WO2017052062A1

WO2017052062A1 - Bicycle

Info

Publication number: WO2017052062A1
Application number: PCT/KR2016/008105
Authority: WO
Inventors: 백상기
Original assignee: 백상기
Priority date: 2015-09-22
Filing date: 2016-07-25
Publication date: 2017-03-30

Abstract

One embodiment of the present invention can provide a bicycle comprising: a first frame comprising a sheet; a first axle frame which supports a front axle connected to a front wheel and is rotatably connected to one end of the first frame; a second axle frame which supports a rear axle connected to a rear wheel; a first hinge part which is interposed between the first frame and the second axle frame and allows the second axle frame to be rotatable; a pedal frame comprising a pedal part; and a second hinge part which is interposed between the pedal frame and the first frame and allows the pedal frame to be rotatable.

Description

bicycle

Embodiments of the present invention relate to a bicycle.

In general, bicycles can be classified into fixed frame bicycles and folding bicycles, and fixed frame bicycles have advantages in that their structure is simple and robust, and the battery pack can be easily installed.

However, the conventional fixed frame bicycle has a limit inconvenient storage and movement.

On the other hand, in the case of a folding bicycle, it is convenient to store and move because it can reduce the volume and size of the bicycle, but it is difficult to design a shock absorber because the bicycle must be folded, and the shock absorber installed to absorb the shock to the user There was not enough limit. In addition, when the folding bicycle is configured as an electric bicycle, it is not easy to secure a space for fixing the battery pack, and in some cases, a high capacity battery pack cannot be employed at all.

Embodiments of the present invention provide a bicycle that can increase the freedom of installation of the battery pack. In addition, it is to provide a bicycle that is easy to store, carry, and carry by making the size of the bicycle folded smaller.

In addition, embodiments of the present invention is to provide a bicycle that can further improve the buffer effect of the shock absorber.

An embodiment of the present invention, the first frame including a seat, and supports the front axle connected to the front wheel, the first axle frame rotatably connected to one end of the first frame, and the rear axle connected to the rear wheel A pedal frame including a second axle frame, a first hinge part interposed between the first frame and the second axle frame, and allowing the second axle frame to be rotatable, a pedal part, and the pedal frame; It is possible to provide a bicycle, which is interposed between the first frame and includes a second hinge portion that allows the pedal frame to be rotatable.

In some embodiments, a second frame positioned between the rear axle and the pedal part, and a third hinge part interposed between the second frame and the pedal part and allowing the second frame to be rotatable. have.

In some embodiments, the second hinge frame may further include a fourth hinge part interposed between the second axle frame and the rear axle to allow the second axle frame to be rotatable.

In some embodiments, the electronic device may further include a fixing part interposed between the pedal frame and the first frame and configured to selectively fix the pedal frame to the first frame.

In some embodiments, the device may further include a shock absorber interposed between the first frame and the pedal frame.

In some embodiments, a buffer frame interposed between the first frame and the second axle frame, and a fifth hinge portion interposed between the buffer frame and the first frame to enable the buffer frame to be rotatable. And a buffer device interposed between the first frame and the buffer frame, wherein the first hinge portion is interposed between the buffer frame and the second axle frame.

In some embodiments, the first frame comprises a 1-1 frame and a 1-2 frame separated from each other in the longitudinal direction of the bicycle, and interposed between the 1-1 frame and the 1-2 frame. And, the front wheel and the rear wheel may further include a bending hinge portion provided to bend the first frame in the overlapping direction.

In some embodiments, the apparatus may further include a driving member provided to provide a driving force to at least one of the front wheel and the rear wheel, and a battery pack electrically connected to the driving member and detachable to the first frame. .

The first frame may include a first top frame and a first bottom frame spaced apart from each other, and the battery pack may be detachably attached to the first top frame or the first bottom frame.

The first top frame or the first bottom frame may have a fastening groove provided to receive the battery pack.

A first fastening member and a second fastening member interposed between both ends of the battery pack and the first top frame or the first bottom frame may be further included.

