KR101683397B1 - apparatus for driving height link of seat for car - Google Patents

apparatus for driving height link of seat for car Download PDF

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Publication number
KR101683397B1
KR101683397B1 KR1020150136941A KR20150136941A KR101683397B1 KR 101683397 B1 KR101683397 B1 KR 101683397B1 KR 1020150136941 A KR1020150136941 A KR 1020150136941A KR 20150136941 A KR20150136941 A KR 20150136941A KR 101683397 B1 KR101683397 B1 KR 101683397B1
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KR
South Korea
Prior art keywords
base plate
housing bracket
inclined portion
gear
sector gear
Prior art date
Application number
KR1020150136941A
Other languages
Korean (ko)
Inventor
황준식
이정빈
Original Assignee
주식회사다스
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Filing date
Publication date
Application filed by 주식회사다스 filed Critical 주식회사다스
Priority to KR1020150136941A priority Critical patent/KR101683397B1/en
Application granted granted Critical
Publication of KR101683397B1 publication Critical patent/KR101683397B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/1635—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the drive mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/1635—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the drive mechanism
    • B60N2/165—Gear wheel driven mechanism

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

The present invention relates to a height link driving apparatus for an automobile seat, in which a gear hole (11) and a bolt hole (13) of a base plate (10) are formed in a slot shape, and a base plate (10) and a housing bracket The pair of inclined portions 15 and 53 are formed to limit the relative positions of the sector gear 20 and the pinion gear 40 so that the distance between the sector gear 20 and the pinion gear 40 can be set to an accurate value.

Description

[0001] The present invention relates to an apparatus for driving a vehicle,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a height link drive apparatus for an automobile seat, and more particularly, to a height link drive apparatus for an automobile seat for operating a height link for adjusting the height of a seat cushion in an automotive seat.

Generally, the seat of an automobile has a function of adjusting the angle of the seat back and the position of the seat back and forth for the convenience of passengers.

In addition, as an additional convenience specification, there is an increasing number of vehicles to which the height adjusting device is applied so that the height of the seat cushion can be adjusted.

The seat cushion height adjusting device is composed of a link mechanism interlocked with the height link, and the height link is operated by a height link driving device including a pumping device.

As shown in Fig. 1, the above-mentioned HeightLink drive device includes a sector gear 2 rotatably installed on one side of a base plate 1 on a side surface of a seat cushion, a pumping device (not shown) provided on the other side of the base plate 1, And a pinion gear 3 mounted on an output shaft of the pumping device and meshed with the sector gear 2, and a height link is connected to an arm 2a formed on one side of the sector gear 2 . The sector gear 2 and the pinion gear 3 are covered by a housing bracket (not shown) mounted on the base plate 1.

As described above, the output of the pumping device is transmitted through the pinion gear 3 and the sector gear 2. Depending on the engagement state of the pinion gear 3 and the sector gear 2, Receive.

That is, when the distance L between the shafts of the sector gear 2 and the pinion gear 3 is short, the gap between the gears is insufficient, which makes assembly difficult, lowers operational sensibility, , And the inter-gear clearance is excessive when the inter-shaft distance (L) is long, thereby increasing the impact noise.

Therefore, there is a demand for a heights link drive device in which, when assembled, the distance L between the axes of the sector gear 2 and the pinion gear 3 can be easily adjusted to an accurate value.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a height link drive apparatus for a car seat, which can easily and easily adjust the distance between the sector gear and the pinion gear during assembly.

According to an aspect of the present invention, there is provided a pumping device including a base plate, a sector gear rotatably mounted on one side of the base plate, a pumping device mounted on the other side of the base plate, And a housing bracket mounted on one side of the base plate to cover the sector gear and the pinion gear, wherein the housing bracket is mounted on one side of the base plate, And the housing bracket are integrally connected to each other, and the base plate and the housing bracket are formed with inclined portions which are in close contact with each other when assembled to limit the relative position.

The welded bolt is inserted into the bolt hole formed in the base plate and the mounting hole formed in the mounting flange of the pumping device, and the nut is fastened to the end of the welded bolt.

