KR101147219B1 - Bicycle transmission - Google Patents

Bicycle transmission Download PDF

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Publication number
KR101147219B1
KR101147219B1 KR1020100002153A KR20100002153A KR101147219B1 KR 101147219 B1 KR101147219 B1 KR 101147219B1 KR 1020100002153 A KR1020100002153 A KR 1020100002153A KR 20100002153 A KR20100002153 A KR 20100002153A KR 101147219 B1 KR101147219 B1 KR 101147219B1
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KR
South Korea
Prior art keywords
coupled
gear
sun gear
carrier
shaft
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KR1020100002153A
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Korean (ko)
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KR20110082259A (en
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조광호
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조광호
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Priority to KR1020100002153A priority Critical patent/KR101147219B1/en
Priority to PCT/KR2011/000170 priority patent/WO2011084030A2/en
Publication of KR20110082259A publication Critical patent/KR20110082259A/en
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Publication of KR101147219B1 publication Critical patent/KR101147219B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
    • B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
    • B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
    • B62M9/121—Rear derailleurs
    • B62M9/122—Rear derailleurs electrically or fluid actuated; Controls thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
    • B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
    • B62M11/14—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears
    • B62M11/16—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears built in, or adjacent to, the ground-wheel hub
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
    • F16D27/10—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings
    • F16D27/108—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with axially movable clutching members
    • F16D27/112—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with axially movable clutching members with flat friction surfaces, e.g. discs
    • 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
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • 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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/003—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion the gear-ratio being changed by inversion of torque direction
    • F16H3/005—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion the gear-ratio being changed by inversion of torque direction for gearings using gears having orbital motion
    • 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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion

Abstract

본 발명은 변속 충격이 없이 변속 가능한 자전거용 변속장치에 관한 것이다.
본 발명은 전륜 또는 후륜의 중앙에 결합되는 허브축과, 전륜 및 후륜의 허브축에 결합된 전,후륜 스프로켓을 상호 연결하는 체인을 포함하는 자전거에 적용되는 것으로, 상기 스프로켓과 연결된 제1캐리어; 상기 제1캐리어의 끝단에 회전가능하도록 결합된 제1유성기어; 상기 제1유성기어와 치합되는 제1선기어가 형성되고, 상기 허브축에 결합된 제1선기어축; 상기 제1유성기어가 치합되는 제1링기어가 내주면에 형성되며, 상기 제1선기어의 외부에 결합되고, 외주면에 디스크가 형성된 링기어커버; 자착에 의해 디스크에 결합 및 분리되면서 속도의 가감을 제어하는 마그네틱 클러치를 포함하여 구성된다.The present invention relates to a transmission for a bicycle that can be shifted without a shift shock.
The present invention is applied to a bicycle including a hub that is coupled to the center of the front wheel or rear wheel, and a chain connecting the front and rear wheel sprockets coupled to the hub shaft of the front and rear wheels, the first carrier connected to the sprocket; A first planetary gear rotatably coupled to an end of the first carrier; A first sun gear shaft having a first sun gear meshed with the first planetary gear and coupled to the hub shaft; A ring gear cover having a first ring gear meshed with the first planetary gear on an inner circumferential surface thereof, coupled to an outside of the first sun gear, and having a disk formed on an outer circumferential surface thereof; It is configured to include a magnetic clutch for controlling the acceleration and decrease of the speed while being coupled to and separated from the disk by the magnetic attachment.

Description

자전거용 변속장치{BICYCLE TRANSMISSION}Bicycle gear shifter {BICYCLE TRANSMISSION}

본 발명은 자전거용 변속장치에 관한 것으로, 더욱 상세하게는 변속 충격이 없이 변속 가능한 자전거용 변속장치에 관한 것이다.
The present invention relates to a transmission for a bicycle, and more particularly, to a transmission for a bicycle that can be shifted without a shift shock.

일반적으로 자전거는 무공해 운송수단으로 최근에 환경오염 방지 정책에 힘입어 다시 주목받고 있는 대체 운송수단이다.In general, bicycles are pollution-free, and they are an alternative vehicle that is attracting attention again recently due to environmental pollution prevention policies.

