KR100196165B1 - Apparatus for adjusting the height of a seat armrest - Google Patents

Abstract

The present invention relates to a seat armrest height adjusting device and includes a main body 11 having a first guide rail 12 and a second guide rail 13 formed on both sides and having respective teeth 12a and 13a formed therein, A guide rail unit 10 having upper and lower fixing parts 15 and 16 formed on upper and lower sides thereof, respectively; A fixed end 22 is formed at one end of the rotary rod 21 which is rotatable in both directions and inserted into the guide groove 14 of the guide rail unit 10 and is capable of rotating the rotary rod 21 in both directions An actuator (20) to which an operation switch (24) that can be operated is connected; And a main body 31 formed of a front plate 32 and a rear plate 33 formed with a stub 32a to which the seat arm rest 4 is fixed. An active gear 34 fixed to the fixed end of the rod 21, a first driven gear 34 meshed with the active gear 34 and the tooth 12a and moved up and down along the first guide rail 12a, A differential gear 36 which is engaged with the active gear 34 and a differential gear 36 which is meshed with the differential gear 36 and the toothed gear 13a to be moved up and down along the second guide rail 13, A drive unit (30) having a second driven gear (37) mounted thereon and moved up and down in the guide rail unit according to the operation of the actuator (20); And the seat armrest can be adjusted in a fine adjustment unit in a wide adjustment range, thereby improving the convenience of the occupant.

Description

Seat arm rest height adjustment.

The present invention relates to a seat armrest height adjusting apparatus, and more particularly, to a seat armrest height adjusting apparatus which is provided with a guide rail having a gear formed on one side of a seat so as to adjust the height of the armrest by an actuator and gear To a seat armrest height adjusting device.

Generally, automobiles are provided with various facilities, and the common one is the armrest. Such an armrest may be installed, for example, in the center of the rear seat, or installed on a door or the like, so that a passenger can mount his / her arm on the armrest and can ride comfortably.

In recent years, such armrests have also been installed on front seats for the convenience of passengers on the front passenger side. A perspective view showing such a general seat armrest is shown in Fig.

1, a guide rail 3 is installed or built in one side of a seatback 2 of a seat 1, and the armrest 4 can be adjusted up and down along a guide rail 3 . The armrest 4 is extended in use and held in a state of being in contact with the side of the seatback 2 in a vertical state when not in use. The straddle 5 of the slider 5, which moves along the guide rail 3, 5a to be rotatable by the knob 6. [0035]

However, the height of the seat armrest structure can not be accurately and precisely controlled.

That is, the height of the seat armrest is adjusted by the slider, and the slider 5 is inserted into the stop groove 3a formed in the guide rail 3. More specifically, The stopper portions 5b are adjusted in such a manner that the stopper portions 5b are inserted into the stopper grooves 3a formed in the guide rails at regular intervals so that the height adjustment unit is relatively large in the distance between the stopper grooves 3a and the range is very narrow .

As a result, the occupants with various physical conditions and tactile habits of the arm can not adjust the height of the armrest in accordance with their own conditions, and traveled in an uncomfortable state.

Particularly, since the height adjustment of the armrests is manually performed, the adjustment method is very inconvenient.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a seat armrest height adjusting device capable of adjusting a height of a seat armrest with a wide range of adjustment, .

Another object of the present invention is to provide a seat armrest height adjusting apparatus capable of automatically adjusting a height of a seat armrest.

1 is a perspective view showing a state in which a height of a conventional seat armrest is adjusted.

2 is an exploded perspective view of the seat armrest adjusting device according to the present invention.

Fig. 3 is a state of use when the seat armrest adjusting device according to the present invention is installed on a seat. Fig.

DESCRIPTION OF THE REFERENCE NUMERALS

1: Sheet 2: Seatback

4: seat armrest 6: knob

10: guide rail unit 12, 13: guide rail

14: Guide groove 20: Actuator

21: rotating rod 30: driving unit

32: front plate 33: rear plate

34: Active gear 35: First driven gear

36: Differential gear 37: Second driven gear

These objects are achieved by a preferred embodiment of the present invention. According to one aspect of the present invention, there is provided a bending device comprising: a main body having a first guide rail and a second guide rail formed on both sides thereof, A guide rail unit having a guide groove formed in the body and having an upper fixing part and a lower fixing part formed on upper and lower sides, respectively; An actuator rotatable in both directions and having a fixed end formed at one end of a rotary rod inserted in a guide groove of the guide rail unit, and an operation switch operable to rotate the rotary rod in both directions; And a main body formed of a front plate and a rear plate having a stub for fixing the seat armrest, wherein the main body includes an active gear fixed to a fixed end of the rotary rod of the actuator, an active gear, A first driven gear which is moved up and down along one guide rail, a differential gear which is gear-engaged with the active gear, and a second driven gear which is engaged with the differential gear and the teeth and is moved up and down along the second guide rail And a driving unit which is installed in the guide rail unit and is moved up and down by the guide rail unit according to the operation of the actuator.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is an exploded perspective view of the seat armrest adjusting apparatus according to the present invention, and FIG. 3 is a state diagram showing a state in which the seat armrest adjusting apparatus according to the present invention is installed on a seat.

