WO2012026751A2 - Bicycle having a hub capable of transmitting power from either side thereof - Google Patents

Bicycle having a hub capable of transmitting power from either side thereof Download PDF

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Publication number
WO2012026751A2
WO2012026751A2 PCT/KR2011/006242 KR2011006242W WO2012026751A2 WO 2012026751 A2 WO2012026751 A2 WO 2012026751A2 KR 2011006242 W KR2011006242 W KR 2011006242W WO 2012026751 A2 WO2012026751 A2 WO 2012026751A2
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WO
WIPO (PCT)
Prior art keywords
hub
gear
pedal
bicycle
power transmission
Prior art date
Application number
PCT/KR2011/006242
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French (fr)
Korean (ko)
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WO2012026751A3 (en
Inventor
김복성
김도환
Original Assignee
Kim Bog Sung
Kim Do Hwan
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Publication date
Priority claimed from KR1020100083113A external-priority patent/KR100989680B1/en
Application filed by Kim Bog Sung, Kim Do Hwan filed Critical Kim Bog Sung
Publication of WO2012026751A2 publication Critical patent/WO2012026751A2/en
Publication of WO2012026751A3 publication Critical patent/WO2012026751A3/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
    • B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
    • B62M11/02—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of unchangeable ratio
    • 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
    • B62M9/02—Transmissions characterised by use of an endless chain, belt, or the like of unchangeable ratio

Definitions

  • the present invention relates to a bicycle, and more particularly, having a hub that allows the hub gears on both sides to be rotated at the same rotation speed at the same time, and having a hub capable of continuously driving the left and right pedals even when the pedal shafts are separated from each other. It's about one bike.
  • a bicycle generally includes a power transmission device 100 using a chain, and a rotation force of a pedal gear is applied to a hub gear of a rear wheel through a chain as a user rotates the pedal by applying artificial force. It is one of the means of transportation that is transmitted and moved forward with the rear wheel rotating together with the rear wheel.
  • the power transmission device 100 will be described with reference to FIG. 2.
  • the power transmission device 100 includes an integrated pedal set 113 in which both pedals 112 are coupled to one pedal shaft 111, a pedal gear 114 coupled to the pedal shaft 111, and a hub (
  • the hub gear 130 is coupled to the 120, the hub 120 through which the central shaft of the rear wheel penetrates and the wheels are connected, and a chain 140 for transmitting power. That is, in a typical bicycle, both pedals are directly coupled to one pedal shaft 111.
  • FIG 3 is an assembled state diagram of the hub 120 of the conventional chain bicycle
  • Figure 4 is a schematic exploded perspective view of the hub 120
  • Figure 5 is a detailed exploded perspective view of the hub 120.
  • the general hub 120 is connected to the wheel of the rear wheel hub hub 122 through which the hub fixing shaft 121 penetrates, screwing one side of the hub shell 122
  • the ratchet wheel 130 and the hub shell 122 includes a nut 124 for fixing the hub fixing shaft.
  • the ratchet wheel 130 has a pole wheel 131 is provided with a pole 132 on the outer circumferential surface, and a pole gear 133a is formed on the inner circumferential surface to engage the pole 132 so that power is transmitted only in one direction.
  • the sprocket wheel 133 is formed, the chain sprocket 133b is formed, and the pole wheel 131 is installed in the sprocket wheel 133 and includes a wheel cap 134 for fixing them.
  • Such a conventional bicycle is a main cause of the failure of the bicycle because the chain is frequently separated or cut from the gear, there is a problem that the loss of energy occurs in the process of transmitting the rotational force through the chain.
  • the general bicycle configured as described above has a long transmission path between the pedal gear and the hub gear because the pedal gear is provided on one side of the bicycle. Therefore, there is a problem that a loss of energy occurs in the process of transmitting the rotational force through the chain.
  • the pedal shaft can only be located outside the radius of the rear wheels.
  • an object of the present invention is to provide a hub for both hub gears to be rotated at the same speed at the same time, even if the left and right pedal shafts are separated continuously driving the left and right pedals In providing a bicycle having a hub that can be.
  • the bicycle having a hub capable of power transmission in both sides is provided with at least one pole on the outer circumferential surface, each of the rotation shaft is coupled or integrally formed with the hub gear; And a hub shaft through which the rotating shaft penetrates, a pole gear is formed on the inner circumferential surface thereof so as to transmit power by engaging the pawl, and wheel wheels of the rear wheels are connected to each other. Rotate by rotation
  • the pedal shaft includes a pair of pedals, a pair of pedal gears respectively coupled to the pair of pedals, and a pair of power transmission means for transmitting the rotational force of the pedal gear to the hub gear, respectively It is preferable.
  • the power transmission means is preferably at least one idle gear positioned between the pedal gear and the hub gear.
  • the power transmission means is preferably a chain.
  • the pedal shaft is preferably located within the radius of the rear wheel.