최근에는 자전거에 대한 기술이 개량되어 보다 적은 힘으로 운행될 수 있고, 또한 용도에 따라 생활용, 스포츠용 등 보다 세분화되어 폭넓은 사용자 계층을 보유하고 있다.In recent years, the technology for bicycles has been improved and can be driven with less power, and has a wider user base, which is further segmented according to the purpose of use, such as for living and sports.

자전거는 대개 전륜과 후륜 및 차체 프레임, 핸들 등으로 구성되며, 브레이크와 변속장치가 더 부가된다.Bicycles usually consist of front and rear wheels, body frames and steering wheels, with additional brakes and transmissions.

변속장치는 저속 및 고속으로 변환시켜 보다 적은힘으로도 언덕이나 내리막길에서 유용하게 사용할 수 있는 장치이다.The gearbox is a device that can be usefully used on hills or downhill roads with less power by converting it to low speed and high speed.

통상 변속장치는 전륜 및 후륜의 허브에 장착된 다단 기어와 이를 위치변동시키는 와이어 및 상기 와이어를 조작하도록 핸들에 부착된 변속레버로 구성된다.Typically, the transmission consists of a multi-stage gear mounted to the hubs of the front and rear wheels, a wire for shifting the position thereof, and a shift lever attached to a handle to manipulate the wire.

따라서 변속레버를 조작하면 와이어가 당겨지면서 체인의 위치를 다단 기어의 어느 위치로 변경시킴에 의해 속도 변환이 가능해진다.Therefore, when the shift lever is operated, the speed can be changed by changing the position of the chain to which position of the multi-stage gear while the wire is pulled.

그러나 종래 기술은 변속시 체인의 위치가 변동될때 변속 충격이 발생되며, 오랜 사용시 와이어의 느슨해짐에 따라 제때 변속이 수행되지 않는 문제점이 발생되었다.
However, in the prior art, a shift shock is generated when the position of the chain is changed during shifting, and a problem occurs that shifting is not performed in a timely manner as the wire is loosened for a long time.

본 발명은 상기한 종래 기술의 문제점을 해소하기 위해 안출된 것으로, 변속충격이 없으며, 종래 와이어 방식에 의한 변속장치와 달리 와이어를 사용하지 않음으로써 와이어의 느슨해짐에 의한 성능 저하를 원천적으로 방지할 수 있으므로 기기의 정확성과 내구성이 향상될 수 있도록 한 자전거용 변속장치를 제공하는데 그 목적이 있다.
The present invention has been made to solve the above-described problems of the prior art, there is no shift shock, unlike the conventional transmission method of the wire method by using a wire to prevent the performance degradation due to loosening of the wire by default It is an object of the present invention to provide a bicycle transmission that can improve the accuracy and durability of the device.

상기한 본 발명의 목적은, 전륜 또는 후륜의 중앙에 결합되는 허브축과, 전륜 및 후륜의 허브축에 결합된 전,후륜 스프로켓을 상호 연결하는 체인을 포함하는 자전거에 적용되는 것으로, 상기 스프로켓과 연결된 제1캐리어; 상기 제1캐리어의 끝단에 회전가능하도록 결합된 제1유성기어; 상기 제1유성기어와 치합되는 제1선기어가 형성되고, 상기 허브축에 결합된 제1선기어축; 상기 제1선기어축의 외주면에 결합된 제2캐리어; 상기 제2캐리어의 끝단에 회전가능하도록 결합된 제2유성기어; 상기 제2유성기어에 치합되는 제2선기어가 형성되고, 상기 허브축에 결합된 제2선기어축; 상기 제1 및 제2유성기어가 치합되는 제1 및 제2링기어가 내주면에 형성되며, 상기 제1 및 제2선기어의 외부에 결합되고, 외주면에 디스크가 형성된 링기어커버; 자착에 의해 디스크에 결합 및 분리되면서 속도의 가감을 제어하는 마그네틱 클러치를 포함하는 자전거용 변속장치에 의해 달성될 수 있다.The object of the present invention is to be applied to a bicycle including a hub that is coupled to the center of the front wheel or rear wheel, and a chain connecting the front and rear sprockets coupled to the hub shaft of the front and rear wheels, the sprocket and A connected first carrier; A first planetary gear rotatably coupled to an end of the first carrier; A first sun gear shaft having a first sun gear meshed with the first planetary gear and coupled to the hub shaft; A second carrier coupled to an outer circumferential surface of the first sun gear shaft; A second planetary gear rotatably coupled to an end of the second carrier; A second sun gear shaft engaged with the second planetary gear, the second sun gear shaft being coupled to the hub shaft; A ring gear cover having first and second ring gears meshed with the first and second planetary gears on an inner circumferential surface thereof, coupled to the outside of the first and second sun gears, and having a disk formed on the outer circumferential surface thereof; It can be achieved by a transmission for a bicycle including a magnetic clutch to control the acceleration and decrease of the speed while being coupled to and detached from the disk by magnetism.

