KR20240058301A - Gear box - Google Patents

Gear box Download PDF

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Publication number
KR20240058301A
KR20240058301A KR1020220138910A KR20220138910A KR20240058301A KR 20240058301 A KR20240058301 A KR 20240058301A KR 1020220138910 A KR1020220138910 A KR 1020220138910A KR 20220138910 A KR20220138910 A KR 20220138910A KR 20240058301 A KR20240058301 A KR 20240058301A
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KR
South Korea
Prior art keywords
case
bushing
key
driven shaft
gearbox
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Application number
KR1020220138910A
Other languages
Korean (ko)
Inventor
조찬기
박건영
황범진
이세환
Original Assignee
주식회사 디에스시동탄
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Application filed by 주식회사 디에스시동탄 filed Critical 주식회사 디에스시동탄
Priority to KR1020220138910A priority Critical patent/KR20240058301A/en
Priority to PCT/KR2023/010976 priority patent/WO2024090733A1/en
Publication of KR20240058301A publication Critical patent/KR20240058301A/en

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    • 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
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/028—Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise
    • 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
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246—Electric motors therefor
    • 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
    • B60N2/067—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
    • 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
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw 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
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • 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
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • 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
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/039—Gearboxes for accommodating worm gears

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Gear Transmission (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)

Abstract

실시예에 따른 기어박스는, 리드스크류에 수직으로 배치되는 케이스; 케이스의 내측 상단에 구비되며, 모터에 의해 회전되는 웜기어; 케이스의 내측 하단에 구비되며, 내측이 리드스크류에 치합되며, 외측이 헬리컬 형상을 갖는 웜휠너트; 케이스의 내측에 구비되며, 웜기어과 웜휠너트 사이에 나열되고, 웜기어과 웜휠너트 사이의 동력을 전달하는 하나 이상의 헬리컬기어; 케이스의 내측에 구비되며, 하나 이상의 헬리컬기어 각각에 구비되는 종동축; 각각의 종동축의 양단 각각에 구비되는 내측 부싱; 및 케이스 내측에 구비되며 각각의 종동축의 양단 각각에 구비되고, 내측 부싱과 종동축을 수용하는 외측 부싱;을 포함한다.A gearbox according to an embodiment includes a case disposed perpendicular to a 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.

Description

기어박스{GEAR BOX}Gearbox{GEAR BOX}

본 개시(The Present Disclosure)는 차량 시트에 설치되는 기어박스에 관한 것이다.The Present Disclosure relates to a gearbox installed in a vehicle seat.

기어박스는 시트 아래에 설치되어, 시트의 전후 이동에 사용된다. 한국등록특허공보 제10-2024526호에는 기어박스의 일례가 게재되어 있다.The gearbox is installed under the seat and is used to move the seat back and forth. An example of a gearbox is published in Korean Patent Publication No. 10-2024526.

기어박스는 플로어 패드로부터 차량 시트의 위치가 높아지게 설계됨에 따라, 기어박스 내에 헬리컬기어의 수를 늘려 높이를 변화시키고 있다. 다만, 헬리컬기어는 축 방향으로 추력이 발생되어, 기어박스는 헬리컬기어와 기어박스 내부 간 축 방향으로 충돌로 인해 소음이 발생되는 문제점이 있다.As the gearbox is designed to raise the position of the vehicle seat from the floor pad, the height is changed by increasing the number of helical gears in the gearbox. However, since the helical gear generates thrust in the axial direction, the gearbox has a problem in that noise is generated due to collision between the helical gear and the inside of the gearbox in the axial direction.

KRKR 10-20204526 10-20204526 B1B1 (2019.09.24.(2019.09.24. 공고)Announcement)

헬리컬기어의 축 방향으로의 충돌로 인한 소음을 감쇠시킬 수 있는 기어박스를 제공하고자 한다.The aim is to provide a gearbox that can attenuate noise caused by collisions in the axial direction of helical gears.

실시예에 따른 기어박스는, 리드스크류에 수직으로 배치되는 케이스; 케이스의 내측 상단에 구비되며, 모터에 의해 회전되는 웜기어; 케이스의 내측 하단에 구비되며, 내측이 리드스크류에 치합되며, 외측이 헬리컬 형상을 갖는 웜휠너트; 케이스의 내측에 구비되며, 웜기어과 웜휠너트 사이에 나열되고, 웜기어과 웜휠너트 사이의 동력을 전달하는 하나 이상의 헬리컬기어; 케이스의 내측에 구비되며, 하나 이상의 헬리컬기어 각각에 구비되는 종동축; 각각의 종동축의 양단 각각에 구비되는 내측 부싱; 및 케이스 내측에 구비되며 각각의 종동축의 양단 각각에 구비되고, 내측 부싱과 종동축을 수용하는 외측 부싱;을 포함한다.A gearbox according to an embodiment includes a case disposed perpendicular to a 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.

