JPH0417832B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an underwater scooter used by divers in scuba diving and the like.

[Prior Art] In recent years, ski diving and the like have become widely popular as marine sports.

In scuba diving, the diving time and movement range vary depending on the diver's ability and other factors. However, regardless of whether you are a beginner or an experienced diver, all divers have the same desire to be able to cover a wider range of activities in a single dive.
In order to meet these demands, underwater scooters have been developed and put into practical use.

This underwater scooter automatically pulls you through the water, so you don't need to push it.
Compared to moving the diver himself using fins, air consumption can be saved and the range of action can be made wider.

In general, the configuration of this type of underwater scooter is disclosed in, for example, Japanese Patent Application Laid-open No. 60-22595, Japanese Utility Model Publication No. 51-47360, Japanese Utility Model Publication No. 49-33838,
As seen in Publication No. 110399, etc., it consists of a battery as a power source, a drive motor, a clutch mechanism, etc., and these are arranged in separate rooms within the housing.

[Problems to be Solved by the Invention] However, the structure of the conventional underwater scooter described above does not have a structure in which the inside of the housing is divided into blocks, which can be easily attached and detached. For this reason, when transporting the product, it is necessary to move it in a completely assembled state, which poses a problem of inconvenience in handling.

Furthermore, when installing or removing parts such as batteries or motors, the structure is not such that they can be easily installed or removed when assembling or disassembling the housing, and each must be done independently. . For this reason, there were problems such as poor workability.

The present invention has been made in view of the above-mentioned problems, and its purpose is to make it easy to handle during transportation, etc., and to easily perform maintenance inspections that involve disassembly and assembly work. Our goal is to provide an underwater scooter that looks like this.

[Means for Solving the Problems] To achieve the above object, the present invention will be described using the reference numerals used in the accompanying drawings corresponding to the embodiments. In the underwater scooter, the housing 2 is connected to a battery housing 3 in which one end 6 is closed and the other end 41 is open, and both ends are open, and the one end 43 is detachably attached to the open end 41 of the battery housing 3. A motor housing 4 is connected to and attached to the motor housing 4, and a propeller variable pitch dial 38 is rotatably attached to the rear end side, and one end side is detachably connected to the other end of the motor housing 4. A first partition plate 16 is provided between the clutch housing 5 to be attached, the first partition plate 16 which is removably provided with watertightness between the battery housing 2 and the motor housing 4, and the motor housing 4 and the clutch housing 5. The second partition plate 17 provided with watertightness
The interior of the housing 2 is divided into three parts, the watertight battery chamber A, the motor chamber B, and the clutch chamber C, and a first battery provided in the battery housing 2. a presser half 14; and a second battery presser, which is provided on the first partition plate 16 in correspondence with the first battery presser half 14 and holds the battery 13 together with the first battery presser half 14. a half body 15; and a motor holding frame 26 that is provided on the first bulkhead plate 16 and holds the motor 18 in correspondence with the other end side of the motor 18 whose one end side is attached to the second bulkhead plate 17. , as the battery housing 3 and the motor housing 4 are connected, the first and second battery presser halves 1
4 and 15, and the motor 18 can be attached to the motor holding frame 26 when the motor housing 4 and the clutch housing 5 are connected.

[Function] According to this configuration, a watertight detachable battery A chamber is formed between the battery housing 3 and the motor housing 4 with the first partition plate 16 interposed therebetween, and Second partition plate 1
A watertight, removable clutch chamber C is formed between the motor housing 4 and the clutch housing 5 in which the clutch housing 7 is interposed, and the first partition plate 16 and the second partition plate 17 form a clutch chamber C in the motor housing 4. A watertight and detachable motor chamber B is formed.

That is, since each of the housings 3, 4, and 5 forming the respective chambers A, B, and C is made into blocks, each block can be disassembled and handled as necessary, for example, during transportation.

Furthermore, when inspecting the inside of the housing 2, only the necessary sections between the housings 3, 4, and 5 can be disassembled and inspected, making the work easier and reducing time.

