KR20160094522A - a front wheel drive bicycle - Google Patents

a front wheel drive bicycle Download PDF

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Publication number
KR20160094522A
KR20160094522A KR1020150015153A KR20150015153A KR20160094522A KR 20160094522 A KR20160094522 A KR 20160094522A KR 1020150015153 A KR1020150015153 A KR 1020150015153A KR 20150015153 A KR20150015153 A KR 20150015153A KR 20160094522 A KR20160094522 A KR 20160094522A
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KR
South Korea
Prior art keywords
frame
front wheel
sprocket
wheel
curved
Prior art date
Application number
KR1020150015153A
Other languages
Korean (ko)
Inventor
이동진
Original Assignee
이동진
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 이동진 filed Critical 이동진
Priority to KR1020150015153A priority Critical patent/KR20160094522A/en
Publication of KR20160094522A publication Critical patent/KR20160094522A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K15/00—Collapsible or foldable cycles
    • B62K15/006—Collapsible or foldable cycles the frame being foldable
    • B62K15/008—Collapsible or foldable cycles the frame being foldable foldable about 2 or more axes
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/13—Bicycles; Tricycles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Automatic Cycles, And Cycles In General (AREA)

Abstract

The present invention relates to a front-wheel drive bicycle and, more specifically, to a high functional front-wheel drive bicycle driven by connecting a pedal and a sprocket mounted on the front of the front wheel to the front wheel with a chain, and having the small size in which the distance between the front wheel and a rear wheel becomes narrower so as to be proper to a short distance driving connected to public transportation, be simply carried, and be moved by being put in a vehicle trunk and the like. The characteristics of the discussed invention could be achieved by the front-wheel drive bicycle, wherein the front wheel (10A) is mounted and rotated on the lower part of a vertically mounted first frame (11), a driving sprocket (21) is mounted on the front end of a curved second frame (12) protruding toward the front of the upper part of the first frame (11) and is rotated by a pedal (21a) of a crank structure, the driving sprocket (21) is connected to a driven sprocket (22) mounted on a hub shaft by a chain (20) so as to receive the power, a support pipe (13a) combined with the upper part of the first frame (11) is connected to the curved third frame (13) and the rear wheel (10B) is mounted on the lower part thereof, a handlebar (14a) is fixed on the upper part of a fourth frame (14) vertically mounted on the curved second frame (12), and a saddle (15a) is fixed on a fifth frame (15) mounted on the third frame (13).

Description

A front wheel drive bicycle}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front wheel drive bicycle, and more particularly, to a front wheel drive bicycle having a pedal and a sprocket mounted on the front of a front wheel, The present invention relates to a high-performance all-wheel drive bicycle which is suitable for a short-distance travel capable of linking and is portable and can be moved in a trunk or the like of a vehicle.

Generally, a bicycle is constituted such that a crank mechanism composed of a sprocket and a pedal is connected to a rear wheel by a chain, so that power can be transmitted to make a speed, and a front wheel is changed in direction and a stable running is performed.

However, since the rear wheel drive bicycle is long between the front wheel and the rear wheel, the overall length of the vehicle body becomes long, so it is inconvenient to carry and transport, and the bicycle can not be put in the trunk of the vehicle.

Of course, an all-wheel drive bicycle capable of narrowing the interval between the front wheel and the rear wheel has been proposed. However, the front wheel bicycle has a crank mechanism directly mounted on the hub axle of the front wheel so that the driver's leg is too close to the pedal, In addition to not being able to speed up, it is a bike that can not be widely used in public because it is difficult to change the direction of the front wheels while pressing the pedal.

In the prior art, a "front wheel drive bicycle" (prior art 1) and a "bike front wheel drive device" (prior art 2) have been proposed in the public utility model 20-2010-0004413.

In the prior art 1, a chain direction switching gear is provided between a handle gear that generates a driving force and a hub gear that receives the driving force in a front wheel drive bicycle that drives front wheels by the force of an arm, Wheel drive bicycle.

The prior art 2 has a support plate having one end connected to the rotation axis of the front wheel of the bicycle and the other end extended in the radial direction of the front wheel, A first sprocket provided on a rotating shaft of a bicycle front wheel; a chain coupled to an outer circumference of a second sprocket provided on the support plate; A slide unit having a body slidably coupled to the guide bar and one or more one-way gears engaged with the chain on one side of the body; And a drive bar, one end of which is coupled to the body of the slide unit, and the slide unit is slidably reciprocated along the longitudinal direction of the guide rod.

