WO2009025519A2

WO2009025519A2 - Handle rolling bicycle with variable device of rolling angle

Info

Publication number: WO2009025519A2
Application number: PCT/KR2008/004904
Authority: WO
Inventors: Hun Geun Park
Original assignee: Hun Geun Park
Priority date: 2007-08-22
Filing date: 2008-08-22
Publication date: 2009-02-26
Also published as: KR20090020070A; WO2009025519A3; KR100935589B1

Abstract

Provided is a steering wheel rolling bicycle, which includes: a locker housing fixed to the steering wheel and having a rear side of the locker housing axially mounted to a frame axis; a locker movable within the locker housing and having a binding unit at one side of the locker; an adjustment knob for controlling movement of the locker; and an axis case fixed to the front wheel fork axially mounted on the front wheel, and having the penetrated frame axis and a binding unit corresponding to the locker binding unit at one side of the axis case, wherein the binding units are coupled/uncoupled when the locker moves. Accordingly, the bicycle allows not only persons with a great physical strength but persons with a weak physical strength such as women, children and the old or persons with a small height to easily and safely use the bicycle.

Description

HANDLE ROLLING BICYCLE WITH VARIABLE DEVICE OF

ROLLING ANGLE

Technical Field

[1] The present invention relates to a bicycle driven by rolling operations of a steering wheel, and in particularly, to a steering wheel rolling bicycle haying a rolling angle adjusting means that allows a rider to adjust the rolling angle of the steering wheel so that the steering wheel angle can be adjusted with respect to a front wheel fork. Background Art

[2] In general, the bicycle allows the rider to pedal on the bicycle to generate a power, wherein a sprocket rotated by both pedals rotates the rear wheel via a chain so that the bicycle can move.

[3] Such bicycles move by means of a foot power applied on both pedals by the rider, and bicycles utilizing the power generated from a motor or an internal combustion engine have been developed in recent years.

[4] In this connection, an invention has been proposed by the present inventor, which breaks the general concept of the bicycle utilizing pedal driving and uses a steering wheel of the bicycle to drive its front wheel so that upper and lower body movements of a rider can be effectively done and balanced development of the physical body can be derived (see Korean Utility Model Registered No. 20-0307145).

[5] In addition, the present inventor has improved the bicycle driven by the steering wheel manipulation (hereinafter, it will be referred to as a steering wheel rolling bicycle.), which is shown in FIGS. 1 and 2. Although the steering wheel rolling bicycle of FIG, 1 is illustrated as a tricycle, it is also possible to apply the steering wheel rolling structure to a general bicycle.

[6] With reference to FIGS. 1 and 2, the steering wheel rolling bicycle according to the related art of the present inventor largely includes a steering wheel 10 for steering the bicycle, a frame 2 connected to the steeling wheel and a foot plate 20 connected to a rear side of the frame 2, wherein a support plate 17 where the steering wheel 10 is mounted is arranged in a front side of the frame 2, and the support plate 17 is arranged in the front wheel fork 16 such that it can be tilted in a front or back direction by a predetermined angle centered from the rear connection pin 18.

[7] The front wheel fork 16 has a bracket 21 for supporting the front wheel driving sprocket 21 at its central position, and the front wheel driving sprocket 21 is rotatably arranged at an axis 32 provided in the bracket 22 and is connected to a follower sprocket 23 arranged in the front wheel support axis 24 where the front wheel 31 is fixed by means of the chain 26.

[8] As a result, the front wheel can be driven by rotation of the follower sprocket 23 resulting from the rotation of the front wheel driving sprocket 21.

[9] In addition, a lower end of the link 27 for rotating the front wheel driving sprocket 21 is rotatably connected to the support plate 17 via the axis 28 in the front end of the support plate 17, and a lower end of the link 27 is rotatably connected to the front wheel driving sprocket 21 via the pin 30 at a position spaced apart from a center of the front wheel driving sprocket 21.

[10] The link 27 receives an elastic force of the spring member 29 disposed in the axis 28, wherein one end of the spring member 29 is supported by the support plate 17 and the other end thereof is connected and fixed to the link 27. Such a spring member 29 is disposed to apply a pressure to the link 27 in a front or back direction by the steering wheel 10 being pushed or pulled, that is, in a rotating direction of the front wheel driving sprocket 21.