Further, as the battery housing 3 and the motor housing 4 are connected, the battery stay 13 can be held between the first and second battery press halves 14 and 15, and as the motor housing 4 and the clutch housing 5 are connected, Motor 1 is attached to the motor holding frame 26.
8 is attached, the battery 13 and motor 18 can be attached and detached at the same time as the respective housings 3, 4, and 5 are attached and detached from each other, improving work efficiency.

[Example] Hereinafter, an example of the present invention will be described in detail using the drawings.

1 to 4 show an embodiment of an underwater scooter according to the present invention.

1 to 4, the underwater scooter 1 has a housing 2 divided into three parts: a battery housing 3 at the front, a motor housing 4 at the center, and a clutch housing 5 at the rear. These are removably connected to each other. In addition, these housings 2
In this embodiment, ABS resin, which is a synthetic resin material, is used as the material for the battery housing 3, motor housing 4, and clutch housing 5, which constitute the battery housing 3, motor housing 4, and clutch housing 5, but other resin materials may of course be used.

To explain in more detail, battery housing 3
is formed into a substantially cap shape with the front side closed and the rear side open, and is also formed into a streamlined shape that gradually descends as it moves toward the front end 6 in order to reduce resistance in the water. .
Further, a bumper and a carrying handle 7 are integrally formed at the closed front end 6 of the battery housing 3. Further, a left handle 10 and a right handle 11 are attached to the left and right sides 8 and 9 of the battery housing 3, respectively, and the right handle 11 is provided with a starter switch 12 (see FIG. 1). There is.

On the other hand, a battery presser half 14 is integrally formed inside the battery housing 3. This battery presser half 14 is formed as a substantially U-shaped recess with the front side closed and the rear side open, and the front end of the battery 13 is press-fitted into this recess so that it can be elastically held. It's summery.

On the other hand, the open end 41 of the battery housing 3 has an uneven portion 42 formed inside the open end 41, and an O-ring 45 for sealing is formed on the uneven portion 42 over the entire circumference. .
On the contrary, on the outside of the open end 41, lock hooks 47 are scattered in the circumferential direction and arranged approximately every 90 degrees, that is, every 4
It is formed in places.

Next, the motor housing 4 is attached to the open end 41 side of the battery housing 3 so as to be continuous with the battery housing 3, and the motor housing 4 is gradually lowered toward the rear end in order to reduce resistance in the water. It is formed into a streamlined shape.

Further, a first partition plate 16 is attached to the front side of the motor housing 4, and a second partition plate 17 is integrally formed on the rear side.

Among these, the first partition plate 16 is detachably attached to the inside of the motor housing 4 with bolts 22 with the front opening of the motor housing 4 closed, and when attached, the first partition plate 16 is attached to the inner peripheral surface of the motor housing 4. An O-ring 24 for sealing is interposed between 21 and the end surface 23, and a sealant 51 is provided on the outside of the first partition plate 16 to maintain watertightness.

Furthermore, a battery presser half 1 is attached to the first partition plate 16 in a state corresponding to the battery presser half 14 installed in the battery housing 3.
5 are integrally formed. This battery presser half 15 is formed as a substantially U-shaped recess with an open front side and a closed rear side, and the rear end side of the battery 13 is press-fitted into this recess so that it can be elastically held. It's summery.

In addition, the inner surface (rear surface side) 25 of the first partition plate 16
A motor holding frame 26 is integrally formed on the side. The motor holding frame 26 is formed as a substantially U-shaped recess with an open rear side.

On the other hand, the front opening end 43 of the motor housing 4 is provided with an uneven portion 44 corresponding to the uneven portion 42 formed on the opening end 41 of the battery housing 3. It is possible to fit into the concave and convex portions 42 of.
On the contrary, on the outside of the front open end 43 of the motor housing 4, there is a lock hook 47 formed at the open end on the battery housing 3 side.
Locking buckles 46 are scattered in the circumferential direction and are approximately 90
They are formed at each location, that is, at four locations.

