JP2018172020A - Window assembly, vessel, and window assembling method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a window assembly, a ship, and a method for assembling a window capable of reducing the effective reflection cross-sectional area of radio waves and suppressing diffused reflection of radio waves. SOLUTION: A window glass 21 provided on a hull capable of navigating on water and having radio wave reflecting glass 36 laminated so that the outside of the ship can be visually recognized from the inside of the ship, covers the outer periphery of the window glass 21, and the window glass 21 is fitted. A window frame 22 having a recess 31a to be inserted and a fixture 23 provided so as to fix the window frame 22 to the hull from the inside of the ship and not to be exposed to the outside of the ship are provided, and the surface of the window glass 21 on the outside of the ship is provided. 36a, the surface 31b of the window frame 22, and the outer surface 11b of the wall portion 11a of the hull are flush with each other. [Selection diagram] Fig. 2

Description

  The present invention relates to a ship window assembly, a ship having a window assembly, and a window assembling method.

2. Description of the Related Art Conventionally, in a ship such as a ship or a patrol ship, a window glass for visually confirming the outside of the ship from the inside of the ship is provided on the bridge.
In a ship, when radio waves (radar waves) are emitted from search radars of other ships or aircraft, the radio waves pass through the window glass and are irregularly reflected by structures (equipment such as control devices) in the ship. . As a result, the effective reflection sectional area (RCS: Radar Cross Section) increases, and the possibility of being detected from a distance by another ship or aircraft increases.

  Here, for example, as disclosed in Patent Document 1, a laminated glass in which radio wave permeability and visible light reflectance are adjusted while ensuring visibility is generally known. By using laminated glass for a ship in this way, it seems possible to suppress irregular reflection due to transmission of radio waves and to reduce the detection distance by the search radar.

JP 2013-6713 A

  However, even if laminated glass is used as described above, it is unavoidable that radio waves are reflected on the surface outside the ship, resulting in irregular reflection of radio waves, and still by other ships and aircrafts. There is a problem that it is difficult to reduce the probability of being detected from a distance. Especially for ships, high strength is required, and it is necessary to firmly hold and fix the window glass by the window frame, and the shape of the window frame itself has to be complicated. It was difficult to avoid the occurrence.

  Therefore, the present invention provides a window assembly, a ship, and a window assembling method capable of reducing a radio wave reflection effective sectional area (RCS) and suppressing radio wave irregular reflection.

  A window assembly according to an aspect of the present invention is provided in a hull capable of navigating on water, and includes a window glass that is laminated with radio wave reflection glass so that the outside can be seen from the inside of the hull, and covers the outer periphery of the window glass. And a window frame having a recess into which the window glass is fitted, and a fixture provided to fix the window frame to the hull from the inside of the hull and not to be exposed to the outside of the hull. And the surface of the window glass on the outside, the surface of the window frame, and the surface of the hull are flush with each other.

According to such a window assembly, the window glass having the radio wave reflection glass that reflects radio waves can reflect the radio waves incident from the outside of the hull, and the amount of radio waves that pass through the window glass and enter the hull. Can be reduced. As a result, it is possible to suppress irregular reflection of radio waves by structures inside the hull.
In addition, the fixture is not exposed to the outside of the hull, and the outer surface of the window glass, the outer surface of the window frame, and the outer surface of the hull are flush with each other around the window assembly. The unevenness of is eliminated. As a result, irregular reflection of radio waves on the outer surface of the hull can be suppressed.

  Further, in the window assembly, the window glass includes a glass main body that fits into the concave portion, and the radio wave reflection glass that is laminated on the outer surface of the glass main body, and the radio wave reflection glass includes: The outer surface may be flush with the surface of the window frame and the surface of the hull.

  Thus, the radio wave reflecting glass is laminated on the surface of the glass body, that is, the outermost surface of the glass body, so that the radio wave can be reflected on the outermost surface of the window glass. For this reason, it is possible to further reduce the amount of radio waves that are transmitted through the window glass and enter the inside of the hull, and further reduce the irregular reflection of the radio waves by the structure inside the hull.

