JP2008267035A - Shock absorber for floor, floor structure and installation method for reinforcing floor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shock absorber for a floor, a floor structure and a method for installing a reinforcing floor using the floor shock absorber, which facilitates an easy reinforcement with a simple construction. <P>SOLUTION: A shock absorber for a floor 20 has a shock absorption body 22 and a reinforcing member 30. The shock absorber 22 includes an upper face part 23 placed on a lower surface of a finishing material 14, a lower face part 25 placed on an upper surface of a floor base material 12 and an elastic part 24 connecting the upper face part 23 and the lower face part 25. The reinforcing member 30 has a cross section of a rectangular prism shape and is arranged in an open cushion space 27. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a floor cushion disposed between a finishing material and a floor base, a floor structure using the floor cushion, and a reinforcing floor laying method using the floor cushion. .

  For floor structures in school buildings, condominiums, and the like, for example, a directly attached floor in which a finishing material such as a wood system is applied to a concrete floor base via an adhesive is used. Usually, a cushioning body made of foam or the like is bonded to the bottom of the finishing material so as to follow the unevenness of the concrete floor substrate.

  However, if the cushioning body such as the foam is too thin, the followability with respect to unevenness is deteriorated, and a problem occurs in the shock absorption relaxation property. In addition, problems such as footsteps transmitted downstairs and poor walking feeling also occur. On the other hand, if the buffer is too thick, there is a problem that warping occurs due to the influence of moisture in the case of a wood-based finishing material. In addition, there are cases in which problems such as the occurrence of cracks may occur even with finishing materials other than wood.

Patent Documents 1 and 2 disclose a floor cushion and a floor structure using the floor cushion that can avoid such problems as warping of wood-based materials against moisture while achieving such conflicting requirements and absorbing and mitigating shock. Already provided by.
JP 2003-268960 A JP 2004-068380 A

  In the case of using such a floor cushion, it may be necessary to reinforce the end of the floor surface or a loaded part of a heavy object in order to increase the strength.

  The present invention has been made in response to the above request, and has a simple structure and a floor cushion that can be easily reinforced, a floor structure, and a reinforced floor laying using the floor cushion. A method is provided.

  The invention according to claim 1 is a floor cushion disposed between a floor base and a finishing material, the sheet-like top surface portion disposed on the bottom surface of the finishing material, and the top surface of the floor base A lower surface portion disposed on the upper surface portion and the upper surface portion and the lower surface portion, and an elastic portion constituting a plurality of rows of buffer spaces parallel to each other along the surface direction between the upper surface portion and the lower surface portion And a reinforcing member that is disposed along at least part of the buffer space along the buffer space and reinforces the strength in the vertical direction.

  When an impact is transmitted to the floor cushion via the finishing material, the impact is received by the upper surface portion, and the elastic portion is deformed. A relatively small impact is absorbed thereby. When a strong impact that cannot be absorbed by the partition wall is applied, the buffer space is crushed and the impact is absorbed. Thus, the floor cushion of the present invention absorbs the impact in the vertical direction.

  In addition, the floor cushion according to the present invention has an upper surface portion, a lower surface portion, and an elastic portion arranged along the surface direction, so that an elastic material such as rubber, a thermoplastic elastomer, or a soft plastic material is extruded. Can be manufactured integrally.

  Therefore, the productivity of the floor cushion can be improved by increasing the extrusion speed of the elastic material.

  Further, when the floor cushioning material is manufactured by extrusion molding, the cross-sectional shape is determined by the shape of the opening of the die, so that even a complicated cross-sectional shape can be easily manufactured.

  Further, since the reinforcing member is disposed along the buffer space, it is not necessary to cut out part of the upper surface portion, the elastic portion, and the lower surface portion to install the reinforcing member, and the necessary portion can be easily reinforced.

  The floor cushion according to a second aspect of the present invention is such that the lower surface portion is in a strip shape and is arranged in parallel so as to be separated from each other by a predetermined distance, and the buffer space includes the upper surface portion, the elastic portion, and the lower surface. A tunnel-shaped closed buffer space surrounded by the portion, and an open buffer space formed between the adjacent closed buffer spaces.

  In this manner, the closed buffer space and the open buffer space can be configured by forming the lower surface portion into a discontinuous band shape.