  • pedal gears and hub gears are provided on both sides of the rear wheel, respectively, and there is an effect of driving them by rotating them.
  • the pedal shafts can be provided close to the rear wheel side, thereby improving power transmission efficiency.
  • the hub gears on both sides rotate at the same rotation speed at the same time, even if the pedal gears are provided on the left and right respectively, the left and right pedals can be driven continuously.
  • the bicycle is shorter than the conventional bicycle, the weight of the bicycle is not only reduced, but also easy to store and transport.
  • FIG. 1 is a front view of a conventional chain bicycle
  • Figure 2 schematically shows a power transmission device of a conventional chain bicycle.
  • 3 to 5 show the configuration of a hub used in a conventional chain bicycle.
  • Figure 12 shows another embodiment according to the present invention.
  • an embodiment according to the present invention includes a front wheel and a rear wheel, a frame and a saddle, and a power transmission device 1.
  • the power transmission device 1 is a pedal set 10 composed of a pair of pedals 12 provided on the left and right sides of the rear wheel, and a pair of pedal gears 20 that are rotated by being coupled to the pedal shaft 11. ), A pair of hub gears 30 provided on the center shaft of the rear wheel (hub fixed shaft 61), and the pedal gears to match the rotational direction of the pedal gear 20 and the hub gear 30. 20) and a pair of idle gears (40) mounted between the hub gear (30).
  • the idle gear 40 has side walls formed at both ends of the gear tooth. It is meshed with the pedal gear 20 or the hub gear 30 into the two side walls. Due to the formation of the sidewalls, the pedal gear 20, the idle gear 30, and the hub gear 40 may be prevented from being separated from each other, thereby achieving a tight fit. Conversely, the idle gear has the same effect by forming side walls at both ends of the gear teeth of the pedal gear and the hub gear without the side wall being formed.
  • the center of the idle gear 40 is fixed to the frame.
  • the pedal gear 20 is rotated by rolling any one pedal 12, the rotational force is to rotate the rear wheel through the idle gear 40 and the hub gear (30).
  • this embodiment can be seen that the pedal shaft (center of the pedal gear, 11) is installed within the radius of the rear wheel. It is well known that the closer the pedal shaft 11 is to the center of the rear wheel, the faster the reaction and the higher the power transmission efficiency. According to the present invention, since the pedal shaft 11 is separated from left and right, the pedal shaft 11 can be installed closer to the center of the rear wheel than the conventional bicycle. Therefore, the power transmission distance is significantly reduced, thereby minimizing the power loss.
  • the hub 60 of the present invention includes a hub fixing shaft 61, a hub shell 63, and a rotation shaft 62.
  • the hub shell (63) has flanges (63b) formed on both sides thereof so that the wheels (50) of the rear wheels are connected, and a pole gear (63a) is formed on an inner circumferential surface thereof.
  • the rotary shaft 62 penetrates through the inside of the hub shell 63, and at least one pawl 62c is provided on an outer circumferential surface thereof. Specifically, the pawl 62c is provided in the seating groove 62b formed on the outer circumferential surface of the rotary shaft 62, and is supported to elastically protrude by the wire spring 62d. The pawl 62c is engaged with the pole gear 63a to rotate the hub shell 63 in one direction.
  • flanges 62a are formed at both sides of the rotary shaft 62, and hub gears 30 are screwed to each of the flanges 62a.
  • the hub gears 30 on both sides may be rotated in synchronization.
  • the pair of hub gear 30 may be integrally formed on both sides of the rotary shaft 62.
  • the rotary shaft 62 is formed by separating any one of the flanges (62a) and then combined. This is to facilitate the assembly through the hub shell (63).
  • a hub fixing shaft 61 fixed to the frame of the bicycle is inserted into the center of the rotating shaft 62, and a nut 64 fixing the rotating shaft 62 to the hub fixing shaft 61 is further included. It is provided.
  • a bearing B is provided between the rotary shaft 62 and the hub shell 63 and between the rotary shaft 62 and the nut 64 to facilitate rotation.
  • the hub shaft 30 is coupled between the hub shell 63 and the hub fixing shaft 61 by operating the rotation shaft 62 to which the hub gear 30 is coupled.
  • the pedal gears provided on both the left and right sides also match the rotation speed, and the pedals 12 on both sides are also positioned at 180 ° to each other so that the bicycle user can drive the pedal. Will be.
  • the present embodiment uses the minimum gear for power transmission efficiency of the bicycle in driving the bicycle with the gears installed separately on the left and right sides without the chain, and the rotation of the gears mounted on both sides for driving the bicycle. And a power train 1 with a hub 60 necessary to match the numbers.
  • a plurality of idle gears may be provided.
  • an odd number of idle gears may be provided to match the rotation direction of the pedal gear and the hub gear, or an even number of idle gears may be provided to reverse the rotation direction of the pedal gear and the hub gear, and then the rear wheel may be rotated through the transmission. It is also possible to match the pedal gear with the direction of rotation.