  A ship according to another aspect of the present invention includes the window assembly described above and a hull to which the window frame in the window assembly is fixed.

  According to such a ship, by providing the window assembly described above, the radio wave reflection glass can reflect radio waves incident from the outside of the hull, and the amount of radio waves that are intended to enter the inside of the hull can be reduced. In addition, the fixture is not exposed to the outside of the hull, and the outer surface of the window glass, the outer surface of the window frame, and the outer surface of the hull are flush with each other around the window assembly. The unevenness of is eliminated. Therefore, irregular reflection of radio waves on the outer surface of the hull can be suppressed.

  Further, the window assembling method according to another aspect of the present invention is a window frame in a state where the mounting tool is not exposed from the inside of the hull to the outer surface of the hull by the mounting tool from the inside of the hull. The window glass on which the radio wave reflecting glass that can visually recognize the outside from the inside of the hull so as to cover the window glass from the outer periphery is laminated, the surface of the window glass on the outside, And a step of fitting into a recess provided in the window frame such that the surface of the window frame and the surface of the hull are flush with each other.

  According to such an assembling method, by providing the radio wave reflection glass, it is possible to reflect radio waves incident from the outside of the hull, and to reduce the amount of radio waves entering the inside of the hull. Furthermore, the fixture is not exposed to the outside of the hull, and the outer surface of the window glass, the outer surface of the window frame, and the outer surface of the hull can be flush. For this reason, unevenness is eliminated on the outer surface of the hull around the window glass. Therefore, irregular reflection of radio waves on the outer surface of the hull can be suppressed.

  According to the above-described window assembly, ship, and window assembling method, it is possible to reduce the effective reflection cross-sectional area of radio waves and suppress irregular reflection of radio waves.

1 is a schematic overall view of a ship according to an embodiment of the present invention. It is a longitudinal cross-sectional view of the window assembly in the ship of the embodiment of the present invention. It is a longitudinal cross-sectional view of the window assembly in the ship which concerns on the modification of embodiment of this invention.

Hereinafter, a ship 100 according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2.
As shown in FIG. 1, a ship 100 is, for example, a ship or patrol boat that sails on the water, and includes a hull 1 having a main hull 2 and an upper structure 3 provided on the upper part of the main hull 2. ing.

  The main hull 2 has anchor sides 4A, 4B, a ship bottom 5, and a deck 10. The heel sides 4A and 4B are each composed of a heel side outer plate. The ship bottom 5 consists of a ship bottom outer plate that connects these anchor sides 4A and 4B.

  The upper structure 3 is formed on the deck 10 of the main hull 2 using, for example, a special steel plate. The superstructure 3 includes a bridge 11 and a residential area 12. A window assembly 15 is provided on the front side of the bridge 11 so that the front can be seen from the inside. A plurality of window assemblies 15 are provided side by side in the left-right direction D1. The left-right direction D1 shows the ship width direction orthogonal to the up-down direction D2.

  As shown in FIG. 2, the window assembly 15 includes a window glass 21 that can visually recognize the outside of the ship (the outside of the bridge 11) from the inside of the ship (the inside of the bridge 11), a window frame 22 that supports the window glass 21, and a window And a fixture 23 for fixing the frame 22 to the bridge 11. The window assembly 15 is provided so as to be inclined backward as it goes downward as a whole.

  The window frame 22 is made of, for example, stainless steel, and includes a window support portion 31 on the side of the window glass 21 and a hull fixing portion 32 extending from the window support portion 31 in a direction away from the window glass 21.

  The window support 31 is formed with a recess 31 a that is recessed in a U-shaped cross section in a direction away from the window glass 21. The recessed part 31a is extended in the left-right direction D1 and the up-down direction D2 so that the perimeter of the window glass 21 may be covered from an outer periphery.