Other aspects, features, and advantages other than those described above will become apparent from the following drawings, claims, and detailed description of the invention.

The bicycle according to the embodiments of the present invention can be easily used as a folding bicycle and can be easily stored, transported, and carried by making the size of the bicycle folded smaller.

Since a sufficient space for mounting the battery pack can be secured, a large capacity battery pack can be used, and the freedom of use and design of the battery pack can be increased.

1 is a side view schematically showing a bicycle according to an embodiment.

FIG. 2 is a side view illustrating a state in which the bicycle illustrated in FIG. 1 is folded.

3 is a side view schematically showing a bicycle according to another embodiment.

4 is a side view schematically showing a bicycle according to another embodiment.

5A and 5B are side views schematically illustrating a bicycle according to another exemplary embodiment.

6A and 6B are partial side views illustrating the shock absorbing mechanism of the comparative example and the example, respectively.

7 is a side view schematically showing a bicycle according to another embodiment.

8 is a side view illustrating a state in which the bicycle illustrated in FIG. 7 is folded.

9A to 9D are side views schematically illustrating electric powered bicycles according to different embodiments.

10A to 10C are diagrams illustrating a method of mounting a battery pack according to different embodiments.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. Effects and features of the present invention, and methods of achieving them will be apparent with reference to the embodiments described below in detail together with the drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various forms.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the same or corresponding components will be denoted by the same reference numerals, and redundant description thereof will be omitted. .

In the following embodiments, the terms first, second, and the like are used for the purpose of distinguishing one component from other components rather than a restrictive meaning.

In the following examples, the singular forms "a", "an" and "the" include plural forms unless the context clearly indicates otherwise.

In the following examples, the terms including or having have meant that there is a feature or component described in the specification and does not preclude the possibility of adding one or more other features or components.

In the drawings, components may be exaggerated or reduced in size for convenience of description. For example, the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of description, and thus the present invention is not necessarily limited to the illustrated.

In the case where an embodiment may be implemented differently, a specific process order may be performed differently from the described order. For example, two processes described in succession may be performed substantially simultaneously or in the reverse order of the described order.

In the following embodiments, when a film, a region, a component, or the like is connected, not only the film, the region, and the components are directly connected, but also other films, regions, and components are interposed between the film, the region, and the components. And indirectly connected.

In the present specification, the same reference numerals are used for the same components.

1 is a side view schematically showing a bicycle according to an embodiment.

Referring to FIG. 1, a bicycle according to an embodiment of the present invention may include a first frame 11, a second frame 12, a first axle frame 21, a second axle frame 22, and a bicycle. , A pedal frame 41 may be included.

The first frame 11 forms a body of the bicycle, and the first upper frame 111, the first lower frame 112, the cylindrical frame 113, and the seat frame 114 are spaced apart from each other. It may include.

The first upper frame 111 and the first lower frame 112 extend in the longitudinal direction of the bicycle, and extend in the same direction to converge with each other in FIG. 1, but is not necessarily limited thereto. , May extend parallel to each other.

As such, since the first frame 11 includes the first upper frame 111 and the first lower frame 112 spaced apart from each other, a more robust and stable frame structure can be achieved. In addition, since the battery pack can be positioned between the upper part of the first upper frame 111 or the first upper frame 111 and the first lower frame 112 when used as an electric drive bike to be described later, accommodating the battery pack. Increase design freedom of space.

The cylindrical frame 113 may be coupled to one end of the first upper frame 111 and the first lower frame 112 toward the front. The cylindrical frame 113 may be coupled to the first axle frame 21 so as to be rotatable.

The seat frame 114 may be coupled to the other end toward the rear of the first upper frame 111 and the first lower frame 112. However, the present invention is not limited thereto, and the seat frame 114 may be coupled to a portion of the first upper frame 111 and the first lower frame 112. The seat 121 may be coupled to the seat frame 114.

The first axle frame 21 may rotatably support the front axle 31 connected to the front wheel 311. A steering handle bar 23 may be coupled to an upper end of the first axle frame 21.

