JPH0463709A - Water-surface propelling device - Google Patents

Abstract

PURPOSE:To enable directional control on a water surface as in controlling a steering wheel by connecting the steering wheel to respective valves in right and left branch-off steering pipes, which are extended to the oblique rear of a body on the way to a discharge pipe tending to the rear of the body connected to a pump operated by a propelling device. CONSTITUTION:A water-surface propelling device 8 for a riding-type 4-wheel vehicle constructed as an amphibian vehicle is connected to an engine 47 via a transmission 48 and provided with an axial pump 52 which delivers water jet driven by the rotation of a transmission shaft 51 rotatable integrally with a drive shaft 50 via a clutch 49. It is also provided with a suction pipe 53 connected to the axial pump 52 and a discharge pipe 55 with a nozzle 54 fitted to the end thereof, a left steering pipe 56 and a right steering pipe 57 extended to the oblique rear of the body 4 in branch off to the left and to the right on the way to the discharge pipe 55. Valves 54a, 56a, 57a provided inside the left steering pipe 56 and the right steering pipe 57 are controlled to open by a steering control mechanism 58 in response to the steering angle of a steering wheel 19.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a water propulsion device for propelling various types of water vehicles, such as T7 hulls and amphibious vehicle bodies, on water. be.

[Prior Art] As shown in Japanese Utility Model Application No. 2-29892, this type of device is equipped with a steering/naft that rotates left and right in conjunction with the steering in the discharge pipe of a pump driven by an engine. Water-no-enoto propulsion devices are known.

Moreover, as shown in Japanese Patent Application Laid-Open No. 58-8413,
Wheels are provided so that they can be rotated independently by the Ennon, and the difference in rotation can be used for steering during land travel, and pumps that operate in conjunction with these wheels are provided, and each pump is used to provide each discharge on the left and right sides of the vehicle body. The amount of water discharged from the left and right discharge pipes is controlled by discharging water from the pipes, propelling the vehicle body by rotating the wheels, and operating the brake with a lever to create a difference in the rotation of the wheels. There is something that can be used to steer left and right.

[Problem to be solved by the invention E] In the former device described above, in order to operate the steering nozzle and make it easier to turn in the steering direction, a structure is required that reduces the resistance that the hull receives from the water. The underwater structure of the ship is complicated, and a ship with a large hydraulic resistance requires a larger engine output, resulting in an increase in overall weight.

In addition, the latter device requires a pair of left and right propulsion systems and operation systems consisting of pumps, discharge pipes, brakes, levers, etc., corresponding to the left and right wheels that rotate independently, and is complex in structure. It is assumed that it is difficult to control the direction by steering with the left and right levers and requires some getting used to, compared to steering with the steering wheel in a normal vehicle.

[Top Means for Solving the Problems] The present invention has been made to solve the above problems, and includes a steering handle, a propulsion power device, and a water intake pipe operated by the propulsion power device. and a pump connected to a discharge pipe facing rearward of the body, a left steering pipe and a right steering pipe branching from the middle of the discharge pipe to the left and right and extending diagonally rearward of the vehicle body, the discharge pipe, and the left steering pipe. Each valve is provided inside the pipe and the right steering pipe and adjusts the opening degree of these internal channels, and the opening degree of each valve is adjusted so that the hottie is steered in accordance with the steering angle of the handle. The vehicle is characterized by comprising a steering control mechanism for controlling the vehicle.

[Function] According to the water propulsion device of the present invention, when the pump is operated by the propulsion power device, a water stream is ejected from the water intake pipe to the rear of the body through the discharge pipe, and the body moves forward. The control mechanism adjusts the amount of water ejected from the left and right steering tubes according to the steering angle of the steering wheel, and changes the direction of the body according to the steering angle of the steering wheel.

Therefore, there is a propulsion system, which has a simple structure such as a propulsion power unit and a pump equipped with a water suction pipe and a discharge pipe, and also has a simple structure that feels similar to steering the steering wheel of a normal vehicle. You can control the direction.

[Practical Embodiments] Hereinafter, embodiments in which the present invention is applied to a straddle-type four-wheeled motor vehicle configured as an amphibious vehicle and a large and small water jet boat will be described with reference to the drawings.

