle seat, and more particularly, by adjusting the angle of the seat back at a speed of two stages, while providing convenience by adjusting the angle of the seat back at a high speed when the vehicle is stopped, and at the same time, the angle of the seat back slowly while driving It relates to an angle adjusting device for a vehicle seat back that can promote safe driving by adjusting the.

In general, the floor of the vehicle is provided with a front seat and a rear seat for the driver and passenger to sit. Usually, the front seat of a vehicle employs a separate type in which a driver's seat and a passenger's seat are separately, while the rear seat adopts a bench type in which left and right seats are integrally combined.

These seats are provided with seat belts to prevent occupants from falling off the seats and causing injuries in the event of a crash. In particular, the front seat is provided with a height adjustment lever that adjusts the seat height according to the occupant's body shape, and the inclined angle of the seat back, which is the backrest portion, can be adjusted to the occupant's body shape on the side of the seat back. The seat back's angle adjuster is fitted.

Currently, the seat back angle adjusting device mounted on the front seat adjusts the seat back angle little by little by rotating the rotary lever, and lifts the hinge lever to release the seat back, and then tilts it. After adjusting the angle as desired, it is divided into a method of fixing the seat back by releasing the adjustment lever.

Conventional vehicle seat back angle adjustment device having such a configuration is inconvenient to rotate the control lever several times in order to adjust the angle in the case of the former rotary type, in the case of the latter hinge type when the angle adjustment during operation Since the fixed state of the seat back is temporarily released, there is a risk of causing an accident.

The present invention devised to solve such a problem can adjust the angle of the seat back at high speed when the vehicle is stopped and can adjust the angle of the seat back in two stages so as to promote safe driving by slowly adjusting the angle of the seat back during driving. It is an object of the present invention to provide an angle adjusting device for a vehicle seat back.

The object of the present invention described above is a horizontal bracket fixed to the side of the seat cushion which is a seating part of the passenger and attached to the bearing seat, and a vertical bracket fixed to the seat back in a state capable of pivoting on the horizontal bracket by a fixing pin and having a receiving groove. And, one end is provided with a locking end 22 is inserted into the receiving groove of the vertical bracket and the other end is rotatably mounted by the bearing 32, the outer circumferential portion is driven shaft having a first driven gear and a second driven gear And, one end is rotatably mounted on the bearing seat of the horizontal bracket via the bearing, the other end is attached to the control lever, the outer peripheral portion of the first drive gear and the second drive gear meshing with the first driven gear and the second driven gear It is achieved by the angle adjusting device of the vehicle seat back characterized in that the drive shaft is formed of a gear.

1 is a perspective view showing the configuration of a vehicle seat equipped with an angle adjusting device of the seat back according to the present invention

Figure 2 is an exploded perspective view showing the angle adjustment device of the vehicle seat back according to the present invention

Figure 3 is a cross-sectional view showing the angle adjustment device of the vehicle seat back according to the present invention

* Description of the symbols for the main parts of the drawings *

2: seat back 4: seat cushion

8: Cover 10: Adjustment lever

12: Rotation bracket 12a: Storage groove

14: fixing bracket 16: fixing pin

20: driven shaft 22: hook end

24, 26: First and second driven gear 28: Bearing seat

30: drive shaft 34, 36: first and second drive gear

Hereinafter, with reference to the accompanying drawings it will be described in detail with respect to the angle adjustment device for a vehicle seat back according to a preferred embodiment of the present invention.

1 is a perspective view showing the configuration of a vehicle seat equipped with an angle adjusting device of the seat back according to the present invention, Figure 2 is an exploded perspective view showing the configuration thereof, Figure 3 is a cross-sectional view thereof.

First, as shown in FIG. 1, a seat generally consists of a seat cushion 4, which is a seat where a passenger sits, and a seat back 2, which is a back leaning part. The headrest 6 which can protect the neck part of a passenger in the case of a collision, and rests leaning head is removably mounted.

In addition, an angle adjusting device of the seat back according to the present invention, which is enclosed by the cover 8, is mounted at the lower side of the side of the seat back 2. When rotating the rotary control lever 10 protruding out of the cover 8, the seat back (2) can be rotated at two speeds, which will be described in the following Figures 2 and 3.

Figure 2 is an exploded perspective view showing the angle adjustment device of the vehicle seat back according to the present invention, the overall configuration of the vertical bracket 12 fixed to the side of the seat back 2, and the seat cushion 4 The horizontal shaft 14 fixed to the side and the above-mentioned adjustment lever 10 are attached to one end, and the drive shaft 30 provided with the 1st drive gear 34 and the 2nd drive gear 36, and a 1st drive It consists of a driven shaft 20 having a first driven gear 24 and a second driven gear 26 selectively rotated by the gear 34 and the second driving gear 36.

