JP4379672B2 - Floating lighthouse - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a light mark, and more particularly to a floating light mark suitable for installation and use in water.
[0002]
[Prior art]
There are two types of lightposts that display the route or construction area on a ship that sails on the sea. In the pile-type light mark, a pile is driven into the seabed, a pipe provided on the pile is lifted to the sea part, and the light mark is installed there. In addition, the floating light indicator uses a connecting means such as a universal joint or a short chain for connecting the anchor part and the floating part. However, the stake-type light mark has an advantage that the light output optical axis is horizontal, but there is a problem that the structure becomes large and the marking work is not easy. In addition, in the floating type light guide, the marking work is easy, but because of the use of a universal joint or a short chain, the above-mentioned is caused by a collision of a ship, corrosion due to long-term use in water, force due to water flow, etc. The connecting means may break. As a result, there has been a problem that the floating body part moves away from the anchor part and floats on the sea, or the platform on which the lamp is mounted falls and is submerged. In order to solve such problems, conventionally, as shown in FIG. 5, two connecting means are provided, and even if one of them breaks, the other complements the other, and the floating part floats on the sea or falls down There is a floating lightpost as shown in FIG. 5 that solves the problem of being submerged.
[0003]
The floating lamppost shown in FIG. 5 is used by being installed underwater (for example, on the sea), and the bottom 1a installed on the bottom 8 is horizontal, for example, an anchor 1 made of metal such as concrete or iron, and the anchor 1 is provided with a water depth adjusting floating body portion 3 (3a, 3b) for adjusting the water depth, one end portion P1 of which is connected to the anchor portion 1 by a chain 10 so as to float.
[0004]
The floating body portion 3 is composed of a plurality of floating body portions. In FIG. 5, the floating body portions 3a and 3b are fixed with bolts at hinges 3aa and 3bb provided at both ends, respectively. Forming. Usually, a plurality of the floating body portions 3 are used for adjusting the water depth, and the floating body portions 3 are vertically connected by the number most suitable for the water depth. A platform portion 5 is provided on an upper portion of the end portion P2 different from the end fixed to the anchor portion 1 of the floating body portion 3 so as to be a water surface portion of the water surface 7. The platform portion 5 has a well-known lamp 6 and storage 9 mounted on a bottom portion 5a, and a handrail 5b is erected around it. The other end P2 is fixed to the platform 5 with bolts or the like.
[0005]
The floating body 3 has an upper surface Q of a cylindrical intermediate floating body 4 having a diameter larger than that of the floating body 3 below the platform 5 at the end P2 and below the platform 5. It is provided as needed. The intermediate floating body 4 increases the buoyancy, reduces the gravity applied to the floating body 3 when the weight of the lamp 6 and the storage 9 mounted on the platform 5 is large, and reduces the thickness of the cylinder of the floating body 3. Act as you can. When the chain 10 connecting the anchor part 1 and the floating body part 3a is broken, the chains 2a and 2b are in the middle of the floating body part 3a so that the floating body part 3 does not float on the sea or falls down and is submerged. The anchor rings 11a and 11b provided on the anchor portion 1 and the anchor rings 12a and 12b provided on the anchor portion 1 are connected using a well-known shackle (not shown). The chains 2a and 2b are long enough to prevent the anchor part 1 and the floating body part 3 from being pulled by the chains 2a and 2b when the anchor part 1 and the floating body part 3 are placed on the ground. When installing the light mark, the water bottom 8 of a predetermined designated point is dredged horizontally, and then the light mark is placed so that the bottom 1a of the anchor portion 1 faces the drooped position.
[0006]
[Problems to be solved by the invention]
However, there are the following problems with the floating lightpost. That is, in order to cope with a change in water depth, a plurality of water depth adjusting floating body portions (water depth adjusting floating body portions) having the same length are connected in cascade. Then, after connecting the floating body portions to a predetermined depth, the chains 10, 2 a and 2 b are connected to the anchor portion 1 as described above. The chains 2a and 2b are connected to the anchoring rings 11a and 11b joined in the middle of the floating body 3a by welding. And since the said floating body part is for water depth adjustment, the length is comparatively long (for example, 10 m) in the range which does not become an obstacle of land transport.
