Soundproof door

Abstract

To provide a sound insulation door, despite of its simple configuration, having excellent sound insulation performance.SOLUTION: A sound insulation door includes surface materials 5A and 5B, a four-side closed frame 6, and a filler material. The filler material includes a first portion formed only from a paper core 7 in the door thickness direction and second portions each of which is partially filled with a glass wool 8 in the door thickness direction and undergone a lamination of the glass wool 8 and paper core 7'. A plurality of second portions are filled at intervals in the door width direction, and in the interior space, a space excluding the portion filled with the plurality of second portions is filled with the first portion, and a reinforcing plate 9 is located between one side of the filling material in the door thickness direction and the first surface material 5A.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a soundproof door.

Background Art

[0002] In doors used in hotel rooms and the like, sound insulation is required. However, in lightweight doors for hotels, since lightweight doors with thin decorative steel plates as surface materials are used, how to ensure sound insulation performance becomes an issue.

[0003] It is known that the sound insulation performance of the door body can be improved by using a sound insulation material such as glass wool as a filling material filled in the internal space of the door body (Patent Document 1). However, since glass wool does not contribute to the strength of the door body, a configuration for ensuring the strength of the door body is necessary. In Patent Document 1, a core material formed in a cylindrical shape with a substantially rectangular cross-section formed by joining two bone members of the same shape is used.

Patent Document 1

Disclosure of the Invention

Problems to be Solved by the Invention

[0004] An object of the present invention is to provide a soundproof door having good sound insulation performance while having a simple configuration.

Means for Solving the Problems

[0005] The technical means adopted by the present invention to solve such problems are a surface material, a four-sided frame, a filling material filled in an internal space surrounded by the surface material and the four-sided frame, and the filling material includes a first portion formed only of a core material in the door thickness direction, and a second portion partially filled with a sound insulation material in the door thickness direction, where the sound insulation material and the core material are laminated, and in the internal space, the first portion is filled so as to surround the second portion. It is a soundproof door. There is one or more second parts. In one aspect, a plurality of second parts are filled at intervals in the door width direction and / or the door height direction, and in the internal space, except for the space where the plurality of second parts are filled, the first part is filled. The present invention can also be provided as a sliding door device including the above soundproof door. In addition, the above soundproof door can also be used for a hinged door.

[0006] In one aspect, a reinforcing plate is provided between one side of the filling material in the door thickness direction and the surface material. The reinforcing plate contributes to improving the strength and soundproof performance of the door body. In one aspect, the first surface of the reinforcing plate is adhered to the surface material, to the soundproof material of each of the plurality of second parts and the core material of the first part on the second surface of the reinforcing plate are adhered, the core material of the first part is adhered to the peripheral portion of the second surface of the reinforcing plate. By adhering the peripheral portion of the reinforcing plate to the core material (since the adhesive force of soundproof materials such as glass wool is relatively weak and there is a risk of inferior integrality), the rigidity of the door body is maintained.

[0007] In one aspect, in the second part, the soundproof material is located on one side in the door thickness direction, and the second part is laminated from one layer of soundproof material and one layer of core material. In one aspect, the second part is a laminated panel in which the soundproof material and the core material are laminated. By forming the second part from a plurality of laminated panels, the assembly workability of the door body can be improved.

[0008] In one aspect, the plurality of second parts are longitudinally long parts extending in the height direction of the door body when viewed from the front, and are filled in parallel at intervals in the width direction of the door body, the first part includes a longitudinally long part filled between the plurality of second parts. In one aspect, the vertically elongated portion of the first part is located at the central portion in the width direction of the door body. By arranging the first part (which is stronger than the second part) at the central portion in the width direction of the door body, the rigidity of the door body can be maintained.

[0009] In one aspect, the core material is a paper core, and the sound insulation material is glass wool. Note that the sound insulation material may be U rock wool.

Advantages of the Invention

[0010] In the present invention, while the strength of the door body (filling material) is ensured by the core material of the first part and the core material of the second part, the sound insulation performance of the door body can be ensured by the sound insulation material of the second part. When a reinforcing plate is provided between one side in the door thickness direction of the filling material of the door body and the surface material, the strength and sound insulation performance of the door body are further improved.

Brief Description of the Drawings

[0011]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Mode for Carrying Out the Invention

[0012] While referring to FIGS. 1 to 3, a sliding door device including a door body according to this embodiment will be described. The sliding door device includes a vertical frame 1 on the leading edge side of the door, a door pocket portion 2 on the trailing edge side of the door, an upper case 3, and a lower frame 4. A vertically rectangular opening is formed in a space surrounded by the vertical frame 1 on the leading edge side of the door, the indoor and outdoor vertical frames 20 and 21 at the leading edge side portion of the door pocket portion 2, the upper case 3, and the lower frame 4. The door body 5 moves in the left-right direction to open and close this opening.

