KR101231272B1

KR101231272B1 - Bicyle capable of transforming pose

Info

Publication number: KR101231272B1
Application number: KR1020100066542A
Authority: KR
Inventors: 정재근
Original assignee: 정재근
Priority date: 2010-07-09
Filing date: 2010-07-09
Publication date: 2013-02-07
Also published as: KR20120005859A

Abstract

Disclosed is a bicycle that can be easily shifted. Such bicycles include a rear wheel, a pedal, and a main frame provided with a chain; A first switch having a saddle and pivotally connected to the main frame to be rotated in a clockwise direction to be folded in the rear wheel direction; A second switching unit provided with a handle and a handle frame, the second switching unit being rotatably provided at the front end of the main frame to be folded in the direction of the first switching unit when the driving posture is switched; A third switching unit provided in the second switching unit and including a front wheel; The third switching unit is disposed to be inclined between the second switching unit and the third switching unit, and when switching to a non-traveling attitude, the third switching unit is along a trajectory in a direction perpendicular to the plane of the rotational trajectory of the first and second switching units. By folding downward in the rear wheel direction, the front wheel is disposed between the first and the second switching portion includes a slope switching portion that can be reduced in size during the non-traveling attitude.

Description

Bicycle which can change posture {BICYLE CAPABLE OF TRANSFORMING POSE}

The present invention relates to a bicycle, it is possible to easily change the posture to a driving posture or a non-driving posture by improving the structure, and relates to a bicycle that can occupy a small volume when switching a non-driving posture.

In general, a bicycle is a means of transportation that allows a person to move forward by turning the wheels with the force generated by pedaling with two feet.

Such bicycles were a major means of transportation before automobiles were widely used in the past, and recently, interest in bicycles is increasing due to the activation of leisure culture. Accordingly, the bicycle user may ride the bicycle by loading the bicycle in a vehicle or moving to a suburban or bicycle-only road using a train.

At this time, since the size of the bicycle is limited to moving the bicycle, a bicycle capable of changing the posture has been developed to facilitate the movement of the bicycle.

That is, when the bicycle is being transported, it can be folded and switched to the non-driving posture, and after reaching the destination, it can be unfolded and switched to the driving posture.

However, such a conventional bicycle has a limitation in reducing the volume of the bicycle by bending the link of the frame, and also has a complicated structure of folding.

In addition, even when the bicycle is folded, it is difficult to reduce the volume of the bicycle because the front wheel or the rear wheel is not completely folded inward and protrudes out of the frame.

When the bicycle is in a running position, the bicycle may be standing upright by unfolding the support and contacting the ground. However, when the bicycle is in a non-driving position, the bicycle may not stand in an upright state by folding the support. Therefore, the user is uncomfortable because the user must hold the bicycle or unfold the cover while supporting the bicycle on a wall and store the bicycle in the cover.

Accordingly, the present invention has been proposed to solve the above problems, and an object of the present invention is to provide a bicycle that can be easily converted to a driving posture and a non-driving posture, and occupies a small volume when the non-driving posture is switched. will be.

In order to achieve the above object, an embodiment of the present invention, the main wheel is provided with a rear wheel, a pedal, and a chain; A first switch having a saddle and pivotally connected to the main frame to be rotated in a clockwise direction to be folded in the rear wheel direction; A second switching unit provided with a handle and a handle frame, the second switching unit being rotatably provided at the front end of the main frame to be folded in the direction of the first switching unit when the driving posture is switched; A third switching unit provided in the second switching unit and including a front wheel; And

The third switching unit is disposed to be inclined between the second switching unit and the third switching unit, and when switching to a non-traveling attitude, the third switching unit is arranged along a trajectory in a direction perpendicular to the plane of the rotational trajectory of the first and second switching units. By folding downward in the rear wheel direction, the front wheel is disposed between the first and second switching parts to provide a bicycle which can be easily converted to a posture including an inclination switching part which can be reduced in size during a non-driving attitude.

