JP3144731U - Tidal flat survey machine - Google Patents

Abstract

To provide a tidal flat survey machine that can freely travel on a tidal flat and can float even if the trunk is damaged during the tidal flat.
In a tidal flat investigation machine 10 that travels on a tidal flat with traveling wheels 14 and 15 attached to the front sides of left and right rotational drive shafts 12 and 13 whose shaft ends are exposed from the left and right sides of the trunk 11, respectively. Includes a body 16 made of foamed resin and entirely solid, and a reinforcing covering portion 17 that covers the surface of the body 16. Here, it is preferable that the reinforced covering portion 17 includes a water-resistant base layer attached to the surface of the body 16 and a fiber reinforced plastic layer attached to the surface of the base layer.
[Selection] Figure 2

Description

The present invention relates to a tidal flat survey machine that moves while moving on the surface of the water when the tide rises and the water level rises while surveying while running on the tidal flat.

Conventionally, moving means using human power such as lagoon skiing is known when moving on a tidal flat, but it is not practical when carrying a device such as a measuring instrument to move the tidal flat over a wide area. Therefore, a tidal flat investigation machine in which outer ring wheels are attached to the left and right sides of the hull (fuselage) has been proposed (see, for example, Patent Document 1).

Japanese Patent No. 3793963

The tidal flat survey machine described in Patent Document 1 prevents the increase in resistance when moving by tilting the hull forward by rotation of the outer ring wheel, and supports the overall weight of the tidal flat survey machine by the buoyancy of the bottom of the hull. I'm gliding up. For this reason, when moving on a tidal flat, the bottom of the hull is worn and a hole is formed, or when a crack occurs on the bottom of the hull by colliding with a hard foreign object such as a stone, seawater enters the hull when the tide is full. The problem arises that it cannot float.

The present invention has been made in view of such circumstances, and an object thereof is to provide a tidal flat survey machine that can freely travel in a tidal flat and can float even if the trunk (hull) is damaged during the tidal flat. .

The tidal flat investigation machine according to the present invention that meets the above-mentioned purpose is a tidal flat investigation machine that travels on a tidal flat with the traveling wheels attached to the front side of the left and right rotation drive shafts where the shaft ends are exposed from the left and right sides of the trunk,
The fuselage has a completely solid body made of foamed resin and a reinforced coating covering the surface of the body.

In the tidal flat investigation machine according to the present invention, the reinforced covering portion includes a water-resistant undercoat layer attached to the surface of the airframe, and a fiber reinforced plastic layer attached to the underlayer surface. Is preferred.

In the tidal flat investigation machine according to the present invention, the left and right rotational drive shafts are connected to a rotational power source power shaft and a differential gear mechanism disposed in a recess formed in front of the front-rear direction center of the trunk. It is preferable that they are connected.

In the tidal flat investigation machine according to the present invention, the traveling wheel includes a connection ring connected to ends of the left and right rotation drive shafts, and a plurality of supports on the connection ring that are coaxial with the connection ring. An outer ring member provided through the member, and a plurality of blades attached to the outer circumference of the outer ring member in an obliquely partially protruding state, and a tip part thereof biting into the surface of the tidal flat during rotation. preferable.

In the tidal flat investigation machine of the present invention, since the fuselage is made of foamed resin, the machine is easy to manufacture because it is excellent in workability, and the tidal flat investigation machine can be easily transported because the weight can be reduced. In addition, the body is water-tight because it is made of foamed resin, and since the entire body is solid, water does not accumulate inside even if holes or cracks occur in the body, making the fuselage easily non-sinkable structure, When the tide fills and the water level rises, you can float with buoyancy. By covering the surface of the fuselage with a reinforced covering, it is possible to prevent damage to the surface layer of the fuselage when a load (for example, impact force) is applied to the fuselage surface. Can be prevented from being worn directly.

In the tidal flat survey machine of the present invention, when the reinforced coating part has a water-resistant base layer stuck to the surface of the aircraft and a fiber reinforced plastic layer stuck to the surface of the base layer, the fiber reinforced plastic Even if the wear of the layer gradually progresses, the disappearance of the fiber reinforced plastic layer can be accurately identified by the appearance of the water-resistant underlayer on the surface, and the disappearance of the fiber reinforced plastic layer can be easily repaired. it can. As a result, the airframe can be prevented from being worn, and the life of the tidal flat survey machine can be extended.

In the tidal flat survey machine of the present invention, when the power shaft of the rotary power source is connected to the left and right rotation drive shaft through a differential gear mechanism, when turning the tidal flat survey machine, turn left and right The number of rotations of the drive shaft can be easily differentiated, and the tidal flat survey machine can turn smoothly.