  • the chain 70 is provided as a power transmission means instead of the idle gear (40 in Figure 7).
  • the pedal shafts 11 on both sides are separated, the pedal shaft 11 can be installed closer to the center of the rear wheel than in the related art. Accordingly, the chain length can be shortened, thereby improving power transmission efficiency. .

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Gear Transmission (AREA)
  • Structure Of Transmissions (AREA)
  • Automatic Cycles, And Cycles In General (AREA)

Abstract

The present invention relates to a bicycle, and more particularly, to a bicycle having a hub, wherein hub gears arranged at either side of the hub simultaneously rotate at the same RPM so as to continuously rotate left and right pedals even when the pedal shafts thereof are separated into a left pedal shaft and a right pedal shaft. The bicycle having a hub capable of transmitting power from either side thereof according to the present invention comprises said hub, wherein the hub includes: a rotating shaft, the outer surface of which has one or more poles, and hub gears are coupled to or integrally formed with either side of the hub, respectively; and a hub shell through which the rotating shaft penetrates, and the inner surface of which has pole gears which are to engage with the poles so as to transmit power, wherein the spokes of the rear wheel are connected to the hub shell, and the hub gears rotate simultaneously at the same RPM.

Description

양측에서 동력전달이 가능한 허브를 구비한 자전거Bicycles with hubs that can transfer power from both sides
본 발명은 자전거에 관한 것으로서, 보다 상세하게는 양측의 허브기어가 동시에 동일한 회전수로 회전되게 하는 허브를 구비하여 페달샤프트가 좌우에 각각 분리되어 있어도 좌우 페달을 연속적으로 구동할 수 있는 허브를 구비한 자전거에 관한 것이다. The present invention relates to a bicycle, and more particularly, having a hub that allows the hub gears on both sides to be rotated at the same rotation speed at the same time, and having a hub capable of continuously driving the left and right pedals even when the pedal shafts are separated from each other. It's about one bike.
도 1에 도시된 바와 같이, 일반적으로 자전거는 체인을 이용한 동력전달장치(100)를 구비하여 사용자가 인위적인 힘을 부여하여 페달을 회전시킴에 따라 페달기어의 회전력이 체인을 통해 후륜의 허브기어에 전달되어 후륜과 함께 전륜이 회전하면서 전진 이동되는 교통수단의 하나이다. As shown in FIG. 1, a bicycle generally includes a power transmission device 100 using a chain, and a rotation force of a pedal gear is applied to a hub gear of a rear wheel through a chain as a user rotates the pedal by applying artificial force. It is one of the means of transportation that is transmitted and moved forward with the rear wheel rotating together with the rear wheel.
도 2를 참조하여 동력전달장치(100)를 설명한다. 상기 동력전달장치(100)는 1개의 페달샤프트(111)에 양쪽 페달(112)이 결합되어 있는 일체형 페달세트(113)와, 페달샤프트(111)에 결합되는 페달기어(114)와, 허브(120)에 결합되어 있는 허브기어(130)와, 후륜의 중심샤프트가 관통되고 바퀴살이 연결되어 있는 허브(120)와, 동력을 전달하는 체인(140)을 포함한다. 즉, 일반적인 자전거는 양쪽 페달이 하나의 페달샤프트(111)에 직접 결합되는 것이다.  The power transmission device 100 will be described with reference to FIG. 2. The power transmission device 100 includes an integrated pedal set 113 in which both pedals 112 are coupled to one pedal shaft 111, a pedal gear 114 coupled to the pedal shaft 111, and a hub ( The hub gear 130 is coupled to the 120, the hub 120 through which the central shaft of the rear wheel penetrates and the wheels are connected, and a chain 140 for transmitting power. That is, in a typical bicycle, both pedals are directly coupled to one pedal shaft 111.
도 3은 종래 체인 자전거의 허브(120)의 조립 상태도이고, 도 4는 허브(120)의 개략적인 분해 사시도이며, 도 5는 허브(120)의 세부 분해 사시도이다. 3 is an assembled state diagram of the hub 120 of the conventional chain bicycle, Figure 4 is a schematic exploded perspective view of the hub 120, Figure 5 is a detailed exploded perspective view of the hub 120.
도 3 및 도 4를 참조하면, 일반적인 허브(120)는 후륜의 바퀴살이 연결되고 내부에는 허브고정샤프트(121)가 관통하는 허브쉘(122)과, 상기 허브쉘(122)의 일측에 나사결합되는 래칫휠(130)과, 상기 허브쉘(122)을 허브고정샤프트에 고정시키는 콘너트(124)를 포함한다.  3 and 4, the general hub 120 is connected to the wheel of the rear wheel hub hub 122 through which the hub fixing shaft 121 penetrates, screwing one side of the hub shell 122 The ratchet wheel 130 and the hub shell 122 includes a nut 124 for fixing the hub fixing shaft.
