JP2009221671A - Sound insulation floor structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sound insulation floor structure capable of acquiring a stable sense of walking and surely damping vibrations generated on a floor by an impact. <P>SOLUTION: A plurality of floor board supporting members, which are provided between a sub-floor section 1 and a floor board 2, comprise a member A for an end, which holds a wall-side end of the floor board 2 by a wall 4, and an intermediate member B which holds both ends of the adjacent floor boards 2 and 2. The member A and the intermediate member B are equipped with fixing portions 10A and 10B which are fixed to floor beams 1a and 1b, holding portions 20A and 20B for holding the end of the floor board 2, and vibration damping means 30A and 30B which are provided between first vertical plate portions 11A and 11B of the fixing portions 10A and 10B and second vertical plate portions 21A and 21B of the holding portions 20A and 20B, respectively. Thus, the vibrations transmitted from an upper floor of a building to a lower floor thereof can be reduced. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a sound insulating floor structure in which a plurality of floor board support members including vibration damping means are provided between a floor base part having a plurality of floor beams and a floor board laid on the upper part of the floor base part.

For example, as for the impact sound of the floor that occurs when a child jumps or the like, as described in Patent Document 1, a method of attaching a cushioning material or an elastic sheet to the back surface of the flooring material itself, or by increasing the floor thickness Various countermeasures such as a method of attenuating floor vibration by increasing weight and rigidity have been tried.
Japanese Patent Laid-Open No. 08-209917

However, when reducing the impact noise of the floor, when the method of sticking the elastic sheet as described above to the back surface of the flooring material is adopted, the floor ups and downs are increased depending on the degree of elasticity of the elastic sheet, which is stable. You may not get a sense of walking.
For example, in a detached house, if a method of increasing the floor thickness is adopted, the fixing strength between structural members such as pillars, beams and walls to the floor is increased more than necessary, and the rigidity of the structural member itself is increased. Therefore, there are cases where problems such as increase in labor and cost associated with this occur.

  An object of the present invention is to provide a sound-insulating floor structure that can obtain a stable walking feeling and can surely attenuate the vibration generated on the floor by an impact.

The invention according to claim 1 is a sound insulation floor structure, for example, as shown in FIGS. 1 to 5, which is constructed between opposing walls 4 and has a plurality of floor beams 1 a and 1 b. The floor board 2 is laid on the upper surface of the flooring material 3 on the upper surface,
A plurality of floor plate support members for supporting the floor plate 2 are attached between the floor base portion 1 and the floor plate 2 at predetermined intervals along the length direction of the plurality of floor beams 1a and 1b. Provided,
This floor board supporting member is adjacent to the floor board 2 and 2 adjacent to the edge member A that holds the wall side end of the floor board 2 laid on the floor base 1 so as to be along the wall 4. It is composed of an intermediate member B that holds both ends that fit together,
The end member A and the intermediate member B are fixed to the floor beams 1a and 1b, and fixed portions 10A having first vertical plate portions 11A and 11B along the vertical surfaces of the floor beams 1a and 1b. 10B and a second vertical position that holds the end portion of the floor plate 2 above the fixed portions 10A and 10B at a predetermined interval and faces the first vertical plate portions 11A and 11B of the fixed portions 10A and 10B. It is provided with holding portions 20A and 20B having plate portions 21A and 21B, and vibration damping means 30A and 30B provided between the first vertical plate portions 11A and 11B and the second vertical plate portions 21A and 21B, respectively. Features.

  Here, as the vibration damping means 30A, 30B, a damping member made of a spring and a damper, rubber, an oil damper, a viscoelastic material, or the like is preferably used, and further, the vibration may be attenuated by friction.

According to the first aspect of the present invention, vibration generated in the floor plate 2 due to an impact is first transmitted to the holding portions 20A and 20B that hold the floor plate 2, and the holding portions 20A and 20B are transmitted to the floor plate. By receiving the vibration from 2, it moves up and down. At this time, the vibration transmitted through the holding portions 20A and 20B can be attenuated by the vibration attenuating means 30A and 30B, and the operation of the holding portions 20A and 20B can be suppressed by attenuating the vibration in this way. Therefore, the vibrations generated in the floor board 2 can be attenuated synergistically by the vibration damping means 30A, 30B.
Further, since the vibration damping means 30A and 30B are provided between the first vertical plate portions 11A and 11B and the second vertical plate portions 21A and 21B, respectively, the first vertical plate portions 11A and 11B and the second vertical plate portions 11A and 11B are provided. The vertical plate portions 21A and 21B are displaced from each other in the plane direction, and the vibration damping means 30A and 30B function in the shearing direction. That is, the vibration generated in the floor board 2 is transmitted from the holding portions 20A and 20B through the vibration damping means 30A and 30B along the paths from the fixing portions 10A and 10B and the floor beams 1a and 1b. Therefore, the vibration is less likely to be transmitted as compared to the case where the vibration generated on the floor board is transmitted downward in a straight line, such as a conventional method of attaching an elastic sheet to the back surface of the flooring material. Further, the vibration damping means 30A, 30B are provided in the process of transmitting the vibration generated in the floor plate 2 to the floor beams 1a, 1b, and are attenuated by the vibration damping means 30A, 30B. The vibration generated in the floor plate 2 hardly reaches the floor beams 1a and 1b. Therefore, the vibration transmitted from the upper floor to the lower floor of the building can be reduced, so that the impact sound of the floor from the upper floor to the lower floor of the building can be surely reduced.
Further, since the vibration generated in the floor plate 2 can be attenuated by the vibration damping means 30A and 30B, it is not necessary to use a flooring material or the like in which an elastic sheet or the like is attached to the back surface, for example. Therefore, unlike the conventional case, the ups and downs of the floor does not increase depending on the degree of elasticity of the elastic sheet attached to the back surface of the flooring material, so that a more stable walking feeling can be obtained compared to the conventional case. .