When the motor housing 4 and the battery housing 3 are connected to each other on the front open end 43 side, the front side of the battery 13 is press-fitted into the battery presser half 14, and the open end of the battery housing 3 is attached. 41 into which the front open end 43 of the motor housing 4 is inserted.
At the same time, the rear side of the battery 13 is press-fitted into the battery presser half 15. Then, in conjunction with this series of operations, the uneven portion 42 on the battery housing 3 side and the uneven portion 44 on the motor housing 4 side are also fitted into each other. Next, when the locking buckle 46 is engaged and locked with each locking hook 47 on the battery housing 3 side, the battery housing 3 and the motor housing 4 are removably connected. 3 and 1st
A watertight battery chamber A is defined by the partition wall 16. Therefore, when the battery housing 3 and the motor housing 4 are connected, the battery 13 is attached to the battery presser half 15.
It is elastically clamped between the battery half body 16 and the battery half body 16, and is securely held within the battery chamber A.

On the other hand, a motor receiver 27 is attached via a gear case 28 to the second partition wall 17 formed on the rear end side of the motor housing 4 . The motor receiver 27 is used to hold the DC motor 18 in the motor housing 4 together with the motor holding frame 26 of the first partition wall 16. Simultaneously with the work of attaching the plate 16, the other end is fitted and attached to the motor holding frame 26. In addition, the gear case 28 and the second partition wall 17
A sealing O-ring 29 is interposed at the joint between the second partition wall 17 and the gear case 28 to maintain watertightness between the second partition wall 17 and the gear case 28 to form a watertight motor chamber B in the motor housing 4. There is.

In addition, a clutch housing 5 is detachably attached to the rear side of the motor housing 4 at a position behind the second partition wall 17, thereby defining a clutch chamber C at the rear side of the motor housing 4. It is becoming a state.

Furthermore, inside the gear case 28, a motor 1 is provided.
A planetary gear reducer 20 connected to the drive shaft 19 of 8
is installed. In addition, the other side of the gear case 28,
That is, a clutch shaft protection cover 30 protrudes in a cylindrical shape from the clutch chamber C side. A clutch shaft 31 is rotatably held in the clutch shaft protection cover 30 by a bearing 32. One end of the clutch shaft 31 is connected to the planetary gear reducer 20, and the other end is connected to the clutch 33. It is connected to the propeller shaft 34 via. In addition, the upper side of the clutch shaft protection cover 30, that is, the clutch 33
A clutch shaft seal 35 is attached to the side.

On the other hand, a propeller cover 36 and a propeller screen 37 are provided on the rear peripheral surface of the motor housing 4.
is installed. This propeller cover 36
is formed into a substantially cylindrical shape, and is detachably fixed to the rear part of the motor housing 4 with bolts (not shown).

In addition, the second partition plate 17 and the clutch housing 5
A propeller shaft 34 is rotatably attached to a clutch chamber C defined by a bearing 32 with a bearing 32 interposed therebetween. Note that this propeller shaft 34
The tip has a substantially cylindrical shape and is formed so as to be able to fit into the tail end of the clutch shaft 31 inside the clutch shaft protection cover 30.

Further, a propeller variable pitch dial 38 is provided on the rear end side of the clutch housing 5, and a plurality of propellers 39 are rotatably attached to the propeller variable pitch dial 38. In addition, a propeller shaft seal 40 is attached to the end portion of the clutch housing 5 of the propeller shaft 34 to prevent seawater from entering as the propeller 39 rotates.

When assembling the underwater scooter 1 configured as described above, first, the battery housing 3 and the motor housing 4 are attached removably and watertightly as described above, and the battery 13 is inserted into the battery chamber A. Arrange. Then,
The clutch housing 5 is fitted into the motor housing 4. At this time as well, the above fitting part is O.
It is sealed by a ring 48 and securely locked by a clamp lock lever (not shown). In this case, the joint between the clutch housing 5 and the motor housing 4 adopts a bayonet system, and the crank lock lever 49
It can be easily removed by raising the clamp ring 50 and turning it counterclockwise. In addition, the propeller shaft seal 40 in this embodiment is
It is made of a double structure and is in a state where it is possible to suppress the amount of seawater that enters into the clutch chamber C due to the rotation of the propeller shaft 34 or the water pressure associated with diving.

Therefore, according to the underwater scooter according to this embodiment, the housing 2 of the underwater scooter 1 has three parts.
formed into segments, each extending from the front to the rear,
It can be divided into a battery housing 3, a motor housing 4, and a clutch housing 5.

Furthermore, when the underwater scooter 1 is assembled into a usable state as shown in FIGS. 1 and 2, the first partition plate 16 is disposed between the battery housing 3 and the motor housing 4, and A second partition plate 17 is disposed between the motor housing 4 and the clutch housing 5, and the first and second partition plates 16 and 17 each partition a battery chamber A, a motor chamber B, and The clutch chambers C are formed individually.
Moreover, each of the battery chamber A, motor chamber B, and clutch chamber C is formed to be detachable.

That is, since the housings 3, 4, and 5 forming the respective chambers A, B, and C are made into blocks, each block can be disassembled and handled as necessary, for example, during transportation.

Furthermore, when inspecting the inside of the housing 2, only the necessary sections between the housings 3, 4, and 5 can be disassembled and inspected, making the work easier and reducing time.

In addition, a battery presser half 14 is provided on the battery housing 2 and a battery presser half 15 is provided on the first partition plate 16 so that the battery 13 is held by both battery presser halves 14 and 15, and the battery 13 is held by the battery presser halves 14 and 15. One end of the motor is attached and a motor holding frame 26 is provided on the first partition plate 16, and when the battery housing 3 and motor housing 4 are connected, the battery presser half 1
The battery 13 and motor 18 can be held between each housing 3 and the motor 18 can be attached to the motor holding frame 26 when the motor housing 4 and the clutch housing 5 are connected. , 4, and 5 can be attached and detached at the same time as they are attached and detached from each other, improving work efficiency.

Furthermore, when the battery chamber A, motor chamber B, and clutch chamber C, which are divided as described above, are assembled integrally, a sealing means and a joining means are provided at the joints of each housing, and these sealing means and joining means work together to seal the joints, ensuring each chamber is watertight.

In addition, in the conventional structure, the seal on the propeller shaft of an underwater scooter was sealed in one place, so it was not uncommon for a small amount of seawater to infiltrate through the seal point when the propeller shaft rotated or due to water pressure. . In addition, in conventional underwater scooters, the battery, motor, clutch, etc. are arranged in a straight line in a single housing, so seawater that has entered through the sealing member of the propeller shaft, for example, can spread throughout the housing, and However, in the structure of this embodiment, by dividing the housing 2 of the underwater scooter 1 into three, the The structure prevents seawater from entering the important motor room B in the center, which solves the problems of the prior art.

That is, a propeller shaft seal 40 is attached in a double structure to the propeller shaft 34 disposed in the clutch chamber C, and a clutch shaft seal 35 is further disposed on the clutch shaft 31 connected to the propeller shaft 34. Even if seawater were to infiltrate through the sealing member of the clutch shaft 34, the clutch shaft seal 35, second bulkhead plate 17, etc. ensure complete watertightness, so that no seawater could enter the clutch chamber C. Seawater will not spread to other rooms.
Similarly, even if seawater enters the battery compartment A due to some malfunction, the sealant 51 and the O-ring 24 work together to prevent the seawater from entering the motor compartment B. . Therefore, each room, that is, battery room A and clutch room C, always prevents seawater from entering motor room B, which is located in the center, and this prevention means has a double structure, so there is no possibility of any malfunction. Therefore, even if seawater enters the housing on either side, it can be prevented from spreading outside the housing.

Furthermore, the underwater scooter 1 can be submerged to a depth of approximately 50 meters, and as it dives, water pressure increases, and the same water pressure also applies to the propeller shaft seal, making it easy for seawater to infiltrate, making it extremely difficult to completely prevent it. . However, according to the underwater scooter 1 of this embodiment, the seawater that has entered the clutch chamber C accumulates and cannot enter the motor chamber B unless it passes through the next clutch shaft seal 35. In addition, since water pressure is not directly applied to the clutch chamber C, the clutch shaft seal 35 is sealed in a double seal structure with good sealing effect. Furthermore, even if water intrudes into the clutch chamber C, the clutch housing 5 can be easily removed with one touch by turning the clamp ring 50 counterclockwise, and the infiltrated seawater can be easily removed. It is something.

Therefore, in the underwater scooter 1 of this embodiment, the housing 2 is divided into three parts: a battery housing 3, a motor housing 4, and a clutch housing 5, thereby preventing seawater from entering due to some malfunction during use. In addition to preventing seawater from spreading throughout the housing 2, it is also possible to completely prevent seawater that has entered for some reason from entering the motor housing 4 located in the center. .

