JPS6121112Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to the improvement of toy ships.

Conventionally, various types of toy watercraft have been proposed, such as motorboats, passenger boats, and patrol boats, which are configured to navigate on water by installing a drive motor at a predetermined position inside a hull made of a material such as synthetic resin and connecting the drive shaft of this drive motor to the shaft of a screw propeller for propulsion mounted on the outside of the hull. These toys are widely used as children's toys.

However, in this type of ship toy,
Since the water-tight structure between the drive shaft of the drive motor passing through the hull and the hull is incomplete, there are drawbacks such as flooding during navigation, resulting in the boat being unable to travel or sinking.

Therefore, the inventor made many improvements and prototypes to create a toy boat that has a simple structure and can prevent navigational failure or sinking due to flooding, and as a result, he installed a rotary pump device inside the hull. The suction port of the device faces near the bottom of the ship, while the discharge port faces the outside of the ship, and the rotating shaft of the pump device is connected to the drive shaft of the drive motor via a gear mechanism to rotate the screw propeller for propulsion. It was discovered that the intended purpose could be achieved by configuring the rotary pump device to operate in synchronization with the

SUMMARY OF THE INVENTION Accordingly, a general object of the present invention is to provide a toy boat that has a simple structure and can prevent the toy from becoming unnavigable or sinking due to flooding.

In order to achieve the above-mentioned object, the present invention provides a toy boat in which a drive motor is disposed inside the hull and the drive shaft of the drive motor is connected to the shaft of a propulsion screw propeller disposed outside the hull. A rotary pump device is arranged inside the hull, the suction port of the pump device faces near the bottom of the ship, and the discharge port faces the outside of the hull, and the rotation shaft of the pump device is connected to the drive motor via a gear mechanism. It is characterized by being connected to the shaft.

In this toy boat, a gear pump or a vane pump can be suitably used as the rotary pump device, and if the rotary pump device is disposed at the stern portion, flooding during navigation can be quickly eliminated.

Other objects and advantages of the present invention will become more apparent from the following description.

Next, a radio-controlled motorboat toy will be described in detail as a preferred embodiment of the toy boat according to the present invention.

In FIG. 1, reference numeral 10 indicates the hull of a toy motorboat made of synthetic resin or the like, and at the front inside of this hull 10 is a wireless controller (not shown) constructed separately from the hull 10. A drive motor 12 driven by an operation output signal is disposed, and a drive shaft 14 of this drive motor 12 is connected to an end of a rotating shaft 18 of a propeller 16 disposed outside the hull 10 via a joint member 20. and connect. The rotation shaft 18 of the screw propeller 16 is connected to the support member 2
2, the axis of the rotating shaft 18 and the axis of the drive shaft 14 are aligned. Furthermore, a sealing member 24 is inserted in a portion where the rotating shaft 18 passes through the stern wall portion of the hull 10 to provide a watertight structure.

On the other hand, a gear pump 26 for water drainage is disposed inside the stern portion of the hull 10. That is, this gear pump 26 has a casing 28 made of synthetic resin material.
A pair of gears 30, 32 are disposed inside, and a suction port 36 of a suction pipe 34 extending from the side of the meshing portion of the gears 30, 32 faces the bottom of the hull 10, and a discharge port of a discharge pipe 38. 40 facing the outside of the hull 10 (see FIG. 2), and furthermore, connect one of the rotating shafts 42 and 44 of the gears 30 and 32 to the gear mechanism 4.
6 to the rotation shaft 18 of the screw propeller 16
The screw propeller 16 and the gear pump 26 move together as the drive motor 12 rotates.

In addition, in FIG. 1, reference numeral 48 is a rudder member that appropriately changes the sailing direction of the hull 10 based on an operation output signal from a wireless controller.

Next, the operation of the motor boat toy according to the present invention will be explained.

That is, when using the motor boat toy, after floating the hull 10 on the water surface, a wireless controller configured separately from the hull 10 is operated to operate the drive motor 1.
When the boat 2 is rotated, the rotational force is transmitted to the screw propeller 16 via the drive shaft 14 → the joint member 20 → the rotating shaft 18, and the hull 10 moves forward on the water surface. In this case, if it is desired to change the direction of movement of the ship, the rudder member 48 may be adjusted appropriately by operating the wireless controller, and if the ship is to travel backwards, the drive motor 12 is reversely rotated using the wireless controller.

When the hull sails on the water surface in this manner, it is unavoidable that water intrudes into the ship through the gap between the seal member 24 and the hull 10 or the rotating shaft 18, but this water is pumped out of the ship by the pumping action of the gear pump 26. Easily drained. That is, the rotational force of the drive motor 12 is transmitted from the drive shaft 14 to the joint member 20 to the rotating shaft 18.
It is also transmitted in the order of → gear mechanism 46 → rotating shaft 42,
As a result, the pair of gears 30 and 32 are rotated at high speed. Therefore, due to the high speed rotation of these gears 30 and 32, the water that accumulates on the bottom of the ship flows from the suction port 36 to the suction pipe 3.
4→casing 28→discharge pipe 38→discharge port 40, and it is possible to avoid inconveniences such as the boat being unable to navigate or sinking due to flooding. Furthermore, water that enters in the form of spray from the upper opening of the hull during navigation is also discharged by the pumping action of the gear pump, as described above.

As mentioned above, according to the toy boat of the present invention, water that enters the inside of the ship while it is running is drained out of the ship by the pumping action of the gear pump that works in conjunction with the propeller for propulsion, so that water cannot be navigated or sinks due to flooding. In addition to avoiding such inconveniences, even if the bow of the ship rises during navigation and water moves to the stern, the gear pump is located at the rear of the hull, so water can be quickly and reliably drained. It has advantages and its practical effects are extremely large.

Although the preferred embodiments of the marine toy according to the present invention have been described above, the present invention is not limited to these embodiments. For example, various rotary pumps such as a vane pump may be used instead of a gear pump, or Of course, various modifications can be made without departing from the spirit of the present invention, such as providing a drainage port on the side of the hull and connecting the discharge pipe of a gear pump to this drainage port.

[Brief explanation of the drawing]

Fig. 1 is an explanatory cross-sectional view of a radio-controlled motor boat which is a preferred embodiment of the marine toy according to the present invention, and Fig. 2 is an explanatory view showing the relationship between the hull of the motor boat shown in Fig. 1 and the gear pump. be. 10... Hull, 12... Drive motor, 14...
Drive shaft, 16... Screw propeller, 18...
rotating shaft, 20... joint member, 22... support member,
24... Seal member, 26... Gear pump, 28
...Casing, 30, 32...Gear, 34...
Suction pipe, 36...Suction port, 38...Discharge pipe, 40
... Discharge port, 42, 44 ... Rotating shaft, 46 ... Gear mechanism, 48 ... Rudder member.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A marine toy in which a drive motor is disposed inside the hull and the drive shaft of this drive motor is connected to the shaft of a propeller for propulsion disposed outside the hull, A rotary pump device is arranged inside the hull, the suction port of the pump device faces near the bottom of the ship, and the discharge port faces the outside of the hull, and the rotation shaft of the pump device is connected to the drive motor via a gear mechanism. A marine toy characterized by connecting drive shafts. (2) The toy boat according to claim 1, which uses a gear pump as the rotary pump device. (3) The first claim for utility model registration consists of using a vane pump as a rotary pump device.
Ship toys listed in section. (4) Claims 1 to 3 for utility model registration, which consist of installing a rotary pump device in the stern part
A marine toy as described in any of the paragraphs.