JP5197352B2 - Mooring equipment - Google Patents

Description

  The present invention relates to a mooring device for mooring a floating body such as a buoy float that floats on the surface of a water area where the water level varies.

  Conventionally, floating bodies such as buoy floats are floated on the surface of the water and used as landmarks such as lamp buoys and off-limit signs. The floating body is moored by a mooring device, and the range in which the water surface can be moved is regulated within a preset swinging range.

  A conventional mooring device includes a heavy anchor set on the bottom of the water and a mooring line having one end connected to the heavy anchor and the other end connected to a floating body. However, if the floating area is a water area where the water level changes greatly due to tides etc., the distance between the upper and lower sides of the mooring means and the floating body will be shortened at the low water level, the mooring line will be relaxed, and the floating body can move The swing range, which is a large range, becomes larger than that at high water level. Therefore, when the floating body is used as a mark for prohibition of entry, the restricted area is expanded when the water level is low.

  As described above, when mooring a floating body in such a water area, it is necessary to consider that the swinging range is expanded at a low water level. In the past, the number of mooring points of the floating body was increased by a plurality of heavyweights and mooring lines, so that the swing range was reduced.

  In addition, the mooring device disclosed in Patent Document 1 has a hollow column body with an upper end opened in a heavy column set in the bottom of the water, and the column is inserted into the hollow column body so as to be movable up and down. By connecting the floating body to each other by a mooring line, the length of the mooring line extending from the hollow column body is configured to expand and contract following the fluctuation according to the water level of the floating body, and the floating body at the low water level The purpose is to prevent the swirling range of the water from being expanded more than at high water levels.

  As shown in FIG. 6, the mooring device disclosed in Patent Document 2 includes a pulley 102 provided on the bottom surface of the floating body 101 floating on the water surface L, an anchor 103 provided on the water bottom, and one end of the anchor 103. A mooring line 104 that is connected and wound around the pulley 102 and folded back downward, and a weight 105 connected to the other end of the mooring line 104, are formed between the anchor 103 and the pulley 102 by the weight 105. By applying a mooring force P1 to the mooring line 104, the floating body 101 moves up and down following the vertical fluctuation of the water surface L.

  Further, in Patent Document 2, the first mooring connected to the lower end of the floating body 111 floating on the water surface L as shown in FIG. 7A and FIG. 7B shows the low water level state and the high water level state in FIG. A chevron lever 113 having a cord 112, a short side 113a and a long side 113b forming a predetermined angle with respect to the short side 113a, and connecting to the other end of the first mooring cord 112 with a vertex 113c as a fulcrum; And a weight 115 connected to the lower end of the second mooring line 114 having the upper end connected to the tip of the long side 113b of the lever 113, and the lower end of the third mooring line 116 connected to the end of the short side 113a of the angle lever 113. An anchor 117 that is fixed to the bottom of the water is provided.

  As the water surface L moves up and down, the mountain-shaped lever 113 swings up and down around the tip of the short side 113a to which the third mooring line 116 is connected, and the floating body 111 moves up and down following the water surface L.

Japanese Patent Laid-Open No. 7-81669 JP 2002-306862 A

  However, when the mooring location of the floating body is increased, the swinging range of the floating body can be suppressed to some extent, but the swinging of the floating body itself cannot be eliminated. In addition, the increase in mooring points increases the amount of underwater work such as the installation of heavyweights, which complicates the installation work and increases costs.

  On the other hand, in the case of the mooring device disclosed in Patent Document 1, since tension is applied to the mooring line by the weight that moves up and down in the hollow column, the swinging of the floating body itself cannot be eliminated.

  In the case of the mooring device disclosed in Patent Document 2 and in FIG. 6, the weight 105 that applies the mooring force P <b> 1 between the anchor 103 and the pulley 102 is formed of, for example, an iron-based metal and has a large gravity. Transportation and handling to the installation site is cumbersome, requiring a lot of labor and cost.

