KR970059033A

KR970059033A - Pedal with variable effective length of crank arm and its mounting method

Info

Publication number: KR970059033A
Application number: KR1019960000328A
Authority: KR
Inventors: 양영만
Original assignee: 양영만
Priority date: 1996-01-10
Filing date: 1996-01-10
Publication date: 1997-08-12
Also published as: KR100217695B1

Abstract

본 발명은 자전거 같은 크랭크아암에 부착된 장치에 관한 것으로, 회전운동만을 사용하여 크랭크아암 스트로크의 동력을 창출하는 위상에서 유효한 크랭크아암의 길이를 증가시키게 되어, 크랭크아암이 12시 방향에 위치하였을 때 그 유효길이가 최대가 되고 3시 방향에 위치하였을 때 최소로 감소하였다가 6시 방향에 다시 유효거리가 늘어나므로 시승자가 다른 조작자의 동력창출을 극대화하게 되는 바, 본 발명에 따른 장치는 크랭크아암상에 편심되게 장착된 액슬을 갖추고, 이 액슬 외경과 내경의 축선상 반지름으로부터 상단부에 각각 약 1/2씩 볼베어링이 두 줄로 장착되었으며, 상기 액슬은 크랭크아암의 가장자리선단으로부터 이격되어지면서 바람직하기로 크랭크아암의 길이방향축을 따라 놓여진 회전축을 구획하게 되며, 상기 액슬에는 하우징이 액슬로 구획된 축주위를 회전하면서 액슬을 빙둘러 회전가능하게 장착되어 있다. 이때 12시 방향에서 3시 방향까지는 액슬 외경에 2줄의 홈속으로 강철볼(3)베어링이 축삽되어 그 주위를 회전하는 하우징내경축과 외경축에 접촉하게 되고, 3시 방향에서 6시 방향까지는 액슬(20)내경에 장착된 볼베어링이 축삽되어 그 주위를 회전하는 하우징내경축과 외경축에 접촉하여 유효길이를 극대화시킬 수 있는 장치이며, 볼베어링 위치는 나사스터트(58)와 이웃한 액슬(20)의 반원상단부 내경과 외경에 각각 한 쌍씩 설치되어 있으며, 액슬(20)의 하단부는 절개되거나 빈공간이므로 하우징내경축(21)과 외경축(18)은 이 액슬과 접촉하지 않도록 되어 있다.The present invention relates to a device attached to a crank arm such as a bicycle and uses only rotary motion to increase the length of the crank arm effective in phase to create power of the crank arm stroke, The effective length of the crank arm is maximized, and when the crank arm is located at 3 o'clock position, it is minimized, and the effective distance is further increased at 6 o'clock, And the ball bearing is mounted on the upper end of the ball bearing in two rows at a distance from the axial radial axis of the outer and inner diameters of the axle. The axle is spaced apart from the edge of the crank arm, The crank arm is divided into a rotation axis placed along the longitudinal axis of the crank arm, While rotating the segment about an axis to the axle it is rotatably mounted around the axle ice. In this case, from the 12 o'clock position to the 3 o'clock position, the steel ball (3) bearing is axially inserted into the outer periphery of the axle by two rows of grooves, so that the shaft is in contact with the outer shaft and the outer shaft, A ball bearing mounted on the inner diameter of the axle 20 is shrunk to be brought into contact with the outer shaft and the outer shaft of the housing rotating around the shaft to maximize the effective length of the ball bearing. And the outer shaft 21 and the outer shaft 18 are not in contact with the axle 20 because the lower end of the axle 20 is an incised or hollow space.

Description

Pedal with variable effective length of crank arm and its mounting method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제1도는 본 발명에 따른 장치의 크랭크아암이 12시 방향에 위치한 것을 도시한 측단면도,FIG. 1 is a side sectional view showing that the crank arm of the device according to the present invention is located at 12 o'clock,

제2도는 12시에서 6시 사이의 다양한 위치에서의 본 발명의 작동상태를 도시한 개략도,2 is a schematic view showing the operating state of the present invention at various positions between 12 o'clock and 6 o'clock,

제3도는 본 발명에 따른 장치의 우측단면도,Figure 3 is a right side view of the device according to the invention,

제4도는 본 발명에 따른 장치의 좌측단면도,4 is a left section view of the device according to the invention,

제5도는 본 발명에 따른 장치의 제2실시예의 12시 방향의 부분횡단면도,5 is a partial cross-sectional view at 12 o'clock direction of a second embodiment of the device according to the invention,

제6도는 본 발명에 따른 제3실시예의 6시 방향의 부분확대 횡단면도,6 is a partially enlarged cross-sectional view at 6 o'clock direction of a third embodiment according to the present invention,

제7도는 제4도의 4-4선 횡단면도,7 is a cross-sectional view taken along line 4-4 of FIG. 4,

제8도는 본 발명에 따른 장치의 분해도이다.Figure 8 is an exploded view of the device according to the invention.

Claims

The crank arm 10 having the axle 20 having the center front end 54 and the inner diameter 12 rotating about the fixed axis is fixed to the crank arm 10 at a distance between the center axis passing through the fixed shaft and the inner diameter 12 CLAIMS What is claimed is: 1. A pedal device extending a length of an effective crank arm with a crank length additionally comprising: an axle (20) defining a first rotational axis; And a member for mounting the axle (20) eccentrically adjacent to the crank arm (10), the first shaft being spaced a first distance from the inner diameter, and the mounting member having a first axis fixed to the crank arm ; The housing rotating about the first axis has an outer surface spaced a second distance from the first axis; When the effective length of the crank arm 10 is changed during rotation so that the crank is located at the 12 o'clock position, the sum of the fixed crank length and the first and second distances is obtained. When the effective crank length is located at 3 or 9 o'clock, Wherein the effective length of the crank arm is such that the sum of the first distance and the second crank length plus the second distance from the first crank length is a valid crank length when the crank arm is at the 6 o'clock position.

The pedal according to claim 1, wherein the first axis is located along a longitudinal axis of the crank arm (10), wherein the effective length of the crank arm is variable.

The pedal according to claim 1, wherein an effective length of the crank arm is variable, characterized in that the axle (20) is mounted on a normal bicycle crank arm (10) using the mounting member.

2. A device according to claim 1 characterized in that it has a threaded stator (58) eccentrically mounted on the axle (20) on the mounting member, the threaded stator (58) being fastened into the inner diameter in the crank arm Wherein the effective length of the crank arm is variable.

5. A crankcase according to claim 4, further comprising a threaded float (16) to be fastened into an inner diameter of the crank arm (10) and inserted into the opposite inner diameter from a threaded inner diameter (14) And the bearing of the threaded plug (16) against the tip of the crank arm (58) prevents the rotation of the axle (20) relative to the crank arm (10).

2. The crankcase according to claim 1, further comprising: a slot member having a slot to which a part of the crank arm (10) is to be assembled while the mounting member is attached to the axle (20); And a stator (58) projecting from the slot element into a first end of an inner diameter of the crank arm, the stator (58) having a threaded inner diameter for receiving a threaded fastener, the threaded fastener Characterized in that an effective length of the crank arm protruding into the second distal end of the one threaded inner diameter and fixed with the screwed fastener is fixed to the slot member on the crank arm (10). pedal.

The footrest according to claim 1, further comprising a footrest (32) attached to the housing (30), wherein a foot of a testee is placed on the footrest (32) while the crank arm Is spaced a third distance from the first axis while defining a plane perpendicular to the rotation of the housing (30); When the effective length of the crank is changed during rotation of the crank arm so that the crank arm is located at 12 o'clock, a value obtained by adding the length of the fixed crank and the first and third distances becomes the crank effective length, The crank length is a sum of the fixed crank length and the first distance. When the crankshaft is located at the 6 o'clock position, a value obtained by adding the fixed crank length and the first distance to the third distance is the effective length of the crank. Wherein the effective length of the crank arm is variable.

The footrest according to claim 7, further comprising a member holding a footrest (32) substantially perpendicular to the surface of the foot, and a footrest (32) capable of vertically rotating the footrest And when the pedestrian mounts the foot on the pedestal, the rotating pedestal is held horizontally, and if the pedestal is released, the existing pedestal 32 is always kept horizontal while rotating vertically. Variable pedal.

9. The apparatus according to claim 8, further comprising a weight (78) attached to a housing (30) opposite the foot support (32) to a member holding the foot support (32) perpendicular to the surface, Wherein the pedal (32) is rotated to a position where it vertically holds and fixes the pedestal (32).

2. A bearing according to claim 1, characterized in that the axle (20) is further provided with at least two detachable parts, the bearing is pierced by digging a semicircular groove in the upper end inner diameter and the outer diameter lateral position from the radius of the axle (20) And the inner shaft (21) and the outer shaft (18) of the housing are in contact with each other while rotating around the bearing to increase the effective length of the crank arm.

The effective length of the crank arm 10 having a fixed crank length that has an edge leading edge 56 with a center line and an inner diameter that rotate about the fixed end 54 and that defines a distance between the center line of the fixed axis and the inner diameter, A pedal device comprising: an axle (20) for defining a first rotary shaft; The axle 20 is eccentrically mounted on the end of the crank arm 10 in the radial direction and the first shaft spaced from the inner diameter by a first distance is mounted so as to be fixed with respect to the crank arm 10 ; A housing (30) rotating about the axle; And a footrest (32) which is attached to the housing and which separates a plane separated from the first axis by a third distance perpendicular to the rotation of the housing around the axle (20) while the feet of the testee are placed during rotation of the crank arm, When the effective length of the crank arm is changed during the rotation of the crank arm and the crank arm is located at 12 o'clock, a value obtained by summing the length of the fixed crank and the first and third distances becomes the effective length of the crank arm, The crank arm has a length obtained by adding the length of the fixed crank arm to the first distance. When the crank arm is located at the 6 o'clock position, the fixed crank length plus the third distance from the first distance is the effective length of the crank arm Variable pedal.

The axle 20 is eccentrically mounted on the edge line of the crank arm 10 so that the axle separates the first axis rotation apart from the edge of the crank arm and the axle is mounted on the crank, Not rotating about the arm; And a step of rotatably mounting a housing (30) on the axle (20) with an outer circumference spaced a second distance from the first axis while rotating about the first axis, wherein during rotation of the crank arm When the effective length of the crank is changed and the crank arm is located at 12 o'clock, the distance between the length of the fixed crank and the first and second distances becomes the effective length of the crank arm, and the crank arm is positioned at 3 or 9 o'clock When the crank arm is located at the 6 o'clock position, a value obtained by adding the fixed crank length to the first distance plus the second distance is the effective length of the crank, Wherein the length of the crank arm effective during rotation of the crank arm is varied.

13. The method according to claim 12, wherein the step of eccentrically mounting the axle (20) comprises the step of mounting the axle so that the first axis lies along the longitudinal axis of the crank arm (10) .

13. The method according to claim 12, further comprising the step of attaching a footrest (32) to the housing (30), wherein the footrest is placed in a plane perpendicular to the rotation of the housing around the axle And when the crank arm is located at the 12 o'clock position and the effective length of the crank is changed during the rotation of the crank arm, the fixed crank length and the first and third distances When the crank arm is located at the 3 o'clock or 9 o'clock position, the length is equal to the sum of the fixed crank length and the first distance. When the crank arm is located at the 6 o'clock position, Wherein the effective length of the crank arm is the effective length of the crank.

※ Note: It is disclosed by the contents of the first application.