The gear hole and the bolt hole of the base plate are expanded and formed in a slot shape, and the extending direction thereof is a direction parallel to the axis line of the sector gear and the pinion gear.

As the inclination angle of the base plate inclined portion is larger than the inclination angle of the inclined portion of the housing bracket so that the inclined portion of the housing bracket slides along the inclined portion of the base plate as the nut is tightened so that the pumping device and the housing bracket assembly move toward the sector gear, The inter-axis distance is reduced.

The inclined portion of the housing bracket is elastically deformed by a reaction force applied when the nut is fastened, and is brought into surface-contact with the inclined portion of the base plate as a whole.

The inclined portion of the housing bracket may be divided into a plurality of divided pieces.

And a round portion may protrude from the sloped portion of the base plate to some of the plurality of slit pieces.

As described above, according to the present invention, the base plate and the housing bracket are each provided with the inclined portion, and when the housing bracket is assembled to the base plate by the action of these inclined portions, the distance between the axes of the sector gear and the pinion gear is naturally adjusted to an accurate value .

As described above, since the accurate inter-axis distance is formed, the operational sensibility is improved, the hip-link operating force is reduced, and the noise generation is reduced.

Also, since the assembly is progressed in a state where the distance between the shafts is large at the time of assembling, it gradually decreases and finally the accurate value is formed at the end of the assembly, so that the gap between the gears is large at the initial stage of assembling.

Further, in the interaxial distance adjusting operation according to the present invention, there is an advantage that a separate facility is not necessary since it is merely required to tighten the nut.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a meshed state of a sector gear and a pinion gear, which is a main structure of a seat height link drive device; Fig.
2 is an exploded perspective view of the seat height link driving device according to the present invention.
FIG. 3 is a rear perspective view of FIG. 2 (however, the housing bracket is assembled on the base plate).
4 is a front view of the base plate;
5 is a sectional view showing the assembly of the seat height link driving device according to the present invention in a flat state.
FIG. 6 and FIG. 7 are enlarged views of the one-side nut assembly of FIG. 5, FIG. 6 is a state before a nut is fastened, and FIG. 7 is a state after fastening a nut.
FIG. 8A is a coupling state of the sector gear and the pinion gear before the nut is fastened, and FIG. 8B is a coupling state of the sector gear and the pinion gear after the nut is fastened.
9 is a view showing a modified embodiment of the housing bracket.
10 is a sectional view taken along the line XX in Fig.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. The thicknesses of the lines and the sizes of the components shown in the accompanying drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are defined in consideration of the functions of the present invention, and these may vary depending on the intention of the user, the operator, or the precedent. Therefore, definitions of these terms should be made based on the contents throughout this specification.

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

2 is a rear perspective view of the seat height link driving apparatus according to the present invention, in which the housing bracket is assembled to the base plate, and FIG. 4 is a perspective view of the housing bracket assembly As shown in Figs. 2 to 4, the height link drive apparatus for an automobile seat according to the present invention includes a base plate 10 provided on a side surface of a seat cushion, A sector gear 20 rotatably mounted on the side surface and formed with an arm 21 connected to the height link, a pumping device 30 mounted on the other side of the base plate 10, A pinion gear 40 mounted on one side of the base plate 10 and protruding on the opposite side through a gear hole 11 formed in the base plate 10 and engaged with the sector gear 20, 20) and a pinion And a housing bracket 50 covering the gear 40. The pumping device 30 and the housing bracket 50 are integrally connected to each other and the base plate 10 and the housing bracket 50 are integrally formed with each other And inclined portions (15, 53) which are in close contact with each other and restrict a relative position.

The inclined portion 15 of the base plate 10 and the inclined portion 53 of the housing bracket 50 are formed such that the inclination angle of the inclined portion 15 of the base plate 10 is larger than the inclination angle of the inclined portion 53 of the housing bracket 50 . The inclined portion 53 of the housing bracket 50 has elasticity such that the inclination angle of the nut 60 can be changed when the nut 60 is fastened to the weld bolt 51 of the housing bracket 50.