FIG. 1 shows the straddle-type four-wheeled motor vehicle (hereinafter simply referred to as four-wheeled motor vehicle) j, which is an amphibious vehicle capable of traveling not only on land, including rough terrain, but also on water. As shown in FIG. 2, this four-wheeled motor vehicle 1 includes a body 4 consisting of a gutter-shaped body body 2 having buoyancy and a pipe frame 3 assembled around this body body 2;
The water vehicle according to this embodiment shown in FIGS. 8 and 9 includes front wheels 5 and rear wheels 6 for running provided on both sides of the body 4, and a body cover 7 provided to cover the upper part of the body 4. The propulsion device 8 allows the vehicle to travel on land and water.

The body main body 2 has a rectangular parallelepiped shape that is long from front to back, but the lower part of the rear part (the right side in FIG. 2) is formed obliquely, and a bulge part 9a is formed in the center, and the upper end A collar 9b that spreads outward is formed on the periphery. In addition,
As shown in FIG. 3, this body main body 2 has a double structure made by blow molding or the like, and a foaming agent 10 is injected inside to improve buoyancy.

The pipe frame 3 includes an upper frame 11 extending along the collar 9 of the body main body 2, a pair of left and right side frames 12, 12 extending back and forth along the side surface of the body main body 2 and spanning the front and rear ends of the upper frame 11, Frame 12・
A steering support plate 13 connecting the front part of the steering wheel 12;
At the front, there are an upper frame 11 and a side frame 12.
12, and the upper frame 11 at the same position as these vertical frames 14, 14.
It consists of a steering support bar 15 that connects the left and right parts of the steering wheel, and cross members 16 and 17 that connect the side frames 12 and 12 at the rear, and these are assembled by being fixed to each other by welding or the like. Incidentally, a bumper 18 is welded to each side frame 12.

The body main body 2 is housed inside the pipe frame 3 to form an Oti 4 of the four-wheeled motor vehicle 1. To assemble this body 4, remove the steering support bar 15 (
After assembling everything, the main body 2 is housed inside, and then the steering support bar 15 is passed through the insertion holes 2a and 2a made in the main body 2, and both ends of the bar are welded to the upper frame) 1. Ru. With the main body 2 accommodated in the pipe frame 3 in this way, the collar 9 of the main body 2 is placed on top of the upper frame 11, and the sight frames 12 and 12 are placed in contact with the front, bottom and rear surfaces of the main body 2. There is.

A handle 19 constituting the water propulsion device 8 is supported by the steering support plate 13 and the steering support bar 15 of the pipe frame 3. That is, the steering/set 20 has one handle fixed to its upper end, or the bracket 15a fixed to the steering support bar 15 and the through hole 2 drilled in the bottom of the main body 2.
b, and its lower end, as shown in Figure 4, to 7.
It is attached to the steering support plate 13 via the length 2i, and thereby the steering wheel 19 or the pipe frame 3
It is rotatably attached to.

The through hole 2b is liquid-tightly closed by a nozzle 22.

Note that a headlight 23 is attached to the steering/set 20.

As shown in FIG. 2, the vehicle body cover 7 is made of a material such as resin and includes an upper plate portion 24 shaped to cover the upper part of the body 4, and a side plate portion 25 extending downward to cover the side portions of the body 4. 2
5, front and rear fender parts 26 and 27 that cover both sides of the front wheel 5 and rear wheel 6, and a step part 28 that connects the front and rear fender parts 2G and 27, and is formed integrally with the upper plate part. An opening 24a is formed in the center of 24, and
A notebook 29 on which a driver or a driver is seated is mounted with its negative end edge hinged/connected to the upper plate portion 24 so that the opening 24a can be opened and closed. Further, an air inlet 30 that opens forward from the inside of the vehicle body cup 29 is formed in the front part of the upper plate part 24, and an air inlet 30 that opens forward from the inside of the vehicle body cup 29 is formed in the upper plate part 24 in front of the steering wheel 1. Through hole 24b that passes through ifft 20
It's open.