In addition, another embodiment of the present invention, the main wheel is provided with a rear wheel, a pedal, and a chain;

A pivot frame rotatably connected to an upper portion of the main frame and rotated in the rear wheel direction when the vehicle is switched to a non-traveling attitude;

A first link member connected to the main frame and the other side connected to the pivot frame to be expanded during the driving posture to support the pivot frame and to be folded during the non-travel posture;

A sub-frame rotatably connected to the tip of the main frame, the sub-frame being rotated in the direction of the turning frame and overlapping the turning frame when switching to a non-driving posture;

A second link member having one side connected to the sub frame and the other side connected to the pivot frame to be unfolded during the driving posture to support the subframe and to be folded during the non-driving posture;

A handle frame inserted through a shaft pipe provided at the front end of the sub frame and having a handle; And it is disposed so as to be inclined and folded between the lower portion of the handle frame and the front wheels provided in the handle frame, when switching to the non-driving attitude, the front wheel is perpendicular to the plane of the rotation trajectory of the main frame and the sub-frame According to the trajectory of the direction is provided in the rear wheel direction is folded down to provide a bicycle easy to change posture including the inclination switching means for positioning the front wheel between the handle frame and the main frame.

Bicycle according to the present invention made as described above is composed of the first to third switching unit is folded or unfolded, the posture can be easily switched to the running posture and non-driving posture, the front wheel is further configured by the inclination switch further Since the bicycle can be folded in an inclined direction, there is an advantage of reducing the size of the bicycle when the bicycle is shifted to a non-driving posture.

1 is a view showing a bicycle easy to change posture according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating a first step for changing the posture of the bicycle illustrated in FIG. 1.
3 is a view illustrating a second step for changing the posture of the bicycle illustrated in FIG. 1.
4 is a partially enlarged perspective view illustrating an enlarged view of the locking unit illustrated in FIG. 3.
FIG. 5 is a diagram illustrating a third step for changing the posture of the bicycle illustrated in FIG. 1.
FIG. 6 is a view illustrating a process of switching the third switching unit by the inclination switching unit of the bicycle shown in FIG. 1.
7 is a view showing the structure of the "AA" cross section of FIG.

Hereinafter, a bicycle according to an embodiment of the present invention will be described in detail with the accompanying drawings.

As shown in Figures 1 to 5, the bicycle 1, which is easy to change posture proposed by the present invention is a main frame provided with a rear wheel 5, a pedal 17, and a chain (19). (Main frame f1);

A saddle (3) having a first switching unit (7) which is pivotally connected to the main frame (f1) to be rotated clockwise (a1) and folded in the rear wheel (5) direction;

A second switching part 13 provided with a handle 9 and pivotally provided at the tip of the main frame f1 so as to be folded in the direction of the first switching part a2 when the driving posture is changed;

A third switching unit 15 provided in the second switching unit 13 and including a front wheel 11; And

The third switching unit 15 is disposed to be inclined between the second switching unit 13 and the third switching unit 15 so that the third switching unit 15 may change the first and second switching units 7, when the vehicle is switched to the non-traveling posture. The front wheel 11 is disposed between the first and second switching parts 7 and 13 by being folded downward in the rear wheel direction along the trajectory of the rear in the vertical direction with respect to the plane formed by the rotational trajectory of 13). It includes an inclination switching unit 71 can be reduced in size when switching the non-traveling attitude.

In the bicycle having an easy posture changeover having such a structure, the first switching unit 7 is pivotally connected to an upper portion of the main frame f1 and includes a turning frame f2 having a saddle 3; The main frame f1 and the revolving frame f2 are connected to each other to include a first link member 25 to which the revolving frame f2 can be folded in the main frame f1 direction.

The main frame f1 has a rear wheel 5 mounted at one side thereof, and a subframe f3 of the second switching unit 13 described later is pivotally connected to the other side thereof. In addition, the main frame f1 protrudes upward from the tubular body 33, and the upper portion of the tubular body 33 is pivotally connected to a lower portion of the pivot frame f2 by a hinge pin (P). do.

Therefore, the pivot frame f2 may be pivoted along the clockwise direction a1 about the hinge pin P. As shown in FIG.

In this case, the first link member 25 may include a first link 39 connected to the main frame f 1 by a first hinge pin P 1, and a first link member 25 connected to the pivot frame f 2. Second Hinge Pin (Second Link) 43 connected by Second Hinge Pin (P2), and Third Hinge Pin (Hinth Pin) for hingeably connecting the first and second links 39,43. ; P3).

The first link member 25 is inwardly a3 of the first and the revolving frames f1 and f2 when the revolving frame f2 is pivoted along the clockwise direction a1 toward the main frame f1. The first link member 25 may be prevented from contacting the rear wheel 5 by being bent.

On the other hand, the second switching unit 13 is provided with a sub-frame (f3) rotatably connected to the front end of the main frame (f1), the front end of the sub-frame (f3) handle frame (Handel Frame; 47 is inserted into the shaft tube 49, one side is connected to the coupling portion of the shaft tube 49 and the sub-frame (f3) and the other side is connected to the hinge pin (P) of the first switching unit (7) Link member 51 is included.

