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WO2015190683A1 - Transmission hub directly driven by crank and bicycle including same - Google Patents

Transmission hub directly driven by crank and bicycle including same Download PDF

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Publication number
WO2015190683A1
WO2015190683A1 PCT/KR2015/003774 KR2015003774W WO2015190683A1 WO 2015190683 A1 WO2015190683 A1 WO 2015190683A1 KR 2015003774 W KR2015003774 W KR 2015003774W WO 2015190683 A1 WO2015190683 A1 WO 2015190683A1
Authority
WO
WIPO (PCT)
Prior art keywords
hub
shaft
gear
crank arm
shift
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2015/003774
Other languages
French (fr)
Korean (ko)
Inventor
김복성
김도환
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BYGEN Co Ltd
Original Assignee
BYGEN Co Ltd
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
Priority claimed from KR1020140071177A external-priority patent/KR101471460B1/en
Priority claimed from KR1020140109983A external-priority patent/KR101525032B1/en
Application filed by BYGEN Co Ltd filed Critical BYGEN Co Ltd
Publication of WO2015190683A1 publication Critical patent/WO2015190683A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • B62M11/18—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears with a plurality of planetary gear units
    • 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
    • B62M1/00—Rider propulsion of wheeled vehicles
    • B62M1/36—Rider propulsion of wheeled vehicles with rotary cranks, e.g. with pedal cranks
    • B62M1/38—Rider propulsion of wheeled vehicles with rotary cranks, e.g. with pedal cranks for directly driving the wheel axle
    • 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
    • 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
    • B62M3/00—Construction of cranks operated by hand or foot