실시예에 따른 내측 부싱의 외주면에는 키가 형성될 수 있다.A key may be formed on the outer peripheral surface of the inner bushing according to the embodiment.

실시예에 따른 외측 부싱의 내주면에는 내측 부싱의 키를 수용하는 키홈이 형성될 수 있고, 외주면에는 키가 형성될 수 있다.A key groove that accommodates the key of the inner bushing may be formed on the inner peripheral surface of the outer bushing according to the embodiment, and a key may be formed on the outer peripheral surface.

실시예에 따른 케이스에는 외측 부싱의 키를 수용하는 키홈이 형성될 수 있다.A key groove that accommodates the key of the outer bushing may be formed in the case according to the embodiment.

실시예에 따른 내측 부싱의 키는 반원 형태로 형성될 수 있다.The key of the inner bushing according to the embodiment may be formed in a semicircular shape.

실시예에 따른 기어박스는 헬리컬기어의 축 방향으로 발생되는 소음을 저감시킬 수 있다.The gearbox according to the embodiment can reduce noise generated in the axial direction of the helical gear.

실시예에 따른 기어박스는 헬리컬기어의 축 방향으로 생기는 유격을 개선할 수 있다.The gearbox according to the embodiment can improve the clearance that occurs in the axial direction of the helical gear.

도 1은 실시예에 따른 기어박스의 사시도이다.
도 2은 실시예에 따른 기어박스의 분해도이다.
도 3는 실시예에 따른 기어박스의 부분분해도이다.
도 4는 실시예에 따른 기어박스의 사용예를 나타낸 도면이다.1 is a perspective view of a gearbox according to an embodiment.
Figure 2 is an exploded view of a gearbox according to an embodiment.
Figure 3 is a partially exploded view of a gearbox according to an embodiment.
Figure 4 is a diagram showing an example of use of a gearbox according to an embodiment.

본 개시의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다. 그러나 본 개시는 이하에서 개시되는 실시예들에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 수 있으며, 단지 본 실시예들은 본 개시가 완전하도록 하고, 본 개시가 속하는 기술분야에서 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이며, 본 개시는 청구항의 범주에 의해 정의될 뿐이다. 명세서 전체에 걸쳐 동일 참조 부호는 동일 구성요소를 지칭한다.The advantages and features of the present disclosure and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present disclosure is not limited to the embodiments disclosed below and may be implemented in various different forms. The present embodiments are merely provided to ensure that the present disclosure is complete and to those skilled in the art to which the present disclosure pertains. It is provided to fully inform the person of the scope of the invention, and the present disclosure is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

아래의 도면을 참조하여, 실시예에 따른 기어박스(100)(이하, '기어박스(100)'이라 함)를 구체적으로 설명한다.With reference to the drawings below, the gearbox 100 (hereinafter referred to as 'gearbox 100') according to the embodiment will be described in detail.

도 1은 기어박스(100)의 사시도이며, 도 2는 기어박스(100)의 분해도이며, 도 3은 기어박스(100)의 부분분해도이며, 도 4는 기어박스(100)의 사용예를 나타낸 도면이다.Figure 1 is a perspective view of the gearbox 100, Figure 2 is an exploded view of the gearbox 100, Figure 3 is a partially exploded view of the gearbox 100, and Figure 4 shows an example of use of the gearbox 100. It is a drawing.

도 1과 도 2를 참조하면, 기어박스(100)는 케이스(110), 웜기어(120), 웜휠너트(130), 헬리컬기어(140), 종동축(150), 내측 부싱(160), 외측 부싱(170)을 포함한다.Referring to Figures 1 and 2, the gearbox 100 includes a case 110, a worm gear 120, a worm wheel nut 130, a helical gear 140, a driven shaft 150, an inner bushing 160, and an outer Includes bushing 170.