  The pulley 102 provided on the bottom surface of the floating body 101 is subjected to a mooring force P1 acting via the mooring line 104 by the anchor 103 and a traction force P2 due to the weight 105. Further, the weight W of the pulley 102 acts on the floating body 101, and the total load (P1 + P2 + W) of the mooring force P1, the traction force P2, and the weight W of the pulley 102 acts on the floating body 101. Works. In addition, a large load acts on the joint between the floating body 101 and the pulley 102, and there is a concern that the durability of the floating body 101 and the pulley 102 may be reduced.

  Similarly, in the case of the mooring device disclosed in FIG. 7 of Patent Document 2, the mountain-shaped lever 113 swings around the tip of the short side 113a to which the third mooring line 116 is connected as the water surface L moves up and down. The swing of 111 itself cannot be eliminated. Moreover, since it has the large chevron lever 113, the heavy weight 115, and the 1st-3rd mooring lines 112, 114, 116, the operations, such as conveyance and installation, become complicated.

  Accordingly, an object of the present invention made in view of the above point is that the structure is simple, the work such as transportation and installation is simple and the cost can be reduced, and the floating body can follow the fluctuation of the water level without swinging the floating body. An object of the present invention is to provide a mooring device capable of mooring a slidable up and down.

The invention of the mooring device according to claim 1, which achieves the above object, is a mooring device for mooring a floating body that floats on the surface of a water area in which the water level fluctuates. A pulley apparatus having a free pulley, a base end connected to a floating body floating on the water surface, and a distal end connected to a buoyancy body that is wound around the pulley of the pulley apparatus and folded to float in water. A mooring line for mooring a floating body by buoyancy, and an upper buoyancy body side mooring line guide having a base hole connected to an upper portion of the buoyancy body and a guide hole through which a portion between the floating body and the pulley of the mooring line is inserted. A lower buoyant body side mooring line guide having a base hole coupled to the lower part of the buoyant body and having a guide hole through which a portion between the floating body of the mooring line and the pulley is inserted at the distal end; Turn the upper surface of the heavyweight with a rotating pedestal. Is rotatably supported, a second guide hole portion between the buoyant body and the pulleys of the first guide hole and the mooring lines of the portion between the floating body and the pulley of the mooring above the said pulley is inserted is inserted And a pulley-side mooring line guide for guiding the mooring line to the pulley .

  According to the present invention, in a state where the floating body is floated on the water surface, the buoyancy of the buoyant body floating in the water acts on the tip side of the mooring line, and the mooring line is urged to the buoyant body side via the pulley so that the floating body is The mooring line can be pulled to the pulley side to prevent swinging.

  The mooring device has a simple configuration in which the floating body is pulled by the mooring line via the pulley of the pulley device provided in the heavy load by the buoyancy of the buoyant body to apply the mooring force. Since only the mooring force by the mooring line due to buoyancy acts, the load acting on the floating body is small and the durability of the floating body is improved. Further, the buoyancy body is light, and operations such as transportation and installation are facilitated, excellent installation workability is obtained, and cost can be reduced.

In addition, the upper buoyancy body side mooring line guide and the lower buoyancy body side mooring line guide maintain the buoyancy body in a stable state away from the portion between the floating body of the mooring line and the pulley, and mooring due to the swinging of the floating body and the buoyancy body The entanglement of the rope can be prevented and the smooth operation of the mooring device can be secured.

Further, since the pulley device is rotatably supported on the upper surface of the heavyweight via a rotating pedestal, the pulley device rotates on the heavyweight along with the swinging of the floating body and the buoyant body to prevent the mooring line from being entangled. At the same time, it prevents the mooring line from coming off the pulley.

The invention according to claim 2 is a mooring device for mooring a floating body that floats on the surface of a water area where the water level varies, and a pulley device that includes a heavyweight sinking on the bottom of the water and a rotatable pulley supported by the heavyweight. And a mooring cable that is connected to a floating body that floats on the water surface, is wound around the pulley of the pulley device, and is connected to a buoyant body that floats in water, and mooring the floating body by the buoyancy of the buoyant body An upper buoyant body-side mooring line guide having a proximal end connected to the upper part of the buoyant body and having a guide hole through which a portion between the floating body and the pulley of the mooring line is inserted, and a proximal end of the buoyant body A lower buoyancy body side mooring line guide connected to a lower part and having a guide hole through which a portion between the floating body and the pulley of the mooring line is inserted, and the pulley apparatus has a rotating base on an upper surface of the heavyweight It is to rotatably support, floating descending Characterized by comprising a buoyant body stopper abuts against the body to regulate the falling edge position of該浮force member.

  According to the present invention, since the mooring line is guided to the pulley by the pulley side mooring line guide, it is possible to prevent the mooring line from being entangled due to the swinging of the floating body and the buoyant body, and to prevent the mooring line from coming off the pulley. .

  According to the present invention, when the floating body is swung around at a high water level or in a strong wind or water increase caused by a typhoon or heavy rain, the base end side of the mooring line is pulled by the floating body and the buoyant body hits the buoyancy body stopper. The mooring line is restrained from moving by the buoyant body and the swinging of the floating body can be restricted.

  According to the present invention, the buoyancy of the buoyancy body acts on the tip side of the mooring line while the floating body is floated on the water surface, and the mooring line is pulled and urged to the buoyancy body side via the pulley to prevent the floating body from swinging. The floating body can be moored at a predetermined location on the water surface. In addition, the mooring device has a simple configuration that applies mooring force that acts on the floating body by means of the mooring cable via the pulley by the buoyancy of the buoyant body, which facilitates work such as transportation and installation, and provides excellent installation workability. The cost can be reduced.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a floating body mooring apparatus according to the present invention will be described below with reference to the drawings.

  1 is an overall view at the highest water level for explaining the mooring apparatus according to the present embodiment, FIG. 2 is an enlarged view of a portion A in FIG. 1, FIG. 3 is a cross-sectional view taken along a line II in FIG. FIG. 5 is a sectional view taken along line II-II in FIG. 2, and FIG. 5 is an explanatory view of the operation of the mooring device, showing the state at the lowest water level.

  A water surface L1 shown in FIG. 1 is a water surface at the highest water level in a water area where the water level fluctuates, such as a reservoir of a hydroelectric power plant, and a buoy float 1 is floated. The buoy float 1 has a cylindrical shape in which the outer skin is made of urethane resin and the inside is made of foamed polystyrene, the upper portion 2 is formed in a conical shape, and the bottom portion 3 is formed in a truncated cone shape.

  The mooring device 10 is for mooring the buoy float 1 that floats in such a water area. The mooring device 11 that is submerged in the bottom of the water, the pulley device 20 that is attached to the heavyweight 11, the buoyant body 30 that floats in water, and the pulley device 20. A wire rope (mooring line) 40 wound around the pulley 26 and stretched between the buoy float 1 and the buoyancy body 30 is provided.

  The heavyweight 11 is a weight set on the bottom of the water, and is constituted by a heavy object that is difficult to move easily on the bottom of the water. In the present embodiment, a plurality of concrete blocks 12 are stacked, and the pulley device 20 is attached to the upper surface 11a.

  The pulley device 20 has a plate-like base portion 21 fixed to the upper surface 11 a of the heavyweight 11 by bolts 21 a, and rotatably supports a support base 23 by a rotary base 22 at the center of the upper surface of the base portion 21. . The support base 23 is formed with a pair of support parts 24 (only one shown) facing upward from a base part supported by the rotary base 22.

  A pulley 26 is rotatably supported by a support shaft 25 installed between the upper portions of the support portions 24. A pair of buoyancy body stoppers 28 are spaced apart from the top ends of the extending portions 27 extending upward from the upper ends of the support portions 24 so as to allow the lower buoyancy body side mooring line guides 34 described later to descend. Provided.

  As shown in FIG. 3, a cross-sectional view taken along the line II of FIG. 2 is provided between the pulleys 26 and the buoyant body stopper 28 and extends between the support portions 24 and extends in a direction perpendicular to the support shaft 25 in a plan view. Further, a pulley-side mooring line guide 29 having a first guide hole 29a and a second guide hole 29b for guiding the wire rope 40 to the pulley 26 by inserting the wire rope 40 at each tip is provided. The first guide hole 29a and the second guide hole 29b are separated by a dimension substantially corresponding to the outer diameter of the pulley 26, and substantially correspond to the outer peripheral end of the pulley 26 in a plan view.

