KR20150110430A - Shaft for power transmission apparatus of chainless bicycle, power transmission apparatus and chainless bicycle - Google Patents

Shaft for power transmission apparatus of chainless bicycle, power transmission apparatus and chainless bicycle Download PDF

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Publication number
KR20150110430A
KR20150110430A KR1020150040985A KR20150040985A KR20150110430A KR 20150110430 A KR20150110430 A KR 20150110430A KR 1020150040985 A KR1020150040985 A KR 1020150040985A KR 20150040985 A KR20150040985 A KR 20150040985A KR 20150110430 A KR20150110430 A KR 20150110430A
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KR
South Korea
Prior art keywords
power transmission
shaft
bicycle
drive shaft
transmission device
Prior art date
Application number
KR1020150040985A
Other languages
Korean (ko)
Other versions
KR101715164B1 (en
Inventor
윤성호
구성득
Original Assignee
금오공과대학교 산학협력단
구성득
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Application filed by 금오공과대학교 산학협력단, 구성득 filed Critical 금오공과대학교 산학협력단
Publication of KR20150110430A publication Critical patent/KR20150110430A/en
Application granted granted Critical
Publication of KR101715164B1 publication Critical patent/KR101715164B1/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
    • B62M17/00—Transmissions characterised by use of rotary shaft, e.g. cardan shaft
    • 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
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes

Abstract

The present invention relates to a shaft for a power transmission device for a chainless bicycle, and a chainless bicycle having the same. More specifically, the present invention easily transmits power when the bicycle switches a direction in a narrow space or a curved section.

Description

TECHNICAL FIELD [0001] The present invention relates to a shaft for a power transmission device of a bicycle, a power transmission device, and a motorless bicycle having the same. BACKGROUND OF THE INVENTION [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shaft for a power transmission device, a power transmission device, and a power source unit having the power transmission device of the present invention. More particularly, the present invention relates to a power transmission device, The present invention relates to a shaft for a power transmission device, a power transmission device, and an integrated bicycle having the same.

Generally, bicycle refers to a vehicle that moves by turning the wheels by stepping on the pedals with two legs.

However, the conventional bicycle has a problem that the chain is peeled off or oil is painted on the chain, so that the body part, the pants are dirty, and the skirt is curled, thereby causing trouble and safety accident.

Korean Utility Model Registration Utility Model No. 20-0306417 discloses a shaft drive of a body recognition bicycle.

However, such a bicycle has a problem that it is not easy to transmit power when the bicycle is turned in a narrow space, a curved section, or the like.

Korean Utility Model Registration No. 20-0306417 (July 12, 2003)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a power transmission device for a bicycle which is capable of easily transmitting power even in a narrow space, Shaft, a power transmission device, and a motorcycle equipped with the same.

The problems to be solved by the present invention are not limited to those mentioned above, and other solutions not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above-mentioned object, the present invention includes a driving shaft which is provided on a single-body bicycle having front and rear wheels and a pedal, and both ends of the front and rear wheels and the pedal are engaged with the rear wheel and the pedal Wherein the drive shaft is made flexible in such a manner that a winding member made of a metal is wound in a spiral shape. The shaft for a power transmission device according to any one of claims 1 to 3,

The apparatus further includes a casing coupled to the outside of the drive shaft.

Further, the present invention is further characterized by a reinforcing bar provided inside the drive shaft.

The apparatus may further include a bending prevention cover detachably coupled to an outer side of the casing or the driving shaft to prevent the driving shaft from being bent.

The bending prevention cover according to the present invention is characterized in that both ends of the bending prevention cover are open and one side is opened and a detachment hole is detachably attached to the outside of the driving shaft, and a single or a plurality of magnets are provided inside.

There is provided a power transmission apparatus for a bicycle comprising a shaft for a power transmission device of a bicycle according to the present invention.

There is provided a bicycle comprising a power transmitting device of a bicycle according to the present invention.

According to the present invention, there is an effect that power transmission can be easily performed even when a direction is changed in a narrow space, a curved section, or the like.

In addition, when the vehicle is running straight, the drive shaft can be prevented from bending and smooth running can be achieved.

The effects of the present invention are not limited to those mentioned above, and other solutions not mentioned may be clearly understood by those skilled in the art from the following description.

FIG. 1 is a perspective view showing a conventional bicycle with a shaft for a power transmission apparatus of a bicycle according to the present invention.
Fig. 2 and Fig. 3 are longitudinal sectional views showing a shaft for a power transmitting apparatus of a bicycle according to the present invention.
4 is an exploded view of a bending protection cover in a shaft for a power transmission apparatus of a bicycle according to the present invention, in accordance with the present invention.
5 and 6 are a perspective view and a side view showing a bending prevention cover in a shaft for a power transmission apparatus of a bicycle according to the present invention, according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 6, a shaft 1 for a power transmitting device of a bicycle according to the present invention is provided on a bicycle 100 having a front and a rear wheels 110 and 120 and a pedal 130, The power transmitting device 200 includes both ends and is connected to the rear wheel 120 and the pedal 130. The power transmitting device 200 includes a pedal 130, And a drive shaft (10) coupled to the drive shaft (10). The drive shaft (10) is made flexible.

