JP6726013B2 - Soundproof door - Google Patents

Description

The present invention relates to a soundproof door that is openably and closably installed at a doorway of a soundproof room for practicing musical instruments, a performance hall, or the like.

Conventionally, as this type of soundproof door, for example, one described in Patent Document 1 is known. This soundproof door is rotatably attached via a hinge to a door frame provided in the shape of a frame at the periphery of the opening that is the entrance and exit of the user, and to one of the left and right sides of the door frame. Provided with a door panel, a magnetic door stopper attached to the other left and right side portions of the door frame so as to project inward, and an iron plate attached to the tip end portion of the door panel (end portion on the opposite side to the hinge). ing.

The magnet door stopper is made of magnet rubber and is attached so as to extend in the vertical direction over the entire side portion of the door frame. In addition, the iron plate extends in the vertical direction at the edge of the front end of the surface that comes into contact with the magnet door stop when the door panel is closed (hereinafter referred to as the "door contact surface" in this section), and the door contact surface. It is buried flush with and is screwed to the door panel.

In the soundproof door thus configured, when the door panel is closed, the iron plate on the front end side is attracted to the magnet door contact, and the door contact surface of the door panel is brought into close contact with the magnet door contact. As a result, when the door panel is closed, the front end side of the door panel, that is, one of the left and right ends, is sealed with respect to the door frame, thereby reducing sound leakage from the one side of the door panel.

JP, 8-184243, A

In the above soundproof door, with respect to the door frame, although the front end side of the door panel is sealed, the hinge side of the door panel, the upper end side and the lower end side are not sealed, and due to sound leakage from those three sides, There is a possibility that sufficient soundproofing effect cannot be obtained. Further, since the iron plate attached to the door panel is attached to the door contact surface of the door panel in a state of being exposed to the outside, there is a problem in that the door panel has a bad appearance and the appearance as a soundproof door is impaired.

The present invention has been made in order to solve the above problems, and provides a soundproof door which can enhance the soundproofing effect as compared with the conventional one, and which has a good appearance and a good appearance. With the goal.

In order to achieve the above-mentioned object, the invention according to claim 1 has a left vertical frame and a right vertical frame that are arranged at intervals in the left-right direction, and between upper end portions and lower end portions of these vertical frames. A door frame having a horizontal frame connecting at least one, one of the left vertical frame and the right vertical frame, a door panel openably and closably attached via a hinge, to the left vertical frame, the right vertical frame, and the horizontal frame, At least three door stops, which are respectively provided so as to extend along the entire length of the door panel, and contact with the left and right sides of one surface of the door panel and at least one of the upper and lower edges when the door panel is closed. , And at least three magnet packings, each of which is attached to each of the at least three doorstops so as to extend along the entire doorstops, and each of which has a built-in magnet. And a decorative sheet is attached to the entire surface of the magnetic sheet.

According to this configuration, the door panel is openably and closably attached to one of the left vertical frame and the right vertical frame of the door frame via the hinge. Further, at least three door stops are provided on the left vertical frame, the right vertical frame, and at least one of the upper and lower horizontal frames of the door frame so as to extend along the entire length and at least three of these, respectively. At least three magnet packings are attached to the door stop so as to extend along and throughout them. On the other hand, the door panel is provided with a magnetic sheet having magnetism over its entire surface on one surface (hereinafter, referred to as "door contact surface" in this section) that comes into contact with the door contact when closed. When the door panel is closed, the magnetic sheet is attracted by the magnets of at least three magnet packings, and the door contact surface of the door panel is in close contact with all the magnet packings. As a result, at the time of closing the door panel, at least three sides on the left and right ends and the upper end side and/or the lower end side of the door panel are sealed from the door frame. As a result, it is possible to prevent sound leakage from at least the above three sides of the door panel and significantly enhance the soundproof effect as compared with the conventional case.

A decorative sheet is attached to the entire surface of the magnetic sheet provided on the door-contact surface of the door panel. With this, unlike the conventional soundproof door in which the iron plate is exposed on the door-contact surface of the door panel, the iron plate is not visible, and the appearance of the door panel can be improved and a neat and good appearance can be obtained. ..

According to a second aspect of the present invention, in the soundproof door according to the first aspect, the magnetic sheet is formed by adding iron powder to a sheet body made of a predetermined type of synthetic resin.

According to this structure, by adopting a sheet constituted by adding iron powder to the sheet body made of a predetermined type of synthetic resin as the magnetic sheet, the door panel door is secured while ensuring easy handling. The magnetic sheet can be easily attached to the door panel by adhering it to the door contact surface side according to the shape and size of the contact surface.