  The floor cushion according to a third aspect of the present invention is characterized in that the lower surface portion is formed into a sheet shape disposed to face the upper surface portion.

  In this way, by configuring the lower surface portion, the buffer space can be configured by partitioning the space between the upper surface portion and the lower surface portion by the elastic portion.

  The floor cushion according to a fourth aspect of the present invention is characterized in that the reinforcing member is disposed over the entire length in the longitudinal direction of the buffer space.

  Thus, by arranging the reinforcing member over the entire length in the longitudinal direction of the buffer space, a stable buffer effect in the same direction can be obtained.

  The floor cushion according to a fifth aspect of the present invention is characterized in that a plurality of the reinforcing members are arranged at an end in a longitudinal direction of the buffer space.

  When the reinforcing member is disposed on the end side of the finishing material, the longitudinal direction of the buffer space may not match the end side direction of the finishing material. In this case, as described above, by arranging a plurality of end portions in the longitudinal direction of the buffer space, the end side portions of the finishing material can be stably reinforced.

  A floor structure according to a sixth aspect of the present invention includes a floor foundation, the floor cushion according to any one of claims 1 to 4 stacked on the floor foundation, and the floor cushion. And a finishing material laminated on the body.

  Since the floor structure includes the floor cushion according to any one of claims 1 to 4, the floor structure can be easily reinforced and configured.

  The reinforcing floor laying method of the invention according to claim 7 is disposed between the floor base and the finishing material, and is disposed on the upper surface of the floor base and a sheet-like upper surface portion disposed on the lower surface of the finishing material. And a resilient portion that connects the upper surface portion and the lower surface portion and constitutes a plurality of buffer spaces parallel to each other along the surface direction between the upper surface portion and the lower surface portion. A reinforcing step of arranging a reinforcing member for reinforcing the vertical strength of the body in the buffer space along the buffer space, and a laying step of laying the buffer member on which the reinforcing member is arranged on the floor base, It is what has.

  In the above-described reinforcing floor laying method, as a buffer disposed between the floor base and the finishing material, a sheet-like upper surface portion disposed on the lower surface of the finishing material, and a lower surface disposed on the upper surface of the floor base And an elastic part that connects the upper surface part and the lower surface part and constitutes a plurality of buffer spaces parallel to each other along the surface direction between the upper surface part and the lower surface part. It is done. And the reinforcement member which reinforces the intensity | strength of the up-down direction of a buffer body is arrange | positioned along a buffer space at a reinforcement process. Since the buffer spaces are arranged in parallel to each other, the reinforcing member can be easily arranged in the buffer space by forming the reinforcing member along the buffer space.

  Thereafter, in the laying step, the buffer body in which the reinforcing member is arranged is laid on the floor base. In this way, the buffer body can be easily reinforced and laid on the floor base.

  The reinforcing floor laying method according to an eighth aspect of the present invention includes a cutting step of cutting the buffer body according to a floor shape before the reinforcing step, and in the reinforcing step, the buffer body is cut. The reinforcing member is disposed on the opposite side to the opposite side.

  Thus, by arranging the reinforcing member on the opposite side to the cut side of the shock absorber, the reinforcing member can be arranged without being affected by the cutting shape.

  Since the present invention has the above configuration, it can be easily reinforced with a simple configuration.

  [First Embodiment]

  The floor structure 10 which is 1st Embodiment of this invention is provided with the floor foundation 12, the buffer body 20 for floors, and the finishing material 14, as shown in FIG.

  The floor foundation 12 is a concrete floor foundation. The finishing material 14 has a flat plate shape and is disposed so as to cover the floor base 12. The finishing material 14 is divided into a plurality of pieces, and the protruding strips 14 </ b> A and the concave grooves 14 </ b> B are formed on end surfaces facing each other so that the adjacent finishing materials 14 are fitted together.

  As the finishing material 14, a flooring material, a flooring, a carpet, a CF sheet, a cork, etc., which have been subjected to actual processing on the four circumferences from the viewpoints of usability and safety can be adopted. However, it is not limited to this, and ceramic finishing materials such as tiles and stones can also be used. In addition, thin decorative wood, soft resin on substrates such as plywood, MDF (medium fiber board), HDF (hard fiber board), OSB (oriented strand board), LVL (single board laminate), resin board, etc. It is also possible to use a composite of sheet finishing material, ceramic finishing material, etc. by bonding.

