KR101209898B1 - Detachable a bicycle powered catamaran - Google Patents

Abstract

PURPOSE: A catamaran driven by a detachable bicycle is provided to stop and drive aquatic play equipments on the water and to be driven by mounting a general bicycle on the catamaran without the structural change of the bicycle. CONSTITUTION: A catamaran driven by a detachable bicycle comprises a pair of buoyancy members(2), a base frame(3), a front wheel mounting part(41), a recessed groove, a rotary shaft(43), a bearing, a steering plate(44), a driving belt(51a), a driven shaft(52), impellers(53), and a chain(57). The base frame is fixed between the buoyancy members. The front wheel mounting part is protruded upward from the front of the base frame. The recessed groove is formed in the front wheel mounting part. The rotary shaft vertically penetrates the base frame from the bottom of the front wheel mounting part. The bearing is installed between the rotary shaft and the base frame. The steering plate is installed at the bottom of the rotary shaft in a direction same as a front wheel(a) of a bicycle(A). The driven shaft is interlocked with the driving belt and a pulley. The impellers are installed in both ends of the driven shaft to rotate with the driven shaft.

Description

Detachable a bicycle powered catamaran

The present invention is a catamaran driven by a detachable bicycle, which will be described in more detail so as to steer and propel a water ride in the water by manipulating each part of the bicycle after mounting a general bicycle so as to move as desired. A catamaran driven by a removable bicycle.

In general, jet skis and water boats, which are used for swimming in lakes, rivers, and seas, have their own steering systems and engines. Due to the high cost of equipment, the manufacturing cost is so high that it is difficult for ordinary users to purchase and use it, and because it moves at high speed in the water, the risk of life can be seriously injured or a considerable injury can be caused. Since the use of fuel for driving the engine has a number of problems such as waste of energy and water pollution due to the use of the engine, the water rides that allow steering and propulsion by the user's manpower without using an engine, etc. The situation is being developed and used together with the literature.

Water play equipment for the following prior art document can be promoted and steered by manpower in the water, such as swimming pools, lakes, rivers, seas, etc. to reduce the manufacturing cost and to go in the desired direction, As it is driven, it can double the safety of water play, and it is equipped with a propulsion device and a steering device so that various water rides, such as a tube body using a non-power boat or a synthetic resin float, are steered in a forward direction and steered in a desired direction. As the water playground equipment, as described in Republic of Korea Utility Model Publication No. 20-0452872, only some frames of the bicycle except for the wheels of the bicycle are fixed between buoyancy members on both sides to transfer power of pedals, sprockets and chains of the bicycle frame. A drive unit having propulsion means connected by means; It consists of a steering part with a steering piece installed at the bottom of the handle pivot shaft of the bicycle frame, which integrates a part of the frame of the bicycle into the water play equipment, but it can be used as a water play equipment, but the bicycle cannot be used independently on land.

In addition, as described in Korean Patent Laid-Open Publication No. 10-2011-0126990, the buoyancy body is rotatably installed on the front wheel portion of the lower portion of the handle portion, and the buoyancy body is rotatably installed on the rear wheels on both rear sides of the main body portion, so that it can be mounted at the same time in the water and on land. The left and right boat members that are divided and combined to the left and right as described in the Republic of Korea Patent Publication No. 10-0952739 to be used to be rotated in the bicycle to be used as a boat in the water when rotating the left and right boat members to the bottom and the left and right boat members Although amphibious bicycles and water playground equipment were developed to be used as bicycles on land when rotating to the top, general land bicycles cannot be applied as they are for water and land use. Change the structure of the front and rear wheels It must be installed or connected in the right and left pivoting member boat is difficult to manufacture haejyeoseo its structure is very complicated, it had a number of problems such as that the manufacturing costs advance.

KR 20-0452872 Y1 March 16, 2011 KR 10-2011-0126990 A 2011. 11. 24. KR 10-0952739 B1 2010. 4. 6.