Note that the fuenta portions 26 and 27 are similar to those shown in FIGS. 5 and 7.
As shown in the figure, hollow parts 26a and 27a are formed by means such as blow molding or pasting together the ends of two materials, and a foaming agent 31 is injected into these hollow parts 26a and 27a to form a car body. The cover 7 is given buoyancy.

As shown in FIGS. 5 and 7, this vehicle body cover 7 is placed over the body 4, sandwiching a cushioning material 32 such as a comb fixed on the collar 9 of the body main body 2. It is detachably fixed to the body 4 by fixing means such as a bolt stop or a bolt stop.

The procedure for assembling the body main body 2, pipe frame 3, and vehicle body cover 7 is as described above, with the steering support bar 15 not fixed, the body main body 2 is housed in the vibe frame 3, and then the steering support is assembled. Fix the bar 15 to the pipe frame 3, then attach the body cover 7 to the hottie 4, and then insert the steering wheel/set 20 attached to the handle 19 into the through hole 24+) of the body cover 7 and the through hole 2b of the body body 20. Attach to the through pipe frame 3.

Each of the front wheels 5 is formed by mounting a balloon tire 5b, which is a wide low-pressure tire, on the outer periphery of a wheel 5a.
As shown in FIG. 5, each is attached to the body 4 by a front wheel support mechanism 33.

The front wheel support mechanisms 33 form a pair of left and right front wheels 5 to support each front wheel 5. As shown in FIG. A tie rod 34 extending through the through hole 2c of the body main body 2, a swing rod 35 pin-coupled to the tip of the tie rod 34 so as to be able to swing up and down, and each side frame of the pipe frame 3. An arm 36 is pin-coupled to a pair of front and rear brackets 12a fixed to the front part of the knuckle holder 37 so as to be able to swing vertically. The frame is extended between a knuckle 38 which is rotatably supported around the direction and connected to the swing rod 35 by a pin, and a base end of the knuckle 38 and a bracket lla fixed to the front part of the upper frame 11 of the pipe frame 3. It is composed of a John unit 39 and a John unit 39.

The front wheel 5 is fixed to the knuckle 38 by passing the wheel 5a through a port 38a that is integrally provided with the knuckle 38 and extending outward in the width direction of the body 4, and tightening the nut to the port 38a.

As shown in FIG. 6, on the outside of the through hole 2C of the body main body 2 through which the tie rod 34 passes, there is a boot that liquid-tightly closes the through hole 2c so that the movement of the tie rod 34 can be followed. 40 is fixed.

According to the front wheel support mechanism 33, in response to the steering of the handle 19, the steering shaft 20 and the tie rod 34
, swing rod 35, knuckle holter 37, knuckle 38
Both front wheels 5 are steered via.

Each rear wheel 6 is similar to the front wheel 5, and has a balloon tire 6b, which is a wide low-pressure tire, mounted on the outer periphery of a wheel 6a, and a hub 6c integrally attached to the center of the wheel 6a. As shown in FIG. 7, each is attached to the body 4 by a rear wheel support mechanism 41.

As shown in FIG. 7, the rear wheel support mechanism 41 includes a main axle 42 extending in the vehicle width direction at the rear of the body 4 and having both ends passing through the through hole 2d of the body main body 2; Universal 7 joint 4 on both ends
The four throats 44 connected via 3 and the pipe frame 3
An arm 45 is pin-coupled to the bracket yz2b fixed to the rear part of the side frames 12, 12 and extends diagonally rearward so as to be able to swing up and down, and the bracket 11b and the arm 4 are fixed to the rear part of the upper frame 11 of the pipe frame 3.
5 The rack is passed over the tip of the 4
6, and the tips of a rod 44 and an arm 45 are attached to the hub 6C of the rear wheel 6.

According to the rear wheel support mechanism 41, the rotation of the main axle 42 is transmitted to each rear wheel 6 via each of the four throats 44.

The four-wheeled motor vehicle 1 described above floats on water with the driver seated on the trunk 29 due to the buoyancy of the main body 2, the balloon tires 5b, 6b of the front wheels 5 and the rear wheels 6, and the body cover 7. is possible.

In this way, the water propulsion device 8 enables running and steering even when floating on water or on land.

