JPS639755Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a window frame.

Conventionally, for example, in a concrete wall on the open hallway side of an apartment complex, ventilation holes are drilled in several places at the top and bottom, and ventilation sleeves are attached to these holes. However, it is not easy to create ventilation holes in a concrete wall, and there is also the inconvenience that outside noise can directly enter the room through the ventilation sleeve, reducing the effectiveness of the soundproofing.

An object of the present invention is to provide a window frame that has a high sound insulation effect and does not require complicated construction to provide ventilation holes.

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

As shown in Figures 1 and 2, the inside of the vertical frame 1a of the aluminum sash 1, which is the window frame, is a hollow part 2, and the outside ventilation is provided between the hollow part and the upper part of the outer and inner wall surfaces of the vertical frame. A hole 3 and an inner ventilation hole 4 are provided. In the illustrated example, the ventilation holes 3 and 4 are provided in opposing positions. The cavity 2 is partitioned by a sound insulating plate 5 into two chambers: a first chamber 2a on the side of the ventilation hole 3 and a second chamber 2b on the side of the ventilation hole 4. Both ends of the sound insulating plate 5 are fixed to the side walls of the vertical frame 1a, and the positional relationship with the inner wall surface (or outer wall surface) is such that the sound insulating plate 5 has an angle that intersects with the inner wall in a planar cross section, that is, it is arranged obliquely. A through hole 6 serving as a cavity is provided in the lower part of the sound insulating plate 5. This through hole 6 is connected to the first chamber 2a and the second chamber.
This is for communicating with the room 2b, and for muffling the sound entering from the outside ventilation hole 3 by detouring it in a U-shape toward the inside ventilation hole 4 within the cavity 2.

Note that the gap is not limited to the above-mentioned through hole 6, but for example, as shown in FIG. may be detoured.

In order to enhance the sound insulation effect, a sound deadening cover 8 may be provided on the outer wall surface of the vertical frame 1a, covering the outside ventilation hole 3 and having an opening facing downward, as shown in FIG. Glass wool may be attached to the inner surface of the sound deadening cover 8, if necessary.

In FIG. 1, 9 is a partition, and 10 is a glass shoji.

With the above configuration, outdoor sound enters the first chamber 2a of the cavity from the outside ventilation hole 3, passes through the lower ventilation hole 6, and reaches the second chamber 2b, as shown in FIG. It reaches the inner ventilation hole 4. This sound diversion causes the sound to be muffled or made very quiet.

As described above, according to the present invention, the sound insulation effect can be enhanced because the sound is detoured over a long distance inside the hollow part of the vertical frame, and since the ventilation hole is provided in the vertical frame, the ventilation hole is not provided in the vertical frame. No complicated construction work is required for installation. The sound insulating plates are arranged in a direction perpendicular to the inner wall or the outer wall, and both ends are fixed to the side walls, which has the effect of reinforcing the vertical frame and smoothing the flow of air into the cavity.

[Brief explanation of the drawing]

Figure 1 is a sectional view of the main part, Figure 2 is an explanatory diagram showing the relationship between ventilation holes and through holes, Figure 3 is an explanatory diagram showing another example of the cavity, and Figure 4 is another example. It is an explanatory diagram showing an example. 1... Window frame, 2... Cavity, 3... Outer ventilation hole, 4... Inner ventilation hole, 5, 5a... Sound insulation board, 6
...Through hole, 7...Gap.

Claims (1)

[Scope of Claim for Utility Model Registration] An inner ventilation hole and an outer ventilation hole provided on both the inner and outer walls of one end of the vertical frame with a cavity in between, and the interior of the cavity is partitioned into the outer ventilation hole side and the inner ventilation hole side. a sound insulating plate; and a cavity provided inside the other end of the vertical frame, which communicates both of the ventilation holes and detours sound entering from the outer ventilation hole to the inner ventilation hole via the sound insulating plate within the cavity. A window frame, characterized in that the sound insulating board has both ends fixed to the side walls of the vertical frame and is arranged at an angle intersecting the inner and outer walls with respect to the inner and outer walls in a plane cross section. .