In the second switching unit having such a structure, one side of the sub frame f3 is connected to the other side of the main frame f1 by a fourth hinge pin P4, and the other side of the sub frame f3 is connected to the shaft tube 49. .

In this case, the handle frame 47 is coupled to the shaft tube 49, and the front wheel 11 is provided under the handle frame 47. As a result, the subframe f3 supports the handle and the front wheels 9 and 11.

In addition, the subframe f3 has a shape in which the middle is bent at a predetermined angle by bending in the front wheel 11 direction.

That is, one side 55a of the subframe f3 is inclined upward at an angle θ with respect to the horizontal line, and the other side 55b is inclined at an angle θ1 greater than the angle of the one side with respect to the horizontal line. .

Therefore, when the subframe f3 is folded to the first switching unit 7 along the clockwise direction a2, the subframe f3 may be folded smaller than when the subframe f3 is straight.

The second link member 51 is connected to the third link 59 connected to the hinge pin P of the main frame f1 and the fifth link pin P5 to the subframe f3. And a sixth hinge pin P6 for hingeably connecting the fourth link 61 and the third and fourth links 59 and 61.

The second link member 51 is rotated in the outward direction a4 of the turning frame f2 and the subframe f3 when the subframe f3 is turned toward the turning frame f2 along the clockwise direction a2. By bending, the second link member 51 may be prevented from contacting the subframe f3.

In addition, the revolving frame f2 and the subframe f3 are fixed to each other by the locking unit 63 to maintain the folded state continuously.

That is, as shown in Figure 4, the main frame (f1) is provided with a locking pin 65 and the sub-frame (f3) is provided with a receiving port 67 to which the locking pin 65 is coupled.

Therefore, when the first switching unit 7 is folded and the second switching unit 13 is folded, the engaging pin 65 of the main frame f1 is inserted into the receiving opening 67 of the subframe f3. It can keep you in a non-driving posture.

Again, referring to FIGS. 1 to 6, the third switching unit 15 is disposed below the handle frame 47 so as to be inclined forward and at the bottom of the upper inclined plate 70. A lower shaft 74 disposed at a lower portion of the lower inclination plate 74 to which the fork 72 fixing the front wheels 11 is connected, and a hinge shaft for hinge coupling one side of the upper inclination plate 70 and the lower inclination plate 74 to each other; 83) and a main locking member 78 provided at the other side of the lower inclined plate 74 to be coupled to the other side of the upper inclined plate 70 to integrally couple the upper and lower inclined plates 70 and 74. And an auxiliary locking member 80 provided at one side of the upper inclined plate 70 to fix the lower inclined plate 74 in a folded state.

In the third switching unit having such a structure, the upper inclined plate 70 is inclined at an acute angle θ2 downward with respect to the normal line L2 of the axial center line L1 of the handle frame 47. It has a shape.

In addition, the lower inclined plate 74 is also inclined at the same angle as the upper inclined plate 70 to be in contact with the bottom surface of the upper inclined plate 70.

As the main locking member 78 is fastened in the state in which the upper and lower inclined plates 70 and 74 are in contact with each other, the upper and lower inclined plates 70 and 74 may be integrally coupled.

In addition, the upper and lower inclined plates 70 and 74 may be integrally coupled in the vertical direction by the main locking member 78 to support a load acting on the handle 9 in a traveling posture.

The main locking member 78 is pivotally coupled to the other side of the lower inclined plate (74) by a hinge pin (83) and is caught on the other side of the upper inclined plate (70) and the clasp (82) Lever (86) for releasing the engagement state of the latch (82) by wetting the elastic member 84 to elastically pull the upper portion and the latch 82 connected to the latch 82 and coupled to the upper inclined plate (70) ).

The main locking member 78 having such a structure is caught by the other side of the upper inclined plate 70 by the latch 82 is pulled by the elastic member 84, preferably the tension spring.

At this time, the other bottom surface of the upper inclined plate 70 is formed by the inclined surface 87, so that the latch 82 is in contact with the inclined surface 87 to slide gradually to the other upper surface of the upper inclined plate 70.

As described above, the latch 82 caught by the upper inclined plate 70 may be released from the engagement with the upper inclined plate 70 by being flipped by the lever 86.

