CN106184554B

CN106184554B - Folding bicycle and folding method

Info

Publication number: CN106184554B
Application number: CN201610664439.3A
Authority: CN
Inventors: 刘文兵; 张雄杰
Original assignee: Kunshan Yg New Material Co ltd
Current assignee: Kunshan Yg New Material Co ltd
Priority date: 2016-08-15
Filing date: 2016-08-15
Publication date: 2023-02-24
Anticipated expiration: 2036-08-15
Also published as: CN106184554A

Abstract

The invention discloses a folding bicycle, the body structure part of the folding bicycle comprises: the bicycle comprises a saddle, a seat post, a direction post, a front post, a rear post, a flywheel mechanism, two folding parts and a connecting and fixing mechanism, wherein the connecting and fixing mechanism comprises a first connecting piece and a second connecting piece; the two folded portions include: a handlebar fold and a front wheel fold. The folding of the invention is completely different from the parallel or overlapping of the front wheel and the rear wheel in the prior art, and the folded bicycle has small volume. The invention also discloses a folding method of the folding bicycle.

Description

Folding bicycle and folding method

Technical Field

The invention relates to the technical field of bicycles, in particular to a folding bicycle and a folding method.

Background

The existing folding bicycle mainly has two folding modes, one is a transverse folding mode that the front wheel is folded from the side and overlapped to the rear wheel, and the other is a transverse folding mode that the front wheel is arranged to be capable of being vertically folded to the space of the rear wheel. The existing folding bicycle has the following defects: 1. the volume is large; 2. the carrying is inconvenient, and the user needs to carry the portable walking device; 3. the placement is not stable. For example, CN100577506 discloses a folding bicycle having a translation mechanism for translating a front wheel in a direction perpendicular to the plane of the bicycle, the frame comprising a first slot with a shape complementary to the shape of the handlebars and a handlebar hinge device for placing the handlebars in this slot when folded. CN101549733 discloses a folding method for a folding bicycle, which is very complex and has high operation requirements. CN102481964 discloses a folding bicycle, the body structure part of which comprises: preceding rim plate, saddle, three folding mechanism portion, these three folding mechanism portion include: a handle folding mechanism portion, a front wheel folding mechanism portion and a rear wheel folding mechanism portion, wherein a folding rotation shaft of the rear wheel folding mechanism portion is positioned at the rear upper part of the pedal crank shaft and has a predetermined inclination angle relative to an axis perpendicular to the circular surface of the rear wheel, so that the rear wheel can freely rotate on a track inclined relative to the circular surface of the rear wheel, and the outer periphery of the rear wheel is close to the lower part of the pedal crank shaft in a state that the rear wheel is kept away from the seat post of the pressed saddle and the obstruction of the seat post holding portion from the inclined direction; when the three folding mechanism portions are caused to function to fold, the front and rear wheels are made to be substantially coincident with each other, and the vehicle body constituent portions extending from the square region circumscribing the outer peripheries of the front and rear wheels are concentrated only on one side of the square region.

Therefore, there is a need for a new folding method and folding bicycle that is small, portable, and stable in placement.

Disclosure of Invention

A first object of the present invention is to provide a folding bicycle.

The second objective of the invention is to provide a folding method of the folding bicycle.

To achieve the first object, the present invention adopts the following:

a folding bicycle, a body structure portion of which comprises: a saddle, a seat post, a direction post, a front post, a back post, a flywheel mechanism, two folding parts and a connecting and fixing mechanism,

the connecting and fixing mechanism comprises a first connecting piece and a second connecting piece, the first connecting piece is arranged on the side face of the front wheel, the second connecting piece is arranged on the part, exceeding the flywheel mechanism, of the lower portion of the seat post, and the first connecting piece and the second connecting piece can be matched and fixedly connected in structure;

the two folds comprise:

a handlebar folding portion provided above a crossing portion of the steering column and the front bar member, for folding the handlebar so that the handlebar is overlapped on a side of the front wheel; and

the front wheel folding part is arranged on the front rod piece, divides the front rod piece into a front cross rod and a rear cross rod, is used for folding the front wheel so as to enable the front wheel to be overlapped below the seat post, and is fixed by the first connecting piece and the second connecting piece.

