JP2018003341A - Dry floor structure - Google Patents

Abstract

The present invention provides a dry floor structure capable of suppressing floor noise and improving workability and dismantling.
A dry floor structure includes a floor base member (12) having an upper surface (21a) extending in a horizontal direction, and a lower surface (13b) overlapping the upper surface of the floor base member and extending in a horizontal direction. The floor base member (12) and the floor board member (15) are in surface contact with each other in order to suppress rubbing noise caused by relative displacement between the floor board member (15), the floor base member (12), and the floor board member (15). And a sheet material (16) disposed at a place where it is easy to receive a local load in the region. The sheet material (16) includes an adhesive layer that is fixed to the upper surface (21a) of the floor base member (12) and a non-adhesive layer that is in surface contact with the lower surface (13b) of the floor board member (15).
[Selection] Figure 1

Description

  The present invention relates to a dry floor structure, and more particularly to a dry floor structure provided with a metal floor base member.

  Conventionally, various techniques have been proposed in order to prevent floor noise in a dry floor in which a floor base member and a floor board member are fixed with screws.

  For example, in Japanese Patent Application Laid-Open No. 2014-231731 (Patent Document 1), in a double floor structure in which a gypsum-based face material is disposed between a floor base plate and a floor-finished surface material, the lower surface of the gypsum-based face material is densified. In order to suppress the rubbing noise between the top surface of the head of the retaining screw and the upward projecting region, the top surface of the head or the upward projecting region of the inclined retaining screw is interposed between the floor base plate and the gypsum surface material. The structure which inserts the flexible sheet-like thing which absorbs a protrusion is disclosed.

JP 2014-231731 A

  In office buildings, etc., when it is desired to reduce the weight of the frame in relation to the ground, or when concrete cannot be used, the floor above the ground floor is often dried. There are several specifications for dry floors, but the squealing phenomenon on dry floors is a problem regardless of the specifications.

  A dry floor using a deck plate having repeated irregularities as a floor base member is useful because it is light and rigid. In a dry floor using a deck plate, a floor plate member including a floor finishing surface material and a gypsum board and the deck plate are fastened by screws. Since screws are usually screwed in from the upper surface (floor surface) side of the floor finish surface material, in a dry floor using a deck plate, the top surface of the screw head as described in Patent Document 1 is the lower surface of the gypsum board. There is no rubbing sound caused by biting into the surface. Therefore, it is considered that floor squeal is caused by another factor in the dry floor of the specification in which the metal floor base member such as the deck plate and the floor board member are fixed by screws screwed from the floor side. It is done.

  By the way, a measure to suppress floor noise in the dry floor by completely fixing the floor base member and the floor board member with an adhesive has been conventionally known, but when using an adhesive, construction and dismantling of the dry floor There is a problem that is difficult.

  The present invention has been made in order to solve the above-described problems, and its purpose is to provide a dry floor structure capable of suppressing floor noise and improving workability and dismantling. It is to be.

  A dry floor structure according to an aspect of the present invention includes a floor base member having an upper surface that extends in the horizontal direction, a floor board member that has a lower surface that is superimposed on the upper surface of the floor base member and extends in the horizontal direction, and a floor base member. In order to suppress the rubbing sound caused by relative displacement between the floor board member and the floor board member, a sheet material disposed in a place where the floor base member and the floor board member are likely to receive a local load in the area where the floor base member and the floor board member are in surface contact with each other. Prepare. The sheet material includes an adhesive layer that is fixed to the upper surface of the floor base member and a non-adhesive layer that is in surface contact with the lower surface of the floor board member.

  Preferably, the floor base member is a deck plate in which convex portions and concave portions constituting the upper surface are repeatedly provided, and the floor board member includes a gypsum board constituting the lower surface. In this case, the sheet material is desirably provided for each convex portion of the deck plate.

  Preferably, the sheet material is an adhesive tape attached along the extending direction of the convex portion.

  The frictional force between the surface of the non-adhesive layer and the lower surface of the floor board member is desirably smaller than the frictional force between the upper surface of the floor base member and the lower surface of the floor board member.

  In the form in which the floor foundation member and the floor board member are fastened by a plurality of screws, it is desirable that the sheet material is attached to a portion of the top surface of the floor foundation member where the screws penetrate.

  According to the present invention, it is possible to realize suppression of floor noise and improvement in workability and dismantling property.

It is sectional drawing which shows typically the dry-type floor structure which concerns on embodiment of this invention. 1 is a perspective view schematically showing a dry floor structure according to an embodiment of the present invention. It is sectional drawing which shows typically the structure of the sheet | seat material in embodiment of this invention. In embodiment of this invention, it is sectional drawing which shows notionally the relative shift | offset | difference of a floor base member and a floor board member. In the modification of embodiment of this invention, it is sectional drawing which shows notionally the relative shift | offset | difference of a floor base member and a floor board member. In embodiment of this invention, it is a figure which shows typically the other example of arrangement | positioning of a sheet | seat material. It is sectional drawing which shows typically the other dry-type floor structure to which a sheet | seat material can be applied.

  Embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated.

  Referring to FIG. 1, dry floor 1 according to the present embodiment includes a deck plate 12, a gypsum board 13, and a floor finish surface material 14. The deck plate 12 is a metal floor base member, and is fixed to the beam 11 constituting the building frame. The deck plate 12 has a convex portion 21 and a concave portion 22 repeatedly. The convex portion 21 and the concave portion 22 extend in the same direction. The top surface 21a of the convex portion 21 constitutes the upper surface of the deck plate 12 and extends in the horizontal direction. In the following description, the top surface 21 a of the convex portion 21 is also referred to as the upper surface 21 a of the deck plate 12. A direction in which the convex portion 21 and the concave portion 22 are adjacent to each other, that is, a direction intersecting with the extending direction of the convex portion 21 and the concave portion 22 is referred to as a lateral direction. 1 and 2, the horizontal direction of the dry floor 1 is indicated by an arrow A1.

  The gypsum board 13 extends in the horizontal direction and is placed on the convex portion 21 of the deck plate 12. The gypsum board 13 is a plate-like member in which gypsum is used as a core material and both surfaces are coated and molded with base paper for board. That is, the material of the upper surface 13a and the lower surface 13b of the gypsum board 13 is paper.

  The floor top surface material 14 is also a plate-like member that extends in the horizontal direction and is stacked on the top surface 13a of the gypsum board 13. The material of the floor finish surface material 14 is, for example, wood.

  The gypsum board 13 and the floor finishing surface material 14 constitute a floor plate member 15 that is stacked on the upper surface 21 a of the deck plate 12. The upper surface of the floor board member 15 is a floor surface facing the indoor space of the building, and is constituted by the upper surface 14 a of the floor finishing surface material 14. In the following description, the upper surface 14a of the floor finish surface material 14 is also referred to as a floor surface 14a. The lower surface of the floor board member 15 is constituted by the lower surface 13 b of the gypsum board 13.

  The floor finishing surface material 14, the gypsum board 13, and the deck plate 12 are fastened by screws 3 screwed from the floor surface 14a side. Since the gypsum board 13 is a member that does not work with screws, the floor finishing surface material 14 and the deck plate 12 are firmly fastened by screws 3 with the gypsum board 13 sandwiched therebetween, so that these three layers are fixed. Is done.

  By the way, when the screw 3 is screwed in during construction, the floor 3 is easily lifted because the screw 3 is idle when the tip of the screw 3 hits the metal deck plate 12. In order to prevent the floor finish 14 from being lifted, a screw with a reamer may be used for the screw 3. Even in such a case, a clearance (screw) 3 play) will occur. Therefore, there is a limit to the attractive force (fastening force) between the deck plate 12 and the floor finish 14 by the screws 3.

  Therefore, when a treading pressure is applied to the floor surface 14a by a person walking or the like, both the floor finish surface material 14 and the gypsum board 13 bend downward, so that the three layers (between the deck plate 12 and the gypsum board 13). A relative deviation occurs between the gypsum board 13 and the floor finish 14.

  Here, in a known dry floor, the metal surface (upper surface 21 a) and the paper surface (lower surface 13 b) rub between the deck plate 12 and the gypsum board 13. Therefore, it is considered that a rubbing sound was generated with the relative displacement between the deck plate 12 and the gypsum board 13 in a known dry floor. In particular, when the floor finishing material 14 and the gypsum board 13 bend downward, a load is locally applied to the fastening portion of the screw 3. For this reason, it is considered that the rubbing sound between the deck plate 12 and the gypsum board 13 at the fastening portion of the screw 3 is a major cause of floor noise.

  Based on such knowledge, in the present embodiment, the sheet material 16 is provided on the convex portion 21 of the deck plate 12 through which the screws 3 penetrate. That is, in the fixed state of the dry floor 1, the screw 3 for fastening the above three layers is configured to penetrate the sheet material 16.

  As shown in FIG. 3, the sheet material 16 has a two-layer structure of an adhesive layer 41 and a non-adhesive layer 42. The adhesive layer 41 is formed on the back side of the sheet material 16 and is fixed to the upper surface 21 a of the deck plate 12. The non-adhesive layer 42 is formed on the surface side of the sheet material 16 and is in surface contact with the lower surface 13 b of the gypsum board 13. The thickness of the sheet material 16 is, for example, 0.5 mm to 1.0 mm. In FIG. 3 and the like, the thickness of the sheet material 16 is exaggerated.

  The sheet material 16 is typically a single-sided adhesive tape that is attached along the extending direction of the convex portions 21 of the deck plate 12 as shown in FIG. The sheet material 16 is attached in advance to the top surface 21 a of the convex portion 21 of the deck plate 12 before being fixed with the screws 3. The width dimension of the sheet material 16 may be smaller than the width dimension of the top surface 21 a of the convex portion 21.

  The non-adhesive layer 42 of the sheet material 16 is made of a material other than metal such as aluminum, and is made of, for example, glass fiber or nonwoven fabric. In this case, the frictional force between the surface 42a of the non-adhesive layer 42 that is in surface contact with each other (that is, the surface of the sheet material 16) and the lower surface 13b of the gypsum board 13 is the deck plate 12 that is in surface contact with each other when the sheet material 16 is not interposed. It is smaller than the frictional force between the upper surface 21a of the steel sheet and the lower surface 13b of the gypsum board 13.

  By simply fixing the sheet material 16 to the upper surface 21a of the deck plate 12, the floor noise of the dry floor 1 is suppressed. This will be specifically described with reference to FIG. 4 corresponds to an enlarged view of a portion surrounded by a broken line in FIG. 1, but the screw 3 is not shown in FIG.

  When the floor plate member 15 is bent downward by the stepping pressure from above the floor surface 14a and the deck plate 12 and the gypsum board 13 are relatively displaced laterally as shown in the conceptual diagram of FIG. The gypsum board 13 slides on the surface. Thereby, the rubbing sound by friction with the sheet material 16 and the gypsum board 13 is suppressed. In FIG. 4, for easy understanding, the position of the sheet material 16 that is in surface contact with the lower surface 13 b of the gypsum board 13 before the relative deviation is indicated by a thick broken line.

  As described above, in the present embodiment, the deck plate 12 and the gypsum board 13 are not fixed to each other with an adhesive to prevent the relative shift therebetween, but the relative shift between the two is allowed. In addition, floor noise of the dry floor 1 can be effectively suppressed with a simple configuration in which the sheet material 16 is provided at a place where the rubbing sound is relatively large, that is, a fastening position of the screw 3 to which a local load is applied. be able to.

  Further, in this embodiment, since the tape-like sheet material 16 only needs to be attached to the upper surface 21a of the deck plate 12, the workability is improved as compared with the case where the adhesive is applied to the upper surface 21a of the deck plate 12. The Further, since the sheet material 16 is fixed only to the deck plate 12 and not fixed to the gypsum board 13, the dry floor 1 can be easily disassembled. Therefore, the structure of the dry-type floor 1 is suitable for, for example, a temporary house or a limited-time facility, and has high versatility.