According to a third aspect of the present invention, in the soundproof door according to the first or second aspect , the magnet packing is made of a synthetic resin of a predetermined type and includes a packing main body having a cylindrical housing portion, and the magnet is housed in the housing portion. It is characterized by being.

According to this structure, the packing main body of the magnet packing is made of a synthetic resin of a predetermined type, and has a cylindrical housing portion, and the magnet is housed in the housing portion. In the magnet packing thus configured, when the door panel is closed, the packing main body made of synthetic resin hits the door panel and the hard magnet does not directly hit the door panel. Therefore, even if the door panel is repeatedly opened and closed and the door panel repeatedly hits the magnet packing, the decorative sheet is hardly damaged, and the good appearance of the door panel can be maintained for a long period of time.

It is a figure which shows the soundproof door by 1st Embodiment of this invention, (a) shows the state with the door panel closed, (b) shows the state with the door panel opened. It is sectional drawing which shows the state which cut the soundproof door of FIG. 1 (a) along the AA line. FIG. 3 is a sectional view similar to FIG. 2, showing a soundproof door according to a second embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a soundproof door according to a first embodiment of the present invention. The soundproof door 1 is a hinged door type provided at the entrance of a soundproof room for practicing musical instruments.

As shown in FIG. 1, the soundproof door 1 includes a door frame 2 provided in a frame shape at a peripheral portion of a doorway, and a plurality of (three in this embodiment) hinges on a right vertical frame of the door frame 2. A door panel 4 that is rotatably attached via 3 and opens and closes the inside of the door frame 2.

The door frame 2 is provided with left and right vertical frames (hereinafter, appropriately referred to as “left vertical frame 2a” and “right vertical frame 2b”) that are arranged at a predetermined distance in the left-right direction and extend for a predetermined length in the vertical direction. It has upper and lower horizontal frames (hereinafter, appropriately referred to as “upper horizontal frame 2c” and “lower horizontal frame 2d”) that connect the upper end portions and the lower end portions, respectively, and these vertical frames 2a. The door frame 2 is formed in a vertically long rectangular frame shape by the horizontal frames 2b and 2c and 2d. Further, in the left vertical frame 2a, the right vertical frame 2b, and the upper horizontal frame 2c of the door frame 2, when the door panel 4 is closed, the surface opposite to the opening side when the door panel 4 is opened (hereinafter A door stop 5 with which the "door contact surface 4A" abuts is provided.

More specifically, as shown in FIG. 1(b) and FIG. 2, at a predetermined position inside the left vertical frame 2a and the right vertical frame 2b, respectively, in a state of being assembled to the corresponding vertical frames 2a and 2b, respectively. , A door stop (hereinafter appropriately referred to as "left door contact 5a", "right door contact 5b") extending along the lengthwise direction (vertical direction in FIG. 1, front and back direction in FIG. 2) and throughout is provided. ing. Although not shown in detail, the upper horizontal frame 2c also has a door contact 5c configured in the same manner as the left and right door contact 5a, 5b (hereinafter, appropriately referred to as "upper door contact 5c"). Is provided so as to extend along the entire length direction of the.

Further, three magnet packings 6 are attached to the door panel 4 side of the left door contact 5a, the right door contact 5b, and the upper door contact 5c, respectively. Each magnet packing 6 is composed of a packing main body 7 and a magnet 8 housed inside the packing main body 7.

The packing main body 7 is made of a predetermined type of synthetic resin (for example, rubber or soft vinyl chloride), extends along the entire length of the door stop 5 and has a thin hollow predetermined cross section. Specifically, as shown in FIG. 2, the packing main body 7 is formed in a substantially U-shape, and is connected to a mounting portion 7a attached to the door stop 5 and a front side of the mounting portion 7a, and has a horizontally long elliptical shape. And a magnet accommodating portion 7c which is connected to the front side of the flexible portion 7b and has a laterally long rectangular ring shape and which accommodates the magnet 8 inside. It consists of and.

On the other hand, the magnet 8 is formed in a rod shape having substantially the same length as the packing body 7 in which the magnet 8 is incorporated, and has a laterally long rectangular cross section that is substantially the same as the inside of the magnet housing portion 7c. Therefore, the magnet 8 extends along the entire length of the packing body 7 and is entirely housed in the magnet housing portion 7c, so that the entire circumferential surface is covered with the synthetic resin.