As shown in FIGS. 8 and 9, this water propulsion device 8 includes the handle 19, an engine (propulsion power device) 47 housed in the front part of the main body 2, and a convertible engine 47. a drive shaft 50 connected to the main axle 42 via a clutch 49; a transmission shaft 51 rotatable integrally with the drive shaft 50 via the clutch 49; Activated by rotation of 51 on the water/
An axial flow pump 52 that sprays a water flow, a water suction pipe 53 connected to this axial flow pump 52, a discharge pipe 55 provided at the tip of a nozzle 54, and a branch from the middle of the discharge pipe 55 to the left and right. A left steering tube 56 and a right steering tube 57 extend diagonally rearward of the potty 4, and a valve is provided inside the nozzle 55, left steering tube 56, and right steering tube 57 to adjust the opening degree of these internal flow paths. 54a, 56a, 57a, and each valve 54a, 56 depending on the steering angle of the handle 19.
a, and a steering control mechanism 58 that controls the opening degree of 57a.

A carburetor 59 and an air cleaner 60 are connected to the front of the engine 47. This air cleaner 60 is provided with an air introduction hole 60a extending toward the air introduction port 30 of the vehicle body cover 7.

Further, a fuel tank 61 having an oil supply pipe 61a is disposed at the rear of the engine 47, and the fuel in the fuel tank 61 is sent to the carburetor 59 by a pump (not shown). In addition, at the rear of the engine 47,
An exhaust pipe 62 extending through the through hole 2e of the body main body 2 is connected to the rear of the vehicle body. Note that a muffler 63 is attached to the tip of the exhaust pipe 62 so as to face upward.

The clutch 49 controls the rotation of the drive shaft 50.
It is configured to switch between the main axle 42 and the transmission/yaft 51, and can be operated by a clutch lever 49a attached to the handle 19.

The discharge pipe 55 extends rearward along the length direction of the body 4 at the center in the width direction of the body 4, passes through a through hole 2f formed at the lower rear of the hotty body 2, and has the nozzle at its tip. 54a is provided.

The left steering pipe 56 and the right steering pipe 57 communicate with the discharge pipe 55, and extend in the diagonal left and right directions of the body 4 in a substantially bilaterally symmetrical manner with respect to the discharge pipe 55.

The left steering tube 56 and the right steering tube 57 pass through a through hole 2g formed in the bulging portion 9a of the main body 2.

The water suction pipe 53, the /glue 54, the left steering pipe 56, and the right steering pipe 57 are set at their respective openings or at positions such that they are submerged in the water while floating on the water as described above. In this state floating on the water, water is sucked up from the water suction pipe 57 by the operation of the axial pump 56, and the water passes through the drain pipe 59 and is jetted from the nozzle 58 or each steering pipe 60, 61. Spouts out as a stream,
As a result, the four-wheeled motor vehicle 1 travels on water.

As described above, the nozzle 54 of the discharge pipe 55, the left steering pipe 56, and the right steering pipe 57 have valves 54a that adjust the opening degrees of the channels in these nozzles 54, the left steering pipe 56, and the right steering pipe 57. 56a and 57a are respectively attached, but these respective valves 54a, 56a, 5
The opening degree of 7a is controlled by the steering control mechanism 58 as follows.

That is, when the handle 19 is moving straight, the nozzle 5
The valve 54a of No. 4 is fully open, and the valves 56a and 57a of each steering pipe 56, 57 are fully open. At this time, the axial flow pump 5
The water flow generated by the four-wheeled motor vehicle 1 is ejected only from the nozzle 58 through the discharge pipe 55, so that the four-wheeled motor vehicle 1 moves straight.

Also, when the handle 19 is turned to the left, the valve 54a of the nozzle 54 and the valve 56a of the left steering tube 56 are closed, and the valve 57a of the right steering tube 57 is opened, and a stream of water is spouted only from the right steering tube 57. As a result, the four-wheeled motor vehicle 1 turns to the left. Also, if you turn the handle 19 to the right, /Guru 5
4 valve 54a and the valve 57a of the right steering pipe 57 are closed, and the valve 56a of the left steering pipe 56 is open, and the left steering pipe 5
A stream of water is ejected only from 6, causing the four-wheeled motor vehicle 1 to turn to the right.