Definitions

  • the present invention relates to a shift hub that is directly driven by a crank and a bicycle having the same, and more particularly, a shift hub that drives a crank by directly connecting to a hub shaft without a transmission device such as a chain that transmits the rotational force of the crank to the hub. And it relates to a bicycle having the same.
  • Bicycles generally have a power train using a chain.
  • a conventional power transmission device 1 includes a pedal 12 coupled to both cranks 11, a drive sprocket 13 mounted on a crankshaft, and a hub that is a central axis of a rear wheel. It comprises a shaft 21 and a chain 30 for transmitting power, and a driven sprocket 22.
  • the conventional power transmission device rotates the pedal 12 to rotate the drive sprocket 13 and the driven sprocket 22, and eventually rotates the hub shell 23 to drive.
  • an object of the present invention is to drive by connecting the crank directly to the hub shaft, without a conventional transmission device for transmitting the rotational force of the crank to the hub, such as chain, drive sprocket, driven sprocket To provide a shift hub and a bicycle having the same.
  • the shift hub according to the present invention is a hub shell is connected to the spokes;
  • a hub shaft provided at the center of the hub shell and having a crank connected thereto and receiving rotational force of the crank;
  • a built-in gear provided between the hub shaft and the hub shell to transfer the rotational force input through the hub shaft to the hub shell; It includes; and a fixed axle provided on both sides of the hub shell to be fixed to the frame.
  • the internal gear is preferably provided with a sun gear shaft installed on the outside of the hub shaft.
  • the internal gear is further provided with a satellite gear system, the satellite gear system, at least one carrier having a satellite gear; At least one sun gear and a ring gear meshing with the satellite gear; And at least one clutch means.
  • the satellite gear system is further provided with a shift means, the shift means comprising: a shift shaft positioned between the hub shaft and the sun gear shaft; A control body which is operated up and down by rotation of the shift shaft to fix or release the sun gear; And a wire connected to the transmission shaft to rotate the transmission shaft by a predetermined angle.
  • a stepped groove is formed in the shift shaft so that the control body can move up and down, and a hole is formed in the sun gear shaft so that the control body can stand.
  • a locking step is formed on the inner circumferential surface of the sun gear so that the control body protruding through the hole of the sun gear shaft can be caught or fixed to the inner circumferential surface of the sun gear.
  • Bicycle is a shift hub including a hub shaft located in the center of the rear wheel; And a joint crank directly connected to the hub shaft, wherein the joint crank includes: a pedal crank arm to which a pedal is attached; A rotary crank arm having one end connected to the pedal crank arm and the other end connected to the hub shaft to rotate the hub shaft; And at least one direction holding crank arm, one end of which is connected to the pedal crank arm and the other end of which is rotatably connected to the frame to maintain a constant direction of the pedal crank arm.
  • direction holding crank arm is preferably the same length as the rotary crank arm.
  • the rotating crank arm and the direction holding crank arm rotate while maintaining parallelism.
  • the shift hub the hub shell is connected to the spokes;
  • a built-in gear provided between the hub shaft and the hub shell to be operated by the hub shaft and to transmit a rotational force input through the hub shaft to the hub shell;
  • a fixed axle provided at both sides of the hub shell to be fixed to the frame.
  • 1 and 2 show a conventional bicycle.
  • Figure 6 shows a bicycle equipped with a shift hub and a joint crank according to the present invention.
  • Figure 7 illustrates in detail the joint crank connected to the shift hub according to the present invention.
  • shift hub directly driven by the crank according to the present invention.
  • the shift hub 200 includes a hub shaft 210, a hub shell 220, an internal gear, and fixed axles 251 and 252.
  • the hub shaft 210 according to the present invention is the same as a conventional hub shaft in that it is located at the center of the rear wheel (110 in FIG. 6), but the rotation crank arm 330 is directly connected and rotates, that is, the rotational force is It is different from the conventional hub axis in that it is input.
  • the hub shell 220 is a component to which the spokes (120 of Figure 6) is connected.
  • the fixing axles 251 and 252 are provided on both sides of the hub shell 220 is a component that can be fixed to the frame (F). That is, in the present embodiment, instead of being configured to rotate the hub shaft 210, the fixed axles 251 and 252 fixed to the frame F are provided.
  • the built-in gear is provided between the hub shaft 210 and the hub shell 220 is operated by the hub shaft 210 and configured to transfer the rotational force input through the hub shaft 210 to the hub shell 220. Element.
  • the internal gear includes a sun gear shaft 231 and a satellite gear system.
  • the sun gear shaft 231 is hollow so that the hub shaft 210 is installed therethrough.
  • the satellite gear system includes three carriers 232A, 232B, and 232C having satellite gears 233A, 233B, and 233C, and three external gears that are externally engaged with the satellite gears 233A, 233B, and 233C.
  • Sun gears 234A, 234B and 234C, three ring gears 235A, 235B and 235C meshing externally with the satellite gears 233A, 233B and 233C, and 3 which transmits rotational force in contact with the inner circumferential surface of the hub shell.
  • Two clutch bearings (236A, 236B and 236C).
  • sun gears 234A, 234B, and 234C are provided outside the sun gear shaft 231, respectively.
  • first carrier 232A is provided with a first satellite gear 233A meshing with the first sun gear 234A.
  • Three first satellite gears 233A are equidistant from the first carrier 232A. Axially coupled.
  • the second carrier 232B is provided with a second satellite gear 233B that engages with the second sun gear 234B, and the second carrier 232B has a first satellite gear 233A that engages with the first satellite gear 233A.
  • a ring gear 235A is integrally formed and a first clutch bearing 236A is provided on an outer circumferential surface of the first ring gear 235A.
  • the third carrier 232C is provided with a third satellite gear 233C that meshes with the third sun gear 234C, and the third carrier 232C has a second satellite gear 233B that is engaged with the second satellite gear 233B.
  • the ring gear 235B is integrally formed, and a second clutch bearing 236B is provided on an outer circumferential surface of the second ring gear 235B.
  • three of the second satellite gear 233B and the third satellite gear 233C are axially coupled to the second carrier 232B and the third carrier 232C at equal intervals, respectively.
  • the present embodiment includes a third ring gear 235C engaged with the third satellite gear 233C, and a third clutch bearing 236C provided on the outer circumferential surface of the third ring gear 235C.
  • the satellite gear system according to the present invention is further provided with a transmission means 240.
  • the shift means 240 includes a shift shaft 241, a control body 242, and a wire 243.
  • the shift shaft 241 is located between the hub shaft 210 and the sun gear shaft 231, the control body 242 is operated up and down by the rotation of the shift shaft 241 is the sun gear 234B, 234C) is a component that locks or releases.
  • control body may be modified in various forms.
  • it can comprise with a metal, a polyhedron, etc.
  • it can also comprise with a normal pole.
  • a stepped groove 241a is formed in the shift shaft 241 to allow the control body 242 to move up and down, and a hole for the control body 242 to wander in the sun gear shaft 231. 231a) is formed.
  • a locking jaw (234P in FIG. 5) is formed on the inner circumferential surfaces of the sun gears 234B and 234C. Accordingly, the sun gears 234B and 234C are caught by the catching jaw 234P formed on the inner circumferential surface of the sun gear by the control body 242 protruding through the hole 231a of the sun gear shaft 231. 231) is fixed or released.
  • the wire 243 is a component connected to the shift shaft 241 to rotate the shift shaft 241 by a predetermined angle by a user operating a lever (not shown).
  • the wire can be replaced by any type of pullable means, such as a thin chain or belt.
  • the clutch bearings 236A to 236C are illustrated as clutch means for transmitting rotational force to the inner circumferential surface of the hub shell 220.
  • the hub shell 220 may be rotated by a conventional pawl.
  • FIG. 3 describes the operating state of the shift hub 200 according to the present invention.
  • FIG 3 is a state in which only the second sun gear 234B is fixed by controlling the control body 242A by rotating the shift shaft 241 by a predetermined angle by operating the lever (not shown) and the wire 2430.
  • the sun gear 234B is fixed to the sun gear shaft 231 by the protruding control member 242A and is not rotated.
  • the satellite gear system of the built-in gear to increase or decrease the speed in the shift hub of the present invention can be a variety of forms, other forms of internal gear other than the satellite gear system is possible.
  • the bicycle 100 includes a joint crank including the pedal crank arm 320, the rotating crank arm 330, and the direction holding crank arms 340A and 340B ('300' of FIG. 7). Reference), and the shift hub (see '200' of FIG. 3).
  • the joint crank 300 includes a pedal crank arm 320, a rotating crank arm 330, and direction holding crank arms 340, 340A, and 340B.
  • the pair of joint cranks 300 are coupled to both sides of the shift hub 200.
  • the pedal crank arm 320 is a component to which the pedal 310 is attached to which pressure is transmitted.
  • the rotary crank arm 330 is one end of the pedal crank arm 320 is connected to the other end is directly connected to the hub shaft ('210' of Figure 3) is a component for rotating the hub shaft (210).
  • the direction holding crank arms 340A and 340B are components that maintain a constant direction of the pedal crank arm 320. Looking at the configuration, one end is connected to the pedal crank arm 320 and the other end is a frame (Fig. 6). 'F') is rotatably connected.
  • the direction holding crank arms 340A and 340B are axially coupled to the frame F and the pedal crank arm 320, respectively, and connected in a rotatable state, and bearings are interposed for smooth rotation.
  • the direction holding crank arms 340A and 340B have the same length as the rotation crank arm 330, and the rotation crank arm 330 and the direction holding crank arms 340A and 340B are installed in parallel. Therefore, the rotary crank arm 330 and the direction holding crank arms 340A and 340B are rotated 360 ° while always maintaining parallelism.
  • crank arm 330 and the direction holding crank arms 340A and 340B are properly refracted when viewed from above so that they can rotate without mutual interference.
  • the direction holding crank arms 340A and 340B are composed of two, but alternatively, it may be composed of one or three or more.
  • crank arm 320 rotates while the direction of the crank arm 320 is kept constant.
  • the hub shaft 210 is rotated by the rotation of the rotary crank arm 330 to drive the rear wheel 110.
  • the pedal crank arm 320 may maintain a constant direction by the action of the rotary crank arm 330 and the two direction holding crank arms 340A and 340B.
  • the rotary crank arm 330 rotates 360 ° about the hub shaft 210, but the pedal crank arm 320 is operated to maintain a constant direction (horizontal direction in the drawing) on the ground. . In this operation, the pedal 310 can rotate without touching the ground.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)

Abstract

The present invention relates to a transmission hub directly driven by a crank and a bicycle including the same and, more specifically, to a transmission hub that is driven by a crank directly connected to a hub shaft without a transmission apparatus, such as a chain, which transmits the rotating force of the crank to the hub, and a bicycle including the same. The transmission hub directly driven by the crank, according to the present invention, comprises: a hub shell to which spokes are connected; a hub shaft which is provided in the center of the hub shell and to which a crank is connected and the rotating force of the crank is input; an integral gear that is provided between the hub shaft and the hub shell and transmits the rotating force, which is input through the hub shaft, to the hub shell; and fixed axles provided on opposite sides of the hub shell and fixed to a frame.

