KR20090128001A - Collapsible bicycle - Google Patents

Abstract

PURPOSE: A folding-type bicycle is provided to fold the bicycle quickly and easily by using a hinge portion of a dual hinge type which is operated in a vertical direction and a horizontal direction. CONSTITUTION: A folding-type bicycle comprises a front frame(11), a rear frame(13), a saddle frame(15), and a hinge portion(16). The front frame supports a front wheel. The rear frame supports a rear wheel. The saddle frame supports a saddle. The hinge portion comprises a hinge member(18) and a hinge shaft(20). The hinge member is connected to the rear frame. The hinge member is axis-connected to the circumference of a pedal assembly(17). The hinge member is rotated in a vertical direction. The hinge shaft is coupled to the end portion of the rear frame. The hinge shaft is rotated in a horizontal direction.

Description

Folding bicycle {Collapsible bicycle}

The present invention relates to a collapsible or unfoldable bicycle, and more particularly, to a folding bicycle that can be easily folded and easily transported and stored easily.

Recently, as environmental problems arise, the movement to use bicycles that emit no pollutants instead of fossil fuel transportation is gradually spreading.

Accordingly, investment in infrastructure such as bicycle lanes is increasing.

Despite the various positive aspects of bicycles, due to the rapid urbanization and population concentration, the residential form is changed to a group residential form such as an apartment, and the narrow storage space makes it difficult to store bicycles, and the green area gradually decreases. For outdoor hobby activities, such as bicycles, there is a problem of transporting bicycles away.

In order to solve this problem, conventionally manufactured after separating the front wheel and the rear wheel of the frame constituting the bicycle, connecting the two frames separated on both sides by a foldable portion, the folding bicycle that can fold or unfold the bicycle using the foldable portion By developing, it can be said that the problem caused by the volume of the bicycle during storage or transportation to some extent solved.

However, in the case of a conventional folding bicycle, in the process of folding or unfolding the front and rear frames, complicated operations such as turning a screw to fix the folding part are necessary, or the folding part is not firmly coupled so that the folding part is easily affected by an external impact. There are problems such as accidents happening while being solved.

In addition, in the related art, the front and rear wheels overlap each other, such that the folded parts overlap each other as if the front wheels and the rear wheels overlap each other, and thus the handling is very inconvenient. There is a problem that is very difficult to move and transport.

Accordingly, the present invention has been made in view of the above, by using a double hinge type hinge that operates in the vertical and horizontal direction when folding the bicycle to implement a new type of folding method by folding the front wheel and the rear wheel side by side. By doing so, it is possible to minimize the volume of the bike folded state, and in particular, to provide a folding bike that can be easily carried without effort while rolling the wheel when carrying the bike.

In order to achieve the above object, the folding bicycle provided in the present invention includes a front frame for supporting the front wheel, a rear frame for supporting the rear wheel, a saddle frame for supporting the saddle, and a hinge installed at each of the frames. A hinge member connected to the rear frame side and axially coupled around the pedal assembly to be rotatable vertically and vertically penetrating the hinge housing of the hinge member to the end of the rear frame. Combination is composed of a hinge shaft rotatable in the horizontal and horizontal direction, by rotating the rear wheel and the rear frame inclined in the vertical direction by using the hinge to rotate the rear wheel side by side to the front wheel side to be folded together. do.

Here, the folding bicycle preferably further includes a clamping plate that slides up and down along a guide rail installed at the lower end of the saddle frame and restrains the movement of the rear frame by fixing the stopper on the hinge member.

The folding bicycle provided in the present invention can be folded by folding the front and rear wheels side by side by turning the front wheel and the rear wheel up and down by using a hinge portion of a double hinge type that operates in the vertical direction and the horizontal direction, and then twists them sideways. By doing so, there is an advantage that can be quickly and easily folded into a size that is easy to store and transport the bicycle.