In this way, the course of the four-wheeled motor vehicle 1 is changed in response to the steering wheel 19 even when traveling on water, in the same way as when traveling on land.

According to the water propulsion device 8 installed in the above-mentioned four-wheeled motor vehicle 1, there is a propulsion system 1, which is a simple one such as an ennon 47 and an axial flow pump 52 equipped with a water suction pipe 53 and a discharge pipe 55. Because of this, it has a simple structure and is extremely advantageous in terms of maintenance and cost. Furthermore, even when driving on water, the direction can be controlled just like when driving on land, with the feeling of steering the steering wheel of a normal vehicle, which is very convenient.

In addition, sufficient buoyancy is generated by the body body 2, each balloon tire 5a, 5b, and the vehicle body cover 7, and
Since these are all components of the vehicle body, the vehicle body does not become unnecessarily large, so there is no inconvenience when handling it, and the vehicle can be easily driven on land or water. Furthermore, when traveling on land, the three members that generate the buoyancy do not get in the way at all, so there is no problem with the ability to travel on rough terrain.

Furthermore, a water propulsion device 8 consisting of an engine 47, etc.
is housed inside the main body 2, so there is no risk of flooding, and the main body 2 is surrounded by the vibe frame 3, which reduces external forces received especially when driving on rough terrain and prevents damage. .

Note that, as shown in FIG. 10, the transmission 48 and the axial flow pump 52 may be directly connected through a transmission shaft 51 so that the rotation of the engine 47 is always transmitted to the axial flow pump 52.

11 to 13 show a large and small water jet boat to which the water propulsion device of the present invention is applied.

This leisure boat 70 has a hull cover 72 mounted on a hull 7, a seat 73 at the rear of the hull 71, and can be propelled and steered on water by a water propulsion device 74 according to the present invention. It looks like this.

This water propulsion device 74 includes a handle 75 , an engine (propulsion power device) 76 housed in the center of the hull 71 , and is rotated by the engine 76 and extends rearward along the center line in the width direction of the hull 71 . A drive shaft 77, an axial pump 78 integrally attached to the rear end of the drive shaft 77, and a dopipe 79 provided at the rear of the hull 71 with an axial pump 78 disposed in the middle;
From the middle of Je Nodopipe 79, it branches to the left and right and the hull 7
A left steering tube 80 and a right steering tube 81 extending diagonally backward from 1
and these jet pipes 79 and left and right steering pipes 80.
．． Valve 79a, 80a, 81a which is provided inside 81 and adjusts the opening degree of these internal channels, and a steering control mechanism 82 which controls the opening degree of each valve 79a, 80a, 81a according to the steering angle of handle 75. It is composed of. The rotation of the engine 76 is adjusted by an accelerator (not shown) attached to the handle 75.

The jet pipe 79 is along the center line in the width direction of the hull 71, and the water sucked up from the opening 83a to the bottom of the ship by the operation of the axial pump 78 is connected to the discharge port 83 facing rearward.
A jet water stream is discharged from b.

The drive shaft 77 liquid-tightly penetrates the jet pipe 79, and the axial flow pump 78 is disposed within the jet pipe 79. The upstream side of the axial flow pump 78 is a suction side pipe (water suction pipe) 83A, and the downstream side is a discharge side. Pipe (discharge pipe) 83B
It is said that The left and right steering pipes 80.81 are branched from the discharge pipe 83B, and the valve 7
9a is provided at the rear of the discharge side pipe 83B.

According to this water propulsion device 74, like the previous embodiment,
The operation of the axial pump 78 in conjunction with the operation of the engine 76 causes the jet pipe 79 or each steering pipe 80.
A jet water stream is ejected from the water jet, thereby causing the four-wheeled motor vehicle 1 to run on water.

And each valve 79a, 80a, 81a provided in jet pipe 79, left steering pipe 80, and right steering pipe 81
By means of the steering control mechanism 82, when the handle 75 is in the straight-ahead state, the valve 79a of the jet pipe 79 is fully open, and the valves 80a and 81a of each steering pipe 80.81 are fully closed. At this time, the jet water flow generated by the axial pump 78 is ejected only from the jet pipe 79, so that the leisure boat 70 moves straight.

