KR100389462B1 - Tidalflat Drive Moter Boat - Google Patents

Abstract

The present invention relates to a tidal flat propulsion motor boat, and escapes the turning method of the propeller applied to the conventional vessels, such that the longitudinal axis 21 is rotated along the cylindrical cam groove (18 ') by the rotational force of the cylindrical cam (18) surface or The propulsion is hardly possible with a cruising propulsion boat like the conventional water boat by the new propulsion method of advancing the hull 1 by the ratchet plate 40 and the mounted engine 10 which are stroked back and forth in the same linear position as the surface of the tidal flat. This is a tidal flat motor boat that can move freely from a tidal flat that was impossible.It is a useful invention that can be promoted even in swamps and waters.It is a fishing village that catches fish while kneeling on one board and moving a tidal flat with one foot from the vast tidal flats of Korea. A mud-pack tourist destination is being developed or held in addition to the creation of marine ecosystem parks in the tidal-flat conservation as well as important fishing and transportation If the coastal area is used for leisure in cultural tourism projects such as the Yeongari tidal flat in Incheon, the mud festival in Hampyeong Bay and Boryeong, the germanium tidal flat festival in Sinan and Suncheon Women's own tympanic festival, It is a useful invention that can be a chance to attract.

Description

Tidalflat Drive Moter Boat

The present invention relates to a tidal flat propulsion motor boat, and in particular, the invention relates to a motor boat that is propelled in the sea as well as tidal flat, mounted from the 2001 patent application No. 0018070 'tidal flat propulsion boat' which is the prior art of the present inventors Another improved invention, which is strongly driven by one engine (10), is driven by a ratchet plate propulsion plate.

Tidal-flat is a large, flat land consisting of sand, tidal or tidal flats along the tides, and is a septic tank that cleans up the coastal waters of the tidal flats, known as a treasure trove of about 12,000 species of life. A study of ten square kilometers of tidal flats in Mikawa Bay found that the ability to purify pollutants in tidal flats decreased by about 8 percent per hour, which filtered 96 percent of the total seawater every 12 hours. It is revealed that the cleanup facility costs 122.1 billion won in Korean money, costs 5.7 billion won a year, and adds 8,000 billion won for other incidents.

These tidal flats provide habitats and spawning grounds for a variety of fish and shellfish and produce over 60% of the total catch.

In addition, tidal flats serve as migration routes and habitats for Asian migratory birds, and one-third of the endangered species on Earth are said to be used as future food and medical resources. It also plays a role.

In addition, the marine ecosystem parks and mud packs are worth seeing for their cultural tourism, including the Yeocha-ri Tidal Flat Area in Incheon, the Mud Festival in Hampyeong Bay and Boryeong, the Germanium Tidal Flat Festival in Sinan, and Suncheon Woman's own eardrum festival.

In particular, the tidal flats on the west coast of Korea are considered to be one of the five largest tidal flats in the world, along with the eastern coast of Canada, the eastern coast of the United States, the north coast, and the Amazon River basin.

Types of tidal flats include pearl tidal, sandy tidal and sandy pearl tidal flats depending on the sedimentary phase.

Double pearl tidal flats are well developed in the vicinity of Ganghwa Island, and some have a depth of 0.0031 millimeters and several meters deep.

In addition, tidal flats in Goheung-deung, Jeollanam-do, have more than 98 percent of heterogeneity and more than 10 percent of organic matter, so that the water content is very high, so it is difficult to walk over the knees. It is used as an important means of transportation in the tidal flats.

In the present invention, the tidal flats of the southwestern coast of Korea have a report of the vast resources as the world's five tidal flats, but as a reckless development or reclamation project, Professor Moon-Gong Moon recently said in the report of tidal flat ecosystem conservation, It has been reduced by 45% over 20 years, and accordingly, the fishing area in Tokyo has decreased by 8,160 km2.

Recently, the government's commitment to designate and preserve the tidal flat areas with conservation value as a marine ecosystem park has been declared as a part of the conservation of these important tidal flats.