Description

크랭크로 직접 구동되는 변속허브 및 이를 구비한 자전거Transmission hubs directly driven by cranks and bicycles with same

본 발명은 크랭크로 직접 구동되는 변속허브 및 이를 구비한 자전거에 관한 것으로서, 보다 상세하게는 크랭크의 회전력을 허브에 전달하는 체인과 같은 전달장치 없이, 크랭크를 허브축에 직접 연결하여 구동하는 변속허브 및 이를 구비한 자전거에 관한 것이다. The present invention relates to a shift hub that is directly driven by a crank and a bicycle having the same, and more particularly, a shift hub that drives a crank by directly connecting to a hub shaft without a transmission device such as a chain that transmits the rotational force of the crank to the hub. And it relates to a bicycle having the same.

일반적으로 자전거는 체인을 이용한 동력전달장치를 구비한다. 도 1 및 도 2를 참조하면, 종래의 동력전달장치(1)는 크랭크(11) 양쪽에 결합되어 있는 페달(12)과 크랭크축에 장착되는 구동스프라켓(13)과, 후륜의 중심축인 허브축(21)과 동력을 전달하는 체인(30)과, 종동스프라켓(22)을 포함한다. Bicycles generally have a power train using a chain. 1 and 2, a conventional power transmission device 1 includes a pedal 12 coupled to both cranks 11, a drive sprocket 13 mounted on a crankshaft, and a hub that is a central axis of a rear wheel. It comprises a shaft 21 and a chain 30 for transmitting power, and a driven sprocket 22.

종래의 동력전달장치(1)는 사용자가 양 발의 힘으로 페달(12)을 회전시키면 구동스프라켓(13)이 회전하게 되고, 또한 체인(30)에 의해 종동스프라켓(22)이 회전되게 된다. In the conventional power transmission device 1, when the user rotates the pedal 12 with the force of both feet, the driving sprocket 13 rotates, and the driven sprocket 22 is rotated by the chain 30.

이와 같이 종동스프라켓(22)이 회전하게 되면, 클러치수단에 의해 바퀴살이 연결된 허브쉘(23)이 회전하면서 후륜이 회전하게 되는 것이다. When the driven sprocket 22 rotates as described above, the rear wheel rotates while the hub shell 23 connected to the wheels by the clutch means rotates.

즉, 종래의 동력전달장치는 페달(12)을 회전시켜 구동스프라켓(13)과 종동스프라켓(22)을 회전시키고, 종국적으로 허브쉘(23)을 회전시켜 구동하게 된다. That is, the conventional power transmission device rotates the pedal 12 to rotate the drive sprocket 13 and the driven sprocket 22, and eventually rotates the hub shell 23 to drive.

따라서, 종래에는 체인(30)이 끊어지거나 늘어나는 등의 고장이 잦고, 특히, 동력전달시 체인장력에 의한 힘손실이 크게 발생된다는 문제점이 있다. Therefore, in the related art, there is a problem that the chain 30 is frequently broken or stretched, and in particular, a large force loss due to the chain tension occurs during power transmission.

또한, 체인(30), 구동스프라켓(13), 종동스프라켓(22) 등 크랭크(11)의 회전력을 허브에 전달하는 구조가 매우 복잡하다. In addition, the structure for transmitting the rotational force of the crank 11, such as the chain 30, the drive sprocket 13, the driven sprocket 22 to the hub is very complicated.

본 발명은 상술한 문제점을 해결하기 위하여 안출된 것으로서, 본 발명의 목적은 체인, 구동스프라켓, 종동스프라켓 등 크랭크의 회전력을 허브에 전달하는 기존의 전달장치 없이, 크랭크를 허브축에 직접 연결하여 구동하는 변속허브 및 이를 구비한 자전거를 제공함에 있다. The present invention has been made to solve the above problems, an object of the present invention is to drive by connecting the crank directly to the hub shaft, without a conventional transmission device for transmitting the rotational force of the crank to the hub, such as chain, drive sprocket, driven sprocket To provide a shift hub and a bicycle having the same.

위와 같은 기술적 과제를 해결하기 위하여 본 발명에 의한 변속허브는 바퀴살이 연결되는 허브쉘; 상기 허브쉘의 중심에 구비되고, 크랭크가 연결되며, 상기 크랭크의 회전력이 입력되는 허브축; 상기 허브축과 허브쉘 사이에 구비되며, 상기 허브축을 통해 입력된 회전력을 상기 허브쉘에 전달하는 내장기어; 및 프레임에 고정할 수 있도록 상기 허브쉘의 양측에 구비되는 고정엑슬;을 포함한다. In order to solve the above technical problem, the shift hub according to the present invention is a hub shell is connected to the spokes; A hub shaft provided at the center of the hub shell and having a crank connected thereto and receiving rotational force of the crank; A built-in gear provided between the hub shaft and the hub shell to transfer the rotational force input through the hub shaft to the hub shell; It includes; and a fixed axle provided on both sides of the hub shell to be fixed to the frame.

또한 상기 내장기어는 상기 허브축의 외측에 설치되는 태양기어축이 구비되는 것이 바람직하다. In addition, the internal gear is preferably provided with a sun gear shaft installed on the outside of the hub shaft.

또한 상기 내장기어는 위성기어시스템이 더 구비되며, 상기 위성기어시스템은, 위성기어를 구비한 1개 이상의 캐리어; 상기 위성기어와 맞물리는 1개 이상의 태양기어와 링기어; 및 1개 이상의 클러치수단;을 포함하는 것이 바람직하다. In addition, the internal gear is further provided with a satellite gear system, the satellite gear system, at least one carrier having a satellite gear; At least one sun gear and a ring gear meshing with the satellite gear; And at least one clutch means.

또한 상기 위성기어시스템에는 변속수단이 더 구비되며, 상기 변속수단은, 상기 허브축과 태양기어축 사이에 위치하는 변속축; 상기 변속축의 회전에 의해 상하로 작동되어 상기 태양기어를 고정 또는 해제시키는 제어체; 및 상기 변속축과 연결되어 상기 변속축을 소정 각도 회전시키는 와이어;를 포함하는 것이 바람직하다. In addition, the satellite gear system is further provided with a shift means, the shift means comprising: a shift shaft positioned between the hub shaft and the sun gear shaft; A control body which is operated up and down by rotation of the shift shaft to fix or release the sun gear; And a wire connected to the transmission shaft to rotate the transmission shaft by a predetermined angle.

또한 상기 변속축에는 상기 제어체가 승강할 수 있도록 단차홈이 형성되고, 상기 태양기어축에는 상기 제어체가 출몰할 수 있도록 홀이 형성되는 것이 바람직하다. In addition, it is preferable that a stepped groove is formed in the shift shaft so that the control body can move up and down, and a hole is formed in the sun gear shaft so that the control body can stand.

