Floating Floor Panels

Abstract

To provide an installation method of a floating floor panel capable of suppressing relative movement between floating floor panels after their engagements while making an engaging work between the floating floor panels easier and capable of making cracks on the surface of a finishing material less likely to occur.SOLUTION: A first side part 11 of a metal plate 10 has a first vertical plate part 11a, a first horizontal plate part 11b, and a first outer plate part 11c. A second side part 12 of the metal plate 10 has a first abutment plate part 12a abutting against the upper end of the first vertical plate part 11a held by another metal plate 10, and extending downward, and a first engaging plate part 12b extending to the first outer plate part 11c held by another metal plate 10.SELECTED DRAWING: Figure 8

Description

[Technical field]

[0001] The present invention relates to a floating floor panel that is installed on a floor structure and a method for installing the floating floor panel. [Background technology]

[0002] For example, floating floors are known as a noise countermeasure for ships. The main noise sources of a ship are the main engine and generator, and in order to reduce structure-borne sound that is transmitted as vibration from the floors and walls of the engine room where these are installed to the floors and walls of the accommodation space on the upper floors, and air-borne sound that is emitted directly from the noise source, the floating floors are sometimes constructed by using metal floor panels (see, for example, Patent Documents 1 to 4).

[0003] The floating floor panels generally used on ships are made of steel plates about 3.2 mm thick with a density of 150 to 250 kg / m 3 The weight of a floating floor panel with this structure is 35 to 45 kg / m 2 When installed on the floor structure of a ship, the size of one floating floor panel is about 1m 2 Although they are smaller than the 2014 model, each one still weighs around 25 to 35 kg.

[0004] Furthermore, when installing floating floor panels on the floor structure of a ship, a structure is known in which a framework is provided on the floor structure, and the floating floor panel is placed on the framework and secured in place with screws, as disclosed in Patent Document 1, for example.

[0005] In addition, in the method disclosed in Patent Document 3, soundproofing material is laid on the deck floor without being fixed thereto, and floating floor panels of a specified size are stacked on top of it in an appropriate arrangement, the butt joints of the stacked floating floor panels are butted together and welded, and the surfaces are finished by uniformly covering them with resin mortar. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Utility Model Application Publication No. 1-106394 [Patent Document 2] Utility Model Registration No. 3216446 [Patent Document 3] Utility Model Registration No. 3194384 [Patent Document 4] JP 2017-105433 A Summary of the Invention [Problem to be solved by the invention]

[0007] However, if the floating floor panels are fixed to the framework with screws as in Patent Document 1, multiple screws are required for each panel, making the fixing work quite complicated. Also, when butting and fitting the butt joints of the floating floor panels together as in Patent Document 3, it is necessary to move one floating floor panel horizontally relative to the other floating floor panel, but since each floating floor panel weighs about 25 to 35 kg, it is not an easy task and it is difficult to butt the butt joints as intended. Therefore, there was a problem that construction took a long time.

[0008] One possible solution is to simply install the floating floor panels side by side in a horizontal direction without fitting them together. However, if the floating floor panels are not fitted together, a step will be created between the floating floor panels, and it will be necessary to install additional steel plates or the like on top of the floating floor panels to integrate the panels, which will cause problems in terms of material costs and construction time.

[0009] In addition, if the floating floor panels are fitted together loosely, the above-mentioned butting work can be made somewhat easier, but if the fit is loose, there is the problem that cracks will occur on the surface of the finishing material such as the deck composition.

[0010] The present invention has been made in consideration of these points, and its purpose is to facilitate the fitting operation of floating floor panels together while suppressing the relative movement of the floating floor panels after fitting, thereby making it less likely for cracks to occur on the surface of the finishing material. [Means for solving the problem]

[0011] In order to achieve the above object, a first aspect of the present disclosure can be based on a floating floor panel that is supported on a floor structure by a plurality of support legs and includes a metal plate that constitutes a floating floor on the floor structure. The metal plate is rectangular in a plan view. Of the four sides that constitute the peripheral portion of the metal plate, the first side has a first vertical plate portion that extends downward, a first horizontal plate portion that extends from a lower end of the first vertical plate portion toward the outside of the metal plate, and a first outer plate portion that extends upward from the outer end of the first horizontal plate portion to a position lower than the upper end of the first vertical plate portion. Furthermore, of the four sides that form the peripheral portion of the metal plate, the second side that faces the first side has a first abutting plate portion that abuts against the upper end of the first vertical plate portion of a metal plate of another floating floor panel installed adjacent to the metal plate and extends downward to reach the first horizontal plate portion of the other metal plate, and a first engaging plate portion that extends from the lower end of the first abutting plate portion to the first outer plate portion of the other metal plate.

[0012] According to this configuration, a floating floor is constructed on the floor structure by arranging a plurality of floating floor panels horizontally and supporting each of the floating floor panels on the floor structure by a plurality of support legs. In this case, when installing another floating floor panel adjacent to one floating floor panel, the first floating floor panel is installed first, and then the first abutment plate part of the other floating floor panel is abutted against the upper end of the first vertical plate part of the one floating floor panel, and the first fitting plate part of the other floating floor panel is inserted between the first vertical plate part and the first outer plate part of the one floating floor panel. In other words, when installing another floating floor panel, it is usually moved from the top to the bottom of the floor structure, but by utilizing this normal movement and the weight of the floating floor panel, the first side part of the one floating floor panel and the second side part of the other floating floor panel can be fitted together, so that the work is easier than when the floating floor panel is moved horizontally and fitted together by butting as in the conventional case.

[0013] Moreover, after fitting, the first abutment plate portion of the other floating floor panel abuts against the upper end of the first vertical plate portion of the first floating floor panel, and the first fitting plate portion of the other floating floor panel is disposed between the first vertical plate portion and the first outer plate portion, so that the relative displacement of both floating floor panels in the horizontal direction is suppressed. This makes it difficult for cracks to occur on the surface of the finishing material.

[0014] In addition, since the floating floor panels are fitted together vertically, the support legs can be shared at the fitting locations, making it possible to reduce the number of support legs.

[0015] In a second aspect of the present disclosure, the first side portion and the second side portion are long sides of the metal plate.

[0016] With this configuration, the long sides of one floating floor panel and another floating floor panel can be fitted together.

[0017] In a third aspect of the present disclosure, the first side portion and the second side portion are short sides of the metal plate.

[0018] With this configuration, the short sides of one floating floor panel and another floating floor panel can be fitted together.

[0019] In a fourth aspect of the present disclosure, the metal plate is made of any one of iron, stainless steel, and an aluminum alloy.

[0020] According to this configuration, when the floating floor of a ship is constructed using floating floor panels, by using any of iron, stainless steel, and aluminum alloy, it is possible to impart high fire resistance and increase safety.

[0021] In a fifth aspect of the present disclosure, the metal plate has a thickness of not less than 2.3 mm and not more than 6.0 mm.

[0022] According to this configuration, when constructing a floating floor for a ship using floating floor panels, by ensuring a thickness of 2.3 mm or more, it is possible to ensure sufficient rigidity of the floor to provide a good walking feel, and to impart high fire resistance to increase safety. Also, by making the thickness 6.0 mm or less, the weight of each floating floor panel is not so heavy, which improves workability during installation.

[0023] In a sixth aspect of the present disclosure, the metal plate has a weight of 20 kg or less.

[0024] This configuration improves workability when moving the floating floor panel during installation.

[0025] In a seventh aspect of the present disclosure, a method for installing floating floor panels can be assumed in which a plurality of floating floor panels each having a metal plate material constituting a floating floor are installed on a floor structure by a plurality of support legs. A first side of four sides constituting the peripheral portion of the metal plate material, which is rectangular in plan view, is provided with a first vertical plate portion extending downward, a first horizontal plate portion extending from a lower end of the first vertical plate portion toward the outside of the metal plate material, and a first outer plate portion extending upward from the outer end of the first horizontal plate portion to a position lower than the upper end of the first vertical plate portion. In addition, among the four sides constituting the peripheral portion of the metal plate, a second side facing the first side is provided with a first abutment plate portion that abuts against the upper end of the first vertical plate portion of the metal plate of another floating floor panel installed adjacent to the metal plate and extends downward to reach the first horizontal plate portion of the other metal plate, and a first fitting plate portion that extends from the lower end of the first abutment plate portion to the first outer plate portion of the other metal plate. Then, the floating floor panel is supported on the floor structure by the support legs. Next, the other floating floor panel is moved from above to below to abut the first abutment plate portion of the other floating floor panel against the upper end of the first vertical plate portion of the floating floor panel, and the first fitting plate portion of the other floating floor panel can be inserted between the first vertical plate portion and the first outer plate portion of the floating floor panel.

[0026] With this configuration, the floating floor panels can be easily fitted together and relative positional deviation after fitting can be suppressed.

[0027] In an eighth aspect of the present disclosure, after the floating floor panel is supported on the floor structure by the support legs, a screw shaft that is rotatably supported by the support legs and protrudes upward from the support legs is screwed into a screw hole provided in the metal plate and rotated through a through hole provided in the metal plate to perform level adjustment.

[0028] With this configuration, after the floating floor panel is installed, level adjustment can be easily performed by rotating the screw shaft of the support leg from above the metal plate material.

[0029] In a ninth aspect of the present disclosure, after the floating floor panel is supported on the floor structure by the support legs, adjacent metal plates are fixed to each other by spot welding.

[0030] According to this configuration, by spot welding adjacent metal plates together, relative movement can be reliably prevented. Effect of the Invention

[0031] As described above, the process of fitting floating floor panels together can be facilitated, while the relative movement of the floating floor panels after fitting can be suppressed, making it less likely for cracks to occur on the surface of the finishing material. [Brief description of the drawings]

[0032] [Figure 1] FIG. 2 is a plan view of a floating floor panel according to an embodiment of the present invention. [Diagram 2] 2 is a cross-sectional view taken along line II-II in FIG. [Diagram 3] 3 is a cross-sectional view taken along line III-III in FIG. [Figure 4] FIG. 2 is a plan view of the floating floor. [Diagram 5] FIG. 4 is an enlarged view of part A in FIG. [Figure 6] FIG. 4 is an enlarged view of part B in FIG. [Figure 7] FIG. [Figure 8] 7 is a cross-sectional view taken along line VII-VII in FIG. 4. [Figure 9A] This is a plan view showing the first floating floor panel in place. [Figure 9B] This is a plan view showing the second floating floor panel in place. [Figure 9C] This is a plan view showing the third floating floor panel in place. [Figure 9D] This is a plan view showing the fourth floating floor panel in place. [Figure 10]FIG. 13 is a side view of the end support leg. [Figure 11] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0033] Hereinafter, the embodiments of the present invention will be described in detail with reference to the drawings. Note that the following description of the preferred embodiments is merely illustrative in nature and is not intended to limit the present invention, its applications, or its uses.