In the tidal flat investigation machine of the present invention, the traveling wheels are connected to the ends of the left and right rotation drive shafts, respectively, and are provided coaxially with the connection ring and provided on the connection ring via a plurality of support members. When the traveling wheel is rotated when the outer ring member has a plurality of blades that are attached to the outer ring member and the outer ring member is obliquely protruded partially and the tip part of the outer ring member bites into the surface of the tidal flat during rotation. The reaction force received from the tidal flat can be effectively received by the traveling wheels, and the responsiveness of the tidal flat research machine when moving forward, backward and turning can be improved. In addition, when the tide is filled with tidal flats and floats with buoyancy, you can move on the surface of the water by scratching the water with the slats.

Next, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention.
Here, FIG. 1 is a side view of a tidal flat research machine according to an embodiment of the present invention, FIG. 2 is a plan view of the tidal flat research machine, FIG. 3 is a front sectional view of the tidal flat research machine, and FIG. , (B) are explanatory views of the fuselage according to the modification, respectively, and FIG. 5 is an explanatory view of the differential gear mechanism of the tidal flat investigation machine.

As shown in FIGS. 1 to 3, the tidal flat investigation machine 10 according to an embodiment of the present invention is for traveling on the front side of the left and right rotational drive shafts 12, 13 where the shaft ends are exposed from the left and right sides of the body 11. The wheels 14 and 15 are respectively attached, and the body 11 has a solid body, for example, a rectangular parallelepiped body 16 made of foamed resin, and a reinforcing covering portion 17 that covers the surface of the body 16. . Details will be described below.

The resin forming the body 16 is, for example, a hard foamed polystyrene having a foaming rate (magnification) of 18 to 25 (for example, 20) times. By using a rigid foamed polystyrene, processability is improved, making the airframe 16 easy, and reducing the weight of the airframe 16. For this reason, the tidal flat survey machine 10 becomes light and easy to carry. Furthermore, since hard foamed polystyrene easily dissolves in an organic solvent, volume reduction at the time of disposal is easy, and no harmful substances such as dioxin are generated at the time of incineration, and the burden on the environment is small.

The reinforced covering portion 17 includes a water-resistant base layer 18 attached to the surface of the body 16 and a fiber reinforced plastic layer 19 attached to the surface of the base layer 18. Here, the water-resistant base layer 18 may be, for example, a plywood specially designed for structural plywood in which a veneer is bonded with a phenolic resin (generally referred to as a water-resistant veneer plate and is always in a wet state. Can be used, and the fiber reinforced plastic layer 19 is made of glass fiber reinforced plastic formed by laminating a glass fiber cloth for reinforcement using a resin (for example, epoxy resin). it can. In addition, the thickness W of the base layer 18 is 2 to 5 mm, for example, and the thickness T of the fiber reinforced plastic layer 19 is 1 to 3 mm, for example.

As shown in FIG. 4 (A), rows of small recesses 54 (for example, the diameter of the opening is 20 to 100 mm and the depth is 3 to 10 mm) are arranged at regular intervals on the side and bottom of the body 11a below the water line. (For example, 20-100 mm) may be provided. As a result, the generation of Karman vortices is reduced, the propulsive force is improved, and the movement on the water surface is further facilitated. Here, the formation of the small recesses 54 can be performed simultaneously with the formation of the fiber reinforced plastic layer 55 by using a reinforcing cloth in which a hole array is formed. As shown in FIG. 4B, when forming deep small recesses 56 in the body 11b, 58 rows of holes are provided in the base layer 57 below the positions where the 56 rows of small recesses are formed, It can be formed by providing a fiber reinforced plastic layer 59 using a reinforcing cloth in which a hole row aligned with the hole 58 row is formed on the formed base layer 57.

When the airframe 16 (the fuselage 11) is viewed in plan, the longitudinal direction of the airframe 16 is the front-rear direction of the tidal flat survey machine 10, and a recess 20 is formed in front of the center in the front-rear direction. A source 21 is arranged. As a result, the center of gravity of the body 11 can be lowered, and the front side of the body 11 can be prevented from floating when the body 11 moves forward, and stable straightness can be ensured in the body 11. Here, for example, an engine, an electric motor, or a hydraulic motor can be used as the rotational power source 21.

