JPS593038Y2 - Propulsion device for water play equipment - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a propulsion device for water play equipment.

As shown in FIG. 1, a case 2 containing a battery as a power source for self-propulsion is attached to a hull 1 inflated with air, and a handle 3 and a decorative hood 4 are attached to the top of this case 2. By suspending and supporting the propulsion device 5 on the lower surface of the boat, the player can grip the handle 3, lie on his stomach on the hull 1, and swim freely in the water play equipment.

In this case, it is desirable that the propulsion device 5 under the water surface be safe even if it hits an unintended obstacle.

This invention was devised in response to such a request.

This invention will be explained below based on the drawings.

FIGS. 2 and 3 are diagrams showing an embodiment of this invention.

First, to explain the structure, the lower end of the connecting vibro connected to the case 2 is screwed to a reduction gear case 7 to which a planetary gear is attached.

The submersible motor 8 is fitted and integrated with the reduction gear case 7, and the rotational speed of the submersible motor 8 is reduced by a planetary gear and transmitted to the propeller 9.

10 is a spinner that fixes the propeller 9.

A holder 11 having a plurality of arms 12 extending in the radial direction is fitted onto the outside of the reduction gear case 7 .

A notched groove 13 is formed in the holder 11, and this notched groove 13 is engaged and locked with the outer periphery of the connecting vibro, so that the holder 11 is prevented from rotating around the connecting vibro.

Using this arm 12, a motor protector 14 is attached to the connecting vibro from the opposite side of the holder 11, and a duct 15 that covers the propeller 9 and a duct protector 16 are attached to the outside thereof from the same direction as the holder. ing.

In this way, both protectors 14, 16 can be installed correctly and easily on the outside of the propulsion device 5.

21 is a crosspiece that forms a flow path 22 and protects the propeller 9, and 17 is a bolt and nut for attaching both protectors 14 and 16.

The motor protector 14 has a shape similar to a badminton shuttlecock, and an appropriate passage 18 is formed by the opposed openings of a number of curved ribs 14C that connect the head 14a and the flange portion 14b. .

Water reaching the propeller 9 enters through this passage 18 and escapes through a flow passage 22 of the duct 15.

A hole 20 for a set screw 19 is bored in the center of the head 14a of the motor protector 14, and the motor protector 14 is attached to the underwater motor 8 by screwing the set screw 19.

The duct 15 is made of a hard material, while the outermost motor protector 14 and duct protector 16 are both made of a flexible rubber-like elastic material.

Therefore, the propulsion device 5 assembled as shown in FIG.
As shown in FIG. 1, when the propulsion device 5 collides with an unexpected obstacle, such as another swimmer, while swimming using the water play equipment attached to the case 2 via the connected vibro. Since the impact force is absorbed and alleviated by the elasticity of the motor protector 14 or the duct protector 16, there is no risk of injury to other swimmers.

Further, the passage 18 and the flow path 22 are each formed by a curved rib 14.
Since it is restricted by C or the crosspiece 21, it becomes difficult for swimmers' hands, feet, fingers, stones, etc. to enter the propulsion device 5 from the passage 18 and the channel 22.

Therefore, limbs will not be injured, the propeller 9 will not be damaged by stones, etc., and seaweed etc. will be prevented from getting wrapped around the propeller 9, which will prevent the water play equipment from malfunctioning. Not at all.

In addition, since the propulsion device 5 engages and locks the outer periphery of the connected vibro in the cutout groove 13 of the holder 11, and the motor protector 14 and the underwater motor 8 are screwed together, there is no possibility of any unexpected obstruction. This propulsion device 5 will not be displaced even if it collides with the vehicle.

Therefore, there is no fear that the underwater toy equipment will move in a direction that the player does not expect, and therefore the player can enjoy swimming freely.

As is clear from the above description, according to this invention, a holder having a radially extending arm and a cutout groove is configured to engage and lock the cutout groove with the outer periphery of the connecting pipe. A motor protector having elasticity is fitted onto the reduction gear case and has an appropriate passage formed from the opposite side of the holder to the connecting pipe, and the arm is sandwiched from the same direction as the holder. By assembling a duct covering a propeller and a resilient duct protector disposed outside the duct, and fixing the motor protector to the underwater motor, a propulsion device for a water play equipment equipped with a protector is obtained. Even if this propulsion device hits an unexpected obstacle, the motor protector and duct protector will absorb and reduce the impact force, and if the obstacle is another swimmer, it will not cause any harm to that swimmer. I can't even do it.

Further, since the holder can be assembled with the holder sandwiched between the duct, the duct protector, and the motor protector, it can be assembled easily and correctly.

[Brief explanation of the drawing]

Fig. 1 is a side view of the water play equipment, Fig. 2 is a cross-sectional explanatory view showing the state of assembly of the propulsion device of the water play equipment according to an embodiment of this invention, and Fig. 3 is the assembly of the propulsion device of the water play equipment according to an embodiment of the invention. FIG. 2...Battery storage case, 6...
Connection pipe, 7... Reduction gear case, 8...
...Underwater motor, 11...Holder, 12
... Arm, 13 ... Notch groove, 14.
...Motor protector, 15...Duct, 16...Duct protector, 18...
····aisle.

Claims (1)

[Scope of Claim for Utility Model Registration] A water play equipment in which a reduction gear case connected to an underwater motor is suspended and supported by a connecting pipe attached to the lower surface of the battery housing case, and a propeller connected to the reduction gear case is rotated. In the propulsion device, a holder in which a radially extending arm and a notched groove are formed is fitted into the reduction gear case so that the notched groove and the outer periphery of the connecting pipe are engaged and locked, and A resilient motor protector with a suitable passage formed from the opposite side of the holder to the pipe;
Further, a duct covering the propeller and a resilient duct protector disposed outside the duct are assembled so as to sandwich the arm from the same direction as the holder, and the motor protector is fixed to the underwater motor. A propulsion device for water play equipment featuring: