JP3047341U - Sound insulation structure - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a sound insulation structure that can be easily assembled in a wooden building, a steel-framed building, or the like, while suppressing the transmission of sounds on floors as noise downstairs. SOLUTION: A damping steel plate 10A is sandwiched between a structural member 1 downstairs and a structural member 2 upstairs. For this reason, the sound on the floor is blocked by the damping steel plate 10A, and the vibration of the sound is attenuated, so that the sound on the floor can be suppressed from being transmitted as noise to the floor.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a sound insulation structure. More specifically, the present invention relates to a sound insulation structure suitable for a wooden building, a steel frame building, and the like.

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, in a building having two or more floors, noises above the floor have leaked downstairs, resulting in noise. For example, it is not unusual for the sound of a beautiful piano to be heard upstairs, but if this sound is transmitted downstairs, it can only be heard as loud noises downstairs. In particular, in a wooden building using the 2 × 4 (two-by-four) method, the sound of the upper floor is easily transmitted to the lower floor as noise. In the case of steel buildings, the sound is notably impenetrable, and although soundproofing is better than wooden buildings, it does not mean that the sound of the upper floor is not completely leaked downstairs.

[0003]

[Problems to be solved by the invention]

 However, there has not been a sound insulation structure in a building to completely prevent sound above the floor from being transmitted as noise downstairs. For this reason, there is a demand for a building having a simple structure that prevents the sound above the floor, such as a wooden building or a steel-frame building, from being transmitted as noise downstairs.

[0004] In view of such circumstances, the present invention provides a sound insulation structure that suppresses the transmission of noises upstairs as noise downstairs in a wooden building or a steel-framed building, and that can be easily assembled. The purpose is to:

[0005]

[Means for Solving the Problems]

 The sound insulation structure according to claim 1 is characterized in that a damping steel plate is sandwiched between a structural member below the floor and a structural member above the floor. The sound insulation structure according to claim 2 is characterized in that a vibration damping steel plate is partially sandwiched between a structural member below the floor and a structural member above the floor. According to a third aspect of the present invention, the damping steel plate is a flat plate. The sound insulation structure according to a fourth aspect is characterized in that the damping steel plate is formed in a U-shape in a cross-sectional view by bending both right and left sides. According to a fifth aspect of the present invention, in the sound insulation structure, a burr is formed on a back surface of the damping steel plate. The sound insulation structure according to claim 6 is characterized in that the tip of the burr has a pointed shape.

[0006] In the present specification, the term "structural member" refers to a beam, a bar, a trunk, a column, a lower frame, an upper frame, or a beam that constitutes a building, whether it is a wooden building or a steel building. This concept includes members that receive loads, such as head ties.

[0007]

[Embodiment of the invention]

 Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic perspective view of the sound insulation structure of the first embodiment. As shown in the figure, a sound insulation structure according to the first embodiment includes a downstairs structural member 1 such as an upper frame or a beam and an upstairs structural member 2 such as a head tie or a beam. A plurality of vibration damping steel plates 10A are interposed at arbitrary intervals along the longitudinal direction of the structural member 1 described above. Note that the structural member 1 below the floor or the structural member 2 above the floor of the sound insulation structure of the first embodiment can be applied to any of a wooden building, a steel frame building, and the like. Furthermore, a plurality of vibration-damping steel plates 10A may be laid without gaps and adjacent to each other, or one elongated vibration-damping steel plate 10A may be used instead of the plurality of vibration-damping steel plates 10A.

FIG. 2 is a schematic diagram of the damping steel sheet 10A. As shown in the figure, the damping steel plate 10A is a flat laminated plate in which a damping resin 12 is sandwiched between a pair of steel plates 11,11. Vibration (noise) received on one steel plate 11 of the damping steel plate 10A is sound-insulated by the large mass of the steel plate 11 and becomes small vibration. This vibration is further attenuated by the phase difference of the vibration system of the whole damping steel plate 10A caused by the shear phenomenon and the sticking phenomenon of the damping resin 12. This vibration (noise) is further shielded by the other steel plate 11 of the damping steel plate 10A. Thus, the vibration can be attenuated by the damping steel plate 10A.

A method for assembling the sound insulation structure according to the first embodiment will be described. As shown in FIG. 1 again, first, a plurality of vibration damping steel plates 10A are placed on the upper surface of the structural member 1 downstairs at desired intervals along the longitudinal direction of the structural member 1 downstairs. Then, the structural member 2 upstairs is placed on the upper surface of the damping steel plate 10A in the same direction as the structural member 1 downstairs. In the case of a wooden building, for example, the structural member 2 upstairs is nailed to the structural member 1 downstairs, and in the case of a steel structure, the structural member 2 upstairs is connected to the structural member 1 downstairs, for example. With bolts and nuts. Then, the damping steel plate 10A is sandwiched and fixed by the structural member 1 on the lower floor and the structural member 2 on the lower floor. As described above, the sound insulation structure according to the first embodiment can be easily assembled.

According to the sound insulation structure of the first embodiment configured as described above, the sound on the floor is blocked by the damping steel plate 10A, and the vibration of the sound is attenuated. This has the effect of suppressing transmission of the sound as noise downstairs.

Next, a sound insulation structure according to a second embodiment will be described. FIG. 3 is a schematic perspective view of the sound insulation structure of the second embodiment. As shown in the figure, the sound insulation structure of the second embodiment is a sound insulation structure of the first embodiment, instead of the vibration damping steel plate 10A. The structural member 1 downstairs and the structural member 2 upstairs of the second embodiment are substantially the same as the structural member 1 downstairs and the structural member 2 upstairs of the first embodiment, respectively. The damping steel plate 10B is different from the damping steel plate 10A of the sound insulation structure of the first embodiment in that the left and right portions of the flat plate are bent to form a U-shape in cross section. The structural member 1 downstairs or the structural member 2 upstairs in the sound insulation structure of the second embodiment can be applied to any of a wooden building, a steel frame building, and the like.

A method for assembling the sound insulation structure according to the second embodiment will be described. First, on the upper surface of the structural member 1 downstairs, a plurality of damping steel plates 10B are placed at desired intervals along the longitudinal direction of the structural member 1 downstairs, with the bent portions on the left and right sides thereof facing upward. . Then, the structural member 2 on the floor is placed on the upper surface of the damping steel plate 10B such that the structural member 2 on the floor is fitted between the bent portions on both the left and right sides of all the damping steel plates 10B. For example, when the structural member 2 on the upper floor is nailed to the structural member 1 on the lower floor with a nail or tightened with a bolt and a nut, the damping steel plate 10B is formed by the structural member 1 on the lower floor and the structural member 2 on the upper floor. It is sandwiched and fixed. As described above, the sound insulation structure according to the second embodiment can be easily assembled. Moreover, in the case of the sound insulation structure of the second embodiment, the damping steel plate 10B can be fitted into the structural member 2 on the floor, so that the damping steel plate 10B on the structural member 1 on the lower floor or the structural member 2 on the floor can be fitted. This has the effect that positioning and fine adjustment can be performed easily. The damping steel plate 10B may be fitted to the structural member 1 downstairs with the left and right bent portions thereof facing downward.

According to the sound insulation structure of the second embodiment, the sound on the floor is sound-insulated by the damping steel plate 10B and the vibration of the sound is attenuated. This has the effect of suppressing transmission as a result.

Next, a sound insulation structure according to a third embodiment will be described. 4 is a schematic perspective view of the sound insulation structure of the third embodiment, FIG. 5 is a single view of the damping steel sheet 10C, (A) is a perspective view seen from below, and (B) is a side view. As shown in FIGS. 4 and 5, the sound insulating structure of the third embodiment has a vibration damping steel plate 10C instead of the vibration damping steel plate 10A in the sound insulating structure of the first embodiment. The structural members 1 downstairs and the structural members 2 upstairs of the third embodiment are substantially the same as the structural members 1 downstairs and the structural members 2 upstairs of the first embodiment, respectively.

The damping steel sheet 10C has a pair of front and rear burrs 15C, 15C formed on the back surface of the damping steel sheet 10A. In order to form the burr 15C, for example, a conical punch with a sharp pointed end of a press drilling machine may be used to penetrate the damping steel plate 10C from the front surface to the back surface so as to form a circular shape. At the same time when the punched holes 13C are formed, burrs 15C are formed on the back surface of the damping steel sheet 10C. Although the number of burrs 15C is two in the figure, the number is not particularly limited.

A method for assembling the sound insulation structure according to the third embodiment will be described. This damping steel sheet 10C is preferably applied to a wooden building as shown below. First, a damping steel plate 10C is placed on a top surface of a structural member 1 downstairs in a wooden building at a desired position with its pair of burrs 15C, 15C formed facing downward. Then, the damping steel plate 10C is lightly hit from above with a mallet or a mallet. Then, the pair of burrs 15C, 15C of the vibration damping steel plate 10C enter the downstairs structural member 1 of the wooden building, so that the damping steel plate 10C can be easily attached to the structural member 1 downstairs. By repeating the above operation, a plurality of vibration damping steel plates 10C are attached to the upper surface of the structural member 1 downstairs along the longitudinal direction. As described above, there is an effect that any of the plurality of damping steel plates 10C can be accurately positioned and easily attached to the structural member 1 downstairs of the wooden building. Further, even if the structural member 2 on the floor is placed on the upper surface of the damping steel plate 10C and the structural member 2 on the floor is displaced thereafter, the damping steel plate 10C can be moved by the burrs 15C. Therefore, there is an effect that the position is not shifted because it is securely fixed.

According to the sound insulation structure of the third embodiment as described above, the sound on the floor is sound-insulated by the damping steel plate 10C, and the vibration is attenuated. This has the effect of suppressing transmission.

