KR950003661A - 크랭크 기구 - Google Patents

크랭크 기구 Download PDF

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Publication number
KR950003661A
KR950003661A KR1019930014408A KR930014408A KR950003661A KR 950003661 A KR950003661 A KR 950003661A KR 1019930014408 A KR1019930014408 A KR 1019930014408A KR 930014408 A KR930014408 A KR 930014408A KR 950003661 A KR950003661 A KR 950003661A
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KR
South Korea
Prior art keywords
arm
crank
rotating member
pinion
rotation
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KR1019930014408A
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English (en)
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KR100245960B1 (ko
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주상완
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주상완
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Classifications

    • 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
    • F16H21/00—Gearings comprising primarily only links or levers, with or without slides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
    • F02B75/048—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of a variable crank stroke length
    • 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
    • B62M3/02—Construction of cranks operated by hand or foot of adjustable length
    • B62M3/04—Construction of cranks operated by hand or foot of adjustable length automatically adjusting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B9/00—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups
    • F01B9/04—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with rotary main shaft other than crankshaft
    • F01B9/047—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with rotary main shaft other than crankshaft with rack and pinion
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
    • F16C3/22—Cranks; Eccentrics
    • F16C3/28—Adjustable cranks or eccentrics
    • 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
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
    • F16H37/124—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types for interconverting rotary motion and reciprocating 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/20—Land vehicles
    • F16C2326/28—Bicycle propulsion, e.g. crankshaft and its support
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18088—Rack and pinion type
    • Y10T74/18112—Segmental pinion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2164—Cranks and pedals
    • Y10T74/2167—Variable

Abstract

크랭크 아암의 회전궤적을 크게 하지 않고도, 소정의 작용력으로 부터 큰 토오크를 발생시킬 수 있는 크랭크 기구를 제공한다.
길이 방향으로 슬라이드 가능하게 연결된 제 1 아암(7)과 제 2 아암(8)에 의해 크랭크 아암(6)을 형성하고, 각 아암(7,8)의 연결부에, 크랭크 아암(6)과 연동해서 회전하는 피니언(13)을 설치한다. 제 2 아암(8)에, 평행으로 마주보는 래크(17,18)를 설치하여, 피니언(13)에 설치된 기어이빨(19)을 크랭크 아암이 반회전할 때마다 교대로 위의 래크(17)와 래크(18)가 맞물리게 한다. 상기의 구조에서는, 크랭크 아암(6)은 반회전마다 전장이 신축하고, 신장한 위치에서 외력을 작용시킴으로써, 큰 토오크를 발생시킬 수 있다.

Description

크랭크 기구
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 1 도 (a)는 본 실시예의 크랭크 기구를 도시한 종 정단면도이고, (b)는 그 작용상태를 도시한 단면도, 제 2 도는 제 1 도에 도시된 크랭크 기구의 횡평단면도,제 3 도는 제 2 도의 Ⅲ-Ⅲ선을 취한 단면도, 제 4 도(a)는 본 실시예의 회전궤적을 도시한 도면이고, (b)종래예의 회전궤적을 도시한 도면, 제 5 도는 제 2 실시예를 도시한 단면도.

Claims (7)