The folding bicycle of the invention is folded by the handlebar folding part and the front wheel folding part, the front wheel and the rear wheel are in a vertical relation, which is completely different from the parallel of the front wheel and the rear wheel or the overlapping of the front wheel and the rear wheel in the prior art, and the folded bicycle has small volume.

Herein, the foldable bicycle includes, but is not limited to, a pedal bicycle, and an electric bicycle. In the case of an electric bicycle, the electric components of the electric bicycle can be disposed in the cross member, and those skilled in the art can arrange the components as required according to the techniques disclosed in the prior art, which will not be described in detail herein.

Further, the folding bicycle still includes: the handle is arranged above the front cross bar. After the handle is arranged, the folded bicycle can be conveniently lifted.

Further, the folding bicycle still includes: the auxiliary wheel mechanism is arranged on the side of the rear wheel, is used for supporting the lower part of the rear wheel after the bicycle is folded and can roll on the ground; the auxiliary wheel mechanism comprises an auxiliary wheel frame and an auxiliary wheel, and the auxiliary wheel is arranged in the auxiliary wheel frame.

Furthermore, the auxiliary wheel mechanism comprises an auxiliary wheel frame, an auxiliary wheel, a connecting spring and a fixing pin, wherein the auxiliary wheel frame comprises two wheel frames, and the two wheel frames are respectively fixed on two sides of the rear wheel along the axis of the rear wheel through the connecting spring and the fixing pin. The bicycle provided with the auxiliary wheel mechanism can be vertically placed on the ground through the auxiliary wheel after being folded, and can slide on the ground without being lifted when the bicycle needs to be moved, so that the structure is particularly suitable for occasions needing to climb stairs.

Further, the height of the auxiliary wheel frame is 170-200mm. This height is set to match the existing stair step height.

Further, the folding bicycle still includes: and the rear seat is arranged above the rear wheel and is used for providing support together with the auxiliary wheel mechanism when the bicycle is folded and erected. And can be used for sitting people or placing articles.

The structures of the first connecting piece and the second connecting piece are not limited, and the first connecting piece and the second connecting piece can be matched and fixed. Preferably, the first connecting piece is provided with a rear wall and two side walls, the rear wall is provided with a first hole for fixing with the front wheel, and the side walls are provided with a second hole for fixing with the second connecting piece;

the second connecting piece is provided with a hoop and a hoop switch, rods with hook parts are arranged on two sides of the hoop, spring fixing rods extend in front of the rods, and tensioning springs are arranged between the spring fixing rods;

when the first connecting piece and the second connecting piece are fixedly connected, the hook part is positioned in the second hole.

To achieve the second object, the present invention employs the following:

a folding method of a folding bicycle, comprising the steps of:

pressing down the saddle along the direction rod;

the handlebar is rotated and overlapped on the side of the front wheel through the handlebar folding part;

the front wheel is rotationally overlapped below the seat post through the front wheel folding part;

fixing a first connecting piece arranged on the side surface of the front wheel and a second connecting piece arranged on the lower part of the seat post and exceeding the flywheel mechanism to finish folding;

the handlebar folding part is arranged above the intersection of the steering column and the front rod piece;

the front wheel folding part is arranged on the front rod piece and divides the front rod piece into a front cross rod and a rear cross rod, and the distance between the rotating point of the front wheel folding part and the first connecting piece is equal to the distance between the rotating point of the front wheel folding part and the second connecting piece.

The invention has the following advantages:

1. the folding bicycle of the invention is folded by the folding part of the handlebar and the folding part of the front wheel, the front wheel and the rear wheel are in a vertical relation, which is completely different from the prior art that the front wheel and the rear wheel are parallel or the front wheel and the rear wheel are overlapped, the folded bicycle has small volume and simple and labor-saving folding process.

2. The folding method of the folding bicycle is not limited by the size of the wheel, can be suitable for bicycles with any size, and has wider application range.

3. The folding bicycle can be conveniently pulled by people through the auxiliary wheel mechanism, is conveniently moved to a high-rise residence, and is labor-saving, time-saving and space-saving.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Fig. 1 is a side view of a folding bicycle according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of the foldable bicycle of the present invention after the first folding step.

Fig. 3 is a second-step folded structural schematic view of the foldable bicycle of the present invention.

Fig. 4 is a schematic structural view of the foldable bicycle of the present invention after the third step of folding.

Fig. 5 is a schematic structural view of the foldable bicycle of the present invention after the fourth folding step.

Fig. 6 is a schematic structural view of the foldable bicycle of the present invention after the fifth step is folded.

Fig. 7 is a schematic structural view of the foldable bicycle of the present invention after folding is completed.

Fig. 8 is a structural view of the first connecting member.

Fig. 9 is a schematic structural view of the second connector.

Fig. 10 is a perspective schematic view of the auxiliary wheel mechanism.

Detailed Description

In order to more clearly illustrate the present invention, the present invention is further described below in conjunction with preferred embodiments. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.

Examples

As shown in fig. 1, it is a schematic structural view of the foldable bicycle of the present invention. This folding bicycle includes: handlebar 1, brake 2 located in front of handlebar 1, steering column 22 located below the handlebar, front wheel 4, saddle 10, seat post 11 located below the saddle, front rods (including front cross rod 9 and rear cross rod 8) located between seat post 11 and steering column 22, rear wheel 17, rear rods (including first rear rod 30 and second rear rod 31) for fixing the rear wheel, pedals 13, flywheel mechanism 14, handlebar folding portion 3, front wheel folding portion 7, a connection fixing mechanism and an auxiliary wheel mechanism. When the bicycle is in a normal state, the seat 10 is fixed in height by the seat post engaging piece 12. The handlebar folded portion 3 is disposed above the intersection of the steering column 22 and the front link. A front wheel fold 7 is provided between the front crossbar 9 and the rear crossbar 8. The front cross bar 9 is provided with a third connecting piece 23, the rear cross bar 8 is provided with a fourth connecting piece 24, and when the bicycle is in a normal state, the front wheel folding part 7 is fixedly connected with the fourth connecting piece 24 through the third connecting piece 23.

One connection fixing mechanism comprises a first connecting piece 5 and a second connecting piece 15, wherein the first connecting piece 5 is arranged at the side of the front wheel 4, and the second connecting piece 15 is arranged at the lower part of the seat post 11 beyond the flywheel mechanism 14 (generally near the tail end of the seat post 11); as shown in fig. 8, the first connecting member 15 has a rear wall 32 and two side walls 33, the rear wall 21 is provided with a first hole 34 for fixing with the front wheel 4, the side walls 33 are provided with a second hole 35 for fixing with the second connecting member 15; as shown in fig. 9, the second connecting member 15 has a yoke 25 and a yoke switch 26, a rod having a hook 28 is provided on both sides of the yoke, a spring fixing rod 29 is extended in front of the rod, and a tension spring 27 is provided between the spring fixing rods 29; when the first connecting member 5 and the second connecting member 15 are fixedly connected, the hook 28 is located in the second hole 35.

The auxiliary wheel mechanism is disposed at a side of the rear wheel, and is used for supporting below the rear wheel and rolling on the ground after the bicycle is folded, as shown in fig. 10, the auxiliary wheel mechanism includes an auxiliary wheel frame 19, an auxiliary wheel 20, a connecting spring 18 and a fixing pin 21, the auxiliary wheel frame 19 includes two wheel frames, and the two wheel frames are respectively fixed at two sides of the rear wheel along the axis of the rear wheel through the connecting spring 18 and the fixing pin 21. The transverse dimensions of the auxiliary wheel carrier 19 and the auxiliary wheel 20 need not be limited, it being understood that the rear wheel and the freewheel mechanism need only be sufficient to be able to be placed therein.

In addition, a handle 6 is provided above the front rail 9.

A rear seat 16 is provided above the rear wheel 17. The rear seat 16 and the auxiliary wheel mechanism cooperate to provide support when the bicycle is in a folded, upright position, which makes the bicycle more stable.

It is understood that the pedals, the rear rod, the freewheel mechanism, the third and fourth connecting members, the seat post fastener, etc. of the body structure of the foldable bicycle can all adopt the structural design disclosed in the prior art, and will not be described in detail herein.