In the present invention, rather than developing the world's few vast tidal flat resources as reclaimed land, in conjunction with the beautiful scenery of the southwest coast provides a boat that is propelled in the tidal flats, such as water boats in the vast tidal flats along with the mud flat mud festival, It is intended to use as a means of attracting foreign tourists as a new marine tourism resource street.

However, the mud flat has a pearl, sand, or a mixed type of pearl and sand, so it is impossible to propel it with a scoo-ryu propulsion boat like the conventional water boat.

Accordingly, in the present invention, as a new propulsion method for advancing the hull by the front and rear stroke in the turning method of the propeller so that the propulsion can be carried out in other tidal flats, swamps or water, in particular, the ratchet plate to greatly improve the mobility in the wide tidal flat or the water By adopting a propulsion plate such as a ratchet plate to be strongly driven by the engine, it is to provide a tidal-propelled motor boat by improved invention that increases horsepower and speed.

1 is an overall perspective view of the present invention

Figure 2 is an exploded perspective view showing the configuration of the main part of the present invention

Figure 3 is a partial cross-sectional view showing the power transmission and steering system of the present invention.

Figure 4 is a partial cross-sectional view showing the axis assembly relationship of the cylindrical cam according to the present invention.

5 is a reference perspective view of the ratchet plate propulsion plate according to the present invention

Figure 6 is a partial perspective view of the ratchet plate propulsion plate according to the present invention

Figure 7 is a reference plan view showing the operation of the ratchet plate propulsion plate according to the present invention

※ Explanation of symbols for main parts of drawing

1: hull 2: deck

3: Guide roller groove 4: Deck

5: Rudder adjusting groove 6: Rudder handle housing

6 ': Gage 6 ": Shift handle

7: Rudder handle 7 ': Rudder handle shaft

8: Clutch Arm 9: Seat

9 ': Cover 10: Engine

11: V-belt 12: loading

13: Drain 14: front panel

15: Windows 16: Hook

17: Exhaust vent 17 ': Communication

18a: Wondongli 18b: Drivenley

18c: Driving Flicky Bolt

19a: cylinder cam 19b: cylinder cam home

19c: cylindrical camshaft 19d: shaft joint pipe

19e: key rod

20: cylindrical bore bearing 21: longitudinal shaft

22: Termination 22 ': Ball bushing ring

23: ball bush 24: return spring

25: spring pocket 26: fixed tab

27: Fixed tab groove 28: Wire cable

28 ': Cable holder 28 ": Cable head

29: ball bush unit 30: ball bush shaft

31: Guide roller 31 ': Flat washer

31 ": Outer diameter stop ring 32: Shock absorber rod

32 ': Rod lock pin 32 ": Locking piece

32 "': Standing stop 33: Shop overload guide

34: Tension adjustment nut 35: Protective cap

36: Shop over spring 37: Shop over stopper

38: Factory over installation version 39: Promotional version

40: ratchet plate

40 ': Ratchet Plate Mounting Part 40 ": Guide Shaft

41: Ratchet Plate Assembly Pin 42: Assembly Pin Stop Ring

43: Assembly pin guide 44: Guide shaft washer

45: Split Pin 46: Assembly Pin Guide Groove

47: arm 48: arm axis

49: Connector

In view of the above, it will be described one embodiment of the present invention by the accompanying drawings.

1 is an exploded perspective view showing an entire perspective view of the present invention and the main part configuration according to Figure 2, the front deck 14 is formed with a front panel 14 on the front side, the rudder adjustment groove of the upper front side ( 5) the rudder handle 7 formed on the rudder handle shaft 7 'and the shift handle 6 " are provided on the side, and the fuel of the rudder handle housing 6 is provided in the body. An instrument window 6 'showing a display or an rpm is provided, and a seat 9 is installed to the rear, and a cover 9' is attached to the right deck 4 of the seat 9 after the deck 4. The side is formed by the loading bin 12 in which the drain port 13 was formed.