[0007]
On the other hand, the mooring rings 11a and 11b provided in the middle of the floating body 3a are joined so as to stand on the outer periphery of the floating body 3 by welding. The mooring rings 11a and 11b are welded to the outer periphery of the floating body 3 like ears, and the joining force thereof is only a joining force by welding, so that it is weak. For this reason, a force may be applied to the floating body 3 due to a collision of a ship or a tidal force, resulting in damage such as a crack or a break.
[0008]
Further, as described above, since the water depth adjustment floating body is long, when the mooring rings 11a and 11b are welded, the mooring rings 11a and 11b are arranged at one end, for example, a position close to P1, and one end thereof is arranged. Even if welding is performed from the (P1 side), the opposite side (from the P3 side) has a long distance from the P3 side of the floating body 3 and is difficult to weld. However, the diameter of the floating body portion 3 is usually about 1 m, and it is not easy to perform the welding from the P3 side when an operator enters it.
[0009]
In addition, when the floating light indicator is moved to another place and used, the number of the water depth adjusting floating body portions is increased or decreased, and further connected to the mooring rings 11a and 11b provided in the water depth adjusting floating body portion. The shackle is melted and the chains 2a and 2b are cut off, the number of the water depth adjusting floats is increased or decreased, and the shackles are attached to the mooring rings 11a and 11b provided in the newly provided water depth adjusting floats. 2a and 2b are connected. As a result, extra work such as fusing the shackle is required, and the economic effect is poor. Furthermore, as a result of the long water depth adjustment floating body, there is a problem that the newly formed water depth adjustment floating body has a small degree of freedom in adjusting the water depth.
[0010]
An object of the present invention is to solve the problem and provide a floating light indicator having a connected floating body portion that is easy to set and can cope with a change in water depth.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a floating lightpost according to claim 1, wherein a floating body is provided with buoyancy in an anchor portion installed on the bottom of the water and a platform portion for holding the lamp on the water surface. And a connecting means for connecting the floating body part to the anchor part, the connecting means comprising first connecting means and second connecting means for complementing the first connecting part, The floating body portion includes a water depth adjusting floating body portion for adjusting a water depth, and a connecting floating body portion provided at a lower portion of the water depth adjusting floating body portion and having a cylindrical shape for connecting the connecting means and the water depth adjusting floating body portion, The connecting floating body portion is provided with two auxiliary mooring portions each having an elongated plate shape for connecting the second connecting means, and each auxiliary mooring portion has a cylindrical surface of the connecting floating body portion. Are provided at equal intervals in the circumferential direction, and connected floating Arranged to intersect with each other at the center of the portion, further wherein while being welded to the connecting the floating body in the penetrating portion, characterized in that it is welded together at the center of the cross.
[0012]
According to a second aspect of the present invention, in the floating lamppost according to the first aspect, the connection floating body portion is formed integrally with the first connection means.
[0013]
According to a third aspect of the present invention, in the floating lamppost according to the first aspect, the connection floating body portion is formed separately from the first connection means.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a diagram for explaining an embodiment of a floating lamppost according to the present invention. Hereinafter, the present invention will be described with reference to FIG. In FIG. 1, the floating lamppost is used by being installed underwater (for example, on the sea), and the bottom 1 a installed on the bottom 8 is horizontal, for example, made of metal such as concrete or iron, for example, a rectangular anchor 1 One end of a cylindrical connecting floating body portion 3c is connected to the upper portion of the anchor portion 1 by the first connecting means (universal joint) 20 as described later. Similarly, the connected floating body portion 3c is connected to the water depth adjusting floating body portion 3a and the flanges 3cc and 3ca, and the water depth adjusting floating body portion 3a is connected to the water depth adjusting floating body portion 3b and the flanges 3ba and 3bb with bolts (not shown). . Each flange 3cc, 3ca, 3ba, 3bb is provided with a circular end plate (not shown), whereby each floating body is sealed. The shape of the anchor portion 1 may be a shape other than a quadrangle, for example, a bowl shape or a cylindrical shape.
[0016]
The flange 3bd formed in the water depth adjusting floating body 3b is fixed to the bottom 5a of the platform 5 with a bolt (not shown), and the platform 5 is provided to be a water surface portion of the water surface 7. The platform portion 5 has a well-known lamp 6 and storage 9 mounted on a bottom portion 5a, and a handrail 5b is erected around it.