In the present invention, to solve the above problems of the prior art was to create a new technology, the present invention by making a catamaran, which is a water ride for the water separate from the bicycle, the conventional bicycle used in the land without changing the structure as it is It is designed to allow the catamaran to operate as desired when operating the handlebars and pedals of the bicycle after installation.The base frame is installed between the buoyancy bodies on both sides, and the front and rear wheels of the bicycle are settled before and after the base frame. The steering wheel is steered by left and right pivoting of the front wheels.When the pedal is rotated, the impeller is rotated by the rotation of the rear wheels to create a propulsion force. Completion of the present invention with the problem to be solved by the invention in providing The.

In the present invention as a specific means for solving the above problems of the invention constitutes a catamaran line driven by a detachable bicycle, the catamaran line is provided with a buoyancy body having a buoyancy on both sides so as to protrude upward from the water, both sides buoyancy body Connected and installed as a base frame, the front and rear of the rotating frame and the rotating shaft is installed integrally to the lower part of the front wheel and the front wheel mounting in which the lower part of the front wheel of the bicycle is integratively coupled bearing supported so as to rotate freely in the base frame A steering means comprising a steering plate fixed to a lower portion, and a driving belt installed at the rear of the base frame in such a manner that the lower side of the rear wheel contacts the lower side of the rear wheel when the rear wheel is rotated so that the rear wheel rotates freely in the base frame when the rear wheel is rotated. A pair of drive rollers and the Copper belt or a driven roller of the pair is characterized in that it includes a driving means consisting of a fixed impeller installed respectively on both ends of a driven shaft that is installed connected to the interlocking means.

In addition, the catamaran of the above configuration is rotatably installed one end to the base frame, the other end is coupled to each frame constituting the frame of the bike mounted on the catamaran by a couple of fixed to prevent the bike and the catamaran to separate or fall arbitrarily Further installation means, or characterized in that it is further installed towing means for installing the bicycle to be pulled more strongly on the catamaran.

According to the specific means for solving the above problems, the catamaran line driven by the detachable bicycle of the present invention, the front wheel of the bicycle is settled in the front so that the general bicycle can be mounted to receive the water by adjusting the steering means when operating the handle of the bicycle It is possible to adjust the direction at the rear, and the rear wheel of the bicycle is settled at the rear, so that the propulsion can be promoted from the water by the operation of the propulsion means when the pedal is operated.The operation of the propulsion means is stopped at the water due to the operation of the rear wheel brake of the bicycle. It is possible to keep and run the water rides as desired in the water, such as to maintain the.

According to the present invention described above can be driven by mounting a general bike directly to the catamaran without changing the structure, at this time steering and propulsion the catamaran as desired by the user's manpower, so no expensive engine or steering device is required, significantly reducing manufacturing costs If the bicycle is mounted as it is without changing the structure and then separated from the catamaran, it can be used as a bicycle directly on the land, and the installation and detachment of the bicycle can be performed more easily, improving the convenience of use, and used on the land. Existing bicycles can be applied immediately, the expected effect is a great invention.

1 is an exemplary view of a state equipped with a bicycle on a catamaran of the present invention
Figure 2 is a front view showing a preferred example of the present invention
3 is a plan view showing a preferred example of the present invention
Figure 4 is a side view showing a preferred example of the present invention
Figure 5 is a cross-sectional view showing a detailed configuration of the steering means of the present invention
Figure 6 is a cross-sectional view showing a detailed configuration of the propulsion means of the present invention
Figure 7 is a perspective view of the drive belt of the propulsion means of Figure 6
Figure 8 is a cross-sectional view showing another example of the propulsion means of the present invention
Figure 9a is a three-dimensional view showing a first example of the drive roller of the propulsion means of Figure 8
Figure 9b is a three-dimensional view showing a second example of the drive roller of the propulsion means of Figure 8
Figure 9c is a three-dimensional view showing a third example of the drive roller of the propulsion means of Figure 8

Hereinafter, the present invention will be described more specifically with reference to the drawings.