  The buoyancy body 30 is formed in a cylindrical shape whose outer skin is made of urethane resin and whose inside is made of foamed polystyrene, and the buoyancy F is set smaller than the buoyancy of the buoy float 1 in a submerged state.

  A base end 33a is supported at the center of the upper part 30a of the buoyancy body 30 via a rotary joint 31 so as to be rotatable in a substantially horizontal direction, and a wire rope 40 is inserted into the tip as shown in FIG. The upper buoyancy body side mooring line guide 33 in which the guide hole 33b used as the holding | maintenance part formed is formed is provided. Similarly, a base end 34a is supported at a central portion of the lower portion 30b of the buoyancy body 30 via a rotary joint 32 so as to be rotatable in a substantially horizontal direction, and a guide serving as a holding portion for holding the wire rope 40 movably at the tip end. A lower buoyancy body side mooring line guide 34 having a hole 34b is provided.

  The upper buoyancy body side mooring line guide 33 and the lower buoyancy body side mooring line guide 34 are slightly longer than the radius of the buoyancy body 30 and have a length substantially corresponding to the radius of the pulley 26. As a result, the buoyancy body 30 is separated from the portion 40A between the buoy float 1 of the wire rope 40 and the pulley 26 by a predetermined distance set by the upper buoyancy body side mooring line guide 33 and the lower buoyancy body side mooring line guide 34. Retained.

  The wire rope 40 is coupled to the center of the bottom 3 of the buoy float 1 via the rotary joint 41 at the base end 40a, and the guide hole 33b of the upper buoyancy body side mooring line guide 33 and the guide of the lower buoyancy body side mooring line guide 34. The hole 34b and the first guide hole 29a of the pulley-side mooring line guide 29 are sequentially passed through, wound around the pulley 26, folded upward, and further penetrated through the second guide hole 29b of the pulley-side mooring line guide 29. 40 b is coupled to the rotary joint 32 together with the base end 34 a of the upper buoyant body side mooring line guide 34.

  According to the mooring device 10 having the above configuration, in a state where the buoy float 1 is floated on the water surface, the buoyancy F of the buoyancy body 30 floating in the water acts on the tip 40b side of the wire rope 40 via the rotary joint 32. The wire rope 40 is pulled and urged toward the buoyancy body 30 via the pulley 26. As a result, a mooring force P that pulls the buoy float 1 to the pulley 26 side is applied to the portion 40A between the pulley 26 and the buoy float 1 of the wire rope 40, and the buoy float 1 has a sinking amount corresponding to the mooring force P. A buoyant force is generated which sinks only to maintain equilibrium with the mooring force P, and the buoy float 1 is prevented from swinging and is moored at a predetermined location on the water surface above the heavyweight 11.

  When the buoy float 1 moves up and down according to the water level that fluctuates between the highest water level L1 shown in FIG. 1 and the lowest water level L2 shown in FIG. 5, the wire rope 40 floats according to the up and down movement of the buoy float 1. The mooring force P is always applied to the buoy float 1 by the wire rope 40 by being pulled from the pulley 26 to the buoyancy body 30 side by the buoyancy F of the body 30 or pulled out by the buoy float 1.

  For example, when the buoy float 1 moves upward due to the rise in the water level, the separation distance between the pulley 26 provided in the heavyweight 11 and the buoy float 1 becomes longer, and the buoyancy body 30 resists the buoyancy F by that much. The wire rope 40 is lowered and pulled out to the buoy float 1 side via the pulley 26.

  On the other hand, when the buoy float 1 moves downward due to the lowering of the water level, the separation distance between the pulley 26 and the buoy float 1 is shortened, and the buoyancy body 30 is raised by the buoyancy F and correspondingly through the pulley 26. The wire rope 4 is pulled into the buoyancy body 30 side.