[0013] The door body 5 includes a first surface 50 which is an outdoor-facing surface, a second surface 51 which is an indoor-facing surface, an upper end surface 52, a leading edge side end surface 53, a trailing edge side end surface 54, and a downwardly concave lower surface portion 55. The first surface 50, the second surface 51, the upper end surface 52, the leading edge side end surface 53, and the trailing edge side end surface 54 form the outer surface of the door body 5. The outer surface of the door body 5 is formed of a plurality of surface materials made of thin steel plates which are decorative steel plates. The surface materials according to this embodiment include a first surface material (including a main surface portion including the first surface 50) 5A and a second surface material (including a main surface portion including the second surface 51) 5B. Further, although the outer surface of the door body 5 according to this embodiment includes an upper edge material 5C and a leading edge material 5D, it is understood by those skilled in the art that the number and shape of the plate materials forming the outer surface of the door body 5 are not limited to these.

[0014] Inside the door body 5, there is a four-sided frame 6 made of metal (typically steel), and a filler material filled in the space surrounded by the four-sided frame. The filler material according to this embodiment is formed from a paper core 7 as the main material and glass wool 8 partially filled in the door thickness direction. Further, in this embodiment, a reinforcing plate 9 made of metal (typically steel) is provided on one side of the filler material. The internal structure of the door body 5 is constituted by the four-sided frame 6, the filler material (paper core 7, glass wool 8), and the reinforcing plate 9, and the door body 5 is formed by fixing a plurality of facing materials 5A and 5B around it. In this embodiment, the glass wool 8 and the reinforcing plate 9 are arranged on the first surface 50 side, which is the outdoor-facing surface. However, the glass wool 8 and the reinforcing plate 9 may be arranged on the second surface 51 side, which is the indoor-facing surface.

[0015] The four-sided frame 6 is formed by assembling (typically welding) an upper frame 60, which is a long member extending in the door width direction, a leading-edge vertical frame 61 and a trailing-edge vertical frame 62, which are long members extending in the door height direction, and a lower frame 63, which is a long member extending in the door width direction, in a four-sided shape.

[0016] The upper frame 60 is formed in a U-shaped cross-section view from the first facing surface, the second facing surface, and the upper surface, ensuring the strength of the upper end portion of the door body 5. The leading-edge vertical frame 61 is formed in a U-shaped cross-section view from the first facing surface, the second facing surface, and the end face, ensuring the strength of the leading-edge portion of the door body 5. The trailing-edge vertical frame 62 is formed in a U-shaped cross-section view from the first facing surface, the second facing surface, and the end face, ensuring the strength of the trailing-edge portion of the door body 5. The lower frame 63 includes a first facing portion having the first facing surface, a second facing portion having the second facing surface, and a downward concave portion 630 formed between the first facing portion and the second facing portion, forming the lower surface portion 55 of the door body 5 and ensuring the strength of the lower end portion of the door body 5.

[0017] The first surface material 5A includes a main surface portion corresponding to the first surface 50 and folded-back pieces on the upper side and both sides. The first surface material is fixed (e.g., adhered by an adhesive or a double-sided tape) to the first finding surface of the upper frame 60, the vertical frame 61 at the door tip side, the vertical frame 62 at the door bottom side, the lower frame 63, and the upper surface of the upper frame 60, the prospective surface of the vertical frame 61 at the door tip side, and the first-side portion of the prospective surface of the vertical frame 62 at the door bottom side. The main surface portion of the first surface material 5A is fixed (e.g., adhered by an adhesive or a double-sided tape) to the first-side surface of the filling material (in this embodiment, the reinforcing plate 9).

[0018] The second surface material 5B includes a main surface portion corresponding to the second surface 51 and folded-back pieces on the upper side and both sides. The second surface material is fixed (e.g., adhered by an adhesive or a double-sided tape) to the second finding surface of the upper frame 60, the vertical frame 61 at the door tip side, the vertical frame 62 at the door bottom side, the lower frame 63, and the upper surface of the upper frame 60, the prospective surface of the vertical frame 61 at the door tip side, and the second-side portion of the prospective surface of the vertical frame 62 at the door bottom side. The main surface portion of the second surface material 5B is fixed (e.g., adhered by an adhesive or a double-sided tape) to the second-side surface of the filling material.

[0019] The third surface material (upper edge material) 5C is formed in a U-shaped cross-section with a surface portion corresponding to the upper end surface 52 of the door body 5, and is fixed (e.g., adhered by an adhesive or a double-sided tape) to the upper end portion of the door body 5. The fourth surface material (door tip edge material) 5D is formed in a U-shaped cross-section with a surface portion corresponding to the door tip side end surface 53 of the door body 5, and is fixed (e.g., adhered by an adhesive or a double-sided tape) to the door tip side portion of the door body 5.

[0020] At a predetermined height position of the leading end side portions of the first surface 50 and the second surface 51 of the door body 5, a pull bar 56 is provided as an operation part. Above and below the pull bar 56, a lock 57 is provided. Further, on the second surface 51 of the door body 5, a security chain 58 is provided above the upper lock 57. In the internal space of the door body, a filling material is not provided at a portion 59 (see FIGS. 1 and 6 lower figure) corresponding to the attachment portions of these door constituent members. The pull bar 56, the lock 57, and the security chain 58 are fixed to the portion 59. The portion 59 is formed of a member having a U-shaped cross section from a prospective surface 590, a first finding surface 591, and a second finding surface 592. The first finding surface 591 and the second finding surface 592 of the portion 59 are flush with the first finding surface and the second finding surface of the leading end side vertical frame 61, and are fixed in a state where their tips are butted against each other. The main surface portions of the first surface material 5A and the second surface material 5B are fixed (for example, adhered by an adhesive or a double-sided tape) to the first finding surface 591 and the second finding surface 592 of the portion 59.

[0021] In the present embodiment, the upper part of the internal space of the door pocket portion 2 communicates with the internal space of the upper case 3. Inside the first finding surface 30 of the upper case 3, a vertical surface 30' extending from the internal space of the upper case 3 across the upper part of the internal space of the door pocket 2 is provided with a hanger rail 32. The second finding surface of the upper case 3 is formed of an inspection cover 31 that is rotatable or removable with respect to the upper case body.

[0022] On the upper end surface 52 of the door body 5, two hanger rollers 33 are provided at intervals in the width direction. The upper end portion of the door body 5 is located inside the upper case 3 and is suspended from the hanger rail 32 via the hanger rollers 33. As the hanger rollers 33 roll on the hanger rail 32, the door body 5 moves left and right to open and close the opening. On the lower surface of the upper case 3, airtight members 34 each having fins protruding downward across the width direction are provided on the first side and the second side with the receiving portion for the upper end portion of the door body 5 interposed therebetween. When the opening is in the fully closed position, the airtight members 34 contact the upper end portion (upper end edge material 5C) of the door body 5 to ensure upper airtightness and sound insulation.

[0023] In the projected portion of the vertical frame 1 on the door end side, a recess 10 for receiving the door end side of the door body 5 is formed. In the fully closed position of the opening, the door end side portion of the door body 5 is located within the recess 10 of the vertical frame 1 on the door end side. Inside the recess 10 of the vertical frame 1 on the door end side, an airtight member 11 is provided which is located on the first side and the second side respectively in the height direction and extends oppositely with fins. When in the fully closed position of the opening, the airtight member 11 contacts the door end side portion (door end edge member 5D) of the door body 5, thereby ensuring airtightness and sound insulation on the door end side.

[0024] In the fully closed position of the opening, the door butt side portion of the door body 5 is located within the opening formed between the vertical frames 20 and 21 of the door pocket portion 2. On the vertical frames 20 and 21 of the door pocket portion 2, airtight members 200 and 210 are respectively provided such that fins project oppositely into the opening in the height direction. When in the fully closed position of the opening, the airtight member 200 contacts the contact portion 500 protruding from the door butt side of the first surface 50 of the door body 5, and the airtight member 210 contacts the contact portion 510 protruding from the door butt side of the second surface 51 of the door body 5, thereby ensuring airtightness and sound insulation on the door butt side.

[0025] A swing stopper roller 40 is provided at the door butt side portion of the lower frame 4, and the downward recess 630 on the lower surface portion 55 of the door body 5 serves as the guided portion by the swing stopper roller 40. Inside the recess 630 on the lower surface portion 55 of the door body 5, airtight members 631 are respectively provided which are located on the first side and the second side and have fins protruding downward across the width direction of the door body 5. When in the fully closed position of the opening, the airtight members 631 contact the upper surface of the lower frame 4, thereby ensuring airtightness and sound insulation at the lower end.