Also, if you turn the handle 75 to the left, the jet pipe 79
The valve 79a of the left steering pipe 80 and the valve 80a of the left steering pipe 80 are closed,
And the valve 81a of the right steering pipe 81 opens, and the right steering pipe 81
A stream of water erupts from the water, causing the leisure boat 70 to turn to the left.

Also, if you turn the handle 75 to the right, the jet pipe 79
The valve 79a of the right steering pipe 81 and the valve 81a of the right steering pipe 81 are closed,
And the valve 80a of the left steering pipe 80 is opened, and the left steering pipe 80 is opened.
A jet stream of water is ejected from the chisel, causing the leisure boat 70 to turn to the right.

In this manner, the course of the leisure boat 70 is changed in response to the steering wheel 75.

[Effects of the Invention] As explained above, according to the water propulsion device of the present invention,
A steering handle, a propulsion power device, a pump operated by the propulsion power device and connected to a water intake pipe and a discharge pipe facing the rear of the body, and a pump that branches to the left and right from the middle of this discharge pipe to the left and right of the vehicle body. A left steering tube and a right steering tube extending obliquely rearward, and valves provided inside the discharge tube, the left steering tube, and the right steering tube to adjust the opening degrees of these internal channels, and the! - a steering control mechanism that controls the opening degree of each of the valves so that the body is steered according to the steering angle of the steering wheel; Since it can be propelled by a single propulsion system consisting of a single propulsion system, its structure is simple, and it is extremely advantageous in terms of maintenance and cost, as well as being able to control the direction with the feeling of steering the steering wheel of a normal vehicle.

[Brief explanation of the drawing]

1 to 10 are diagrams showing one embodiment of the present invention, in which FIG. 1 is an overall perspective view of a straddle-type four-wheeled motor vehicle to which the embodiment is applied, and FIG. 2 is an exploded view thereof. 3 is a sectional view of the hotty body, FIG. 4 is a side view showing how the steering shaft is attached to the hotty, FIG. 5 is a front sectional view of the front of the vehicle body, and FIG. 6 is a sectional view of the hotty body. 7 is a front sectional view of the rear of the vehicle body, FIG. 8 is a perspective view of an embodiment of the water propulsion device housed within the main body, and FIG. 9 explains the drive system and steering system. FIG. 10 is a schematic plan view showing a modification thereof, and FIGS. 11 to 13 are views showing other embodiments of the present invention, and FIG. 11 is a schematic plan view showing a modification thereof. A partially sectional side view of a water jet type ship, FIG. 12 is a bottom view thereof, and FIG. 13 is a rear view thereof. 1.Saddle-type four-wheeled motor vehicle, 4. Hoti, 8.74.
...Water propulsion device, 19.75...Handle,
47.76..., Ennon (propulsion power unit), 52
．． 78... Axial flow pump, 53... Water suction pipe, 54a, 56a, 57a, 79a, 80a, 81a.
... Valve, 55 - Discharge pipe, 56 - Left steering pipe, 57 Right steering pipe, 58.82 - Steering control mechanism, 70 - Water jet type jar boat, 71
・・Hull (hoty), 83A ・・Suction side pipe (water suction pipe), 83B ・−Discharge side vibe (discharge pipe)
.

Claims (1)

[Claims] A water propulsion device for propelling a body such as a ship or car body floating on water, which includes a steering handle, a propulsion power device, a water intake pipe operated by the propulsion power device, and a rear part of the body. a pump connected to a discharge pipe facing toward the vehicle; a left steering pipe and a right steering pipe that branch from the middle of the discharge pipe to the left and right and extend diagonally rearward of the vehicle body; and the discharge pipe, the left steering pipe, and the right steering pipe. Each valve is provided inside the pipe and adjusts the opening degree of each of these internal flow paths, and the steering control mechanism controls the opening degree of each of the valves so that the body is steered according to the steering angle of the handle. A water propulsion device comprising: