JP2860334B2 - Soundproof door frame - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to a room, for example, a sound machine room, which is inconvenient for external noise to enter inside or for internal sound to leak outside. Generally, a soundproof door is used for an entrance such as a door. The present invention relates to a soundproof door frame used when attaching the soundproof door to an opening of the doorway.

(Prior Art) Conventionally, in order to use a soundproof door for an entrance, a door frame made of a suitable material, such as wood or steel, is fitted into the opening so that the soundproof door can be in close contact with the opening of the entrance, and the door is closed. It was attached through the frame.

(Problems to be Solved by the Invention) The conventional method of attaching a soundproof door has a drawback that noise enters or leaks through a small gap between the door frame and the soundproof door or through the door frame itself. Was.

(Means for Solving the Problems) The present invention has been made by paying attention to such a problem in the related art, and has a structure in which a packing which is completely in close contact with a soundproof door is maintained and a leakage from a door frame itself is performed. It is an object of the present invention to solve the above-mentioned problem by providing a soundproof door frame having a structure capable of holding down as much as possible.

The present invention provides a reinforcing frame provided with a projecting portion protruding inward in the vicinity of the center, and both flange portions extending from both ends of the projecting portion to both sides with a predetermined width, and having the ends bent inward. A concave portion protruding inward in the vicinity of the center, a locking portion connected to an upper portion of the concave portion for holding a packing, and extending from both ends of the concave portion to both sides with a predetermined width, and the tip thereof outward. A decorative inner frame provided with both bent outer flanges; a soundproof door formed by fixing the outer groove to the protrusion and the outer flange to the both flanges. It is a frame.

(Operation) Since the soundproof door frame has the packing held by the locking portion in close contact with the soundproof door and is completely sealed, and further has the holding member in close contact with the reinforcing frame, and the gap is filled with a sound absorbing material. The sound does not leak in and out through the gap. In addition, the space is formed by sandwiching the ridge, the length of the material in the thickness direction is increased, and the ridge is filled with a sound absorbing material. Therefore, the level of sound transmitted from the used materials is reduced as much as possible.

(Embodiment) The present invention will be described in detail below based on one embodiment shown in FIGS. 1 is a cross-sectional view of a rectangular trough-shaped ridge 3 which is filled with a sound absorbing material 2 such as neoprene rubber or a mixture of neoprene rubber and lead powder in the vicinity of the center, and Both ends of both bottoms 4, 4 'extending to the required width on both sides from both ends of the part 3 are provided with both flanges 5, 5' formed by bending inward at right angles at the required width. A rectangular trough-shaped reinforcing frame 6 having: a rectangular trough-shaped grooved recess 7 formed near the center so as to closely fit around the head of the groove 3; At the side where the soundproof door 8 is attached, the end of the upper part 9 is folded to project straight outward, and the tip is bent in a U-shape to form the soundproof door 8.
A rectangular gutter-shaped locking portion 11 for holding a packing 10 opened outwardly on the side, and a locking portion 11 and a
At both ends forming the lower portions 12, 12 'extending at a required width in parallel with the bottom portions 4, 4' from the front end of the bottom, there are provided strip projections 13, 13 'bent in a square shape (the soundproof door 8 is attached). The lower part 12 ″ on the indoor side where the garment is not worn is not parallel to the bottom part 4 ′, but directly connects the end of the upper part 9 of the groove recess 7 and the ridge projection 13 ′). A rectangular frame-shaped decorative inner frame 15 having a required width and externally fixed to the reinforcing frame 6 provided with both outer flange portions 14 and 14 'formed so as to closely fit to the outer peripheral portions 5 and 5'. The soundproof door frame is made by pressing a metal plate of steel, aluminum, etc. having an appropriate thickness and welding the necessary parts, or by casting aluminum, an aluminum alloy, etc., and welding the necessary parts. .

The soundproof door frame 1 is fitted into the opening of the entrance formed by the pillars 16 and the upper frame 17 on both sides with the locking portion 11 on the outside.・ After inserting the splint 18 in the gap between the right and upper bottoms 4 and stabilizing them, each bottom 4
Through each of the splints 18 …… both pillars 16, 16 and the upper frame 1
7 is fixed with screws 19, and the gap between the bottom portion 4 'of the reinforcing frame 6 without the splint 18 and the two pillars 16, 16 and the upper frame 17 is filled with a rock wool 20 having a sound absorbing function, and the like. The makeup frames 21, 21 'abutting the left, right, and upper projections 3, 3'
It is fixed by an appropriate method to the decorative panels 23 stretched on the surfaces of the upper frame 16, the upper frame 17, and the wall 22, and is attached to the opening of the entrance.
Reference numeral 24 denotes a cap which is used for fixing the bottom portion 4 of the reinforcing frame 6 to the pillar 16 and the upper frame 17 with screws 19 and shields a hole provided in the lower portion 12 of the inner decorative frame 15.