상기 제1캐리어는 스프로켓의 중심부와 연결되는 원통체와, 상기 원통체의 외주면에 다수로 분기된 브라켓으로 구성되며, 상기 브라켓의 끝단에 제1유성기어가 힌지결합된 것을 특징으로 한다.The first carrier is composed of a cylindrical body connected to the center of the sprocket, and a plurality of brackets branched on the outer peripheral surface of the cylindrical body, characterized in that the first planetary gear is hinged to the end of the bracket.

상기 제1선기어축은 원통형상이며, 일단에 원판상의 제1선기어가 형성된 것을 특징으로 한다.The first sun gear shaft has a cylindrical shape and is characterized in that a first sun gear is formed in a disc shape.

상기 제2캐리어는 원판형상이며, 제1선기어축의 외주면에 결합되고, 외주연에 다수의 제2링기어가 힌지결합된 것을 특징으로 한다.The second carrier has a disk shape, is coupled to the outer circumferential surface of the first sun gear shaft, and a plurality of second ring gears are hingedly coupled to the outer circumference.

상기 링기어커버는 단면이 "┌┐" 형상으로써 그 내주면에 상기 제1 및 제2링기어가 형성된 것을 특징으로 한다.The ring gear cover is characterized in that the first and second ring gears are formed on the inner circumferential surface of the ring gear cover having a "┌┐" shape.

상기 제1 및 제2링기어와 상기 제1 및 제2선기어의 기어비는 80:20인 것을 특징으로 한다.The gear ratio of the first and second ring gears and the first and second sun gears is 80:20.

상기 마그네틱 클러치가 디스크에 자착되면 링기어커버가 고정됨으로써 고속모드로 전환되는 것을 특징으로 한다.When the magnetic clutch is fixed to the disk, the ring gear cover is fixed to switch to a high speed mode.

상기 마그네틱 클러치가 디스크와 이격되면 링기어커버가 회전됨으로써 회전력이 분산되어 저속 모드로 전환되는 것을 특징으로 한다.
When the magnetic clutch is spaced apart from the disk, the ring gear cover is rotated so that the rotational force is distributed to switch to the low speed mode.

본 발명에 따르면 변속 시점이 정확하게 유지될 수 있고, 변속시 충격 발생이 없어 사용이 편리하면서 정숙성이 유지될 수 있으며, 아울러 기기의 신뢰성이 향상될 수 있는 효과가 있다.
According to the present invention, the shift point of time can be accurately maintained, there is no impact generated during shifting, it is convenient to use and quietness can be maintained, and the reliability of the device can be improved.

도 1 및 도 2는 본 발명에 따른 자전거용 변속장치를 나타낸 도면으로써 도 1은 저속 모드일때이고, 도 2는 고속 모드일때를 나타낸다.1 and 2 are views illustrating a transmission for a bicycle according to the present invention. FIG. 1 shows a low speed mode, and FIG. 2 shows a high speed mode.

이하 본 발명의 바람직한 실시예를 첨부된 도면을 토대로 상세하게 설명하면 다음과 같다.
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1 및 도 2는 본 발명에 따른 자전거용 변속장치를 나타낸 도면으로써 도 1은 저속 모드일때이고, 도 2는 고속 모드일때를 나타낸다.
1 and 2 are views illustrating a transmission for a bicycle according to the present invention. FIG. 1 shows a low speed mode, and FIG. 2 shows a high speed mode.

