KR20150128286A - Seat Drive Apparatus with Planetary Gear and Seat Height Control Apparatus - Google Patents

Seat Drive Apparatus with Planetary Gear and Seat Height Control Apparatus Download PDF

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Publication number
KR20150128286A
KR20150128286A KR1020140055397A KR20140055397A KR20150128286A KR 20150128286 A KR20150128286 A KR 20150128286A KR 1020140055397 A KR1020140055397 A KR 1020140055397A KR 20140055397 A KR20140055397 A KR 20140055397A KR 20150128286 A KR20150128286 A KR 20150128286A
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KR
South Korea
Prior art keywords
gear
housing
seat
output
worm wheel
Prior art date
Application number
KR1020140055397A
Other languages
Korean (ko)
Inventor
강병주
장우교
이상배
Original Assignee
계양전기 주식회사
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Filing date
Publication date
Application filed by 계양전기 주식회사 filed Critical 계양전기 주식회사
Priority to KR1020140055397A priority Critical patent/KR20150128286A/en
Publication of KR20150128286A publication Critical patent/KR20150128286A/en

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    • 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
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B60N2/225—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by cycloidal or planetary mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
    • F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Seats For Vehicles (AREA)

Abstract

The present invention relates to an apparatus for driving a seat to transfer power in a direction vertical to a rotary shaft of a motor and a seat height control device including the same. In particular, the present invention is formed to easily control the seat height of a vehicle by transferring power transferred from the rotary shaft of the motor in the vertical direction with a high reduction gear ratio through a planetary gear at the same axis line. To achieve the purpose as above, the seat driving device according to the present invention comprises: a worm gear rotated by power of a motor mounted on the outer side by being located inside a gear housing; a worm wheel rotated by being geared with the worm gear; the planetary gear including planet gears which revolve around a sun gear with the worm wheel; an output gear rotated by the revolution of the planetary gear; and a housing cover which forms a hole so that a pinion gear of the output gear can protrude from the outer side and is fixated to the gear housing. The seat height control device according to the present invention comprises: a side member mounted on both sides of a seat; a sector gear wherein one end is combined to both sides of the side member by a hinge and the other end is combined to a fixing bracket fixated on the vehicle and a curved tooth unit is included; and the seat driving device which includes the output gear geared to the tooth unit of the sector gear, rotates the output gear by receiving the power of the motor mounted on the side member, moves the seat from the top to the bottom through the sector gear interlocked with the output gear, and transfers the power through the planetary gear on the same axis.

Description

TECHNICAL FIELD [0001] The present invention relates to a seat driving apparatus using a planetary gear, and a seat height adjusting apparatus having the seat driving apparatus.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat driving device for transmitting power in a direction perpendicular to a rotation axis of a motor and a seat height adjusting device having the seat driving device. And the power transmission is performed at a reduction ratio, so that it is easy to adjust the seat height of the vehicle.

The driver adjusts the height of the seat and the inclination of the backrest according to his / her body shape before the driver operates the seat.

In adjusting the height of the seat, the motor is positioned vertically on the arrangement structure of the vehicle and the seat and the sector gear mounted on both sides of the seat is rotated to adjust the height of the seat. In order to rotate the sector gear, It is preferable that the seat driving device for connecting the rotating shaft of the motor to the sector gear is formed in a direction perpendicular to the rotation axis of the motor.

In order to transmit the power in the vertical direction from the rotating shaft of the vertically positioned motor, a seat driving apparatus as shown in FIGS. 1 and 2 has been used.

FIG. 1 is a conceptual view of a conventional seat height adjusting seat driving device, FIG. 2 is another example of a conventional seat height adjusting seat driving device, and FIG. 3 is an exploded perspective view showing a conventional eccentric seat driving device.

1, a worm gear is fixed to a rotating shaft of a vertically positioned motor, and a worm wheel 3 is fixed to the inside of the gear box 5, And an output gear 7 for reducing the rotation of the worm wheel 3 is mounted. Although not shown in FIG. 1, the shaft connected to the center of the output gear 7 is connected to the sector gear, and the sector gear is rotated by the rotation of the motor.

2 is a double worm gear, in which a worm wheel 3 is mounted on a worm gear 2 mounted on a rotary shaft of a motor and an output gear 7 is mounted on two worm wheels 3, And an axis connected to the center of the output gear 7 is connected to the sector gear.

In the conventional seat height adjusting seat drive apparatus configured as described above, since the shaft of the output gear and the shaft of the worm wheel are disposed in parallel to each other, the gear box is required to have a large size. There is a problem.