Fig. 2 to 7 are schematic structural views illustrating a folding process of the foldable bicycle of the present invention. The folding steps of the folding bicycle comprise:

1) Loosening the seat post fastener 12 and pressing down the seat 10;

2) Turning the handlebar 1 counterclockwise substantially 90 degrees;

3) The front wheel 4 drives the handlebar 1 to rotate clockwise by 90 degrees by using the front wheel folding part 3;

4) The handlebar 1 is folded to the side of the front wheel 4 by the front wheel folding part 3 and is put down towards the front wheel 4;

5) The third connecting piece 23 and the fourth connecting piece 24 are opened, the front cross rod 9 drives the front wheel 4, the handlebar 1 and the like to rotate 90 degrees clockwise in the vertical direction by utilizing the front wheel folding part 7, and the hook part 28 of the second connecting piece 15 is contacted and fixed by the second hole 35 of the first connecting piece 5;

6) The whole bicycle is rotated counterclockwise in the vertical direction until the auxiliary wheel 20 part on the auxiliary wheel frame 19 and the rear seat 16 touch the ground, and the folding is completed.

The folding bicycle of the invention is folded by the folding part of the handlebar and the folding part of the front wheel, the front wheel and the rear wheel are in a vertical relationship, the folded bicycle has small volume, the folding process is simple and labor-saving, and the bicycle can be conveniently pulled by depending on the handle and the auxiliary wheel mechanism.

It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.

Claims

1. A foldable bicycle, characterized in that a body structure portion of the foldable bicycle comprises: the bicycle comprises a saddle, a seat post, a direction rod, a front rod piece, a rear rod piece, a flywheel mechanism, two folding parts and a connecting and fixing mechanism, wherein the connecting and fixing mechanism comprises a first connecting piece and a second connecting piece, the first connecting piece is arranged on the side surface of a front wheel, the second connecting piece is arranged on the part, exceeding the flywheel mechanism, of the lower part of the seat post, and the first connecting piece and the second connecting piece are structurally matched and fixedly connected;

the two folds comprise:

a handlebar folding portion disposed above a crossing portion of the steering column and the front bar member for folding the handlebar so that the handlebar is overlapped on a side of the front wheel; the front wheel folding part is arranged on the front rod piece, divides the front rod piece into a front transverse rod and a rear transverse rod, is used for folding the front wheel so as to enable the front wheel to be overlapped below the seat post, and is fixed with the first connecting piece and the second connecting piece;

the first connecting piece is provided with a rear wall and two side walls, the rear wall is provided with a first hole used for being fixed with the front wheel, and the side walls are provided with second holes used for being fixed with the second connecting piece; the second connecting piece is provided with a hoop and a hoop switch, rods with hook parts are arranged on two sides of the hoop, spring fixing rods extend in front of the rods, and tensioning springs are arranged between the spring fixing rods; when the first connecting piece is fixedly connected with the second connecting piece, the hook part is positioned in the second hole;

the folding bicycle further comprises: the auxiliary wheel mechanism is arranged on the side of the rear wheel, is used for supporting the lower part of the rear wheel after the bicycle is folded and can roll on the ground; the auxiliary wheel mechanism comprises an auxiliary wheel frame and an auxiliary wheel, and the auxiliary wheel is arranged in the auxiliary wheel frame.

2. The folding bicycle of claim 1, further comprising: the handle is arranged above the front cross bar.

3. The folding bicycle of claim 1, wherein the auxiliary wheel mechanism comprises an auxiliary wheel frame, an auxiliary wheel, a connecting spring and a fixing pin, the auxiliary wheel frame comprises two wheel frames, and the two wheel frames are respectively fixed on two sides of the rear wheel along the axle center of the rear wheel through the connecting spring and the fixing pin.

4. A foldable bicycle according to claim 3, characterised in that the height of the auxiliary wheel frame is 170-200mm.

5. The folding bicycle of claim 1, further comprising: the backseat is arranged above the rear wheel and is used for providing support together with the auxiliary wheel mechanism when the bicycle is folded and erected.

6. A method of folding a foldable bicycle according to claim 1, comprising the steps of: pressing down the saddle;

rotating and overlapping the handlebar on the side of the front wheel through the handlebar folding part;

and fixing a first connecting piece arranged on the side surface of the front wheel and a second connecting piece arranged on the part of the lower part of the seat post exceeding the flywheel mechanism to finish folding.