KR200205702Y1 - Combined use bicycle for water and earth - Google Patents

Abstract

The present invention relates to an amphibious bicycle, a U-frame that is installed in the bicycle frame near the front wheel to be able to rotate at a predetermined angle, as needed, can be raised or lowered by the friction force that is installed on the support near the rear wheel and in contact with the rear wheel. Friction wheels rotated, propellers generating propulsion while rotating by receiving power from the friction wheels, second power transmission means for transmitting the power of the friction wheels to the propellers, and connecting the U frame and the propellers according to the rotation angle of the U frame Consists of a connecting line that rotates the propellers, and is easy to assemble and disassemble, easy to steer, has excellent supplemental comfort, good ride comfort, water does not splash upwards, and uses a belt instead of gears. Provides the effect of smoother redirection.

Description

Amphibious bicycle {combined use bicycle for water and earth}

The present invention relates to an amphibious bicycle, and more particularly to an amphibious bicycle that can be used as a boat in the sea or river as well as ride on a land as a general bicycle.

In general, an amphibian bike is designed to ride on land, sea, river, lake, etc., and it is used to generate a support and propulsion for connecting a body and a body in the form of a bicycle and an air tube. It consists of a power transmission means for transferring the rotational force of the propeller and the wheel to the propeller, and steering means for changing the direction. These amphibious bicycles have been developed by the present applicant and filed as Utility Model Registration Application Nos. 96-313, 96-1937, and 98-13266.

However, the conventional amphibious bike has a complicated structure and complicated assembly and disassembly process when converting its use, and in particular, the power transmission to the propeller is geared so that the force due to the change of the propeller's angle is reversely transmitted to the wheel when the direction is changed. There was a problem such as a break in the driving force.

The object of the present invention is to provide an amphibious bicycle with excellent propulsion performance, which is easy to assemble and disassemble each part when switching the use, and has excellent steering ability, supplementary property, and especially, without breaking of the driving force.

1 is a perspective view of an amphibian bicycle according to the present invention,

Figure 2 is a rear perspective view of the amphibian bike of Figure 1,

3 is a view showing a state in which the folding body mounted on the bicycle,

4 is a perspective view of the bicycle removed from the floating body,

5 is a perspective view of the floating body and the support,

6 is a side view of the amphibian bicycle according to the present invention,

7 is a view showing an elastic member,

8 is an exploded perspective view for explaining the installation structure of the U-frame,

9 is a perspective view showing a state in which the U-frame is installed,

10A is a left side view of the hub nut,

10b is a cross-sectional view of the hub nut,

10c is a right side view of the hub nut,

Figure 11a is a left side view of the connecting pin,

11b is a front view of the connecting pin,

11c is a plan view of the connecting pin,

12 is a rear perspective view showing the installation state of the propeller and the supplementary housing and the friction wheel,

13 is a side perspective view showing the installation state of the propeller and the supplementary housing and the friction wheel,

14 is a cross-sectional view showing a friction wheel,

15A is a front view of the adapter,

15B is a plan sectional view thereof;

Figure 16a is a cross-sectional view showing a fixing nut,

16b is a sectional view of a flat nut,

17A is a front view of one side bracket,

17B is a plan view thereof;

18a is a front view of the other side bracket,

18B is a plan view thereof.

Explanation of symbols on the main parts of the drawings

100: amphibious bicycle 110: floating

120: bicycle 122: rear wheel

130: support 131: connecting rod

132, 133: spring 134: lifting bar

136: front stay 137: hub nut

138: connecting pin 140: U frame

141: connection line 150: friction wheel

160: propeller 170: supplementary housing

180: slider 190: second power transmission means

210: adapter 220: fixing nut

229: flat nut 230, 230a: bracket

An object of the present invention is a pair of floats arranged at predetermined intervals, the support for connecting the two, the removable frame is installed on the support and for rotating the bicycle frame and rear wheels connecting at least two or more wheels and two wheels In an amphibian bicycle provided with a bicycle having a first power transmission means for transmitting a pedal and pedal power to a rear wheel so that it can be ride on land or at sea, if necessary, a predetermined angle can be rotated in a bicycle frame near a front wheel. U frame is installed to raise or lower as needed, the friction wheel is installed on the support near the rear wheel and rotated by the friction force in contact with the rear wheel, propeller to generate the propulsive force while rotating by receiving power from the friction wheel, Second power transmission means for transmitting the power of the friction wheel to the propeller And by connecting the U frame and the propeller can be achieved by the amphibian bike, characterized in that it comprises a connecting line for rotating the propeller according to the rotation angle of the U frame.

The upper U frame is connected to the support is connected to the elastic member that pulls the U frame forward, the friction wheel is supported by the propeller to support the propeller rotatable and maintains the bendability is installed at a predetermined angle left and right pivotable, connecting line In the U frame, it is recommended that the two strands are connected to the supplemental housing in the form of an X.

The friction wheel is composed of a shaft portion formed at the center between the friction portion and the two friction portions disposed facing each other at a predetermined interval above the water surface, and is coupled to a slider installed to be movable back and forth on the support, and the second power transmission means is connected to the shaft portion. It is preferable to use a time belt that connects the propeller shafts in a 90 ° twisted state.

The upper supplemental housing supports the propeller's axis of rotation, provides a hollow passage for the time belt to catch on the axis of rotation of the propeller, protrudes below the propeller, and is pivoted backward by the lifting bar to be lifted above the water surface. It is good.

The above pedal may be further configured to include a detachable oar as needed.

The upper body is an air injection rubber tube, and the support is directly connected to the rubber tube, it is good to have a configuration fixed by the C-shaped snap ring.

Can be fixed to the hub of the upper bike and is rotated after passing through the hub nut and the through groove formed in the outer side of the hole on one side is formed on the other side of the locking pin and the engaging pin on the inner side of the hub nut, the end of the front stay If the configuration further comprises a connecting pin having a pin hole for connecting with the assembly and disassembly is easy.

In addition, a connection member is installed between the rear wheel shaft and the floating body of the bicycle through a bracket fixed by a fastening nut coupled to the rear wheel shaft and a flat nut coupled to the fastening nut, and passes between the connection member and the frame of the lower part of the saddle. It is more preferable to further include an adapter having a groove and a hollow part, and a connecting pin having a pin hole for connecting to an end of the backstay and a catching pin and a catching pin caught on the inner side of the adapter and being connected to the end of the backstay. Do.

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

1 is a perspective view of an amphibian bicycle according to the present invention, FIG. 2 is a rear perspective view of the amphibian bicycle of FIG. 1, FIG. 3 is a view showing a state in which a folding body is mounted on a bicycle, and FIG. 5 is a perspective view of the floating body and the support.

As can be seen in Figures 1 to 5, the amphibian bicycle 100 according to the present invention is provided with a pair of floating body (110). The floating body 110 is to provide a buoyancy buoyancy so that people riding on the bicycle 120 and the bicycle 120 is mounted on the water, it is good to use an air tube. This float 110 is also commonly referred to as a pontoon. The floating body 110 is used as shown in Figures 1 and 2 when the air is used in the water, and if you want to use like a general bicycle on land, fold the air and fold as shown in FIG. Carry it on.

As shown in the drawing, the support 130 is installed between the two floating bodies 110. The support 130 is to connect the two bodies 110 to each other, and to support the bicycle 120 to the body 110. Conventionally, in order to install the support body 130 on the body 110, the support body 130 was wound around the body body 110 around the body body 110 and the support body 130 was installed in the state in which it was connected to each other. In this case, all of the support body 130 Since the support points restrain each other, when the body 110 rides a wave, the shaking was severe. In order to improve this, the present invention reinforces a portion to which the support 130 is connected and connects the end of the support 130 directly to the floating body 110 so that each support point has a certain degree of freedom. That is, even if one side of the body 110 is shaken by the waves, the support body on the other side can be hardly moved because the body 110 is bent. Therefore, the amphibian bicycle 120 according to the present invention is very resistant to waves compared to the conventional one is very less shake. As the support 130, a frame near the front stay 136 and the saddle 124 that supports the connecting rod 131 for directly connecting the two bodies 110 and the front wheel 121 of the bicycle 120 to the body 110. It consists of a backstay 132a for supporting the 125 to the connecting member 139 and a connecting member 139 for supporting the rear wheel 122 to the body 110. The front stay 132 is made by the hub nut 137 and the connecting pin 138 described later, the backstay 132a is made by the adapter 210 and the connecting pin 138, and the connecting member 139 is the fixing nut. It is coupled to the bicycle 120 through the brackets 230 and 230a fixed to the rear wheel shaft by the 220 and the flat nut 229, which will be described in more detail later.

As shown in FIG. 1 and FIG. 2, the bicycle 120 is mounted on the support 130. 3 and 4, the bicycle 120 is used as a general bicycle in the land, and as shown in FIGS. 1 and 2, the driving force can be generated and steered in the water as shown in FIGS. 1 and 2. The wheels 121 and 122 and the two wheels 121 and 122 are connected to each other, and the power of the pedal 126 and the pedal 126 for generating power and the frame 125 on which the handle 123 and the saddle 124 are installed. It consists of a first power transmission means 127 for transmitting to the rear wheel (122). Of course, it is desirable to provide an oar to the pedal 126. In this regard, see Utility Model Publication No. 97-51267 (2), and the installation of a paddle on the pedal will help to move forward and, if necessary, to make it possible to reverse. Can also be used.

As shown, the U frame 140 is installed in the frame 125 of the bicycle 120 near the front wheel 121. The U-frame 140 is preferably installed in the hub 128 of the bicycle 120 to be rotated in place. That is, it may be rotated as needed to raise the hub 128 upward or downward to the hub 128. The U frame 140 is for steering, and when the steering wheel 123 is turned to one side to change the driving direction, the U frame 140 returns together. The U-frame 140 is lowered to the hub 128 to be used for steering, as shown in FIG. This is described in more detail later.

As can be seen in Figure 5 the amphibian bicycle 120 according to the present invention is provided with a friction wheel 150. The friction wheel 150 is in contact with the rear wheel 122 is rotated by the friction force, it is good to be arranged above the water surface. Only by squeezing the water on the rear wheel 122 can be written to prevent the water from splashing. This friction wheel 150 will be described in more detail later with reference to FIGS. 12 to 15.

The propeller 160 is provided below the friction wheel 150. The propeller 160 receives the power from the friction wheel 150 is rotated by the rear wheel 122 of the bicycle 120 to generate a driving force while rotating. Of course, the second power transmission means should be installed between the friction wheel 150 and the propeller 160. The second power transmission means is for transmitting the rotational force of the friction wheel 150 to the propeller 160, and because the rotation axis is perpendicular to each other should be able to transfer power by changing the direction. As the second power transmission means, a time belt made of rubber or the like is suitable. Unevenness is formed in the form of a thread along the inner surface of the time belt, and the thread of a shape corresponding to the rotating shaft of the friction wheel 150 and the propeller 160 should be formed.

The amphibian bicycle 100 according to the present invention is provided with a supplemental housing 170. The supplementary housing 170 is connected to the U-frame 140 through the connecting line 141 to accurately maintain the course when changing the driving direction. Connecting line 141 is preferably connected to the X shape as shown in Figure 5 so that the propeller 160 is rotated in the direction to turn the handle 123 to be able to change direction in that direction. Of course, the U frame 140 is pulled forward by the elastic member in the lowered state, the state can be seen in Figure 9. This will be described in more detail with reference to FIGS. 6 to 9.

Figure 6 is a side layout view of the amphibian bicycle according to the present invention, Figure 7 is a view showing an elastic member, Figure 8 is an exploded perspective view for explaining the installation structure of the U-frame, Figure 9 shows a state where the U-frame is installed Perspective view.

As can be seen in Figures 6 to 9, the U-frame 140 is installed to be rotated in place on the hub bolt 129 installed on the hub 128 of the frame 125 near the front wheel 121 of the bicycle 120. Washer 129a inward, hub nut 137 is coupled to the outside. Hub nut 137 can be seen in Figure 10.

The hub nut 137 is connected to the front stay 136 through a connecting pin 138. The front stay 136 and the connecting pin 138 are connected by a universal joint, and the connecting pin 138 is shown in FIG. You can see it.

As can be seen in FIG. 9, one side end of the U frame 140 is pulled downward through the elastic member 132 hanging on the support 130. The elastic member 132 is shown in FIG. Between the U frame 140 and the supplemental housing 170, the connecting line 141 in the X-shape takes. That is, the U frame 140 maintains the state of pulling the supplementary housing 170 toward the front through the connecting line 141, and when the handle 123 is turned to the right, the left part of the U frame 140 is moved forward. While pulling the right part of the bodhisattva housing 170 forward. Accordingly, the supplementary housing 170 is rotated in a counterclockwise direction, and when the propeller 160 generates a driving force in the state, it acts as a force to push the rear center of the amphibian bicycle 100 according to the present invention to the left. Amphibious bicycle 100 is to change the direction to the right. Of course, the supplementary housing 170 provides supplementaryness so that it can go straight in usual times, and prevents a sudden change of direction because it is subjected to water resistance in a slightly rotated state.

As can be seen in Figure 6, the propeller housing 170, the propeller 160 is installed is installed on the friction wheel 150, it is rotatably installed to the front, rear, left, back within a predetermined angle range. In this state, the lower end of the support point is pulled forward by the elastic member 132 and the connecting line 141, and the upper end of the support point is pulled forward by the other elastic member 133. Of course, the angle at which the supplementary housing 170 is pulled forward by the connecting line 141 is limited, and may be sufficiently rotated backwards. The supplementary housing 170 may be lifted to the rear using the lifting bar 134.

10A is a left side view of the hub nut, FIG. 10B is a cross-sectional view of the hub nut, and FIG. 10C is a right side view of the hub nut.

10A to 10C, the hub nut 137 has a spiral 137a formed along one inner circumferential surface of the hub nut 137 to be fixed to the hub bolt 129 installed at the hub of the bicycle 120, and the other hole. 137b is a straight through-groove 137c to the outside. Of course, a larger hollow portion 137d than the hole 137b should be formed therein.

11A is a left side view of the connection pin, FIG. 11B is a front view of the connection pin, and FIG. 11C is a plan view of the connection pin.

That is, when the connecting pin 138 is inserted and rotated through the through groove 137c of the hub nut 137, the catching pin 138a and the catching pin (which are caught on the inner surface of the hollow part 137d of the hub nut 137) 138a) formed on the other side and having a pin hole 138b for connecting to the end of the front stay 136 described above in the form of a universal joint.

That is, the hub nut 137 described with reference to FIGS. 10A to 10C is coupled to the hub bolt 129 of the bicycle 120, and the connecting pins 138 of FIGS. 11A to 11C are pins to the front stay 136. Rotate the insertion pin 138a of the connecting pin 138 by inserting the through-groove 137c in the coupled state, and the other end of the front stay 136 is provided on the auxiliary tool 111 installed on one side of the floating body 110. Inserting and engaging the C-shaped snap ring can be installed the front stay 136. That is, the installation process of the front stay 136 becomes very simple.

12 is a rear perspective view showing an installation state of the propeller, the supplementary housing and the friction wheel, FIG. 13 is a side perspective view showing an installation state of the propeller, the supplementary housing and the friction wheel, and FIG. 14 is a sectional view showing the friction wheel.

As shown in FIG. 12, the slider 180 is installed to move back and forth near the center of the rear connecting rod 131 that connects the two bodies 110, and is urged forward by the elastic member 133. The friction wheel 150 is attached to this slider 180 so that it can rotate in place.

As can be seen in Figure 14, the friction wheel 150 is composed of a shaft portion 156 formed in the center portion between the two friction portion 151 and the two friction portion 151 of the disc shape facing each other at a predetermined interval, The shaft portion 156 should be formed with a thread 157 to be bitten by the time belt.

The friction wheel 150 is provided with a supplementary housing 170, and the propeller 160 is rotatably installed at the supplementary housing 170. Since the propeller 160 should be able to rotate left and right by a predetermined angle for steering, the supplementary housing 170 should be able to rotate left and right by a predetermined angle. In order to do so, the slide 180 may be installed to be rotated at a predetermined angle, or the bracket 171 connecting the friction wheel 150 and the supplemental housing 170 should be elastically allowed to allow left and right twisting. Of course, the supplementary housing 170 is limited to be rotated forward by a predetermined angle or more forward, even if subjected to the pulling force of the connecting line 141, it can be rotated to the rear can be lifted on the surface when not in use. It is supposed to be. In addition, the supplementary housing 170 should provide a hollow passage so that the power transmission member can be installed between the friction wheel 150 and the propeller 160, which combines the lifting bar 134 as shown in FIG. It is preferable. Moreover, it protrudes below rather than the propeller 160. This is to protect the propeller 160 by the hook housing 170 is first caught and lifted to the rear while moving forward in shallow water. The planar shape of the supplemental housing 170 is preferably in the form of a streamlined shape that is pointed at the front and widened toward the rear.

The second power transmission means 190 is installed between the friction wheel 150 and the propeller 160. It is preferable to use a time belt having a thread formed on the inner circumferential surface, and is connected between the shaft portion 156 of the friction wheel 150 and the propeller shaft in a 90 ° state to transfer the power of the friction wheel 150 to the propeller 160. To pass.

Fig. 15A is a front view of the adapter, and Fig. 15B is a plan sectional view thereof.

That is, the adapter 210 as shown in FIGS. 15A and 15B is assembled to face each other at the lower side of the saddle lower frame of the bicycle, and then tightened and fixed by bolts, and the connection pin 138 as shown in FIGS. 11A to 11C. When the engaging pin 138a is sufficiently inserted through the through-groove 212 in the state coupled to the end of the backstay 132a, and then rotated by a predetermined angle in the hollow part 214, the locking pin 138a is the inner circumferential surface of the adapter 210. The other end of the backstay 132a may be fixed to the connecting member 139 in the state.

Figure 16a is a cross-sectional view showing a fixing nut, Figure 16b is a cross-sectional view of the flat nut, Figure 17a is a front view of one side bracket, Figure 17b is a plan view thereof, Figure 18a is a front view of the other bracket, Figure 18b is a plan view thereof.

As shown in FIGS. 16A to 18B, the fixing nuts 220 having the spiral 222 formed on the inner circumferential surface thereof are respectively screwed to both sides of the rear wheel shaft of the bicycle, and in this state, FIGS. 17A and 17B Insert the bracket 230 shown in the protrusion of the fixing nut 220 through the through hole 232, and fasten the bracket 230 by fastening the nut 229 as shown in Figure 16a and 16b from the outside. It is only necessary to fix one end of the aforementioned connection member 139 through the bracket 230.

On the other side of the bicycle, the bracket 230a is fixed by inserting another bracket 230a as shown in FIGS. 18A and 18B through the through hole 232a and fastening the nut 229 from the outside thereof. One end of the connecting member 139 may be fixed to the bracket 230a.

As can be seen from the above description, when using the amphibian bicycle according to the present invention, the assembly and disassembly are easy due to the U-frame that can be raised or lowered as needed, and the connecting line 141 is connected in an X shape. It is easy to steer as the steering wheel is turned in the direction of turning the handle, and it is also excellent in the supplementary housing due to the supplementary housing.

In addition, unlike the related art, by connecting the connecting rod and the front stay directly to the rubber tube without using a rigid body surrounding the rubber tube, each support point has a certain degree of freedom at the other support point, so that even if the waves hit hard, the shaking is less. This is good.

In particular, the friction wheel is installed on the slider can be moved back and forth a predetermined distance so that wheel deformation does not occur, and water is not splashed upwards by pressing the rear wheel in the state installed on the water surface.

In addition, due to the inertia of the wheel, the running speed in the water is not cut off, and the belt is used instead of the gear to solve the problem of being transferred from the gear to the wheel in the reverse direction. .

In addition, disassembly and assembly are very easy when changing the usage by using hub nut, connecting pin and snap ring.

Claims (11)

A pair of floats arranged at predetermined intervals, a support connecting the two floats, a detachably mounted on the support, a bicycle frame connecting the at least two wheels and the two wheels, and a pedal for rotating the rear wheel; In an amphibian bicycle having a bicycle having a first power transmission means for transmitting the power of the pedal to the rear wheel to ride on land or sea as needed, A U frame installed at a predetermined angle on the bicycle frame near the front wheel to be able to raise or lower as needed; A friction wheel rotatably installed on the support near the rear wheel and rotated by a frictional force contacting the rear wheel; A propeller generating propulsion while rotating by receiving power from the friction wheel; Second power transmission means for transmitting power of the friction wheel to the propeller; And An amphibious bicycle comprising a connecting line for connecting the U frame and the propeller to rotate the propeller according to the rotation angle of the U frame. According to claim 1, The U-frame is connected to the support is connected to the elastic member for pulling the U-frame forward, The friction wheel is provided with a supplementary housing for supporting the propeller rotatably and maintains the bendability An amphibious bicycle is installed at an angle and rotates, and the connecting line is connected to the supplemental housing in the form of X-shaped two strands in the U-frame. According to claim 1 or claim 2, wherein the friction wheel is a friction portion disposed facing each other at a predetermined interval above the water surface and the shaft portion formed in the center portion between the two friction portions, the slider is provided on the slider so as to be movable back and forth on the support; And the second power transmission means is a time belt for connecting the shaft portion and the propeller shaft in a twisted state by 90 °. The propeller housing of claim 2, wherein the supplemental housing supports a rotation axis of the propeller and provides a hollow passage so that the time belt can be caught by the rotation axis of the propeller, protrudes downwardly from the propeller, and rotates backward by a lifting bar. Amphibian bike, characterized in that configured to be lifted above the water surface. The amphibian bicycle according to claim 1 or 2, further comprising a detachable oar to the pedal as necessary. The amphibian bicycle according to claim 1 or 2, wherein the floating body is an air injection rubber tube and the support is directly connected to the rubber tube and fixed by a C-shaped snap ring. The hook of claim 1 or 2, wherein the hub nut is fixed to the hub of the bicycle and rotates after passing through the hub groove and the hub nut having a passage groove formed outside the hole on one side thereof, and being caught by the inner surface of the hub nut. The amphibian bicycle further comprising a connecting pin having a pin hole formed at the other side of the pin and the engaging pin and connected to the end of the front stay. According to claim 1 or 2, Between the rear wheel shaft and the floating body of the bicycle connection member is installed through a bracket fixed by a fastening nut coupled to the rear wheel shaft and a flat nut coupled to the fastening nut is installed, Between the connecting member and the frame of the lower saddle, an adapter having a through groove and a hollow portion, and a connecting pin having a pin hole for engaging with the end of the backstay and the engaging pin and the locking pin which are caught on the inner side of the adapter, is further connected. An amphibian bike comprising: According to claim 1, It further comprises a connector of the front stay to connect between the float and the bicycle of the amphibian bicycle, the connector of the front stay is fixed to the hub of the bicycle and one side is formed with a passage groove outside the hole And a hub pin, and a connecting pin having a pin hole for connecting to the end of the front stay, the hook pin being formed on the other side of the hub pin and the hook pin being rotated after passing through the passage groove, and the other end of the front stay. Amphibious bike. The propeller housing of claim 2, wherein the supplemental housing supports the axis of rotation of the propeller and provides a hollow passage so that a predetermined time belt can be caught by the axis of rotation of the propeller, and protrudes downwardly from the propeller. An amphibious bicycle, characterized in that it has a streamlined planar shape that widens gradually. According to claim 1, The amphibian bicycle is provided with a power transmission means for transmitting the power of the friction wheel to the propeller that is rotated in contact with the rear wheel and the rear wheel is rotated, the power transmission means is the shaft portion of the friction wheel An amphibious bicycle, characterized in that the time belt made of a stretchable material caught in a closed curve twisted by a predetermined angle between the rotation axis of the propeller.