[0034] 1 to 3 show a floating floor panel 1 according to an embodiment of the present invention. The floating floor panel 1 is a floor component member supported by a plurality of support legs 2 on a floor structure 100 (shown in Figs. 5 and 6) and including a metal plate material 10 constituting a floating floor F (shown in Fig. 4) on the floor structure 100. The floating floor F according to the present invention can be installed in, for example, a ship's cabin (living room, hospital room, etc.). In the case of a ship, the floor structure 100 is, for example, a ship's deck, etc. The floating floor F according to the present invention can also be installed in, for example, a house, etc. In the case of a house, the floor structure 100 is, for example, a concrete slab, etc. In the following explanation, a case where the floor structure 100 is a metal deck of a ship will be explained.

[0035] As shown in Fig. 4, the floating floor F is constructed by arranging multiple floating floor panels 1 vertically and horizontally in a horizontal direction. The metal plate material 10 constituting each floating floor panel 1 is rectangular in a plan view, and therefore the peripheral portion of the metal plate material 10 is formed by four sides 11-14, including a pair of long sides 11, 12 facing each other and a pair of short sides 13, 14 facing each other. The rectangular area surrounded by the four sides 11-14 of the metal plate material 10 is the main body portion 15. The main body portion 15 is a portion that is installed so as to be horizontal.

[0036] Of the pair of long sides 11 and 12, the long side 11 located at the top of FIG. 1 is called the first side, and the long side 12 located at the bottom of FIG. 1 is called the second side. Also, of the pair of short sides 13 and 14, the short side 13 located at the right of FIG. 1 is called the third side, and the short side 14 located at the left of FIG. 1 is called the fourth side. This is only a definition for convenience of explanation, and of the pair of short sides 13 and 14, the short side 13 located at the right of FIG. 1 may be called the first side, and the short side 14 located at the left of FIG. 1 may be called the second side, or, of the pair of long sides 11 and 12, the long side 11 located at the top of FIG. 1 may be called the third side, and the long side 12 located at the bottom of FIG. 1 may be called the fourth side. Also, in each figure, the metal plate 10 is a horizontally long rectangle, but this is not limited to this, and it may be a vertically long rectangle.

[0037] Since the metal plate 10 is rectangular, the first side 11 and the third side 13 form a right angle, and the first side 11 and the fourth side 14 form a right angle. The second side 12 and the third side 13 form a right angle, and the second side 12 and the fourth side 14 form a right angle. The first side 11 and the second side 12 are parallel to each other, and the third side 13 and the fourth side 14 are parallel to each other.

[0038] The material of the metal plate 10 is any one of iron, stainless steel, and aluminum alloy. This can increase the strength of the floating floor panel 1 and provide the floating floor panel 1 with high fire resistance. When the material of the metal plate 10 is iron, it is possible to use anti-corrosive and corrosion-resistant galvanized steel plate or Galvalume steel plate (registered trademark), or to use a plate material in which the corrosion resistance of iron is improved by applying an anti-rust coating or the like. For example, an electro-galvanized steel plate or the like can be used as the metal plate 10.

[0039] The thickness of the metal plate material 10 is set in the range of 2.3 mm or more and 6.0 mm or less. By ensuring that the thickness of the metal plate material 10 is 2.3 mm or more, the deflection of the floor after the floating floor F is constructed can be made to be a predetermined value or less, and high sound insulation can be ensured. In other words, if the thickness of the metal plate material 10 is less than 2.3 mm, the deflection of the floor increases, for example, when loading or walking, and the sound insulation decreases, which is not preferable. In addition, by setting the thickness of the metal plate material 10 to 6.0 mm or less, the weight of the floating floor panel 1 can be made to be a predetermined weight or less, which improves the workability when transporting it within the ship and the workability when transporting it to the installation position within the ship's cabin, and is preferable in terms of workability. In other words, if the thickness of the metal plate material 10 exceeds 6.0 mm, the thickness of the floating floor panel 1 becomes unnecessarily thick and the weight of the floating floor panel 1 becomes heavy, which is not preferable in terms of workability. By setting the lower limit of the thickness of the metal plate 10 to 3.2 mm or more, the deflection of the floor can be suppressed and the sound insulation can be further improved. Also, by setting the upper limit of the thickness of the metal plate 10 to 4.5 mm or less, the workability can be further improved.

[0040] The length of the first side 11 and the second side 12 of the metal plate 10 can be set, for example, in the range of 600 mm or more and 1800 mm or less. The length of the third side 13 and the fourth side 14 of the metal plate 10 can be set, for example, in the range of 300 mm or more and 900 mm or less. The weight of the metal plate 10 varies depending on the length of each side 11-14 of the metal plate 10, the thickness of the metal plate 10, and the material of the metal plate 10. In this embodiment, the length and thickness of each side 11-14 are set and the material is selected so that the weight of one metal plate 10 is 20 kg or less or 18 kg or less. As an example, if the length of the first side portion 11 and the second side portion 12 of the metal plate material 10 is 900 mm, the length of the third side portion 13 and the fourth side portion 14 of the metal plate material 10 is 450 mm, the thickness of the metal plate material 10 is 3.2 mm, and the metal plate material 10 is an electro-galvanized steel plate, the weight of one metal plate material 10 will be 15 kg or less (for example, approximately 14 kg), resulting in good workability.

[0041] When adjacent floating floor panels 1 are fitted together, they are fitted together by moving the floating floor panels 1 from above to below, rather than moving them horizontally. Adjacent floating floor panels 1 are fitted together by fitting one floating floor panel 1 with another floating floor panel 1 adjacent to the one floating floor panel 1. The fitting structure between adjacent floating floor panels 1 will be specifically described below.