  In this way, even when the buoy float 1 moves up and down due to the fluctuation of the water level, the portion 40A between the pulley 26 of the wire rope 40 and the buoy float 1 is always kept at the buoyancy F of the buoyancy body 30. The corresponding mooring force P acts, and the buoy float 1 is pulled toward the pulley 26 by the portion 40 A between the pulley 26 and the buoy float 1 of the wire rope 40, and the buoy float 40 is moored at a position above the heavyweight 11. Is done. Therefore, the wire rope 40 can be prevented from being loosened, and the buoyancy float 1 can be prevented from swinging due to the looseness of the wire rope 40.

  Further, the buoyancy body 30 is held at a predetermined distance from the portion 40A between the buoy float 1 of the wire rope 40 and the pulley 26 by the upper buoyancy body side mooring line guide 33 and the lower buoyancy body side mooring line guide 34. Further, it is possible to prevent entanglement of the portion 40B between the buoyancy float 30 and the buoyancy body 30 of the wire rope 40 and the portion 40A between the buoy float 1 and the pulley 26 due to swinging around the buoyancy float 1 and the buoyancy body 30, and a stable mooring force P Is applied to the buoy float 1 via the wire rope 40 to prevent swinging.

Furthermore, the portion 40A between the turn table 2 2 provided further first guide buoy float 1 and the pulley 26 of the hole 29a in the wire ropes 40 of the pulley-side mooring guides 29 between the leader 11 and the pulley 20 Since the portion 40B between the buoyancy body 30 and the pulley 26 is inserted into the second guide hole 29b of the pulley side mooring line guide 29 and separated from each other while being inserted, the wire rope 40 of the buoy float 1 is swung around. The pulley device 20 is rotated by the tension, and the wire rope 40 can be prevented from being entangled with the buoy float 1 and the buoyancy body 30 and the like. Further, the wire rope 40 can be prevented from coming off from the pulley 26.

  On the other hand, when the buoy float 1 is swung around at a high water level, or due to strong wind or water increase caused by a typhoon or heavy rain, the base end 40a side of the wire rope 40 is drawn by the buoy float 1 and FIG. The buoyancy body 30 abuts on the upper surface of the buoyancy body stopper 28 and the lowering of the buoyancy body 30 is restricted, and the upper buoyancy body side mooring line provided on the buoyancy body 30 is restricted. The movement of the wire rope 40 is suppressed by the guide 33 and the lower buoyancy body side mooring line guide 34, and the swing of the buoy float 1 can be restricted.

  Further, according to the mooring device 10 having the above-described structure, only the mooring force P acts on the buoy float 1 by the wire rope 40 via the pulley 26 due to the buoyancy F of the buoyancy body 30. The buoyancy generated is relatively small, and a pulley or the like is not provided, so that the load acting on the buoy float 1 is small and the durability of the buoy float 1 is improved. Further, the buoy float 1 can be reduced in size, and the buoyancy body 30 is extremely light, so that operations such as transportation and installation are facilitated, and excellent installation workability can be obtained, thereby reducing cost.

  The mooring device 10 has a simple configuration in which a mooring force P acting on the buoy float 1 is applied to the buoy float 1 via the pulley 26 by the buoyancy F of the buoyancy body 30, and a plurality of mooring lines are provided as in the related art. The buoy float 1 can be swung around without using a heavy weight or angle lever, so the number of parts can be reduced and the installation work can be simplified, reducing costs. can do.

  In addition, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the meaning of this invention. For example, in the above embodiment, the upper buoyancy body side mooring line guide 33 and the lower buoyancy body side mooring line guide 34 are provided on the upper surface 30a and the lower surface 30b of the buoyancy body 30 via the rotary joints 31 and 32 as the buoyancy body side mooring line guide. However, one of the upper buoyancy body side mooring line guide 33 and the lower buoyancy body side mooring line guide 34 can be omitted, and the buoyancy can be substituted for the upper buoyancy body side mooring line guide 33 and the lower buoyancy body side mooring line guide 34. A buoyancy body side mooring line guide through which a portion 40A between the buoy float 1 of the wire rope 40 and the pulley 26 is inserted can be provided on the outer periphery of the body 30. Moreover, although the case where the mooring line was comprised with the wire rope 40 was demonstrated, a mooring line can also be comprised with a resin rope. Further, the case of the buoy float 1 and the buoyancy body 30 whose outer skin is made of urethane resin and whose inside is made of foamed polystyrene has been described as an example, but the buoy float 1 and the buoyancy body 30 can also be constituted by a hollow body made of plastic or the like.