도 1 및 도 2에 나타낸 바와 같이, 본 발명은 전륜 또는 후륜의 중앙에 결합되는 허브축(100)과, 전륜 및 후륜의 허브축(100)에 결합된 전,후륜 스프로켓(200)을 상호 연결하는 체인(미도시)을 포함하는 자전거에 적용된다.1 and 2, the present invention interconnects the hub shaft 100 coupled to the center of the front wheel or rear wheel, and the front and rear wheel sprocket 200 coupled to the hub shaft 100 of the front and rear wheels. It is applied to a bicycle including a chain (not shown).

미설명부호 300은 허브축(100)의 중심에 결합된 중심축을 나타낸다.
Reference numeral 300 denotes a central axis coupled to the center of the hub axis 100.

이하 본 발명은 보다 구체적으로 살펴보면,Looking at the present invention in more detail,

본 발명에 따른 자전거용 변속장치(A)는 상기 전,후륜 스프로켓(200) 중 어느 하나에 적용되거나 또는 양자 모두에 적용될 수 있다.The bicycle transmission A according to the present invention may be applied to any one of the front and rear wheel sprockets 200 or both.

즉, 상기 스프로켓(200)과 연결된 제1캐리어(21);That is, the first carrier 21 is connected to the sprocket 200;

상기 제1캐리어(21)의 끝단에 회전가능하도록 결합된 제1유성기어(31);A first planetary gear 31 rotatably coupled to an end of the first carrier 21;

상기 제1유성기어(31)와 치합되는 제1선기어(41)가 형성되고, 상기 허브축(100)에 결합된 제1선기어축(410);A first sun gear shaft 410 meshing with the first planetary gear 31 and coupled to the hub shaft 100;

상기 제1유성기어(31)가 치합되는 제1링기어(51)가 내주면에 형성되며, 상기 제1선기어(41)의 외부에 결합되고, 외주면에 디스크(53)가 형성된 링기어커버(5);A ring gear cover 5 in which a first ring gear 51 into which the first planetary gear 31 is engaged is formed on an inner circumferential surface, is coupled to the outside of the first sun gear 41, and a disk 53 is formed on an outer circumferential surface thereof. );

자착에 의해 디스크(53)에 결합 및 분리되면서 속도의 가감을 제어하는 마그네틱 클러치(6);Magnetic clutch (6) for controlling the acceleration and decrease of the speed while being coupled to and separated from the disk 53 by magnetism;

를 포함하여 구성된다.
.

상기 제1캐리어(21)는 스프로켓(200)의 중심부와 연결되는 원통체와, 상기 원통체의 외주면에 다수로 분기된 브라켓으로 구성되며, 상기 브라켓의 끝단에 제1유성기어(31)가 힌지결합된다.The first carrier 21 is composed of a cylindrical body connected to the central portion of the sprocket 200, a bracket branched to the outer peripheral surface of the cylindrical body a plurality, the first planetary gear 31 is hinged at the end of the bracket Combined.

상기 제1유성기어(31)는 스퍼기어이다.
The first planetary gear 31 is a spur gear.

상기 제1선기어축(410)은 원통형상이며, 일단에 원판상의 제1선기어(41)가 형성된 것이며, 상기 제1선기어(41)도 제1유성기어(31)와 치합되는 스퍼기어이다.
The first sun gear shaft 410 has a cylindrical shape and has a disc shaped first sun gear 41 at one end thereof. The first sun gear 41 is also a spur gear meshed with the first planetary gear 31.

또한 본 발명은 Also,

상기 제1선기어축(410)의 외주면에 결합된 제2캐리어(22);A second carrier 22 coupled to an outer circumferential surface of the first sun gear shaft 410;

상기 제2캐리어(22)의 끝단에 회전가능하도록 결합된 제2유성기어(32);A second planetary gear 32 rotatably coupled to an end of the second carrier 22;

상기 제2유성기어(32)에 치합되는 제2선기어(42)가 형성되고, 상기 허브축(100)에 결합된 제2선기어축(420);을 더 포함한다.And a second sun gear shaft 420 meshed with the second planetary gear 32 and coupled to the hub shaft 100.

또한 상기 링기어커버(5)의 내주면에 상기 제2유성기어(32)가 치합되는 제2링기어(52)가 더 형성된다.
In addition, a second ring gear 52 is further formed on the inner circumferential surface of the ring gear cover 5 to engage the second planetary gear 32.

