JP2015085910A - Motorsailer and ship alteration method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a motorsailer and a ship alteration method capable of ensuring a sufficient front visual field and efficiently placing sails on a deck.SOLUTION: A motorsailer includes: a main engine; a propulsion device driven by the main engine; and an auxiliary propulsion device including a plurality of sails 13 placed on a deck 24. The sails 13 are placed along a broadside 27 so that a plurality of front dead angles A1, A2, B1, and B2 generated by the sails 13 from a viewpoint P in a monitoring location within a bridge 25 do not overlap one another, a distance between the front dead angles A1, A2, B1, and B2 is set to not less than five degrees in a horizontal direction, and a total angle of the front dead angles A1, A2, B1, and B2 in the horizontal direction is set less than 20 degrees.

Description

  The present invention relates to a sailing vessel having a main engine and a propulsion device driven by the main engine and having a sail as an auxiliary propulsion device.

  In order to improve the fuel efficiency of a ship, it has been proposed to provide a propulsion device by a main engine and a sail as an auxiliary propulsion device not only on a new ship but also on an existing ship. A ship having a sail, that is, a sailing ship, is required to properly arrange the sail because the sail blocks a forward view.

  An example of such a sailing vessel is described in Patent Document 1 below. The sailing merchant ship described in Patent Document 1 is arranged so that the sail opened in the width direction of the ship in a plan view enters a plurality of fan shapes centering on the viewpoint of the monitoring place in the bridge. Are set so that the central angle is continuously 0 ° or more and within 10 °, and the sum of the sector-shaped central angles is 0 ° or more and within 20 °.

JP 2013-056579 A

  In the conventional sailing merchant ship described above, since the plurality of sails are arranged so that they enter into a fan shape centering on the viewpoint of the monitoring place in the bridge, each sail is spread over the entire width direction of the deck. Will be placed. By the way, ships such as general cargo ships, ore carriers, and bulk carriers generally carry dry cargo with cranes and load them into a cargo hold, and a large hatch is provided on the upper deck of the cargo hold. ing. Therefore, it is difficult for such a cargo ship to arrange a plurality of sails over the entire area in the ship width direction on the deck.

  The present invention solves the above-described problems, and provides a sailboat and a ship remodeling method that can secure a sufficient forward field of view and can efficiently arrange a sail on a deck. Objective.

  In order to achieve the above object, a sailing vessel according to the present invention is a sailing vessel having a main engine and an auxiliary propulsion device having a plurality of sails arranged on the shore side on the deck ahead of the bridge. The sails are arranged so that the front dead angles from the monitoring point of the bridge do not overlap each other, the intervals between the plurality of front dead angles are set to a set angle of 5 degrees or more in the horizontal direction, and the horizontal in the plurality of front dead angles are set. The plurality of sails are arranged so that a total angle of directions is less than 20 degrees.

  Therefore, a plurality of sails are arranged along the heel side so that a plurality of front blind spots generated by a plurality of sails do not overlap, the interval of each front blind spot is 5 degrees or more, and the total angle of each front blind spot is 20 By making it smaller than the above, it is possible to secure a sufficient amount of forward visibility from the monitoring location, and it is possible to efficiently arrange the sail on the deck, and to use other facilities located on the deck. There is no hindrance.

  In the sailboat according to the present invention, the forward blind angle from the monitoring location is a blind spot generated in a field of view above the line of sight overlooking the sea surface at a short point of twice the full length of the hull or 500 m from the bow to the front side. It is characterized by that.

  Therefore, by setting the blind spot generated in the field of view above the line of sight overlooking the front sea surface as the front blind spot, the sail can be efficiently arranged on the deck to ensure a sufficient forward field of view.

  In the sailboat according to the present invention, a lamp is provided at the bow, and the forward blind spot is a blind spot generated by the plurality of sails and the lamp around the viewpoint of the monitoring place.

  Therefore, by setting the blind spot generated by the lamp provided at the bow to the forward blind spot, a sufficient forward view can be ensured.

  In the sailboat according to the present invention, the width of the plurality of sails is set to be larger toward the bow side with respect to each angle determined so that a total angle of forward dead angles by the plurality of sails is less than 20 degrees. The first setting area and the second setting area that is set smaller toward the bow side are set so as to overlap so that the distance between the forward blind spot due to the sail and the forward blind spot due to the lamp is 5 degrees or more. It is characterized by that.

  Therefore, by setting the width of the sail in consideration of the position of the sail in the captain's direction and the light provided at the bow, it is possible to obtain a proper propulsive force while ensuring sufficient forward visibility. The width can be set.