[0042] 1 to 3 show one of the adjacent floating floor panels 1, and Figs. 5 and 6 are partial enlarged views of this one floating floor panel 1. As shown in Fig. 5, the first side portion 11 of the metal plate material 10 of one floating floor panel 1 has a first vertical plate portion 11a, a first horizontal plate portion 11b, and a first outer plate portion 11c. The first vertical plate portion 11a, the first horizontal plate portion 11b, and the first outer plate portion 11c are integrally formed with the main body portion 15, and the first vertical plate portion 11a, the first horizontal plate portion 11b, and the first outer plate portion 11c can be formed, for example, by a press molding method. In addition, the first vertical plate portion 11a, the first horizontal plate portion 11b, and the first outer plate portion 11c may be formed of a separate member from the main body portion 15. When they are separate members, the first vertical plate portion 11a, the first horizontal plate portion 11b, and the first outer plate portion 11c are molded, and then joined to the main body portion 15 to be integrated. The first vertical plate portion 11a, the first horizontal plate portion 11b, and the first outer plate portion 11c form a long groove that opens upward and extends in the direction in which the first side portion 11 extends. By providing the first vertical plate portion 11a, the first horizontal plate portion 11b, and the first outer plate portion 11c on the edge portion of the flat main body portion 15, the first vertical plate portion 11a, the first horizontal plate portion 11b, and the first outer plate portion 11c function like ribs, so that the bending of the floating floor panel 1 is suppressed and the walking feeling is improved. Note that the outside refers to the outside of the floating floor panel 1 in the horizontal direction, and the inside refers to the inside of the floating floor panel 1 in the horizontal direction.

[0043] The first vertical plate portion 11a extends downward from the main body portion 15, continues in the direction in which the first side portion 11 extends, and is perpendicular to the main body portion 15. The lower end of the first vertical plate portion 11a is disposed above the floor structure 100 and is arranged away from the floor structure 100 so as not to contact the upper surface of the floor structure 100. The first horizontal plate portion 11b extends from the lower end of the first vertical plate portion 11a toward the outside of the metal plate material 10 and continues in the direction in which the first side portion 11 extends. The first horizontal plate portion 11b is parallel to the main body portion 15 and is horizontal in this embodiment, but may be inclined. When inclined, it may be inclined so that the tip of the first horizontal plate portion 11b is located lower, or it may be inclined so that the tip of the first horizontal plate portion 11b is located higher.

[0044] The first outer plate portion 11c extends upward from the outer end of the first horizontal plate portion 11b to a position lower than the upper end of the first vertical plate portion 11a, and is continuous with the direction in which the first side portion 11 extends. Therefore, the vertical dimension of the first outer plate portion 11c is set to be shorter than the vertical dimension of the first vertical plate portion 11a. In this embodiment, the first outer plate portion 11c and the first vertical plate portion 11a are parallel to each other, but the first outer plate portion 11c may be inclined with respect to the vertical plane so that the first outer plate portion 11c is farther from the first vertical plate portion 11a as it approaches the upper end of the first outer plate portion 11c.

[0045] The dimension C1 from the top surface of the main body 15 to the top surface of the first horizontal plate 11b can be set in the range of 15 mm to 50 mm. By ensuring that the dimension C1 is 15 mm or more, it is possible to ensure secure positioning when mated as described below. Furthermore, by setting the dimension C1 to 50 mm or less, it is possible to avoid interference with the top surface of the floor structure 100. In this embodiment, the dimension C1 is set in the range of 20 mm to 30 mm, specifically, about 25 mm.

[0046] The dimension C2 from the outer surface of the first vertical plate portion 11a to the outer surface of the first outer plate portion 11c can be set in the range of 15 mm to 50 mm. By ensuring that the dimension C2 is 15 mm or more, it is possible to ensure proper positioning when mated, as described below. Furthermore, by setting the dimension C2 to 50 mm or less, it is possible to prevent the mating portion from becoming unnecessarily large. In this embodiment, the dimension C2 is set in the range of 15 mm to 25 mm, specifically, about 20 mm.

[0047] The dimension C3 from the lower surface of the first horizontal plate portion 11b to the upper end of the first outer plate portion 11c can be set in the range of 15 mm to 50 mm. By ensuring that the dimension C3 is 15 mm or more, it is possible to firmly position the panels when they are fitted together as described below. Furthermore, by setting the dimension C3 to 50 mm or less, it is possible to avoid interference with the main body portion 15 of the adjacent floating floor panel 1. In this embodiment, the dimension C3 is set in the range of 15 mm to 25 mm, specifically, 18.2 mm.

[0048] As shown in FIG. 6, the second side portion 12 of the metal plate material 10 of one floating floor panel 1 has a first abutment plate portion 12a and a first fitting plate portion 12b. The first abutment plate portion 12a and the first fitting plate portion 12b may be integrally molded with the main body portion 15 by press molding or the like, or may be composed of a separate member from the main body portion 15. The first abutment plate portion 12a, the first fitting plate portion 12b, and the main body portion 15 form a groove that is open inward and long in the direction in which the second side portion 12 extends. By providing the first abutment plate portion 12a and the first fitting plate portion 12b, the first abutment plate portion 12a and the first fitting plate portion 12b also function like ribs, so that the deflection of the floating floor panel 1 is suppressed.

[0049] As shown in Fig. 8, the first abutment plate portion 12a is capable of abutting against the upper end of the first vertical plate portion 11a of the metal plate material 10 of another floating floor panel 1 installed adjacent to the metal plate material 10, and extends downward from the portion abutting against the upper end of the first vertical plate portion 11a until it reaches the first horizontal plate portion 11b of the other metal plate material 10. The first abutment plate portion 12a is continuous in the direction in which the second side portion 12 extends, and is perpendicular to the main body portion 15. Therefore, the first vertical plate portion 11a and the first abutment plate portion 12a are parallel to each other.

[0050] The first fitting plate portion 12b is formed so as to extend inward from the lower end of the first abutting plate portion 12a to the first outer plate portion 11c of the other metal plate material 10. The first fitting plate portion 12b is continuous with the direction in which the second side portion 12 extends, and is parallel to the main body portion 15 and perpendicular to the first abutting plate portion 12a. Therefore, the first fitting plate portion 12b and the first horizontal plate portion 11b are parallel to each other.

[0051] As shown in Fig. 6, the dimension C4 from the upper surface of the main body 15 to the lower end of the first contact plate 12a can be set in the range of 15 mm to 50 mm. By ensuring that the dimension C4 is 15 mm or more, it is possible to ensure secure positioning when mated, as described below. Furthermore, by setting the dimension C4 to 50 mm or less, it is possible to avoid interference with the upper surface of the floor structure 100. In this embodiment, the dimension C4 is set in the range of 20 mm to 30 mm, specifically, about 25 mm.

[0052] A dimension C5 from the outer surface of the first abutment plate portion 12a to the tip of the first fitting plate portion 12b can be set in the range of 10 mm to 50 mm. By ensuring that the dimension C5 is 15 mm or more, it is possible to ensure proper positioning when fitting, as described below. Furthermore, by setting the dimension C5 to 50 mm or less, it is possible to prevent the fitting portion from becoming unnecessarily large. In this embodiment, the dimension C5 is set in the range of 10 mm to 20 mm, specifically, about 15 mm.

[0053] As shown in Fig. 8, it is possible to fit the first vertical plate portion 11a, the first horizontal plate portion 11b, and the first outer plate portion 11c of the first side portion 11 of one floating floor panel 1 with the first abutting plate portion 12a and the first fitting plate portion 12b of the second side portion 12 of another floating floor panel 1. In the fitted state, the height of the main body portion 15 of one floating floor panel 1 and the main body portion 15 of the other floating floor panel 1 are the same, and the dimensions, shapes, and relative positions of the first vertical plate portion 11a, the first horizontal plate portion 11b, the first outer plate portion 11c, the first abutting plate portion 12a, and the first fitting plate portion 12b are set so that no step is formed between these main body portions 15, 15.

[0054] In addition, in the state where one floating floor panel 1 and another floating floor panel 1 are fitted together, during work before the two floating floor panels 1 are fully fixed, for example, an external force may act to move the one floating floor panel 1 horizontally relative to the other floating floor panel 1. In this case, the dimensions, shapes, and relative positions of the first vertical plate portion 11a, the first horizontal plate portion 11b, the first outer plate portion 11c, the first abutting plate portion 12a, and the first fitting plate portion 12b are set so that the one floating floor panel 1 does not easily move relative to the other floating floor panel 1. In other words, when the first vertical plate portion 11a, the first horizontal plate portion 11b, and the first outer plate portion 11c are fitted into the first abutting plate portion 12a and the first fitting plate portion 12b, the one floating floor panel 1 is firmly fitted together so that it does not move horizontally away from the other floating floor panel 1, and both floating floor panels 1 can be integrated.

[0055] In addition, in the fitted state between one floating floor panel 1 and another floating floor panel 1, the first vertical plate portion 11a of the one floating floor panel 1 and the first abutting plate portion 12a of the other floating floor panel 1 are in contact with each other, so that the leakage of noise from below to above and from above to below the floating floor panel 1 is suppressed. Furthermore, in the above-mentioned fitted state, the first horizontal plate portion 11b of the one floating floor panel 1 and the first fitting plate portion 12b of the other floating floor panel 1 are in contact with each other in the vertical direction, so that the leakage of noise from below to above and from above to below the floating floor panel 1 is also suppressed. In other words, according to the fitting structure of this embodiment, the effect of blocking sound propagating through the air can be improved.

[0056] 1 and 2, the third side portion 13 is provided with a second vertical plate portion 13a, a second horizontal plate portion 13b, and a second outer plate portion 13c configured similarly to the first vertical plate portion 11a, the first horizontal plate portion 11b, and the first outer plate portion 11c of the first side portion 11. The fourth side portion 14 is provided with a second abutting plate portion 14a and a second fitting plate portion 14b configured similarly to the first abutting plate portion 12a and the first fitting plate portion 12b of the second side portion 12. Therefore, it is possible to fit the second vertical plate portion 13a, the second horizontal plate portion 13b, and the second outer plate portion 13c of the third side portion 13 of one floating floor panel 1 with the second abutting plate portion 14a and the second fitting plate portion 14b of the fourth side portion 14 of another floating floor panel 1.

[0057] As shown in Figures 4 and 8, the metal plate material 10 of one floating floor panel 1 and the metal plate material 10 of another floating floor panel 1 are fixed by spot welding. The spot weld is indicated by the symbol W. The spot weld W can be provided by a known welding device after the floating floor panels 1 are fitted together. The spot weld W may be provided in one location or in multiple locations. When providing the spot weld W in multiple locations, the spot welds W may be provided at intervals of, for example, 200 mm or more and 500 mm or less.

[0058] (Support leg) The floating floor panel 1 configured as above is supported on the floor structure 100 by the support legs 2. FIG. 7 shows an example of the structure of the support legs 2. The support legs 2 are provided with a rubber lower member 20, a metal plate-shaped member 21 fixed to the upper end of the lower member 20, and a screw shaft 22 attached to the plate-shaped member 21. The height of the floating floor panel 1 from the floor structure 100 can be set by the height of the support legs 2. In this embodiment, the height of the support legs 2 is set so that the height of the floating floor panel 1 from the floor structure 100 is in the range of 30 mm to 500 mm. By setting the height of the floating floor panel 1 from the floor structure 100 to 30 mm or more, it is possible to absorb unevenness in the floor structure 100 and install multiple floating floor panels 1 horizontally. In addition, when installing electrical wiring or piping under the floating floor panel 1, the height of the floating floor panel 1 from the floor structure 100 can be set to a range of up to 500 mm.

[0059] The lower member 20 is formed into a hollow shape with a larger diameter going downward, and is made of, for example, a rubber material with high vibration-proofing properties. The lower end of the lower member 20 is the part that abuts against the upper surface of the floor structure 100. The plate-like member 21 is circular in a plan view, and a circular support hole 21a that rotatably supports the screw shaft 22 is formed in the center.

[0060] The screw shaft 22 is supported in a state in which it is inserted into the support hole 21a of the plate-shaped member 21 in a posture extending in the vertical direction. The upper part of the screw shaft 22 protrudes upward from the upper surface of the plate-shaped member 21. The upper end surface of the screw shaft 22 is provided with a tool engagement portion 22a with which a tool (not shown) engages. The tool engagement portion 22a has a shape according to the shape of the tool. For example, if the tool is a flat head screwdriver, it has a flat head recess, if the tool is a Phillips head screwdriver, it has a Phillips head recess, and if the tool is a hexagonal wrench, it has a regular hexagonal recess in a plan view. By engaging the tool with the tool engagement portion 22a, it becomes possible to rotate the screw shaft 22.

[0061] The structure of the support leg 2 is not limited to the above-mentioned structure, and may be made of only metal members or only resin members without providing rubber members. Also, the support leg 2 may be simply placed on the upper surface of the floor structure 100, may be bonded to the upper surface of the floor structure 100 with an adhesive, or may be fixed to the upper surface of the floor structure 100 by welding.

[0062] As shown in FIG. 1, one metal plate 10 is supported by a plurality of support legs 2, and in this embodiment, five support legs 2 support one metal plate 10. That is, through holes 10a are formed near the four corners and in the center of the metal plate 10. As shown in FIG. 5 and FIG. 6, a cylindrical member 10b protruding downward from the metal plate 10 is disposed inside each through hole 10a. The cylindrical member 10b is fixed to the metal plate 10 by crimping from both sides in the thickness direction, but may be fixed by welding, for example. The number of support legs 2 is not limited to five, and may be four or less, or six or more.

[0063] Both upper and lower ends of the cylindrical member 10b are open. Inside the cylindrical member 10b, a screw hole 10c extending in the vertical direction is formed. The screw shaft 22 of the support leg 2 is screwed into the screw hole 10c from below. This closes the through hole 10a. With the screw shaft 22 screwed into the screw hole 10c, the support leg 2 is joined to the metal plate material 10. The level can be adjusted by rotating the screw shaft 22 through the through hole 10a provided in the metal plate material 10 while the screw shaft 22 is screwed into the screw hole 10c provided in the metal plate material 10. For example, after the floating floor panel 1 is installed, a tool is inserted through the through hole 10a of the metal plate material 10 and engaged with the tool engagement portion 22a of the screw shaft 22 to rotate the screw shaft 22, thereby changing the height of the cylindrical member 10b relative to the screw shaft 22. The cylindrical member 10b can be raised or lowered depending on the direction of rotation of the screw shaft 22. The cylindrical member 10b may be, for example, a nut.

[0064] In this way, the floating floor panel 1 is partially supported by the support legs 2, so it can be made lighter and easier to install than a structure that supports the entire floor panel. In addition, when the entire floor panel supports the panel, it is difficult to adjust the level, but by using a structure that supports the panel partially by the support legs 2 as in this embodiment, it becomes easier to adjust the level.

[0065] (Airborne sound insulation performance) A floating floor F as shown in FIG. 4 can be constructed using the floating floor panel 1 and support legs 2 according to this embodiment. The airborne sound insulation performance of this floating floor F will be described. The airborne sound insulation performance test was conducted by the General Building Research Corporation of Japan. As test conditions, the floor structure 100 was assumed to be a ship floor and was a 6 mm thick steel plate. The floating floor panel 1 was a 3.2 mm thick SECC steel plate (electrolytic galvanized steel plate) and was supported on the floor structure 100 using the support legs 2. The height of the floating floor panel 1 from the floor structure 100 was 50 mm. Under these conditions, the measurement result of the weighted sound transmission loss was Rw-47.

[0066] Generally, in order to achieve a weighted sound transmission loss measurement result that exceeds Rw-45, it is necessary to construct a floating floor panel by stacking several layers of material, but in this embodiment, it was possible to achieve performance that exceeds Rw-45 with a single-layer floating floor panel 1 that is 3.2 mm thick.

[0067] (How to install floating floor panels) Next, a method of installing the floating floor panel 1 will be described. FIG. 4 shows a state where a plurality of floating floor panels 1 are installed on a floor structure 100 of a cabin of a ship using a plurality of support legs 2. When constructing a floating floor structure as shown in FIG. 4, as shown in FIG. 9A, a first floating floor panel 1A is supported by five support legs 2A on the floor structure 100 at the corner of the cabin. Then, as shown in FIG. 9B, a second floating floor panel 1B is placed. Using FIG. 8 as an example, the first floating floor panel 1A corresponds to the left panel in FIG. 8, and the second floating floor panel 1B corresponds to the right panel in FIG. 8. Therefore, the first side 11 of the first floating floor panel 1A and the second side 12 of the second floating floor panel 1B are fitted together. In this fitted state, the load near the second side 12 of the second floating floor panel 1B can be received by the first side 11 of the first floating floor panel 1A, so that the support legs 2A supporting the vicinity of the first side 11 of the first floating floor panel 1A can support the vicinity of the second side 12 of the second floating floor panel 1B, as shown in Fig. 9B. This means that only three support legs 2B are needed to directly support the second floating floor panel 1B, which allows for cost and weight reduction.

[0068] Next, as shown in FIG. 9C, the third floating floor panel 1C is placed. In this case, the third side 13 of the first floating floor panel 1A and the fourth side 14 of the third floating floor panel 1C are fitted together. In this fitted state, the load near the fourth side 14 of the third floating floor panel 1C can be received by the third side 13 of the first floating floor panel 1A, so that the support leg 2A supporting the vicinity of the third side 13 of the first floating floor panel 1A can support the vicinity of the fourth side 14 of the third floating floor panel 1C. As a result, the number of support legs 2C that directly support the third floating floor panel 1C is only three, which can reduce costs and weight.

[0069] Then, as shown in FIG. 9D, the fourth floating floor panel 1D is placed. In this case, the first side 11 of the third floating floor panel 1C and the second side 12 of the fourth floating floor panel 1D are fitted together. In this fitted state, the load near the second side 12 of the fourth floating floor panel 1D can be received by the first side 11 of the third floating floor panel 1C, so that the support leg 2C supporting the vicinity of the first side 11 of the third floating floor panel 1C and the support leg 2A supporting the vicinity of the first side 11 of the first floating floor panel 1A can support the vicinity of the second side 12 of the fourth floating floor panel 1D.

[0070] In addition, the third side 13 of the second floating floor panel 1B and the fourth side 14 of the fourth floating floor panel 1D are fitted together. In this fitted state, the load near the fourth side 14 of the fourth floating floor panel 1D can be received by the third side 13 of the second floating floor panel 1B, so that the support leg 2B supporting the vicinity of the third side 13 of the second floating floor panel 1B and the support leg 2A supporting the vicinity of the first side 11 of the first floating floor panel 1A can support the vicinity of the fourth side 14 of the fourth floating floor panel 1D. As a result, only two support legs 2D are required to directly support the fourth floating floor panel 1D, which can reduce costs and weight.

[0071] In this manner, the fifth, sixth, ... floating floor panels 1 are installed. In the above example, the second floating floor panel 1B, the third floating floor panel 1C, and the fourth floating floor panel 1D can have fewer support legs 2 than the first floating floor panel 1A, so the second floating floor panel 1B, the third floating floor panel 1C, and the fourth floating floor panel 1D have through holes 10a that remain open. If the through holes 10a remain open, when a deck composition (resin mortar) that serves as a floor finishing material is applied on the floating floor panel 1 in a later process, the deck composition may flow down from the through holes 10a. In response to this, as shown in FIG. 8, the through holes 10a to which the support legs 2 are not attached are blocked by screwing the hole filling bolts 30 into the screw holes 10c from below. Instead of the hole filling bolts 30, the through holes 10a may be blocked using a blocking member such as aluminum tape (not shown). Moreover, by closing the through holes 10a, it is possible to suppress the transmission of noise.

[0072] In the above example, the first to fourth floating floor panels 1A to 1D are all the same, but since the number of support legs 2 can be reduced in the second to fourth floating floor panels 1B to 1D, it is possible to prepare floating floor panels 1B to 1D in advance with a number of through holes 10a corresponding to the number of support legs 2. This eliminates the need for the above-mentioned treatment using the blocking member.

[0073] When installing the floating floor panel 1, it is preferable to avoid contact between the steel wall of the ship's hull and the floating floor panel 1 in order to prevent vibrations from being transmitted from the steel wall to the floating floor panel 1. By inserting a non-flammable fiber-based cushioning material 31 (shown in Figure 4), such as rock wool or glass wool, between the steel wall of the ship's hull and the peripheral edge of the floating floor panel 1, the transmission of vibrations from the steel wall can be suppressed.

[0074] The floating floor panel 1 and the steel wall of the hull are separated by a distance of, for example, 5 mm to 50 mm, and a fiber-based cushioning material 31 can be inserted into this gap. It is preferable that the fiber-based cushioning material 31 is compressed and placed in a high-density state before being inserted into the gap. This makes it difficult for noise to leak out. For example, a fiber-based cushioning material with a thickness of 25 mm and a density of 100 kg / m 3 The rock wool can be placed as a fiber-based cushioning material 31 between the floating floor panel 1 and the steel wall of the hull.

[0075] As shown in FIG. 4, depending on the floor area of ​​the cabin, only some of the floating floor panels 1 are made shorter in length or narrower in width than the other floating floor panels 1. This allows installation in cabins of various floor areas. The length and width of the floating floor panel 1 can be changed by cutting the floating floor panel 1, but there may be cases where the screw holes 10c for mounting the support legs 2 are lost. In this case, an auxiliary support leg 200 as shown in FIG. 10 is attached to the lower surface of the floating floor panel 1 on the steel wall side. The auxiliary support leg 200 has a lower member 201, a plate-like member 202, and a screw shaft 203 configured in the same manner as the support leg 2, and also has a support plate 204. The support plate 204 is circular as shown in FIG. 11, and is fixed to the lower surface of the floating floor panel 1 on the steel wall side by, for example, spot welding. A through hole 204a is formed in the center of the support plate 204. A cylindrical member 205 protruding downward is arranged inside the through hole 204a. The cylindrical member 205 is fixed to the support plate 204 by crimping or welding.