The bearing bracket 28 to which the bearing 38 is mounted is attached to the horizontal bracket 14 fixed to the side of the seat cushion 4, and the vertical bracket 12 fixed to the side of the seat back 2 is accommodated. The groove 12a is formed. Here, the vertical bracket 12 is rotatably mounted to the horizontal bracket 14 around the fixing pin 16.

One end of the drive shaft 30 rotated by the adjustment lever 10 is rotatably mounted to the above-described bearing seat 28 via the bearing 38, and the other end is attached to the adjustment lever 10. In addition, the diameter of the first drive gear 34 formed in the outer circumferential portion is configured to be larger than the diameter of the second drive gear (36). In addition, the end of the drive shaft 30 is formed by the enlarged end portion 30 ′ so that the control lever 10 is not separated from the horizontal bracket 14.

At one end of the driven shaft 20 rotated by the rotational force of the drive shaft 30, a locking end 22 is inserted into the receiving groove 12a of the vertical bracket 12, and the other end is interposed between the bearing 32. And is rotatably mounted on the inner surface of the cover 8. In addition, the diameter of the first driven gear 24 formed in the outer circumferential portion is configured to be smaller than the diameter of the second driven gear 26.

Therefore, when the control lever 10 is rotated in the longitudinal direction to rotate the control lever 10 in a state in which the first drive gear 34 and the first driven gear 24 are engaged, the second drive gear 36 is rotated. And the number of revolutions when rotating the control lever 10 in the state in which the second driven gear 26 is engaged are inversely proportional to the diameter, thereby rotating the driven shaft 20 at different speed differences, which will be described below in FIG. 3. do.

3 is a cross-sectional view showing the angle adjusting device of the vehicle seat back according to the present invention, the second drive gear 36 and the second driven gear 26 is shown in an engaged state.

First, as shown in the drawing, when the adjusting lever 10 is rotated while the second driving gear 36 and the second driven gear 26 are engaged with each other, the bearings 38, ( The second driven gear 26 rotates at a high speed by the second drive gear 36 while the rotary shaft 30 supported by 40 rotates. That is, since the diameter of the second driven gear 26 is larger than that of the second driving gear 36, the second driving gear 36 is rotated at a high speed. Therefore, the angle of the seat back 2 can be adjusted at high speed.

Next, when the adjustment lever 10 is pushed inward, the engagement state of the second drive gear 36 and the second driven gear 26 is released, and the drive shaft 30 moves inward, thereby driving the first drive gear. 34 and the first driven gear 24 mesh with each other. In this state, since the diameter of the first drive gear 34 is larger than the diameter of the second driven gear 26, when the adjustment lever 10 is turned, the rotational force of the drive shaft 30 is reduced to the second drive gear 36 and the first drive gear. The driven shaft 20 is transmitted to the driven shaft 20 through the driven gear 26. As a result, the driven shaft 20 rotates at a slow speed, thereby slowly adjusting the angle of the seat back 2 by rotating the vertical bracket 12. It is possible to do

The angle adjusting device for a vehicle seat back according to the present invention described above adjusts the angle of the seat back at two speeds, thereby providing convenience by adjusting the angle of the seat back at a high speed when the vehicle is stopped, and at a low speed while driving. By controlling the angle of the bag has the effect of promoting safe operation.

Claims (4)

The seat back is fixed to the side of the seat cushion 4, which is a seating part of the passenger, and the seat back is rotatable to the horizontal bracket 14 by the fixing pin 16 and the horizontal bracket 14 to which the bearing seat 28 is attached. (2) having a vertical bracket (12) having a receiving groove (12a), and one end having a locking end (22) inserted into the receiving groove (12a) of the vertical bracket 12, the other end bearing 32 It is mounted so as to be rotatable, the outer peripheral portion has a first driven gear 24 and a second driven gear 26, the driven shaft 20, and one end via the bearing 38, the horizontal bracket (14) The first driving gear that is rotatably mounted to the bearing seat 28 of the) and the other end is attached to the control lever 10, the outer peripheral portion is engaged with the first driven gear 24 and the second driven gear 26. Angle adjustment of the vehicle seat back, characterized in that the drive shaft 30 is formed with a 34 and the second drive gear (36) Device. 2. An angle adjusting device for a vehicle seat back according to claim 1, wherein the drive shaft (30) and the driven shaft (20) are wrapped by a cover (8). The method of claim 1, wherein the first driven gear 24 and the second driven gear 26 have different diameters, and the first driving gear 34 and the second driving gear 36 engaged with each other, The angle adjusting device of the vehicle seat back, characterized in that the first driven gear (24) and the second driven gear (26) having a different diameter symmetrically. The angle adjusting device of the vehicle seat back according to claim 1 or 2, wherein the drive shaft (30) is movable in and out of the seat (28).