The hinge 3 has two hinge plates 3a and 3a, and a connecting shaft 3b that rotatably connects them. One of the two hinge plates 3a and 3a is screwed to a predetermined position on the right vertical frame 2b, and the other is screwed to a predetermined position on the right end surface of the door panel 4.

The door panel 4 includes a panel body 11, front and back plates 12 and 12 made of MDF or the like attached to the front and back surfaces of the panel main body 11, and a magnetic sheet 13 attached to the front plate 12 on the door contact surface 4A side. , And the decorative sheet 14 attached to the entire surface of the magnetic sheet 13.

The panel body 11 is formed in a thick plate shape having predetermined vertical and horizontal dimensions and thickness. It is possible to adopt various configurations as the panel body 11. For example, it is possible to employ one in which the upper, lower, left, and right sides are formed into a frame shape with square members and plate members are attached to the front and back surfaces thereof, or a single material (for example, urethane foam) is used.

The magnetic sheet 13 is made of a predetermined type of synthetic resin (for example, chlorinated polyethylene), and has a predetermined thickness (for example, 0.5 mm), and iron powder is added to the sheet body at a predetermined content rate so that the magnetic property is improved. Is configured to have.

On the other hand, the decorative sheet 14 is made of a predetermined type of synthetic resin (for example, olefin) and has a predetermined thickness (for example, 0.5 mm).

In the soundproof door 1 configured as described above, when the door panel 4 rotates to the door stop 5 side and is closed, the magnetic sheet 13 on the door contact surface 4A side has the three magnet packings 6 on the left and right sides and the upper side. Are attracted to the respective magnets 8. As a result, the door-contacting surface 4A of the door panel 4 is in close contact with all the magnet packings 6. As a result, as shown in FIG. 1A, when the door panel 4 is closed, the door frame 2 is sealed on the left and right end sides and the upper end side of the door panel 4. As a result, sound leakage from the above three sides of the door panel 4 can be prevented, and the soundproofing effect can be significantly enhanced compared to the conventional case.

A decorative sheet 14 is attached to the entire surface of the magnetic sheet 13 on the door-contact surface 4A side of the door panel 4. As a result, unlike the conventional soundproof door in which the iron plate is exposed on the door-contact surface of the door panel, the iron plate is not visible, the appearance of the door panel 4 can be improved, and a neat and good appearance can be obtained. it can.

Furthermore, when the door panel 4 is closed, the packing main body 7 made of synthetic resin hits the door panel 4 and the hard magnet 8 does not directly hit. Therefore, even if the door panel 4 is repeatedly opened and closed and the door panel 4 repeatedly hits the magnet packing 6, the decorative sheet 14 is hardly damaged, and a good appearance of the door panel 4 can be maintained for a long period of time. In addition, the door panel 4 can attract a magnet to any place on the door-contact surface 4A, so that a music sheet, a note-written paper, a leaflet, etc. can be used on the door-contact surface 4A by using the magnet. You can easily keep it in place.

FIG. 3 shows a second embodiment of the present invention. In soundproof door 1 of the present embodiment, since the door panel 4 other than configuration is the same as the first embodiment described above, in the following description, the same reference numerals denote the same components as the first embodiment, the present The structure of the door panel 4 of the embodiment will be mainly described.

As shown in FIG. 3, in the door panel 4 of the soundproof door 1 of the second embodiment, surface plates 12 made of MDF or the like are attached to the front and back surfaces of the panel body 11 similar to the first embodiment. Then, on the front surface plate 12 on the side of the door contact surface 4A, three thin and long thin plate-shaped (for example , 0.7 mm thick ) steel plates 15 (magnetic plates) 15 (magnetic plate 2 in FIG. Only two steel plates are shown).

Specifically, the left and right edges of the surface plate 12 on the door contact surface 4A side have predetermined widths and depths substantially the same as the width dimension and thickness of the steel plate 15, respectively. Housing recesses 12a, 12a are formed extending all over. Then, the steel plate 15 is housed in each housing recess 12 a so as to extend over the entire housing recess 12 a so as to be flush with the surface plate 12. Although not shown, the upper edge of the surface plate 12 on the side of the door contact surface 4A has the same width and depth as the above-mentioned housing recess 12a, and the housing recess 12a extends over the entire lateral direction of the door panel 4. Is formed, and the steel plate 15 is housed in the housing recess 12a so as to extend over the entire surface thereof so as to be flush with the surface plate 12. In addition, each steel plate 15 is accommodated in the accommodation recess 12 a in a state of being attached by a double-sided tape or the like.

