JPH0338326Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a sound insulating wall structure mainly used in partitions in buildings.

Recently, light iron hollow walls have been used instead of conventional concrete walls or concrete block walls for reasons such as reducing the weight of the entire building, shortening the construction period, simplifying construction, reducing costs, and providing flexibility in floor plans. Partition walls are increasingly being installed.

However, although this light railway hollow space partition wall has various advantages such as its light weight and ease of construction, it has a problem with sound insulation, such as in hotels, hospitals, etc.
There were many problems in places where sound insulation was required, such as offices for executives, conference rooms, and apartment complexes.

For example, at construction sites, slabs that are supposed to be smooth in drawings often have irregularities. In that case, the members, runners, and studs that come into contact with the slab do not completely contact the slab, creating an acoustic gap.
This had the disadvantage of making it easier for sound to pass through and deteriorating the sound insulation properties. In addition, external forces in the right angle direction are applied to the runners due to furniture being moved, kicked by feet, etc., which may deform the runners and cause them to float up from the slab.

This invention was devised to solve the above-mentioned conventional problems, and will be explained below based on the illustrated embodiment.

Figure 1 is a vertical cross-sectional view of a light railway hollow space partition wall with boards pasted on both sides.
Runner with lightweight studs for fixing to walls, ceilings or the bottom of slabs.

The runner 1 is formed into a substantially groove shape, and is provided with a protrusion 3 having a semi-circular tip at the center of the bottom part 2 and having some elasticity. Both sides of 2 are bent at right angles to form flanges 4, 4. The bottom part 2 has expander-like meshes 5 formed over its entire surface, and the meshes 5 are provided with cut portions 6 at predetermined intervals.

Then, the concave groove 3a is filled with packing 7 made of an elastic material such as rubber, and this packing 7
is filled slightly protruding from the back surface of the runner.

The runner 1 is attached to the upper and lower slabs A and the wall B at the attachment position of the partition wall, with the bottom section 2 as a contact surface with the frame. In this case, they are fixed to the building frame with screws 9 via seat plates 8 in a so-called flat or staggered manner so that they are arranged alternately on both the left and right sides of the central protrusion. The seat plate 8 is a base piece 8a that comes into contact with the bottom part 2 of the runner 1.
, a hanging piece 8b that stands up from one side end of this base piece 8a and contacts the flange 4, and a protrusion 3 of the runner 1.
It consists of a side piece 8c having an arcuate cross section and abutting against the side piece 8c.

Studs 10 made of lightweight studs are attached at required intervals between the runners 1 attached to the upper and lower slabs A and A of the building frame. These studs 10 are installed so that they are arranged alternately on the left and right sides with the protrusion 3 of the runner 1 as the border, and are in contact with the end surfaces of each of the studs 10, and the board covers the entire center of the hollow inside the partition wall. A sound insulating soft sheet 11 is installed so as to be sagging in the same direction, and this soft sheet 11 is installed via the seat plate 8 with the screws 9.

Further, boards 12 are attached to the outer surfaces of both the left and right flanges 4, 4 of the runner 1, respectively, and a hollow part 13 is provided inside.

This invention has the configuration described above and has the following effects.

(1) A soft sheet is further placed inside the hollow wall to partition the hollow, so the wall has a simple structure with multiple hollow layers.

(2) Moreover, since the soft sheet is loosened and fixed inside the hollow space, and the space is partitioned through the soft sheet, the space is not partitioned by parallel planes, and the sound field in the space tends to be diffused. There is no risk of standing waves occurring at specific frequencies.

(3) Since a soft sheet is used, it is possible to eliminate the disadvantage that rigid boards generally have, where the degree of sound insulation decreases in the mid-to-high range due to the coincidence effect.

(4) Since the hollow space is filled with sound-absorbing material, sound enters the sound-absorbing material from all directions, increasing the sound-absorbing effect.

(5) Since the soft sheet is fixed to a portion of the stud, it is possible to limit the resonance when using a thin, lightweight stud that tends to resonate as a stud.

(6) Since it has a board-sheet-board configuration from one side surface to the other side surface, a lightweight stud with sufficient rigidity can be used, and its wall thickness is comparable to that of a hollow double wall made of conventional boards. It's not as thick as it is.

(7) The runner to be attached to the building structure has an elastic packing attached to the outer surface that contacts the building structure, and this packing is formed to press against the surface of the building structure. Since it is possible to eliminate the time 〓,
The sound insulation effect is further increased.

(8) The bottom of the liner, which is the surface that comes into contact with the building frame, is formed into an expander-like mesh, so it has cushioning properties against external forces from a direction perpendicular to the runner, and the central protrusion also has a Because it has cushioning properties against external forces, even if a strong external force is applied to the runner, the opposite side of the protrusion will not deform, and the runner will rise above the slab and create a gap between the runner and the slab. It is possible to maintain the sound insulation effect in a constant state without causing any noise.

[Brief explanation of the drawing]

The drawing shows an embodiment of this invention.
The figure is a partial vertical cross-sectional view, the second figure is a partial cross-sectional view, and the third figure is a partial cross-sectional view.
The figure is a partial perspective view of the runner. 1... Runner, 2... Bottom, 3... Protrusion, 4... Flange, 5... Mesh, 6... Cutting part, 7... Packing,
8... Seat board, 9... Screw, 10... Stud, 11... Soft sheet, 12... Board.

Claims (1)

[Scope of utility model registration request] In a sound insulating wall structure in which boards are pasted on the surface at intervals and a wall with a hollow part inside is fixed to the frame via a runner, a soft sheet is placed slack inside the hollow part in the same direction as the boards. In the hollow part, studs are arranged in a planar staggered manner, and the soft sheet is fixed to the studs, and the runner has a bottom part that is in contact with the structure, and the left and right edges of this bottom part are bent. It is formed in the shape of a groove with a flange, and a protrusion that continues in the longitudinal direction is provided at the center of the bottom, and the back side of this protrusion is a groove, and this groove is filled with elastic packing. The bottom surface has a sound insulating wall structure made of an expanded metal mesh.