Further, since the holding portions 20A and 20B hold the end portion of the floor plate 2 at a predetermined interval above the fixing portions 10A and 10B, the holding portions 20A and 20B are interposed between the fixing portions 10A and 10B and the holding portions 20A and 20B. A gap will be formed. Thereby, even when the vibration generated in the floor plate 2 is transmitted to the holding portions 20A and 20B and the holding portions 20A and 20B are moved in the vertical direction, the fixing portions 10A and 10B and the holding portions 20A and 20B are moved. 20B can be prevented from colliding with each other, so that the vibration generated in the floor board 2 can be reliably transmitted from the holding portions 20A, 20B to the vibration damping means 30A, 30B, and the vibration damping means The vibration damping function by 30A and 30B can be made to work reliably.
Further, the floor plate support member is configured by only having a gap so that the fixed portions 10A and 10B and the holding portions 20A and 20B do not collide, and the vibration generated in the floor plate 2 is the vibration damping means. Since it is attenuated by 30A and 30B, it is not necessary to attenuate floor vibration by increasing the floor thickness and increasing the weight and rigidity as in the past, and the ceiling height of the lower floor or the upper floor is lowered. Can be prevented.

The invention according to claim 2 is the sound insulation floor structure according to claim 1, for example, as shown in FIGS.
The holding portion 20A of the end member A includes the second vertical plate portion 21A, a horizontal plate portion 22A protruding from the upper end portion of the second vertical plate portion 21A toward the wall 4, and the horizontal plate portion. A wall edge plate portion 23A protruding upward along the wall 4 from the protruding end of 22A, and a protruding piece 24A protruding in a direction parallel to the horizontal plate portion 22A from the upper end portion of the wall edge plate portion 23A,
The floor plate 2 laid along the wall 4 is such that the wall side end portion of the floor plate 2 is inserted between the horizontal plate portion 22A, the wall-side plate portion 23A, and the protruding piece 24A. It is laid on the upper part of the floor base part 1.

  According to the invention described in claim 2, the holding portion 20 </ b> A includes a wall edge plate portion 23 </ b> A that protrudes upward along the wall 4 from the protruding end of the horizontal plate portion 22 </ b> A, and extends along the wall 4. The floor plate 2 to be laid is formed by inserting the wall-side end portion of the floor plate 2 between the horizontal plate portion 22A, the wall-side plate portion 23A, and the protruding piece 24A. Since it is laid at the top, it can be laid at the top of the floor substrate 1 with the wall side end of the floor board 2 close to the wall 4. Accordingly, not only the floor plate 2 laid along the wall 4 but also the floor plate 2 laid on the upper portion of the floor base portion 1 can be securely placed on the floor base portion 1.

The invention according to claim 3 is the sound insulation floor structure according to claim 2, for example, as shown in FIG.
The fixing portion 10A of the end member A protrudes along the upper surface of the floor beam 1a from the first vertical plate portion 11A and the upper end portion of the first vertical plate portion 11A, and the holding portion 20A. A horizontal plate portion 22A and a horizontal plate portion 12A facing each other,
The horizontal plate portion 12A of the fixing portion 10A is formed with a first insertion hole 12Aa through which the fastening material 5 for fixing the fixing portion 10A to the floor beam 1a is inserted, and the first insertion hole 12Aa. Is set to be smaller in diameter than the head 5a of the fastening material 5,
The horizontal plate portion 22A of the holding portion 20A is formed with a second insertion hole 22Aa opposite to the first insertion hole 12Aa and having a larger diameter than the head portion 5a of the fastening material 5.
A wall-side end portion of the floor plate 2 held by the holding portion 20A of the end member A is opposed to a second insertion hole 22Aa formed in a horizontal plate portion 22A of the holding portion 20A, and the stop A third insertion hole 2a having a larger diameter than the head portion 5a of the dressing 5 is formed,
The fixing portion 10A is screwed into the floor beam 1a so that the fixing material 5 passes through the second and third insertion holes 22Aa and 2a and is inserted into the first insertion hole 12Aa. It is fixed to the floor beam 1a.

  According to the invention described in claim 3, the first insertion hole 12 </ b> Aa is set to have a smaller diameter than the head portion 5 a of the fixing material 5, and the second insertion hole 22 </ b> Aa is set to the fixing material 5. The third insertion hole 2a is set to be larger in diameter than the head portion 5a of the fixing material 5, and the fixing portion 10A is fixed to the fixing portion 10A. The material 5 is fixed to the floor beam 1a by passing through the second and third insertion holes 22Aa and 2a and screwing the material 5 into the floor beam 1a so as to pass through the first insertion hole 12Aa. Therefore, when the end member A is fixed to the floor beam 1a, the fixing portion 10A can be placed on the floor beam 1a while holding the wall side end portion of the floor board 2 by the holding portion 20A. The fastening material 5 is inserted from above the floor board 2 Nde, it is possible to fix the fixing portion 10A by the fastening member 5, the attachment and detachment of the floor plate 2 is facilitated.

The invention according to claim 4 is the sound insulation floor structure according to any one of claims 1 to 3, for example, as shown in FIGS.
The holding portion 20B of the intermediate member B includes one and the other protruding from the second vertical plate portion 21B and the upper surfaces of both the adjacent floor plates 2 and 2 from the upper end portion of the second vertical plate portion 21B. Projecting pieces 22B and 22B, and one and the other supporting pieces 23B and 23B projecting along the lower surfaces of both the adjacent floor plates 2 and 2 from near the center of the second vertical plate portion 21B. ,
The adjacent floor plates 2 and 2 have adjacent end portions of the adjacent floor plates 2 and 2 between the one and the other protruding pieces 22B and 22B and the one and the other support pieces 23B and 23B, respectively. It is laid in the upper part of the floor base part 1 so as to be inserted.

  According to invention of Claim 4, the said holding | maintenance part 20B is equipped with said one and other protrusion piece 22B, 22B, and said one and other support piece 23B, 23B, and the said adjacent floor board 2 is provided. , 2 insert adjacent ends of the adjacent floor plates 2, 2 between the one and other protruding pieces 22B, 22B and the one and other supporting pieces 23B, 23B, respectively. Since it is laid in the upper part of the floor base part 1, the projecting pieces 22B and 22B and the support pieces 23B and 23B can reliably hold the adjacent end portions of the adjacent floor plates 2 and 2, Adjacent floor boards 2 and 2 can be reliably placed on the floor base 1.