  In the sailboat according to the present invention, a hatch of a hold is provided at a center portion of the deck in the ship width direction, and the plurality of sails are provided on both sides of the hatch.

  Therefore, by providing a plurality of sails on both sides of the hatch, the sail does not interfere with opening / closing of the hatch and loading / unloading of cargo into / from the hold, and the sail can be efficiently arranged on the deck.

  In the sailboat according to the present invention, the plurality of sails are movable to a standing position that stands vertically on the deck and a rollover position that falls on the deck along the heel side. It is characterized in that a certain sail is positioned lower than the hatch.

  Therefore, the sail can be moved from the standing position on the deck to the rollover position along the heel side. At this time, by placing the sail in the rollover position at a position lower than the hatch, the sail enters and leaves the cargo space. Therefore, cargo handling work can be carried out efficiently.

  In the sailboat according to the present invention, the plurality of sails are arranged along the vertical direction on the deck and supported so as to be horizontally turnable, and the interval and the total angle of the plurality of forward blind spots become the set angle. As described above, a control device for controlling the turning position of the sail is provided.

  Therefore, by controlling the sail turning position so that the interval and the total angle of the plurality of forward blind spots become the set angle, a sufficient amount of forward visibility can be secured without being restricted by the width of the sail. .

  In the sailing vessel according to the present invention, the plurality of sails are arranged along the vertical direction on the deck and supported so as to be horizontally turnable, and soft sails that can be deployed and stored with respect to the hard sails. A sail is provided, and the control device controls a deployment position of the soft sail so that an interval and a total angle of the plurality of front blind spots become the set angle.

  Therefore, by controlling the deployment position of the soft sail so that the interval and the total angle of the plurality of front blind spots become the set values, it is possible to ensure a sufficient amount of forward visibility without being restricted by the width of the sail. it can.

  The sailboat according to the present invention is characterized in that a plurality of viewpoints of the monitoring place are provided.

  Therefore, providing a plurality of viewpoints of the monitoring place can increase the width of the sail and increase the propulsive force.

  The sailboat according to the present invention is characterized in that an imaging device that images the forward blind spot and a display device that is provided at the monitoring location and displays an image of the forward blind spot captured by the imaging device are provided. .

  Therefore, the imaging device captures the front blind spot, and displays the front blind spot image captured by the imaging device on the display device, thereby reducing the front blind spot and increasing the forward field of view.

  Further, the ship remodeling method of the present invention is a ship remodeling method in which a plurality of sails are additionally installed on an exposed deck of a ship having a main engine, and after performing reinforcement work on the exposed deck and the back surface, The plurality of sails are arranged along the heel side so that the plurality of front blind spots generated by lighting of the plurality of sails and the bow around the viewpoint of the monitoring place in the bridge do not overlap, and the horizontal at the plurality of front dead spots is horizontal. The total angle of the direction is set to be less than 20 degrees.

  Therefore, it is possible to easily add a plurality of sails on the exposed deck of the ship, and at this time, efficiently arrange a plurality of sails on the deck capable of securing a sufficient amount of forward visibility from the monitoring location. Can do.

  According to the sailboat and ship remodeling method of the present invention, the plurality of sails are arranged along the heel side so that the plurality of front blind spots generated by the plurality of sails do not overlap, and the interval between the front blind spots is 5 degrees. As described above, since the total angle of the front blind spots is smaller than 20 degrees, a sufficient amount of front field of view can be secured from the monitoring place, and the sail can be efficiently arranged on the deck.

FIG. 1 is a schematic plan view showing the arrangement of sails in the sailing vessel of the present embodiment. FIG. 2 is a schematic plan view showing a retracted state of the sail in the sailing vessel. FIG. 3 is a schematic side view of the sailboat. FIG. 4 is a schematic front view showing a sail. FIG. 5 is a schematic plan view showing a sail. FIG. 6 is a schematic configuration diagram illustrating a sail drive device. FIG. 7 is a graph for explaining the optimum position of the sail width with respect to the ship length direction. FIG. 8 is an overall configuration diagram showing a modified example of the sailboat according to the present embodiment.

  Exemplary embodiments of a sailboat and a ship remodeling method according to the present invention will be described below in detail with reference to the accompanying drawings. In addition, this invention is not limited by this Example, Moreover, when there exists multiple Example, what comprises combining each Example is also included.