도 1을 참조하면, 케이스(110)는 리드스크류(200)에 수직으로 배치되며, 차량의 시트(미도시)와 리드스크류(200) 사이에 배치되며, 차량의 시트와 운전자의 하중을 견딜 수 있도록, 어퍼레일(300)에 의해 지지된다. 참고로, 어퍼레일(300)은 고정레일(미도시)에 의해 받쳐진 상태로 배치되어 기어박스(100)를 리드스크류(200)로부터 소정 간격 이격되도록 받치고 있어, 기어박스(100)와 리드스크류(200) 사이에 걸리는 힘을 감소시킬 수 있다.Referring to FIG. 1, the case 110 is disposed perpendicular to the leadscrew 200, is disposed between the vehicle seat (not shown) and the lead screw 200, and is capable of withstanding the load of the vehicle seat and driver. It is supported by the upper rail 300. For reference, the upper rail 300 is arranged in a supported state by a fixed rail (not shown) and supports the gearbox 100 at a predetermined distance from the lead screw 200, so that the gear box 100 and the lead screw (200) The force applied between them can be reduced.

케이스(110)는 차량의 시트와 리드스크류(200) 사이의 간격에 따라 높이가 달라질 수 있다. The height of the case 110 may vary depending on the gap between the vehicle seat and the lead screw 200.

도 2를 참조하면, 웜기어(120)는 케이스(110)의 내측 상단에 구비되고, 모터(미도시)에 의해 회전된다.Referring to FIG. 2, the worm gear 120 is provided on the upper inner side of the case 110 and is rotated by a motor (not shown).

웜휠너트(130)는 케이스(110)의 내측 하단에 구비된다. 웜휠너트(130)의 내측은 리드스크류(200)에 치합되고, 웜휠너트(130)의 외측은 헬리컬 형상을 갖는다.The worm wheel nut 130 is provided at the inner bottom of the case 110. The inside of the worm wheel nut 130 is engaged with the lead screw 200, and the outside of the worm wheel nut 130 has a helical shape.

헬리컬기어(140)는 케이스(110)의 내측에 하나 이상으로 구비되며, 웜기어(120)와 웜휠너트(130) 사이에 나열된다.One or more helical gears 140 are provided inside the case 110 and are arranged between the worm gear 120 and the worm wheel nut 130.

헬리컬기어(140)는 웜기어(120)와 웜휠너트(130) 사이에서 동력을 전달한다.The helical gear 140 transmits power between the worm gear 120 and the worm wheel nut 130.

웜휠너트(130)가 리드스크류(200)의 축 방향으로 이동되는 과정을 살펴보면, 원동축에 결합된 웜기어(120)가 회전 시, 웜기어(120)와 치합되도록 배치된 헬리컬기어(140)가 회전된다. 헬리컬기어(140)는 웜기어(120)와 웜휠너트(130) 사이에 나열되어, 각각의 헬리컬기어(140)는 모두 회전된다. Looking at the process in which the worm wheel nut 130 moves in the axial direction of the lead screw 200, when the worm gear 120 coupled to the main shaft rotates, the helical gear 140 arranged to mesh with the worm gear 120 rotates. do. The helical gears 140 are arranged between the worm gear 120 and the worm wheel nut 130, and each helical gear 140 rotates.

이에 따라, 웜휠너트(130)의 외측이 헬리컬기어(140)와 치합되도록 배치되어 회전되므로, 웜휠너트(130)의 내측은 리드스크류(200)에서 회전된다. 이때 리드스크류(200)는 고정되어 있어, 웜휠너트(130)가 리드스크류(200)의 축 방향으로 이동된다.Accordingly, since the outer side of the worm wheel nut 130 is arranged and rotated to mesh with the helical gear 140, the inner side of the worm wheel nut 130 is rotated by the lead screw 200. At this time, the lead screw 200 is fixed, and the worm wheel nut 130 moves in the axial direction of the lead screw 200.

도 3은 헬리컬기어(140), 종동축(150), 내측 부싱(160) 및 외측 부싱(170)의 결합관계를 나타낸 부분확대도이다.Figure 3 is a partially enlarged view showing the coupling relationship between the helical gear 140, driven shaft 150, inner bushing 160, and outer bushing 170.

도 3을 참조하면, 종동축(150)은 헬리컬기어(140) 각각에 구비된다. 종동축(150)은 헬리컬기어(140)의 좌측면과 우측면에 노출된 형태로 배치된다. 종동축(150)은 헬리컬기어(140)와 연결되도록 키-키홈 결합될 수도 있으며, 헬리컬기어(140)와 일체로 사출 성형될 수도 있다.Referring to FIG. 3, the driven shaft 150 is provided on each helical gear 140. The driven shaft 150 is disposed in an exposed manner on the left and right sides of the helical gear 140. The driven shaft 150 may be key-keyway coupled to be connected to the helical gear 140, or may be injection molded integrally with the helical gear 140.

