JP2007230414A - Buoy for sea development - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a buoy for the sea development of light weight having the high reliability of a sea development function. <P>SOLUTION: The buoy 10 for sea development is provided with electronic equipment such as marine observation equipment and communication equipment; a cylindrical outer cylinder 5 for storing the electronic equipment at an inner bottom side and having an outer cylinder opening at an opposite bottom side; a lid 1 attached to the outer cylinder 5 so as to close the outer cylinder opening and removed from the outer cylinder so as to release the outer cylinder opening when the buoy is thrown to the sea; a floating body 3 stored at the outer cylinder opening side of an outer cylinder hollow part and pushed out of the outer cylinder when the outer cylinder opening is released; a sleeve 2 made of metal divided to a plurality of parts, installed along the inner peripheral surface of the outer cylinder so as to surround the floating body and pushed out of the outer cylinder together with the floating body when the outer cylinder opening is released; and a spring 4 for pressing the sleeve to a lid side. The sleeve 2 is formed of a plate material folded and bent to a wave shape so as to have a projection on the outer peripheral surface of the sleeve, and the projection is extended in an outer cylinder axial direction and is installed so as to be abutted on the inner peripheral surface of the cylinder. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an underwater deployment buoy, and is particularly suitable for an underwater deployment buoy including an electronic device such as an ocean observation device or a communication device.

  A conventional underwater buoy will be described with reference to FIG. FIG. 4 is a diagram showing a conventional underwater buoy immediately after being introduced into the sea. FIG. 4A is a perspective view of the buoyancy body. FIG. 4B is a top view thereof, and the buoyancy body and the lid are omitted. In addition, the thing of the same code | symbol in FIGS. 1-4 shows the same thing or an equivalent.

  The underwater deployment buoy 10 includes an outer cylinder 5, a lid 1 that opens from the outer cylinder 5 to open the opening of the outer cylinder 5 when the buoy is thrown into the sea, and an opening of the outer cylinder 5. A buoyancy body and sleeve 2 pushed out from the outer cylinder 5 and a spring 4 for pressing the sleeve 2 toward the lid are provided.

  The sleeve 2 is divided into two, and is installed along the outer peripheral surface 5c of the outer cylinder so as to surround the buoyancy body. The outer peripheral surface 2 a of the sleeve 2 is formed by a simple arc surface substantially the same as the inner peripheral arc surface of the outer cylinder 5.

  An underwater exploration buoy that falls on the sea surface disclosed in Japanese Patent Application Laid-Open No. 2005-8044 (Patent Document 1) is related to such an underwater buoy.

Japanese Patent Laid-Open No. 2005-8044

  In the conventional underwater buoy 10 shown in FIG. 4 described above, since the contact area between the outer peripheral surface of the sleeve 2 and the inner peripheral surface of the outer cylinder 5 is large, a large contact occurs when the sleeve 2 is pushed out of the outer cylinder 5. Resistance occurred and obstructed the pushing of the sleeve 2 by the spring 4. In particular, when the outer peripheral surface of the sleeve 2 and the inner peripheral surface of the outer cylinder 5 are installed in close contact with each other, the contact surface is in a vacuum state when the sleeve 2 is pushed out of the outer cylinder 5. The sleeve 2 may not be detached from the outer cylinder 5.

  Further, since the sleeve 2 is pressed by the spring 4, the sleeve 2 needs to be rigid enough to withstand the pressing. However, in order to increase the rigidity of the conventional sleeve 2 having an arcuate surface, it is necessary to increase the plate thickness, and the weight is heavy. Also from this point, the extrusion of the sleeve 2 by the spring 4 is obstructed.

  An object of the present invention is to provide an underwater deployment buoy that is lightweight and has high reliability in the underwater deployment function.

  In order to achieve the above-described object, the present invention provides an electronic device such as an ocean observation device and a communication device, and a cylinder that houses the electronic device on the bottom side of the outer cylinder hollow portion and has an outer cylinder opening on the opposite bottom side A cylindrical outer cylinder, a lid that is attached to the outer cylinder so as to close the outer cylinder opening, and that is removed from the outer cylinder so as to open the outer cylinder opening when a buoy is thrown into the sea; A buoyancy body that is housed on the outer cylinder opening side of the cylinder hollow portion and is pushed out from the outer cylinder when the outer cylinder opening is opened, and an outer cylinder inner circumferential surface that is divided into a plurality and surrounds the buoyancy body And a metal sleeve that is pushed out from the outer cylinder together with the buoyancy body when the outer cylinder opening is opened, and a spring that presses the sleeve toward the lid, and a protrusion on the outer peripheral surface of the sleeve. The sleeve is made of a plate material folded in a wave shape so as to have Form is that the projecting of the sleeve is extended to the outer cylinder axis and placing the sleeve so as to abut on the outer cylinder circumference.

  According to the present invention, it is possible to provide an underwater deployment buoy that is lightweight and has high reliability in the underwater deployment function.

Hereinafter, a plurality of embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
The underwater deployment buoy according to the first embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a diagram for explaining the underwater expansion function of the underwater expansion buoy 10 according to the first embodiment of the present invention. FIG. 2 is a view showing a state immediately after the underwater deployment buoy 10 of FIG. 2A is a perspective view of the underwater deployment buoy 10, and the buoyancy body 3 is omitted. FIG. 2B is a perspective top view of the underwater deployment buoy 10 with the buoyant body 3 and the lid 1 omitted.

  The underwater deployment buoy 10 includes an electronic device (not shown), a cylindrical outer cylinder 5, a lid 1 detachably attached to the outer cylinder 5, and a buoyancy body 3 accommodated in the opening-side hollow portion. The metal sleeve 2 is divided into a plurality of pieces and accommodated in the opening-side hollow portion, and the spring 4 presses the sleeve 2 toward the lid.

  The electronic device is composed of an ocean observation device or a communication device used in the sea, and is installed on the bottom side inside the outer cylinder 5.

  The outer cylinder 5 has an end surface on the side opposite to the bottom as an outer cylinder opening 5a. The outer cylinder 5 has an opening-side hollow part 5b having the outer cylinder opening 5a and a bottom-side hollow part for housing an electronic device.

  The lid 1 is mounted so as to close the outer cylinder opening 5b, and is configured to be detached from the outer cylinder 5 and open the outer cylinder opening 5b when the buoy is thrown into the sea. When the buoy is thrown into the sea, the lid 1 gets wet from the seawater, so that the lid 1 is detached from the outer cylinder 5.

  The buoyancy body 3 is accommodated in the opening-side hollow portion 5b so as to be pushed out from the outer cylinder 5 when the outer cylinder opening 5b is opened. The buoyancy body 3 is formed of an elastic bag body such as rubber or resin, and is disposed so as to face the lid 1 in a contracted state. One side of the rope 7 is attached to the opposite side of the buoyancy body 3. The other side of the rope 7 is attached to the bottom of the opening side hollow portion 5b.

  The sleeve 2 is formed by being divided into a plurality of parts, is installed along the outer peripheral surface 5b of the outer cylinder so as to surround the buoyancy body 3, and the outer cylinder 5 together with the buoyancy body 3 when the outer cylinder opening 5b is opened. It is stored so that it can be pushed out from. The sleeve 2 is formed of a plate material that is bent into a wave shape so as to have a protrusion 2b on the sleeve outer peripheral surface 2a, and the protrusion 2b of the sleeve 2 extends in the outer cylinder axial direction so as to contact the inner peripheral surface 5a of the outer cylinder. It is installed in the opening side hollow portion 5b. By forming the sleeve 2 into a corrugated shape, a sleeve that is lightweight and has high rigidity against buckling can be realized. From this point, the underwater deployment function can be improved.

  The spring 4 is formed of a coil spring having a slightly smaller diameter than the inner peripheral surface 5c of the outer cylinder constituting the opening-side hollow portion 5b, and is installed on the bottom side in the opening-side hollow portion 5b so as to press the sleeve 2 toward the lid. ing. The spring 4 is compressed in a state where the lid 1 is attached to the outer cylinder 5 to obtain a pressing force against the sleeve 2.

  When the underwater deployment buoy 10 having such a structure is introduced from the sea, as shown on the left side of FIG. The attachment of the lid 1 to the outer cylinder 5 is released.