That is, as shown in FIG. 7, the lever 86 is coupled to the bracket B protruding from the lower inclined plate 74 by an eccentric pin 83 so that the lever 86 is counterclockwise. When folded, the catch 82 is also flipped in a counterclockwise direction so that the catch 82 can be separated from the upper inclined plate 70.

At this time, the eccentric pin 83 has a cylindrical shape to pass through the bracket (B) and the latch 82, the eccentric cam (C) is formed on one side of the eccentric pin (83). In addition, eccentric surfaces C1 and C2 are formed at one side of the eccentric hole h1 formed in the latch 82.

At this time, the eccentric surface (C1, C2) has a large eccentric surface (C1) and a small eccentric surface (C2) is formed around the center point of the eccentric hole (h1). That is, the eccentric surfaces C1 and C2 have an elliptical shape with respect to the center point of the eccentric hole h1.

Therefore, when the lever 86 is rotated, the eccentric cam C of the eccentric pin 83 contacts the eccentric surfaces C1 and C2 of the latch 82 so that the latch 82 can be rotated together. .

As a result, when the lever 86 is rotated, the latch 82 may be rotated together to be separated from the upper inclined plate 70.

As such, the lower inclined plate 74 may be displaced from the upper inclined plate 70, and the posture may be shifted in the rear direction of the bicycle 1 about the hinge axis 83, and is fixed by the auxiliary locking member 80. .

1 to 6, the auxiliary locking member 80 includes an upper bracket 90 protruding from the upper surface of the upper inclined plate 70, and a locking bar pivotally mounted to the upper bracket 90. A locking bar 92, a spring 94 disposed between one end of the locking bar 92 and an upper surface of the upper inclined plate 70, and a lower surface of the lower inclined plate 74 to protrude from the locking bar 92. It includes a lower bracket (96) coupled to.

In the auxiliary locking member having such a structure, the spring 94 preferably includes a compression spring, so that one end of the locking bar 92 is elastically pushed upward.

Therefore, the other end of the locking bar 92 maintains a state inclined in the direction of the lower inclined plate (74).

In this state, when the lower inclined plate 74 is folded back about the hinge shaft 76, the lower bracket 96 is coupled to the locking bar 92, and the locking bar 92 is caused by an elastic force. The lower bracket 96 is fixed by pressing.

As a result, the third switching unit 15 of the bicycle 1 may be fixed by the auxiliary locking member 80 in a state of being folded backward to maintain the non-driving posture.

In this case, the lower inclined plate 74 is inclined downward at a predetermined angle, that is, an acute angle θ2, with respect to the normal line L2 of the center line L1 of the handle frame 47.

Accordingly, the third switching unit 15 is folded downward in the rear wheel 5 direction along a trajectory perpendicular to the plane of the rotational trajectory of the first and second switching units 7 and 13. Thus, the front wheel 11 is disposed between the first and second switching unit (7, 13).

Therefore, when the bicycle 1 is switched to the non-traveling posture, the front wheel 11 of the third switching unit 15 is positioned within the area range formed by the first and second switching units 7 and 13. The size of (1) can be reduced.

If the lower inclined plate 74 is perpendicular to the normal line L2, unlike the present embodiment, when the third switching unit 15 is flipped backward, the front part 11a of the front wheel 11 (FIG. 5) Since the protruding upwards beyond the handle frame 47 increases the size of the bicycle 1 in the non-driving posture, in the present embodiment, since the lower inclined plate 74 is inclined, the front wheel 11 is the handle frame ( 47) The size of the bicycle 1 can be reduced because it is accommodated within the area.

On the other hand, the pedestal 100 is provided below the main frame f1. The pedestal 100 has a rectangular ring shape that protrudes downward and has a horizontal shape at the bottom.

Therefore, when the bicycle 1 is switched to the non-driving posture and then standing on the ground, the bicycle 1 can be raised even in the non-driving posture by bringing the pedestal 100 into contact with the ground.

Hereinafter, the attitude change process of the bicycle according to the embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

1 to 6, when the posture of the bicycle 1 is changed from the driving posture to the non-driving posture, the pivot frame f2 of the first switching unit 7 is centered on the hinge pin P. As shown in FIG. Rotate clockwise.

When the pivot frame f2 rotates clockwise (rear wheel direction; a1), the first link 39 and the second link 43 of the first link member 25 are bent in the inward direction a3. .

Then, the subframe f3 of the second switching unit 13 is rotated in the clockwise direction a2 about the fourth hinge pin P4. As the subframe f3 approaches the first switching unit 7, the second link member 51 is bent in the outward direction a4.