  FIG. 1 is a schematic plan view showing the arrangement of sails in a sailboat according to the present embodiment, FIG. 2 is a schematic plan view showing a storage state of sails in the sailboat, and FIG. 3 is a schematic side view of the sailboat. 4 is a schematic front view showing the sail, FIG. 5 is a schematic plan view showing the sail, FIG. 6 is a schematic configuration diagram showing the sail drive device, and FIG. 7 is an optimum position of the sail width with respect to the ship length direction. A graph for explanation, FIG. 8, is an overall configuration diagram showing a modification of the sailing ship of the present embodiment.

  In this embodiment, as shown in FIGS. 2 and 3, the sailing vessel 10 is, for example, a general cargo ship, an ore carrier ship, or a bulk carrier ship. The sailing vessel 10 is equipped with a main engine (for example, a diesel engine) 11 and a propulsion device 12 driven by the main engine 11, and an auxiliary propulsion device 14 having a plurality of sails 13 arranged on a deck. It is installed.

  In this sailboat 10, an engine room is defined on the stern side of the bottom of the hull 21, and the main engine 11 is disposed in this engine room. In the main engine 11, a propulsion device 12 is configured by drivingly connecting a propeller 22 that transmits a propulsive force. Further, a rudder 23 for controlling the direction of the hull 21 is provided at the stern.

  The hull 21 is provided with a bridge 25 as a monitoring place on the stern side of the deck (exposed deck) 24. The hull 21 is provided with a plurality of holds (not shown) therein, and a hatch 26 that can open and close a hold formed on the deck 24. The hatch 26 is disposed at the center of the deck 24 in the ship width direction, and a plurality (six in this embodiment) are provided along the ship length direction. A plurality of sails 13 are arranged on the left and right of each hatch 26 on the deck 24 and along the heel side 27. In this embodiment, two sails 13 are arranged along the captain direction on the port side, and two sails 13 are arranged along the captain direction on the starboard side.

  In the hull 21, a light 28 is provided by a pole 29 on the bow side of the deck 24.

  As shown in FIG. 1, the sailing vessel 10 of the present embodiment configured as described above has a plurality of forward blind spots A1, A2, B1, B2 generated by a plurality of sails 13 around the viewpoint P in the bridge 25. A plurality of sails 13 are arranged along the heel side 27 so as not to overlap each other. Each sail 13 has a plurality of front blind spots A1, A2, B1, and B2 with angles α1, α2, β1, and β2 set to 5 degrees or more in the horizontal direction, and a plurality of front blind spots A1, A2, and so on. The total of the horizontal angles a1, a2, b1, and b2 in B1 and B2 is set to be less than 20 degrees. Here, the distance between the front blind spots A1, A2, B1, and B2 is the distance between the adjacent front blind spots A1, A2, B1, and B2, that is, a line-of-sight angle that does not become a blind spot (line-of-sight angle).

  However, since the sailboat 10 is provided with a lamp 28 at the bow of the deck 24, a forward blind spot C generated by the lamp 28 is generated around the viewpoint P in the bridge 25 and is generated by each sail 13. A plurality of sails 13 are arranged so as not to overlap with the plurality of front blind spots A1, A2, B1, B2. Therefore, in practice, the angles α1, α2, β1, β2 of the intervals between the plurality of front blind spots A1, A2, B1, B2, C are set to 5 degrees or more in the horizontal direction, and the plurality of front blind spots A1, A2, B1 are set. , B2 is set such that the sum of the horizontal angles a1, a2, b1, b2, c is less than 20 degrees.

  Further, forward blind spots A1, A2, B1, B2, C from the bridge 25 are generated in a field of view above the line of sight overlooking the sea surface at a short point of twice the full length of the hull 21 or 500 m from the bow to the front side. It is a blind spot. That is, as shown in FIG. 3, the line of sight overlooking point Q of the sea surface (draft) S ahead from the viewpoint P in the bridge 25 by a distance L which is twice the full length of the hull 21 or 500 m from the bow. When R is set, the front blind spots A1, A2, B1, B2, and C are defined by a field of view above the line of sight R.

  Here, the sail 13 will be described in detail. In the sail 13, as shown in FIGS. 4 and 5, the post 31 is fixed to the hull 21 and provided to protrude on the deck 24. This post 31 has a hard sail 33 arranged along the vertical direction at the top via a turning device 32, and the hard sail 33 can be turned horizontally by the turning device 32. The hard sail 33 has a wing shape in the horizontal cross section, and a lower end portion thereof can be tilted up and down by a tilting shaft 34. That is, the hard sail 33 is freely movable between a standing position that stands vertically on the deck 24 and a rollover position that falls on the deck 24 along the heel side 27.