  The floor cushion 20 includes a buffer body 22 and a reinforcing member 30. The buffer body 22 includes an upper surface portion 23 disposed on the lower surface of the finishing material 14, a lower surface portion 25 disposed on the upper surface of the floor base 12, and an elastic portion 24 that connects the upper surface portion 23 and the lower surface portion 25. ing.

  The upper surface portion 23 has a sheet shape and is disposed so as to cover the entire lower surface of the finishing material 14. The lower surface portion 25 has a belt shape, and a plurality of the lower surface portions 25 are arranged in parallel on the floor base 12. Adjacent lower surface portions 25 are spaced apart from each other.

  The elastic portion 24 is disposed along the longitudinal direction of the lower surface portion 25 (hereinafter referred to as “X direction”), and connects the lower surface portion 25 and the upper surface portion 23. The one lower surface portion 25 and the two elastic portions 24 constitute a flange portion 28 that protrudes downward from the upper surface portion 23. A closed buffer space 26 surrounded by the upper surface portion 23, the elastic portion 24, and the lower surface portion 25 is formed inside the collar portion 28. The elastic part 24 can be elastically deformed by a load from above. The elastic portion 24 is connected to the upper surface portion 23 at a position widened from the lower surface portion 25, and the closed buffer space 26 partitioned by the elastic portion 24 has a trapezoidal cross section with the lower side being a short side. Has been. The closed buffer space 26 is configured in parallel along the X direction, and a plurality of the closed buffer spaces 26 are arranged in the Y direction orthogonal to the X direction. An open buffer space 27 is formed between the adjacent closed buffer spaces 26.

  The upper surface portion 23, the elastic portion 24, and the lower surface portion 25 are integrally formed, and the materials constituting the buffer body 22 include natural rubber, butadiene rubber, styrene butadiene rubber, isoprene rubber, chloroprene rubber, butyl rubber, Diene rubber such as nitrile rubber, ethylene propylene rubber, ethylene / propylene / diene terpolymer, urethane rubber, polyamide elastomer, polyethylene elastomer, epoxy elastomer, polyester elastomer, and other thermoplastic elastomers, soft vinyl chloride A soft resin such as a resin can be used. These may be solid or foam.

  Moreover, the upper surface part 23, the elastic part 24, and the lower surface part 25 can be made of the same material or different materials. Preferably, the three members are formed integrally by extrusion molding. The hardness is 40 to 80 degrees (JIS-A), preferably 50 to 60 degrees.

  As shown in FIG. 1, the reinforcing member 30 has a rectangular columnar cross section and is disposed in the open buffer space 27. The height H <b> 1 of the reinforcing member 30 is substantially the same as the cross section of the open buffer space 27, and the width W <b> 1 of the reinforcing member 30 is substantially the same as the upper surface portion 23 side of the open buffer space 27. It should be noted that the height H1 and the width W1 of the reinforcing member 30 described above are substantially the same height and width means that the reinforcing member 30 includes some that are not completely the same, but have some size.

  The material of the reinforcing member 30 is preferably a material having a higher spring coefficient in the vertical direction than the buffer body 22, and wood, foam, rubber, iron, resin, or the like can be used.

  Next, the facility (reinforcement) method of the floor structure 10 of this embodiment will be described.

  First, the buffer body 22 is formed by extrusion molding or the like. Next, the reinforcing member 30 is disposed in the open buffer space 27 corresponding to the portion requiring reinforcement, and is adhered to the upper surface portion 23 with an adhesive. Here, when the portion requiring reinforcement is arranged in the direction along the X direction, the reinforcing member 30 is placed in the open buffer space 27 as shown in FIG. It only has to be arranged along. In this case, by arranging the reinforcing member 30 over the entire length of the open buffer space 27, the reinforcing can be stably performed. Further, when the portion requiring reinforcement is arranged in the direction along the Y direction, as shown in FIG. 2B, the length of the reinforcing member 30 is shortened to form a plurality of open buffer spaces. What is necessary is just to arrange | position to the edge part of 27.