또한 상기 태양기어축의 홀을 통해 돌출된 상기 제어체가 상기 태양기어의 내주면에 걸려 고정 또는 해제할 수 있도록 상기 태양기어의 내주면에는 걸림턱이 형성되는 것이 바람직하다. In addition, it is preferable that a locking step is formed on the inner circumferential surface of the sun gear so that the control body protruding through the hole of the sun gear shaft can be caught or fixed to the inner circumferential surface of the sun gear.

본 발명에 의한 자전거는 뒷바퀴의 중심에 위치하는 허브축을 포함하는 변속허브; 및 상기 허브축에 직접 연결되는 관절크랭크;를 포함하며, 상기 관절크랭크는, 페달이 부착되는 페달크랭크암; 일단은 상기 페달크랭크암에 연결되고, 타단은 상기 허브축과 연결되어 상기 허브축을 회전시키는 회전크랭크암; 및 일단은 상기 페달크랭크암에 연결되고, 타단은 프레임에 회전가능하게 연결되어 상기 페달크랭크암의 방향을 일정하게 유지시키는 적어도 1개 이상의 방향유지크랭크암;을 포함한다. Bicycle according to the present invention is a shift hub including a hub shaft located in the center of the rear wheel; And a joint crank directly connected to the hub shaft, wherein the joint crank includes: a pedal crank arm to which a pedal is attached; A rotary crank arm having one end connected to the pedal crank arm and the other end connected to the hub shaft to rotate the hub shaft; And at least one direction holding crank arm, one end of which is connected to the pedal crank arm and the other end of which is rotatably connected to the frame to maintain a constant direction of the pedal crank arm.

또한 상기 방향유지크랭크암은 상기 회전크랭크암과 길이가 동일한 것이 바람직하다. In addition, the direction holding crank arm is preferably the same length as the rotary crank arm.

또한 상기 회전크랭크암과 방향유지크랭크암은 평행을 유지하면서 회전하는 것이 바람직하다. In addition, it is preferable that the rotating crank arm and the direction holding crank arm rotate while maintaining parallelism.

또한 상기 변속허브는, 바퀴살이 연결되는 허브쉘; 상기 허브축과 허브쉘 사이에 구비되어 상기 허브축에 의해 작동되고 상기 허브축을 통해 입력된 회전력을 상기 허브쉘에 전달하는 내장기어; 및 상기 허브쉘의 양측에 구비되어 프레임에 고정할 수 있는 고정엑슬;을 구비하는 것이 바람직하다. In addition, the shift hub, the hub shell is connected to the spokes; A built-in gear provided between the hub shaft and the hub shell to be operated by the hub shaft and to transmit a rotational force input through the hub shaft to the hub shell; And a fixed axle provided at both sides of the hub shell to be fixed to the frame.

본 발명에 따르면, 크랭크의 회전력을 허브에 전달하는 체인과 같은 전달장치 없이, 크랭크로 허브를 직접 구동시킴으로서, 체인장력에 의한 힘손실이 없어 자전거의 성능을 향상시키는 효과가 있다. According to the present invention, by directly driving the hub with the crank, without a transmission device such as a chain for transmitting the rotational force of the crank to the hub, there is no force loss due to the chain tension has the effect of improving the performance of the bicycle.

또한 체인, 구동스프라켓, 종동스프라켓 등 크랭크의 회전력을 허브에 전달하는 기존의 복잡한 전달장치가 없어 제품이 단순하고, 고장이 거의 없다. In addition, there is no existing complicated transmission device that transmits the rotational force of the crank to the hub such as chain, drive sprocket, and driven sprocket, so the product is simple and there is almost no failure.

도 1 및 도 2는 종래 자전거를 나타낸 것이다. 1 and 2 show a conventional bicycle.

도 3 내지 도 5는 본 발명에 의한 크랭크로 직접 구동되는 변속허브를 구체적으로 도시한 것이다. 3 to 5 specifically illustrate a shift hub driven directly to the crank according to the present invention.

도 6은 본 발명에 의한 변속허브와 관절크랭크가 구비된 자전거를 나타낸 것이다. Figure 6 shows a bicycle equipped with a shift hub and a joint crank according to the present invention.

도 7은 본 발명에 의한 변속허브에 연결되는 관절크랭크를 구체적으로 도시한 것이다. Figure 7 illustrates in detail the joint crank connected to the shift hub according to the present invention.

이하, 첨부된 도면을 참조하여 본 발명에 의한 크랭크로 직접 구동되는 변속허브(이하, '변속허브'라고 한다)의 구성 및 작용을 구체적으로 설명한다. Hereinafter, with reference to the accompanying drawings will be described in detail the configuration and operation of the shift hub (hereinafter referred to as "shift hub") directly driven by the crank according to the present invention.

도 3 및 도 4를 참조하면, 상기 변속허브(200)는 허브축(210)과, 허브쉘(220)과, 내장기어(Internal gear)와, 고정엑슬(251,252)을 포함한다. 3 and 4, the shift hub 200 includes a hub shaft 210, a hub shell 220, an internal gear, and fixed axles 251 and 252.

본 발명에 의한 허브축(210)은 뒷바퀴(도 6의 110)의 중심에 위치한다는 점에서는 통상적인 허브축과 동일하지만, 회전크랭크암(330)이 직접 연결되어 회전한다는 점, 즉, 회전력이 입력된다는 점에서는 통상적인 허브축과 상이하다. The hub shaft 210 according to the present invention is the same as a conventional hub shaft in that it is located at the center of the rear wheel (110 in FIG. 6), but the rotation crank arm 330 is directly connected and rotates, that is, the rotational force is It is different from the conventional hub axis in that it is input.

상기 허브쉘(220)은 바퀴살(도 6의 120)이 연결되는 구성요소이다. The hub shell 220 is a component to which the spokes (120 of Figure 6) is connected.

또한 상기 고정엑슬(251,252)은 상기 허브쉘(220)의 양측에 구비되어 프레임(F)에 고정할 수 있는 구성요소이다. 즉, 본 실시예에서는 허브축(210)이 회전하도록 구성되는 대신, 프레임(F)에 고정되는 고정엑슬(251,252)을 구비한다. In addition, the fixing axles 251 and 252 are provided on both sides of the hub shell 220 is a component that can be fixed to the frame (F). That is, in the present embodiment, instead of being configured to rotate the hub shaft 210, the fixed axles 251 and 252 fixed to the frame F are provided.