[0026] Thus, in the sliding door device according to the present embodiment, when the opening is fully closed, the upper side portion, the lower end portion, the door end side portion, and the door butt side portion of the door body 5 in the closed position contact the fins of the airtight members 34, 631, 11, 200, and 210, and by closing the gap with the opening across the four sides of the door body 5, the airtightness and sound insulation are improved.

[0027] The internal structure of the door body 5 will be described in detail. The filling material according to the present embodiment is formed from a paper core 7 as a main material and glass wool 8 partially filled in the door thickness direction. Further, in the present embodiment, a reinforcing plate 9 made of metal (steel in the present embodiment) is provided on the first side of the filling material. In this specification, the paper core 7 filled substantially over the entire thickness (internal space) of the door body 5 is appropriately denoted as "paper core 7", and the paper core 7 at the portion filled with the glass wool 8 is denoted as "paper core 7'", thereby distinguishing the two.

[0028] The filling material according to the present embodiment consists of a first portion formed only of the paper core 7 in the door thickness direction and a second portion partially filled with the glass wool 8 in the door thickness direction, in which the glass wool 8 and the paper core 7' are laminated. The paper core 7 mainly functions as a core material, and the glass wool 8 mainly functions as a sound insulation material. Note that as the sound insulation material, rock wool may be used instead of the glass wool 8.

[0029] In the second portion according to the present embodiment, the glass wool 8 is located on one side in the door thickness direction, and the second portion is laminated from one layer of the glass wool 8 and one layer of the paper core 7'. In the present embodiment, the glass wool 8 of the second portion is located on the side of the first surface 50 (the first surface material 5A).

[0030] As shown in FIGS. 4 to 6 and the like, in the present embodiment, in the internal space of the door body 5, a plurality of second portions (glass wool 8 + paper core 7') having a vertically long rectangular shape in a front view are filled at intervals in the door width direction, and in the internal space of the door body 5, the first portion (paper core 7) is filled in the space excluding the portion where the plurality of second portions are filled. In the present embodiment, the paper core 7 is not filled inside the frame 6, but the glass wool 8 may be filled inside the frame 6.

[0031] In one aspect, as shown in FIG. 8, the second part is prepared as a laminated panel 7A in which glass wool 8 and a paper core 7' are laminated. The first part is prepared from panels or blocks of a plurality of paper cores 7. An aluminum sheet (not shown) may be attached to the surface of the glass wool 8 of the laminated panel 7A. By preparing a plurality of laminated panels 7A and a plurality of blocks of the paper core 7, the end faces thereof are brought into contact (adhesion may be performed) with each other, and the internal space of the door body 5 is filled. The modes in which a plurality of laminated panels 7A are filled are shown in the right view of FIG. 2, the lower view of FIG. 3, the central view of FIG. 6, and the lower view of FIG. 7.

[0032] In the illustrated mode, the second parts having a vertically elongated rectangular shape in the front view are arranged in four columns at intervals in the door width direction, but the number and shape of the second parts are not limited. In the modes shown in FIGS. 4 to 6, the four columns of the second parts (glass wool 8 + paper core 7') have the same width, but a plurality of second parts having different widths may be arranged (see FIG. 1). In the illustrated mode, the second parts are arranged at intervals in the door width direction, but the plurality of second parts may be filled at intervals in the door width direction and / or in the door height direction in the internal space of the door body 5.

[0033] In this embodiment, a steel reinforcing plate 9 is provided on the first side of the filler material. The reinforcing plate 9 is a substantially vertically rectangular plate having dimensions to cover most of the back side of the first surface 50 of the door body 1, and a portion (door tip side portion) corresponding to the attachment portion of the door constituent member is cut out (in the lower figure of FIGS. 1 and 6, the cutout is indicated by "9'"). The reinforcing plate 9 includes an upper edge 90, a lower edge 91, a door tip side vertical edge 92, and a door butt side vertical edge 93. As shown in FIG. 4, the cutout 9' includes an upper edge 90', a lower edge 91', and a side edge 92', and the upper edge 90', the lower edge 91', and the side edge 92' are close to a portion 59 corresponding to the attachment portion of the door constituent member. The end portions (the upper edge 90, the lower edge 91, the door tip side vertical edge 92, and the door butt side vertical edge 93) of the reinforcing plate 9 are close to the four-sided frame 6 (in the illustrated aspect, they are close but may be in contact). Specifically, in the illustrated aspect, the upper edge 90, the door tip side vertical edge 92, the door butt side vertical edge 93, and the lower edge 91 of the reinforcing plate 9 are respectively at positions slightly separated from the edge of the first finding surface and the second finding surface of the upper frame 60, the door tip side vertical frame 61, the door butt side vertical frame 62, and the lower frame 63. In this separated portion, the paper core 7 and the first surface material 5A are adhered (adhered by an adhesive or adhered by a double-sided tape). As shown in FIG. 2, the upper edge 90 of the reinforcing plate 9 is located on the lower surface of the upper case 3, and as shown in FIG. 3, the door tip side vertical edge 92 is located on the prospective surface of the door tip side vertical frame 1, and the door butt side vertical frame 93 is located on the prospective surface of the door butt side vertical frame 2.