  Further, when the buffer body 22 is cut and used, the buffer body is cut into a desired shape and size before the reinforcing member 30 is arranged, and as shown in FIG. It is preferable to arrange the reinforcing member 30 on the side. Thus, by arranging the reinforcing member 30, the reinforcing member 30 can be easily arranged without being affected by the cutting shape.

  Thereafter, the floor cushion 20 including the reinforcing member 30 and the buffer body 22 is laid on the floor base 12. At this time, since the floor cushion 20 has the open buffer space 27, it can easily follow the unevenness of the floor foundation 12. Then, the finishing material 14 is laminated on the floor cushion 20.

  The floor cushion 20 may be bonded to the finishing material 14 in advance, and the floor cushion 20 provided below the finishing material 14 may be laid on the floor base 12.

  Thus, according to the present embodiment, the floor cushioning body 20 can be easily reinforced by disposing the reinforcing member 30 in the open buffer space 27 corresponding to the portion requiring reinforcement.

  Shock absorption in the floor cushion 20 of the present embodiment is performed by elastic deformation of the elastic portion 24 when the impact is small. When the impact is large, the elastic portion 24 is elastically deformed and buckled and deformed, the open buffer space 27 and the closed buffer space 26 are crushed, and the impact is absorbed. In this way, by absorbing the impact, a cushioning action can be achieved in the event of a fall on the floor surface.

  In the present embodiment, the reinforcing member 30 is arranged in the open buffer space 27. However, the reinforcing member 30 may be arranged in the closed buffer space 26 as shown in FIG. In this case, the reinforcing member 30 has a height substantially equal to the height of the closed buffer space 26 and a width substantially equal to the width of the closed buffer space 26 on the lower surface portion 25 side.

  Further, the reinforcing member 30 may be disposed in both the open buffer space 27 and the closed buffer space 26 as shown in FIG.

  In the present embodiment, the cross section of the reinforcing member 30 is rectangular. However, the reinforcing member 30 is not necessarily rectangular, and can be any shape that can be disposed in the closed buffer space 26 and the open buffer space 27. Further, the closed buffer space 26 and the open buffer space 27 may be filled in a shape substantially equal to the cross section of the closed buffer space 26 and the open buffer space 27.

  In this embodiment, the cross-sectional shape of the closed buffer space 26 is a trapezoidal shape. However, as shown in FIG. 5 (A), an oblong shape may be used as shown in FIG. 5 (B). It can also be.

  Further, as shown in FIG. 6, the buffer main body 22 is formed with a ridge 29 along the X direction on the upper surface portion 23 corresponding to the closed buffer space 26 (see FIG. 6A), or an open buffer. On the upper surface portion 23 corresponding to the space 27, a ridge 29 is formed along the X direction (see FIG. 6B), or on the upper surface portion 23 corresponding to both the closed buffer space 26 and the open buffer space 27, The ridges 29 may be formed along the X direction (see FIG. 6C). The ridge 29 has a protruding length of about 30 to 85% of the height of each buffer space, is configured integrally with the upper surface portion 23, and is elastically deformable.

  When the ridge 29 is formed, the reinforcing member 30 may be disposed in the buffer space where the ridge 29 is not formed, or may be disposed in the buffer space where the ridge 29 is formed. You may arrange | position to both. When the reinforcing member 30 is disposed in the buffer space of the portion where the ridge 29 is formed, the sum of the protruding length of the ridge 29 and the height of the reinforcing member 30 is the closed buffer space 26 or the open buffer. The height of the space 27 may be set. Note that the total height of the reinforcing members 30 described above may not be completely the same as the height of the closed space 26 or the open buffer space 27, but may be slightly larger or smaller.

  Moreover, you may form the protruding item | line 29 in the lower surface part 25, as shown in FIG.

  [Second Embodiment]

  Next, a second embodiment of the present invention will be described. In the present embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 8, the floor structure 40 of the present embodiment includes a floor foundation 12, a floor cushion 50, and a finishing material 14.

  About the floor foundation 12 and the finishing material 14 of this embodiment, the member similar to 1st Embodiment is used. The floor buffer 50 includes a buffer main body 52 and a reinforcing member 30. The buffer main body 52 includes an upper surface portion 53 disposed on the lower surface of the finishing material 14, a lower surface portion 55 disposed on the upper surface of the floor base 12, and an elastic portion 54 that connects the upper surface portion 53 and the lower surface portion 55. ing.