As the second link member 51 is bent, the fourth link 61 is superimposed on the third link 59 to minimize the gap between the subframe f3 and the swing frame f2.

Furthermore, the one side 55a and the other side 55b of the subframe f3 have a structure inclined at a large angle with respect to the horizontal line, thereby making the bicycle 1 smaller than the case where the subframe f3 is in a straight shape. Can be folded.

As the subframe f3 rotates clockwise a2 to approach the turning frame f2, the locking pin 67 of the subframe f3 also approaches the receiving opening 65 of the main frame f1. Can be combined.

Accordingly, the first and second switching parts 7 and 13 may be continuously maintained in the non-driving posture by the engagement of the locking pin 67 and the receiving opening 65.

As such, after the first and second switching units 7 and 13 are folded, the third switching unit 15 is folded, and the third switching unit 15 is folded in a state inclined downward.

When the folding process of the third switching unit 15 will be described in more detail, the upper and lower inclined plates 70 and 74 are fixed by the main locking member 78 in a state of contacting up and down.

That is, the latch 82 of the lower inclined plate 74 is caught by the upper inclined plate 70, so that the upper and lower inclined plates 70 and 74 are integrally fixed in an inclined state.

In this state, by locking the lever 86 in the counterclockwise direction, the latch 82 is also flipped in the counterclockwise direction so that the latch 82 can be detached from the upper inclined plate 70.

Accordingly, the lower inclined plate 74 is separated from the upper inclined plate 70, and in this case, the lower inclined plate 74 is inclined downward by a predetermined angle, so that the lower inclined plate 74 is separated by external force. Can be flipped down without aft.

As such, when the lower inclined plate 74 flipped down by its own weight is flipped downward for a predetermined distance, the user can push the lower inclined plate 74 to fix it by the auxiliary locking member 80.

That is, when the lower inclined plate 74 is pushed, the lower inclined plate 74 may be fixed by locking the lower bracket 96 to the locking bar 92 of the upper inclined plate 70.

At this time, the lower inclined plate 74 is inclined downward by a predetermined angle with respect to the normal line L2 of the center line L1 of the handle frame 47, so that the third switching unit 15 is in the rear direction of the bicycle 1. In the case of folding, the size of the bicycle 1 which has been switched to the non-driving posture can be reduced by being folded so that the front wheel 11 is inclined downwardly.

That is, unlike the present embodiment, when the lower inclined plate 74 maintains the horizontal line with respect to the normal line, when the third switching unit 15 is flipped backward, the front part 11a of the front wheel 11 is the handle frame 47. Since the size of the bicycle 1 increases in the non-driving posture because it protrudes upward, the front wheel 11 is accommodated in an area within the handle frame 47 because the lower inclined plate 74 is inclined. Therefore, the size of the bicycle 1 can be reduced.

In this manner, after the bicycle 1 is switched to the non-traveling posture, the bicycle 1 can be upright by supporting the pedestal 100 on the ground or the like.

In addition, when the bicycle 1 is switched to a running posture, the front end of the locking bar 92 is simply pressed by pressing the rear end of the locking bar 92 since the front end of the lower inclined plate 74 is inclined downward by a predetermined angle. Since the third switching unit 15 is folded forward by its own weight, such as), no additional force is required.

When the third switching unit 15 reaches a predetermined position, the user pushes the third switching unit 15 so that the latch 82 is caught by the upper inclined plate 70 to switch to the traveling position.

As such, the bicycle 1 according to the present invention can be easily switched between a traveling posture and a non-driving posture.

1: bicycle 3: saddle
5: rear wheel 7: first transition
13: second switching unit 15: third switching unit
25: first link member 51: second link member
71: inclination switching portion 78: the main locking member