The invention according to claim 5 is the sound insulating floor structure according to any one of claims 1 to 4, for example, as shown in FIG.
The floor foundation 1 is constituted by a building floor panel,
In this building floor panel, a plurality of reinforcing bars serving as a floor beam 1b are arranged in parallel at predetermined intervals in a frame formed by assembling a frame material serving as a floor beam 1a into a rectangular frame shape. And it is formed by attaching the face material 1c to the lower surface of a reinforcement crosspiece.

According to invention of Claim 5, since the said floor foundation | substrate part 1 is comprised by the floor panel for construction, the said floor supporting member and the floor board 2 should be previously attached to this floor floor for construction. Work efficiency is good. Moreover, when the said wall 4 is comprised with the panel of the same quality as the said floor panel for construction, these floor panels for construction and the wall 4 can be connected easily.
The building floor panel has a plurality of reinforcing bars to be the floor beams 1b arranged in parallel at predetermined intervals in a frame formed by assembling the frame materials to be the floor beams 1a into a rectangular frame shape. Since it is formed by attaching the face material 1c to the lower surface of the frame body and the reinforcing bar material, a gap can be formed between the face material 1c and the floor plate 2. Accordingly, this gap can be used as a space for wiring or piping, for example, which is easy to use.

The invention according to claim 6 is the sound insulation floor structure according to claim 5, for example, as shown in FIG.
A sound absorbing material 6 is laid on the face material 1c.

  According to the invention described in claim 6, since the sound absorbing material 6 is laid on the face material 1c, the sound absorbing material 6 can absorb the impact sound of the floor from the upper floor to the lower floor of the building. It can be reduced more reliably.

According to the present invention, the vibration generated in the floor board due to the impact can be transmitted to the vibration damping means via the holding part and attenuated, and the vertical movement of the holding part can be suppressed by attenuating the vibration in this way, By this vibration damping means, the vibration generated on the floor board can be attenuated in synergy.
In addition, since vibration damping means is provided between the first vertical plate portion and the second vertical plate portion, the first vertical plate portion and the second vertical plate portion are displaced from each other in the plane direction, and vibration is caused. The damping means functions in the shear direction. That is, the vibration generated in the floor plate is transmitted from the holding portion via the vibration damping means to the fixed portion and the floor beam, so that an elastic sheet is placed on the back surface of the flooring material, for example, as in the past. The vibration is less likely to be transmitted as compared with the case where the vibration generated on the floor board is transmitted downward in a straight line as in the pasting method or the like. Furthermore, vibration damping means is provided in the process in which vibration generated in the floor plate is transmitted to the floor beam, and the vibration is attenuated by this vibration damping means. Almost never reach. Therefore, the vibration transmitted from the upper floor to the lower floor of the building can be reduced, so that the impact sound of the floor from the upper floor to the lower floor of the building can be surely reduced.
Further, since the vibration generated in the floor board can be attenuated by the vibration damping means, it is not necessary to use a flooring material or the like in which an elastic sheet or the like is attached to the back surface, for example. Therefore, unlike the conventional case, the ups and downs of the floor does not increase depending on the degree of elasticity of the elastic sheet attached to the back surface of the flooring material, so that a more stable walking feeling can be obtained compared to the conventional case. .
Further, since the holding portion holds the end portion of the floor board at a predetermined interval above the fixing portion, a gap is formed between the fixing portion and the holding portion. As a result, vibration generated in the floor board is transmitted to the holding part, and even when this holding part moves in the vertical direction, it is possible to prevent the fixed part and the holding part from colliding with each other. The vibration can be reliably transmitted from the holding portion to the vibration attenuating means, and the vibration attenuating function by the vibration attenuating means can be operated reliably.
In addition, the floor plate support member is configured only with a gap that does not allow the fixed portion and the holding portion to collide with each other, and the vibration generated in the floor plate is attenuated by the vibration damping means. By increasing the height and increasing the weight and rigidity, it is not necessary to attenuate the vibration of the floor, and the ceiling height of the lower floor or the upper floor can be prevented from being lowered.

  Embodiments of the present invention will be described below with reference to the drawings.

  As shown in FIGS. 1 to 5, the sound insulating floor structure of the present embodiment is constructed between the opposing walls 4 and on the upper surface of the floor base 1 having a plurality of floor beams 1 a and 1 b. A floor plate 2 on which a flooring material 3 is laid is laid, and a predetermined interval is provided between the floor base portion 1 and the floor plate 2 along the length direction of the plurality of floor beams 1a and 1b. A plurality of floor board support members that are attached and support the floor board 2 are provided, and the floor board support members are provided on the wall side of the floor board 2 that is laid on the upper portion of the floor base portion 1 along the wall 4. It is comprised by the member A for edge parts which hold | maintains an edge part, and the member B for intermediate | middle which hold | maintains both the adjacent edge parts of the adjacent floor boards 2 and 2, These member for edge parts A and the member for intermediate | middle B Are fixed to the floor beams 1a and 1b and the floor beams 1a and 1b are suspended. The fixed portions 10A and 10B having the first vertical plate portions 11A and 11B along the plane, and the end portions of the floor plate 2 are held above the fixed portions 10A and 10B at a predetermined interval, and the fixed portion 10A. , 10B, holding portions 20A, 20B having second vertical plate portions 21A, 21B facing the first vertical plate portions 11A, 11B, and between the first vertical plate portions 11A, 11B and the second vertical plate portions 21A, 21B. Vibration attenuating means 30A, 30B provided in the above.