The present invention is equipped with a conventional bicycle (A) used in the land as shown in Figure 1 by detachable bicycle to provide a driving force to steer and propel as desired in the water by manipulating the parts of the bicycle (A) ( A catamaran (1) driven by A) relates to a catamaran (1), wherein the catamaran (1) of the present invention is buoyant with buoyancy to float upwardly in the water phase as shown in FIGS. It has a sieve (2) on both sides, and the component to install the bicycle (A) with a function to hold and connect the buoyancy body (2) between a pair of buoyancy body (2) spaced on both sides to be installed Connect and install the base frame (3) having a function.

In the base frame 3, in the plan view of FIG. 3, both ends of the front support 31 and the rear support 32 are respectively fixedly installed at the front and the rear of the buoyancy body 2 on both sides, respectively, and the front support 31 is Between the rear support 32 and the longitudinal support in the longitudinal direction, between the horizontal support 33a and the horizontal support 33a, a plurality of vertical support 33b are respectively provided for the member for mounting the bicycle A. It is configured to allow the installation of the field and the function of the footrest when the user rides down.

The steering means (4) is provided in front of the base frame (3) to be able to adjust the direction in the water by operating the handle (A1) of the bicycle (A) mounted on the catamaran (1), the steering means ( 4 is a front wheel mounting portion 41 having an inlet groove 42 which is upwardly open so that the lower portion of the hub of the front wheel a of the bicycle (A) as shown in FIG. 5 has an upper portion of the base frame 3. Is configured to protrude to, the lower portion of the front wheel mounting hole 41 is pivotal shaft 43 is installed to be supported by the bearing (10) to the front support 31 to freely rotate through the front support 31 up and down integrally It is configured, the lower end of the rotating shaft 43, when the catamaran line (1) is placed in the water, the bicycle (A) so as to adjust the traveling direction of the catamaran line (1) by the left and right rotation of the rotating shaft 43 A steering plate 44 in the form of a plate having the same direction as the front wheel a is fixedly installed.

At this time, the front wheel mounting portion 41 is composed of a pair of diaphragms 45 having a crescent form on both sides, the bicycle (A) front wheel (a) interposed between the diaphragm 45 at the lower edge of the pair of diaphragms 45. A plurality of fasteners 46, also known as "quick release levers", are installed so that the front wheel a is pressurized and fixed by a pair of diaphragms 45, and the fasteners 46 are spaced apart from each other. Coupling nuts 46b are screwed to both ends of the connecting bolts 46a penetrated through the pair of diaphragms 45, and one side is eccentrically connected to one coupling nut 46b of the connecting bolts 46a. The fixing lever 46c is installed to be axially rotated in a direction orthogonal to 46a). The fastener 46 is a general one, and a detailed structure description thereof is omitted, and a front wheel (between the pair of diaphragms 45) is provided. a) and then the fixed lever 46c is rotated so that the diaphragm 45 on both sides moves the front wheel a. When the width is changed according to the type of the front wheel (a) of the bicycle (A) to be fitted in, it is possible to adjust the distance between the pair of diaphragms 45 by adjusting the coupling nuts 46b of each side of the connecting bolt 46a. It is.

At this time, the bicycle is formed by forming several holes as shown in FIG. 5 in the diaphragm 45 in which the fasteners 46 located at the top of the fasteners 46 are installed at the lower edge of the front wheel mounting holes 41. (A) The fastener 46 can be configured to be in close contact with the front and rear of the front wheel a according to various diameters of the front wheel a. When the diameter of the front wheel a is large, the fastener 46 is placed in the outermost hole. If the diameter of the front wheel (a) is small, as shown by the imaginary line of FIG. 5, what is necessary is just to install the fastener 46 in an inner hole.