상기 내장기어는 상기 허브축(210)과 허브쉘(220) 사이에 구비되어 허브축(210)에 의해 작동되고 허브축(210)을 통해 입력된 회전력을 상기 허브쉘(220)에 전달하는 구성요소이다. The built-in gear is provided between the hub shaft 210 and the hub shell 220 is operated by the hub shaft 210 and configured to transfer the rotational force input through the hub shaft 210 to the hub shell 220. Element.

구체적으로 상기 내장기어는 태양기어축(231)과 위성기어시스템을 포함하여 구성된다. 상기 태양기어축(231)은 내부가 중공형성되어 허브축(210)이 관통하도록 설치된다. Specifically, the internal gear includes a sun gear shaft 231 and a satellite gear system. The sun gear shaft 231 is hollow so that the hub shaft 210 is installed therethrough.

본 실시예에서 상기 위성기어시스템은 위성기어(233A,233B,233C)를 구비한 3개의 캐리어(232A,232B,232C)와, 상기 위성기어(233A,233B,233C)와 외접으로 맞물리는 3개의 태양기어(234A,234B,234C)와, 상기 위성기어(233A,233B,233C)와 외접으로 맞물리는 3개의 링기어(235A,235B,235C)와, 허브쉘의 내주면에 접하여 회전력을 전달하는 3개의 클러치베어링((236A,236B,236C))으로 구성된다.In the present embodiment, the satellite gear system includes three carriers 232A, 232B, and 232C having satellite gears 233A, 233B, and 233C, and three external gears that are externally engaged with the satellite gears 233A, 233B, and 233C. Sun gears 234A, 234B and 234C, three ring gears 235A, 235B and 235C meshing externally with the satellite gears 233A, 233B and 233C, and 3 which transmits rotational force in contact with the inner circumferential surface of the hub shell. Two clutch bearings (236A, 236B and 236C).

보다 구체적으로 설명하면, 상기 태양기어(234A,234B,234C)는 상기 태양기어축(231)의 외측에 각각 구비된다. In more detail, the sun gears 234A, 234B, and 234C are provided outside the sun gear shaft 231, respectively.

또한 제1캐리어(232A)에는 제1태양기어(234A)와 맞물리는 제1위성기어(233A)가 구비되는데, 상기 제1위성기어(233A)는 제1캐리어(232A)에 등간격으로 3개가 축결합된다. In addition, the first carrier 232A is provided with a first satellite gear 233A meshing with the first sun gear 234A. Three first satellite gears 233A are equidistant from the first carrier 232A. Axially coupled.

또한 제2캐리어(232B)에는 제2태양기어(234B)와 맞물리는 제2위성기어(233B)가 구비되고, 상기 제2캐리어(232B)에는 상기 제1위성기어(233A)에 맞물리는 제1링기어(235A)가 일체형성되고 상기 제1링기어(235A)의 외주면에는 제1클러치베어링(236A)이 구비된다. In addition, the second carrier 232B is provided with a second satellite gear 233B that engages with the second sun gear 234B, and the second carrier 232B has a first satellite gear 233A that engages with the first satellite gear 233A. A ring gear 235A is integrally formed and a first clutch bearing 236A is provided on an outer circumferential surface of the first ring gear 235A.

또한 제3캐리어(232C)에는 제3태양기어(234C)와 맞물리는 제3위성기어(233C)가 구비되고, 상기 제3캐리어(232C)에는 상기 제2위성기어(233B)와 맞물리는 제2링기어(235B)가 일체형성되고, 상기 제2링기어(235B)의 외주면에 제2클러치베어링(236B)이 구비된다. In addition, the third carrier 232C is provided with a third satellite gear 233C that meshes with the third sun gear 234C, and the third carrier 232C has a second satellite gear 233B that is engaged with the second satellite gear 233B. The ring gear 235B is integrally formed, and a second clutch bearing 236B is provided on an outer circumferential surface of the second ring gear 235B.

마찬가지로 상기 제2위성기어(233B)와 제3위성기어(233C)도 제2캐리어(232B)와 제3캐리어(232C)에 각각 3개가 등간격으로 축결합된다. Similarly, three of the second satellite gear 233B and the third satellite gear 233C are axially coupled to the second carrier 232B and the third carrier 232C at equal intervals, respectively.

또한 본 실시예에는 상기 제3위성기어(233C)와 맞물리는 제3링기어(235C)와, 상기 제3링기어(235C)와 외주면에 구비된 제3클러치베어링(236C)을 포함한다. In addition, the present embodiment includes a third ring gear 235C engaged with the third satellite gear 233C, and a third clutch bearing 236C provided on the outer circumferential surface of the third ring gear 235C.

또한 본 발명에 의한 위성기어시스템에는 변속수단(240)이 더 구비된다. 상기 변속수단(240)은 변속축(241)과, 제어체(242)와, 와이어(243)를 포함한다. In addition, the satellite gear system according to the present invention is further provided with a transmission means 240. The shift means 240 includes a shift shaft 241, a control body 242, and a wire 243.

상기 변속축(241)은 허브축(210)과 태양기어축(231) 사이에 위치하고, 상기 제어체(242)는 상기 변속축(241)의 회전에 의해 상하로 작동되어 상기 태양기어(234B,234C)를 고정 또는 해제시키는 구성요소이다. The shift shaft 241 is located between the hub shaft 210 and the sun gear shaft 231, the control body 242 is operated up and down by the rotation of the shift shaft 241 is the sun gear 234B, 234C) is a component that locks or releases.

상기 제어체는 본 실시예와 달리 다양한 형태로의 변형이 가능하다. 예를 들어 금속구나 다면체 등으로 구성할 수 있다. 또는 통상의 폴로 구성하는 것도 가능하다. Unlike the present embodiment, the control body may be modified in various forms. For example, it can comprise with a metal, a polyhedron, etc. Or it can also comprise with a normal pole.

상기 변속축(241)에는 상기 제어체(242)가 승강할 수 있도록 단차홈(241a)이 형성되고, 상기 태양기어축(231)에는 상기 제어체(242)가 출몰할 수 있도록 홀(도 5의 231a)이 형성되어 있다. A stepped groove 241a is formed in the shift shaft 241 to allow the control body 242 to move up and down, and a hole for the control body 242 to wander in the sun gear shaft 231. 231a) is formed.