The same decorative sheet 14 as in the first embodiment is attached to the entire surface of the face plate 12 on the door contact surface 4A side of the door panel 4 in a state of covering the above three steel plates 15.

When the door panel 4 configured as described above is closed, the three steel plates 15 on the left and right sides and on the upper side are attracted to the magnets 8 of the three magnet packings 6, respectively, and the door-contact surface 4A of the door panel 4 covers all the magnet packings. Adhere to 6. Therefore, as in the first embodiment, when the door panel 4 is closed, the door frame 2 is sealed on the left and right end sides and the upper end side of the door panel 4, thereby preventing sound leakage from the three sides of the door panel 4. However, the soundproofing effect can be significantly enhanced compared to the conventional case.

Further, the door panel 4 is provided with a decorative sheet 14 over the entire door contact surface 4A while covering all the steel plates 15. As a result, none of the steel plates 15 on the side of the door contact surface 4A can be seen, and the appearance of the door panel 4 can be improved and a neat and good appearance can be obtained as in the first embodiment. In addition, the good appearance of the door panel 4 can be maintained for a long period of time.

In the first and second embodiments described above, the lower horizontal frame 2d of the door frame 2 may be omitted. In this case, it is possible to eliminate the step at the entrance and exit of the soundproof room. As a result, the user of the soundproof room does not trip over when going in and out, and can easily go in and out with a wheelchair.

The present invention is not limited to the above-described respective embodiments and can be carried out in various modes. For example, in the embodiment, the door stop 5 and the magnet packing 6 are provided in the left vertical frame 2a, the right vertical frame 2b, and the upper horizontal frame 2c of the door frame 2, respectively. It is also possible to provide it on the horizontal frame 2d.

Further, the door stop 5 and the magnet packing 6 can be provided on both the upper horizontal frame 2c and the lower horizontal frame 2d. In this case, when the door panel 4 is closed, the door frame 2 can be hermetically sealed on the left and right end sides and the upper and lower end sides of the door panel 4, and the soundproofing effect can be further enhanced.

In the embodiment, the soundproof door of the present invention has been described as applied to the entrance and exit of a soundproof room for practicing musical instruments, but the present invention is not limited to this, and the soundproof effect such as entrance and exit of a performance hall, for example. Can be applied to various places where is required.

Further, the detailed configuration of the door frame 2, the door panel 4, the door stop 5, the magnet packing 6, the magnet 8, the panel body 11, the surface plate 12, the magnetic sheet 13, the decorative sheet 14, and the steel plate 15 described in the embodiment, It is merely an example, and can be changed as appropriate within the scope of the spirit of the present invention.

1 Soundproof door 2 Door frame 2a Left vertical frame 2b Right vertical frame 2c Upper horizontal frame 2d Lower horizontal frame 3 Hinge 4 Door panel 4A Door contact surface 5 Door contact 5a Left door contact 5b Right door contact 5c Upper door 6 Magnet packing 7 Packing body 7a Mounting part 7b Flexible part 7c Magnet accommodating part 8 Magnet 11 Panel body 12 Surface plate 13 Magnetic sheet 14 Decorative sheet 15 Steel plate (magnetic plate)

Claims (3)

A door frame having a left vertical frame and a right vertical frame arranged at a distance from each other in the left-right direction, and a horizontal frame connecting at least one of upper ends and lower ends of these vertical frames,
A door panel attached to one of the left vertical frame and the right vertical frame so as to be openable and closable via a hinge,
The left vertical frame, the right vertical frame, and the horizontal frame are respectively provided so as to extend along the entire length of the left vertical frame, the right vertical frame, and the horizontal frame, and when the door panel is closed, both left and right sides of one surface of the door panel and upper and lower sides thereof. At least three door stops with which at least one edge of
At least three magnet packings, each of which is attached to the at least three doorstops so as to extend along the entire doorstops and has a built-in magnet,
Equipped with
A soundproof door characterized in that a magnetic sheet having magnetism is provided over the entire surface of the one side of the door panel, and a decorative sheet is stuck on the entire surface of the magnetic sheet. The soundproof door according to claim 1, wherein the magnetic sheet is formed by adding iron powder to a sheet body made of a predetermined type of synthetic resin. The soundproofing according to claim 1 or 2, wherein the magnet packing is made of a synthetic resin of a predetermined type and includes a packing main body having a cylindrical housing portion, and the magnet is housed in the housing portion. door.

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