또한 상기 래칫휠(130)은 외주면에 폴(132)이 구비되는 폴휠(131)과, 내주면에 상기 폴(132)과 맞물려 일방향으로만 동력이 전달되도록 하는 폴기어(133a)가 형성되고 외주면에는 체인이 물리는 스프라켓(133b)이 형성되는 스프라켓휠(133)과, 상기 폴휠(131)이 상기 스프라켓휠(133)의 내부에 설치된 후 이들을 고정하는 휠캡(134)을 포함한다.  In addition, the ratchet wheel 130 has a pole wheel 131 is provided with a pole 132 on the outer circumferential surface, and a pole gear 133a is formed on the inner circumferential surface to engage the pole 132 so that power is transmitted only in one direction. The sprocket wheel 133 is formed, the chain sprocket 133b is formed, and the pole wheel 131 is installed in the sprocket wheel 133 and includes a wheel cap 134 for fixing them.
이러한 종래의 자전거는 체인이 기어로부터 이탈하거나 절단되는 일이 빈번하게 일어나 자전거 고장의 주원인이 되며, 체인을 통해 회전력이 전달되는 과정에서 에너지의 손실이 발생되는 문제점이 있다. Such a conventional bicycle is a main cause of the failure of the bicycle because the chain is frequently separated or cut from the gear, there is a problem that the loss of energy occurs in the process of transmitting the rotational force through the chain.
위와 같이 구성된 일반적인 자전거는 페달기어가 자전거의 일측에 마련되기 때문에 페달기어와 허브기어 사이의 동력전달경로가 길 수밖에 없는 구조이다. 따라서 체인을 통해 회전력이 전달되는 과정에서 에너지의 손실이 발생되는 문제점이 있다.  The general bicycle configured as described above has a long transmission path between the pedal gear and the hub gear because the pedal gear is provided on one side of the bicycle. Therefore, there is a problem that a loss of energy occurs in the process of transmitting the rotational force through the chain.
또한 체인이 기어로부터 이탈하거나 절단되는 일이 빈번하여 잦은 고장의 원인이 된다.  In addition, the chain is often dislodged or cut from the gear, causing frequent failures.
또한 한 쌍의 페달이 하나의 페달기어에 연결되어 있기 때문에 페달샤프트는 후륜의 반경범위 밖에 위치될 수밖에 없다.In addition, since a pair of pedals are connected to one pedal gear, the pedal shaft can only be located outside the radius of the rear wheels.
본 발명은 상술한 문제점을 해결하기 위하여 안출된 것으로서, 본 발명의 목적은 양측의 허브기어가 동시에 동일한 회전수로 회전되게 하는 허브를 구비하여 좌우의 페달샤프트가 분리되어 있어도 좌우 페달을 연속적으로 구동할 수 있는 허브를 구비한 자전거를 제공함에 있다. The present invention has been made to solve the above problems, an object of the present invention is to provide a hub for both hub gears to be rotated at the same speed at the same time, even if the left and right pedal shafts are separated continuously driving the left and right pedals In providing a bicycle having a hub that can be.
위와 같은 기술적 과제를 해결하기 위하여 본 발명에 의한 양측에서 동력전달이 가능한 허브를 구비한 자전거는 외주면에 적어도 1 이상의 폴이 구비되고, 양측에 각각 허브기어가 결합되거나 일체로 형성되는 회전샤프트; 및 상기 회전샤프트가 관통되고, 내주면에는 상기 폴과 맞물려 동력이 전달되도록 하는 폴기어가 형성되며 후륜의 바퀴살이 연결되는 허브쉘;을 포함하는 허브가 구비되어, 상기 한 쌍의 허브기어가 동시에 동일한 회전수로 회전된다.  In order to solve the technical problem as described above, the bicycle having a hub capable of power transmission in both sides according to the present invention is provided with at least one pole on the outer circumferential surface, each of the rotation shaft is coupled or integrally formed with the hub gear; And a hub shaft through which the rotating shaft penetrates, a pole gear is formed on the inner circumferential surface thereof so as to transmit power by engaging the pawl, and wheel wheels of the rear wheels are connected to each other. Rotate by rotation
또한 페달샤프트가 분리된 한 쌍의 페달과, 상기 한 쌍의 페달에 각각 결합되는 한 쌍의 페달기어와, 상기 페달기어의 회전력을 상기 허브기어에 각각 전달하는 한 쌍의 동력전달수단을 포함하는 것이 바람직하다.  In addition, the pedal shaft includes a pair of pedals, a pair of pedal gears respectively coupled to the pair of pedals, and a pair of power transmission means for transmitting the rotational force of the pedal gear to the hub gear, respectively It is preferable.
또한 상기 동력전달수단은 상기 페달기어와 허브기어 사이에 위치되는 적어도 1 이상의 아이들기어인 것이 바람직하다.  In addition, the power transmission means is preferably at least one idle gear positioned between the pedal gear and the hub gear.
또한 상기 동력전달수단은 체인인 것도 바람직하다.  In addition, the power transmission means is preferably a chain.