  Further, the base end portion of the boom 35 of the hard sail 33 can be tilted up and down by the support shaft 36. That is, the boom 35 is movable between a horizontal position parallel to the deck 24 and a vertical position integrated with the hard sail 33. The soft sail 37 has a triangular shape and can be wound around a winding device 38 in which one side portion along the vertical direction is disposed in the hard sail 33. Further, the soft sail 37 is supported by the slider device 39 at the lower end portion of the other side portion along the inclination direction. The slider device 38 supports the lower end portion of the other side portion of the soft sail 37 so as to be movable along the boom 35.

  Therefore, the soft sail 37 can be unfolded by unwinding the soft sail 37 by the winding device 38 and moving the lower end portion of the other side portion of the soft sail 37 to the distal end side of the boom 35 by the slider device 39. On the other hand, the soft sail 37 is taken up by the take-up device 38, and the lower end portion of the other side portion of the soft sail 37 is moved to the proximal end side of the boom 35 by the slider device 39, so that the soft sail 37 can be accommodated. it can.

  In the sail 13, as shown in FIG. 6, the drive source (for example, motor) 41 of the turning device 32, the drive source (for example, hydraulic cylinder) 42 for raising and lowering the hard sail 33, and the boom 35 are raised and lowered. A drive source (for example, a hydraulic cylinder) 43 and a drive source (for example, a motor) 44 for the winding device 38 and the slider device 39 are provided. Each drive source 41, 42, 43, 44 can be controlled by a control device 45. An operation device 46 is provided on the bridge 25 and an operation signal can be output to the control device 45. An anemometer (an air flow meter) 47 and an anemometer 48 are provided, and a measurement result is input to the control device 45.

  In this embodiment, the soft sail 37 can be wound on the winding device 38 disposed in the hard sail 33, but the present invention is not limited to this configuration. For example, the soft sail 37 may be wound on a winding device disposed in the boom, and the boom may be raised and lowered to the hard sail 33 side.

  Normally, the control device 45 drives the drive source 41 so that the propulsive force of the sailing vessel 10 is optimized based on the wind speed (air volume) measured by the anemometer 47 and the wind direction measured by the anemometer 48. And the direction of the sail 13 is adjusted by the turning device 32. In this case, the control device 45 may control the directions of the sails 13 integrally or individually.

  In addition, the control device 45 stores the sails 13 in a folded manner when the wind is strong enough to cause a safety problem, when the wind direction is bad and propulsion cannot be obtained, or when cargo handling is performed at the port. To do. That is, as shown in FIG. 4, in the state where the hard sail 33 is in the standing state and the soft sail 37 is deployed, the soft sail 37 is first wound by the winding device 38 and the soft sail 37 is taken by the slider device 39. The soft sail 37 is accommodated in the hard sail 33 by moving the lower end portion of the other side portion of the 37 to the proximal end side of the boom 35. Next, the boom 35 is rotated in the F1 direction toward the vertical state and integrated with the hard sail 33. Then, the boom 35 is rotated together with the hard sail 33 toward the deck 24 in the F2 direction, and moved to the rollover position along the side 27. In this case, the direction in which the sails 13 are tilted may be the bow direction or the stern direction, and the two sails 13 may be adjacent and parallel at the rollover position by making the direction in which the front and rear sails 13 fall different. .

  At this time, if the height of the hatch 26 on the deck 24 is H1, and the height when each sail 13 is moved to the rollover position on the deck 24 is H2, the height H1 of the hatch 26 on the deck 24 is The height H2 of each sail 13 when moved to the rollover position on the deck 24 is configured to be low. Therefore, the sails 13 do not hinder the opening and closing of the hatch 26, and the crane access to the hold opened by the hatch 26 does not hinder.

  By the way, in order to ensure a large propulsive force by the plurality of sails 13, it is desirable to increase the width of the sails 13 and widen it in the ship width direction. However, when the width of the sail 13 is increased, the front blind spot is increased and it is difficult to ensure a safe view. A plurality of forward blind spots A 1, A 2, B 1, B 2, and C are forward blind spots generated by each sail 13 around the viewpoint P in the bridge 25. Therefore, the width of the sail 13 arranged closer to the viewpoint P in the bridge 25 needs to be reduced, and the width of the sail 13 arranged on the bow side can be increased. On the other hand, since there is a lamp 28 at the bow, and there is a front blind spot C (angle c) due to this lamp 28, the distance between the front blind spots B1, B2 due to the sail 13 and the front blind spot C due to the lamp 28 is taken into account. It is necessary to reduce the width of the sail 13 arranged on the side.

  That is, as shown in FIG. 7, the widths of the plurality of sails 13 are respectively set to angles a1, a2, b1, and b2 that are determined so that the total angle of the front dead angle of the plurality of sails 13 is less than 20 degrees. The first partition line W1 that is set larger toward the bow side, the forward blind spots B1 and B2 due to the sail 13, and the forward blind spot C due to the lamp 28 are set smaller toward the bow so that the interval is 5 degrees or more. The second partition line W2 can be set. The lower part of the first partition line W1 is the first setting area, the lower part of the second partition line W2 is the second setting area, and the widths of the plurality of sails 13 are the first setting area and the second setting area. Are set in the overlapping area W3, and the installation positions are set apart so that the intervals between the front blind spots A1, A2, B1, and B2 are 5 degrees or more.

  As described above, the angles α1, α2, β1, β2 of the intervals of the front blind spots A1, A2, B1, B2, C are 5 degrees or more, and the angles a1, a2 of the front blind spots A1, A2, B1, B2, C are each. , B1, b2, and c, the width of the sail 13 is set within each region W3 for each angle a1, a2, b1, and b2 that is determined to be less than 20 degrees. In that case, the sizes of the plurality of sails 13 may be different or may be set to be the same. For example, as shown in FIG. 3, the optimum propulsive force is ensured by reducing the width of the stern-side sail 13b arranged near the bridge 25 and increasing the width of the bow-side sail 13a arranged on the bow side. can do. Further, when the length D from the bow to the bridge 25 and the interval between the two sails 13 are D1 and the interval D2 from the stern sail 13 to the bridge 25 is shown in FIG. 3, the interval D1 is larger than D2. It is good to do. For example, it is desirable to set D: D1: D2 to 100: 40: 25.

That is, the relationship between the distance D2 between the two sails 13 and the distance D2 from the stern-side sail 13 to the bridge 25 may be D1> D2. In this case, from a commercial viewpoint, if the size of the sail 13 can be standardized, the cost can be reduced. Therefore, it is considered that the sails 13 having the same size are arranged on the bow side and the stern side. At this time, the angle θ1 between the bow mast center and the stern mast center needs to be 5 ° (α1 lower limit) + a1. On the other hand, the angle θ2 between the mast center on the bow side and the hull center line needs to be c / 2 + 5 ° (α2 lower limit) + a2. If the size of the sail 13 is the same, a1> a2, and c is sufficiently small, so that even if c / 2 is taken into consideration, θ1> θ2.
D2 = ship width / (2 × tan (θ1 + θ2)) D1
= Ship width / (2 × tan θ2) −D2
From θ1> θ2 to 1 / tan θ2> 2 / (tan (θ1 + θ2)), D1> D2.

  Further, as shown in FIG. 6, the plurality of sails 13 (the hard sail 33 and the soft sail 37) are supported on the deck 24 so as to be able to turn horizontally, and the control device 45 turns based on the wind speed (air volume) and the wind direction. The direction of the sail 13 is adjusted by the device 32. Therefore, the width of each sail 13 is set larger than the set value, the angles α1, α2, β1, β2 of the intervals between the front blind spots A1, A2, B1, B2, C are 5 degrees or more, and the front blind spots A1, The turning position of the sail 13 may be controlled so that the sum of the angles a1, a2, b1, b2, and c of A2, B1, B2, and C is less than 20 degrees.

  Further, the soft sail 37 constituting the sail 13 is supported so as to be movable in the horizontal direction with respect to the hard sail 33, and the control device 45 deploys or stores the soft sail 37 as necessary. Therefore, the width of each sail 13 is set larger than the set value, the angles α1, α2, β1, β2 of the intervals between the front blind spots A1, A2, B1, B2, C are 5 degrees or more, and the front blind spots A1, You may make it control the expansion | deployment position of the soft sail 37 so that the sum total of each angle a1, a2, b1, b2, c of A2, B1, B2, C may be less than 20 degree | times. Further, the front blind spots A1, A2, B1, B2, and C themselves are approximately when the soft sail 37 is fully deployed (for example, 87.5 degrees when the ship's front direction is 0 degree and the ship width direction is 90 degrees). ), The angles α1, α2, β1, β2 of the front dead angles A1, A2, B1, B2, C are 5 degrees or more, and the front dead angles A1, A2, B1, B2, C You may make it control the angle of the soft sail 37 so that the sum total of each angle a1, a2, b1, b2, c may be less than 20 degree | times.

  In the present embodiment, the soft sail 37 has a triangular shape, but is not limited to this shape. For example, the soft sail 37 may have a rectangular shape, a trapezoidal shape, or the like, and an inclined side portion may have a curved shape.