또한, 상기 태양기어(234B,234C)의 내주면에는 걸림턱(도 5의 234P)이 형성되어 있다. 따라서 상기 태양기어축(231)의 홀(231a)을 통해 돌출된 상기 제어체(242)가 상기 태양기어의 내주면에 형성된 걸림턱(234P)에 걸려 태양기어(234B,234C)가 태양기어축(231)에 고정되거나 또는 해제되는 것이다. In addition, a locking jaw (234P in FIG. 5) is formed on the inner circumferential surfaces of the sun gears 234B and 234C. Accordingly, the sun gears 234B and 234C are caught by the catching jaw 234P formed on the inner circumferential surface of the sun gear by the control body 242 protruding through the hole 231a of the sun gear shaft 231. 231) is fixed or released.

또한, 상기 와이어(243)는 상기 변속축(241)에 연결되어 사용자가 레버(미도시)를 조작함으로써 변속축(241)을 소정 각도 회전시키는 구성요소이다. In addition, the wire 243 is a component connected to the shift shaft 241 to rotate the shift shaft 241 by a predetermined angle by a user operating a lever (not shown).

상기 와이어는 가는 체인이나 벨트 등 당길 수 있는 모든 형태의 수단으로 대체 가능하다. The wire can be replaced by any type of pullable means, such as a thin chain or belt.

본 실시예에서 허브쉘(220)의 내주면에 회전력을 전달하는 클러치수단으로서 클러치베어링(236A~236C)을 예시하였으나, 이와 달리 통상적인 폴에 의해 허브쉘(220)을 회전시키는 구성도 가능하다. In the present exemplary embodiment, the clutch bearings 236A to 236C are illustrated as clutch means for transmitting rotational force to the inner circumferential surface of the hub shell 220. Alternatively, the hub shell 220 may be rotated by a conventional pawl.

도 3을 참조하여 본 발명에 의한 변속허브(200)의 작동상태를 설명한다. Referring to Figure 3 describes the operating state of the shift hub 200 according to the present invention.

도 3은 레버(미도시) 및 와이어(2430의 조작으로 변속축(241)을 소정 각도 회전시켜 제어체(242A)를 제어하여 제2태양기어(234B)만 고정시킨 상태이다. 즉, 제2태양기어(234B)는 돌출된 제어체(242A)에 의해 태양기어축(231)에 고정되어 회전되지 않는 상태이다. 3 is a state in which only the second sun gear 234B is fixed by controlling the control body 242A by rotating the shift shaft 241 by a predetermined angle by operating the lever (not shown) and the wire 2430. The sun gear 234B is fixed to the sun gear shaft 231 by the protruding control member 242A and is not rotated.

상기 허브축(210)에 연결된 회전크랭크암(330)이 회전하면 허브축(210)에 회전력이 입력되고, 이로 인해 제1캐리어(232A)가 회전하게 되고, 이 때 제1위성기어(233A)는 태양기어축(231)에 고정된 제1태양기어(234A)를 타고 넘으면서 제1링기어(235A)를 증속회전시킨다. 제1링기어(235A)의 회전으로 제2캐리어(232B)가 회전되고, 그에 따라 제2위성기어(233B)가 고정된 제2태양기어(234B)를 타고 넘으면서 제2링기어(235B)를 증속 회전시킨다. 그러나 제3태양기어(234C)는 태양기어축(231)에 고정되지 않고 해제된 상태이므로, 제3링기어(235C)에 회전력이 전달되지 않는다. 따라서 도 3에 도시된 상태에서는 제2링기어(235B)의 회전속도에 의해 허브쉘(220)이 회전하게 되는 것이다. When the rotating crank arm 330 connected to the hub shaft 210 rotates, a rotational force is input to the hub shaft 210, thereby causing the first carrier 232A to rotate, and at this time, the first satellite gear 233A. The motor rotates the first ring gear 235A at a high speed while riding over the first sun gear 234A fixed to the sun gear shaft 231. The second carrier 232B is rotated by the rotation of the first ring gear 235A, and thus the second ring gear 235B is crossed over the second sun gear 234B where the second satellite gear 233B is fixed. Rotate in increments. However, since the third sun gear 234C is not fixed to the sun gear shaft 231 and is released, the rotation force is not transmitted to the third ring gear 235C. Therefore, in the state shown in FIG. 3, the hub shell 220 is rotated by the rotation speed of the second ring gear 235B.

만약, 그 이상의 증속을 원한다면, 레버 및 와이어(243)의 조작으로 변속축(241)을 소정각도 회전하여 제어체(242B)를 돌출시켜 제3태양기어(234C)를 태양기어축(231)에 고정되도록 한다. If more speed is desired, by rotating the shift shaft 241 at a predetermined angle by manipulating the lever and the wire 243, the control body 242B is protruded and the third sun gear 234C is applied to the sun gear shaft 231. To be fixed.

한편, 본 발명의 변속허브에서 속도를 증가 또는 감소시키는 상기 내장기어의 위성기어시스템은 다양한 형태가 가능하며, 위성기어시스템이 아닌 다른 형태의 내장기어도 가능하다. On the other hand, the satellite gear system of the built-in gear to increase or decrease the speed in the shift hub of the present invention can be a variety of forms, other forms of internal gear other than the satellite gear system is possible.

또한 변속단수는 필요에 따라 증가시키거나 감소시킬 수 있는 것은 당연하다. It is also natural that the speed can be increased or decreased as needed.

도 6을 참조하면, 본 발명에 의한 자전거(100)는 페달크랭크암(320)과 회전크랭크암(330)과 방향유지크랭크암(340A,340B)을 포함하는 관절크랭크(도 7의 '300' 참조)와, 변속허브(도 3의 '200' 참조)를 포함한다.Referring to FIG. 6, the bicycle 100 according to the present invention includes a joint crank including the pedal crank arm 320, the rotating crank arm 330, and the direction holding crank arms 340A and 340B ('300' of FIG. 7). Reference), and the shift hub (see '200' of FIG. 3).

도 7을 참조하면, 본 발명에 의한 관절크랭크(300)는 페달크랭크암(320)과 회전크랭크암(330)과, 방향유지크랭크암(340,340A,340B)을 포함한다. 또한 상기 한 쌍의 관절크랭크(300)가 변속허브(200)의 양측에 결합되어 있다는 것을 알 수 있다. Referring to FIG. 7, the joint crank 300 according to the present invention includes a pedal crank arm 320, a rotating crank arm 330, and direction holding crank arms 340, 340A, and 340B. In addition, it can be seen that the pair of joint cranks 300 are coupled to both sides of the shift hub 200.

상기 페달크랭크암(320)은 페달(310)이 부착되어 압력이 전달되는 구성요소이다. The pedal crank arm 320 is a component to which the pedal 310 is attached to which pressure is transmitted.