  The hull fixing portion 32 has a plate shape, and is disposed so as to overlap the wall portion 11 a along the inner surface of the wall portion (hull) 11 a of the bridge 11. The hull fixing portion 32 is provided so as to protrude from the window support portion 31 at a position closer to the front in the window support portion 31. In a state where the hull fixing portion 32 is overlaid on the wall portion 11a, the outer surface 31b of the window support portion 31 and the outer surface 11b of the wall portion 11a are flush with each other. That is, the surface 31b and the surface 11b are provided with no step.

The window glass 21 has a glass main body 35 fitted in the recess 31 a and a radio wave reflection glass (radar wave reflection glass) 36 laminated on the glass main body 35.
The thickness dimension of the glass main body 35 is slightly smaller than the width dimension of the concave portion 31a in the front-rear direction D3 (that is, the front-rear direction of the hull 1). The glass body 35 is made of a material excellent in elasticity and heat shielding properties. The glass body 35 has a sufficient thickness, and the glass body 35 alone has a sufficient strength. Between the inner surface of the recess 31a and the glass body 35, a resin or rubber seal member 40 is provided. As a result, the glass body 35 is fitted in the recess 31a of the window frame 22 without any gaps.

  The radio wave reflecting glass 36 is laminated on the surface of the glass main body 35 on the outside of the ship, and is bonded, for example. The radio wave reflecting glass 36 is formed of a material that reflects the radar wave R irradiated from another ship 100, an aircraft, or the like, and has a function of transmitting visible light. The thickness h1 of the radio wave reflection glass 36 is set to a dimension between the opening edge 31a1 on the outer side (front side) of the recess 31a in the window frame 22 and the outer surface 31b of the window support 31 and the thickness of the seal member 40. It is equivalent to the dimension h2 including the dimension. As a result, the outer surface 36a of the radio wave reflecting glass 36 is flush with the outer surface 31b of the window support portion 31 and the outer surface 11b of the wall portion 11a. That is, the surface 36a, the surface 31b, and the surface 11b are provided without any step.

  The fixture 23 is a bolt or the like, for example, and is inserted into the hull fixing portion 32 from the inside of the ship and reaches a midway position in the thickness direction of the wall portion 11a of the bridge 11. Thereby, the fixture 23 is provided so that the window frame 22 is fixed to the wall part 11a from the inner side of the ship, and the fixture 23 is not exposed to the outer side of the ship. Here, a washer or hardware may be inserted between the hull fixing part 32 and the wall 11a, and the fixture 23 may be fixed to the washer or hardware.

Next, a method for assembling the window assembly 15 will be described.
First, the process of providing the sealing member 40 in the recessed part 31a of the window support part 31 of the window frame 22 is performed.
Thereafter, the surface of the window glass 21 on the outside of the ship (the surface 36a of the radio wave reflecting glass 36), the surface 31b of the outside of the window of the window support 31 and the surface 11b of the outside of the wall 11a are flush with each other. The window glass 21 is covered with the window frame 22 from the outer periphery, and the step of fitting the window glass 21 on which the radio wave reflection glass 36 is laminated in the recess 31a is executed.
Finally, the process of fixing the window frame 22 to the hull fixing part 32 from the inside of the ship with the fixture 23 is executed.

  According to the ship 100 of this embodiment described above, the window assembly 15 is provided. For this reason, the radio wave reflecting glass 36 that reflects radio waves such as the radar wave R can reflect radio waves incident from the outside of the ship, and the amount of radio waves that are about to enter the inside of the ship can be reduced. As a result, it is possible to suppress the radio waves from being irregularly reflected by the structure inside the ship 11 of the bridge 11.

  Furthermore, the fixture 23 is not exposed to the outside of the ship, and the outer surface 36a of the window glass 21 (the radio wave reflecting glass 36), the outer surface 31b of the window support portion 31 of the window frame 22, and the outer side of the wall portion 11a. The surface 11b is flush. For this reason, unevenness is eliminated around the window assembly 15. As a result, the irregular reflection of the radio wave around the window assembly 15 outside the ship can be suppressed.