FIG. 6 is a single view of the damping steel sheet 10 D, in which (A) is a perspective view seen from below and (B) is a plan view. As shown in the figure, the damping steel plate 10D of the sound insulation structure of the fourth embodiment has a pair of burrs 15D, 15D formed on the back surface. The punched hole 13D of the damping steel plate 10D is different from the punched hole 13C of the damped steel plate 10C of the third embodiment, and the punched hole 13D has a square shape. In order to form the punched holes 13D, a punch having a sharp-pointed quadrangular pyramid may be used to penetrate the damping steel plate 10D so as to penetrate the front and back surfaces thereof. Then, the burr 15D of the damping steel plate 10D has a sharply sharpened tip with four-sided cracks, so that the burr 15D can easily bite into the structural member 1 downstairs of the wooden building. For this reason, the damping steel plate 10D can be more easily attached to the structural member 1 downstairs of the wooden building, and there is an effect that the position is not shifted. The shape of the punched hole 13D may be not only a quadrangle but also a polygon such as a triangle and a pentagon, and it is preferable that the tip of the burr 15D is sharply pointed.

According to the sound insulation structure of the fourth embodiment as described above, the sound on the floor is insulated by the damping steel plate 10D, and the vibration is attenuated. This has the effect of suppressing transmission.

FIG. 7 is a single view of the damping steel sheet 10 E, in which (A) is a perspective view seen from below and (B) is a front view. As shown in the drawing, a damping steel plate 10E having a sound insulation structure according to a fifth embodiment is obtained by punching a punched hole 13E from the back surface of the damping steel plate 10B toward the inside to form a burr 15E. . In this case, the damping steel plate 10E can be easily attached to the structural member 2 upstairs in the wooden building, and further, there is an effect that the position does not shift. In addition, the punched hole 13E may be a polygon such as a round shape or a square shape, and various shapes can be adopted. It is preferable that the tip of the burr 15E is sharp. According to the sound insulation structure of the fifth embodiment as described above, the sound on the floor is insulated by the damping steel sheet 10E and its vibration is attenuated, so that the sound on the floor is transmitted to the downstairs as noise. This has the effect of being able to be suppressed.

[0021]

[Effect of the invention]

 According to the sound insulation structure of the first aspect, in a wooden building, a steel-framed building, or the like, the sound on the upper floor is attenuated by the damping steel plate, and the transmission of the sound to the lower floor as noise can be suppressed. According to the sound insulation structure of the second aspect, in a wooden building, a steel-framed building, or the like, the sound on the upper floor is attenuated by the damping steel plate, so that the transmission of the sound as noise to the lower floor can be suppressed, and the cost is low. According to the sound insulation structure of the third aspect, in a wooden building, a steel-framed building, or the like, the sound on the floor is attenuated by the damping steel plate, so that the sound is not transmitted to the floor down as noise, and the cost is low. According to the sound insulation structure of the fourth aspect, in a wooden building, a steel frame building, or the like, it can be fitted to a structural member below or above the floor, so that positioning is easy. According to the sound insulation structure of the fifth aspect, since the burr can be inserted into the structural member of the wooden building downstairs or on the floor, it can be easily attached and does not shift. According to the sound insulation structure of the sixth aspect, the burr can be easily inserted into the structural member on the lower or upper floor of the wooden building, so that the burr can be more easily attached and the position does not shift.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a sound insulation structure according to a first embodiment.

FIG. 2 is a schematic diagram of a damping steel plate 10A.

FIG. 3 is a schematic perspective view of a sound insulation structure according to a second embodiment.

FIG. 4 is a schematic perspective view of a sound insulation structure according to a third embodiment.

FIG. 5 is a single view of a damping steel sheet 10C having a sound insulation structure according to a third embodiment, where (A) is a perspective view seen from below and (B) is a side view.

FIG. 6 is a single view of a damping steel plate 10D having a sound insulation structure according to a fourth embodiment, where (A) is a perspective view seen from below and (B) is a plan view.

FIG. 7 is a single view of a damping steel sheet 10E having a sound insulation structure according to a fifth embodiment, wherein (A) is a perspective view seen from below, and (B) is a front view.

[Explanation of symbols]

 1st floor structural member 2nd floor structural member 10A damping steel sheet 10B damping steel sheet 10C damping steel sheet 10D damping steel sheet 10E damping steel sheet 13C punching hole 13D punching hole 13E punching hole 15C burr 15D burr 15E burr

Claims (6)

[Utility model registration claims] 1. A sound insulation structure wherein a damping steel plate is sandwiched between a structural member on a lower floor and a structural member on a higher floor. 2. A sound insulation structure wherein a damping steel plate is partially sandwiched between a structural member on a lower floor and a structural member on a floor. 3. The sound insulation structure according to claim 1, wherein said damping steel plate is a flat plate. 4. The sound insulation structure according to claim 1, wherein said damping steel plate is bent on both left and right sides and formed in a U-shape in cross section. 5. The sound insulation structure according to claim 1, wherein a burr is formed on a back surface of the damping steel sheet. 6. The sound insulation structure according to claim 5, wherein a tip of said burr has a pointed shape.