In addition, support pillars 22 to 26 and 27 to 31 are erected in the front-rear direction on the left and right edges of the upper surface of the body 11, and the support pillars 22 to 31 are horizontally arranged along the edge of the upper surface of the body 11. It is connected by handrails 32 and 32a. In addition, the support | pillars 23, 24, 28, and 29 erected on both the left and right sides of the rotational power source 21 are formed longer than the other support pillars 22, 25 to 27, 30, and 31, and between the support columns 23 and 24 and the support column 28, On the upper side of the handrail 32b between 29, crosspiece members 33 and 33a are respectively provided. As a result, a top plate (not shown) can be supported by the crosspiece members 33 and 33a, and an investigation device (for example, a GPS position measurement device and a movement guide device) can be placed on the top plate.

As shown in FIG. 5, the power shaft 34 of the rotational power source 21 is connected to the left and right rotational drive shafts 12 and 13 via a differential gear mechanism 35. Here, the differential gear mechanism 35 meshes with a drive pinion 36 provided on the power shaft 34, and a ring gear 37 through which, for example, the left rotational drive shaft 12 penetrates the central portion, and the left and right rotational drive shafts 12, 13. The side gears 38 and 39 that are connected to the ring gear 37 and the ring gear 37 are respectively attached to the central portion of the ring gear 37 and accommodate the side gears 38 and 39 and the pair of differential gears 40 and 41 that connect the side gears 38 and 39 rotatably. 42.

An operation handle 46 having left and right handles 44 and 45 branched left and right is attached to the upper portion of the frame 43 of the rotational power source 21. Differential gears for the side gears 38 and 39 are attached to the left and right handles 44 and 45, respectively. Left and right clutch levers 47 and 47a for operating a clutch mechanism (not shown) that engages and disengages 40 and 41 are provided. Therefore, when the differential gears 40 and 41 are simultaneously meshed with the side gears 38 and 39, the differential gears 40 and 41 do not rotate, and the frame body 42 rotates together with the ring gear 37, and the left and right rotation drive shafts 12 are rotated. , 13 can rotate and go straight.

Here, when only one differential gear 40 meshes with the side gears 38 and 39, the differential gear 40 rotates and a reverse rotational force acts on the right rotational drive shaft 13, and the left rotational drive shaft 12. The rotational speed of the right rotation drive shaft 13 decreases with respect to the rotational speed of the rotation, and a right turn occurs. Further, when only the other differential gear 41 is engaged with the side gears 38 and 39, the differential gear 41 rotates, the right rotation drive shaft 13 rotates excessively, and the rotation speed of the left rotation drive shaft 12 is increased. On the other hand, the number of rotations of the right rotation drive shaft 13 increases, and a left turn occurs.
The differential gear mechanism 35 is not limited to the above-described configuration, and a differential gear mechanism having another known configuration can also be used.
In addition, the differential shaft mechanism 35 is not used, and the left and right rotary drive shafts 12 and 13 are turned on and off by operating the left and right clutch levers 47 and 47a. 34 can also be connected. In this case, by operating the left clutch lever 47 (right clutch lever 47a) to disconnect the left rotation drive shaft 12 (right rotation drive shaft 13) and the power shaft 34, the right rotation drive shaft 13 (left rotation drive shaft). Only 12) rotates and can turn left (turn right).

The front sides of the left and right rotary drive shafts 12 and 13 are respectively supported by bearings 48 and 49 attached to the left and right sides of the recess 20 formed in the body 11, and the front portions of the left and right rotary drive shafts 12 and 13 are supported. The traveling wheels 14 and 15 are respectively connected to the vehicle. Here, the traveling wheels 14, 15 are connected to the ends of the left and right rotation drive shafts 12, 13, respectively, and a plurality of support members are coaxially connected to the connecting ring 50. An outer ring member 52 provided via 51, and a plurality of blades 53 that are attached in a partially protruding state at a predetermined pitch with respect to the outer periphery of the outer ring member 52, and whose tip part bites into the surface of the tidal flat during rotation. And have. In addition, the shaft ends of the left and right rotation drive shafts 12 and 13 are disposed so as to be exposed from notches provided on both sides of the body 11.

Next, the operation of the tidal flat survey device 10 according to an embodiment of the present invention will be described.
Since the foam 16 is made of foamed resin, the airframe 16 is watertight. Since the entire body is solid, water does not accumulate inside the airframe 16 even if a hole or crack occurs in the airframe 16, and the body 11 can be easily made into a non-sinkable structure. If the water level rises due to the tide, you can float with buoyancy. The blades 53 of the traveling wheels 14 and 15 are attached in a partially projecting state obliquely with respect to the outer periphery of the outer ring member 52, and the tip portion thereof bites into the surface of the tidal flat during rotation. , 15, the reaction force received from the tidal flat can be effectively received by the slats 53, and the forward, reverse, and turning operations can be performed quickly. Furthermore, when the tide is filled with floating tideland, the slats 53 can effectively scrape the water and can easily move on the water surface.