At the rear of the base frame 3, a propulsion means 5 is installed to generate a propulsion force in the water by manipulating the pedal A2 of the bicycle A mounted on the catamaran 1.

As shown in FIGS. 6 to 7, the propulsion means 5 contacts the outer circumferential surface of the lower side of the rear wheel b when the rear wheel b is settled, and presses the pedal A2 so that the rear wheel b is closed. When rotated, the pair of the bearing 10 is supported so that both ends are freely rotated to be freely rotated at a distance from the middle of the horizontal support 33 of the base frame 3 to the rear so as to cause friction with the rear wheel b. The drive belts 51a are coupled to the front and rear pairs of pulleys 51a-1 fixedly installed on the shaft support 51, respectively, and the drive belts 51a are driven by friction during rotation of the rear wheel b. And rotate together with the pulley 51a-1, and annular stepped bars 51a-2 are formed at both ends of the pulley 51a-1 outside the driving belt 51a to prevent the left and right deviations of the rear wheel b. The lower side of the base frame (3) of the drive belt (51a) is installed so that both sides are supported by the bearing (10) freely rotated Driven shaft 52 is provided and interlocked with the drive belt 51a and the pulley 51a-1, and is rotated together when the driven shaft 52 is rotated at both ends of the driven shaft 52 so that the catamaran vessel 1 Impeller 53 formed with a plurality of blade pieces 54 radially fixed to have a forward driving force, the drive belt 51a and the driven shaft 52 is one side of a pair of pulleys (51a-1) And a pair of driven sprockets 56 fixedly installed on one side of the driven shaft 52 so as to correspond to the pair of drive sprockets 55 and the drive sprockets 55 that are rotated in the same manner as the drive belt 51a. Drive sprocket 55 is coupled to the inside and the driven sprocket 56 is coupled to the outside is made to be interlocked by a chain 57 for transmitting the rotational force of the drive belt (51a) to the driven shaft 52, the blade The piece 54 is formed so that a plurality of through holes 54a penetrate in order to reduce the resistance of the water when the impeller 53 is rotated. .

As another example, as shown in FIG. 8, the propulsion means 5 contacts the outer circumferential surface of the lower side of the rear wheel b when the rear wheel b is settled so as to step on the pedal A2 so that the rear wheel b rotates. When the pair of drive rollers (51b) are rotated at the same time by the friction with the rear wheel (b) is spaced at a distance from the middle of the horizontal support (33) of the base frame (3) to the rear at a distance before and after the both ends to freely rotate 10 is fixedly installed on each of the pair of shaft support 51 configured to be supported, the lower side of the base frame (3) between the pair of drive rollers (51b) both sides are supported by the bearing (10) is installed to rotate freely A driven shaft 52 is provided and interlocked with a pair of drive rollers 51b, and is driven together when the driven shaft 52 is rotated at both ends of the driven shaft 52, so that the catamaran line 1 moves forward in the water phase. The impeller 53 in which several wing pieces 54 are formed radially to have a fixed structure The pair of drive rollers 51b and the driven shaft 52 are configured to protrude to one side of the pair of drive rollers 51b, and the pair of drive sprockets 55 rotated in the same manner as the drive rollers 51b. A driven sprocket 56 and a pair of drive sprockets 55 fixedly installed on one side of the driven shaft 52 corresponding to the drive sprockets 55 are coupled to the inside, and driven sprockets 56 are coupled to the outside to drive rollers. It is made to be interlocked by the chain 57 for transmitting the rotational force of the 51b to the driven shaft 52, the wing piece 54 also has several through holes 54a to reduce the resistance of the water during the rotation of the impeller 53 ) Is formed to penetrate through.

And a pair of drive rollers (51b) installed in the rear of the base frame (3) so that the rear wheel (b) of the bicycle (A) is formed in a U-shaped concave shape as shown in Figure 9a to the rear wheel ( The contact surface with the outer circumferential surface of b) can be made to be more stably settled while improving the frictional force, and the outer circumferential surface of the driving roller 51b has several friction grooves radially as shown in FIG. 51b-1) or a friction member 51b-2 such as rubber, silicone, urethane or the like may be coated as shown in FIG. 9C.