[11] According to the structure described above, when the steering wheel 10 is pushed forward, the link 27 is pushed downward by the support plate 17, and the sprocket 21 rotatably disposed at the axis 32 in the bracket 22 is rotated downward by the downward movement of the link 27. The follower sprocket 23 connected to the sprocket 21 via the chain 26 is then rotated to make the front wheel 31 of the bicycle rotate.

[12] In the meantime, when the link 27 moves downward, the spring member 29 acts to cause the link 27 to be pulled back, and the steering wheel 10 is not pushed any more when the pin 30 reaches the point right below the axis 32, that is, the dead point.

[13] The rider pulls the steering wheel 10 toward the body to continuously drive the bicycle when the pin 30 reaches the dead point. When the steering wheel 10 is pulled, the link 27 of the sprocket 21 moves upward. At this time, the spring member 29 acts to cause the link 27 to be pressed forward.

[14] The elastic force of the spring member 29 is continuously applied until the pin 30 reaches the point right above the axis 32, that is, the top point.

[15] As such, the elastic force is applied to the spring member 29 by means of pulling or pushing the steering wheel 10, and this elastic force acts to push or pull the link 27, so that the rider can push or pull the steering wheel with a less power to drive on a steep path such as an inclined path without problems.

[16] However, the invention as illustrated in FIGS. 1 and 2 does not allow the structure of pushing or pulling the steering wheel to be changed to correspond to the difference between heights or physical forces of the riders, so that the height and age ranges of the rider are relatively limited. Disclosure of Invention

Technical Problem

[17] An object of the present invention is to provide a steering wheel rolling bicycle haying a rolling angle adjustment means, which allows a driving power to be transferred to the front wheel by means of pulling and pushing movements of the steering wheel in front and back directions for driving the bicycle and also allows a fixed angle of the steering wheel, that is, a fixed angle of the steering wheel with respect to the front wheel fork axially disposed in the front wheel to be variably adjusted. Technical Solution

[18] The object of the present invention is accomplished by a steering wheel rolling bicycle having a front wheel 31 being rotated by a reciprocal movement of a steering wheel 10 in front/back direction, and the bicycle includes: a locker housing 40 fixed to the steering wheel and having a rear side of the locker housing axially mounted to a frame axis 71 ; a locker 50 movable within the locker housing and having a binding unit 52 at one side of the locker; an adjustment knob 60 configured to control movement of the locker; and an axis case 60 fixed to the front wheel fork 16 axially mounted on the front wheel, having the penetrated frame axis 71, and having a binding unit 72 corresponding to the locker binding unit 52 at one side of the axis case, wherein the binding units 52 and 72 are coupled/uncoupled with/from each other when the locker moves.

Advantageous Effects

[19] According to the present invention, the bicycle allows not only persons with a great physical strength but persons with a weak physical strength such as women, children and the old or persons with a small height to easily and safely use the bicycle.

Brief Description of the Drawings [20] FIG. 1 is a whole perspective view of a steering wheel rolling bicycle that was filed with the Korean Intellectual Property Office by the present inventor. [21] FIG. 2 is an enlarged view of a rolling driving unit 100 of FIG. 1.

[22] FIG. 3 is an enlarged perspective view of a rolling driving unit in accordance with the present invention. [23] FIG. 4 is a cross-sectional view illustrating an internal structure of a rolling driving unit in accordance with the present invention. [24] FIG. 5 is a cross-sectional view illustrating a first operation status of a rolling driving unit in accordance with the present invention. [25] FIG. 6 is a cross-sectional view illustrating a second operation status of a rolling driving unit in accordance with the present invention. [26] FIG. 7 is a cross-sectional view illustrating a third operation status of a rolling driving unit in accordance with the present invention. Best Mode for Carrying Out the Invention

[27] Hereinafter, preferred structures of the present invention will be described in detail with reference to FIGS 3 to 7.

[28] FIG. 3 is an enlarged perspective view of a rolling driving unit in accordance with the present invention, FIG. 4 is a cross-sectional view illustrating an internal structure of a rolling driving unit in accordance with the present invention, which are improved structures of the rolling driving unit 100 illustrated in FIG. 1, and the same reference numerals are given to the same components as those shown in FIG 1.