In addition, there is a disadvantage that it is difficult to transmit a large torque power as a power transmission structure of a worm gear and a worm wheel.

3, the eccentric-seat driving apparatus 10 described in Korean Patent Registration No. 10-1361912 includes a gear housing 20 having a worm gear incorporated therein, A worm wheel 30 which is positioned inside the housing 20 and interlocked by the rotation of the worm gear and fixed to the eccentric bush 40 at the center thereof and a hollow 51 which penetrates the eccentric gear 60, And the eccentric bosses 61 inserted into the eccentric support hole 53 are formed on one surface of the bracket 50 and the eccentric bosses 61 are formed on the eccentric bush 61. [ An eccentric gear 60 in which a hollow 63 is formed to penetrate the bush 40 and a gear 68 is formed on the circumference and a gear 68 of the eccentric gear 60 is engaged with an inner ring gear The output gear 70 and the hollow 81 are formed so as to cover the gear housing 20 so that the shaft 73 of the output gear 70 protrudes outward. And includes a housing cover 180 formed of a metal.

The pinion gear 75 is mounted on the other surface of the output gear 70 so as to receive the power from the eccentric gear 60 and to output the transmitted power.

The conventional seat height adjusting seat driving apparatus configured in this manner has a disadvantage in that emotional quality (occurrence of a jamming feeling) falls in the actual vehicle state due to the clearance of the operating state of the eccentric boss 61 and the eccentric supporting hole 53. [

Korean Patent Publication No. 10-1361912 (Published date 2014.02.13)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the related art as described above, and it is an object of the present invention to provide a seat driving device using a planetary gear capable of maintaining the same shaft from a worm wheel to an output gear, And an object of the present invention is to provide a height adjusting device.

According to an aspect of the present invention, there is provided a seat driving apparatus including a worm gear rotatable by a motor mounted on an outer side of a gear housing, a worm wheel meshing with the worm gear, A planetary gear having planetary gears for revolving the sun gear around the planetary gear, an output gear rotated by revolution of the planetary gear, a housing having a hole formed in such a manner that the pinion gear of the output gear projects outwardly, And a cover.

According to a preferred embodiment of the present invention, the planetary gear includes a sun gear fixed to the center of the worm wheel, a ring gear fixed to the inside of the gear housing, and a sun gear disposed between the sun gear and the ring gear, And planetary gears that revolve around the sun gear while rotating.

According to a preferred embodiment of the present invention, gear shafts inserted into the center of the planet gear are formed on one surface of the output gear, and pinion gears protruding outward through hole of the housing cover are formed on the other surface.

According to a preferred embodiment of the present invention, a center shaft extending through the sun gear and extending to the gear housing is fixed to one surface of the output gear, and a metal bush is fixed to the gear housing to support the rotation of the center shaft.

According to a preferred embodiment of the present invention, a wave washer is positioned between the worm wheel and the metal bush.

According to a preferred embodiment of the present invention, a pivot bush is mounted in the hole of the housing cover to support the output gear.

The seat height adjusting device according to the present invention further includes a side member mounted on both sides of the seat, a sector having a curved tooth portion hinged to one side of the side member at both ends thereof hinged to the stationary bracket fixed to the vehicle, And an output gear which is engaged with the teeth of the sector gear, and receives the power of the motor mounted on the side member to rotate the output gear, and moves the seat vertically through the sector gear interlocked with the output gear, The seat driving device includes a worm gear which is located inside the gear housing and rotates by the power of a motor mounted on the outside, a worm wheel which is engaged with the worm gear and rotates, A planetary gear having planetary gears for revolving a circumference of a sun gear rotating together with a worm wheel, To the output gear to rotate, a hole is formed such that the pinion gear of the output gear is projected outward and to the technical characteristics including a housing cover which is fastened to the gear housing.

According to a preferred embodiment of the present invention, the planetary gear includes a sun gear fixed to the center of the worm wheel, a ring gear fixed to the inside of the gear housing, and a sun gear disposed between the sun gear and the ring gear, And planetary gears that revolve around the sun gear while rotating.

According to a preferred embodiment of the present invention, gear shafts inserted into the center of the planet gear are formed on one surface of the output gear, and pinion gears protruding outward through hole of the housing cover are formed on the other surface.

According to a preferred embodiment of the present invention, a center shaft extending through the sun gear and extending to the gear housing is fixed to one surface of the output gear, and a metal bush is fixed to the gear housing to support the rotation of the center shaft.