  Further, as a method of reducing the front blind spots A1, A2, B1, B2, and C, the front blind spots A1, A2, B1, B2, and C may be photographed and displayed on the bridge 25. As shown in FIG. 8, a camera (imaging device) 51 that captures the areas of the front blind spots A1, A2, B1, and B2 is provided on the front portion of the sail 13, and the front blind spots A1, A2 captured by the camera 51 on the bridge 25 are provided. , B1 and B2 are provided with a display (display device) 52. Then, when the video of the blind spots A1, A2, B1, B2 by the camera 51 is input, the control device 45 displays the video on the display 52 of the bridge 25, and the occupant can view the video. The front blind spots A1, A2, B1, and B2 can be reduced. In addition, a camera (imaging device) that captures the area of the front blind spot C may be provided on the lamp 28, and a display (display device) that displays an image of the front blind spot C captured by the camera may be provided on the bridge 25.

  In this case, a display device may be used instead of the sail 13 as white, and a projector that projects the images of the front blind spots A1, A2, B1, and B2 by the camera 51 on the sail 13 may be provided. In this case, the occupant only needs to look forward without looking at the display 52, and the front blind spots A1, A2, B1, B2 can be reduced.

  In this embodiment, the bridge 25 is provided as a monitoring place and the viewpoint P is secured here, but a plurality of viewpoints P may be provided on the bridge 25. In this case, it is desirable to provide a window cleaning device (for example, a wiper, a cleaning liquid injection device, etc.) on the front window of the bridge 25.

  The sailing vessel 10 according to the present embodiment includes a main engine 11 and a propulsion device 12 driven by the main engine 11, and an auxiliary propulsion device 14 having a plurality of sails 13 arranged on a deck 24. It is installed. In this case, the sailboat 10 can be obtained by performing a modification to newly install the auxiliary propulsion device 14 having the plurality of sails 13 on the ship on which the main engine 11 and the propulsion device 12 are mounted.

  That is, the ship remodeling method of the present embodiment is a ship remodeling method in which a plurality of sails 13 are additionally provided on the exposed deck 24 of the ship having the main engine 11, and reinforcement work is performed on the exposed deck 24 and the back surface. After the application, the plurality of sails 13 are arranged so that the plurality of sails 13 and the plurality of front blind spots A1, A2, B1, B2, C generated by the lights 28 around the viewpoint P of the monitoring place in the bridge 25 do not overlap. Arranged along the heel side 27, the interval between the plurality of front blind spots A1, A2, B1, B2, C is set to 5 degrees or more in the horizontal direction, and the horizontal in the plurality of front blind spots A1, A2, B1, B2, C is set. The total angle of the direction is set to be less than 20 degrees.

  Here, the reinforcement work means that a seating board is provided on the exposed deck 24 where the plurality of sails 13 are additionally installed to reinforce, a reinforcing aggregate is additionally provided on the back of the exposed deck 24, or by welding. It is something to fix.

  Thus, in the sailboat according to the present embodiment, the main engine 11, the propulsion device 12 driven by the main engine 11, and the auxiliary propulsion device 14 having the plurality of sails 13 arranged on the deck 24 are provided. The plurality of sails 13 are arranged along the anchor side 27 so that the plurality of forward blind spots A1, A2, B1, B2 generated by the plurality of sails 13 around the viewpoint P of the monitoring place in the bridge 25 are not overlapped. The angles a1, a2, b1, b2 of the intervals between the plurality of front blind spots A1, A2, B1, B2 are set to 5 degrees or more in the horizontal direction, and the horizontal directions in the plurality of front blind spots A1, A2, B1, B2 are set. The sum of the angles α1, α2, β1, and β2 is set to be less than 20 degrees.

  Therefore, by arranging the plurality of sails 13 along the heel side 27 so that the plurality of front blind spots A1, A2, B1, and B2 generated by the plurality of sails 13 do not overlap, a sufficient amount of front view can be seen from the monitoring location. In addition, since the sail 13 can be efficiently disposed on the deck 24, the use of other facilities disposed on the deck 24 is not hindered.

  In the sailing ship of this embodiment, the forward blind spots A1, A2, B1, and B2 from the monitoring location are above the line of sight overlooking the sea surface at a short point of twice the full length of the hull 21 or 500 m from the bow to the front side. It is a blind spot that occurs in the field of view. Therefore, by setting the blind spots generated in the field of view above the line of sight overlooking the front sea surface as the front blind spots A1, A2, B1, and B2, the sail 13 can be efficiently arranged on the deck 24 to ensure a sufficient forward field of view. can do.

  In the sailboat according to the present embodiment, the lamp 28 is provided at the bow, and the blind spots generated by the plurality of sails 13 and the lamps 28 around the viewpoint P of the monitoring place are the front blind spots A1, A2, B1, B2, C. It is said. Therefore, by setting the blind spot generated by the lamp 28 provided at the bow to the forward blind spot C, a sufficient forward view can be secured.

  In the sailboat according to the present embodiment, the widths of the plurality of sails 13 are set to the angles a1, a2, b1 determined so that the intervals between the front dead angles A1, A2, B1, B2 by the plurality of sails 13 are 5 degrees or more. , B2 such that the interval between the first setting area for setting the width of the sail 13 in each area W3 and the front dead angle B1, B2 by the sail 13 and the front dead angle C by the lamp 28 is 5 degrees or more. Is set in a region W3 that overlaps with the second setting region set smaller toward the bow side. Accordingly, by setting the width of the sail 13 in consideration of the position of the sail 13 in the captain direction and the lamp 28 provided on the sail 13, an appropriate propulsive force can be obtained while ensuring a sufficient forward view. The width of the sail 13 can be set.

  In the sailboat according to the present embodiment, the hatch 26 of the hold is provided in the center of the deck 24 in the ship width direction, and a plurality of sails 13 are provided on both sides of the hatch 26. Therefore, the sail 13 does not interfere with the fittings between the hatches 26, and the sail 13 can be efficiently arranged on the deck 24.

  In the sailboat according to the present embodiment, the plurality of sails 13 can be moved to a standing position that stands vertically on the deck 24 and a rollover position that falls on the deck 24 along the side 27 and is in the rollover position. The height H2 of the sail 13 is set lower than the height H1 of the hatch 26. Therefore, when not in use, the sail 13 can be rolled over along the side 27, and the sail 13 in the rollover position is positioned at a position lower than the hatch 26, so that the sail 13 interferes with cargo handling to the hold. The cargo handling work can be carried out efficiently.

  In the sailboat according to the present embodiment, a plurality of sails 13 are arranged on the deck 24 along the vertical direction and supported so as to be able to swivel horizontally, and the distance between the plurality of front blind spots A1, A2, B1, B2, C and the total are totaled. A control device 45 that controls the turning position of the sail 13 is provided so that the angle becomes the set angle. Therefore, by controlling the turning position of the sail 13 so as to ensure a sufficient field of view, a sufficient amount of forward field of view can be secured without being restricted by the width of the sail 13.

  In the sailboat according to the present embodiment, a plurality of sails 13 are arranged along the vertical direction on the deck 24 and are supported so as to be horizontally turnable. The soft sail 37 is provided, and the control device 45 controls the deployment position of the soft sail 37 so that the interval and the total angle of the plurality of forward blind spots A1, A2, B1, B2, C are set values. Therefore, by controlling the deployment position of the soft sail 37 so as to ensure a sufficient field of view, a sufficient amount of forward field of view can be secured without being restricted by the width of the sail 13.

  In the sailboat according to the present embodiment, a plurality of viewpoints P of the monitoring place are provided. Accordingly, the front blind spots A1, A2, B1, B2, and C can be reduced, and the width of the sail 13 can be increased to increase the propulsive force.

  In the sailboat according to the present embodiment, a camera 51 that captures the forward blind spots A1, A2, B1, and B2 and an image of the forward blind spots A1, A2, B1, and B2 that are provided on the bridge 25 and captured by the camera 51 are displayed. A display 52 is provided. Accordingly, the camera 51 captures the front blind spots A1, A2, B1, and B2 and displays the images of the front blind spots A1, A2, B1, and B2 on the display 52, thereby reducing the front blind spots A1, A2, B1, and B2. To increase the forward field of view.

  Further, in the ship remodeling method of this embodiment, the ship is remodeled by adding a plurality of sails 13 on the exposed deck 24 of the ship having the main engine 11, on the exposed deck 24 and on the back surface. After the reinforcement work, a plurality of front blind spots A1, A2, B1, B2, C generated by the plurality of sails 13 and the lights 28 around the viewpoint P of the monitoring place in the bridge 25 are not overlapped. The sail 13 is arranged along the heel side 27, and the intervals between the plurality of front blind spots A1, A2, B1, B2, C are set to 5 degrees or more in the horizontal direction, and the plurality of front blind spots A1, A2, B1, B2, The horizontal total angle at C is set to be less than 20 degrees.