  Moreover, in this Embodiment, the sheet | seat material 16 is affixed in a line along the extension direction of the convex part 21 for every convex part 21 of the deck plate 12. FIG. Therefore, even if the penetration position of the screw 3 in the deck plate 12, that is, the pitch of the screw 3 is not determined in advance, the sheet material 16 can be reliably interposed at the penetration position of the screw 3.

  In addition, if the sheet | seat material 16 has the non-adhesion layer 42 in the surface side (upper surface side) and has the adhesion layer 41 in the back surface side (lower surface side), another layer will be between these layers 41 and 42. May be interposed.

(Modification)
In the present embodiment, the frictional force of the contact surface between the sheet material 16 and the gypsum board 13 is made as small as possible to make them easy to slip. However, the sheet material may follow the displacement of the gypsum board 13 only within a certain displacement range.

  FIG. 5 conceptually shows the role of the sheet material 16 </ b> A when the relative displacement between the deck plate 12 and the gypsum board 13 (floor board member 15) occurs in the modification of the present embodiment. Note that the screw 3 is not shown in FIG.

  As shown in FIG. 5, when the lateral relative displacement between the deck plate 12 and the gypsum board 13 is within a predetermined range, the sheet material 16 </ b> A is slightly deformed in the width direction (lateral direction). There is no rubbing between the upper surface of the material 16A and the lower surface 13b of the gypsum board 13.

  The relative displacement between the deck plate 12 and the gypsum board 13 is actually a minute displacement. Therefore, by causing the sheet material 16A to follow the lateral displacement of the gypsum board 13 by its thickness within a certain displacement range, the deck plate 12 and the gypsum board 13 are fixed with an adhesive at the start of the occurrence of relative displacement. The same effect can be obtained.

  In the present modification, the material of the non-adhesive layer 42 of the sheet material 16A is desirably flexible, and may be an elastic material such as rubber, for example. Further, the frictional force between the surface 42a of the non-adhesive layer 42 of the sheet material 16A and the lower surface 13b of the gypsum board 13 causes the upper surface 21a of the deck plate 12 and the lower surface of the gypsum board 13 to be in surface contact with each other when the sheet material 16A is not interposed. It may be larger than the frictional force with 13b. Further, the surface 42a of the non-adhesive layer 42 of the sheet material 16A may have irregularities instead of a smooth surface. Note that the surface 42a of the sheet material 16 described above may also have irregularities instead of a smooth surface.

  When the relative deviation amount between the deck plate 12 and the gypsum board 13 exceeds a certain deviation range, the follow-up of the sheet material 16A to the gypsum board 13 is released. For this reason, the material and / or surface roughness of the non-adhesive layer 42 of the sheet material 16A is a material and / or surface roughness that can follow the displacement of the gypsum board 13 to some extent and can minimize the rubbing noise with the paper material. It is desirable to be. It is considered that the rubbing sound accompanying the displacement between the surfaces often occurs at the moment when the displacement starts to occur. Therefore, even when a rubbing sound is generated when the surface 42a of the sheet material 16A and the lower surface 13b of the gypsum board 13 are rubbed, the follow-up of the sheet material 16A is performed when the relative deviation amount is small. Therefore, the frequency of occurrence of floor noise can be reduced.

  In addition, in order to reduce the rubbing sound of both when the tracking is released, as described in the above embodiment, the surface 42a of the non-adhesive layer 42 of the sheet material 16A and the lower surface 13b of the gypsum board 13 are used. The frictional force may be smaller than the frictional force between the upper surface 21a of the deck plate 12 and the lower surface 13b of the gypsum board 13 that are in surface contact with each other when the sheet material 16A is not interposed.

(Other variations)
In the present embodiment, the sheet material 16 is pasted along the extending direction of the convex portion 21 of the deck plate 12, but it may be pasted only at the penetration portion of the screw 3. That is, the plurality of sheet materials 16 may be attached to each other at intervals along the extending direction of the convex portion 21 of the deck plate 12. In this case, like the sheet material 16B shown in FIG. 6, the sheet material may be an adhesive seal having a predetermined size.

  Further, in the present embodiment, the floor base member is the deck plate 12 having unevenness repeatedly, but is not limited. The floor base member may be a flat plate having no unevenness. Even in such a case, it is only necessary to arrange the sheet material 16 only at the fastening position of the screw 3 in the region where the gypsum board 13 and the flat plate are in surface contact. Therefore, construction and dismantling of the dry floor 1 can be easily performed.