도 2를 참조하면, 내측 부싱(160)은 케이스(110)의 내측에 위치하고, 각각의 종동축(150)의 양단 각각에 구비된다.Referring to FIG. 2, the inner bushing 160 is located inside the case 110 and is provided at both ends of each driven shaft 150.

외측 부싱(170)은 각각의 종동축(150)의 양단 각각에 구비되고, 내측 부싱(160)과 종동축(150)을 수용한다. 다시 말해, 외측 부싱(170)은 내측 부싱(160)과 종동축(150)을 감싸고 있는 형태로 배치된다. 다만, 외측 부싱(170)의 내주면은 내측 부싱(160)의 외주면보다 긴 직경을 가지고 있는 것이 바람직하다.The outer bushing 170 is provided at both ends of each driven shaft 150 and accommodates the inner bushing 160 and the driven shaft 150. In other words, the outer bushing 170 is arranged to surround the inner bushing 160 and the driven shaft 150. However, it is preferable that the inner peripheral surface of the outer bushing 170 has a longer diameter than the outer peripheral surface of the inner bushing 160.

도 3을 다시 참조하면, 내측 부싱(160)에는 외주면에 키(162)가 형성되어, 내측 부싱(160)은 내측 부싱 본체(161)와 키(162)로 구성될 수 있다. 내측 부싱(160)의 키(162)는 반원 형태를 형성될 수 있다.Referring again to FIG. 3, a key 162 is formed on the outer peripheral surface of the inner bushing 160, and the inner bushing 160 may be composed of an inner bushing body 161 and a key 162. The key 162 of the inner bushing 160 may have a semicircular shape.

외측 부싱(170)의 내주면에는 내측 부싱(160)의 키(162)에 대응되는 키홈(173)이 형성될 수 있으며, 외측 부싱(170)의 외주면에는 케이스(110)에 대응되는 키(172)가 형성될 수 있어, 외측 부싱(170)은 외측 부싱 본체(171), 키(172) 및 키홈(173)로 구성될 수 있다.A key groove 173 corresponding to the key 162 of the inner bushing 160 may be formed on the inner peripheral surface of the outer bushing 170, and a key 172 corresponding to the case 110 may be formed on the outer peripheral surface of the outer bushing 170. Can be formed, so the outer bushing 170 can be composed of an outer bushing body 171, a key 172, and a key groove 173.

도 4는 헬리컬기어(140)가 회전됨에 따라, 외측 부싱(170) 내에서 내측 부싱(160)의 사용예를 나타낸 도면이다.Figure 4 is a diagram showing an example of use of the inner bushing 160 within the outer bushing 170 as the helical gear 140 rotates.

도 4를 참조하면, 내측 부싱(160)의 키(162)가 외측 부싱(170)의 키홈(173)에 위치됨에 따라, 내측 부싱(160)은 키(162)를 기준으로 소정의 각도로 움직일 수 있다.Referring to FIG. 4, as the key 162 of the inner bushing 160 is located in the key groove 173 of the outer bushing 170, the inner bushing 160 moves at a predetermined angle based on the key 162. You can.

따라서 헬리컬기어(140)는 회전됨에 따라, 축 방향으로 추력이 발생되어, 종동축(150)은 내측 부싱(160)과 접촉된다. 내측 부싱(160)은 외측 부싱(170) 내에서 진동되어, 종동축(150)의 추력을 감소시킬 수 있다. 또한, 내측 부싱(160)은 종동축(150)이 외측 부싱(170)을 가압하며 발생하는 소음을 시킬 수 있다.Therefore, as the helical gear 140 rotates, thrust is generated in the axial direction, and the driven shaft 150 comes into contact with the inner bushing 160. The inner bushing 160 may be vibrated within the outer bushing 170 to reduce the thrust of the driven shaft 150. Additionally, the inner bushing 160 may make noise generated when the driven shaft 150 presses the outer bushing 170.

그리고 케이스(110)의 내측에는 외측 부싱(170)의 키(172)에 대응되는 키홈(111)이 형성될 수 있다.And a key groove 111 corresponding to the key 172 of the outer bushing 170 may be formed inside the case 110.