[0017]
The universal joint 20 connects the connected floating body portion 3c and the anchor portion 1 so that the floating body portion 3 (the connected floating body portion 3c, the water depth adjusting floating body portions 3a and 3b) is held substantially perpendicular to the anchor portion 1 in water. Link. The upper part of the universal joint 20 has a circular flange 20a having the same diameter as that of the flange 3ac provided at one end of the cylindrical connecting floating body 3c. 20 and the connection floating body part 3c are connected. When the universal joint 20 that connects the anchor portion 1 and the connection floating body portion 3c is broken, the chain as the second connection means is used so that the floating body portion 3 does not float on the sea or falls down and is submerged. 2a and 2b are provided. The chains 2a and 2b connect the auxiliary anchoring portion 13a to which the anchor shackles 14a and 14b penetrating the connecting floating body portion 3c are attached and the anchoring rings 12a and 12b provided in the anchor portion 1.
[0018]
Similarly, two anchor shackles (not shown) at positions orthogonal to the auxiliary mooring portion 13b penetrating the connecting floating body portion 3c and the anchor shackles 14a and 14b provided in the anchor portion 1 are attached. The mooring ring (not shown) is connected by two chains (not shown) similar to the above. The chains 2a, 2b and two chains not shown are long enough to prevent the anchor part 1 and the floating body part 3 from being pulled by the chain when the anchor part 1 and the floating body part 3 are placed on the ground. That's it. The number of the water depth adjusting floats 3a and 3b may be other than the above, and the length and number are appropriately adjusted according to the water depth. Furthermore, the floating body part 3 has a cylindrical shape, and both ends thereof are sealed by, for example, end plates so that seawater or the like is not submerged. The reason is to prevent erosion due to water in addition to providing buoyancy, which is the original purpose of the floating body.
[0019]
Further, the floating body portion 3b below the platform portion 5 is provided with a cylindrical intermediate floating body portion 4 having a diameter larger than that of the floating body portion 3b below the water surface 7 as necessary. The intermediate floating body 4 increases the buoyancy, reduces the gravity applied to the floating body 3 when the weight of the lamp 6 and the storage 9 mounted on the platform 5 is large, and reduces the thickness of the cylinder of the floating body 3. Act as you can. In addition, when installing the floating-type light mark, the water bottom 8 at a predetermined designated point is dredged horizontally, and then the light mark is placed so that the bottom 1a of the anchor portion 1 faces the drooped position. In addition, although the said floating body lower part 2, the floating body part 3, and the intermediate | middle floating body part 4 are all demonstrated as a cylindrical shape, shapes other than this, for example, a polygon, an ellipse, etc., may be sufficient.
[0020]
Next, the connection floating body part 3c shown in FIG. 1 will be described in detail with reference to FIGS. 2A and 2B are views of the connection floating body portion 3c, in which FIG. 2A is a top view of the connection floating body portion, and FIG. 2B is a partial cross-sectional view in FIG. FIGS. 3 and 4 are diagrams of the auxiliary mooring unit, and FIGS. 3A, 3B, 4A, and 4B are a top view and a front view, respectively.
[0021]
As shown in FIG. 2, the connecting floating body 3c has flanges 3ac and 3cc formed with ribs 16a and 16b around the upper and lower ends of a cylindrical tube 22 made of metal. The flanges 3ac and 3cc are provided with circular end plates R1 and R2, and the connecting floating body 3c is thereby sealed. An end plate R2 at the upper end of the flange is provided with a socket 17 for airtightness inspection for confirming the airtightness of the connecting floating body portion 3c. The tube 22 is provided with a through hole (not shown) through which the auxiliary mooring portions 13a and 13b penetrate the tube 22, and the auxiliary mooring portions 13a and 13b are provided through the through hole.
[0022]
As a result of providing the auxiliary mooring portions 13a and 13b penetratingly, compared to the mooring rings 11a and 11b joined so as to stand upright on the outer periphery of the floating body portion 3 by conventional welding, The joining force is greatly increased, and there is no risk of damage such as cracks and breakage due to the collision of the ship and the force applied to the floating body 3 by tidal power. Further, the length of the cylinder 22 may be any length as long as the auxiliary mooring portions 13a and 13b and the flanges 3ac and 3cc provided above and below the cylinder 22 are formed, respectively. On the other hand, it is considerably short and can be realized, for example, at 1 m or less. Therefore, there is little influence on the water depth adjustment, and since the length of the tube 22 is short, it is possible to work from both ends, and workability when welding the auxiliary mooring portions 13a, 13b to the tube 22 is very high. Good.
[0023]
It said auxiliary anchoring portions 13a, 13b, as shown in FIGS. 3 and 4, has an elongated plate shape, an auxiliary anchoring portion 13a is bolt-hole 1 5 a for mounting the known shackle 14a, 14b at both ends thereof, 15b Is formed. The auxiliary mooring portion 13b has an elongated plate shape, and a bolt hole 21a for attaching a shackle (not shown) is formed at one end thereof, and the other end is joined to the auxiliary mooring portion 13a. ing.
[0024]
The auxiliary mooring portion 13a and the auxiliary mooring portion 13b cross each other at a substantially central portion in the tube 22, as shown in FIG. Therefore, shackles 14a and 14b are attached to both ends of the auxiliary mooring portion 13a, respectively, and are connected to mooring rings 12a and 12b equally provided on the square anchor portion 1 by chains 2a and 2b. Similarly, two shackles (not shown) are attached to both ends of the auxiliary mooring portion 13b, respectively, and are connected to mooring rings (not shown) equally provided on the square anchor portion 1 by two chains. Has been. The number of the mooring rings may be other than this, and may vary depending on the shape of the anchor portion 1 and the like. For example, when the anchor portion 1 is circular, it may be three, four, or more.
[0025]
Auxiliary anchoring portion 13b, after an auxiliary anchoring portion 13a is passed through the tube 22, is passed through the tube 22, after contact with end 13ba to the auxiliary anchoring portion 13 a, and is welded both auxiliary anchoring portion 13a and 13b Is integrated. Further, the auxiliary mooring portions 13a and 13b are also welded to the inside of the tube 22 in the same manner after the central portion is welded, so that the tube 22 and the auxiliary mooring portions 13a and 13b are integrated. Reinforcing portions 18a, 18b, and 19a are formed at both ends of the auxiliary mooring portions 13a and 13b in order to increase the bonding strength with the tube 22. The reinforcing portions 18a, 18b, and 19a penetrate the auxiliary mooring portions 13a and 13b through the tube 22, and are welded together with the tube 22 and the auxiliary mooring portions 13a and 13b after the central portion and the inscribed portion are welded. The order of the welding may be other than this. For example, after passing through the auxiliary mooring portions 13a and 13b through the tube 22, the tube 22 is sequentially formed from the outside of the tube 22 (reinforcing portions 18a, 18b, and 19a). You may weld like the inscribed part of this, and the center part of an auxiliary mooring part.
[0026]
The flange 3cc and the flange 3ca shown in FIG. 1 formed on the water depth adjusting floating body 3a are connected by a bolt (not shown). The flange 3ac may be directly integrated with the universal joint 20. That is, one of the flange 20a provided in the universal joint 20 and the flange 3ac provided in the connection floating body 3c is removed to seal the connection floating body 3c, and the connection floating body in which the universal joint 20 and the connection floating body 3c are integrated. A universal joint with part. In such a case, if the flange 3cc on the upper part of the connecting floating body of the universal joint with the connecting floating body is separated from the flange 3ca formed on the water depth adjusting floating body 3a, the shackle needs to be blown for each transfer. The economic effect is great along with the efficiency of the relocation work.
[0027]
As shown in FIG. 1, when the universal joint 20 and the connecting floating body 3c are provided with a flange having the same shape, and the flange provided on the universal joint 20 and the flange 3ac are connected with bolts, When the joint 20 is broken, it is only necessary to replace the universal joint 20, and it is economical because it is not necessary to replace the connecting floating body 3c.