As shown in Figs. 2 and 4, the conventional hook 16 and the window 15 are formed in the bow, and the FRP hull 1 having urethane foamed inside is attached to both sides of the keel of the bottom. After embedding the key rod 19e in which both heads were cut in a semicircle in the formed shaft joint pipe 19d, the driving fleece 18b was fixed to the intermediate shaft of the shaft joint pipe 19d with the driving flip bolt 18c. Then, the cylindrical cam shaft 19c of the cylindrical cam 19a having the cylindrical cam groove 19b opposed to the left and right shaft holes in which the cylindrical bore bearing 20 is inserted in the outer diameter portion of the shaft joint pipe 19d on which the outer diameter end is formed is placed. Assemble the cylindrical bore bearing (20c) on both outermost cylindrical camshafts (19c), and fix it to the bottom of the ship, and the driving fleece (18b) is a circular fleece (18a) of the engine (10) installed on the side. And v-belt (11).

On the other hand, as shown in Fig. 2 and 3, the ball bush shaft 30 of the stroke length of the cylindrical cam groove (19b) in which the ball bushing unit 29 is inserted into both ends of the cylindrical cam (19a) bottom bottom Fixing to, but fixed to the upper end of the ball bushing unit 29, the longitudinal cutting shaft 21, the spring pocket (25) having a fixed tab groove (27) formed in the inner diameter of the two longitudinal shafts 21 of the cylindrical cam groove (19b) portion ( 25, the longitudinal tab 22 is inserted into the ball bush 23, which is installed by the return spring 24 and the ball bushing ring 22 ', and is fixed to the longitudinal projection 22 side. 26) one end of the cable head 28 "of the wire cable 28 supported by the cable holder 28 ', and the flat washer 31' on the inner end of the biaxial longitudinal axis 21 After inserting the guide rollers 31, each of which is conically separated from the inside and outside of the guide roller groove (3) formed on the front and rear walls of the hull (1) after each insertion It is fixed by the outer diameter stop ring 31 ".

A protective cap between the second and the third from the front side on the upper side of the saw-over installation plate 38, which is a rectangular plate, below the end of the longitudinal axis 21 protruding from the guide roller groove 3 to the outside of the hull 1 ( 35) Welded on top.

As shown in FIGS. 2, 3, and 5 to 7, the shaft-over shaft 21 is rotated by the rotation of the cylindrical cam 19a in the present invention. Accordingly, the hull propulsion unit for propelling the hull 1 by a stroke reciprocating back and forth is described in detail as follows.

On the upper side of the shop-over mounting plate 38, a hollow pipe-type shop-overload guide 33 having a tab is formed on the bottom outer ring of the lower side of the upper side of the lower side of the upper side of the pipe, and fixed by welding. Tap-up spring stopper 37 in the middle of the tab portion is fitted over the spring 36 spring in the upper shaft of the shop overload 32, the connector 49 is formed on the lower shaft, the shop over installation plate 38 Insert the tension adjustment nut 34 to the protruding top head at the lower end of the lower part of the) to maintain the proper height, and tap the inner diameter on the lower outer ring of the overload guide 33. Install the formed protective cap 35.

On the other hand, as shown in Figures 2, 5, 6, each connector 49 of the lower axis of the shop overload 32 in three rows of two sets in the center row of the upper surface of the ski plate-shaped propulsion plate (39) The rod fixing pin 32 'is inserted into the welded fixing piece 32 ", and the rod fixing pin 32' is flow-installed by the stop ring rod 32" ', but the assembly pin guide 43 is arranged in three rows on the upper center in the longitudinal direction of the propulsion plate 39. ), The ratchet plate 40 forms an assembly pin guide groove 46 having a deployment angle of at least 20 degrees at a maximum of 90 degrees, and an assembly pin guide 43 at the bottom of the propulsion plate 39. The ratchet plate fixing piece 40 'welded to the front side and the front side is sandwiched by a ratchet plate assembly pin 41 at the bottom of the two-pack ratchet plate 40, and the head protruding from the upper head of the assembly pin guide 43. Is fixed to the assembly pin stop ring 42, and the upper end of the guide shaft 40 "reinforced on the side of the ratchet plate 40 is drawn out to the assembly pin guide groove 46. After inserting the guide shaft washer 44, the flow is installed by the split pin (45).