In this case, when the bicycle (A) is mounted on the catamaran (1), the front wheel (a) of the bicycle (A) is coupled to the front wheel mounting hole 41 installed in front of the base frame (3) of the catamaran (1), so the catamaran boat It can be mounted by holding the center of the bicycle (A) in the upper portion of (1), but one end is rotatably installed on the base frame (3) of the catamaran (1) for a more secure fixing of the bicycle (A), the other end of the bicycle Each frame constituting the frame (A) may be further provided with a plurality of fixing means (6) which are fixedly fixed by a fastener such as a general fastener or hook (hook), along with the rear wheel (b) of the bicycle (A) and In order to increase the frictional force of the driving belt 51a or the driving roller 51b, one end is coupled to the rear of the base frame 3 and the other end is made of a rope, a wire or a round rod fixed to the rear frame of the bicycle A. Rope diameter to adjust tension In the case of the cargo fastening bands, wires and round rods used in the van, also known as "auto bar" or "color" may be provided with a tightening means (7) having a structure such as a turnbuckle.

The catamaran boat 1 driven by the detachable bicycle A of the present invention configured as described above is equipped with a catamaran boat 1 by mounting a general bicycle A used to run by stepping on a pedal A2 on land. The catamaran vessel 1 is steered and propelled by manipulating each part of the front wheel mounting apparatus, which is first protruded upward in front of the base frame 3 on which both sides are fixed to both side buoyancy bodies 2 of the catamaran vessel 1 ( 41. The front wheel a of the bicycle A is inserted into the indentation groove 42 of the bicycle A. Then, when the fixing lever 46c of the fastener 46 is rotated, the lower side of the hub of the front wheel a extends to both side plates 45. The bicycle (A) rear wheel (b) to the drive belt (51a) or a pair of drive rollers (51b) installed on a pair of shaft support (51) installed back and forth to be freely rotated to the rear of the base frame (3) Mount the bicycle (A) on the catamaran (1) by placing the lower outer surface of the At this time, the other end of the fixing means (6), one end of which is freely rotated on the base frame (3), the top tube (down tube), down tube (seat tube), seat stays (chain), chain By selectively fixing each frame of the frame, such as chain stays, the bicycle A is more firmly fixed to the base frame 3 of the catamaran vessel 1, together with the fixing means 6 and the base of the catamaran vessel 1 The rear wheel (b) and the driving belt (51a) or driving roller (A) of the bicycle (A) by adjusting the tension of the fastening means (7) fixed at both ends of the frame (3) and the rear chainstay or seatstay of the bicycle (A). 51b) may increase the friction.

After the general bicycle (A) is mounted on the catamaran (1) of the present invention as described above, the user rides on the bicycle (A), and then the pedal (A2) of the bicycle (A) on a foot moves the normal bicycle (A). When the stepping in the direction of the rear wheel (b) is rotated, at this time, the rear wheel (b) is rotated to rotate the drive belt (51a) or a pair of drive rollers (51b) in contact with the rear wheel (b), wherein The driven sprocket 56 connected by the chain 57 and the drive sprocket 55 installed to protrude to one side of the pulley 51a-1 or the drive roller 51b inscribed in the drive belt 51a are driven by the drive belt 51a. Or it is rotated in the opposite direction to the rotation direction of the drive roller (51b), thereby rotating the impeller 53 fixed to both ends of the driven shaft 52 while the driven shaft 52 is fixed to the driven sprocket 56 is fixed together Since several blade pieces 54 of the impeller 53 rotated to push the water backwards, catamaran (1) It is to get the momentum moving forward.