Claims

A main frame f1 provided with a rear wheel, a pedal and a chain;
A first link member 25 having one end connected to the main frame f1;
A swing frame (f2) connected to the other end of the first link member (25);
A saddle provided with a first switch unit 7 pivotally connected to the main frame to be folded in the rear wheel direction by rotating in a clockwise direction;
A second switching unit 13 provided with a handle and a handle frame and rotatably provided at the front end of the main frame to be folded in the direction of the first switching unit when the non-driving posture is changed;
A third switching unit 15 provided at the second switching unit and including a front wheel; And
The third switching unit is disposed to be inclined between the second switching unit and the third switching unit, and when switching to a non-traveling attitude, the third switching unit is arranged along a trajectory in a direction perpendicular to the plane of the rotational trajectory of the first and second switching units. By folding downward in the rear wheel direction, the front wheel is disposed between the first and the second switching portion includes an inclination switching portion 71 that can be reduced in size in non-driving attitude,
The inclination switching unit 71 is an upper inclined plate 70 is disposed to be inclined forward in the lower portion of the handle frame;
A lower inclined plate 74 disposed below the upper inclined plate and connected to a fork for fixing the front wheels;
A hinge shaft 76 hinged to one side of each of the upper and lower inclined plates;
A main locking member (78) provided at the other side of the lower inclined plate and coupled to the other side of the upper inclined plate to integrally combine the upper and lower inclined plates; And
Is provided on one side of the upper inclined plate easy to change the posture comprising a secondary locking member (80) for fixing the lower inclined plate in a folded state.

A main frame f1 provided with a rear wheel, a pedal and a chain;
A pivot frame (f2) rotatably connected to an upper portion of the main frame and rotated in the rear wheel direction when the vehicle is switched to a non-traveling attitude;
A first link member 25 connected to the main frame and the other side connected to the pivot frame to expand in the driving posture to support the pivot frame and to be folded in the non-travel posture;
A sub-frame (f3) rotatably connected to the tip of the main frame, the sub-frame (f3) being rotated in the direction of the pivot frame and overlapping the pivot frame when the vehicle is switched to a non-traveling posture;
A second link member 51 which is connected to one side of the sub frame and the other side is connected to the pivot frame to expand in a driving position to support the sub frame and to be folded in a non-driving position;
A handle frame inserted through a shaft pipe provided at the front end of the sub frame and having a handle; And
Arranged so as to be inclined and folded between the lower portion of the handle frame and the front wheels provided in the handle frame, when switching to the non-driving attitude, the front wheel is perpendicular to the plane of the rotational trajectory of the main frame and the sub-frame It is folded along the trajectory of the rear wheel in the downward direction to include the inclination switching unit 71 so that the front wheel is located between the handle frame and the main frame,
The inclination switching unit 71 is an upper inclined plate 70 is disposed to be inclined forward in the lower portion of the handle frame;
A lower inclined plate 74 disposed below the upper inclined plate and connected to a fork for fixing the front wheels;
A hinge shaft 76 hinged to one side of each of the upper and lower inclined plates;
A main locking member (78) provided at the other side of the lower inclined plate and coupled to the other side of the upper inclined plate to integrally combine the upper and lower inclined plates; And
Is provided on one side of the upper inclined plate easy to change the posture comprising a secondary locking member (80) for fixing the lower inclined plate in a folded state.

The method of claim 1,
The first switching unit is pivotally connected to the upper portion of the main frame, the rotation frame is rotated in the rear wheel direction when switching to a non-driving posture;
One side is connected to the main frame, the other side is connected to the pivot frame is expanded in the driving posture to support the pivot frame, the non-driving bicycle including a first link member that is folded in a non-driving attitude .

The method of claim 1,
The second switching unit 13 is pivotally connected to the distal end of the main frame f1, and is rotated in the direction of the turning frame when folded to the non-driving posture and folded in the turning frame f2. );
A second link member 51 connected to the sub frame f3 and the other side connected to the pivot frame to be unfolded in the driving posture to support the subframe, and to be folded in the non-traveling posture; And
The bicycle is inserted through a shaft tube provided at the front end of the sub-frame, the bicycle easy to change posture comprising a handle frame 47 is provided with a handle.

delete

3. The method according to claim 1 or 2,
The upper and lower inclined plate is a bicycle easy to change posture, characterized in that the tip is inclined at an angle to the front wheel direction with respect to the normal line of the center line of the handle frame.

3. The method according to claim 1 or 2,
The main locking member is rotatably coupled to the other side of the lower inclined plate by a hinge pin and caught on the other side of the upper inclined plate;
An elastic member disposed on the lower inclined plate to elastically pull an upper portion of the latch in the direction of the handle frame; And
And a lever which is connected to the latch and is coupled to the upper inclined plate by a lever to release the engagement state of the latch.

3. The method according to claim 1 or 2,
The auxiliary locking member includes an upper bracket protruding from the upper surface of the upper inclined plate;
A locking bar pivotally mounted to the upper bracket;
A spring disposed between one end of the locking bar and an upper surface of the upper inclined plate;
Easily change the bike including a lower bracket protruding on the bottom surface of the lower inclined plate coupled to the locking bar.