Meanwhile, as shown in FIGS. 1 to 3, both sides of the clutch arm 8 protruding from the lower end of the rudder handle shaft 7 ′ of the rudder handle 7 formed on the deck 4 are arm shafts 48. The wire cable 28 on the left side is formed in contact with the lower end of the two sets of arms 47 formed in a right angle shape, and the cable head 28 "is inserted into the cable anchor 28 'formed on the upper side of the arm 47. One end of the wire cable 28 formed on the fixed tab 26 of the longitudinal cutting shaft 22 of the longitudinal longitudinal axis 21 of the left side and the wire formed on the fixed tab 26 of the longitudinal projection 21 of the longitudinal axis 21 of the post The cables 28 are respectively formed on the fixed tabs 26 of the longitudinal cutting shaft 21 of the post.

One embodiment of the present invention configured as described above will be described with reference to the accompanying drawings.

First, as the action on the power transmission and steering system according to the propulsion of the hull 1 according to the present invention, as shown in Figures 1 to 4, in the center of the keel of the bottom of the shaft joint pipes having outer diameter ends formed on both sides ( After the key rod 19e in which both heads were cut in a semicircle was inserted in 19d), and the drive fleece 18b fixed by the drive pleating bolt 18c was installed in the intermediate shaft of the shaft joint pipe 19d, and then the shaft Cylindrical cam (19a) fixed to the outer end of the joint pipe (19d) by the cylindrical bore bearing (20), and then fixed to the inner diameter of both ends of the joint pipe (19d) by the cylindrical bore bearing (20). The cylindrical camshaft (19c) of the) is assembled to each other and fixed to the bottom of the bottom, the drive fleece (18b) is a pair of cylinders through the drive fleece (18a) and the V-belt (11) of the engine 10 installed on the side Power is transmitted to the cam 19a.

The ball bush shaft 30 of the stroke length of the cylindrical cam groove 19b is disposed on both bottoms of the cylindrical cam 19a in which two sets of the cylindrical cam grooves 19b are opposed to the bottom keel portion of the hull 1 that is rotated. 1) One piece of each longitudinal shaft 21 assembled on each of the ball bushing units 29 flow-mounted in the pair is a ball bush of the longitudinal projection 22 protruding by the return spring 24 inserted into the spring pocket 25. 23 is inserted into the cylindrical cam groove 19b, and the longitudinal axis 21 is linearly reciprocated along the longitudinal direction of the cylindrical cam 19a by the rotation operation of the cylindrical cam 19a.

The cylindrical cam grooves 19b are disposed to face each other, as shown in FIG. 2, so that the longitudinal axis 21 disposed at the right front side and the left rear side of the cylindrical cam 19a is disposed at the top dead center. The longitudinal axis 21 disposed at the front left side and the right rear side of the cylindrical cam 19a is positioned at the bottom dead center, whereby the longitudinal axis arranged at the left and right sides by the rotation of the cylindrical cam 19a ( 21) in the cylindrical cam groove (19b) to operate in a straight reciprocating stroke method so as to face each other to the position of the top dead center and the bottom dead center.

Therefore, the shape in which the propulsive force is repeatedly generated in each of the ratchet plates 40 diagonally to each other corresponds to a freeform or backstroke operation in the zero method.

On the other hand, the longitudinally reciprocating longitudinal axis 21 in the side of the cylindrical cam (19a) is divided body assembly in the inner and outer sides of the guide roller groove (3) formed on the side wall of the ball bush shaft 30 and the hull (1) The guide roller 31 is used to maintain the linear reciprocating stroke while maintaining a constant interval in the state in which the longitudinal projection 22 is not separated from the cylindrical cam groove 18 '.

On the other hand, the action of the shop overload 32 installed in three sets of the shop over mounting plate 38 formed on the four ends of the longitudinal axis 21 protruding into the guide roller groove (3) formed on the side wall of the hull (1) The ratchet plate 40 attached to the lower part of the propulsion plate 39 by the weight of the hull 1 placed on the tidal flat is buried in a predetermined depth of the tidal flat layer instead of being buried deeply in the tidal flat to reduce the resistance during propulsion. .