The base plate 10 is fixed to the seat cushion frame. A gear hole 11 is formed in a substantially middle portion of the base plate 10 so that the pinion gear 40 is inserted therethrough and the pumping device 30 and the housing bracket Mounting holes 13 and 14 for mounting the first and second mounting portions 50 and 50 are formed. The bolt holes 13 into which the weld bolts 51 of the housing bracket 50 are inserted are slot-shaped holes having an extended length in the transverse direction. Likewise, the gear hole 11 is also a slot-shaped hole whose length is extended in the transverse direction.

The extending direction center line of the gear hole 11 and the bolt hole 13 has a parallel relationship with a straight line (axis-to-axis distance line) connecting the center of rotation of the sector gear 20 and the pinion gear 40.

The pinion gear 40 and the weld bolt 51 can move in a direction parallel to the axis line of the sector gear 20 and the pinion gear 40 in the gear hole 11 and the bolt hole 13 .

The sector gear 20 is formed in a tooth shape that engages with the pinion gear 40 on the outer periphery of the fan-shaped body, and the arm 21 protrudes from the lower side of the body. A pipe 22 is rotatably inserted into a pipe hole 12 formed at one end of the base plate 10 and a sector gear 20 is provided to rotate integrally with the pipe 22. [

A through hole 23 through which the weld bolt 51 of the housing bracket 50 is passed is formed in the middle of the body of the sector gear 20. The through hole 23 is formed in the center of the body of the sector gear 20, The through hole 23 is formed in an arc shape along the circumferential direction of the body of the sector gear 20.

The pumping device 30 includes a mounting bracket 31 protruding from an end of the body and mounted on the mounting bracket 31 at positions corresponding to the mounting holes 13 and 14 of the base plate 10 A hole 32 is formed.

Weld bolts 51 are provided on one side of the housing bracket 50 at positions corresponding to the bolt holes 13 of the base plate 10, respectively. And a shaft hole 52 for avoiding interference with the axis of the pinion gear 40 is formed at the center.

Now, the assembling process of the present invention will be described.

5, first, the sector gear 20 is installed in the pipe hole 12 of the base plate 10 via the pipe 22.

In this state, the housing bracket 50 is aligned on one side of the base plate 10. That is, the weld bolts 51 of the housing bracket 50 are inserted into the bolt holes 13 of the base plate 10.

In this state, the pumping device 30 is aligned on the other side of the base plate 10. That is, the pumping device 30 is most suitable for inserting the weld bolts 51 projected to the other side of the base plate 10 through the bolt hole 13 into the mounting hole 32 at the corresponding position. The mounting holes 32 of the pumping device 30 do not have a clearance gap with the weld bolt 51 in a state where the welded bolt 51 is inserted into the simple circular hole. Therefore, the housing bracket 60 and the pumping device 30 do not flow relative to each other in the transverse direction (in the direction of the axis-to-axis distance) but behave as one body.

6, the assembly of the pumping device 30 and the housing bracket 60 is maximally moved in the direction in which the inclined portions 15 and 53 are formed. The weld bolts 51 are brought into close contact with the inner side surface in the direction in which the inclined portions 15 and 53 are formed in each bolt hole 13 (the hole clearance X1 is present) 11), the pinion gear 40 also moves in the same direction (direction toward the inclined portions 15, 53).

At this time, since the inclination angle of the inclined portion 15 of the base plate 10 is larger than the inclination angle of the inclined portion 53 of the housing bracket 50, the inclined portion 53 of the housing bracket 50 is inclined 15), and are in contact with each other in such a state that a clearance is formed between them.

In this state, the nut 60 is fastened to the weld bolt 51 as shown in FIG. As the nut 60 is fastened, the weld bolt 51 advances in the direction of the bolt axis (the direction of the arrow a), and the inclined portion 53 of the housing bracket 50 contacts the inclined portion 15 of the base plate 10, And moves in the direction of the interaxial distance line direction (arrow b direction).