또한 상기 페달샤프트는 상기 후륜의 반경범위 내에 위치되는 것이 바람직하다. In addition, the pedal shaft is preferably located within the radius of the rear wheel.
본 발명에 따르면, 후륜의 양측에 각각 페달기어와 허브기어를 구비하고, 이들을 회전시켜 구동할 수 있는 효과가 있다.  According to the present invention, pedal gears and hub gears are provided on both sides of the rear wheel, respectively, and there is an effect of driving them by rotating them.
따라서 좌우의 페달샤프트가 분리형성되기 때문에, 페달샤프트를 후륜측에 근접하여 구비할 수 있어 동력전달효율을 향상시킬 수 있다.  Therefore, since the left and right pedal shafts are separated, the pedal shafts can be provided close to the rear wheel side, thereby improving power transmission efficiency.
특히, 양측의 허브기어가 동시에 동일한 회전수로 회전하기 때문에 페달기어가 좌우에 각각 구비되더라도 좌우 페달을 연속적으로 구동할 수 있게 된다.  In particular, since the hub gears on both sides rotate at the same rotation speed at the same time, even if the pedal gears are provided on the left and right respectively, the left and right pedals can be driven continuously.
또한 자전거의 길이가 기존의 자전거에 비해 짧기 때문에 자전거의 무게를 줄일 수 있을 뿐 아니라 보관 및 운반이 용이하다. In addition, because the bicycle is shorter than the conventional bicycle, the weight of the bicycle is not only reduced, but also easy to store and transport.
도 1은 종래 체인 자전거의 정면도이며, 도 2는 종래 체인 자전거의 동력전달장치를 개략적으로 나타낸 것이다. 1 is a front view of a conventional chain bicycle, Figure 2 schematically shows a power transmission device of a conventional chain bicycle.
도 3 내지 도 5는 종래 체인자전거에 사용하고 있는 허브의 구성을 나타는 것이다. 3 to 5 show the configuration of a hub used in a conventional chain bicycle.
도 6은 본 발명에 의한 실시예를 나타낸 것이다.  6 shows an embodiment according to the present invention.
도 7 및 도 8은 도 6에 도시된 실시예의 동력전달장치를 나타낸 것이다.  7 and 8 show a power train of the embodiment shown in FIG.
도 9 내지 도 11은 도 6에 도시된 실시예의 허브를 나타낸 것이다.  9 to 11 show the hub of the embodiment shown in FIG. 6.
도 12는 본 발명에 의한 다른 실시예를 나타낸 것이다.  Figure 12 shows another embodiment according to the present invention.
이하, 첨부된 도면을 참조하여 본 발명에 의한 실시예의 구성 및 작용을 설명한다.  Hereinafter, with reference to the accompanying drawings will be described the configuration and operation of the embodiment according to the present invention.
도 6 내지 도 8을 참조하면, 본 발명에 의한 실시예는 전륜과 후륜, 프레임과 안장 및 동력전달장치(1)를 포함한다.  6 to 8, an embodiment according to the present invention includes a front wheel and a rear wheel, a frame and a saddle, and a power transmission device 1.
상기 동력전달장치(1)는 후륜의 좌측 및 우측에 각각 구비되는 한 쌍의 페달(12)과, 페달샤프트(11)에 결합되어 회전되는 한 쌍의 페달기어(20)로 구성된 페달세트(10)와, 후륜의 중심샤프트(허브고정샤프트,61)에 구비되는 한 쌍의 허브기어(30)와, 상기 페달기어(20)와 허브기어(30)의 회전방향을 일치시키기 위해 상기 페달기어(20)와 허브기어(30) 사이에 장착되는 한 쌍의 아이들기어(40)를 포함한다.  The power transmission device 1 is a pedal set 10 composed of a pair of pedals 12 provided on the left and right sides of the rear wheel, and a pair of pedal gears 20 that are rotated by being coupled to the pedal shaft 11. ), A pair of hub gears 30 provided on the center shaft of the rear wheel (hub fixed shaft 61), and the pedal gears to match the rotational direction of the pedal gear 20 and the hub gear 30. 20) and a pair of idle gears (40) mounted between the hub gear (30).
또한 상기 아이들기어(40)는 기어치(齒)의 양단에 측벽이 형성되어 있다. 이러한 양측벽 내부로 페달기어(20) 또는 허브기어(30)와 치합되는 것이다. 상기 측벽의 형성으로 인해 페달기어(20)와 아이들기어(30)와 허브기어(40)가 상호 이탈되는 것을 방지하여 견고한 치합을 이룰 수 있는 것이다. 도시된 것과 반대로 아이들기어는 측벽이 형성되지 않고 페달기어와 허브기어의 기어치의 양단에 측벽을 형성함으로써 동일한 효과가 있다.  In addition, the idle gear 40 has side walls formed at both ends of the gear tooth. It is meshed with the pedal gear 20 or the hub gear 30 into the two side walls. Due to the formation of the sidewalls, the pedal gear 20, the idle gear 30, and the hub gear 40 may be prevented from being separated from each other, thereby achieving a tight fit. Conversely, the idle gear has the same effect by forming side walls at both ends of the gear teeth of the pedal gear and the hub gear without the side wall being formed.