Since the prior arts 1 and 2 are technologies for driving the front wheels while driving the rear wheels while driving the rear wheels while using the handles of the bicycles while driving the rear wheels, the pedals of the crank mechanism mounted on the front of the front wheels are stepped on, And a technique for achieving a compact size in which the distance between the front wheel and the rear wheel is narrowed can not be found.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a crank mechanism that is mounted on a front portion of a front wheel so as to press a pedal of a crank mechanism connected to a front wheel by a chain to perform front wheel drive, Which is easy to carry and carry.

In order to achieve the above object, the present invention is characterized in that a front wheel (10A) is mounted on a lower portion of a vertically mounted first frame (11) and rotated, and a curved A driving sprocket 21 is mounted on the front end of the second frame 12 and is rotated by a pedal 21a of a crank structure. The driving sprocket 21 is connected to a driven sprocket 22 mounted on a hub shaft of the front wheel 10A. A third frame 13 is connected to the support pipe 13a rotatably coupled to the upper portion of the first frame 11 so that the rear wheel 10B A handle 14a is fixed to an upper portion of a fourth frame 14 vertically mounted on the curved second frame 12 and a fifth frame 15 mounted on the third frame 13 is fixed. And the saddle 15a is fixed to the front wheel.

As described above, the present invention as described above is characterized in that the driving sprocket 21 of the crank structure and the pedal are mounted on the front of the front wheel to maintain the effective distance between the saddle 15a and the pedal 21a, Since the driver can comfortably walk while pressing the pedal 21a and at the same time the space between the front wheel 10A and the rear wheel 10B is narrow and the compact size is achieved, it is suitable for a short distance traveling in connection with public transportation, And can be moved in a trunk or the like of a vehicle, so that it is possible to provide a high-performance all-wheel drive bicycle having excellent external competitiveness.

1 is a perspective view illustrating an embodiment of the present invention,
2 is a front view illustrating an embodiment of the present invention;
FIG. 3 is a front view of a part of the present invention,
4 is a front view illustrating a state in which the third frame is rotated in the first frame to shorten the overall length of the bicycle,
5 is a front view illustrating the use state of the present invention,
FIG. 6 is a front view showing a structure in which the third frame according to the present invention is unfolded by the hinge portion to ride the bicycle,
7A and 7B are diagrams showing an operation state of the hinge unit according to the present invention,
8 is a partially enlarged view illustrating another embodiment of the present invention.

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

1 to 8, the present invention is characterized in that a front wheel 10A is mounted on a lower portion of a vertically mounted first frame 11, and the first frame 11 has a branch pipe And the front wheel 10A is mounted therebetween and is rotated around the hub axis.

A curved second frame 12 protruding frontward is integrally fixed to the upper portion of the first frame 11 and a driving sprocket 21 is mounted on the tip of the second frame 12 And is rotated by the pedal 21a coupled with the crank structure.

The drive sprocket 21 is connected to a driven sprocket 22 mounted on a hub shaft of the front wheel 10A by a chain 20 so that power can be transmitted.

A support tube 13a is coupled to the upper portion of the first frame 11 so as to be rotatable and a third frame 13 having a curved shape is connected to the support tube 13a to be integrally fixed.

The rear wheel 10B is mounted on the lower portion of the third frame 13 and the branch tubes branching to both sides are formed on the lower portion of the third frame 13 so that the rear wheel 10B is mounted therebetween, It is a rotating structure.

The fourth frame 14 is vertically mounted on the second frame 12 having a curved shape and the handle 14a is fixed to the upper portion of the fourth frame 14. The handle 14a is fixed to the third frame 13 And a saddle 15a is fixed to the fifth frame 15 mounted on the frame 15a.

The present invention having the above-described structure is characterized in that a crank structure drive sprocket 21 is mounted on the front of the front wheel and a certain distance is maintained between the saddle 15a and the pedal 21a, Since the distance between the front wheel 10A and the rear wheel 10B is narrow and the compact size is achieved, it is suitable for a short distance traveling in connection with public transportation, And can be moved in the trunk of a vehicle, so that a highly functional all-wheel drive bicycle having excellent external competitiveness can be implemented.

4, when the rear wheel 10B is rotated together with the third frame 13 around the support pipe 13a, the drive sprocket 21 protruding forward of the front wheel 10A is rotated in the front wheel 10A 10A and the rear wheel 10B to shorten the overall length of the bicycle, so that it is possible to carry and store the bicycle while carrying the bicycle while carrying the bicycle, and thus the present invention can be utilized in various ways.

In some cases, the third frame 13 is formed with a hinge portion 30 so that the curved third frame 13 can be unfolded. A backrest 15b is formed on the saddle 15a, As shown in FIG.

