KR20060067608A - A folding type bicycle - Google Patents

Abstract

The present invention relates to a folding bicycle.

The present invention allows the tubes forming the skeleton of the bicycle to be folded step by step to have a minimum width, and in addition, the transport can be easily moved through the roller in the folded state, the user can conveniently move the bicycle to the desired position To ensure that

Bicycle, folding, folding

Description

Folding bike {A FOLDING TYPE BICYCLE}             

1 is a front configuration diagram of a folding bicycle according to the present invention

2 is a schematic perspective view of a folding bicycle according to the present invention

<Description of the symbols for the main parts of the drawings>

A, B, C, D, E: 1st, 2nd, 3rd, 4th and 5th folding parts

10: head tube

20: Downtube

30: seat tube

40: top tube

50: seatstay

60: front wheel seat

70: roller

The present invention relates to a bicycle, and more particularly, to allow the tubes forming the skeleton of the bicycle to be folded step by step to have a minimum width and to allow the transport to be easily moved through the rollers in the folded state, so that the user can store and desire the bicycle. The present invention relates to a folding bicycle that allows the bicycle to be conveniently moved to a position.

In general, the bicycle is one of transportation means for moving the road more conveniently and quickly, which is recently used for exercise or hobby for the purpose of health. That is, bicycles are released in various forms, such as for mountain, driving, and stunts.

As such, the current bicycle is used mainly for sports or hobbies rather than for ease of movement on the road, and when people want to enjoy cycling for sports or hobbies, many people move to a large area rather than a complicated residential space. It's a way to enjoy cycling together.

According to the trend of the bicycle user has been released a folding bicycle that can be stored and transported in the trunk of the vehicle, the folding bicycle is mainly to make the trunk of the vehicle after folding the tube in one direction. However, in this case, it is not easy to carry according to the rotation of the handle, etc. in the folded state, and because the user has to carry it when carrying it after folding it, it is not easy to move it in the case of weak people such as children or women. It has been.

In particular, in modern times, as there are many high-rise buildings such as apartments, placement of bicycles is kept in the house. Accordingly, many elevators are used, which causes inconveniences such as carrying a bicycle in a folded state.

Accordingly, the present invention has been made to solve the above problems and the object of the present invention is to easily and conveniently move the user in the folded state while maintaining the minimum width in the state in which the bicycle is folded in multiple stages. It is to provide a folding bicycle that can be made.

Hereinafter, the folding bicycle according to the present invention will be described in detail with reference to the accompanying drawings. However, if it is determined that the gist of the present invention can be obscured, the detailed description thereof will be omitted.

The present invention, the head tube 10 to which the handle stay 13 connecting the handle 11 and the front wheel 12 is rotatably coupled, and the center of rotation of the head tube 10 and the pedal 21 is connected. Seat tube 30 to connect the down tube 20, the auxiliary saddle 31 and the rotation center of the pedal 21, the down tube 20 and the seat tube 30 is connected to the saddle 41 is provided Top tube 40, chainstay 50 for connecting the center of rotation of the pedal 21 and the center of rotation of the rear wheel 51, seatstay 60 for connecting the center of rotation of the rear wheel 51 and the auxiliary saddle 31 ) And bicycles formed by combining various parts with these members,

A lower end of the top tube 40 having a saddle 41 at an upper end thereof is hinged with a hinge pin with respect to one side of the down tube 20 so that it can be folded back and forth, and one side thereof is the seat tube 30. A first folding portion (A) adapted to be detachably coupled through a known locking lever (L1) that is tightly supported and tightened and released as the lever is pulled;

The upper end of the down tube 20 is bent to form an extension portion 22 extending horizontally in a predetermined section, and one side of the extension portion 22 is hinged to the upper end of the down tube 20 to pull the lever. A second folding part (B) detachably locked by a known locking lever (L2) which is locked and released according to the second side and coupled to the head tube (10);

A third folding portion (C) which is hinged so that the lower portion of the down tube 20 can be rotated forward and backward so that the front wheel 12 can be rotated backward;

Fourth folding portion (D), which is one end of the handle 11 is hingedly connected to be detachably locked by a known locking lever L4 which is tightened and released as the lever is pulled:

When the front wheel seating frame 60 is rotated on one side of the auxiliary saddle 31 provided at the upper connection end of the seat tube 30 and the seat stay 50, the hinge L5 is the same as the horizontal surface of the auxiliary saddle 31. ) Is configured to be coupled to the fifth folding portion (E).