  In the present embodiment, the sheet material 16 is disposed only on the contact surface between the deck plate 12 and the gypsum board 13, but the sheet material 16 is also disposed on the contact surface between the gypsum board 13 and the floor finishing material 14. May be arranged. Even in this case, the sheet material 16 only needs to be provided only in a portion through which the screw 3 penetrates in the entire region where the gypsum board 13 and the floor finishing surface material 14 are in surface contact.

  Moreover, in the said embodiment, although the floor board member was comprised by the gypsum board 13 and the floor finishing surface material 14, the floor board member may contain the other surface material. Further, the hard face material placed on the deck plate 12 may be a face material other than the gypsum board 13.

  Further, the floor base member is not limited to a metal plate, and may be a support member such as a metal joist. In this case, as shown in FIG. 7, the dry floor 1 </ b> A includes, for example, a plurality of steel joists 51, a face material 52 placed on the steel joists 51, and a gypsum board stacked on the face material 52. 13 and a floor finishing material 14 stacked on the gypsum board 13. In the dry floor 1A, the steel joist 51 and the face material 52 are fixed (fastened) by screws 3, and the floor finishing surface material 14, the gypsum board 13, and the face material 52 are screwed from the floor side by screws 3. It is fixed (fastened). In this case, the steel joists 51 may be regarded as the floor base member, and the other three layers of face materials may constitute the floor board member 53.

  Even in such a configuration, floor noise can be suppressed by disposing the sheet material 16 between the steel joist 51 and the face material 52 that are likely to receive a local load. In addition, as shown with an imaginary line in FIG. 7, you may arrange | position the sheet | seat material 16 also in the location where the screw | thread 3 penetrates among the contact surfaces of the face material 52 and the gypsum board 13, for example.

  In the above description, the floor board member is bent downward due to a place where the floor base member and the floor board member are in contact with each other, which is susceptible to a local load, that is, a stepping pressure applied to the floor surface. In this case, the portion that receives the load locally corresponds to the fastening portion of the screw 3. However, since a local load can also be applied to the joint (corner) of the face material constituting the floor base member, the portion that is likely to receive a local load may be a joint of the face material. That is, the sheet material may be disposed at the joint of the face material.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  1,1A Dry floor, 3 screws, 11 beams, 12 deck plates, 13 gypsum board, 14 floor finish material, 15, 53 floor board members, 16, 16A, 16B sheet material, 21 convex portions, 22 concave portions, 41 adhesive layer , 42 Non-adhesive layer, 51 Steel joist, 52 Face material.

Claims (5)

A floor foundation member having an upper surface extending in a horizontal direction;
A floor board member having a lower surface that is overlapped with the upper surface of the floor base member and extends in a horizontal direction;
In order to suppress a rubbing sound caused by a relative displacement between the floor base member and the floor board member, in a region where the floor base member and the floor board member are likely to receive a local load in a surface contact area. A sheet material to be arranged,
The said sheet | seat material is a dry-type floor structure containing the adhesion layer which adheres to the said upper surface of the said floor base member, and the non-adhesion layer which surface-contacts with the said lower surface of the said floor board member. The floor base member is a deck plate in which convex portions and concave portions constituting the upper surface are repeatedly provided,
The floor board member includes a gypsum board constituting the lower surface,
The dry-type floor structure according to claim 1, wherein the sheet material is provided for each of the convex portions of the deck plate.   The dry floor structure according to claim 2, wherein the sheet material is an adhesive tape that is attached along the extending direction of the convex portion.   The dry type according to any one of claims 1 to 3, wherein the frictional force between the surface of the non-adhesive layer and the lower surface of the floor board member is smaller than the frictional force between the upper surface of the floor base member and the lower surface of the floor board member. Floor structure. The floor base member and the floor board member are fastened by a plurality of screws,
The dry floor structure according to any one of claims 1 to 4, wherein the sheet material is affixed to a portion of the upper surface of the floor base member through which the screw penetrates.

Images