KR200258783Y1 - Scooter-like bicycle - Google Patents

Abstract

A scooter shaped bicycle having a simple power saving power transmission device is provided. The device includes a clock gear, a crank and two pedals, one end of which is coupled to the main frame and the other end of which is coupled to the bearing. The bicycle will exercise as the rider pushes the pedal in a reciprocating motion. The torque of the bike is the total length of the length of the crank and most of the pedal multiplied by the force exerted on the pedal. Moreover, it can reduce physical strength. In addition, since the rider is in a standing position, the total weight of the rider is applied to the pedal at the time of use. This saves leg strength. Moreover, there are no restrictions on the clothes of the occupants.

Description

Scooter Shaped Bike {SCOOTER-LIKE BICYCLE}

The present invention relates to a scooter, in particular to a scooter-shaped bicycle usefully saving power through a simple power transmission device.

Conventional bicycles are powered by a seated bicycle rider exerting force on the pedals to transmit movement through a power train consisting of a crank, chain wheel, drive chain, sprocket cluster and rear wheels coupled to the pedals. However, most of the force is exerted by the legs, which consumes a lot of physical strength. This is especially noticeable when people ride bicycles uphill. Therefore, it is desirable to provide a scooter-shaped bicycle that is usefully saving power through a simple power transmission device in order to overcome the aforementioned disadvantages of the prior art.

1A and 1B are side views schematically showing the operation of a power transmission device employed in a scooter-shaped bicycle according to the present invention.

1C is an enlarged view of a portion of FIG. 1B.

Figure 2 is a side view of a first preferred embodiment of a scooter-shaped bicycle according to the present invention.

3 is an exploded view of the power transmission device of FIG. 2;

4A, 4B and 4C are side views schematically showing the operation of the power transmission device of the bicycle of FIG.

Figure 5 is a side view of a second preferred embodiment of a scooter-shaped bicycle according to the present invention.

5A is an exploded view of the power transmission device of FIG. 5.

6 is a side view of a third preferred embodiment of a scooter shaped bicycle according to the present invention;

6A is an exploded view of the power transmission device of FIG. 6.

* Description of the symbols for the main parts of the drawings *

2: main frame 3: clockwise gear

4: bearing 5: crank

6: first pedal 8: second pedal

An object of the present invention is to provide a scooter-shaped bicycle usefully saving power through a simple power transmission device.

Another object of the present invention is to provide a scooter-shaped bicycle having a simple power transmission device, which makes the structure simpler.

Still another object of the present invention is to provide a scooter-shaped bicycle in which the cyclist is not restricted by clothes.

The above and other objects, features and advantages of the present invention will become apparent from the following detailed description with reference to the accompanying drawings.

(Example)

1a to 1c, the operation of the power transmission device of the scooter-shaped bicycle configured in accordance with the present invention is shown. This power transmission includes a main frame 2, a clockwise gear 3, a bearing 4, a crank 5, a first pedal 6, and a second pedal 8. The bottom of the first pedal 6 is coupled to a bearing 4 mounted to the crank 5. The crank 5 is also coupled to the axis of the clockwise gear 3. Moreover, one end of the first pedal 6 is pivotally coupled to the front end of the main frame 2. The axis of the clockwise gear 3 is rotatably coupled to a position near the rear end of the main frame 2. In FIG. 1A, the first pedal 6 is pressed by the user to move to a position with an angle of about 30 degrees with respect to the imaginary vertical line. Thus, the bearing 4 coupled to the first pedal 6 causes the crank 5 to rotate clockwise to a position that coincides with the vertical line (FIG. 1B). This position is important for the features of the present invention. That is, the clockwise gear 3 is rotated only when force is applied continuously or intermittently to the pedals 6, 8, as best shown in FIG. 1C. As can be seen in the figure, the bearing 4 and the crank 5 are perpendicular to the main frame 2. One end of the first pedal 6 is pivotally coupled to the tip of the main frame 2, while the bottom of the first pedal 6 is coupled to the periphery of the bearing 4 (ie, to the left of the vertical line). To form a tangent line). Such a tangential point is the force exerted on the first pedal 6 during travel. Thus, rightward rotational force is generated. As a result, the bearing 4 and the crank 5 rotate clockwise. On the other hand, if the tangential line is disposed on the left side of the vertical line, the clockwise gear 3 rotates counterclockwise.

As is known, the chain wheel is coupled to the crank, so the torque of a conventional bicycle is simply the length of the crank multiplied by the force exerted on the pedal. In comparison, the torque of a scooter-shaped bicycle of the present invention is the total length of the length of the crank and the length of most of the pedals, multiplied by the force exerted on the pedals. Therefore, the present invention is to save power.

2 and 3, a first preferred embodiment of a scooter shaped bicycle according to the present invention is a handle 10, a front wheel 20, a rear wheel 30, a main frame 40, and two. Pedals 50 and 60, wherein one end of the pedals 50 and 60 is pivotally coupled to the tip of the main frame 40 and the bottom of the pedal 50 near the other end is coupled to the bearing 520. do. The crank 510 is connected between the bearing 520 and the clockwise gear 500. Clockwise gear 500 meshes with counterclockwise gear 530. The counterclockwise gear 530 and the front gear 540 are both coaxially driven. Chain 550 interconnects front gear 540 and rear gear 560. Compared with the conventional bicycle, the scooter-shaped bicycle of the present invention has no saddle and the frame is very simple. This is one advantage of the present invention.

4A, 4B and 4C show the operation of the power transmission device of the scooter-shaped bicycle. In FIG. 4A, the user presses the pedal to cause the crank to rotate clockwise through the bearing. Therefore, when one pedal is in the lowest position, the other pedal is in the highest position (FIG. 4C). The front gear is thus rotated by the reciprocating motion of such pedals. As a result, the scooter-shaped bicycle moves forward. In operation, because the rider is in a standing position, the total weight of the rider is put on the pedals. This saves leg strength. Moreover, due to the present invention, the occupant is not restricted in dress. This is another advantage of the present invention.

5a and 5 show a third preferred embodiment of a scooter shaped bicycle according to the present invention. The feature of this embodiment is that the bottoms of the pedals 710 and 720 near the front end are coupled to the top of the plunger 770 which is fixed to the main frame 700, and another bottom of the pedal 710 near the rear end is cranked. Is coupled to a bearing 732 which is coupled to one end of 730. The other end of the crank 730 is coupled to the main frame 700. Long slots 740 are formed in the crank 730. Another bearing 702, which is coupled to the axis of the clockwise gear 750, is confined within the slot 740 so that the pivot of the crank 730 can cause the clockwise gear 750 to rotate. As a result, the rear gear 760 is rotated through the chain. In the drawing, reference numeral 734 denotes a long hole formed inside the crank 730, and the bearing 702 is inserted, and the bearing 702 reciprocates in the long hole according to the movement of the crank.

6a and 6 show a third preferred embodiment of a scooter shaped bicycle according to the present invention. A feature of this embodiment is that the front end of the pedals 810, 820 is coupled to the main frame 800, while its bottom near the rear end is coupled to a bearing 832 which is coupled to one end of the cranks 830, 840.

The other ends of the cranks 830 and 840 are coupled to the main frame 800. Crank 830 includes bearing 832 and channel 834. Channel 834 is formed under crank 830 (see FIG. 6). The pedal 810 moves downward by a human load, and the crank 830 also moves downward. The other bearing 802 and the clockwise gear 850 perform the movement for movement (see FIGS. 1A-1C and 4A-4C). Another bearing 802 coupled to the axis of clockwise gear 850 may be confined within channel 834 such that the pivot of crank 830 causes clockwise gear 850 to rotate. As a result, the rear gear 860 is rotated through the chain.

According to the present invention, it is possible to provide a scooter-shaped bicycle usefully saving power through a simple power transmission device, the structure becomes simpler, and the cyclist is not restricted by clothes.

Claims (14)

In the scooter-shaped bicycle having a power transmission device, A gear assembly comprising a clockwise gear, a rear gear coupled to the rear wheel and a chain interconnecting said clockwise and rear gear at a generally horizontal level, A crank having one end coupled to an axis of the clockwise gear and disposed parallel to the clockwise gear; And a pedal assembly including a first pedal and a second pedal, one end of which is coupled to the other end of the crank and the other end of which is coupled to the other end of the crank on both sides of the clockwise gear. The method of claim 1, And a bearing interconnecting the crank and each pedal. The method of claim 2, Scooter-shaped bicycle, characterized in that the shaft of the bearing is coupled to the crank. The method of claim 2, Scooter-shaped bicycle, characterized in that the bottom of each pedal is coupled to the top of the bearing. The method of claim 1, And the pedal assembly is disposed parallel to the main frame. The method of claim 1, Scooter-shaped bicycle, characterized in that the pedal assembly operates in a reciprocating motion. The method of claim 1, And the pedal assembly is coupled to the main frame at a position in front of or behind the clockwise gear. In a scooter-shaped bike with a power saver, The power saver, A gear assembly comprising a clockwise gear, a rear gear coupled to the rear wheel and a chain interconnecting said clockwise and rear gear at a generally horizontal level, A crank having one end coupled to the axis of the clockwise gear, the crank being disposed parallel to the clockwise gear, and Scooter-shaped bicycle, characterized in that placed on one side of the clockwise gear, one end is coupled to the other end of the crank and the other end is applied to the main frame. The method of claim 8, And a bearing interconnecting the crank and the means for applying the force. The method of claim 9, Scooter-shaped bicycle, characterized in that the shaft of the bearing is coupled to the crank. The method of claim 9, Scooter-shaped bicycle, characterized in that the bottom portion of each of the means for applying the force is coupled to the top of the bearing. The method of claim 8, And said means for applying said force is arranged parallel to said main frame. The method of claim 8, Scooter-shaped bicycle, characterized in that the means for applying the force operates in reciprocating motion. The method of claim 8, And said means for applying said force is coupled to said main frame at a position in front of or behind said clockwise gear.