That is, according to the present invention, the tube and the stay forming the skeleton of the bicycle are folded in steps by the first, second, third, fourth and fifth folding parts (A, B, C, D, and E). In this case, the fourth folding portion (D) and the fifth folding portion (E) can be eliminated even if the folding operation is excluded from the configuration.

Skeleton of the folding bicycle according to the invention, the head tube 10 is rotatably coupled to the handle stay 13 connecting the handle 11 and the front wheel 12, the head tube 10 and the pedal ( Down tube 20 for connecting the rotation center of the 21, the chainstay 50 for connecting the rotation center of the pedal 21 and the rotation center of the rear wheel 51, the auxiliary saddle 31 and the pedal 21 The seat tube (30) for connecting the center of rotation of the seat, the seat center (50) for connecting the center of rotation and the auxiliary saddle (31) of the rear wheel 51, and the saddle 41 on the top and the seat tube (30) The top tube 40 is fixed to the lower end is rotatably connected to the down tube 20.

The top tube 40 is rotatably coupled to the down tube 20 by a first folding portion A, and the top tube 40 attaches the locking lever L1 to the seat tube 30. Removably coupled through.

The locking lever L1 is to allow the top tube 40 to be selectively locked with respect to the seat tube 30 by a known technical means, and to rotate the fixing member and the fixing member for rotating and locking the hinge pin. The top tube 40 is released with respect to the seat tube 30 as the lever is configured to pull the lever. Here, the locking lever L1 is locked, so that the saddle 41 can be stably fixed, but the down tube 20 and the seat tube 30 are connected to the top tube 40 as they are connected. The structure of the bike's front and rear frames can be further strengthened.

The first folding portion (A), the lower end of the top tube 40 is hinged with respect to one side of the down tube 20 is possible to be folded back and forth, one side of the seat tube 30 The top tube 40 is released from the seat tube 30 when the lever of the locking lever L1 is detachably coupled through the locking lever L1, and the top tube 40 is rotated forward at the same time. 40 is in close contact with the down tube (20).

The down tube 20 is preferably formed such that the upper end is bent forward and has an extension portion 22 extending horizontally toward a predetermined section. This is to easily rotate the front wheel and the head tube side by 90 degrees, the length of the extension 22 is to be configured equal to the parallel spacing of the front wheel and the rear wheel to be described later.

The upper end portion 22 of the down tube 20 is the front end is connected to the head tube 10 and the rear end is rotated 90 degrees in one direction by the second folding portion (B).

The second folding portion (B), one side is hinged to the upper end of the down tube 20 is detachably locked by a locking lever (L2) and the other side is coupled to the head tube 10 and the head tube The 10 can be rotated by 90 degrees in one direction.

The locking lever (L2), the locking member is rotated around the hinge to release the locking state when the lever is pulled by a known technical means, if the means that can rotate the extension portion 22 by 90 degrees Applicable

The down tube 20 is formed by cutting a lower side thereof, and the cut down upper tube is rotated with respect to the lower down tube through a third folding portion C.

The third folding portion (C) is to be rotated to the rear around the hinge of the line in which the down tube (20) is cut, and the middle portion of the handle 11 and the front view top beveled 40 forward. If you hold the moment in the rear direction to hold the third folding portion (C) is folded in the upper direction and bend to be able to closely contact the front wheel 12 portion in parallel to the rear wheel (51). Here, the rear wheel 51 is in a state of being placed side by side with the front wheel 12 in a state rotated about 180 degrees by the rotational force.

At this time, the handle 11 is in a state where one side protrudes outward a lot, for this purpose, one side of the handle 11 is provided with a fourth folding portion D to be folded downward, and the fourth folding portion ( D) is hingedly connected and detachably locked by the locking lever L4.

The locking lever L4 is composed of a hinge pin and a locking member and a lever for rotating the locking member by a known technical means so that the locking member is rotated when the lever is pulled so that the handle 11 can be rotated about the hinge. Done.

On one side of the auxiliary saddle 31, the front wheel seat frame 60 is rotatably coupled by the fifth folding portion (E).

The fifth folding portion (E), while hinged to one side of the front wheel seat frame 60 to one side downward of the auxiliary saddle 31 is usually maintained in a downward vertical state when the auxiliary saddle (31) ) Is rotated to go to the bottom, and is rotated by its own weight to become a horizontal state and seats the front wheel 12.

The front of the auxiliary saddle 31 is provided with a pair of rollers 70 for transport, which corresponds to the bottom surface when the bicycle skeleton is folded, and the bicycle skeleton can be moved by the support of the roller 70.

The folding process of the folding bicycle according to the present invention configured as described above will be described in detail with reference to the drawings.

In folding, first, the lever of the locking lever L1 is operated to release the top tube 40 from the seat tube 30, and then the saddle 41 is rotated to the front of the bicycle.

The top tube 40 connected to the saddle 41 is rotated about the first foldable portion A so that the top tube 40 is maintained in the fully rotated state toward the down tube 20, and the locking continues. Pull the lever of the lever (L2) so that the extension part 22 is released from the down tube 20, and then grasp the middle part of the top tube 40 that is folded and pull the handle 11 part to one side (or the handle When it is slightly pushed forward using the cloud of the rear wheel in the caught state) with respect to the down tube 20, the extension 22 is rotated at an angle of 90 degrees about the folding portion (B).

Then, if you grab the front part of the bicycle skeleton, that is, the middle part of the handle 11 and the top tube 40, and lift it upwards and rearwards momentarily (or normally hold the front part with the rear wheel brakes mounted on the left handle). When pushed backward), the front wheel (12) part is rotated to the side of the rear wheel (51) as the fold (C) is folded upward and each tube and saddle fixed to the rear wheel rotate about 180 degrees around the rear wheel. It is positioned in parallel, and the bottom of the front wheel 12 is continuously extended to the side to be seated on the horizontal front seating frame 60.

Here, the front wheel seat frame 60 is rotated about the hinge (L5) by the self-gravity to maintain the same surface as the auxiliary saddle 31 is fixed position.

Subsequently, when the lever of the locking lever L4 of the handle 11 is pulled, it is in a separated state, and when the end is continuously pulled, the pivot is rotated around the fourth folding portion D to be in a folded state.

In this manner, when the folded portion is held in the folded state, the auxiliary saddle 31 can move through the roller 70.

 Accordingly, the folding bicycle according to the present invention can be easily and conveniently moved by the user by being kept through the roller in the folded state as well as being easily kept by keeping the minimum width in the state where the bicycle is folded in multiple stages. It has an effect.

Claims (6)

The head tube 10 to which the handle stay 13 connecting the handle 11 and the front wheel 12 is rotatably coupled, and the down tube 20 connecting the rotation center of the head tube 10 and the pedal 21. ), A seat tube (30) connecting the center of rotation of the auxiliary saddle 31 and the pedal (21), the top tube 40 is connected to the down tube 20 and the seat tube (30) is provided with a saddle (41) ), The chainstay 50 for connecting the rotation center of the pedal 21 and the rotation center of the rear wheel 51, the seatstay 60 for connecting the rotation center of the rear wheel 51 and the auxiliary saddle 31 and these members In the bicycle formed by combining various parts to, A lower end of the top tube 40 having a saddle 41 at an upper end thereof is hinged with a hinge pin with respect to one side of the down tube 20 so that it can be folded back and forth, and one side thereof is the seat tube 30. A first folding portion (A) adapted to be detachably coupled through a known locking lever (L1) that is tightly supported and tightened and released as the lever is pulled; The upper end of the down tube 20 is bent to form an extension portion 22 extending horizontally in a predetermined section, and one side of the extension portion 22 is hinged to the upper end of the down tube 20 to pull the lever. A second folding part (B) detachably locked by a known locking lever (L2) which is locked and released according to the second side and coupled to the head tube (10); A third folding part (C) which is hinged so that the lower part of the down tube 20 can be vertically rotated back and forth so as to rotate the front wheel 12 rearward; Fourth folding portion (D), which is one end of the handle 11 is hingedly connected to be detachably locked by a known locking lever L4 which is tightened and released as the lever is pulled: When the front wheel seating frame 60 is rotated on one side of the auxiliary saddle 31 provided at the upper connection end of the seat tube 30 and the seat stay 50, the hinge L5 is the same as the horizontal surface of the auxiliary saddle 31. A fifth folding portion (E) adapted to be coupled; Folding bike, characterized in that configured to include. The method of claim 1, Folding bike, characterized in that a pair of rollers (70) for transport in front of the auxiliary saddle (31) is provided. The method according to claim 1 or 2, The top bike 40 is a folding bike, characterized in that to form a rounded bent upward opening to facilitate the driver's riding. The method according to claim 1 or 2, The first, second, second, third, fourth, and fifth folding parts (A, B, C, D, and E) of the folding bicycle, characterized in that the fourth folding portion (D) is excluded. The method according to claim 1 or 2, Folding bike, characterized in that the fifth folding portion (E) is excluded from the first, second, third, fourth, fifth folding parts (A, B, C, D, E). The method according to claim 1 or 2, Folding bike, characterized in that the fourth folding portion (D) and the fifth folding portion (E) is excluded from the first, second, third, fourth, fifth folding parts (A, B, C, D, E) .

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