상기 회전크랭크암(330)은 일단에 상기 페달크랭크암(320)이 연결되고 타단은 허브축(도 3의 '210')과 직접 연결되어 허브축(210)을 회전시키는 구성요소이다. The rotary crank arm 330 is one end of the pedal crank arm 320 is connected to the other end is directly connected to the hub shaft ('210' of Figure 3) is a component for rotating the hub shaft (210).

상기 방향유지크랭크암(340A,340B)은 페달크랭크암(320)의 방향을 일정하게 유지시키는 구성요소인데, 구성을 살펴보면, 일단은 페달크랭크암(320)과 연결되고 타단은 프레임(도 6의 'F')에 회전가능하게 연결된다. 상기 방향유지크랭크암(340A,340B)은 상기 프레임(F)과 페달크랭크암(320)에 각각 축결합되어 회전이 가능한 상태로 연결되고, 원활한 회전을 위해 베어링이 개재된다. The direction holding crank arms 340A and 340B are components that maintain a constant direction of the pedal crank arm 320. Looking at the configuration, one end is connected to the pedal crank arm 320 and the other end is a frame (Fig. 6). 'F') is rotatably connected. The direction holding crank arms 340A and 340B are axially coupled to the frame F and the pedal crank arm 320, respectively, and connected in a rotatable state, and bearings are interposed for smooth rotation.

또한 상기 방향유지크랭크암(340A,340B)은 상기 회전크랭크암(330)과 길이가 동일하게 구성되고, 상기 회전크랭크암(330)과 방향유지크랭크암(340A,340B)은 평행하게 설치된다. 따라서, 상기 회전크랭크암(330)과 방향유지크랭크암(340A,340B)은 항상 평행을 유지한 채로 360° 회전되는 것이다. In addition, the direction holding crank arms 340A and 340B have the same length as the rotation crank arm 330, and the rotation crank arm 330 and the direction holding crank arms 340A and 340B are installed in parallel. Therefore, the rotary crank arm 330 and the direction holding crank arms 340A and 340B are rotated 360 ° while always maintaining parallelism.

또한 상기 회전크랭크암(330)과 방향유지크랭크암(340A,340B)은 상호 간섭되지 않고 회전할 수 있도록 위에서 볼 때 적절하게 굴절되어 있다. In addition, the rotating crank arm 330 and the direction holding crank arms 340A and 340B are properly refracted when viewed from above so that they can rotate without mutual interference.

본 실시예에서 상기 방향유지크랭크암(340A,340B)은 2개로 구성되어 있지만, 이와 달리 1개로 구성되거나 3개 이상으로 구성되는 것도 가능하다. In the present embodiment, the direction holding crank arms 340A and 340B are composed of two, but alternatively, it may be composed of one or three or more.

이하, 본 발명에 따른 관절크랭크의 작동상태를 설명한다. Hereinafter, the operating state of the joint crank according to the present invention.

도 6 및 도 7을 참조하면, 페달(310)을 가압하면 페달크랭크암(320)은 방향을 일정하게 유지한 상태에서 회전크랭크암(330)이 회전을 한다. 상기 회전크랭크암(330)의 회전으로 허브축(210)이 회전되어 뒷바퀴(110)를 구동하는 것이다. 상기 페달크랭크암(320)이 방향을 일정하게 유지할 수 있는 것은 상기 회전크랭크암(330)과 2개의 방향유지크랭크암(340A,340B)의 작용에 의한 것이다. 6 and 7, when the pedal 310 is pressed, the pedal crank arm 320 rotates while the direction of the crank arm 320 is kept constant. The hub shaft 210 is rotated by the rotation of the rotary crank arm 330 to drive the rear wheel 110. The pedal crank arm 320 may maintain a constant direction by the action of the rotary crank arm 330 and the two direction holding crank arms 340A and 340B.

즉, 본 실시예에서 회전크랭크암(330)은 허브축(210)을 중심으로 360°회전운동하지만, 페달크랭크암(320)은 지면에 일정한 방향(도면상 수평한 방향)이 유지되도록 작동된다. 이러한 동작으로 페달(310)이 지면에 닿지 않고 회전할 수 있는 것이다. That is, in this embodiment, the rotary crank arm 330 rotates 360 ° about the hub shaft 210, but the pedal crank arm 320 is operated to maintain a constant direction (horizontal direction in the drawing) on the ground. . In this operation, the pedal 310 can rotate without touching the ground.

본 발명에 의하면 체인, 구동스프라켓, 종동스프라켓 등 크랭크의 회전력을 허브에 전달하는 기존의 복잡한 전달장치가 없어 제품이 단순하고, 고장이 거의 없기 때문에 실생활에 매우 유익하다. According to the present invention there is no existing complicated transmission device for transmitting the rotational force of the crank to the hub, such as chain, drive sprocket, driven sprocket, so the product is simple, there is almost no failure, which is very beneficial to real life.

Claims (10)