  By this release, as shown in the center of FIG. 1 and FIG. 2, the sleeve 2 is gradually pushed out from the opening-side hollow portion 5 b by the pressing force of the spring 4 in a state of surrounding the sleeve 2 (a state in which the sleeve 2 is protected). It is. At this time, a protrusion 2b is formed on the outer peripheral surface 2a of the sleeve 2, and since the contact area with the inner peripheral surface 5c of the outer cylinder is small and the frictional resistance is reduced as compared with the conventional example, the sleeve 2 Easily extruded. Further, the outer peripheral surface 2a of the sleeve 2 and the inner peripheral surface 5c of the outer cylinder 5 are not in close contact with each other, and a vacuum state is caused between the outer peripheral surface 2a of the sleeve 2 and the inner peripheral surface 5c of the outer cylinder 5. Nothing will happen. This significantly improves the reliability of the underwater deployment function.

  Then, when the sleeve 2 is completely pushed out from the inside of the opening-side hollow portion 5b, as shown on the right side of FIG. 1, the sleeve 2 moves away from side to side and the lid 1 falls into the sea. Along with this, gas is generated inside the buoyancy body 3, and the buoyancy body 3 expands and rises to the sea surface. In this state, the outer cylinder 5 is suspended from the buoyancy body 3 via the rope 7 and is positioned at a predetermined depth in the sea according to the length of the rope 7. In this state, the electronic equipment is functioned for ocean observation and communication.

The underwater deployment buoy 10 of the present embodiment floats a buoyant body 3 containing gas on the sea surface and hangs it from there with a rope 7 for the purpose of operating the sensor part of the electronic device at a predetermined depth in the sea. It can be applied to a relatively inexpensive method to be used.
(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 3 is a view showing a state immediately after the underwater deployment buoy 10 according to the second embodiment of the present invention is put into the sea. 3A is a perspective view of the underwater deployment buoy 10, and the buoyancy body 3 is omitted. FIG. 3B is a perspective top view of the underwater deployment buoy 10 with the buoyant body 3 and the lid 1 omitted.

  The second embodiment is different from the first embodiment in the points described below, and the other points are basically the same as those in the first embodiment, and thus redundant description is omitted.

  In the second embodiment, the corrugated shape of the sleeve 2 is changed to increase the area of the arc surface and reduce the number of the projecting portions 2b. By doing so, the rigidity of the sleeve 2 is lower than in the first embodiment, but the frictional force between the sleeve 2 and the outer cylinder 5 is reduced, and the reliability of the underwater deployment function can be further improved.

It is a figure explaining the underwater expansion | deployment of the buoy for underwater expansion | deployment of 1st Embodiment of this invention. It is a figure which shows the state immediately after the sea injection of the underwater deployment buoy of FIG. It is a figure which shows the state immediately after submerged injection of the underwater deployment buoy of 2nd Embodiment of this invention. It is a figure which shows the state immediately after submerged injection of the conventional underwater deployment buoy.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Lid, 2 ... Sleeve, 2a ... Sleeve outer peripheral surface, 2b ... Sleeve protruding shape, 3 ... Buoyant body, 4 ... Spring, 5 ... Outer cylinder, 5a ... Outer cylinder opening, 5b ... Opening side hollow part, 5c ... Outer In-cylinder inner surface, 7 ... rope, 10 ... underwater buoy.

Claims (1)

Electronic equipment such as marine observation equipment and communication equipment,
A cylindrical outer cylinder that houses the electronic device on the bottom side of the outer cylinder hollow part and has an outer cylinder opening on the opposite bottom side;
A lid that is attached to the outer cylinder so as to close the outer cylinder opening, and is removed from the outer cylinder so as to open the outer cylinder opening when a buoy is thrown into the sea;
A buoyancy body that is housed on the outer cylinder opening side of the outer cylinder hollow part and pushed out of the outer cylinder when the outer cylinder opening is opened;
A metal sleeve which is divided into a plurality of parts and is installed along the inner peripheral surface of the outer cylinder so as to surround the buoyancy body, and is pushed out from the outer cylinder together with the buoyancy body when the outer cylinder opening is opened;
A spring for pressing the sleeve toward the lid,
The sleeve is formed of a plate material bent in a wave shape so as to have a ridge on the outer peripheral surface of the sleeve,
The sleeve is installed such that the protruding shape of the sleeve extends in the axial direction of the outer cylinder and contacts the inner peripheral surface of the outer cylinder;
Underwater deployment buoy characterized by

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