That is, since the housing 2 has the motor housing 4 located in the center and is sandwiched between the battery housing 3 and the clutch housing 5 on the front and rear sides, in the unlikely event that either the battery housing 3 or the clutch housing 5 or Even if seawater intrudes into both, the battery housing 3 and clutch housing 5 are individually watertight, so the infiltrated seawater is prevented from infiltrating into other rooms. Moreover, the above-mentioned individual independent housings are the first and second partition plates 1.
6, 17, the sealing means, and the joining means of each housing cooperate to maintain watertightness within each room.

Furthermore, when the underwater scooter 1 itself is to be disassembled for maintenance or the battery 13 is to be charged over the course of use, the housing 2 itself can be disassembled into three parts, making maintenance easier. Therefore, it is possible to easily discover malfunctions such as malfunctions, prevent malfunctions that may occur during diving, and ensure safety.

[Effects of the Invention] As explained above, according to the underwater scooter according to the present invention, the battery housing 3 and the motor housing 4, which have the first partition plate 16 interposed therebetween, can be attached and detached in a watertight manner. A battery chamber A is formed, and a watertight detachable clutch chamber C is formed between the motor housing 4 and the clutch housing 5 with a second partition plate 17 interposed therebetween, and a first partition wall The plate 16 and the second partition plate 17 form a watertight, removable motor chamber B in the motor housing 4, and each housing 3, which forms these compartments A, B, and C,
Since the parts 4 and 5 are made into blocks, they can be disassembled into blocks and handled as needed, for example, when transporting, so handling during transport and movement becomes easy.

Furthermore, when inspecting the inside of the housing 2, only the necessary sections between the housings 3, 4, and 5 can be disassembled and inspected, making the work easier and reducing time.

Furthermore, since the battery 13 and motor 18 can be attached and detached at the same time as the battery housing 3, motor housing 4, and clutch housing 5 are attached and detached from each other, work efficiency can be improved.

[Brief explanation of drawings]

FIG. 1 is an overall perspective view including a partial cross section of an underwater scooter according to an embodiment of the present invention, FIG. 2 is a schematic sectional view taken along the line XX in FIG. 1, and FIG. FIG. 4 is a sectional view showing the underwater scooter shown in FIG. 1 divided into three parts, and FIG. 4 is a partially enlarged view of the underwater scooter shown in FIGS. 2...Housing, 3...Battery housing, 4...Motor housing, 5...Clutch housing, 13...Battery, 14...First
battery presser half, 15... second battery presser half, 16... first partition plate, 17... second
Partition plate, 18... Drive motor, 26... Motor holding frame, 33... Clutch, 38... Propeller variable pitch dial, A... Battery chamber, B...
Motor room, C...clutch room.

Claims (1)

[Claims] 1. An underwater scooter having a battery 13, a drive motor 18, a clutch 33, etc. in a housing 2, wherein the housing 2 is closed at one end 6 and at the other end 4.
A battery housing 3 having an open end 1, a motor housing 4 having both ends open and one end 43 of which is detachably connected to the open end 41 of the battery housing 3, and a rear end thereof. between the battery housing 2 and the motor housing 4; a clutch housing 5 having a propeller variable pitch dial 38 rotatably attached to the side thereof, and one end of which is detachably connected to the other end of the motor housing 4; The clutch includes a first partition plate 16 that is detachably provided with watertightness between the motor housing 4 and the clutch housing 5, and a second partition plate 17 that is provided with watertightness between the motor housing 4 and the clutch housing 5. The inside of the housing 2 is divided into the watertight battery chamber A, motor chamber B, and clutch chamber C.
A first battery holding half 14 provided on the battery housing 2, and a first battery holding half 14 provided on the first partition plate 16 corresponding to the first battery holding half 14. The battery 13 together with the first battery presser half 14
a second battery presser half 15 for holding the motor 18; and a motor holding frame 26 that is connected to the battery housing 3 and the motor housing 4.
An underwater scooter characterized in that the motor 18 is attached to the motor holding frame 26 when the motor housing 4 and the clutch housing 5 are connected.