Further, as described above, the handle A1 of the bicycle A in the catamaran 1 which is pushed by the propulsion means 5 behind the base frame 3 of the catamaran 1 by stepping on the pedal A2 of the bicycle A. If left and right as desired, the front wheel (a) of the bicycle (A) is rotated to the left and right, the front wheel mounting hole 41 in which the front wheel (a) is inserted at the same time rotates to the left and right at this time, at the bottom of the front wheel mounting (41) Rotating shaft 43 formed integrally is installed so as to rotate freely in the base frame 3, the steering plate 44 fixed to the lower end of the rotating shaft 43 is rotated in the same manner as the front wheel (a) of the bicycle (A) Steering means (4) in front of the base frame (3) to be manipulated as desired by manipulating the handle (A1) of the bicycle (A), which is to adjust the direction of the catamaran (1) in the submerged state. By) the catamaran 1 can be steered in the desired direction in the water phase.

And if you want to stop the catamaran (1) in place while driving in the water, ride the bicycle (A) on the land, and pull the front brake lever or rear brake brake lever to stop the rear wheels installed on the handle (A1) of the bicycle (A) Pulling the lever of the brake stops the rear wheel (b) of the bicycle (A) and the driving belt (51a) or a pair of driving roller (51b) in contact with the rear wheel (b) is stopped, at this time pulley ( 51a-1) or driven sprocket 55, which is rotated in the same manner as drive roller 51b, stops, and driven sprocket 56 connected to drive sprocket 55 and chain 57 is stopped so that driven shaft 52 stops. As a result, the impeller 53 stops and the wing piece 54 of the impeller 53 submerged in water stops and blocks the flow of water, thereby preventing the catamaran 1 from moving forward and stopping the water as a whole. Weight of catamaran (1) You can move, steer and stop as you wish.

In the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the technical scope of the present invention. Therefore, the protection scope of the present invention should not be limited to the described embodiments, but should be defined by the claims below and equivalents thereof.

1: catamaran 2: buoyancy body
3: base frame 31: front guard zone
32: posterior zone 33a: horizontal support
33b: vertical support 4: steering means
41: front wheel fitting 42: inner groove
43: rotation shaft 44: steering board
45: Plate 46: Fixture
46a: Connecting bolt 46b: Joining nut
46c: fixed lever 5: driving means
51: Shaft support 51a: Drive belt
51a-1: Pulley 51a-2: Step
51b: Driving roller 51b-1: Friction groove
51b-2: friction member 52: driven shaft
53: Impeller 54: wing
54a: Through hole 55: Drive sprocket
56: driven sprocket 57: chain
6: fixing means 7: tightening means
10: bearing A: bicycle
A1: Handle A2: Pedal
a: front wheel b: rear wheel

Claims (7)

A pair of buoyancy bodies (2) provided spaced to both sides,
A base frame 3 fixedly installed between the buoyancy bodies 2 on both sides,
The front wheel mounting portion 41 is configured to protrude upward in front of the base frame (3),
An inner groove 42 formed so as to open upwardly so that a lower portion of the front wheel a of the bicycle A is inserted into the front wheel fitting 41;
A rotating shaft 43 integrally configured to penetrate the base frame 3 up and down in the lower portion of the front wheel fitting 41;
A bearing 10 installed between the base shaft 3 and the base shaft 3 and the pivot shaft 43 vertically penetrated so that the pivot shaft 43 is freely rotated about the pivot shaft 43 from the base frame 3,
A steering plate 44 fixed to the lower end of the rotation shaft 43 so as to have the same direction as the front wheel a of the bicycle A,
A pair of rear bicycles (A) rear wheel (b) is placed in the rear of the base frame (3) spaced back and forth to the rear of the base frame (3) so as to rotate simultaneously by friction with the outer peripheral surface of the rear wheel (b). A drive belt 51a coupled to the pair of pulleys 51a-1 fixedly installed on the shaft support 51 so as to be externally connected;
Annular stepped bars 51a-2 formed at both ends of the pulley 51a-1 on the outside of the drive belt 51a to prevent the rear wheel b from being separated left and right,
A driven shaft 52 supported by the bearing 10 so as to freely rotate under the base frame 3 of the driving belt 51a and installed in association with the driving belt 51a and the pulley 51a-1,
Impellers 53 fixedly installed at both ends of the driven shaft 52 to be rotated together with the driven shaft 52, and several blade pieces 54 are formed radially;
A pair of drive sprockets 55 are configured to protrude to one side of each of the pair of pulleys 51a-1 and rotate in the same manner as the pulleys 51a-1, and are coupled inwardly to correspond to the drive sprockets 55. The driven sprocket 56 is fixed to one side of the coaxial 52 is a catamaran line driven by a removable bicycle, characterized in that consisting of a chain 57 is configured to be coupled to the outside.
A pair of buoyancy bodies (2) provided spaced to both sides,
A base frame 3 fixedly installed between the buoyancy bodies 2 on both sides,
The front wheel mounting portion 41 is configured to protrude upward in front of the base frame (3),
An inner groove 42 formed so as to open upwardly so that a lower portion of the front wheel a of the bicycle A is inserted into the front wheel fitting 41;
A rotating shaft 43 integrally configured to penetrate the base frame 3 up and down in the lower portion of the front wheel fitting 41;
A bearing 10 installed between the base shaft 3 and the base shaft 3 and the pivot shaft 43 vertically penetrated so that the pivot shaft 43 is freely rotated about the pivot shaft 43 from the base frame 3,
A steering plate 44 fixed to the lower end of the rotation shaft 43 so as to have the same direction as the front wheel a of the bicycle A,
A pair of rear bicycles (A) rear wheel (b) is placed in the rear of the base frame (3) spaced back and forth to the rear of the base frame (3) so as to rotate simultaneously by friction with the outer peripheral surface of the rear wheel (b). A pair of drive rollers 51b fixedly installed on the shaft support 51, the center of which is concave,
A driven shaft 52 supported by the bearing 10 so as to be freely rotated below the base frame 3 between the pair of driving rollers 51b and interlocked with the driving rollers 51b;
Impellers 53 fixedly installed at both ends of the driven shaft 52 to be rotated together with the driven shaft 52, and several blade pieces 54 are formed radially;
A pair of drive sprockets 55 which are configured to protrude to one side of the pair of drive rollers 51b and rotated in the same manner as the drive rollers 51b are engaged inward, and are driven to correspond to the drive sprockets 55. 52) A detachable bicycle driven catamaran line, characterized in that the driven sprocket 56 fixedly installed on one side is composed of a chain 57 configured to be coupled to the outside.
The method according to claim 1 or 2,
The catamaran line is detachably installed at one end of the base frame (3), and further includes several fixing means (6) installed at the other end of each frame constituting the frame of the bicycle (A). Catamaran powered by bicycle.
The method according to claim 1 or 2,
The catamaran is detachable, characterized in that one end is further provided with a fastening means (7) configured to be coupled to the rear of the base frame (3) and the other end is fixed to the rear frame of the bicycle (A) to adjust the tension Catamaran powered by bicycle.
The method according to claim 1 or 2,
Removable bike-driven catamaran, characterized in that the wing piece further comprises a plurality of through holes (54a) formed to penetrate to reduce the resistance of the water when the impeller (53) rotates.
The method of claim 2,
The pair of driving rollers (51b) is a catamaran boat driven by a detachable bicycle, characterized in that a plurality of friction grooves (51b-1) radially formed in order to increase the frictional force with the rear wheel (b) of the bicycle (A) on the outer peripheral surface .
The method of claim 2,
The pair of driving rollers (51b) is characterized in that the friction member 51b-2 selected from rubber, silicon, urethane is coated on the outer circumferential surface to increase the frictional force with the rear wheel (b) Catamaran powered by detachable bike.

Images