In addition, even when driving on an uneven tidal bottom, the ratchet plate 40 attached to the four-propelled propulsion plate 39 is always operated on the surface of the tidal flat by the expansion and contraction action of the shop overspring 36. 1) It keeps constant driving force on the left and right sides at all times.

In addition, the tension adjusting nut 34 assembled on the shop overload guide 33 in the protective cap 35 has a hull (1) according to the state of the mud flat to be driven and the mud flat sand and the pearl mud mixed. Is buried differently. Therefore, according to the state where the hull 1 is buried in the tidal flat, the length of the shop overload 32 is adjusted, or the tension strength of the shop over spring 36 is adjusted so that the ratchet plate 40 is always at a constant depth of the tidal flat. Act as a submerged body.

In the above, the end of the longitudinal axis (21) is pushed on the upper side between the second and third protective cap 35 from the front side on the upper side of the shop over installation plate 38, which is a rectangular plate, the center of gravity is located backward When the plate 39 is advanced to the front, the front side is lifted higher than the rear side so that it can easily cross the obstacles in the front, on the contrary, when the rear side is towed to the rear side, the tension play width is gradientd to the front propulsion plate 39 more than the rear When the ratchet plate 40 is towed rearward, it is intended to be operated as horizontally as possible in the tidal surface layer.

In addition, according to the present invention, when the propulsion plate 39 is pulled backward, the ratchet hinged to the ratchet plate fixing piece 40 'welded to the bottom of the assembly pin guide 43 welded to the upper part of the propulsion plate 39. The reason why two plates 40 are flow-mounted by the nested ratchet plate assembly pin 41 is as follows.

That is, the guide shaft 40 "formed at both ends of the ratchet plate 40 at the center of the ratchet plate assembly pin 41 is inserted into the assembly pin guide grooves 46 formed on the propulsion plate 39 and protruded. The guide shaft washer 44 and the split pin 45 in each assembled state.

Therefore, as shown in FIG. 7, the rear side of the ratchet plate 40 is fully deployed on the assembly pin guide groove 46 only when the propulsion plate 39 is pulled to the rear, so that the tidal flat is kicked out.

On the other hand, when the hull 1 is pushed and the propulsion plate 39 is pushed forward, the tidal flats which are divided on both sides by the ratchet plate fixing piece 40 'are pressed while pressing both sides of the ratchet plate 40. The rear side of the plate 40 is closed as much as possible. When the propulsion plate (39) is pushed forward to reduce the resistance at the bottom of the tidal flat as much as possible.

In addition to the respective operations of the present invention configured as described above, the turning function of the hull 1 by the action of the rudder handle 7 formed on the deck 4 will be described with reference to FIGS.

Turning the rudder handle 7 to the right during tidal flat driving according to the present invention, while the clutch arm 8 on the right side installed under the rudder handle shaft 7 'is rotated in the clockwise direction, the arm 47 adjacent to the right is the arm shaft. 48 is pushed downward on the axis of rotation.

Subsequently, the upper end of the arm 48 is rotated counterclockwise with the arm shaft 48 as the rotation axis, and the wire cable 28 tied to the upper end of the arm 48 is pulled out, and the longitudinal axis 21 on the right side of the cylindrical cam 19a is pulled out. The cylindrical cam groove 19b is pulled out by the return spring 24 in the spring pocket 25 by pulling the fixing tab 26 of the wire cable 28 and the fixed longitudinal projection 22 installed on the two cable holders 28 '. ), The longitudinal projection 22 coupled to the () is pulled out, the drive of the right longitudinal axis 21 by the cylindrical cam (19a) is stopped, only the longitudinal axis 21 of the left side is operated, the hull (1) to the right To turn.

Subsequently, when the rudder handle 7 is placed again, the longitudinal projections 22 separated from the cylindrical cam grooves 19b are coupled again by the restoring force of the return springs 24 formed at the right longitudinal shafts 21. The longitudinal axis 21 is a straight reciprocating stroke along the longitudinal direction of the cylindrical cam 19a to travel straight.