When the tightening of the nut 60 further progresses and the magnitude of the reaction force applied to the inclined portion 53 of the housing bracket 50 increases, the inclined portion 53 of the housing bracket 50 is elastically deformed in the direction of increasing the inclination angle As a result, the inclined portions 15 of the base plate 10 have the same inclination angle and are in close contact with each other, so that the force to move the housing bracket 50 in the direction of the arrow b is not generated. At this time, the peripheral portion of the welding bolt 51 of the housing bracket 50 is also brought into close contact with the peripheral portion of the bolt hole 13 of the base plate 10. (At this time, the hole clearance gap is X2.

That is, the housing bracket 50 is brought into close contact with the base plate 10 by the tightening of the nut 60, and the hole clearance is moved toward the sector gear 20 as much as the hole clearance is reduced from X1 to X2.

Since the pumping device 30 moves integrally with the housing bracket 50, the pinion gear 40 mounted on the pumping device 30 is also moved with the housing bracket 50 in the same direction.

Therefore, the distance between the axes of the sector gear 20 and the pinion gear 40 is reduced by the movement of the housing bracket 50, so that an accurate inter-axis distance is formed as intended in designing.

That is, the base plate 10 and the housing bracket 50 are always constantly positioned relative to each other when the slopes 15 and 53 come into surface contact with each other. Thus, the sector gears 20 and the pinion gear 40 moving integrally with the housing bracket 50 are constantly formed when the assembly is completed.

Therefore, if the inter-shaft distance at the time of completion of assembly is properly set, the gear teeth 20 and the pinion gear 40 are properly engaged with each other, thereby improving the operational sensibility, reducing the hip-link operating force, do.

Particularly, before the nut 60 is fastened, the pinion gear 40 is maximally moved in the direction of the inclined portion 15 opposite to the sector gear 20, so that the sector gear 20 and the pinion gear 40 So that the coupling of the pumping device 30 and the like is facilitated. When the assembly of the nut 60 is completed, that is, when the assembly is completed, as shown in FIG. 8 (b) The sector gear 20 and the pinion gear 40 are properly meshed with each other, and there is no gap between the gear teeth, so that a smooth motor action can be achieved.

When the inclined portion 53 of the housing bracket 50 is elastically deformed beyond a predetermined load during the tightening of the nut 60 as described above and the inclined portions 15 and 53 of the base plate 10 and the housing bracket 50 The assembly of the pumping device 30 and the housing bracket 50 does not move in the direction of the arrow b and the pinion gear 40 of the pumping device 30 does not move toward the sector gear 20. Therefore, excessive contact between the pinion gear 40 and the sector gear 20 can be prevented, and excessive surface pressure can be prevented from occurring between the both gears.

9 shows a modified embodiment of the housing bracket 50 for preventing over-pressing between the gears as described above. As shown in FIG. 9, the inclined portion 53 of the housing bracket 50 may be divided into a plurality of divided pieces 53a, 53b, and 53c. In this case, since the elasticity with respect to the load generated when tightening the nut 60 is reduced, the seam of the inclined portions 15, 53 occurs at an earlier point than the embodiment of Fig. 7, To the sector gear 20 side more quickly, thereby preventing formation of transient surface pressure due to excessive contact between the gears.

As shown in Fig. 10, the inclined portion (the divided portion 53b located at the center in order to balance the operation) of the plurality of divided pieces 53a, 53b, 53c The round portion 54 can be formed to protrude toward the outer circumferential surface 15a.

Since the split piece 53b formed with the round portion 54 is deformed at a point earlier than the other split pieces 53a and 53c when a load is generated when the nut 60 is fastened, The force to move the pumping device 30 and the housing bracket 50 assembly toward the sector gear 20 is weakened corresponding to the inclined portion 15 of the plate 10. Accordingly, the movement of the pinion gear 40 toward the sector gear 20 is stopped prematurely, and it becomes possible to more reliably prevent the generation of the transient surface tension between the gears.

As described above, the assembly according to the present invention can be completed only by a simple operation of tightening the nut. At the same time as the assembly is completed, the distance between the axes of the gears is set to an accurate value.