  As a result, the effective reflection cross-sectional area (RCS) of radio waves such as radar waves R can be reduced, and the detection distance of the ship 100 by other ships 100 and aircraft can be shortened.

  The radio wave reflecting glass 36 is laminated on the surface of the glass body 35, that is, the outermost surface of the glass body 35, so that the radio wave can be reflected on the outermost surface of the window glass 21. Therefore, it is possible to further reduce the amount of radio waves that are transmitted through the window glass 21 and enter the ship. As a result, it is possible to further reduce the irregular reflection of radio waves by the structure inside the ship.

  Furthermore, the thickness dimension h1 of the radio wave reflection glass 36 is a dimension obtained by adding the thickness dimension of the seal member 40 to the dimension between the outer opening edge 31a1 of the recess 31a and the outer surface 31b of the window support 31. It is equivalent to h2. Only the glass body 35 is fitted in the recess 31 a of the window frame 22. As a result, the strength of the window glass 21 can be given only to the glass body 35, and the radio wave reflection glass 36 is not required to have a high strength. Therefore, various materials can be used for the radio wave reflection glass 36 while making the outer surface 36a of the window glass 21 flush with the outer surface 31b of the window frame 22 and the outer surface 11b of the wall 11a. it can.

Although the embodiments of the present invention have been described in detail with reference to the drawings, the configurations and combinations of the embodiments in the embodiments are examples, and the addition and omission of configurations are within the scope not departing from the gist of the present invention. , Substitutions, and other changes are possible. Further, the present invention is not limited by the embodiments, and is limited only by the scope of the claims.
For example, the radio wave reflecting glass 36 is not necessarily provided on the outermost surface of the glass body 35. Specifically, as shown in FIG. 3, the glass main body 35 and the radio wave reflection glass 36 may be laminated so that the radio wave reflection glass 36 is sandwiched by the glass main body 35 from both sides in the thickness direction.

DESCRIPTION OF SYMBOLS 1 ... Hull 2 ... Main hull 3 ... Superstructure 4A, 4B ... Side 5 ... Ship bottom 10 ... Deck 11 ... Bridge 11a ... Wall part 11b ... Surface 12 ... Residential area 15 ... Window assembly 21 ... Window glass 22 ... Window frame 23 ... Fixture 31 ... Window support part 31a ... Recess 31a1 ... Opening edge 31b ... Surface 32 ... Hull fixing part 35 ... Glass body 36 ... Radio wave reflection glass 36a ... Surface 40 ... Seal member 100 ... Ship D1 ... Left and right direction D2 ... Up and down Direction D3: Front-rear direction R: Radar wave

Claims (4)

A window glass that is provided in a hull capable of navigating on the water, laminated with radio wave reflection glass, and visible from the inside of the hull;
A window frame that covers the outer periphery of the window glass and has a recess into which the window glass fits;
Fixing the window frame to the hull from the inside of the hull, and a fixture provided so as not to be exposed to the outside of the hull;
With
A window assembly in which the surface of the window glass, the surface of the window frame, and the surface of the hull on the outside are flush with each other. The window glass is
A glass body that fits into the recess,
The radio wave reflecting glass laminated on the outer surface of the glass body;
Have
The window assembly according to claim 1, wherein the outer surface of the radio wave reflecting glass is flush with a surface of the window frame and a surface of the hull. A window assembly according to claim 1 or 2,
A hull to which the window frame in the window assembly is fixed;
Ships equipped with. Fixing a window frame to a hull capable of navigating on water in a state where the fixture is not exposed on the outer surface of the hull by a fixture from the inside of the hull;
The window glass laminated with radio wave reflection glass that can be visually recognized from the inside of the hull so as to cover the window glass from the outer periphery, the surface of the window glass on the outside, the surface of the window frame, and A step of fitting into a recess provided in the window frame so that the surface of the hull is flush with the surface;
Window assembly method including

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