The engine 10 according to the present invention is a general engine provided with an accelerator (not shown) function, and a detailed internal illustration thereof has been omitted, and in order to shift the traveling speed of the hull 1 according to the present invention, FIGS. As shown in Fig. 2, the shift handle 6 "installed on the side of the rudder handle housing 6 is equipped with a conventional accelerator attached to the engine to adjust the rotational speed of the engine to adjust the traveling speed of the hull 1. To make adjustments.

In addition, the instrument window 6 'in which an indicator such as an engine or fuel amount of the engine is installed is also common, and its detailed illustration is omitted.

In addition, the cover 9 'which is not described in the drawing is a cover for checking the state of the engine 10 installed on the bottom, and the exhaust port 17 is an exhaust gas passage discharged from the engine 10, and communication ( 17 ') is an elbow mounted at an exhaust port 17 installed at the rear of the hull 10.

As described above, the present invention deviates from the propulsion method of the propeller applied to a conventional vessel, and the like, compared to a tidal flat propulsion boat propelled by the prior art of the present invention, the driving speed and the horsepower are excellent in maneuverability in a wide tidal flat.

Therefore, as a tidal flat motor boat that can travel freely even at high tide or low tide after collecting fish and shellfish from the tidal flat, it rotates the cylindrical cam 19a that receives the power of the engine 10 to the driving fleece 18b. As the longitudinal axis 21 is rotated back and forth at the linear position such as the surface of the water or the tidal flat layer, the rear end surface of the ratchet plate 40 is deployed to the hull (1), while the longitudinal camshaft 21 rotates along the cylindrical cam groove 19b. Gives momentum.

On the other hand, when advancing in close contact with the maximum to reduce the resistance, the ratchet plate 40 of the hinge-like shape is retracted, while repeating the stretch, while pushing the tidal flat propulsion of the tidal flat motor boat.

As described above, the present invention is a tidal-propelled motor boat that moves freely from a tidal flat where a propulsion method for advancing the hull 1 cannot be propelled by a scoo-type propulsion boat such as a conventional water boat.

In addition, the hull (1) according to the present invention is a useful invention that can be promoted in swamps and water, as well as mud flats, sandy tidal flats, mud flats and sandy tidal flats. By mounting the engine 10 so as to eliminate the inconvenience of moving in the garage, by providing a loading compartment for carrying heavy fish and shellfish (12), when it is high tide after tidal flat work can be used as a water motor boat It is an invention that can be widely used as an important means of transportation for fishing villages.

In addition to the above-mentioned means of transportation for fishing, we are developing or holding a mud pack tourism site with the creation of a marine ecosystem park in terms of tidal-flat preservation rather than indiscriminately reclaiming tidal flats, which are the resources of the world's five tidal-flat areas. If you use this tidal-propelled motor boat for leisure, you can also use it for cultural tourism projects such as the Yeocha-ri tidal flat in Incheon, Mud Festival in Hampyeong Bay and Boryeong, Germanium tidal flat festival in Sinan and Suncheon Festival for Suncheon women. It is a useful invention that can be an opportunity to attract foreign tourists to other countries.

Claims (4)