Here, as shown in FIG. 1, the floor foundation 1 is constituted by, for example, a building floor panel.
In this building floor panel, a plurality of reinforcing bars serving as the floor beams 1b are arranged in parallel at predetermined intervals in a frame formed by assembling the frame materials serving as the floor beams 1a into a rectangular frame. It is formed by attaching the face material 1c to the lower surface of the frame and the reinforcing bar.
Moreover, since the said face material 1c is attached to the lower surface of the said frame and a reinforcement crosspiece, using this face material 1c as a ceiling of the lower floor of the building provided under the said floor base part 1 is used. it can.

And since the said floor base part 1 is comprised by the floor panel for construction in this way, since the said floor support member and the floor board 2 can be previously attached to this floor floor for construction, work efficiency is good. . In addition, when the wall 4 is composed of a panel having the same quality as the building floor panel, the building floor panel and the wall 4 can be easily connected.
The building floor panel has a plurality of reinforcing bars to be the floor beams 1b arranged in parallel at predetermined intervals in a frame formed by assembling the frame materials to be the floor beams 1a into a rectangular frame shape. Since the face member 1c is attached to the lower surface of the frame and the reinforcing bar member, a gap can be formed between the face member 1c and the floor plate 2. Accordingly, this gap can be used as a space for wiring or piping, for example, which is easy to use.

  A sound absorbing material 6 is laid on the face material 1c, and the sound absorbing material 6 can absorb the impact sound of the floor from the upper floor to the lower floor of the building, and can be reduced more reliably. It is like that. As the sound absorbing material 6, glass wool is used in the present embodiment, but is not limited thereto, and may be rock wool, urethane, or the like.

  On the other hand, the flooring material 3 laid on the upper surface of the floor board 2 is joined to each other by actual rowing by a convex male real part and a concave female real part. A skirting board 4 a is attached to the wall 4 and is located on the upper part of the wall-side end of the flooring material 3 laid on the upper surface of the floor board 2 along the wall 4.

The flooring material 3 laid on the upper surface of the floor plate 2 along the wall 4 may be laid on the upper surface of the floor plate 2 so as to be slightly separated from the wall 4. Similarly, the floor plate 2 laid on the upper portion of the floor base portion 1 along the wall 4 may be laid on the upper portion of the floor base portion 1 so as to be slightly separated from the wall 4. Good. Thereby, it is possible to prevent vibration generated in the floor plate 2 and the flooring material 3 from being transmitted to the other floor via the wall 4.
Further, when the flooring material 3 is slightly separated from the wall 4, the gap formed between the flooring material 3 and the wall 4 is shielded by the baseboard 4 a.

On the other hand, the portions other than the vibration damping means 30A, 30B of the end member A and the intermediate member B of the floor board support member of the present embodiment are made of the same kind of metal. These end member A and intermediate member B are formed by bending a metal plate.
Further, as the vibration damping means 30A, 30B of the present embodiment, high damping rubber is used, which is firmly fixed to the first vertical plate portions 11A, 11B and the second vertical plate portions 21A, 21B. ing. In addition, not only such a high damping rubber, but also, for example, a vibration damping member composed of a spring and a damper, rubber, an oil damper, a viscoelastic material, and the like are preferably used. May be.

  The vibration damping means 30A, 30B is a high damping rubber, for example, an environment such as a minute vibration during a normal walking of a human or a falling object, a vibration generated when a child jumps, or a traffic vibration. A viscoelastic body with a small strain dependency that functions in a wide range of amplitudes from vibration to wind turbulence during a typhoon and a large earthquake is used. That is, a material that exhibits a stable vibration energy absorption ability from a small strain to a large strain is used.

  As shown in FIGS. 1 to 5, the end member A is fixed to the floor beam 1a as described above, and the first vertical plate portion 11A along the vertical surface of the floor beam 1a is provided. The fixed portion 10A having the second vertical plate portion 21A that holds the end portion of the floor plate 2 at a predetermined interval above the fixed portion 10A and faces the first vertical plate portion 11A of the fixed portion 10A. And a vibration damping means 30A provided between the first vertical plate portion 11A and the second vertical plate portion 21A.

Further, as shown in FIGS. 1 and 2, the holding portion 20A of the end member A includes the second vertical plate portion 21A and the upper end portion of the second vertical plate portion 21A toward the wall 4. A protruding horizontal plate portion 22A, a wall edge plate portion 23A protruding upward from the protrusion edge of the horizontal plate portion 22A along the wall 4, and a direction parallel to the horizontal plate portion 22A from the upper end portion of the wall edge plate portion 23A And a projecting piece 24A projecting on the surface.
In the present embodiment, two wall-side plate portions 23A are provided for the holding portion 20A, and are provided so as to be bifurcated from both ends of the protruding end of the horizontal plate portion 22A. Further, two protruding pieces 24A provided at the upper end portion of the wall-side plate portion 23A are also provided for the holding portion 20A.

As shown in FIG. 3, the horizontal plate portion 22A of the holding portion 20A is opposed to a first insertion hole 12Aa formed in the horizontal plate portion 12A of the fixing portion 10A described later, and the fixing portion 10A is provided. A second insertion hole 22Aa having a diameter larger than that of the head portion 5a of the fastening member 5 fixed to the floor beam 1a is formed. The second insertion hole 22Aa is located near the central portion of the horizontal plate portion 12A, and is located between the wall-side plate portion 23A and the protruding piece 24A which are divided into two forks.
The projecting piece 24A is formed with a screw hole 24Aa penetrating the projecting piece 24A. After holding the wall-side end of the floor plate 2 by the holding section 20A, screws are screwed into the fixing piece 24Aa. The part 10A and the floor plate 2 may be connected.

The floor plate 2 laid along the wall 4 has a wall-side end portion of the floor plate 2 between the horizontal plate portion 22A of the holding portion 10A, the wall-side plate portion 23A, and the protruding piece 24A. It is laid on the upper part of the floor foundation 1 so as to be inserted into the floor.
Thereby, since it can lay in the upper part of the floor foundation part 1 in the state where the wall side end of this floor board 2 was brought close to the wall 4, not only the floor board 2 laid along the wall 4, The floor board 2 laid on the upper part of the floor base part 1 can be securely placed on the floor base part 1.

