WO2024090734A1 - Dispositif coulissant long pour siège de véhicule - Google Patents

Dispositif coulissant long pour siège de véhicule Download PDF

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Publication number
WO2024090734A1
WO2024090734A1 PCT/KR2023/010978 KR2023010978W WO2024090734A1 WO 2024090734 A1 WO2024090734 A1 WO 2024090734A1 KR 2023010978 W KR2023010978 W KR 2023010978W WO 2024090734 A1 WO2024090734 A1 WO 2024090734A1
Authority
WO
WIPO (PCT)
Prior art keywords
lead screw
vehicle seat
bushing
key
sliding device
Prior art date
Application number
PCT/KR2023/010978
Other languages
English (en)
Korean (ko)
Inventor
조찬기
박건영
황범진
이세환
Original Assignee
주식회사 디에스시동탄
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 디에스시동탄 filed Critical 주식회사 디에스시동탄
Publication of WO2024090734A1 publication Critical patent/WO2024090734A1/fr

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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
    • B60N2/06—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 slidable
    • B60N2/067—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 slidable by linear actuators, e.g. linear screw mechanisms
    • 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
    • B60N2/06—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 slidable
    • 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
    • B60N2/06—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 slidable
    • B60N2/07—Slide construction
    • 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

Definitions

  • the Present Disclosure relates to a sliding device for a vehicle seat.
  • a vehicle seat is configured to slide in the front and rear direction of the vehicle by a sliding device provided on the floor panel of the vehicle.
  • Korean Patent Publication No. 10-2234643 discloses a seat track structure for automobiles.
  • the seat track structure disclosed in the same publication includes a lower rail (100); A lead screw 200 coupled to the front bracket 210 and the rear bracket 220 installed on the lower rail 100 and installed in the longitudinal direction of the lower rail 100; An upper rail (300) slidably installed on the lower rail (100); And a gearbox housing 410 that moves in the front and rear directions on the lead screw 200 and has a worm shaft and a worm wheel nut installed orthogonally therein, and supports the gearbox housing 410 and the upper rail ( A gearbox (composed of a middle bracket 420 coupled to 300) and a guide bush 430 interposed between the gearbox housing 410 and the middle bracket 420 to block the flow of the gearbox housing 410. 400); includes.
  • the lead screw is supported only by the front bracket and rear bracket installed on the lower rail. For this reason, when the sliding length of the vehicle seat increases due to increased passenger convenience and the use of self-driving cars, the length of the lead screw also increases, causing a problem in which the lead screw sags downward due to its own load.
  • the problem that the present disclosure aims to solve is to provide a long sliding device for a vehicle seat with improved quality by reducing the force required to slide the vehicle seat in the front and rear directions.
  • a long sliding device for a vehicle seat includes an outrail; A lead screw provided inside the outrail; an inner rail supported on the outrail and provided to move along the lead screw;
  • the inner rail includes a gearbox whose lower part is engaged with the lead screw;
  • the gearbox of the long sliding device for a vehicle seat includes a case disposed perpendicular to the lead screw; A worm gear provided on the inner top of the case and rotated by a motor; A worm wheel nut is provided at the inner bottom of the case, the inner side is engaged with the lead screw, and the outer side has a helical shape; One or more helical gears provided on the inside of the case, arranged between the worm gear and the worm wheel nut, and transmitting power between the worm gear and the worm wheel nut; A driven shaft provided on the inside of the case and provided on each of one or more helical gears; Inner bushings provided at both ends of each driven shaft; and an outer bushing that is provided inside the case and is provided on both ends of each driven shaft, and accommodates the inner bushing and the driven shaft.
  • a key is formed on the outer peripheral surface of the inner bushing of the long sliding device for a vehicle seat according to the embodiment, a key groove for receiving the key of the inner bushing is formed on the inner peripheral surface of the outer bushing, a key is formed on the outer peripheral surface, and the outer peripheral surface of the case is formed.
  • a key groove may be formed to accommodate the key of the bushing.
  • the key of the inner bushing of the long sliding device for a vehicle seat may be formed in a semicircular shape.
  • the long sliding device for a vehicle seat does not cause sagging of the lead screw due to the load of the lead screw even if the sliding device is configured with a long lead screw.
  • the lead screw and gearbox do not twist, reducing the force required to slide the vehicle seat forward and backward, and improving noise problems.
  • FIG. 1 is a perspective view of a long sliding device for a vehicle seat according to an embodiment.
  • FIG. 2 is a cross-sectional view of FIG. 1 taken along line A-A'.
  • Figure 3 is an exploded view of a gearbox meshed with a lead screw according to an embodiment.
  • Figure 4 is a partially exploded view of a gearbox according to an embodiment.
  • Figure 5 is a diagram showing the operating state of a gearbox according to an embodiment.
  • Figure 1 is a perspective view of a long sliding device 10 for a vehicle seat (hereinafter referred to as 'sliding device 10') according to an embodiment
  • Figure 2 which is a cross-sectional view of Figure 1 cut along line A-A'
  • the sliding The device 10 includes an outrail 100, a lead screw 200, and an inner rail 300.
  • the outrail 100 is provided on a floor panel (not shown) that forms the interior of the vehicle, and is installed in the front and rear directions of the vehicle.
  • the lead screw 200 is provided inside the outrail 100 in the front and rear direction of the vehicle. Specifically, both ends of the lead screw 200 are coupled to the front bracket 210 and the rear bracket 220 installed inside the outrail 100 to be spaced apart along the length direction.