The second axle frame 22 may rotatably support the rear axle 32 connected to the rear wheel 321. The second axle frame 22 may be connected to the first frame 11, but may not necessarily be directly connected, but may be connected to the first frame 11 through another member.

A first hinge portion 81 may be interposed between the first frame 11 and the second axle frame 22. According to an embodiment, the first hinge portion 81 may be interposed therebetween. The second axle frame 22 may be rotatably coupled to the first frame 11.

Optionally, one end of the second axle frame 22 is rotatably coupled to the seat frame 114 via the first hinge portion 81, and the other end of the second axle frame 22 is the fourth hinge. It can be rotatably coupled to the rear axle 32 via the branch 84. Accordingly, the second axle frame 22 can be smoothly rotated when the rear wheel 321 is folded in the direction of the front wheel 311 as described below.

The pedal frame 41 is positioned below the first frame 11. The pedal frame 41 may include a pedal unit 40. According to an embodiment, the pedal unit 40 may be coupled to one end of the pedal frame 41. The pedal unit 40 may be fixedly coupled to the pedal frame 41, but is not necessarily limited thereto, and a separate hinge unit may be interposed to allow the pedal unit 40 and the pedal frame 41 to rotate together. It may be provided. The pedal unit 40 is schematically illustrated in the drawing, and the pedal unit 40 may be a concept including a pedal frame, a pedal structure including a gear unit, a chain, a bearing, and the like.

A second hinge portion 82 may be interposed between the pedal frame 41 and the first frame 11. According to an embodiment of the present invention, the pedals are disposed through the second hinge portion 82. The frame 41 may be rotatably coupled to the first frame 11.

Optionally, one end of the pedal frame 41 may be rotatably coupled to the first lower frame 112 via the second hinge portion 82.

Optionally, a second frame 12 may be connected between the rear axle 32 and the pedal unit 40, according to one embodiment, the second frame 12 is a third hinge 83. It may be rotatably coupled to the pedal unit 40 via the.

Optionally, the second frame 12 may be rotatably coupled to the support frame 42 extending from the pedal unit 40 via the third hinge portion 83.

Optionally, a fixing part 71 may be further interposed between the pedal frame 41 and the first frame 11, by which the pedal frame 41 is driven by the first frame. Can be optionally fixed to (11). According to one embodiment, the fixing part 71 may include a first fixing member 711 and a second fixing member 712, the first fixing member 711 is the first frame 11 It may be installed at the lower end of, for example, the lower end of the seat frame 114 or the end of the first lower frame 112, the second fixing member 712 and the first fixing member 711 of the pedal frame 41 It can be installed at opposite locations.

The first fixing member 711 and the second fixing member 712 are provided to be detachable from each other can be coupled or separated from each other by the user's operation.

According to one embodiment as described above, the user can be used for driving as a bicycle as shown in Figure 1 by coupling the first fixing member 711 and the second fixing member 712 with each other.

When a user stores or loads a bicycle, it is necessary to reduce the volume of the bicycle, especially its length. In this case, the user may reduce the total length of the bicycle by at least the length of the rear wheel 321 as shown in FIG. 2 by separating the first fixing member 711 and the second fixing member 712 from each other.

Since the operation of reducing the length of the bicycle is possible by only one operation of separating the first fixing member 711 and the second fixing member 712 from each other and pushing the rear wheel 321 toward the front wheel 311, the user The bicycle according to the invention can be used very conveniently.

As described above, the configuration of reducing the length of the bicycle by moving the rear wheel toward the front wheel may be applied to all embodiments of the present invention.

3 illustrates a bicycle according to another embodiment.

According to the embodiment shown in FIG. 3, the first frame 11 may further include a first auxiliary frame 115. The first auxiliary frame 115 extends in a direction crossing the first upper frame 111 and the first lower frame 112 so that both ends thereof are respectively disposed on the first upper frame 111 and the first lower frame 112. Are combined. The structure of the first frame 11 including the first upper frame 111 and the first lower frame 112 may be further strengthened by the first auxiliary frame 115.