도 2를 참조하면, 케이스(110)의 키홈(111)은 외측 부싱(170)의 키(172)를 수용하여 외측 부싱(170)의 회전을 저지하고 있어, 외측 부싱(170)이 헬리컬기어(140)에 의해 떨리는 현상을 방지할 수 있다.Referring to Figure 2, the key groove 111 of the case 110 accommodates the key 172 of the outer bushing 170 and prevents the rotation of the outer bushing 170, so that the outer bushing 170 is a helical gear ( 140), the shaking phenomenon can be prevented.

100 : 기어박스
110 : 케이스
120 : 웜기어
130 : 웜휠너트
140 : 헬리컬기어
150 : 종동축
160 : 내측 부싱
170 : 외측 부싱
200 : 리드스크류
300 : 어퍼레일100: Gearbox
110: case
120: worm gear
130: Worm wheel nut
140: helical gear
150: driven shaft
160: inner bushing
170: outer bushing
200: Lead screw
300: Upper rail

Claims (3)

리드스크류에 수직으로 배치되는 케이스;
상기 케이스의 내측 상단에 구비되며, 모터에 의해 회전되는 웜기어;
상기 케이스의 내측 하단에 구비되며, 내측이 리드스크류에 치합되며, 외측이 헬리컬 형상을 갖는 웜휠너트;
상기 케이스의 내측에 구비되며, 상기 웜기어과 상기 웜휠너트 사이에 나열되고, 상기 웜기어과 상기 웜휠너트 사이의 동력을 전달하는 하나 이상의 헬리컬기어;
상기 케이스의 내측에 구비되며, 하나 이상의 상기 헬리컬기어 각각에 구비되는 종동축;
각각의 상기 종동축의 양단 각각에 구비되는 내측 부싱; 및
상기 케이스 내측에 구비되며 각각의 상기 종동축의 양단 각각에 구비되고, 상기 내측 부싱과 상기 종동축을 수용하는 외측 부싱;을 포함하는, 기어박스.Case positioned perpendicular to the leadscrew;
a worm gear provided at the inner top of the case and rotated by a motor;
a worm wheel nut provided at the inner bottom of the case, the inner side engaged with the lead screw, and the outer side having a helical shape;
One or more helical gears provided inside 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 inside the case and provided in each of the one or more helical gears;
Inner bushings provided at both ends of each of the driven shafts; and
A gearbox comprising: an outer bushing provided inside the case and provided at both ends of each driven shaft, and accommodating the inner bushing and the driven shaft. 제1항에 있어서,
상기 내측 부싱의 외주면에는 키가 형성되고,
상기 외측 부싱의 내주면에는 상기 내측 부싱의 상기 키를 수용하는 키홈이 형성되고, 외주면에는 키가 형성되고,
상기 케이스에는 상기 외측 부싱의 상기 키를 수용하는 키홈이 형성되는, 기어박스.According to paragraph 1,
A key is formed on the outer peripheral surface of the inner bushing,
A key groove for receiving the key of the inner bushing is formed on the inner peripheral surface of the outer bushing, and a key is formed on the outer peripheral surface,
A gearbox in which a key groove for receiving the key of the outer bushing is formed in the case. 제2항에 있어서,
상기 내측 부싱의 상기 키는 반원 형태로 형성되는, 기어박스.According to paragraph 2,
The gearbox, wherein the key of the inner bushing is formed in the shape of a semicircle.
KR1020220138910A 2022-10-26 2022-10-26 Gear box KR20240058301A (en)

Priority Applications (2)

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KR1020220138910A KR20240058301A (en) 2022-10-26 2022-10-26 Gear box
PCT/KR2023/010976 WO2024090733A1 (en) 2022-10-26 2023-07-27 Gearbox

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KR1020220138910A KR20240058301A (en) 2022-10-26 2022-10-26 Gear box

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200004526A (en) 2018-07-04 2020-01-14 주식회사 유비테크 Manufacturing method of uv paint coating layer on film

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KR101863711B1 (en) * 2016-06-29 2018-06-04 주식회사 다스 Gear box for seat sliding device in vehicle
JP2018083520A (en) * 2016-11-24 2018-05-31 アイシン精機株式会社 Vehicular steering system
JP2018193007A (en) * 2017-05-19 2018-12-06 トヨタ紡織株式会社 Sliding device
KR101920222B1 (en) * 2017-05-25 2018-11-20 주식회사 오스템 Gear box for electromotive seat track
KR102061493B1 (en) * 2018-05-14 2020-01-02 이종명 Gearbox on vehicle seat adjustment rail

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200004526A (en) 2018-07-04 2020-01-14 주식회사 유비테크 Manufacturing method of uv paint coating layer on film

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