1, the drive shaft 10 is coupled to the rear wheel 120 and the pedal 130 by gears or the like. The power transmission device 200 may be a shaft drive Form.

Since the power transmission device 200 is already known and used, a detailed description thereof will be omitted.

The drive shaft 10 may be formed in a spiral shape so that it can freely bend upwardly, downwardly, backwardly, laterally, rightwardly, etc. according to the change of the direction of the unidirectional bicycle 100.

For example, the drive shaft 10 is made flexible while the winding member 11 including a wire or a steel plate having a constant width is wound in a spiral shape in both end directions.

The driving shaft (10) can be formed into a plurality of layers by winding a plurality of the winding members (11).

The shaft 1 for the power transmission device of the bicycle may further include a casing 20 coupled to the outside of the drive shaft 10 as shown in FIG.

Most preferably, the casing 20 is formed of a rubber hose of a general shape having both ends.

Alternatively, the shaft 1 for the power transmission device of the bicycle may further include a reinforcing bar 30 provided on the inner side of the driving shaft 10 as shown in FIG.

The reinforcing bar 30 is preferably made of silicone or rubber, and the driving shaft 10 can be wound in a spiral shape to the outside.

The shaft 1 for the power transmission device of the motorcycle is detachably coupled to the outside of the casing 20 or the driving shaft 10 to prevent the driving shaft 10 from being bent And may further include a bending prevention cover (40).

5, both ends of the bending prevention cover 40 are opened and a side of the bending prevention cover 40 is opened to form a removable attachment 41 which is detachably attached to the casing 20 or the drive shaft 10.

The bending prevention cover 40 may be provided with a single or a plurality of magnets 50 inside as shown in FIG. 6 and may be stably coupled to the driving shaft 10 by the magnet 50 On the other hand, after the separation, the bicycle 100 can be attached and stored.

Therefore, the shaft 1 for the power transmission device of the uni-directional bicycle can be provided to the uni-directional bicycle 100 so that the power transmission can be easily performed even when the direction is changed in a narrow space, a curved section, In addition, it is possible to prevent the drive shaft 10 from bending at the time of a straight running or the like, so that a smooth running can be performed.

The present invention is not limited to the above-described embodiment, but may be applied to other types of bicycles, such as a bicycle, It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

1: Shaft for motive power transmission unit
10: drive shaft 11:
20: casing 30: reinforcing bar
40: bending prevention cover 41:
50: Magnet 100: Bicycle without body
110: current 120: rear wheel
130: Pedal 200: Power transmission device

Claims (7)

A shaft for a power transmission device, comprising: a drive shaft provided on a single-body bicycle having front and rear wheels and a pedal, both ends of which are engaged with the rear wheel and the pedal so as to be rotated in association with rotation of the pedal,
The drive shaft
Wherein a winding member made of metal is wound in a spiral shape so as to be flexible.
The method according to claim 1,
And a casing coupled to an outer side of the drive shaft.
The method according to claim 1,
And a reinforcing bar provided on the inner side of the drive shaft.

4. The method according to any one of claims 1 to 3,
Further comprising a bending prevention cover detachably coupled to an outer side of the casing or the drive shaft to prevent the drive shaft from being bent.
5. The method of claim 4,
The bending-
Wherein one end of the shaft is open and one end of the shaft is open and the other end is detachably attached to the outer side of the drive shaft, and a single or a plurality of magnets are provided inside the shaft.
A power transmission device of a bicycle comprising a shaft for a power transmission device of a bicycle according to any one of claims 1 to 3.
A bicycle characterized by comprising the power transmission device of the bicycle according to claim 6.
KR1020150040985A 2014-03-24 2015-03-24 Shaft for power transmission apparatus of chainless bicycle, power transmission apparatus and chainless bicycle KR101715164B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020140034249 2014-03-24
KR20140034249 2014-03-24

Publications (2)

Publication Number Publication Date
KR20150110430A true KR20150110430A (en) 2015-10-02
KR101715164B1 KR101715164B1 (en) 2017-03-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150040985A KR101715164B1 (en) 2014-03-24 2015-03-24 Shaft for power transmission apparatus of chainless bicycle, power transmission apparatus and chainless bicycle

Country Status (1)

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KR (1) KR101715164B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001349319A (en) * 2000-06-06 2001-12-21 Shunji Kuramoto Flexible shaft structure, transport device and washing device using it
KR200306417Y1 (en) 1997-05-29 2003-07-12 챈-칭 창 Chainless transmission mechanism for a bicycle
JP2004058687A (en) * 2002-07-24 2004-02-26 Zinshi Ryu Assembly type non-chain drive device for bicycle
KR20070109661A (en) * 2006-05-12 2007-11-15 주식회사 한국티엔비 Power transmission apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200306417Y1 (en) 1997-05-29 2003-07-12 챈-칭 창 Chainless transmission mechanism for a bicycle
JP2001349319A (en) * 2000-06-06 2001-12-21 Shunji Kuramoto Flexible shaft structure, transport device and washing device using it
JP2004058687A (en) * 2002-07-24 2004-02-26 Zinshi Ryu Assembly type non-chain drive device for bicycle
KR20070109661A (en) * 2006-05-12 2007-11-15 주식회사 한국티엔비 Power transmission apparatus

Also Published As

Publication number Publication date
KR101715164B1 (en) 2017-03-10

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