The bicycle according to an exemplary embodiment may further include a shock absorbing frame 43, a fifth hinge portion 85, and a shock absorbing device 70.

The buffer frame 43 may be interposed between the first frame 11 and the second axle frame 22, and the fifth hinge portion 85 may be disposed between the buffer frame 43 and the first frame 11. Interposed between the buffer frames 43 can be made rotatable. For example, one end of the buffer frame 43 may be rotatably coupled to the seat frame 114 of the first frame 11 via the fifth hinge portion 85. Therefore, the other end of the buffer frame 43 is rotatably coupled to the second axle frame 22 via the first hinge portion 81.

One end of the shock absorber 70 may be rotatably coupled to the first auxiliary frame 115, and the other end may be rotatably coupled to the shock absorber frame 43. As the shock absorber 70, a shock absorber such as a spring cylinder, a pneumatic cylinder, a hydraulic cylinder, or the like may be used. According to the structure, the shock applied to the rear wheel 321 may be absorbed by the shock absorber 70.

4 illustrates another embodiment in which the shock absorbing device 70 is coupled. One end of the shock absorbing frame 43 is connected to the first upper frame 111 of the first frame 11 by a fifth hinge 85. ) And the other end of the buffer frame 43 may be rotatably coupled to the second axle frame 22 via the first hinge portion 81. In this case, the second axle frame 22 may extend to cross the seat frame 114. One end of the shock absorber 70 may be rotatably coupled to the first auxiliary frame 115, and the other end may be rotatably coupled to the shock absorber frame 43. In the same manner as in the above-described embodiment, the shock applied to the rear wheel 321 may be absorbed by the shock absorber 70.

5A and 5B illustrate another embodiment in which the shock absorber 70 is coupled. The pedal frame 41 ′ is formed in a bar shape, and one end of the pedal frame 41 ′ is formed through a second hinge portion 82. The lower frame 112 may be rotatably coupled and the other end may be coupled to the pedal unit 40. At this time, the second hinge portion 82 is coupled to the first lower frame 112 at a position slightly spaced from the seat frame 114 in the front wheel direction.

The second axle frame 22 is rotatably coupled to the connection portion between the seat frame 114 and the first lower frame 112 via the first hinge portion 81.

One end of the shock absorber 70 is rotatably connected to a portion 112a between a position of the first lower frame 112 to which the second hinge portion 82 is coupled and a position to which the first hinge portion 81 is coupled. The other end of the shock absorber 70 may be rotatably connected to a position adjacent to the pedal unit 40 of the pedal frame 41 ′. The portion 112a of the first frame 11 need not be integrally formed with the first lower frame 112 or the seat frame 114, but may be formed and connected to a separate member.

Embodiment of this structure is configured so that the shock absorber 70 is installed without a separate shock absorbing frame, even when the rear wheel 321 is folded in the front wheel 311 direction as described above, so that the installation of such a shock absorber 70 does not interfere Can be. To this end, any one end of the shock absorber 70 may be coupled to be detachable from the first frame 11 or the pedal frame 41 '. To this end, the shock absorber 70 may be coupled to the first frame 11 or the pedal frame 41 'by using a device that can be combined or detached by a simple operation of the user, such as a quick release (QR). Can be. This coupling member can be applied to all embodiments of the present invention, of course.

Embodiments of the shock absorber 70 as described above are similar to the direction of the impact load applied to the rear wheel by the obstacle and the shock absorption direction of the rear axle can more effectively absorb the impact from the obstacle on the road to increase the ride comfort. .

For example, when a shock absorber is installed as in the conventional bicycle as shown in FIG. 6A, the direction of the impact f applied by the obstacle 100 caught on the rear wheel 321 and the rear axle 32 connected to the shock absorber. It can be seen that the shock absorbing direction f1 is different from each other.