  The upper surface portion 53 is formed in a sheet shape and is disposed so as to cover the entire lower surface of the finishing material 14. Similarly to the upper surface portion 53, the lower surface portion 55 has a sheet shape and is disposed on the floor base 12.

  A plurality of elastic portions 54 are arranged in parallel along the X direction between the upper surface portion 53 and the lower surface portion 55. A space between the upper surface portion 53 and the lower surface portion 55 is partitioned by the elastic portion 54, and a plurality of buffer spaces 56 parallel to each other are configured. The elastic part 54 can be elastically deformed by a load from above. The elastic portion 54 is inclined with respect to the surface direction, and the cross section of the buffer space 56 has a trapezoidal shape with the lower side being a short side.

  The upper surface portion 53, the elastic portion 54, and the lower surface portion 55 are integrally configured. As a material constituting the buffer body 52, the same material as the buffer body 22 of the first embodiment can be used.

  As shown in FIG. 8, the reinforcing member 30 has a rectangular columnar cross section and is disposed in the buffer space 56. The height H <b> 2 of the reinforcing member 30 is substantially the same as the cross section of the buffer space 56, and the width W <b> 2 of the reinforcing member 30 is substantially the same width as the short side of the trapezoidal cross section of the buffer space 56. In addition, the height H2 and the width W2 of the reinforcing member 30 described above are substantially the same height and width means that the reinforcing member 30 includes some that are not completely the same, but have some size.

  The material of the reinforcing member 30 is preferably a material having a higher spring coefficient in the vertical direction than the buffer main body 52, and wood, foam, rubber, iron, resin, and the like can be used.

  Next, the facility (reinforcement) method of the floor structure 40 of this embodiment will be described.

  First, the buffer body 52 is formed by extrusion molding or the like. Next, the reinforcing member 30 is disposed in the buffer space 56 corresponding to the portion requiring reinforcement, and is adhered to the upper surface portion 53 with an adhesive. Here, the reinforcement member 30 should just arrange | position the reinforcement member 30 along the buffer space 56, when the part for which reinforcement is required is arrange | positioned in the direction along the X direction. Moreover, when the part which needs reinforcement is arrange | positioned in the direction along the Y direction, the length of the reinforcement member 30 should just be shortened and it may arrange | position to the edge part of the some buffer space 56. FIG.

  Thereafter, the floor buffer 50 including the reinforcing member 30 and the buffer main body 52 is laid on the floor base 12, and the finishing material 14 is stacked on the floor buffer 50.

  Thus, also by this embodiment, the floor cushioning body 50 can be easily reinforced by disposing the reinforcing member 30 in the buffer space 56 corresponding to the portion that needs reinforcement.

  The shock absorption in the floor cushion 50 of the present embodiment is performed by elastic deformation of the elastic portion 54 when the shock is small. When the impact is large, the elastic portion 54 is elastically deformed and buckled and deformed, the buffer space 56 is crushed, and the impact is absorbed. In this way, by absorbing the impact, a cushioning action can be achieved in the event of a fall on the floor surface.

  In the present embodiment, the cross section of the reinforcing member 30 is rectangular. However, the reinforcing member 30 is not necessarily rectangular, and may have any shape that can be disposed in the buffer space 56. Further, the buffer space 56 may be filled with a shape substantially equal to the cross section of the buffer space 56.

  In the present embodiment, the buffer space 56 has a trapezoidal cross-sectional shape. However, as shown in FIG. 9A, an elliptical shape may be used as shown in FIG. 9B. You can also

  Using the buffer main body 22 having the configuration of the first embodiment, the strength of the floor buffer was measured. As a floor cushion, Example 1: a reinforcing member arranged in the open buffer space 27, Comparative Example 1: a reinforcing member cut out of the buffer main body and replaced with the buffer main body in this part, comparison Example 2: A member without a reinforcing member was prepared. Each finishing material, buffer body, and reinforcing member are as shown in [Table 1].

As the buffer for the floor, those including Example 1, Comparative Example 1 and Comparative Example 2 were each constructed by about 1 m ² , a φ80 mm jig was placed on the finishing material, and a 100 kg weight was placed thereon, The amount of displacement at that time was measured. The obtained floor rigidity is as shown in [Table 2].