It is a whole view for demonstrating the mooring apparatus in one embodiment of this invention. Similarly, it is the A section enlarged view of FIG. Similarly, it is the II sectional view taken on the line of FIG. Similarly, it is the II-II sectional view taken on the line of FIG. Similarly, it is operation | movement explanatory drawing of the mooring apparatus which shows the state of low water level maintenance. It is explanatory drawing of the conventional mooring apparatus. It is explanatory drawing of the conventional mooring apparatus.

Explanation of symbols

1 Float float
DESCRIPTION OF SYMBOLS 10 Mooring apparatus 11 Heavy load 11a Upper surface 20 Pulley apparatus 22 Rotating base 23 Support base 24 Support part 26 Pulley 28 Buoyant body stopper 29 Pulley side mooring cable guide 29a First guide hole 29b Second guide hole 30 Buoyant body 30a Upper part 30b Lower part 33 Upper part Buoyancy body side mooring line guide (buoyancy body side mooring line guide)
33a Base end 33b Guide hole (holding part)
34 Lower buoyancy body side mooring line guide (buoyancy body side mooring line guide)
34a Base end 34b Guide hole 40 Wire rope (mooring line)
40A A portion 40B between the buoy float of the wire rope and the pulley 40B A portion 40a between the buoyant body of the wire rope and the pulley 40a Base end 40b Tip L1 Water surface (at the highest water level)
L2 water surface (at minimum water level)

Claims (2)

In a mooring device for mooring a floating body floating on the surface of a water area where the water level fluctuates,
A heavy town to be submerged in the bottom of the water,
A pulley apparatus having a rotatable pulley supported by the heavyweight;
A mooring line that is connected to a floating body that floats on the water surface and is wound around the pulley of the pulley device and is folded back and connected to a buoyant body that floats in water.
An upper buoyancy body side mooring line guide having a base hole connected to the upper part of the buoyancy body and having a guide hole through which a portion between the floating body and the pulley of the mooring line is inserted;
A lower buoyancy body side mooring line guide having a base hole connected to a lower part of the buoyancy body and having a guide hole through which a portion between the floating body and the pulley of the mooring line is inserted;
The pulley apparatus is
It is supported rotatably on the upper surface of the heavyweight via a rotating pedestal ,
A first guide hole through which a portion between the floating body of the mooring line and the pulley is inserted and a second guide hole through which a portion between the buoyant body of the mooring line and the pulley is inserted above the pulley. A mooring apparatus comprising a pulley-side mooring line guide for guiding a cable to a pulley . In a mooring device for mooring a floating body floating on the surface of a water area where the water level varies
A heavy town to be submerged in the bottom of the water,
A pulley apparatus having a rotatable pulley supported by the heavyweight;
A mooring line that is connected to a floating body that floats on the water surface and is wound around the pulley of the pulley device and is folded back and connected to a buoyant body that floats in water, and the mooring line mooring the floating body by the buoyancy of the buoyancy body;
An upper buoyancy body side mooring line guide having a base hole connected to the upper part of the buoyancy body and having a guide hole through which a portion between the floating body and the pulley of the mooring line is inserted;
A lower buoyancy body side mooring line guide having a base hole connected to a lower part of the buoyancy body and having a guide hole through which a portion between the floating body and the pulley of the mooring line is inserted;
The pulley apparatus is
It is supported rotatably on the upper surface of the heavyweight via a rotating pedestal ,
A mooring device comprising a buoyancy body stopper that abuts on a descending buoyancy body and regulates the position of the descending end of the buoyancy body .

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