Ordinary hooks 16 and windows 15 are formed on the bow, and the front panel 14 is formed with a front panel 14 on the front side, and the rudder handle shaft (5) on the rudder adjustment groove 5 of the upper front side. The rudder handle housing 6 and the seat 9 having the rudder handle 7 formed thereon at 7 '), and the deck 4 having the lower end rearward secured the loading compartment 12 having the drain hole 13 formed therein. In the hull wire rod, the FRP hull (1) made of urethane foamed therein, and both heads are cut in a semicircle in the shaft joint pipe (19d) having outer diameter ends at both sides at the keel center of the hull (1). After the built-in key rod 19e is embedded, the drive joint 18b fixed to the drive joint key bolt 18c is installed on the intermediate shaft of the shaft joint pipe 19d, and then a cylinder is formed at the outer end of the shaft joint pipe 19d. After each of the bore-type bearings 20 is mounted in a shaft, the cylinder is fixed with shaft bore-shaped bearings 20 at both ends at the inner diameter of both ends of the shaft joint pipe 19d. The cylindrical camshaft 19c of 19a is mutually assembled and fixed to the bottom of the ship, and the driving fleece 18b is connected to each other via the driving fleece 18a and the V-belt 11 of the engine 10 installed on the side. The ball bush shaft 30 of the stroke length of the cylindrical cam groove 19b, which transmits power to the cylindrical cam 19a of the tank, and the cylindrical cam groove 19b into which the ball bushing unit 29 is inserted at both sides of the cylindrical cam 19a. Fixed to the bottom of the bottom, but fixed to the upper end of the ball bushing unit (29) by welding the longitudinal axis (21), the fixed tab groove (27) formed in two inner diameters of the longitudinal axis (21) of the cylindrical cam groove (19b) portion The spring pocket 25 is inserted with the ball bush 23, which is installed by the return spring 24 and the ball bushing ring 22 ', to insert the longitudinal projection 22, and is fixed to the longitudinal projection 22 side. The one end of the cable head 28 "of the wire cable 28 supported by the cable anchor 28 'is fixed to the protrusion of the fixing tab 26, and the rudder handle shaft 7a. It is connected to the arm 47 provided in the clutch arm 8 formed in the portion and the adjacent body arm shaft 48, and the flat washer 31 'is inserted into the inner side of the longitudinal axis 21, and then the hull ( 1) After inserting the guide rollers 31, each of which is conically separated from the inside and the outside of the guide roller grooves 3 formed on the front and rear walls, each of the longitudinal shafts 21 fixed with the outer diameter stop ring 31 " The assembly pin guides 43 are welded in three rows on the upper center in the longitudinal direction of the propulsion plate 39 installed on the bottom connector 49 of the shop overload 32 attached to the shop over mounting plate 38 coupled to the bottom. As a center point, the ratchet plate 40 forms an assembly pin guide groove 46 having a deployment angle of at least 20 degrees at a maximum 90 degrees, and directly below the assembly pin guide 43 at the bottom of the propulsion plate 39. To the ratchet plate fixing piece 40 'welded to the ratchet plate, the ratchet plate assembly pins 41 are inserted into the ratchet plate assembly 40 at the bottom of each other. The head protruding from the upper head of the 43 is fixed by the assembly pin stop ring 42, and the upper end of the guide shaft 40 ″ reinforced to the side frame of the ratchet plate 40 is the assembly pin guide groove 46. After pulling out the guide shaft washer 44, the tidal flat motor boat, characterized in that the flow installed by the split pin (45). The method of claim 1, wherein the pipe overload guide 33, which is a hollow pipe type having a tab formed on the lower outer ring of the upper side of the lower beam, is welded and formed to penetrate the upper side of the overboard mounting plate 38. However, after the tap-up spring stopper 37 at the intermediate end of the upper end shaft is inserted into the upper shaft of the shop-overloading rod 36, on which the connector 44 is formed on the lower shaft, the shop-up spring 36 is inserted. Insert the tension adjustment nut 34 into the upper head of the overhang guide 33 at the lower end of the overmounting plate 38 to maintain the proper height, and lower the lower part of the overload guide 33. Tidal flat high motor boat, characterized in that the outer ring is provided with a protective cap 35 formed in the inner diameter. According to claim 1 and claim 2, The overhang installation plate 38, which is a rectangular plate welded to the end of the longitudinal axis (21) is characterized in that welded to the upper end between the second and third protective cap (35) from the front side. Tidal flat motor boats. 2. The clutch arm (8) according to claim 1, wherein both sides of the clutch arm (8) protruding from the lower end of the rudder handle shaft (7 ') of the rudder handle (7) formed on the deck (4) have a right-sided flow shape installed on the arm shaft (48). One end of the left wire cable 28 is formed in contact with the lower end of the two arms 47, and the cable head 28 "is inserted into the cable anchor 28 'formed on the upper side of the arm 47. The wire cable 28 formed on the fixed tab 26 of the longitudinal projection 22 of the longitudinal projection 22 and the wire cable 28 formed on the fixed tab 26 of the longitudinal projection 21 of the longitudinal projection 22 are formed of Tidal flat motor boat, characterized in that formed on each of the fixed tabs 26 of the longitudinal cutting protrusion (22) of the cutting shaft (21).