  • the inner rail 300 is supported on the outer rail 100 and is provided to move along the lead screw 200.
  • the inner rail 300 includes a gearbox 310, a housing 320, and a leadscrew guide 330.
  • the lower part of the gearbox 310 is engaged with the lead screw 200 and is movable along the lead screw 200.
  • the gearbox 310 includes a case 311, a worm gear 312, a worm wheel nut 313, It includes a helical gear 314, a driven shaft 315, an inner bushing 316, and an outer bushing 317.
  • the case 311 is disposed perpendicular to the lead screw 200 and is formed so that the lead screw 200 can penetrate the lower portion.
  • the case 311 is supported by the outrail 100 to withstand the load of the vehicle seat (not shown) and the driver.
  • the outrail 100 can reduce the load applied between the gearbox 310 and the lead screw 200.
  • the height of the case 311 may vary depending on the gap between the vehicle seat and the lead screw 200.
  • the worm gear 312 is provided on the inner top of the case 311 and is rotated by a motor (not shown).
  • the worm wheel nut 313 is provided at the inner bottom of the case 311, and the inside of the worm wheel nut 313 is engaged with the lead screw 200.
  • the outer side of the worm wheel nut 313 has a helical shape and meshes with the helical gear 314.
  • One or more helical gears 314 are provided inside the case 311 and are disposed between the worm gear 312 and the worm wheel nut 313. When a plurality of helical gears 314 are provided, they are arranged in a line perpendicular to the lead screw 200.
  • the helical gear 314 transmits power between the worm gear 312 and the worm wheel nut 313.
  • the worm wheel nut 313 engaged with the lowermost helical gear 314 is rotated, so the inside of the worm wheel nut 313 is rotated by the lead screw 200.
  • the lead screw 200 is fixed inside the outrail 100, and the worm wheel nut 313 moves in the axial direction of the lead screw 200.
  • the driven shaft 315 is provided on each helical gear 314.
  • the driven shaft 315 is disposed in an exposed manner on the left and right sides of the helical gear 314.
  • the driven shaft 315 may be key-keyway coupled to rotate together with the helical gear 314, or may be injection molded integrally with the helical gear 314.
  • the inner bushing 316 is located inside the case 311 and is provided at both ends of each driven shaft 315.
  • the inner bushing 316 may be composed of an inner bushing body 316a and a key 316b.
  • the key 316b of the inner bushing 316 is formed on the outer peripheral surface of the inner bushing body 316a and may be formed in a semicircular shape.
  • the outer bushing 317 is provided at both ends of each driven shaft 315, and accommodates the driven shaft 315 and the inner bushing 316. That is, the outer bushing 317 is arranged to surround the driven shaft 315 and the inner bushing 316. Accordingly, the inner peripheral surface of the outer bushing 317 preferably has a longer diameter than the outer peripheral surface of the inner bushing 316.
  • the outer bushing 317 may be composed of an outer bushing body 317a, a key 317b, and a key groove 317c.
  • the key groove 317c of the outer bushing 317 is formed on the inner peripheral surface of the outer bushing body 317a and is formed to correspond to the key 316b of the inner bushing 316.
  • a key 317b may be formed on the outer peripheral surface of the outer bushing body 317a, and a key groove 311a corresponding to the key 317b of the outer bushing 317 may be formed inside the case 311.
  • the inner bushing 316 has a key ( It can be moved at a predetermined angle based on 316b).
  • a keyway 311a corresponding to the key 317b of the outer bushing 317 is formed on the inside of the case 311, and the keyway 311a of the case 310 is the key 317b of the outer bushing 317. It accommodates the rotation of the outer bushing 317 and prevents the outer bushing 317 from shaking due to the helical gear 314.
  • the housing 320 has a predetermined length in the longitudinal direction of the lead screw 200 and supports the gearbox 310.
  • a pair of housings 320 may be provided to support the gearbox 310. Additionally, the housing 320 is supported on the outrail 100 and moves together when the gearbox 310 moves in the longitudinal direction of the lead screw 200.
  • Rollers or casters may be provided on the lower outer surface of the housing 320 located inside the outrail 100 to facilitate movement on the outrail 100.
  • the leadscrew guide 330 is provided on both sides of the housing 320 in the longitudinal direction and surrounds the lead screw 200. Specifically, the leadscrew guide 330 is provided on both sides of the housing 320 in the longitudinal direction and is located on the inner lower side of the housing 320. Additionally, a through hole capable of accommodating the lead screw 200 is formed inside the lead screw guide 330.
  • the leadscrew guide 330 is provided on both sides of the housing 320 in the longitudinal direction and functions to prevent the lead screw 200 from sagging toward the ground due to a load. That is, when the gearbox 310 moves in the longitudinal direction of the leadscrew 200, the leadscrew guide 330 moves with the housing 320 to support the leadscrew 200 and to ensure that the leadscrew 200 is subject to load. It functions to prevent sagging toward the ground.
  • the sliding device 10 described above is provided with a lead screw guide 330 that moves together with the housing 320 and prevents the lead screw 200 from sagging. For this reason, even if the sliding device 10 is constructed with a long lead screw 200, the lead screw 200 does not sag due to the load of the lead screw 200. That is, since distortion does not occur between the lead screw 200 and the gearbox 310, the force required to slide the vehicle seat in the forward and backward directions is reduced, and the noise problem is improved.
  • the long sliding device for a vehicle seat according to the embodiment does not cause sagging of the lead screw due to the load of the lead screw even if the sliding device is configured with a long lead screw, so it is similar to the prior art (Korean Patent Registration No. 10-2234643). It has the effect of preventing distortion of the lead screw and gearbox compared to (#). As a result, the force required to slide the vehicle seat forward and backward is reduced, and the noise problem is improved.