  1. 크랭크 기구에 있어서, 복수의 아암을 길이방향으로 슬라이드 가능하게 연결해서 크랭크 아암을 형성하고, 상기 각 아암의 연결부에, 크랭크 아암의 회전에 연동해서 회전하는 회전부재와, 그 회전부재의 회전을 연결부에 있어서 한쪽의 아암의 길이 방향의 직선운동으로 변환시키는 변화수단을 설치하여, 상기 회전부재가 한 방향으로 반회전 할때 변환수단이 연결부의 아암을 서로 멀어지게 하는 작용으로 변화시키고, 회전부재가 계속해서 반회전을 할때, 변환수단이 연결부의 아암이 근접 하도록 구성한 크랭크 장치.
  2. 제 1 항에 있어서, 상기 회전부재와, 크랭크 아암간의 연동경로를 차단하여 자유 상태로 하고, 그 상태에서 회전부재의 회전각도를 크랭크 아암의 회전에 대해 임의로 변환시키는 수단을 구비한 것을 특징으로 한 회전 기구.
  3. 제 1 항 또는 제 2 항에 있어서, 상기 변환수단과 한쪽의 아암을 분리하여 자유상태로 하고, 분리된 변환수단과 한쪽의 아암의 접속위치를 상대적으로 변환시키는 수단을 구비한 것을 특징으로 한 크랭크 기구.
  4. 제 1 항 내지 제 3 항에 있어서, 상기 변환수단을, 회전부재와 함께 회전하는 피니언과, 그 피니언을 중심으로 서로 마주보게 상기 한쪽의 아암 길이 방향으로 2개의 래크를 설치하고, 상기 피니언의 외주면의 일부에 설치한 기어이빨을, 크랭크 아암의 반회전 마다 교대로 상기 래크의 한쪽과 맞물리도록 구성한 것을 특징으로 하는 크랭크 기구.
  5. 제 1 항 내지 제 3 항에 있어서, 상기 변환수단을, 상기 회전부재와 한쪽의 아암을 접속하는 접속부재로 하고, 그 접속부재와 회전부재의 접속위치를 상기 회전부재의 회전중심으로 부터 편심시켜 구성한 것을 특징으로 하는 크랭크 기구.
  6. 제 1 항 내지 제 3 항에 있어서, 상기 변환수단을, 한쪽의 아암에 회전 가능하게 부착한 피니언과, 그 피니언을 중심으로 서로 마주보게 연결부의 양쪽의 아암에 각각 설치한 2개의 래크와, 상기 회전부재의 회전을 직선운동으로 변환하여 피니언의 중심에 아암의 길이 방향으로 힘을 가하는 전달부재등으로 형성하여, 상기 피니언에 형성한 기어이빨이 상기 2개의 래크와 동시에 맞물리도록 구성된 것을 특징으로 하는 크랭크 기구.
  7. 제 1 항 내지 6 항에 있어서, 상기 회전부재에 대한 회전의 압력을, 크랭크 아암의 전장의 임의의 위치에 설치하여, 그 크랭크 아암과 함께 회전하는 부재에 의해 행하여 지도록 구성된 것을 특징으로 하는 크랭크 기구.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019930014408A 1993-06-01 1993-07-28 크랭크 기구 KR100245960B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP13018593 1993-06-01
JP93-130185 1993-06-01
JP5174349A JPH0754829A (ja) 1993-06-01 1993-07-14 クランク装置
JP93-174349 1993-07-14

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KR950003661A true KR950003661A (ko) 1995-02-17
KR100245960B1 KR100245960B1 (ko) 2000-05-01

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US (1) US5566590A (ko)
EP (1) EP0634319B1 (ko)
JP (1) JPH0754829A (ko)
KR (1) KR100245960B1 (ko)
DE (1) DE69421124T2 (ko)

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FR943667A (fr) * 1946-11-26 1949-03-15 Pédalier de bicyclette à manivelle automatiquement variable
US3888136A (en) * 1974-06-04 1975-06-10 Fernand S Lapeyre Adjustable pedal and crank system for foot propelled vehicles
CH605241A5 (ko) * 1976-06-28 1978-09-29 Berclaz Rene Louis
US4882945A (en) * 1989-04-17 1989-11-28 Jose Trevizo Pedal extension device
EP0462099B1 (de) * 1990-05-22 1994-07-13 Rudolf Buchegger Kurbeltrieb
CA2060801C (en) * 1992-02-06 1994-11-08 Francois Garneau Pedal mechanism for a human propulsion vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100386851B1 (ko) * 1999-12-30 2003-06-09 강병남 자전거의 가변식 페달구동장치

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DE69421124T2 (de) 2000-05-25
US5566590A (en) 1996-10-22
EP0634319B1 (en) 1999-10-13
DE69421124D1 (de) 1999-11-18
JPH0754829A (ja) 1995-02-28
EP0634319A2 (en) 1995-01-18
KR100245960B1 (ko) 2000-05-01
EP0634319A3 (en) 1995-08-16

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