According to a preferred embodiment of the present invention, a wave washer is positioned between the worm wheel and the metal bush.

According to a preferred embodiment of the present invention, a pivot bush is mounted in the hole of the housing cover to support the output gear.

As described above, the seat driving apparatus using the planetary gear according to the present invention is advantageous in that it has superior durability as compared with the conventional eccentric seat driving apparatus as power transmission and deceleration are performed on the same axis line from the worm wheel to the output gear.

In addition, the reduction ratio can be increased by applying the planetary gear. Accordingly, the user can finely adjust the height of the seat, and in particular, the seat height adjusting device having the seat height adjusting device can reduce the occurrence of noise in the seat height adjustment and enable precise control.

1 is a conceptual diagram of a conventional seat driving apparatus for height adjustment,
2 is another example of a conventional seat height adjusting seat driving apparatus,
3 is an exploded perspective view showing a conventional eccentric seat driving apparatus.
4 is a conceptual view illustrating a height adjustment relation of the seat according to the operation of the seat height adjusting device according to the present invention,
5 is a perspective view showing a seat driving device equipped with the output gear shown in Fig. 4,
Fig. 6 is an exploded perspective view of the seat driving device shown in Fig. 5,
7 is a partial cross-sectional view of the seat driving device shown in Fig.
8 is a conceptual view showing the mounted state of the planetary gear shown in Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a seat driving apparatus and a seat height adjusting apparatus using the planetary gear according to the present invention will be described in detail with reference to the accompanying drawings.

4 is a perspective view illustrating a seat height adjusting device according to an exemplary embodiment of the present invention. FIG. 5 is a perspective view illustrating a seat driving device equipped with the output gear shown in FIG. 6 is an exploded perspective view of the seat driving device shown in Fig. 5, and Fig. 7 is a partial cross-sectional view of the seat driving device shown in Fig. And FIG. 8 is a conceptual view showing the mounted state of the planetary gear shown in FIG.

As shown in Fig. 4, one side of the sector gear 103 is hinged to the side member 101 of the seat height adjusting device mounted on both sides of the seat, and the other side of the sector gear 103 is hinge- And is hinged to a fixing bracket 105 fixed to the bottom of the frame. And the pinion gear 175 of the output gear 170 is mounted on the side member 101 while being meshed with the bent teeth 103T of the sector gear 103. [ Here, the output gear 170 is a gear to which the power of the seat driving apparatus 110 according to the present invention to be described later is output. The seat driving apparatus 110 will be described in detail later, The height change mechanism of the side member 101 according to the rotation of the pinion gear 175 of the seat, that is, the height adjustment mechanism of the seat will be described.

A pair of sector gears 103 are mounted on one side and the other side of the side member 101. As shown in Figs. 4A and 4B, the sector gear 103 has a side member 101 And the other side is hinged to the fixing bracket 105. In this state, when the output gear 170 rotates, the other side of the sector gear 103 is hinged to the fixed bracket 105, so that the output gear 170 rides up the teeth 103T of the sector gear 103 The sector gear 103 turns in the direction in which it stands up. As the sector gear 103 mounted on both sides of the side member 101 is rotated in the direction in which the side gear 101 is raised, the height of the side member 101 becomes higher and the height of the seat becomes higher. Conversely, when the output gear 170 rotates in the reverse direction, the sector gear 103 is laid down and the height of the seat is lowered.

Hereinafter, the seat driving device 110 for transmitting power to the output gear 170 will be described in detail.

5 to 8, the seat driving device 110 includes a gear housing 120 in which a worm gear 121 is embedded and a ring gear 141 is press-fitted and fixed, The sun gear 143 and the sun gear 143 which are located in the interior of the worm wheel 120 and interlocked with each other by the rotation of the worm gear 121 and the worm wheel 130, A planetary gear 140 that rotates along the inner ring of the ring gear 141 and a planet gear 145 that rotates along the inner ring of the ring gear 141, An output gear 170 connected to the gear housing 145S and a housing cover 180 which covers the output gear 170 and is fastened to the gear housing 120 so that the pinion gear 175 of the output gear 170 protrudes outward do.

Hereinafter, a seat driving apparatus constructed as described above will be described in detail.

5 and 6, the gear housing 120 has a worm gear 121 mounted therein and the worm gear 121 is rotatable by a motor 111 mounted on the gear housing 120. As shown in Figs. A worm wheel 130 is housed in the gear housing 120, and the worm wheel 130 rotates in engagement with the worm gear 121.