After fitting the packing 10 made of synthetic rubber or the like to the locking portion 11 of the soundproof door frame 1, the soundproof door 8 is provided with a hinge 25 attached by making a cut in one side wall in the lateral direction of the soundproof door 8. It is fixed to the lower part 12 on the right side of the soundproof door frame 1 with screws or the like, and is attached to the soundproof door frame 1.

In this case, the soundproof door frame 1 closes the packing 10 held by the locking portion 11 to the soundproof door 8 to completely seal it, and furthermore, the reinforcing frame 6 between the pillar 16 and the upper frame 17 which are holding members. The sound is not leaked in and out through the gap because the gap between the bottom 4 'and the bottom 4' are filled with rock wool 20 having a sound absorbing function. A space 26 is formed to sandwich the material, the length of the material in the thickness direction is lengthened, and the sound-absorbing material 2 is filled in the projecting portion 3, so that the level of sound transmitted from the used material can be reduced. As low as possible.

In the above embodiment, both lower portions 12, 1 of the inner makeup frame 15 are provided.
At both ends of 2 ', strip projections 13 and 13' are provided to facilitate the work of attaching the decorative frame 21, but these strip projections 13 and 13 'are eliminated and the tips of both lower parts 12 and 12' are removed. After slightly protruding,
The outer flanges 14 and 14 'may be simply attached to the flanges 5 and 5' and fixed.

Further, a rectangular gutter-shaped locking portion 11 which is open to the outside is provided so as to be connected to the upper portion 9 on the side of the inner concave portion 15 of the inner concave portion 15 on the side where the soundproof door 8 is mounted. Instead of 11, the lower portion 12 may be formed into a shape a ′ shown by a dashed line in FIG.

(Effects of the Invention) The present invention has the above-described configuration, and has the following effects.

(1) Since the soundproof door and the surrounding attachment members are completely closed to prevent sound from leaking and considerably prevent propagation from the frame itself, an extremely high soundproofing effect is exhibited.

(2) Since the structure is relatively simple, it is easy to manufacture and can be provided to consumers at low cost.

(3) The preceding two items, combined with an increase in demand, contribute to increasing corporate profits.

[Brief description of the drawings]

1 is a front view, FIG. 2 is a rear view, FIG. 3 is an AA sectional view, and FIG. 4 is a BB sectional view. 1 ... Soundproof door frame, 2 ... Sound absorbing material, 3 ... Strip, 5,5 '
... flange, 6 ... reinforcement frame, 7 ... grooved recess, 8 ... soundproof door, 9 ... upper part, 10 ... packing, 11 ... locking part, 1
3, 13 ': Strip projection, 14, 14': Outer collar, 15: Inner frame.

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E06B 3/36 E06B 5/20 E06B 7/22 E06B 1/52

Claims (5)

(57) [Claims] 1. A reinforcing frame provided with a projecting portion protruding inward near the center, and both flange portions extending from both ends of the projecting portion to both sides with a predetermined width and having the ends bent inward. A concave portion protruding inward near the center, a locking portion connected to the upper portion of the concave portion for holding a packing, extending from both ends of the concave portion to both sides with a predetermined width, and the tip thereof outward. A decorative inner frame provided with both bent outer flanges; a soundproofing formed by externally fitting and fixing the grooved recesses to the ribs and the outer flanges to the flanges. Door frame. 2. An engaging portion formed by folding an upper end portion of each recess and projecting outwardly, and further bending the tip end thereof in a U-shape. Range 1
The soundproof door frame described in the item. 3. The soundproof door frame according to claim 1, further comprising a locking portion which folds an upper end of the grooved recess and projects straight outward. 4. A soundproof door frame according to any one of claims 1 to 3, wherein a rectangular strip projection is provided at a base of both outer flanges. 5. The soundproof door frame according to any one of claims 1 to 4, wherein a sound absorbing material is filled in the inside of the projecting portion.