또한 상기 아이들기어(40)의 중심은 프레임에 고정설치된다.  In addition, the center of the idle gear 40 is fixed to the frame.
위와 같은 구성으로 인해, 어느 하나의 페달(12)을 구르면 페달기어(20)가 회전하게 되고, 이러한 회전력은 아이들기어(40) 및 허브기어(30)를 통해 후륜을 회전시킬 수 있는 것이다.  Due to the configuration as described above, the pedal gear 20 is rotated by rolling any one pedal 12, the rotational force is to rotate the rear wheel through the idle gear 40 and the hub gear (30).
특히, 본 실시예는 상기 페달샤프트(페달기어의 중심,11)가 후륜의 반경 범위 내에 설치된다는 것을 알 수 있다. 상기 페달샤프트(11)가 후륜의 중심에 가까울수록 반응이 빨라 동력전달효율이 높다는 것은 주지의 사실이다. 본 발명에 의하면 페달샤프트(11)가 좌우에 분리되어 있기 때문에 종래의 자전거에 비해 페달샤프트(11)를 후륜의 중심에 보다 근접하여 설치할 수 있는 것이다. 따라서 동력전달거리가 현저히 감소되고, 그에 따라 동력손실을 최소화할 수 있다.  In particular, this embodiment can be seen that the pedal shaft (center of the pedal gear, 11) is installed within the radius of the rear wheel. It is well known that the closer the pedal shaft 11 is to the center of the rear wheel, the faster the reaction and the higher the power transmission efficiency. According to the present invention, since the pedal shaft 11 is separated from left and right, the pedal shaft 11 can be installed closer to the center of the rear wheel than the conventional bicycle. Therefore, the power transmission distance is significantly reduced, thereby minimizing the power loss.
한편, 본 발명에 의한 실시예는 좌우 양측의 페달(12)을 가압하면 각각 양측의 허브기어(30)에 회전력이 전달되기 때문에, 양측의 페달(12)을 회전시켜 발생하는 회전력이 충돌하지 않고 상호 보완하면서 후륜을 회전시킬 수 있는 허브가 있어야 자전거의 작동이 가능하다. 특히, 허브기어(30)가 후륜의 좌우 양측에 각각 구비되기 때문에 이들의 회전수를 일치시킬 수 있는 허브구조가 반드시 필요하다. 양측 허브기어(30)의 회전수가 동일하지 않을 경우에 좌우 페달(12)을 연속적으로 교대로 구동할 수 없기 때문이다. 예를 들어, 좌측의 페달(12)을 가압할 때, 좌측 허브기어(30)뿐 아니라 우측 허브기어(30)도 동시에 동일한 회전수로 회전할 수 있도록 하는 허브구조가 요구되는 것이다.  On the other hand, in the embodiment according to the present invention, since the rotational force is transmitted to the hub gears 30 on both sides when the pedals 12 on the left and right sides are pressed, the rotational force generated by rotating the pedals 12 on both sides does not collide. Complementary complementary hubs can be used to operate the bike. In particular, since the hub gear 30 is provided on both the left and right sides of the rear wheel, a hub structure that can match the rotational speed thereof is necessary. This is because the left and right pedals 12 cannot be driven successively alternately when the rotational speeds of both hub gears 30 are not the same. For example, when pressing the pedal 12 on the left side, a hub structure is required so that not only the left hub gear 30 but also the right hub gear 30 can rotate at the same speed.
도 9는 본 발명에 의한 허브(60)의 조립 상태도이고, 도 10은 분해 사시도이며, 도 11은 세부 분해 사시도이다. 이를 참조하면, 본 발명의 허브(60)는 허브고정샤프트(61)와, 허브쉘(63)과, 회전샤프트(62)를 포함한다.  9 is an assembled state diagram of the hub 60 according to the present invention, FIG. 10 is an exploded perspective view, and FIG. 11 is a detailed exploded perspective view. Referring to this, the hub 60 of the present invention includes a hub fixing shaft 61, a hub shell 63, and a rotation shaft 62.
상기 허브쉘(63)은 상기 후륜의 바퀴살(50)이 연결되도록 플랜지(63b)가 양측에 형성되고, 내주면에는 폴기어(63a)가 형성된다.  The hub shell (63) has flanges (63b) formed on both sides thereof so that the wheels (50) of the rear wheels are connected, and a pole gear (63a) is formed on an inner circumferential surface thereof.