By covering the surface of the airframe 16 with the reinforced covering portion 17, it is possible to prevent the surface layer portion of the body 11 from being damaged when a load (for example, impact force) is applied to the surface of the body 11. In this case, it is possible to prevent the airframe 16 from being worn directly. And while using the tidal flat survey machine 10, the lower part of the fuselage 11 is in contact with the tidal flat and gradually wears and the base layer 18 appears on the surface, so that the location where the fiber reinforced plastic layer 19 disappears can be accurately grasped. Thus, the fiber reinforced plastic layer 19 can be reliably repaired. For this reason, it is possible to prevent the airframe 16 from being worn directly, and to extend the life of the tidal flat survey machine 10.

Further, since the power shaft 34 of the rotational power source 21 and the left and right rotational drive shafts 12 and 13 are connected via the differential gear mechanism 35, the side gears 38 and 39 of the differential gear mechanism 35 are connected. The differential gears 40 and 41 can be engaged and disengaged by clutch operation, and the rotational speeds of the left and right rotational drive shafts 12 and 13 can be easily differentiated, and the tidal flat survey machine 10 can be smoothly turned. be able to.

As mentioned above, although embodiment of this invention was described, this invention is not limited to this embodiment, The change in the range which does not change the summary of invention is possible, Each above-mentioned implementation is possible. The case where the tidal flat survey machine of the present invention is configured by combining some or all of the forms and modifications is also included in the scope of the present invention.
For example, the tidal flat survey machine can be applied not only to tidal flats, but also to wetlands or soft mud areas that exist in ponds, landfills, estuaries, and the like.
Further, the reinforced covering portion is composed of one water-resistant base layer and one fiber-reinforced plastic layer, but a plurality of fiber-reinforced plastic layers are provided in places where wear is likely to occur during traveling, such as the bottom of the fuselage. It may be.

It is a side view of the tidal flat investigation machine which concerns on one embodiment of this invention. It is a top view of the tidal flat investigation machine. It is a front sectional view of the tidal flat survey machine. (A), (B) is explanatory drawing of the fuselage | body which concerns on a modification, respectively. It is explanatory drawing of the differential gear mechanism of the tidal flat investigation machine.

Explanation of symbols

10: Tidal flat survey machine, 11, 11a, 11b: Body, 12: Left rotation drive shaft, 13: Right rotation drive shaft, 14, 15: Traveling wheel, 16: Airframe, 17: Reinforced coating, 18: Underlayer , 19: fiber reinforced plastic layer, 20: recess, 21: rotational power source, 22-31: support, 32, 32a, 32b: handrail, 33, 33a: crosspiece member, 34: power shaft, 35: differential gear mechanism , 36: drive pinion, 37: ring gear, 38, 39: side gear, 40, 41: differential gear, 42: frame, 43: frame, 44: left handle, 45: right handle, 46: operation handle, 47: left Clutch lever, 47a: right clutch lever, 48, 49: bearing, 50: coupling ring, 51: support member, 52: outer ring member, 53: vane plate, 54: small recess, 55: fiber reinforced plastic , 56: small recessed, 57: base layer, 58: hole, 59: fiber-reinforced plastic layer

Claims (4)

In the tidal flat survey machine that travels on the tidal flat with the traveling wheels attached to the front side of the left and right rotation drive shaft where the shaft end is exposed from the left and right of the fuselage,
A tidal flat survey machine characterized in that the fuselage is made of foamed resin and has a solid body as a whole and a reinforced covering portion covering the surface of the fuselage. 2. The tidal flat survey machine according to claim 1, wherein the reinforcing covering portion includes a water-resistant base layer attached to a surface of the airframe and a fiber reinforced plastic layer attached to the surface of the base layer. A tidal flat survey machine. 3. The tidal flat survey machine according to claim 1, wherein the left and right rotational drive shafts are power of a rotational power source disposed in a recess formed in front of the front-rear direction center of the trunk. A tidal flat survey machine that is connected to the shaft through a differential gear mechanism. The tidal flat investigation machine according to any one of claims 1 to 3, wherein the traveling wheels are connected to end portions of the left and right rotation drive shafts, and are coaxial with the connection rings. An outer ring member provided on the connecting ring via a plurality of support members, and attached to the outer ring member in an obliquely partially protruding state with respect to the outer periphery of the outer ring member, and its tip part bites into the surface of the tidal flat during rotation A tidal flat survey machine characterized by having a plurality of blades.

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