In addition, when holding | maintaining the edge part of the said floor board 2 with the said holding | maintenance part 20A, you may form the notch part corresponding to the said protrusion piece 24A in the upper surface side of the said floor board 2. FIG. As a result, the upper surface of the floor plate 2 and the upper surface of the projecting piece 24A are flush with each other, so that when the flooring material 3 laid on the upper surface of the floor plate 2 and the projecting piece 24A is laid, it can be laid without a step. .
In addition, the notch protrudes in a direction parallel to the horizontal plate portion 22A from the upper end portions of the wall-side plate portions 23A and 23A provided so as to be divided into two forks from both ends of the protruding end of the horizontal plate portion 22A. According to the position and shape of the protrusions 24A and 24A, the floor plate 2 is cut out.

Further, as shown in FIGS. 1 and 2, the fixing portion 10A of the end member A includes the first vertical plate portion 11A and the upper surface of the floor beam 1a from the upper end portion of the first vertical plate portion 11A. And a horizontal plate portion 12A facing the horizontal plate portion 22A of the holding portion 20A.
Furthermore, as shown in FIG. 3, the horizontal plate portion 12A of the fixed portion 10A is formed with a first insertion hole 12Aa for allowing the fastening material 5 to be inserted. The first insertion hole 12Aa is The fixing material 5 is set to have a smaller diameter than the head portion 5a.
The wall side end of the floor plate 2 held by the holding portion 20A of the end member A is opposed to the second insertion hole 22Aa formed in the horizontal plate portion 22A of the holding portion 20A, and A third insertion hole 2a having a diameter larger than that of the head 5a of the fastening material 5 is formed.

Then, the fixing portion 10A is screwed into the floor beam 1a so that the fixing material 5 passes through the second and third insertion holes 22Aa, 2a and is inserted into the first insertion hole 12Aa. Is fixed to the floor beam 1a.
Accordingly, when the end member A is fixed to the floor beam 1a, the fixing portion 10A is placed on the floor beam 1a while the wall side end portion of the floor board 2 is held by the holding portion 20A. In addition, since the fixing material 5 can be inserted from above the floor plate 2 and the fixing portion 10A can be fixed by the fixing material 5, the floor plate 2 can be easily attached and detached.

Moreover, the fixing portion 10A can be placed on the floor beam 1a while holding the wall-side end of the floor plate 2 by the holding portion 20A in this way, and the fastening material 5 can be placed on the floor plate 2 from above. The fixing portion 10A can be fixed by the fixing material 5 so that the floor plate 2 laid along the wall 4 is connected to the entire floor plate 2 laid on the floor base portion 1. It can be done at the end of the installation work. Alternatively, the floor plate 2 laid along the wall 4 can be performed at the beginning of the removal work of the entire floor plate 2 laid on the upper portion of the floor base portion 1.
That is, while the end opposite to the wall side end of the floor plate 2 laid along the wall 4 is held by the holding portion 20B of the intermediate member B, the wall side end of the floor plate 2 is It can be laid on top of the floor foundation 1 so as to be placed on the floor beam 1a. Accordingly, the process of attaching the floor board 2 laid along the wall 4 and the process of removing the floor board 2 can be the beginning of the installation work or removal work of the entire floor board 2, so that the floor base portion It is possible to easily and reliably perform the attaching operation or the detaching operation of the entire floor board 2 laid on the upper portion of 1.

  However, in the case where the floor board 2 is laid in advance in a factory or the like on the upper part of the floor foundation portion 1 constituted by the building floor panel, the floor board 2 is made of the flooring material that is the floor beams 1a and 1b and You may make it lay in the upper part of the said floor base part 1 so that it may be inserted and slid between each holding | maintenance part 20A, 20B of the member A for end parts attached to the reinforcement crosspiece, and the member B for intermediate | middle.

  On the other hand, as shown in FIGS. 1, 4 and 5, the intermediate member B is fixed to the floor beam 1b as described above, and the first vertical plate portion along the vertical surface of the floor beam 1b. A fixed portion 10B having 11B, and a second vertical plate that holds the end of the floor plate 2 at a predetermined interval above the fixed portion 10B and faces the first vertical plate portion 11B of the fixed portion 10B A holding portion 20B having a portion 21B and the vibration damping means 30B provided between the first vertical plate portion 11B and the second vertical plate portion 21B are provided.

  The holding portion 20B of the intermediate member B protrudes along the upper surfaces of both the second vertical plate portion 21B and the upper ends of the second vertical plate portions 21B and the adjacent floor plates 2, 2. And the other protruding pieces 22B and 22B, and one and the other supporting pieces 23B and 23B protruding along the lower surfaces of both the adjacent floor plates 2 and 2 from near the center of the second vertical plate portion 21B. ing.

In the present embodiment, the one and other protruding pieces 22B and 22B are provided at both ends of the upper end portion of the second vertical plate portion 21B. That is, the one and the other protruding pieces 22B and 22B further divide the pair of metal pieces provided at both ends of the upper end portion of the second vertical plate portion 21B so as to be divided into two parts. The metal piece is provided at the upper end portion of the second vertical plate portion 21B by bending it in a direction protruding along the upper surfaces of both of the adjacent floor plates 2, 2.
The protruding pieces 22B and 22B are formed with screw holes penetrating the protruding pieces 22B and 22B. After holding the end of the floor plate 2 by the holding portion 20B, screws are screwed in, You may make it connect the fixing | fixed part 10B and the said floor board 2. FIG.
Further, the one and the other support pieces 23B and 23B are formed by cutting away the vicinity of the central portion of the second vertical plate portion 21B while leaving the upper end portion, and further dividing the metal piece. At the same time, the divided metal pieces are formed in the vicinity of the center of the second vertical plate portion 21B by bending them in a direction protruding along the lower surfaces of both of the adjacent floor plates 2 and 2.