  In Example 1, the floor rigidity about 5 times that of Comparative Example 3 without a reinforcing member could be obtained. Moreover, Example 1 was able to obtain the floor rigidity substantially equivalent to the comparative example 2 which needs the operation | work which cuts off a buffer main body.

The floor structure of 1st Embodiment is shown, (A) is a perspective view, (B) is sectional drawing. FIG. 2A is a floor cushion according to the first embodiment, and FIG. 4A is a diagram in which reinforcing members are arranged in the longitudinal direction of a closed buffer space, and FIG. 4B is a diagram in which reinforcing members are arranged at end portions of a plurality of closed buffer spaces. It is a figure. The floor cushion of the first embodiment is a view showing an arrangement example of reinforcing members when (A) is cut in the longitudinal direction of the closed buffer space, and (B) is cut in the width direction of the closed buffer space. It is a figure which shows the example of arrangement | positioning of the reinforcement member at the time of being carried out. In the floor cushion of the modification of the first embodiment, (A) is an example in which a reinforcing member is disposed in the closed buffer space, and (B) is a reinforcing member disposed in the open buffer space and the closed buffer space. It is an example. It is sectional drawing which shows the buffer body for floors of the other modification of 1st Embodiment. It is sectional drawing which shows the example in which the protruding item | line is formed in the upper surface part of the buffer main body of 1st Embodiment. It is sectional drawing which shows the example in which the protruding item | line is formed in the lower surface part of the buffer main body of 1st Embodiment. The floor structure of 2nd Embodiment is shown, (A) is a perspective view, (B) is sectional drawing. It is sectional drawing which shows the buffer body for floors of the modification of 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Floor structure 12 Floor base material 14 Finishing material 20 Floor buffer body 22 Buffer main body 23 Upper surface part 24 Elastic part 25 Lower surface part 26 Closed buffer space 27 Open buffer space 28 Reinforcement member 40 Floor structure 50 Floor buffer body 52 Buffer Main body 53 Upper surface portion 54 Elastic portion 55 Lower surface portion 56 Buffer space

Claims (8)

A floor cushion disposed between the floor base and the finishing material,
A sheet-like upper surface portion disposed on the lower surface of the finishing material;
A lower surface portion disposed on an upper surface of the floor base;
An elastic part that connects the upper surface part and the lower surface part and constitutes a plurality of buffer spaces parallel to each other along the surface direction between the upper surface part and the lower surface part,
A reinforcing member that is disposed along at least a part of the buffer space along the buffer space and reinforces the strength in the vertical direction;
Floor cushion with The lower surface portions are belt-like and arranged in parallel so as to be separated from each other by a predetermined distance,
The buffer space includes a tunnel-shaped closed buffer space surrounded by the upper surface portion, the elastic portion, and the lower surface portion, and an open buffer space configured between the adjacent closed buffer spaces. The floor cushion according to claim 1, wherein the floor cushion is configured.   The floor cushion according to claim 1, wherein the lower surface portion is formed in a sheet shape disposed to face the upper surface portion.   The floor cushion according to any one of claims 1 to 3, wherein the reinforcing member is disposed over the entire length in the longitudinal direction of the buffer space.   4. The floor cushion according to claim 1, wherein a plurality of the reinforcing members are arranged at an end portion in a longitudinal direction of the buffer space. 5. Floor floor,
The floor cushion according to any one of claims 1 to 5, wherein the floor cushion is laminated on the floor foundation,
A finishing material laminated on the floor cushion;
With floor structure. The sheet-like upper surface portion disposed between the floor base and the finishing material and disposed on the lower surface of the finishing material, the lower surface portion disposed on the upper surface of the floor base, and the upper surface portion and the lower surface portion are connected. In addition, the cushioning body having a plurality of cushioning spaces parallel to each other along the surface direction between the upper surface portion and the lower surface portion reinforces the cushioning space in the vertical direction. A reinforcing step of arranging a reinforcing member along the buffer space;
A laying step of laying the buffer body on which the reinforcing member is disposed on the floor base;
Reinforcing floor laying method. Before the reinforcing step, having a cutting step of cutting the buffer body according to the floor shape,
The reinforcing floor laying method according to claim 7, wherein, in the reinforcing step, the reinforcing member is arranged on a side opposite to the cut side of the buffer body.

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