The sun gear 143 of the planetary gear 140 is fixed to the center of the worm wheel 130. The sun gear 143 is manufactured by sintering and inserted when the worm wheel 130 is manufactured, The worm wheel 130 is integral.

The ring gear 141 of the planetary gear 140 is press-fitted into the gear housing 120 in front of the worm wheel 130 and the sun gear 143 is positioned at the center of the ring gear 141. [ The four planetary gears 145 are held at the same angle with the outer ring of the sun gear 143 and the inner ring of the ring gear 141 meshing with each other.

The output gear 170 includes a central shaft 150 extending rearwardly about the flange 171 and a center shaft 150 extending rearward on one side of the flange 171 and inserted into the center hole 145H of the planetary gear 145 Four gear shafts 145S and a pinion gear 175 formed on the other surface of the flange 171. [ 7, the four gear shafts 145S and the central shaft 150 are forcedly press-fitted into the output gear 170 and the central shaft 150 is inserted into the gear housing 120 And the wave washer 123 is positioned between the worm wheel 130 and the inner surface of the gear housing 120. The worm wheel 130 is fixed to the fixed metal bush 181,

The housing cover 180 is formed with a hole 183 such that the pinion gear 175 of the output gear 170 protrudes outward and a pivot bush 185 is mounted on the inner surface of the hole 183. The housing cover 180 is fastened to the gear housing 120 with the bolts 187 in a state in which the hole 183 of the housing cover 180 penetrates the pinion gear 175.

The pinion gear 175 of the seat driving device 110 configured as described above is positioned in engagement with the teeth 103T of the sector gear 103 as shown in Fig.

Hereinafter, the process of transmitting the power of the motor 111 to the pinion gear 175 will be described in detail.

The worm wheel 121 is rotated by driving the motor 111 mounted on the gear housing 120 and the worm wheel 130 is rotated at the set speed reduction ratio by the rotation of the worm gear 121. The sun gear 143 integrally fixed to the worm wheel 130 is rotated together with the worm wheel 130 so that the four planetary gears 145 located around the sun gear 143 rotate and rotate around the circumference of the sun gear 143 Orbit.

The flange 171 of the output gear 170 fixed to the gear shaft 145S of the planetary gear 145 rotates around the sun gear 143 while the planetary gears 145 rotate, The pinion gear 175 of the output gear 170 rotates. Here, the rotation of the sun gear 143 is largely decelerated while being transmitted to the revolution of the planetary gear 145.

The power of the motor 111 causes the pinion gear 175 to rotate and the side member 101 moves up and down while the sector gear 103 interlocked with the pinion gear 175 rotates as described above .

The use of the planetary gear 140 allows the reduction gear ratio to be greatly reduced and the height of the seat can be precisely adjusted.

The width of the seat driving device 110 can be reduced and the seat driving device 110 can be easily mounted on the side member 101.

In addition, there is an advantage that the emotional quality (occurrence of jamming during operation) is excellent in the actual vehicle state.

101: Side Members
103: sector gear
105: Retaining bracket
110: a seat driving device
111: Motor
120: Gear housing
121: Worm Gear
130: Worm wheel
140: planetary gear
141: Ring gear
143: Sun gear
145: Planetary gear
145S: Gear axis
170: Output gear
175: Pinion gear
180: Housing cover

Claims (12)