상기 회전샤프트(62)는 상기 허브쉘(63)의 내부를 관통하고, 외주면에 적어도 1 이상의 폴(62c)이 구비된다. 구체적으로 설명하면, 상기 폴(62c)은 상기 회전샤프트(62)의 외주면에 형성된 안착홈(62b)에 구비되는데, 와이어 스프링(62d)에 의해 탄성적으로 돌출되도록 지지된다. 상기 폴(62c)은 상기 폴기어(63a)와 맞물려 허브쉘(63)을 일방향으로 회전시킨다.  The rotary shaft 62 penetrates through the inside of the hub shell 63, and at least one pawl 62c is provided on an outer circumferential surface thereof. Specifically, the pawl 62c is provided in the seating groove 62b formed on the outer circumferential surface of the rotary shaft 62, and is supported to elastically protrude by the wire spring 62d. The pawl 62c is engaged with the pole gear 63a to rotate the hub shell 63 in one direction.
또한 상기 회전샤프트(62)의 양측에는 플랜지(62a)가 형성되고, 각 플랜지(62a)에는 허브기어(30)가 나사체결된다. 이로 인해 양측의 허브기어(30)는 동기되어 회전되는 것이 가능하다. 또한 상기 한 쌍의 허브기어(30)가 상기 회전샤프트(62)의 양측에 일체로 형성되는 것도 가능하다.  In addition, flanges 62a are formed at both sides of the rotary shaft 62, and hub gears 30 are screwed to each of the flanges 62a. As a result, the hub gears 30 on both sides may be rotated in synchronization. In addition, the pair of hub gear 30 may be integrally formed on both sides of the rotary shaft 62.
상기 회전샤프트(62)는 어느 하나의 플랜지(62a)를 분리하여 형성한 다음 결합한 것이다. 이것은 상기 허브쉘(63)을 관통하여 조립하는 것을 용이하게 하기 위한 것이다.  The rotary shaft 62 is formed by separating any one of the flanges (62a) and then combined. This is to facilitate the assembly through the hub shell (63).
또한 상기 회전샤프트(62)의 중심에는 자전거의 프레임에 고정되는 허브고정샤프트(61)가 삽입되고, 상기 회전샤프트(62)를 상기 허브고정샤프트(61)에 고정하는 콘너트(64)가 더 구비된다.  In addition, a hub fixing shaft 61 fixed to the frame of the bicycle is inserted into the center of the rotating shaft 62, and a nut 64 fixing the rotating shaft 62 to the hub fixing shaft 61 is further included. It is provided.
또한 상기 회전샤프트(62)와 허브쉘(63) 사이와, 상기 회전샤프트(62)와 콘너트 (64) 사이에는 회전을 원활하게 하기 위하여 베어링(B)이 구비된다.  In addition, a bearing B is provided between the rotary shaft 62 and the hub shell 63 and between the rotary shaft 62 and the nut 64 to facilitate rotation.
도시된 바와 같이 상기 허브기어(30)가 결합되는 회전샤프트(62)를 상기 허브쉘(63)과 허브고정샤프트(61) 사이에 개재하여 허브쉘(63)을 작동시킴으로써 양측 허브기어(30)가 동시에 같은 회전수로 회전하게 되고, 그에 따라 좌우 양측에 구비된 페달기어들 역시 회전수가 일치하게 되며, 양측의 페달(12) 또한 서로 180˚방향에 위치하게 되어 자전거 사용자가 페달을 구동할 수 있게 되는 것이다.  As shown, the hub shaft 30 is coupled between the hub shell 63 and the hub fixing shaft 61 by operating the rotation shaft 62 to which the hub gear 30 is coupled. Are rotated at the same speed at the same time, accordingly, the pedal gears provided on both the left and right sides also match the rotation speed, and the pedals 12 on both sides are also positioned at 180 ° to each other so that the bicycle user can drive the pedal. Will be.
이상과 같이 본 실시예는 체인 없이 좌우에 분리되어 설치되어 있는 기어들로 자전거를 구동함에 있어 자전거의 동력전달 효율성을 위해 최소한의 기어를 사용하고, 자전거의 구동을 위해 양측에 장착된 기어들의 회전수를 일치시키는데 반드시 필요한 허브(60)를 구비한 동력전달장치(1)를 포함한다.  As described above, the present embodiment uses the minimum gear for power transmission efficiency of the bicycle in driving the bicycle with the gears installed separately on the left and right sides without the chain, and the rotation of the gears mounted on both sides for driving the bicycle. And a power train 1 with a hub 60 necessary to match the numbers.
그러나 본 실시예와 달리 아이들기어는 복수개로 구비할 수 있다. 즉, 페달기어와 허브기어의 회전방향을 일치시키기 위하여 홀수개의 아이들기어를 구비할 수도 있고, 또는 짝수개의 아이들기어를 구비하여 페달기어와 허브기어의 회전방향을 반대로 한 다음, 변속기를 통해 후륜을 페달기어와 회전방향을 일치시키는 것도 가능하다.  However, unlike the present embodiment, a plurality of idle gears may be provided. In other words, an odd number of idle gears may be provided to match the rotation direction of the pedal gear and the hub gear, or an even number of idle gears may be provided to reverse the rotation direction of the pedal gear and the hub gear, and then the rear wheel may be rotated through the transmission. It is also possible to match the pedal gear with the direction of rotation.