In contrast, for example, the bicycle of the embodiment shown in FIG. 5 has the direction of impact f applied by the obstacle 100 on the rear wheel 321 and the rear axle 32 connected to the shock absorber, as shown in FIG. 6B. It can be seen that the shock absorption direction f2 of) becomes a similar direction to each other. Therefore, in this embodiment, the user can further increase the shock absorption efficiency received from the obstacle 100. The direction of the impact f applied by the obstacle 100 caught on the rear wheel 321 and the direction of the shock absorption f2 of the rear axle 32 connected to the shock absorber are in a similar direction to each other in FIGS. 5A and FIG. The present invention is not limited to the embodiment shown in 5b, but the same applies to the embodiment shown in FIGS. 3 and 4. Therefore, the bicycle according to the embodiments of the present invention can further maximize the shock absorption efficiency according to the shock absorber.

The shock absorber according to the embodiments of the present invention as described above may be applied to all embodiments of the present specification.

Optionally, the fixing part 71 may be further interposed between the pedal frame 41 and the first frame 11. The pedal frame 41 may be selectively fixed to the first frame 11 by the fixing part 71. According to an embodiment, the fixing part 71 may include a first fixing member 711 and a third fixing member 713, wherein the first fixing member 711 may include a first frame 11. It may be installed at the bottom of, for example, the bottom of the seat frame 114 or the bottom of the first bottom frame (112). The third fixing member 713 may be installed at a position opposite to the first fixing member 711 at the end of the shock absorber 70. A lever 714 may be provided on the third fixing member 713 so that the third fixing member 713 may be selectively coupled with the first fixing member 711. The third fixing member 713 may be selectively coupled or separated from the first fixing member 711 by the operation of the lever 714 of the user. According to one embodiment as described above, the user can be used as a bicycle as shown in Figure 5a by coupling the first fixing member 711 and the third fixing member 713 with each other.

When a user stores or loads a bicycle, it is necessary to reduce the volume of the bicycle, especially its length. In this case, the user may reduce the total length of the bicycle by at least the length of the rear wheel 321 as shown in FIG. 5B by separating the first fixing member 711 and the third fixing member 713 from each other.

On the other hand, as described above, since the third fixing member 713 is installed at the end of the shock absorbing device 70, the shock absorbing device 70 by separating the third fixing member 713 from the first fixing member 711. One end of is also separated from the first frame 11. At this time, the connection frame 715 may be installed between the shock absorber 70 and the first frame 11 so that the separated shock absorber 70 may still be connected to the first frame 11. According to one embodiment, the connecting frame 715 has one end connected to a part of the shock absorber 70, for example, the vicinity of the third fixing member 713, and the other end to a part of the first frame 11, for example, the first frame 11. 2 may be connected to the hinge portion (82). By the connecting frame 715, even when the bicycle is separated, the shock absorber 70 may remain connected without being separated from the first frame 11.

7 illustrates a bicycle according to another embodiment. The embodiment shown in FIG. 7 further includes a bending hinge 91 provided to bend the first frame 11 with respect to the folding axis F in addition to the embodiment shown in FIG. 1.

According to the embodiment shown in Figure 7, the first frame 11 may be provided to be separated in the longitudinal direction of the magnetism. For example, the first upper frame 111 is separated from each other into a first-first upper frame 1111 and a first-second upper frame 1112 along the longitudinal direction thereof, and the first lower frame 112 is separated from each other. The first lower frame 1121 and the second lower frame 1122 may be separated from each other along the longitudinal direction.

The bending hinge 91 may be interposed between the separated portions of the first frame 11. For example, the bending hinge portion 91 is disposed between the first-first upper frame 1111 and the first-second upper frame 1112 and the first-second lower frame 1121 and the first-second lower frame 1122. ) May be intervened.

The bending hinge portion 91 enables the first frame 11 to be bent based on the folding axis F in a direction in which the rear wheel 321 overlaps the front wheel 32.

Accordingly, as shown in FIG. 2, after the rear wheel 321 is pushed in the direction of the front wheel 32 to reduce the length of the bicycle, the first frame 11 is based on the folding axis F of the bending hinge 91. As shown in FIG. 8, the bicycle may be folded such that the front wheel 311 and the rear wheel 321 overlap each other.

Thus, the user can make the bike's length and / or volume smaller, which can further facilitate the storage and transport of the bike.

Although the structure of the bending hinge unit 91 as described above has been described based on the embodiment shown in FIG. 1, the present invention is not necessarily limited thereto and may be applied to all embodiments of the present specification.

FIG. 9A illustrates an embodiment in which the embodiment shown in FIG. 1 is applied to an electric powered bicycle.

The bicycle according to the embodiment illustrated in FIG. 9A may further include a driving member 60 provided to provide driving force to at least one of the front wheel 311 and the rear wheel 321. The driving member 60 may be an electric motor and its accessories in which a driving force is generated by electricity. In the drawings attached to the present specification, the driving member 60 is illustrated as being a mid motor installed adjacent to the pedal unit 40, but is not necessarily limited thereto, and the front axle 31 and / or the rear axle ( A hub motor coupled to 32 may also be used. In addition, a structure in which the two forms are combined may be used.

According to the exemplary embodiment, the battery pack 50 may be further connected to the driving member 60. The battery pack 50 may be detachably coupled to the first frame 11 using the fastening member 51. The fastening member 51 is provided to fix the battery pack 50 to the first frame 11, and may allow the battery pack 50 to be selectively fixed according to a user's manipulation.

According to one embodiment, as shown in Figure 9a, the fastening member 51 may include a first fastening member 511 and a second fastening member 512, and the first fastening member 511 and The second fastening members 512 may be coupled to the first lower frame 112, respectively. The first fastening member 511 and the second fastening member 512 may be positioned on the first lower frame 112 to be provided to selectively fix the battery pack 50. The battery may be operated by a user. The pack 50 may be separated from the first fastening member 511 and the second fastening member 512.

According to one embodiment, the battery pack 50 is located in a position where the user can be removable, so that the user can be easily separated and coupled to the battery pack 50.

In the embodiment shown in FIG. 9A, the battery pack 50 is installed in the first lower frame 112, but the present invention is not limited thereto, and the battery pack 50 may be installed in the first upper frame 111. It may be coupled using the fastening member 51, or may be simultaneously coupled to the first upper frame 111 and the first lower frame 112. 9A illustrates that the battery pack 50 is coupled to the first lower frame 112 by two fastening members 51, but the present invention is not limited thereto. The battery pack 50 may be detachably fixed to the first upper frame 111 and / or the first lower frame 112 of the first frame 11 by at least one fastening member 51.

Although the above structure has been described based on the embodiment shown in FIG. 1, the present invention is not necessarily limited thereto and may be applied to all embodiments of the present specification. That is, the embodiment shown in Figure 9a and its modifications can be equally applied to all embodiments of the present specification.

FIG. 9B illustrates another embodiment in which the embodiment shown in FIG. 1 is applied to an electric powered bicycle.

The bicycle according to the embodiment illustrated in FIG. 9B may also include the driving member 60 and the battery pack 50 as described above. In this case, the battery pack 50 may be accommodated in the fastening groove 133 provided in the first upper frame 111 as shown in FIGS. 9B and 10A. The fastening groove 133 is opened toward the upper direction U, and thus the user may mount and detach the battery pack 50 in the vertical direction in the first upper frame 111.

Although the above structure has been described based on the embodiment shown in FIG. 1, the present invention is not necessarily limited thereto and may be applied to all embodiments of the present specification. That is, the embodiments shown in FIGS. 9B and 10A and variations thereof may be equally applied to all embodiments of the present specification.

FIG. 9C illustrates another embodiment in which the embodiment shown in FIG. 1 is applied to an electric powered bicycle.

The bicycle according to the embodiment illustrated in FIG. 9C may also include the driving member 60 and the battery pack 50 as described above. In this case, the battery pack 50 may be accommodated in the fastening groove 133 provided in the first upper frame 111 as shown in FIGS. 9C and 10B. The fastening groove 133 is opened toward the side direction S, and thus, the user may mount and detach the battery pack 50 in the lateral direction on the first upper frame 111.