바퀴살이 연결되는 허브쉘;Hub shell is connected to the wheel; 상기 허브쉘의 중심에 구비되고, 크랭크가 연결되며, 상기 크랭크의 회전력이 입력되는 허브축;A hub shaft provided at the center of the hub shell and having a crank connected thereto and receiving rotational force of the crank; 상기 허브축과 허브쉘 사이에 구비되며, 상기 허브축을 통해 입력된 회전력을 상기 허브쉘에 전달하는 내장기어; 및 A built-in gear provided between the hub shaft and the hub shell to transfer the rotational force input through the hub shaft to the hub shell; And 프레임에 고정할 수 있도록 상기 허브쉘의 양측에 구비되는 고정엑슬;을 포함하는 것을 특징으로 하는 변속허브.A shifting hub comprising: a fixed axle provided on both sides of the hub shell to be fixed to the frame. 제1항에 있어서, The method of claim 1, 상기 내장기어는 상기 허브축의 외측에 설치되는 태양기어축이 구비되는 것을 특징으로 하는 변속허브.The internal gear is a shift hub, characterized in that the sun gear shaft is provided on the outside of the hub shaft. 제2항에 있어서, The method of claim 2, 상기 내장기어는 위성기어시스템이 더 구비되며, The built-in gear is further provided with a satellite gear system, 상기 위성기어시스템은,The satellite gear system, 위성기어를 구비한 1개 이상의 캐리어;One or more carriers with satellite gears; 상기 위성기어와 맞물리는 1개 이상의 태양기어와 링기어; 및 At least one sun gear and a ring gear meshing with the satellite gear; And 1개 이상의 클러치수단;을 포함하는 것을 특징으로 하는 변속허브.A shift hub comprising at least one clutch means. 제3항에 있어서, The method of claim 3, 상기 위성기어시스템에는 변속수단이 더 구비되며, The satellite gear system is further provided with a transmission means, 상기 변속수단은, The shift means, 상기 허브축과 태양기어축 사이에 위치하는 변속축;A shift shaft positioned between the hub shaft and the sun gear shaft; 상기 변속축의 회전에 의해 상하로 작동되어 상기 태양기어를 고정 또는 해제시키는 제어체; 및 A control body which is operated up and down by rotation of the shift shaft to fix or release the sun gear; And 상기 변속축과 연결되어 상기 변속축을 소정 각도 회전시키는 와이어;를 포함하는 것을 특징으로 하는 크랭크로 직접 구동되는 변속허브.And a wire connected to the speed change shaft to rotate the speed change shaft by a predetermined angle. 제4항에 있어서, The method of claim 4, wherein 상기 변속축에는 상기 제어체가 승강할 수 있도록 단차홈이 형성되고, A stepped groove is formed in the shift shaft so that the control body can move up and down, 상기 태양기어축에는 상기 제어체가 출몰할 수 있도록 홀이 형성되는 것을 특징으로 하는 변속허브.The shift gear, characterized in that a hole is formed in the sun gear shaft so that the control unit can be sunk. 제5항에 있어서, The method of claim 5, 상기 태양기어축의 홀을 통해 돌출된 상기 제어체가 상기 태양기어의 내주면에 걸려 고정 또는 해제할 수 있도록 상기 태양기어의 내주면에는 걸림턱이 형성되는 것을 특징으로 하는 변속허브.And a locking jaw is formed on an inner circumferential surface of the sun gear so that the control body protruding through the hole of the sun gear shaft is caught or fixed to the inner circumferential surface of the sun gear. 뒷바퀴의 중심에 위치하는 허브축을 포함하는 변속허브; 및 A shift hub including a hub shaft positioned at the center of the rear wheel; And 상기 허브축에 직접 연결되는 관절크랭크;를 포함하며, And a joint crank directly connected to the hub shaft. 상기 관절크랭크는, The joint crank is, 페달이 부착되는 페달크랭크암;A pedal crank arm to which a pedal is attached; 일단은 상기 페달크랭크암에 연결되고, 타단은 상기 허브축과 연결되어 상기 허브축을 회전시키는 회전크랭크암; 및 A rotary crank arm having one end connected to the pedal crank arm and the other end connected to the hub shaft to rotate the hub shaft; And 일단은 상기 페달크랭크암에 연결되고, 타단은 프레임에 회전가능하게 연결되어 상기 페달크랭크암의 방향을 일정하게 유지시키는 적어도 1개 이상의 방향유지크랭크암;을 포함하는 것을 특징으로 하는 자전거.And at least one direction holding crank arm, one end of which is connected to the pedal crank arm and the other end of which is rotatably connected to the frame to maintain a constant direction of the pedal crank arm. 제7항에 있어서, The method of claim 7, wherein 상기 방향유지크랭크암은 상기 회전크랭크암과 길이가 동일한 것을 특징으로 하는 자전거.And said direction holding crank arm is the same length as said rotary crank arm. 제8항에 있어서, The method of claim 8, 상기 회전크랭크암과 방향유지크랭크암은 평행을 유지하면서 회전하는 것을 특징으로 하는 자전거.And the rotating crank arm and the direction holding crank arm rotate while maintaining parallelism. 제7항에 있어서, The method of claim 7, wherein 상기 변속허브는, The shift hub, 바퀴살이 연결되는 허브쉘;Hub shell is connected to the wheel; 상기 허브축과 허브쉘 사이에 구비되어 상기 허브축에 의해 작동되고 상기 허브축을 통해 입력된 회전력을 상기 허브쉘에 전달하는 내장기어; 및 A built-in gear provided between the hub shaft and the hub shell to be operated by the hub shaft and to transmit a rotational force input through the hub shaft to the hub shell; And 상기 허브쉘의 양측에 구비되어 프레임에 고정할 수 있는 고정엑슬;을 구비하는 것을 특징으로 하는 자전거.And a fixed axle provided at both sides of the hub shell to be fixed to the frame.
PCT/KR2015/003774 2014-06-12 2015-04-15 Transmission hub directly driven by crank and bicycle including same Ceased WO2015190683A1 (en)

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KR1020140071177A KR101471460B1 (en) 2014-06-12 2014-06-12 Hub driven directly by crank
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KR1020140109983A KR101525032B1 (en) 2014-08-22 2014-08-22 Bicycle with hub driven directly by crank

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017175224A1 (en) * 2016-04-05 2017-10-12 JustRide Hub gear
WO2020052434A1 (en) * 2018-09-12 2020-03-19 昆山唐泽新能源科技有限公司 Automatic speed-changing hub

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03130793U (en) * 1990-04-17 1991-12-27
KR200418803Y1 (en) * 2006-02-20 2006-06-14 김시철 Driving device for bicycle using planetary gear
KR20090042131A (en) * 2007-10-24 2009-04-29 유동현 Drive of bicycle
KR20100127735A (en) * 2009-05-26 2010-12-06 변동환 Multi-stage gear shift
KR20120070464A (en) * 2010-12-21 2012-06-29 손성태 Powerful devices and apparatus of bicycle crank arm

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03130793U (en) * 1990-04-17 1991-12-27
KR200418803Y1 (en) * 2006-02-20 2006-06-14 김시철 Driving device for bicycle using planetary gear
KR20090042131A (en) * 2007-10-24 2009-04-29 유동현 Drive of bicycle
KR20100127735A (en) * 2009-05-26 2010-12-06 변동환 Multi-stage gear shift
KR20120070464A (en) * 2010-12-21 2012-06-29 손성태 Powerful devices and apparatus of bicycle crank arm

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017175224A1 (en) * 2016-04-05 2017-10-12 JustRide Hub gear
US9884666B2 (en) 2016-04-05 2018-02-06 JustRide Hub gear
JP2019516601A (en) * 2016-04-05 2019-06-20 ジャストライドＪｕｓｔｒｉｄｅ Hub gear
EP3650329A1 (en) * 2016-04-05 2020-05-13 JustRide Hub gear
US10752321B2 (en) 2016-04-05 2020-08-25 JustRide Hub gear
WO2020052434A1 (en) * 2018-09-12 2020-03-19 昆山唐泽新能源科技有限公司 Automatic speed-changing hub

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