[0028]
In the anchor portion 1, the moment necessary for rotating the anchor portion 1 between the floating body portion 3 and the platform portion 5 above the universal joint 20 acts on the overturning moment due to the tidal force acting on the anchor portion 1 and on the light mark. The width 1 of the anchor portion 1 and the mass (ie, height) of the anchor portion 1 are determined so as to overcome the sum of the overturning moments caused by waves, winds, and tidal currents.
[0029]
The intermediate floating body 4 is made of the same material (for example, iron) as the floating body 3 and is provided in the water depth adjusting floating body 3 b below the platform 5. The intermediate floating body 4 has a hollow cylindrical shape having a larger diameter than the water depth adjusting floating body 3b, and is fixed to the water depth adjusting floating body 3b by welding or the like so that the upper surface Q is below the water surface 7. . The intermediate floating body 4 increases the buoyancy, reduces the gravity applied to the floating body 3 when the weight of the lamp 6 and the storage 9 mounted on the platform 5 is large, and reduces the thickness of the cylinder of the floating body 3. Act as you can.
[0030]
【The invention's effect】
The invention according to claim 1 provides a function of adjusting the water depth of the floating light indicator and a function of connecting the anchor part and the floating body part by providing a connection floating body part between the anchor part and the water depth adjusting floating body part. It can be separated, and the function and performance of the floating lightpost can be greatly improved, and the degree of freedom during relocation can be increased. Further, the connection floating body portion has an auxiliary mooring portion for connecting the second connection means around the connection floating body portion, and the auxiliary mooring portion penetrates the connection floating body portion, so that the mooring strength of the floating type light mark is increased. As a result, even if the first connecting means breaks and breaks, the floating lantern will not be washed away or fall down by the auxiliary mooring portion.
[0031]
In the invention according to claim 2, the connection floating body portion is formed integrally with the first connection means, so that the connection floating body portion and the water depth adjustment floating body portion can be separated at the time of transfer. For example, it is not necessary to melt the shackle each time the first and second connecting means are moved, and the economic effect is increased along with the efficiency of the moving work.
[0032]
According to a third aspect of the present invention, since the connecting floating body portion is formed separately from the first connecting means, it is necessary to replace the connecting floating body portion even when the first connecting means is broken. There is no economic effect.
[Brief description of the drawings]
FIG. 1 is a diagram for explaining an embodiment of a floating lantern in the present invention.
2A and 2B are views of a connected floating body, in which FIG. 2A is a top view of the connected floating body, and FIG. 2B is a partial cross-sectional view in FIGS. 2A and 2B.
FIGS. 3A and 3B are a top view and a front view, respectively, of an auxiliary mooring unit. FIGS.
FIGS. 4A and 4B are a top view and a front view, respectively, of an auxiliary mooring unit. FIGS.
FIG. 5 is a diagram for explaining a conventional floating lamppost.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Anchor part 2 Floating part lower part 3 Floating part 3a, 3b Depth adjustment floating part 3c Connection floating part 4 Intermediate floating part 5 Platform part 6 Lamp 7 Water surface 8 Water bottom 9 Storage
13a, 13b Auxiliary mooring part 20 Universal joint

Claims (3)

For lightposts installed underwater,
An anchor portion installed at the bottom of the water, a floating body portion that gives buoyancy to the platform portion that holds the lamp on the water surface, and a connecting means that connects the floating body portion to the anchor portion,
The connection means includes a first connection means and a second connection means that complements the first connection portion.
The floating body portion includes a water depth adjusting floating body portion for adjusting a water depth, and a connecting floating body portion having a cylindrical shape that is provided at a lower portion of the water depth adjusting floating body portion and connects the connecting means and the water depth adjusting floating body portion.
The connecting floating body portion is provided with two auxiliary mooring portions made of an elongated plate connecting the second connecting means,
The auxiliary mooring portions are arranged so that each auxiliary mooring portion is provided at equal intervals in the circumferential direction on the cylindrical surface of the connection floating body portion, and is arranged so as to intersect with each other at a central portion in the connection floating body portion. A floating light mark characterized by being welded to a connecting floating body portion at a penetrating portion and welded to each other at the intersecting central portion . 2. The floating lamppost according to claim 1, wherein the connecting floating body is formed integrally with the first connecting means. The floating lantern according to claim 1, wherein the connecting floating body is formed separately from the first connecting means.

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