Although the above structure has been described based on the embodiment shown in FIG. 1, the present invention is not necessarily limited thereto and may be applied to all embodiments of the present specification. That is, the embodiment shown in Figures 9c and 10b and its modifications can be equally applied to all embodiments of the present specification.

FIG. 9D illustrates another embodiment in which the embodiment shown in FIG. 1 is applied to an electric powered bicycle.

The bicycle according to the embodiment illustrated in FIG. 9D may also include the driving member 60 and the battery pack 50 as described above. In this case, the battery pack 50 may be accommodated in the fastening groove 133 provided in the first lower frame 112 as shown in FIGS. 9D and 10C. The fastening groove 133 is opened toward the lateral direction S, and thus, the user may mount and detach the battery pack 50 in the lateral direction on the first lower frame 112.

Although the above structure has been described based on the embodiment shown in FIG. 1, the present invention is not necessarily limited thereto and may be applied to all embodiments of the present specification. In other words, the embodiment shown in Figures 9d and 10c and variations thereof can be equally applied to all embodiments of the present specification.

As described above, according to embodiments of the present invention, the user may facilitate installation and detachment of the battery pack 50, and thus may be easier to use as an electric powered bicycle. In addition, as shown in FIG. 2, even when the rear wheel is moved in the direction of the front wheel to reduce the length of the bicycle, the space for installing the battery pack 50 having sufficient capacity can be secured to be used as a folding electric bicycle. Can be. In addition, in the case of configuring a two-stage folding bicycle as shown in FIG. 8, the battery pack can be mounted in the same position as the above-described embodiments by separating the battery pack in the longitudinal direction of the bicycle, thereby ensuring sufficient capacity. Has the advantage.

As described above, the present invention has been described with reference to the exemplary embodiments illustrated in the drawings, which are merely exemplary, and it will be understood by those skilled in the art that various modifications and variations may be made therefrom. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Embodiments of the invention can be applied to bicycles and electric powered bicycles.

Claims

A first frame comprising a sheet;

A first axle frame supporting a front axle connected to the front wheel and rotatably connected to one end of the first frame;

A second axle frame supporting a rear axle connected to the rear wheel;

A first hinge part interposed between the first frame and the second axle frame and configured to rotate the second axle frame;

A pedal frame including a pedal unit;

A second hinge part interposed between the pedal frame and the first frame to enable the pedal frame to be rotatable;

A second frame positioned between the rear axle and the pedal unit;

A third hinge part interposed between the second frame and the pedal part to enable the second frame to be rotatable;

A fourth hinge part interposed between the second axle frame and the rear axle and allowing the second axle frame to be rotatable; And

And a fixing part interposed between the pedal frame and the first frame and provided to selectively fix the pedal frame to the first frame.
The method of claim 1,

And a shock absorber interposed between the first frame and the pedal frame.
The method of claim 1,

A buffer frame interposed between the first frame and the second axle frame;

A fifth hinge part interposed between the buffer frame and the first frame to enable the buffer frame to be rotatable; And

And a buffer device interposed between the first frame and the buffer frame.

And the first hinge portion is interposed between the buffer frame and the second axle frame.
The method according to any one of claims 1 to 3,

The first frame includes a 1-1 frame and a 1-2 frame separated from each other in the longitudinal direction of the bicycle,

The bicycle further includes a bending hinge interposed between the first-first frame and the first-second frame and provided to bend the first frame in a direction in which the front wheel and the rear wheel can overlap.
The method according to any one of claims 1 to 4,

A driving member provided to provide a driving force to at least one of the front wheel and the rear wheel; And

And a battery pack electrically connected to the driving member, the battery pack being detachable from the first frame.
The method of claim 5,

The first frame includes a first top frame and a first bottom frame spaced apart from each other,

And the first top frame or the first bottom frame has a fastening groove provided to receive the battery pack.
The method of claim 5,

The first frame includes a first top frame and a first bottom frame spaced apart from each other,

And at least one fastening member interposed between the battery pack and at least one of the first top frame and the first bottom frame.