[29] Referring to FIGS. 3 and 4 (and referring to FIG. 1 and 2 with respect to the other portions than FIGS. 3 and 4), in the steering wheel rolling bicycle having a front wheel 31 rotating by means of reciprocal movement of a steering wheel 10 in front/back direction, the rolling driving means 100 of the present invent ion includes: a locker housing 40 fixed to the steering wheel and having a rear side of the locker housing axially mounted to a frame axis 71 ; a locker 50 movable within the locker housing and having a binding unit 52 at one side of the locker; an adjustment knob 60 configured to control movement of the locker; and an axis case 60 fixed to the front wheel fork 16 axially mounted on the front wheel, having the penetrated frame axis 71, and having a binding unit 72 corresponding to the locker binding unit 52 at one side of the axis case.

[30] At this time, the locker 50 may be disposed to be ascended or descended within the housing, and the adjustment knob 60 for controlling the ascend/descend of the locker 50 may vertically penetrate the locker 50 and the locker housing 40 as shown in FIGS. 3 and 4.

[31] More specifically, the locker housing 40 is fixed to the support plate 17 fixed with the steering wheel 10, and the frame axis 71 penetrates the rear portion of the locker housing to be rotated with the axis case 70, and configurations of the reciprocal movement of the steeling wheel 10 in front and back directions and the connection of the support plate 17 are already described with reference to FIGS 1 and 2, so that a detailed description thereof will be omitted.

[32] The locker 50 disposed within the locker housing 40 has a groove 51 for arranging the elastic member 55 such as a coil spring at an upper portion of the locker housing and an internal height of the locker 50 is designed to be higher than the height of the locker 50, so that the locker 50 can be ascended/descended in up/down direction within the locker housing 40, and a binding unit 52 having a zigzag shape along the ci rcumference of the frame axis 71 is disposed at a rear side of the locker 50.

[33] The adjustment knob 60 having the knob axis 61 penetrating the locker 50 in up/ down direction is exposed at an upper end of the locker housing 40 as shown in FIG. 4 or a lower end of the locker housing which is not shown in FIGS. 3 and 4 so that the rider can adjust rotation, and at this time, the other end of the knob axis 61 is connected and fixed to the lower end or the upper end of the locker housing 40 to be axially and rotatably disposed without deviation.

[34] Screw tabs are formed in an outer circumferential surface of the knob axis 61 and the inner circumferential surface of the locker 50 to correspond to each other, respectively. Accordingly, when the knob axis 61 rotates, the locker 50 is ascended/descended by the rotation of the screw thread, and it is of course that the ascending/descending range of the locker 50 is limited within the locker housing 40.

[35] In this case, the elastic member 55 such as a coil spring disposed at an outer circumferential surface of the knob axis 61 within the groove 51 provides an elastic force to the locker 50 in a vertical direction, and a force is thus applied in a vertical direction of the locker 50 with respect to the locker housing 40, and this elastic force is transferred to the adjustment knob 60 tapping-screwed with the locker 50, so that the adjustment knob 60 can maintain its fixed state without being rotated except that the rider applies a force greater than the elastic force of the elastic member 55, that is, the force of the rider.

[36] In the meantime, the axis case 70 axially disposed in the frame axis 71 is fixed to a pair of front wheel forks 16 connected to the front wheel 31 of the bicycle, and has the binding unit 72 having a zigzag shape to be bound with the corresponding locker binding unit 52 and the uneven binding unit 72 of the axis case 70 is also positioned on the circumference of the frame axis 71.

[37] The reference numeral 29 that is not described is an element, which provides an elastic force for reverting to its original position at the time of reciprocal movement of the steering wheel 10 in front/back direction as described with reference to FIGS. 1 and 2, so that a detailed description thereof will be omitted.

[38] Hereinafter, the rolling angle adjustment unit of the present invention, that is, an operation for adjusting the fixed angle of the steering wheel will be described with reference to FIGS. 5 to 7, and constitutional components of the present invention will be more apparent by the following description.

[39] FIG. 5 is a cross-sectional view illustrating a first operation status of a rolling driving unit in accordance with the present invention, FIG. 6 is a cross-sectional view illustrating a second operation status of a rolling driving unit in accordance with the present invention, and FIG. 7 is a cross-sectional view illustrating a third operation status of a rolling driving unit in accordance with the present invention.

[40] When the fixed angle of the steering wheel 10 needs to be changed backward while the binding unit 52 of the locker is coupled with the binding unit 72 of the axis case as described with reference to FIG. 4, the adjustment knob 60 is made to rotate to move the locker 50 downward as shown in FIG. 5.

[41] When the locker 50 moves downward, the locker 50 is fixed in a downward position by the elastic force of the elastic member 55 while the binding units 52 and 72 are uncoupled from each other. At this time, the locker housing 40 is still fixed to be rotatable with respect to the axis case 70 by means of the frame axis 72.

[42] Accordingly, when the steering wheel 10 moves backward as shown in FIG 6, the locker housing 40 fixed to the steering wheel 10 can turn on a pivot of the frame axis 72. When the adjustment knob 60 is reversely rotated as shown in FIG. 7 while the steering wheel 10 is moved to a desired position, the locker 50 moves upward to make the binding unit 52 of the locker coupled with the binding unit 72 of the axis case each other.

[43] Comparing FIG. 4 with FIG. 7 in terms of position of the steering wheel 10, the steering wheel 10 is positioned at a front side in FIG. 4 whereas the steering wheel 10 is positioned at a more rear side in FIG. 7 than FIG. 4, which indicates that the steering wheel is in proportion to the saddle position of the bicycle. That is, the distance between the saddle and the steering wheel 10 in FIG. 7 is greater than the distance between the saddle and the steering wheel 10 In FIG. 4, so that the case of FIG, 4 is suitable for a rider baying a greater height whereas the opposite case is suitable for a rider having a smaller height.

[44] As such, when reciprocal positions of the steering wheel 10 in front/back direction can be adjusted and fixed, any of the old, children, women and adults can use the bicycle while conforming to physical strength or body condition. Industrial Applicability

[45] According to a steering wheel rolling bicycle haying a rolling angle adjustment means of the present invention, the bicycle can be driven by a pulling or pushing movement of a steering wheel so that a rider can ride the bicycle even on a steep path or inclined path with a less power, and can contribute to physically balanced development of upper and lower bodies, and a fixed angle of the steering wheel can also be varied and fixed with respect to front wheel fork axially disposed in the front wheel so that the steering wheel can be suitably conformed to height, physical strength or body structure of the rider, which thus allows not only persons with a great physical strength but persons with a weak physical strength such as women, children and the old or persons with a small height to easily and safely use the bicycle.

Claims

[1] A steering wheel rolling bicycle ,having a front wheel 31 that rotates by means of front/back reciprocal movement of a steering wheel 10, comprising: a locker housing 40 fixed to the steering wheel and having a rear side of the locker housing axially mounted to a frame axis 71 ; a locker 50 movable within the locker housing and having a binding unit 52 at one side of the locker; an adjustment knob 60 configured to control movement of the locker; and an axis case 60 fixed to the front wheel fork 16 axially mounted on the front wheel, having the penetrated frame axis 71, and having a binding unit 72 corresponding to the locker binding unit 52 at one side of the axis case, wherein the binding units 52 and 72 are coupled/uncoupled with/from each other when the locker moves.

[2] The steering wheel rolling bicycle according to claim 1, wherein the locker 50 is ascended/descended within the locker housing, the adjustment knob 60 has an extended knob axis 61 that vertically penetrates the locker housing and the locker, and the locker and the knob axis 61 are coupled to each other by means of screw.

[3] The steering wheel rolling bicycle according to claim 2, wherein a groove 51 that penetrates the knob axis 61 is disposed in an upper portion of the locker 50, and an elastic member 55 for applying exerting an elastic force in a vertical direction is disposed between the groove and the knob groove 61.

[4] The steering wheel rolling bicycle according to any one of claim 1 to claim 3, wherein the adjustment knob 60 is exposed out of the locker housing 40.

[5] The steering wheel rolling bicycle according to claim 1, wherein each of the binding units 52 and 72 has an uneven surface with a zigzag shape.

[6] The steering wheel rot ling bicycle according to claim 5, wherein each of the binding units 52 and 72 is disposed on a circumference of the frame axis 71.