2 and 3, the seat armrest height adjusting apparatus according to the present invention comprises a guide rail unit 10, an actuator 20, and a drive unit 30. As shown in Fig.

More specifically, the guide rail unit 10 includes a main body 11 having first and second guide rails 12 and 13 bent at both sides thereof. In each of the guide rails 12 and 13 of the main body 11, teeth 12a and 13a are formed along the length thereof. A guide groove 14 having a predetermined length is formed in the main body 11. Further, two fixing portions, that is, an upper fixing portion 15 and a lower fixing portion 16, which are fixed to the seatback side of the seat by bolts, for example, are provided at the upper and lower portions of the main body.

The actuator 20 includes a rotary rod 21 rotatable in both directions and the rotary rod 21 is inserted into a guide groove 14 formed in the main body 11 of the guide rail 10, Reciprocate. Further, it is preferable that a fixed end 22 to which an active gear of a drive unit, which will be described later in detail, can be fixed is formed at the end of the rotary rod 21. Particularly, the actuator 20 is connected to the operation switch 24 through the wire 23. The operation switch includes two operation buttons 24a and 24b and is installed on one side of the seat or on the armrest itself .

The drive unit (30) includes a main body (31) inserted into the guide rail unit (10). The main body 31 includes a front plate 32 and a rear plate 33. A center portion of the front plate 32 is provided with a stub 32a fixed to the seat armrest 4 by a knob 6, Respectively. The main body 31 is also provided with a first classical gear (not shown) meshed with the teeth 12a formed on the first guide rail 12 of the active gear 34, the active gear 34 and the guide rail unit 10 A differential gear 36 that is engaged with the active gear 34 and a gear 13a formed on the differential gear 36 and the second guide rail 13 of the guide rail unit 10, And a second driven gear 37 to be engaged is rotatably installed. The first driven gear 35, the differential gear 36 and the second driven gear 37 among these gear sets are rotatably fixed to the rear plate 33. The rotational axis of the active gear 34 is fixed to the fixed end 22 formed on the rotary rod 21 of the actuator 20 in conformity with the guide groove 14 of the guide rail unit 10. The seat armrest 4 fixed to the drive unit 20 is moved up and down along the guide rail unit 10 when the actuator 20 is operated and the rotary rod 21 is rotated.

In order to adjust the height of the seat armrest 4 after the occupant sits on the seat 1 in the operation of the seat armrest height adjusting device according to the present invention, .

For example, the button 24a is pressed to move the seat armrest 4 upward, and the button 24b is pressed to lower it. Of course, the button 24a and the button 24b are configured to rotate the rotation rod 21 in opposite directions.

At the same time, the rotary rod 21 of the actuator 20 is rotated in one direction or the other direction, so that the active gear 34 is rotated in the same direction as the rotary rod.

At the same time, the first driven gear 35, the differential gear 36, and the second driven gear 37 are linked and rotated in a gear-engaged state. At this time, the first driven gear 35 is moved along the teeth 12a of the first guide rail 12 and the second driven gear 37 is moved upward along the teeth 13a of the second guide rail 13 Or downward.

Further, the adjustment unit of the seat armrest can be in the range of one pitch of the gear, and can be adjusted to the fine position.

Accordingly, the driver or the occupant can fix the seat armrest at the optimum position according to the physical condition of the driver and the boarding state.

As a result, when the seat armrest adjusting device according to the present invention is applied to a seat of an automobile, the seat armrest can be easily adjusted by operating the operation switch while the occupant is seated. The seat armrest can be precisely adjusted to an optimum position desired by the occupant, thereby increasing convenience.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

Claims (1)

And a main body 11 having a first guide rail 12 and a second guide rail 13 formed on both sides and each having teeth 12a and 13a formed therein. A guide groove 14 formed in a downward direction and a guide rail unit 10 having an upper fixing part 15 and a lower fixing part 16 formed on upper and lower sides, respectively; A fixed end 22 is formed at one end of a rotary rod 21 inserted into the guide groove 14 of the guide rail unit 10 and the rotary rod 21 is rotated in both directions An actuator 20 to which an operation switch 24 operable to be operated is connected; And a main body 31 formed of a front plate 32 and a rear plate 33 formed with a stub 32 to which the seat arm rest 4 is fixed. An active gear 34 fixed to the fixed end of the first driven gear 21 and a first driven gear 34 meshing with the active gear 34 and the tooth 12a to be moved up and down along the first guide rail 12a A differential gear 36 which is engaged with the active gear 34 and a differential gear 36 which is meshed with the differential gear 36 and the tooth 13a and is moved up and down along the second guide rail 13 A drive unit (30) provided with a second driven gear (37) and moved up and down in the guide rail unit according to the operation of the actuator (20); Wherein the seat cushion height adjusting device is configured to adjust the height of the seat cushion height adjusting device.