도 12는 본 발명에 의한 다른 실시예를 도시한 것이다. 도 7에 도시된 실시예와 대비하면, 아이들기어(도 7의 40) 대신에 동력전달수단으로서 체인(70)이 구비되어 있는 것을 알 수 있다. 본 발명에 의하면 양측의 페달샤프트(11)가 분리되어 있기 때문에 종래에 비해 페달샤프트(11)가 후륜의 중심에 근접설치가 가능하고, 그에 따라 체인길이를 짧게 할 수 있어 동력전달효율이 향상된다. 12 shows another embodiment according to the present invention. In contrast to the embodiment shown in Figure 7, it can be seen that the chain 70 is provided as a power transmission means instead of the idle gear (40 in Figure 7). According to the present invention, since the pedal shafts 11 on both sides are separated, the pedal shaft 11 can be installed closer to the center of the rear wheel than in the related art. Accordingly, the chain length can be shortened, thereby improving power transmission efficiency. .

Claims (5)

  1. 외주면에 적어도 1 이상의 폴이 구비되고, 양측에 각각 허브기어가 결합되거나 일체로 형성되는 회전샤프트; 및  At least one pole is provided on the outer circumferential surface, the rotating shaft is coupled to or integrally formed on each side of the hub gear; And
    상기 회전샤프트가 관통되고, 내주면에는 상기 폴과 맞물려 동력이 전달되도록 하는 폴기어가 형성되며 후륜의 바퀴살이 연결되는 허브쉘;을 포함하는 허브가 구비되어, 상기 한 쌍의 허브기어가 동시에 동일한 회전수로 회전되는 것을 특징으로 하는 양측에서 동력전달이 가능한 허브를 구비한 자전거.  The rotating shaft is penetrated, the inner circumferential surface is formed with a pole gear that is coupled to the pole to transmit power and the hub shell is connected to the wheel wheels of the rear wheel is provided, the pair of hub gear is rotated at the same time Bicycle having a power transmission hub on both sides, characterized in that rotated by the number.
  2. 제1항에 있어서,  The method of claim 1,
    페달샤프트가 분리된 한 쌍의 페달과, A pair of pedals with separate pedal shafts,
    상기 한 쌍의 페달에 각각 결합되는 한 쌍의 페달기어와, A pair of pedal gears respectively coupled to the pair of pedals,
    상기 페달기어의 회전력을 상기 허브기어에 각각 전달하는 한 쌍의 동력전달수단을 포함하는 것을 특징으로 하는 양측에서 동력전달이 가능한 허브를 구비한 자전거.  And a pair of power transmission means for transmitting the rotational force of the pedal gear to the hub gear, respectively.
  3. 제2항에 있어서,  The method of claim 2,
    상기 동력전달수단은 상기 페달기어와 허브기어 사이에 위치되는 적어도 1 이상의 아이들기어인 것을 특징으로 하는 양측에서 동력전달이 가능한 허브를 구비한 자전거.  The power transmission means is a bicycle having a power transmission hub on both sides, characterized in that at least one idle gear positioned between the pedal gear and the hub gear.
  4. 제2항에 있어서,  The method of claim 2,
    상기 동력전달수단은 체인인 것을 특징으로 하는 양측에서 동력전달이 가능한 허브를 구비한 자전거.  The power transmission means is a bicycle having a hub capable of power transmission from both sides, characterized in that the chain.
  5. 제3항에 있어서,  The method of claim 3,
    상기 페달샤프트는 상기 후륜의 반경범위 내에 위치되는 것을 특징으로 하는 양측에서 동력전달이 가능한 허브를 구비한 자전거.The pedal shaft is a bicycle having a power transmission hub on both sides, characterized in that located within the radial range of the rear wheel.
PCT/KR2011/006242 2010-08-26 2011-08-24 Bicycle having a hub capable of transmitting power from either side thereof WO2012026751A2 (en)

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JP2008273462A (en) * 2007-05-07 2008-11-13 Matsumoto Kei Bicycle of short overall length
JP2008290586A (en) * 2007-05-25 2008-12-04 Kei Matsumoto Bicycle with short overall length
KR100989680B1 (en) * 2010-04-09 2010-10-26 김도환 Power transmissiong apparatus for bicycle having one body type hub

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10112682B2 (en) * 2016-01-07 2018-10-30 T. Pong Company Method to sever and disengage a bicycle drivetrain between the crank axis and rear wheel axle, thereby enabling a fold in the bicycle frame at a specified point between said crank axis and rear wheel axle on a vertical or near vertical axis parallel to the plane of the drive train
FR3089486A1 (en) * 2018-12-05 2020-06-12 Bruno Thoreau WEIGHT BICYCLE FOR STRENGTHENING GAIN AS WELL AS MUSCLE

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TW201210889A (en) 2012-03-16
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