상기 제2캐리어(22)는 원판형상이며, 제1선기어축(410)의 외주면에 결합되고, 외주연에 다수의 제2링기어(52)가 힌지결합된다.
The second carrier 22 has a disk shape and is coupled to the outer circumferential surface of the first sun gear shaft 410, and a plurality of second ring gears 52 are hinged to the outer circumference.

상기 링기어커버(5)는 단면이 "┌┐" 형상인 원통형상으로써 그 내주면에 상기 제1 및 제2링기어(51,52)가 형성된다.The ring gear cover 5 has a cylindrical shape having a cross section of “┌┐”, and the first and second ring gears 51 and 52 are formed on the inner circumferential surface thereof.

상기 제1 및 제2링기어(51,52)와 상기 제1 및 제2선기어(41,42)의 기어비는 80:20이 바람직하다.
The gear ratio of the first and second ring gears 51 and 52 and the first and second sun gears 41 and 42 is preferably 80:20.

상기 마그네틱 클러치(6)는 디스크(53)의 양면에 대응하여 배치된 복수의 편체를 갖는 것으로, 협지방식에 의해 디스크(53)의 양면에 협지 또는 이격된다.The magnetic clutch 6 has a plurality of pieces of knitting arranged to correspond to both surfaces of the disk 53, and is sandwiched or spaced on both surfaces of the disk 53 by a clamping method.

마그네틱 클러치(6)가 디스크(53)와 이격되면 링기어커버(5)가 회전됨으로써 회전력이 분산되어 저속 모드로 전환된다.When the magnetic clutch 6 is spaced apart from the disk 53, the ring gear cover 5 is rotated so that the rotational force is dispersed to switch to the low speed mode.

도 1에 나타낸 바와 같이, 핸들(미도시)에 구비된 제어장치를 조작하여 저속 모드로 변환시키면 마그네틱 클러치(6)와 디스크(53)가 상호 이격된 상태된다.As shown in FIG. 1, when the control device provided in the handle (not shown) is operated to switch to the low speed mode, the magnetic clutch 6 and the disk 53 are spaced apart from each other.

이후 페달링을 하면 체인()의 구동에 의해 스프로켓(200)이 회전되며, 제1캐리어(21)를 경유하여 제1유성기어(31)가 회전되고, 이에 치합된 제1선기어(41) 및 제1링기어(51)가 회전된다.After the pedaling, the sprocket 200 is rotated by the driving of the chain, and the first planetary gear 31 is rotated via the first carrier 21, and the first sun gear 41 and the first gear gear 41 are rotated. 1 ring gear 51 is rotated.

따라서 링기어커버(5)가 회전되고, 아울러 제2선기어(42) 및 제2유성기어(32)가 회전되며, 이에 치합된 제2링기어(52)가 회전됨으로써 최초에 스프로켓(200)의 회전력은 감속된 상태로 허브축(100)으로 전달된다.Accordingly, the ring gear cover 5 is rotated, and the second sun gear 42 and the second planetary gear 32 are rotated, and the second ring gear 52 engaged with the ring gear 52 is rotated to first rotate the sprocket 200. The rotational force is transmitted to the hub shaft 100 in a decelerated state.

특히 마그네틱 클러치(6)와 디스크(53)와의 이격 거리를 적정하게 미세 조절함으로써 디스크(53)에 작용되는 부하를 조절할 수 있고, 이에 의해 디스크(53) 및 그에 연결된 링기어커버(5)의 회전속도를 강제적으로 감속시킬 수 있게 된다.In particular, by appropriately fine-adjusting the distance between the magnetic clutch 6 and the disk 53, the load applied to the disk 53 can be adjusted, thereby rotating the disk 53 and the ring gear cover 5 connected thereto. The speed can be forcibly reduced.

따라서 링기어커버(5)의 회전속도가 고속일때에 비해 1/2로 감속된 상태로 유지하면, 제1 및 제2선기어(41,42)로 출력되는 속도가 1.5배 증속됨으로써 속도는 고속에 비해 중간정도인 중속으로 출력될 수 있다.
Therefore, if the rotational speed of the ring gear cover 5 is kept at a reduced speed by 1/2 compared to that at high speed, the speed output to the first and second sun gears 41 and 42 is increased by 1.5 times, thereby increasing the speed to a high speed. It can be output at medium speed compared to medium.