Landscapes

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

Abstract

La présente invention concerne un dispositif coulissant long pour un siège de véhicule, le dispositif coulissant long réduisant la force requise pour faire coulisser le siège de véhicule en avant et en arrière, et étant ainsi de qualité supérieure. Le dispositif coulissant long pour le siège de véhicule selon un mode de réalisation comprend : un rail externe ; une vis-mère disposée à l'intérieur du rail externe ; et un rail interne qui est supporté par le rail externe et peut se déplacer le long de la vis-mère. Le rail interne comprend : une boîte de vitesses, dont une partie inférieure vient en prise avec la vis-mère ; un boîtier qui présente une certaine longueur dans la direction longitudinale de la vis-mère, est supporté par le rail externe, et supporte la boîte de vitesses ; et des guides de vis-mère qui sont disposés sur les deux côtés du boîtier dans la direction longitudinale et entourent la vis-mère.
PCT/KR2023/010978 2022-10-26 2023-07-27 Dispositif coulissant long pour siège de véhicule WO2024090734A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2022-0138911 2022-10-26
KR1020220138911A KR20240058302A (ko) 2022-10-26 2022-10-26 차랑용 시트의 롱 슬라이딩 장치

Publications (1)

Publication Number Publication Date
WO2024090734A1 true WO2024090734A1 (fr) 2024-05-02

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ID=90831202

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Application Number Title Priority Date Filing Date
PCT/KR2023/010978 WO2024090734A1 (fr) 2022-10-26 2023-07-27 Dispositif coulissant long pour siège de véhicule

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KR (1) KR20240058302A (fr)
WO (1) WO2024090734A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001239861A (ja) * 2000-02-28 2001-09-04 Johnson Controls Automotive Systems Corp シートスライド装置
WO2008070646A2 (fr) * 2006-12-04 2008-06-12 Johnson Controls Technology Company Ensemble de commande mécanique monté à l'avant
KR101576382B1 (ko) * 2014-07-25 2015-12-11 현대다이모스(주) 기어 박스
KR20190083763A (ko) * 2018-01-05 2019-07-15 주식회사 인팩 차량용 슬라이딩 기어박스
CN214607185U (zh) * 2021-03-05 2021-11-05 佛吉亚(无锡)座椅部件有限公司 一种滑轨驱动机构

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102234643B1 (ko) 2020-12-21 2021-04-01 (주)에이테크오토모티브 자동차용 시트트랙 구조

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001239861A (ja) * 2000-02-28 2001-09-04 Johnson Controls Automotive Systems Corp シートスライド装置
WO2008070646A2 (fr) * 2006-12-04 2008-06-12 Johnson Controls Technology Company Ensemble de commande mécanique monté à l'avant
KR101576382B1 (ko) * 2014-07-25 2015-12-11 현대다이모스(주) 기어 박스
KR20190083763A (ko) * 2018-01-05 2019-07-15 주식회사 인팩 차량용 슬라이딩 기어박스
CN214607185U (zh) * 2021-03-05 2021-11-05 佛吉亚(无锡)座椅部件有限公司 一种滑轨驱动机构

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KR20240058302A (ko) 2024-05-03

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