In addition, since the folding method of the bicycle is simple, anyone can easily operate and fold it, and in particular, since the front and rear wheels are folded in a state where the traveling direction is aligned, the folded bicycle can be rolled and moved, thus making it easy to move the bicycle to a desired place. There is an advantage that can be easily carried.

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

1 is a perspective view showing a hinge portion of a folding bicycle according to an embodiment of the present invention.

As shown in FIG. 1, the folding bicycle includes a basic form of a normal bicycle, for example, a front frame 11 including a front wheel (not shown), and a rear wheel (not shown). The rear frame 13 to be included, and the saddle and saddle frame 15, such as a frame structure that forms the basic skeleton of the bicycle.

The front frame 11, the saddle frame 15, and the rear frame 13 are configured to be combined with the pedal assembly 17 interposed therebetween, thereby forming a skeleton of one completed bicycle.

In such a bicycle, the folding structure can be implemented by the hinge portion 16, in particular, the folding structure provided in the present invention is basically the rear frame 13 is rotated in the vertical direction with respect to the pedal assembly 17 as the rear The frame 13 is rotated in the horizontal direction, or consists of a double hinge type in which the integrated front frame 11 and the saddle frame 15 are rotated in the horizontal direction, such a double hinge type includes a rear wheel The entire rear frame 13 is turned upside down so that the front wheels are rotated in a vertical direction toward the front wheel, and are stacked side by side, so that they can be folded quickly and easily in a size that is easy to store and transport.

To this end, the hinge portion 16, as shown in Figure 2, the hinge member 18 having a cylindrical body is axially coupled concentrically around the pedal assembly 17 to be rotatable in the vertical direction The hinge shaft 20 installed at the end of the rear frame 13 is hinged to the hinge housing 19 of the hinge member 18.

Accordingly, the rear frame 13 may be rotated vertically and vertically with the hinge member 18 as the axis, and at the same time, the rear frame 13 may be rotated in the horizontal and horizontal directions with the hinge shaft 20 as the axis. The entire rear wheel including (13) is rotated forward while being inclined in the vertical and horizontal directions so that it can be folded side by side to the side of the front wheel.

As another embodiment, the front frame 11 and the saddle frame 15 may be rotated without folding the rear frame 13 side to the left and right in the horizontal direction, and may be folded as described above.

To this end, vertical hinge shafts 24 are formed at the lower ends of the front frame 11 and the saddle frame 14, and the hinge shafts 24 at this time are axially coupled to the pedal assembly 17 side, so that the front The frame 11 and the saddle frame 14 can be rotated about the hinge axis 24.

Accordingly, the front frame 11 and the saddle frame 14 are rotated horizontally, that is, the front frame 11 and the saddle frame 14 are rotated in the vertical direction while the rear frame 13 and the rear wheel are flipped. By twisting the sideways slightly, the rear frame 13 and the rear wheel, and the pedal assembly 17 as a whole can be rotated while being flipped straight in the vertical direction.

Here, the degree of rotating the rear frame 13 in the horizontal direction is such that when the rear wheel is rotated in the vertical direction while the front wheel is flipped, the rear wheel can be positioned as close to the right side of the front wheel as possible without interference with the front wheel. Is enough.

Since the hinge portion 16 is normally used, that is, when the bicycle is normally used, the movement must be restricted so that the bicycle can be safely used, the hinge portion 16 is provided with a restraining means of a fastening and disengaging type.

For example, a guide rail 21 is formed at a lower end of the saddle frame 15, and a clamping plate 23 slidable up and down is installed on the guide rail 21, and the clamping plate 23 at this time is hinged. It serves to hang the stopper 22 formed in the member (18).

Accordingly, when the clamping plate 23 is lowered, the lower end of the plate hangs the rear side of the stopper 22, so that the clamping state can be maintained. As the state is released, it may become a free state.

Therefore, looking at the folding process of the folding bicycle configured as described above are as follows.

Figure 2a, 2b, 2c is a perspective view showing an example of the folding process of the folding bicycle according to an embodiment of the present invention.

As shown in Figs. 2A to 2C, a method of rotating the rear frame side in the horizontal direction is shown here.

To fold the bicycle, first lift the clamping plate 23 upward to release the restraint state of the hinge portion 16, and then hold the handle and lift the front frame 11 side to roll the rear wheel forward continuously. The entire frame 13 is flipped vertically downward.

At this time, the entire rear wheel and the rear frame 13 is rotated in the vertical direction by the hinge member 18 for rotating the pedal assembly 17, and with the hinge shaft 20 in the horizontal direction while rotating Overall, it rotates slightly sideways, making it easier to flip down.

When the rear wheel and the rear frame 13 are rotated to the front in a continuous operation in the folded state, the rear wheel can be folded so that the rear wheel is stacked side by side on one side of the front wheel.

In this folded state, it is possible to move the bicycle quickly and effortlessly while rolling the front and rear wheels, and to store it in that state.

Figure 3 is a perspective view showing another example of the folding process of the folding bicycle according to an embodiment of the present invention

As shown in FIG. 3, the front frame and the saddle frame side are rotated in the horizontal direction.

In order to fold the bicycle, first lift the clamping plate (not shown) to release the restraint state of the hinge portion 16, and then continuously hold the handle and lift the front frame 11 to roll the rear wheel forward continuously. The whole rear frame 13 is flipped vertically downward.

Accordingly, the rear wheel and the rear frame 13 as a whole are rotated in the vertical direction by the hinge member 18 which rotates the pedal assembly 17 in the axial direction, wherein the front frame 11 and the saddle frame 15 are hinged shafts. When the rear wheel and the rear frame 13 are rotated to the front in a continuous motion in a state where the horizontal wheel is rotated about 24 to the side, the rear wheel can be folded to be stacked side by side on one side of the front wheel.

In this folded state, it is possible to move the bicycle quickly and effortlessly while rolling the front and rear wheels, and to store it in that state.

1 is a perspective view showing a hinge portion of a folding bicycle according to an embodiment of the present invention

Figure 2a, 2b, 2c is a perspective view showing an example of the folding process of the folding bicycle according to an embodiment of the present invention

Figure 3 is a perspective view showing another example of the folding process of the folding bicycle according to an embodiment of the present invention

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

11: front frame 13: rear frame

DESCRIPTION OF SYMBOLS 15 Saddle frame 16 Hinge part 17 Pedal assembly 18 Hinge member 19 Hinge housing 20 Hinge shaft 21 Guide rail 22 Stopper 23 Clamping plate 24 Hinge shaft

Claims (3)

In a folding bike, Front frame 11 for supporting the front wheel, rear frame 13 for supporting the rear wheel, saddle frame 15 for supporting the saddle, and each of the frames 11, 13, and 15 The hinge portion 16 is installed in the meeting place, the hinge portion 16 is connected to the rear frame 13 side, the hinge member rotatably coupled to the circumference of the pedal assembly 17 and rotatable in the vertical direction 18 and a hinge shaft 20 rotatably coupled to an end of the rear frame 13 while being vertically coupled to the hinge housing 19 of the hinge member 18 so as to rotate in a horizontal direction. A folding bicycle characterized in that the rear wheel and the rear frame are rotated while being inclined in the vertical direction by using a part to fold the rear wheel side by side with the front wheel side by side. 2. The movement of the rear frame 13 according to claim 1, wherein the rear frame 13 is moved by fastening the stopper 22 in the hinge member 18 up and down along the guide rail 21 installed at the lower end of the saddle frame 15. Folding bicycle further comprising a clamping plate (23) for restraining. The front frame 11 and the saddle frame 14 are coupled to the pedal assembly 17 side by a vertical hinge shaft 24 to rotate about the hinge shaft 24. Folding bike characterized in that it can be.

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