  Therefore, a plurality of sails 13 as auxiliary propulsion devices 14 can be easily added to the ship. At this time, a plurality of sails 13 that can secure a sufficient amount of forward visibility from the bridge 25 are provided on the deck 24. It can be arranged efficiently. Moreover, the strength of the ship does not decrease by installing the plurality of sails 13 after the reinforcement work is performed on the exposed deck 24 and the back surface.

  In the above-described embodiment, the plurality of sails 13 are arranged on the both-sides 27 side of the deck 24 of the hull 21, but may be arranged only on one side of the starboard or port. Further, the number of sails 13 arranged on one side 27 is not limited to two and may be three or more. Moreover, it is not necessary to make the number and position of the sail 13 arrange | positioned at starboard and port side correspond, and you may make it differ.

  Further, in the above-described embodiment, the front blind spots A1, A2, B1, B2, and C generated by the plurality of sails 13 and the bow lights 28 around the viewpoint P of the monitoring place in the bridge 25 do not overlap. Although the plurality of sails 13 are arranged along the heel side 27, the obstacles that cause blind spots are not limited to the lights 28 other than the sails 13, and other cranes, radar masts, etc. are generated. A plurality of sails 13 may be arranged in consideration of blind spots.

DESCRIPTION OF SYMBOLS 10 Sailing vessel 11 Main engine 12 Propulsion device 13 Sail 14 Auxiliary propulsion device 21 Hull 24 Deck 25 Bridge (monitoring place)
26 Hatch 27 Minor side 28 Light 33 Hard sail 37 Soft sail 45 Control device 51 Camera (photographing device)
52 Display (display device)
A1, A2, B1, B2, C Forward blind spot

Claims (11)

In a sailing vessel having a main engine and an auxiliary propulsion device having a plurality of sails arranged on the shore side on the deck ahead of the bridge,
The sails are arranged so that the front blind spots from the monitoring point of the bridge do not overlap,
The plurality of sails are arranged such that the interval between the plurality of front blind spots is set to a set angle of 5 degrees or more in the horizontal direction, and the total angle in the horizontal direction of the plurality of front blind spots is less than 20 degrees. A characteristic sailing ship.   The front blind spot from the monitoring location is a blind spot generated in a field of view above a line of sight overlooking the sea surface at a short point of twice the total length of the hull or 500 m from the bow to the front side. The sailing ship described in   3. The sailing machine according to claim 1, wherein a lamp is provided at a bow, and the forward blind spot is a blind spot generated by the plurality of sails and the lamp around a viewpoint of the monitoring place. boat.   The widths of the plurality of sails include a first setting region that is set larger toward the bow side with respect to each angle determined so that a total angle of forward dead angles by the plurality of sails is less than 20 degrees, and the sail 4. The second setting area that is set smaller toward the bow side is set so as to overlap with a front dead angle caused by the lamp and a front dead angle caused by the lamp so as to be 5 degrees or more. The sailing ship described in   5. The hatch according to claim 1, wherein a hatch of a hold is provided at a center portion of the deck in the width direction of the ship, and the plurality of sails are provided on both sides of the hatch. Sailing ship.   The plurality of sails are movable between a standing position that stands vertically on the deck and a rollover position that falls on the deck along the heel side, and the sail in the rollover position is lower than the hatch. The sailing vessel according to claim 5, wherein the sailing vessel is located at a position.   The plurality of sails are arranged along the vertical direction on the deck and supported so as to be able to swivel horizontally, and the swivel positions of the sails are set so that the interval and the total angle of the plurality of forward blind spots become the set angle. The sailing vessel according to any one of claims 1 to 6, wherein a control device for controlling is provided.   The plurality of sails are provided with a hard sail that is arranged along the vertical direction on the deck and is supported so as to be able to turn horizontally, and a soft sail that can be deployed and stored with respect to the hard sail. The sailing vessel according to claim 7, wherein a deployment position of the soft sail is controlled so that an interval and a total angle of the plurality of front blind spots become the set angle.   The sailboat according to any one of claims 1 to 8, wherein a plurality of viewpoints of the monitoring place are provided.   10. The photographing apparatus according to claim 1, further comprising a photographing device that photographs the front blind spot, and a display device that is provided at the monitoring location and displays an image of the front blind spot photographed by the photographing device. The sailboat according to any one of the above. A method of remodeling a ship in which a plurality of sails are added on the exposed deck of a ship having a main engine,
After applying reinforcement work on the exposed deck and backside,
The plurality of sails are arranged along the heel side so that the plurality of forward blind spots generated by the lighting of the plurality of sails and the bow are not overlapped around the viewpoint of the monitoring place in the bridge,
The horizontal total angle in the plurality of front blind spots is set to be less than 20 degrees.
A ship remodeling method characterized by the above.

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