이와 반대로 도 2에 나타낸바와 같이, 제어장치를 조작하여 고속 모드로 변환시키면 마그네틱 클러치(6)가 디스크(53)에 자착되면 링기어커버(5)가 고정됨으로써 고속모드로 전환된다.On the contrary, as shown in FIG. 2, when the control device is operated to switch to the high speed mode, when the magnetic clutch 6 is fixed to the disk 53, the ring gear cover 5 is fixed to switch to the high speed mode.

따라서 링기어커버(5)의 회전이 정지된다면 최초 입력된 회전력은 중간에 손실됨이 없이 전량이 제1 및 제2선기어(41,42)로 전달되므로 기어비에 의해 1개의 선기어가 약 4배로 증속될 수 있다.Therefore, if the rotation of the ring gear cover 5 is stopped, the first input torque is transmitted to the first and second sun gears 41 and 42 without losing the intermediate torque, so that one sun gear is increased by about four times by the gear ratio. Can be.

즉 제1링기어(51)가 정지되면 제1선기어(41)는 4배의 회전속도가 발휘된다.That is, when the first ring gear 51 is stopped, the first sun gear 41 exhibits four times the rotation speed.

그러므로 링기어커버(5)가 정지된 상태라면 제1선기어(41) 및 제2선기어(42)에서 각기 4배속으로 가속되므로, 총합은 16배속으로 가속될 수 있다.
Therefore, if the ring gear cover 5 is in a stopped state, since the first sun gear 41 and the second sun gear 42 are each accelerated at four times speed, the sum can be accelerated to 16 times speed.

만약 선기어를 갯수를 더욱 증가시킨다면 최종 출력되는 속도는 더욱 증가될 수 있을 것임은 당연하다.
If the number of sun gear is increased further, it is natural that the final output speed can be increased further.

비록 본 발명이 상기 언급된 바람직한 실시예와 관련하여 설명되어졌지만, 발명의 요지와 범위로부터 벗어남이 없이 다양한 수정 및 변형이 가능한 것은 당업자라면 용이하게 인식할 수 있을 것이며, 이러한 변경 및 수정은 모두 첨부된 청구의 범위에 속함은 자명하다.Although the present invention has been described in connection with the above-mentioned preferred embodiments, it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the invention, It is obvious that the claims fall within the scope of the claims.

5 : 링기어커버 6 : 마그네틱 클러치
21 : 제1캐리어 22 : 제2캐리어
31 : 제1유성기어 32 : 제2유성기어
41 : 제1선기어 42 : 제2선기어
51 : 제1링기어 52 : 제2링기어
53 : 디스크 5: ring gear cover 6: magnetic clutch
21: first carrier 22: second carrier
31: first planetary gear 32: second planetary gear
41: first sun gear 42: second sun gear
51: first ring gear 52: second ring gear
53: disk

Claims (9)