The hinge portion 30 has flanges 31 formed at the opposite sides of the third frames 13 separated from each other and opened and closed by the coupling of the shaft pin 31a, The clamps 32 engaged with the flanges 31 are engaged through the guide grooves 31b of the other flange 31 to fix the flanges 31 in a closed state and when the flanges 31 are opened by about 90 degrees, The stoppers 33 protruding from the stoppers 31 are in contact with each other to be fixed in a unfolded state.

6, when the flanges 31 of the curved third frame 13 are opened and the third frame 13 is unfolded, the saddle 15a and the back 15b are inclined rearward The distance from the drive sprocket 21 is further increased. Therefore, the driver can operate the vehicle by stepping on the pedal while leaning against the backrest 15b.

Further, as shown in Fig. 8, the bicycle may be advanced by rotating the pedal 21a in the reverse direction.

That is, two idler sprockets 23 are mounted on the bracket 23a coupled to the lower portion of the first frame 11, and the chain 20 surrounds the driven sprocket 22 to form the idler sprockets 23 So that the driven sprocket 22 and the front wheel 10A are rotated in the normal direction to advance the bicycle when the pedal 21a is rotated in the reverse direction.

The above-described configuration of the reverse rotation of the pedal is such that the interval between the saddle 15a and the drive sprocket 21 is narrow and that the pedal 21a is stepped on when the bicycle rises or climbs up the hill, Do.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but many variations and modifications may be made without departing from the scope of the invention. It will be understood by those skilled in the art that various changes may be made and equivalents may be resorted to without departing from the scope of the appended claims.

10A: front wheel 10B: rear wheel
11: first frame 12: second frame
13: third frame 13a: third frame
14: fourth frame 14a: handle
15: fifth frame 15a: saddle
15b: backrest 20: chain
21: Driving sprocket 21a: Pedal
22: Saddle sprocket 23: Idol sprocket
23a: Bracket 30: Hinge part
31a: Axial pin 31: Flange
31b: guide groove 32: clamp
33: Stopper

Claims (3)

A front wheel 10A is mounted on a lower portion of the vertically mounted first frame 11 and rotates. A driving sprocket 21 (not shown) is provided at the tip of a curved second frame 12 protruding forwardly from the upper side of the first frame 11 And the driven sprocket 21 is connected to the driven sprocket 22 mounted on the hub shaft of the front wheel 10A by the chain 20 so as to transmit power, A third curved frame 13 is connected to the support tube 13a rotatably coupled to the upper portion of the first frame 11 and the rear wheel 10B is rotatably mounted on the lower portion thereof, The handle 14a is fixed to an upper portion of the fourth frame 14 vertically mounted on the second frame 12 and the saddle 15a is fixed to the fifth frame 15 mounted on the third frame 13 All-wheel drive bicycle.
The method according to claim 1,
The third frame 13 is formed with a hinge portion 30 so that the curved third frame 13 can be unfolded while the backrest 15b is formed on the saddle 15a, And,
The hinge portion (30)
Flanges 31 are formed at the mutually facing portions of the third frames 13 which are separated from each other and are opened and closed by the coupling of the shaft pin 31a and the clamp 32 rotatably coupled to the one flange 31, When the flanges 31 are opened, the stoppers 33 protruding from the flanges 31 are engaged with each other through the guide grooves 31b of the other flange 31 to fix the flanges 31 in a closed state. Wherein the braking device is configured such that the braking device can be fixed in a state in which the braking device is in contact with the vehicle.
The method according to claim 1,
Two idler sprockets 23 are mounted on the bracket 23a coupled to the lower portion of the first frame 11 and the chain 20 is driven halfway around the idler sprocket 22 through the idler sprockets 23 Wherein the driven sprocket (22) and the front wheel (10A) are rotated in a forward direction when the pedal (21a) is connected to the sprocket (21) to rotate the bicycle forward.
KR1020150015153A 2015-01-30 2015-01-30 a front wheel drive bicycle KR20160094522A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150015153A KR20160094522A (en) 2015-01-30 2015-01-30 a front wheel drive bicycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150015153A KR20160094522A (en) 2015-01-30 2015-01-30 a front wheel drive bicycle

Publications (1)

Publication Number Publication Date
KR20160094522A true KR20160094522A (en) 2016-08-10

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ID=56713163

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150015153A KR20160094522A (en) 2015-01-30 2015-01-30 a front wheel drive bicycle

Country Status (1)

Country Link
KR (1) KR20160094522A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109878625A (en) * 2019-04-12 2019-06-14 四川大学 A kind of front-rear-wheel double-driven bicycle driving separation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109878625A (en) * 2019-04-12 2019-06-14 四川大学 A kind of front-rear-wheel double-driven bicycle driving separation
CN109878625B (en) * 2019-04-12 2023-10-20 四川大学 Front-rear wheel dual-drive bicycle capable of being driven and separated

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E601 Decision to refuse application