[0076] Both the upper and lower ends of the cylindrical member 205 are open. A screw hole 205a extending in the vertical direction is formed inside the cylindrical member 205. A screw shaft 203 is screwed into the screw hole 205a from below. By providing the auxiliary support leg 200, deflection of the floating floor panel 1 can be suppressed.

[0077] After all of the floating floor panels 1 in the cabin are supported on the floor structure 100 by the support legs 2, the above level adjustment is performed. That is, a level (e.g., a laser displacement meter, etc.) is used to measure whether the supported floating floor panels 1 are horizontal, and the level adjustment is performed by rotating the screw shafts 22 (screw shafts 203) of each support leg 2 (including the auxiliary support legs 200) with a tool so that all of the floating floor panels 1 are horizontal.

[0078] After the level adjustment, as shown in Fig. 8, the metal plates 10 of adjacent floating floor panels 1 are spot welded to each other to form spot welds W. The spot welds W are also shown in Fig. 4.

[0079] After that, the floor finishing process is performed using a deck composition, but before that, a process of fixing the level-adjusted screw shaft 22 (screw shaft 203) is performed. For example, a process of fixing the screw shaft 22 to the cylindrical member 10b by spot welding or adhesive, and a process of fixing the screw shaft 203 to the cylindrical member 205 by spot welding or adhesive are performed. This prevents the screw shaft 22 (screw shaft 203) from rotating due to long-term use, and makes it possible to suppress changes in level.

[0080] (Effects of the embodiment) As described above, according to this embodiment, a floating floor F can be constructed on the floor structure 100 by arranging multiple floating floor panels 1 in the horizontal direction and supporting each of the floating floor panels 1 on the floor structure 100 by multiple support legs 2. Specifically, as shown in Fig. 8, the first abutment plate portion 12a of the right floating floor panel 1 can be abutted against the upper end portion of the first vertical plate portion 11a of the left floating floor panel 1, and the first fitting plate portion 12b of the right floating floor panel 1 can be inserted and fitted between the first vertical plate portion 11a and the first outer plate portion 11c of the left floating floor panel 1.

[0081] In other words, when installing the floating floor panel 1 on the right side of Figure 8 later, it is normal to move it from the top to the bottom of the floor structure 100. By utilizing this normal movement and the weight of the floating floor panel 1, the first edge 11 of the floating floor panel 1 on the left side and the second edge 12 of the floating floor panel 1 on the right side can be fitted together, making the work easier than when the floating floor panels are moved horizontally and fitted together by butting them together as in the conventional method.

[0082] Moreover, after fitting, the first abutment plate portion 12a of the right floating floor panel 1 comes into contact with the upper end of the first vertical plate portion 11a of the left floating floor panel 1, and the first fitting plate portion 12b is disposed between the first vertical plate portion 11a and the first outer plate portion 11c, suppressing the relative horizontal displacement of both floating floor panels 1, 1. This makes it difficult for cracks to occur on the surface of the finishing material made of the deck composition.

[0083] In addition, since the floating floor panels 1, 1 are fitted together vertically, the support legs 2 can be shared at the fitting locations, and the number of support legs 2 can be reduced.

[0084] The above-described embodiment is merely illustrative in all respects and should not be interpreted as being restrictive. Furthermore, all modifications and changes within the scope of the claims are within the scope of the present invention. For example, the present embodiment can be applied to rooms of various residences in addition to rooms of ships. [Industrial Applicability]

[0085] As described above, the floating floor panel and the method for installing the floating floor panel according to the present invention can be applied to, for example, a cabin of a ship. [Explanation of symbols]

[0086] 1 Floating Floor Panels 2 Support legs 10 Metal plate material 11 First Side 11a 1st vertical plate part 11b 1st horizontal plate part 11c 1st outer panel section 12 Second Side 12a 1st contact plate part 12b 1st mating plate part 13 The Third Edge 14 The Fourth Edge 100 floor structure F Floating Floor

Claims

1. A floating floor panel is supported on a floor structure by a plurality of support legs and has metal plates that constitute a floating floor on the floor structure, The metal plate is rectangular in plan view, Of the four sides constituting the peripheral portion of the metal plate, a first side has a first vertical plate portion extending downward, a first horizontal plate portion extending from a lower end of the first vertical plate portion toward the outside of the metal plate, and a first outer plate portion extending upward from the outer end of the first horizontal plate portion to a position lower than the upper end of the first vertical plate portion, Of the four sides constituting the peripheral portion of the metal plate, the second side facing the first side has a first abutment plate portion that abuts against the upper end of the first vertical plate portion of a metal plate of another floating floor panel installed adjacent to the metal plate and extends downward to reach the first horizontal plate portion of the other metal plate, and a first fitting plate portion that extends from the lower end of the first abutment plate portion to the first outer plate portion of the other metal plate, the first abutment plate portion of the metal plate abuts against the first vertical plate portion of the other metal plate in a horizontal direction, A floating floor panel in which the first engaging plate portion of the metal plate abuts against the first horizontal plate portion of the other metal plate from above.

2. 2. The floating floor panel according to claim 1, A floating floor panel, wherein the first side portion and the second side portion are long side portions of the metal plate material.

3. 2. The floating floor panel according to claim 1, A floating floor panel, wherein the first side and the second side are short sides of the metal plate.

4. A floating floor panel according to any one of claims 1 to 3, The material of the metal plate is any one of iron, stainless steel, and aluminum alloy.

5. A floating floor panel according to any one of claims 1 to 4, The thickness of the metal plate material is 2.3 mm or more and 6.0 mm or less.

6. A floating floor panel according to any one of claims 1 to 5, The floating floor panel has a weight of 20 kg or less.

Images