전륜 또는 후륜의 중앙에 결합되는 허브축과, 전륜 및 후륜의 허브축에 결합된 전,후륜 스프로켓을 상호 연결하는 체인을 포함하는 자전거에 적용되는 것으로,
상기 스프로켓과 연결된 제1캐리어;
상기 제1캐리어의 끝단에 회전가능하도록 결합된 제1유성기어;
상기 제1유성기어와 치합되는 제1선기어가 형성되고, 상기 허브축에 결합된 제1선기어축;
상기 제1선기어의 외부에 결합되고, 외주면에 디스크가 형성된 링기어커버;
자착에 의해 디스크에 결합 및 분리되면서 속도의 가감을 제어하는 마그네틱 클러치;
상기 제1선기어축의 외주면에 결합된 제2캐리어;
상기 제2캐리어의 끝단에 회전가능하도록 결합된 제2유성기어;
상기 제2유성기어에 치합되는 제2선기어가 형성되고, 상기 허브축에 결합된 제2선기어축;을 포함하며,
상기 제1캐리어는 스프로켓의 중심부와 연결되는 원통체와, 상기 원통체의 외주면에 다수로 분기된 브라켓으로 구성되며, 상기 브라켓의 끝단에 제1유성기어가 힌지결합된 것이며,
상기 제1선기어축은 원통형상이며, 일단에 원판상의 제1선기어가 형성된 것이고,
상기 제2캐리어는 원판형상이며, 제1선기어축의 외주면에 결합되고, 외주연에 다수의 제2링기어가 힌지결합된 것이며,
상기 링기어커버는 단면이 "┌┐" 형상이고, 상기 제1유성기어가 치합되는 제1링기어와 상기 제2유성기어가 치합되는 제2링기어가 내주면에 형성된 것을 특징으로 하는 자전거용 변속장치.
Applied to a bicycle including a hub that is coupled to the center of the front wheel or rear wheel, and a chain interconnecting the front and rear sprockets coupled to the hub shaft of the front and rear wheels,
A first carrier connected to the sprocket;
A first planetary gear rotatably coupled to an end of the first carrier;
A first sun gear shaft having a first sun gear meshed with the first planetary gear and coupled to the hub shaft;
A ring gear cover coupled to the outside of the first sun gear and having a disk formed on an outer circumferential surface thereof;
Magnetic clutch for controlling the acceleration and decrease of the speed while being coupled to and separated from the disk by the magnetic attachment;
A second carrier coupled to an outer circumferential surface of the first sun gear shaft;
A second planetary gear rotatably coupled to an end of the second carrier;
And a second sun gear shaft meshed with the second planetary gear, the second sun gear shaft coupled to the hub shaft.
The first carrier is composed of a cylindrical body connected to the central portion of the sprocket, and a plurality of brackets branched on the outer circumferential surface of the cylindrical body, the first planetary gear is hinged to the end of the bracket,
The first sun gear shaft has a cylindrical shape and is formed with a disc-shaped first sun gear at one end thereof.
The second carrier has a disc shape, is coupled to the outer circumferential surface of the first sun gear shaft, and a plurality of second ring gears are hinged to the outer circumference thereof.
The ring gear cover has a cross section having a “┌┐” shape, and the first ring gear to which the first planetary gear is meshed and the second ring gear to which the second planetary gear are meshed are formed on an inner circumferential surface thereof. Device.
삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 삭제delete 제 1항에 있어서,
상기 마그네틱 클러치가 디스크에 자착되면 링기어커버가 고정됨으로써 고속모드로 전환되는 것을 특징으로 하는 자전거용 변속장치.The method of claim 1,
And when the magnetic clutch is fixed to the disk, the gearbox is fixed to the high speed mode by fixing a ring gear cover. 제 1항에 있어서,
상기 마그네틱 클러치가 디스크와 이격되면 링기어커버가 회전됨으로써 회전력이 분산되어 저속 모드로 전환되는 것을 특징으로 하는 자전거용 변속장치.


The method of claim 1,
When the magnetic clutch is spaced apart from the disk, the rotation gear is rotated by the ring gear cover is rotated to shift to the low speed mode, characterized in that the shift mode.


KR1020100002153A 2010-01-11 2010-01-11 Bicycle transmission KR101147219B1 (en)

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KR1020100002153A KR101147219B1 (en) 2010-01-11 2010-01-11 Bicycle transmission
PCT/KR2011/000170 WO2011084030A2 (en) 2010-01-11 2011-01-11 Transmission system

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02164685A (en) * 1988-12-20 1990-06-25 Oriental Kanzai Kk Automatic speed change gear for bicycle
KR19990085031A (en) * 1998-05-13 1999-12-06 이상수 Bicycle with motor and reducer integrated in hub
JP2001234990A (en) 2000-02-24 2001-08-31 Hiroyuki Yokozawa Transmission
KR100422544B1 (en) 2001-07-21 2004-03-11 현대자동차주식회사 Clutch of vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02164685A (en) * 1988-12-20 1990-06-25 Oriental Kanzai Kk Automatic speed change gear for bicycle
KR19990085031A (en) * 1998-05-13 1999-12-06 이상수 Bicycle with motor and reducer integrated in hub
JP2001234990A (en) 2000-02-24 2001-08-31 Hiroyuki Yokozawa Transmission
KR100422544B1 (en) 2001-07-21 2004-03-11 현대자동차주식회사 Clutch of vehicle

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