A worm gear 121 located inside the gear housing 120 and rotated by the power of the motor 111 mounted on the outside,
A worm wheel 130 that meshes with the worm gear and rotates,
A planetary gear 140 having planet gears 145 that revolve around a sun gear 143 that rotates together with a worm wheel,
An output gear 170 rotated by revolution of the planetary gear 145,
And a housing cover (180) having a hole (183) formed therein so that the pinion gear (175) of the output gear protrudes outward and being fastened and fixed to the gear housing (120).
The method according to claim 1,
The planetary gear is composed of a sun gear fixed to the center of the worm wheel, a ring gear 141 fixed to the inside of the gear housing, and a sun gear disposed between the sun gear and the ring gear, Wherein the planetary gears include planet gears that rotate.
3. The method according to claim 1 or 2,
A gear shaft 145S inserted into the center of the planet gear is formed on one surface of the output gear and a pinion gear 175 is formed on the other surface of the output gear to protrude to the outside of the housing cover through the hole of the housing cover. Driving device.
The method of claim 3,
Wherein a center shaft (150) extending through the sun gear and extending to the gear housing is fixed to one surface of the output gear, and a metal bush (125) is fixed to the gear housing to support rotation of the center shaft.
5. The method of claim 4,
And a wave washer (123) is positioned between the worm wheel and the metal bush.
The method of claim 3,
And a pivot bush (185) is mounted inside the hole of the housing cover to support the output gear.
A side member 101 mounted on both sides of the sheet,
A sector gear 103 having one end hinged to each side of the side member and the other end hinged to a fixing bracket 105 fixed to the vehicle and having a curved tooth,
And an output gear (170) meshing with the teeth of the sector gear. The motor receives the power of the motor mounted on the side member, rotates the output gear, and moves the sheet upward and downward through the sector gear interlocked with the output gear. And a seat driving device (110) for transmitting power through the planetary gear (140)
The seat driving device 110 includes a worm gear 121 which is located inside the gear housing 120 and rotates by the power of the motor 111 mounted on the outside, a worm wheel 130 which is rotated by engaging with the worm gear, A planetary gear 140 having planetary gears 145 for revolving the circumference of a sun gear 143 rotated together with a worm wheel, an output gear 170 rotated by revolution of the planetary gear 145, And a housing cover (180) having a hole (183) formed in such a manner that the pinion gear (175) of the pinion gear (175) protrudes outward and fixed to the gear housing (120).
8. The method of claim 7,
The planetary gear is composed of a sun gear fixed to the center of the worm wheel, a ring gear 141 fixed to the inside of the gear housing, and a sun gear disposed between the sun gear and the ring gear, Wherein the planet gears include planet gears that revolve.
9. The method according to claim 7 or 8,
A gear shaft 145S inserted into the center of the planet gear is formed on one surface of the output gear and a pinion gear 175 is formed on the other surface of the output gear to protrude to the outside of the housing cover through the hole of the housing cover. Driving device.
10. The method of claim 9,
Wherein a center shaft (150) extending through the sun gear and extending to the gear housing is fixed to one surface of the output gear, and a metal bush (125) is fixed to the gear housing to support rotation of the center shaft.
11. The method of claim 10,
And a wave washer (123) is disposed between the worm wheel and the metal bush.
10. The method of claim 9,
And a pivot bush (185) is mounted inside the hole of the housing cover to support the output gear.
KR1020140055397A 2014-05-09 2014-05-09 Seat Drive Apparatus with Planetary Gear and Seat Height Control Apparatus KR20150128286A (en)

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KR1020140055397A KR20150128286A (en) 2014-05-09 2014-05-09 Seat Drive Apparatus with Planetary Gear and Seat Height Control Apparatus

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KR1020140055397A KR20150128286A (en) 2014-05-09 2014-05-09 Seat Drive Apparatus with Planetary Gear and Seat Height Control Apparatus

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101682485B1 (en) * 2016-06-20 2016-12-05 주식회사 글로벌체인모터 reducer
CN109645733A (en) * 2019-01-28 2019-04-19 青岛乐悠悠童车有限公司 A kind of track type electric swing chair structure
KR20200062734A (en) * 2018-11-27 2020-06-04 대동모벨시스템 주식회사 Dual release actuator of seat for vehicle
KR102245307B1 (en) 2020-08-19 2021-04-27 주식회사 신도 Manufacturing Method Of Pinion Gear For Adjusting Automobile Seat And Pinion Gear Manufactured Thereby
WO2023059303A1 (en) * 2021-10-06 2023-04-13 Tanatar Kalip Pres Isleri Sanayi Ve Ticaret Limited Sirketi Electric chair movement motor with reducer mechanism

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101682485B1 (en) * 2016-06-20 2016-12-05 주식회사 글로벌체인모터 reducer
KR20200062734A (en) * 2018-11-27 2020-06-04 대동모벨시스템 주식회사 Dual release actuator of seat for vehicle
CN109645733A (en) * 2019-01-28 2019-04-19 青岛乐悠悠童车有限公司 A kind of track type electric swing chair structure
CN109645733B (en) * 2019-01-28 2023-10-24 青岛乐悠悠家居有限公司 Rail-mounted electric swing chair structure
KR102245307B1 (en) 2020-08-19 2021-04-27 주식회사 신도 Manufacturing Method Of Pinion Gear For Adjusting Automobile Seat And Pinion Gear Manufactured Thereby
WO2023059303A1 (en) * 2021-10-06 2023-04-13 Tanatar Kalip Pres Isleri Sanayi Ve Ticaret Limited Sirketi Electric chair movement motor with reducer mechanism

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