The adjacent floor plates 2 and 2 are arranged such that the adjacent end portions of the adjacent floor plates 2 and 2 are between the one and the other protruding pieces 22B and 22B and the one and the other support pieces 23B and 23B. Are laid on the upper part of the floor substrate 1.
Thereby, the adjacent end portions of the adjacent floor plates 2 and 2 can be reliably held by the projecting pieces 22B and 22B and the support pieces 23B and 23B, and the adjacent floor plates 2 and 2 can be held in the floor base portion. It can be securely placed on top of 1.

In addition, when hold | maintaining the edge part of the said floor board 2 by the said holding part 20A, you may form the notch part corresponding to the said protrusion pieces 22B and 22B in the upper surface side of the said floor board 2. FIG. Thereby, the upper surface of the floor plate 2 and the upper surfaces of the protruding pieces 22B and 22B are flush with each other. Therefore, when laying the flooring material 3 laid on the upper surfaces of the floor plate 2 and the protruding pieces 22B and 22B, Can be laid without steps.
The notch portion further divides the pair of metal pieces provided so as to be divided into two forks at both ends of the upper end portion of the second vertical plate portion 21B, and folds the divided metal pieces. According to the position and shape of the projecting portions 22B, 22B formed by bending, the floor plate 2 is cut out.

  In addition, although the notch part of this Embodiment shall be notched in the said floor board 2 according to the position and shape of said protrusion part 24A, 23B, the shape of said protrusion part 24A and protrusion part 23B is used. Instead, the notch may be formed only in accordance with the position. This eliminates the need to match the floor plate 2 laid along the wall 4 to the shape of the protruding portion 24A of the holding portion 20A of the end member A. This eliminates the need to distinguish between the floor plate 2 laid along the wall 4 and the floor plate 2 that is not.

Further, the fixing portion 10B of the intermediate member B includes the first vertical plate portion 11B and a horizontal plate portion 12B protruding from the upper end portion of the first vertical plate portion 11B along the upper surface of the floor beam 1b. I have. The horizontal plate portion 12B of the fixing portion 10B is inserted with a fastening material 5 for fixing the fixing portion 10B to the floor beam 1b, and has a first diameter smaller than the head portion 5a of the fastening material 5. An insertion hole 12Ba is formed.
And the fixing | fixed part 10B of this Embodiment is being fixed to the said floor beam 1b by screwing in the said floor beam 1b so that the said fixing material 5 may be penetrated to said 1st penetration hole 12Ba. And At this time, among the adjacent floor plates 2 and 2 held by the holding portion 20B, at least the floor plate 2 provided above the horizontal plate portion 12B has the intermediate member B fixed to the floor beam 1b. Later, it is laid on the floor base 1 so as to be held by the holding portion 20B.

The fixing portion 10B of the present embodiment is fixed to the floor beam 1b by screwing the fastening material 5 into the floor beam 1b so as to be inserted into the first insertion hole 12Ba. However, it is not limited to this. That is, among the adjacent floor plates 2 and 2 held by the holding portion 20B of the intermediate member B, the first insertion is inserted into an end portion of the floor plate 2 provided above the horizontal plate portion 12B of the fixing portion 10B. A second insertion hole 2b that is opposed to the hole 12Ba and has a larger diameter than the head 5a of the fastening member 5 may be formed.
Therefore, the fixing portion 10B is configured to allow the fixing material 5 to pass through the second insertion hole 2b and to be screwed into the floor beam 1b so as to pass through the first insertion hole 12Ba. It will be fixed to 1b.
Accordingly, when the intermediate member B is fixed to the floor beam 1b, the fixing portion 10B can be placed on the floor beam 1b while the end portion of the floor plate 2 is held by the holding portion 20B. Since the fixing material 5 can be inserted from above the floor plate 2 and the fixing portion 10B can be fixed by the fixing material 5, it is preferable that the floor plate 2 can be easily attached and detached.

On the other hand, as shown in FIGS. 2 to 5, the holding portions 20A and 20B of the end member A and the intermediate member B are spaced above the fixing portions 10A and 10B as described above. And since the edge part of the said floor board 2 is hold | maintained, a clearance gap will be formed between these fixing | fixed part 10A, 10B and holding | maintenance part 20A, 20B.
Thereby, even when the vibration generated in the floor plate 2 is transmitted to the holding portions 20A and 20B and the holding portions 20A and 20B are moved in the vertical direction, the fixing portions 10A and 10B and the holding portions 20A and 20B are moved. 20B can be prevented from colliding with each other.

Further, the second vertical plate portion 21A of the holding portion 20A of the end member A and the second vertical plate portion 21B of the holding portion 20B of the intermediate member B are separated from the second vertical plate portions 21A and 21B. Insertion holes 21Aa and 21Ba are formed through which fastening materials (not shown) to be screwed toward the floor beams 1a and 1b are inserted.
Although not shown, insertion holes for inserting the fastening material are also formed in the first vertical plate portions 11A and 11B facing the second vertical plate portions 21A and 21B.
The fastening material may or may not be inserted through the insertion holes 21Aa and 21Ba of the second vertical plate portions 21A and 21B and the insertion holes of the first vertical plate portions 11A and 11B. It shall be selectable.

When the fastening material is inserted into the insertion holes 21Aa and 21Ba of the second vertical plate portions 21A and 21B and the insertion holes of the first vertical plate portions 11A and 11B and screwed into the floor beams 1a and 1b. The end member A and the intermediate member B can be firmly fixed to the floor beams 1a and 1b. Further, the fastening material can surely prevent the second vertical plate portions 21A and 21B from being separated in the peeling direction from the first vertical plates 11A and 11B.
In this case, when the fixing members screwed into the floor beams 1a and 1b are subjected to vibration generated in the floor plate 2 to slightly suppress the holding portions 20A and 20B from moving in the vertical direction. However, even if the fastening material is screwed into the floor beams 1a and 1b, if vibration is generated in the floor plate 2, this vibration is received by the holding portions 20A and 20B. 20B also operates in the up-down direction using the deflection of the shaft portion of the fastening material due to vibration. Therefore, the vibration of the floor board 2 can be reliably damped by the vibration damping means 30A, 30B.

When the fastening material is inserted through the insertion holes 21Aa and 21Ba of the second vertical plate portions 21A and 21B and the insertion holes of the first vertical plate portions 11A and 11B as described above, at least the second vertical plate portion. The insertion holes 21Aa and 21Ba of 21A and 21B may be set to have a larger diameter than the shaft portion of the fastening material and a smaller diameter than the head.
That is, by making at least the insertion holes 21Aa and 21Ba of the second vertical plate portions 21A and 21B larger in diameter than the shaft portion of the fastening material, the upper and lower portions of the holding portions 20A and 20B when subjected to vibration Since the movement in the direction can be increased, the vibration damping function of the vibration damping means 30A, 30B can be effectively operated. Further, by making at least the insertion holes 21Aa and 21Ba of the second vertical plate portions 21A and 21B smaller in diameter than the head portion of the fastening material, the second vertical plate portions 21A and 21B are made to be in the first vertical direction. It is possible to reliably prevent the plates 11A and 11B from being separated in the peeling direction.

  When the fastening material is not inserted into the insertion holes 21Aa and 21Ba of the second vertical plate portions 21A and 21B and the insertion holes of the first vertical plate portions 11A and 11B, the vertical direction of the holding portions 20A and 20B. Therefore, the vibration damping performance of the vibration damping means 30A and 30B is higher than when the fastening material is inserted.

Further, when the fastening material is not inserted into the insertion holes 21Aa and 21Ba of the second vertical plate portions 21A and 21B and the insertion holes of the first vertical plate portions 11A and 11B in this way, The fixing portions 10A and 10B may be used for firmly fixing to the floor beams 1a and 1b.
That is, by making the insertion holes 21Aa and 21Ba of the second vertical plate portions 21A and 21B larger in diameter than the head portion of the fixing material, the fixing material is made to be the second vertical plate portions 21A and 21B. Can be screwed into the floor beams 1 and 1, so that the second vertical plate portions 21A and 21B are not interfered by the fastening material. Accordingly, since the vertical movement of the holding portions 20A and 20B is hardly suppressed by the fastening material, the fixing portions 10A and 10B are maintained while maintaining a high vibration damping performance of the vibration damping means 30A and 30B. Can be firmly fixed to the floor beams 1a and 1b.

  As described above, when the fastening material is inserted into at least one of the insertion holes 21Aa and 21Ba of the second vertical plate portions 21A and 21B and the insertion holes of the first vertical plate portions 11A and 11B. A screw insertion hole (not shown) through which the fastening material can be inserted may be formed in the high damping rubber that is the vibration damping means 30A, 30B.

  As described above, whether or not the fastening material is inserted or not inserted through the insertion holes 21Aa and 21Ba of the second vertical plate portions 21A and 21B and the insertion holes of the first vertical plate portions 11A and 11B is appropriately selected. By doing so, the fixing strength of the end member A and the intermediate member B to the floor beams 1a and 1b and the vibration damping performance of the vibration damping means 30A and 30B can be adjusted as appropriate. It becomes possible to respond to the demands of those who have a problem.

  Next, an operation when the vibration generated in the floor plate 2 is attenuated by the end member A and the intermediate member B will be described.

First, vibration is generated in the floor plate 2. The vibration generated in the floor plate 2 is transmitted to the end member A that holds the end of the floor plate 2 and the holding portions 20A and 20B of the intermediate member B.
At this time, the holding portions 20A and 20B operate in the vertical direction, and the first vertical plate portions 11A and 11B and the second vertical plate portions 21A and 21B are displaced from each other in the plane direction.

Subsequently, the vibration generated in the floor plate 2 is transmitted from the holding portions 20A and 20B to the vibration damping means 30A and 30B via the second vertical plate portions 21A and 21B of the holding portions 20A and 20B. .
The vibrations thus transmitted to the vibration damping means 30A and 30B are attenuated by the vibration damping means 30A and 30B.
Further, by dampening the vibration in this way, the vertical movement of the holding portions 20A and 20B is also suppressed.

  That is, the vibration damping means 30A and 30B function in the shear direction, and the vibration generated in the floor board 2 is transmitted from the holding parts 20A and 20B to the fixed part 10A via the vibration damping means 30A and 30B. , 10B and the paths to the floor beams 1a, 1b. That is, the vibration to be transmitted from the upper floor to the lower floor of the building is bent in a multistage manner in the process of being transmitted, and further, the vibration damping means 30A, 30B. Because it will also be through, it can be difficult to transmit vibration from the upper floor to the lower floor of the building.

According to the present embodiment, vibration generated in the floor plate 2 due to an impact is first transmitted to the holding portions 20A and 20B that hold the floor plate 2, and the holding portions 20A and 20B are transmitted from the floor plate 2. It will move up and down by receiving vibration. At this time, the vibration transmitted through the holding portions 20A and 20B can be attenuated by the vibration attenuating means 30A and 30B, and the operation of the holding portions 20A and 20B can be suppressed by attenuating the vibration in this way. Therefore, the vibrations generated in the floor board 2 can be attenuated synergistically by the vibration damping means 30A, 30B.
Further, since the vibration damping means 30A and 30B are provided between the first vertical plate portions 11A and 11B and the second vertical plate portions 21A and 21B, respectively, the first vertical plate portions 11A and 11B and the second vertical plate portions 11A and 11B are provided. The vertical plate portions 21A and 21B are displaced from each other in the plane direction, and the vibration damping means 30A and 30B function in the shearing direction. That is, the vibration generated in the floor board 2 is transmitted from the holding portions 20A and 20B through the vibration damping means 30A and 30B along the paths from the fixing portions 10A and 10B and the floor beams 1a and 1b. Therefore, the vibration is less likely to be transmitted as compared to the case where the vibration generated on the floor board is transmitted downward in a straight line, such as a conventional method of attaching an elastic sheet to the back surface of the flooring material. Further, the vibration damping means 30A, 30B are provided in the process of transmitting the vibration generated in the floor plate 2 to the floor beams 1a, 1b, and are attenuated by the vibration damping means 30A, 30B. The vibration generated in the floor plate 2 hardly reaches the floor beams 1a and 1b. Therefore, the vibration transmitted from the upper floor to the lower floor of the building can be reduced, so that the impact sound of the floor from the upper floor to the lower floor of the building can be surely reduced.
Further, since the vibration generated in the floor plate 2 can be attenuated by the vibration damping means 30A and 30B, it is not necessary to use a flooring material or the like in which an elastic sheet or the like is attached to the back surface, for example. Therefore, unlike the conventional case, the ups and downs of the floor does not increase depending on the degree of elasticity of the elastic sheet attached to the back surface of the flooring material, so that a more stable walking feeling can be obtained compared to the conventional case. .

Further, since the holding portions 20A and 20B hold the end portion of the floor plate 2 at a predetermined interval above the fixing portions 10A and 10B, the holding portions 20A and 20B are interposed between the fixing portions 10A and 10B and the holding portions 20A and 20B. A gap will be formed. Thereby, even when the vibration generated in the floor plate 2 is transmitted to the holding portions 20A and 20B and the holding portions 20A and 20B are moved in the vertical direction, the fixing portions 10A and 10B and the holding portions 20A and 20B are moved. 20B can be prevented from colliding with each other, so that the vibration generated in the floor board 2 can be reliably transmitted from the holding portions 20A, 20B to the vibration damping means 30A, 30B, and the vibration damping means The vibration damping function by 30A and 30B can be made to work reliably.
Further, the floor plate support member is configured by only having a gap so that the fixed portions 10A and 10B and the holding portions 20A and 20B do not collide, and the vibration generated in the floor plate 2 is the vibration damping means. Since it is attenuated by 30A and 30B, it is not necessary to attenuate floor vibration by increasing the floor thickness and increasing the weight and rigidity as in the past, and the ceiling height of the lower floor or the upper floor is lowered. Can be prevented.

It is a perspective view which shows the sound-insulating floor structure of this invention. It is a perspective view which shows the member for edge parts. It is sectional drawing which shows the attachment form of a floor board and the member for edge parts. It is a perspective view which shows the member for intermediate | middle. It is sectional drawing which shows the attachment form of a floor board and the member for intermediate | middle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Floor base part 2 Floor board A End part member B Intermediate member 10A Fixed part 10B Fixed part 11A 1st vertical board part 11B 1st vertical board part 20A Holding part 20B Holding part 21A 2nd vertical board part 21B 2nd vertical board Part 30A vibration damping means 30B vibration damping means

Claims (6)

A floor plate is laid between the opposing walls and on the upper surface of the floor base portion having a plurality of floor beams, and a flooring material is laid on the upper surface.
Between the floor base portion and the floor board, a plurality of floor board support members for supporting the floor board are provided while being attached at predetermined intervals along the length direction of the plurality of floor beams,
The floor plate support member holds both the end member that holds the wall side end portion of the floor plate laid on the upper portion of the floor base portion along the wall and the adjacent end portion of the adjacent floor plate. It consists of intermediate members that
The end member and the intermediate member are fixed to the floor beam, and a fixed portion having a first vertical plate portion along a vertical surface of the floor beam and a predetermined interval above the fixed portion. And a holding portion having a second vertical plate portion opposed to the first vertical plate portion of the fixed portion and between the first vertical plate portion and the second vertical plate portion. A sound insulation floor structure comprising vibration damping means. In the sound insulation floor structure according to claim 1,
The end member holding portion includes the second vertical plate portion, a horizontal plate portion projecting from the upper end portion of the second vertical plate portion toward the wall, and a protruding end of the horizontal plate portion to the wall. A wall edge plate portion that protrudes upward along, and a protruding piece that protrudes in a direction parallel to the horizontal plate portion from the upper end portion of the wall edge plate portion,
The floor plate laid along the wall is formed by inserting the wall side end portion of the floor plate between the horizontal plate portion, the wall-side plate portion, and the protruding piece, so that the upper portion of the floor base portion. Sound insulation floor structure characterized by being laid on the floor. In the sound insulation floor structure according to claim 2,
The fixing portion of the end member projects from the first vertical plate portion and the upper end portion of the first vertical plate portion along the upper surface of the floor beam, and faces the horizontal plate portion of the holding portion. With a horizontal plate,
The horizontal plate portion of the fixing portion is formed with a first insertion hole through which a fixing material for fixing the fixing portion to the floor beam is inserted, and the first insertion hole is formed on the fixing material. It is set to a smaller diameter than the head,
The horizontal plate portion of the holding portion is opposed to the first insertion hole, and a second insertion hole having a larger diameter than the head of the fastening material is formed,
The end of the floor plate held by the holding portion of the end member is opposed to the second insertion hole formed in the horizontal plate portion of the holding portion, and from the head of the fastening material Has a third insertion hole with a large diameter,
The fixing portion is fixed to the floor beam by passing the fastening material through the second and third insertion holes and screwing the fastening material into the floor beam so as to pass through the first insertion hole. Sound insulation floor structure characterized by In the sound insulation floor structure as described in any one of Claims 1-3,
The holding member for the intermediate member includes the second vertical plate portion, one and other protruding pieces protruding along the upper surfaces of both the adjacent floor plates from the upper end portion of the second vertical plate portion, 2 provided with one and the other support pieces projecting along the lower surfaces of both of the adjacent floor boards from near the center of the vertical board part,
The adjacent floor plates are arranged on the upper part of the floor base portion so that the adjacent end portions of the adjacent floor plates are inserted between the one and the other protruding pieces and the one and the other support pieces, respectively. Sound insulation floor structure characterized by being laid. In the sound-insulating floor structure as described in any one of Claims 1-4,
The floor foundation is constituted by a building floor panel,
In this building floor panel, a plurality of reinforcing bars serving as floor beams are arranged side by side at a predetermined interval in a frame formed by assembling a frame material serving as a floor beam into a rectangular frame shape. A sound insulation floor structure formed by attaching a face material to the lower surface of a crosspiece. In the sound insulation floor structure according to claim 5,
A sound insulation floor structure in which a sound absorbing material is laid on the face material.

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