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 embodiments, but, on the contrary, It is understandable. Accordingly, the true scope of the present invention should be determined by the following claims.

10: base plate 11: gear hole
12: Pipe hole 13: Bolt hole
14: mounting hole 20: sector gear
21: arm 22: pipe
23: Through hole 30: Pumping device
31: Mounting flange 32: Mounting hole
40: pinion gear 50: housing bracket
51: weld bolt 52: shaft hole
15,53: inclined portion 54: round portion

Claims (7)

A base plate,
A sector gear rotatably mounted on one side of the base plate,
A pumping device mounted on the other side of the base plate,
A pinion gear mounted on an output shaft of the pumping device and protruding on the opposite side through a gear hole formed in the base plate to mesh with the sector gear,
And a housing bracket mounted on one side of the base plate for covering the sector gear and the pinion gear,
The pumping device and the housing bracket are integrally connected to each other. The base plate and the housing bracket are each formed with inclined portions that are in close contact with each other when assembled,
The welded bolt is inserted into a bolt hole formed in a base plate and a mounting hole formed in a mounting flange of a pumping device, a nut is fastened to an end of the welded bolt,
Wherein the gear hole and the bolt hole of the base plate are expanded and formed in a slot shape and the extending direction thereof is parallel to the axis line of the sector gear and the pinion gear. delete delete The method according to claim 1,
As the inclination angle of the base plate inclined portion is larger than the inclination angle of the inclined portion of the housing bracket so that the inclined portion of the housing bracket slides along the inclined portion of the base plate as the nut is tightened so that the pumping device and the housing bracket assembly move toward the sector gear, And the inter-shaft distance is reduced. The method of claim 4,
Wherein the inclined portion of the housing bracket is elastically deformed by a reaction force applied when the nut is fastened, and is brought into surface-contact with the inclined portion of the base plate as a whole. The method of claim 5,
And the inclined portion of the housing bracket is divided into a plurality of divided pieces. The method of claim 6,
And a round portion is formed on some of the plurality of split pieces so as to protrude toward an inclined portion of the base plate.
KR1020150136941A 2015-09-25 2015-09-25 apparatus for driving height link of seat for car KR101683397B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150136941A KR101683397B1 (en) 2015-09-25 2015-09-25 apparatus for driving height link of seat for car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150136941A KR101683397B1 (en) 2015-09-25 2015-09-25 apparatus for driving height link of seat for car

Publications (1)

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KR101683397B1 true KR101683397B1 (en) 2016-12-06

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KR1020150136941A KR101683397B1 (en) 2015-09-25 2015-09-25 apparatus for driving height link of seat for car

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190036888A (en) * 2017-09-28 2019-04-05 주식회사다스 Height adjustment device for automobile seat

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050101376A (en) * 2004-04-19 2005-10-24 기아자동차주식회사 Apparatus for adjusting height of seat for vehicle
JP2006182039A (en) * 2003-04-21 2006-07-13 T S Tec Kk Height adjusting device for car seat
JP2006282018A (en) * 2005-03-31 2006-10-19 T S Tec Kk Automobile seat height adjusting device
KR20150089098A (en) * 2010-12-22 2015-08-04 브로제 파르쪼이크타일레 게엠베하 운트 코. 카게, 코부르크 Vehicle seat having a height adjustment device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006182039A (en) * 2003-04-21 2006-07-13 T S Tec Kk Height adjusting device for car seat
KR20050101376A (en) * 2004-04-19 2005-10-24 기아자동차주식회사 Apparatus for adjusting height of seat for vehicle
JP2006282018A (en) * 2005-03-31 2006-10-19 T S Tec Kk Automobile seat height adjusting device
KR20150089098A (en) * 2010-12-22 2015-08-04 브로제 파르쪼이크타일레 게엠베하 운트 코. 카게, 코부르크 Vehicle seat having a height adjustment device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190036888A (en) * 2017-09-28 2019-04-05 주식회사다스 Height adjustment device for automobile seat
KR102390978B1 (en) 2017-09-28 2022-04-27 주식회사 다스 Height adjustment device for automobile seat

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