[0034] The first surface of the reinforcing plate 9 is adhered (adhered by an adhesive or adhered by a double-sided tape) to the main surface portion of the first surface material 5A, and on the second surface of the reinforcing plate 9, the surface portions of each of the plurality of second parts of the glass wool 8 and one side surface of the paper core 7 of the first part are adhered (adhered by an adhesive or adhered by a double-sided tape). The other side surface of the paper core 7 of the first part and the surface portion of the paper core 7' of the second part are adhered (adhered by an adhesive or adhered by a double-sided tape) to the main surface portion of the second surface material 5B.

[0035] The first part of the paper core 7 is adhered to the peripheral part of the second surface of the reinforcing plate 9, and the second part of the glass wool 8 is located inside the peripheral part of the second surface of the reinforcing plate 9 and adhered to the second surface. Since the adhesion strength between the glass wool 8 and the reinforcing plate 9 and the adhesion strength between the glass wool 8 and the paper core 7´ are relatively weak due to the material of the glass wool 8, the rigidity of the door body 5 is maintained by increasing the adhesion strength of the peripheral part of the reinforcing plate 9.

[0036] The paper cores 7, 7´ according to the present embodiment are core materials made of aluminum hydroxide mixed paper (for example, aluminum hydroxide honeycomb core). Although the density of the glass wool 8 that can be adopted in the present invention is not limited, for example, it is 16~120 kg / m 3 It is. The density of the glass wool 8 used in the present embodiment is 120 kg / m 3 It is.

[0037] In one aspect (although not limited), the total area of the second part (glass wool 8) in the front view is 50% or more and 65% or less of the visible area of the door body 5. If the total area of the second part (glass wool 8) is less than 50% of the visible area of the door body 5, the sound insulation performance may be insufficient. Also, if the total area of the two parts (glass wool 8) is larger than 65% of the visible area of the door body 5, it may affect the door strength (the adhesion force of the glass wool 8 part is weak).

[0038] In one aspect, although the thickness of the layer of the second part of the glass wool 8 is not limited, it is 1 / 5 to 1 / 9 of the thickness of the first part (paper core 7). In the present embodiment, the thickness of the layer of the second part of the glass wool 8 is 1 / 8 of the thickness of the first part (paper core 7). If the thickness of the glass wool 8 is increased, the sound insulation performance will be improved, but the strength of the door body 5 (filling material) will be reduced. In the present embodiment, by cooperating with the provision of the reinforcing plate 9, the thickness of the glass wool 8 is selected to be a thickness that can maintain the strength of the door body 5 while maintaining the desired sound insulation performance, thereby providing the door body 5 as a sound insulation door.

[0039] The sliding door device according to this embodiment has high sound insulation performance (T-3), and in one preferred embodiment that is not limited, it is used as the door of a hotel guest room (especially a guest room for wheelchair users, etc.).

[0040] Regarding the door body 5 which is the sound insulation door according to the present invention, although it has been described based on the embodiment of the sliding door device, it is understood by those skilled in the art that the door body 5 can also be applied to a hinged door by design modification.

Explanation of reference numerals

[0041] 5 Door body 5A First surface material (surface material) 5B Second surface material (surface material) 6 Frame 7 Paper core (core material, first part) 7´ Paper core (core material, second part) 7A Laminated panel (second part) 8 Glass wool (sound insulation material, second part) 9 Reinforcing plate

Claims

1. A facing material, a surrounding frame, a filling material filled in an internal space surrounded by the facing material and the surrounding frame, comprising: the filling material includes a first portion formed only of a core material in the door thickness direction, and a second portion partially filled with a sound insulation material in the door thickness direction and having the sound insulation material and the core material laminated thereon, and in the internal space, the first portion is filled so as to surround the second portion; in the second portion, the sound insulation material is located on one side in the door thickness direction, and the second portion is laminated from one layer of sound insulation material and one layer of core material; A sound insulation door.

2. A facing material, a surrounding frame, a filling material filled in an internal space surrounded by the facing material and the surrounding frame, comprising: the filling material includes a first portion formed only of a core material in the door thickness direction, and a second portion partially filled with a sound insulation material in the door thickness direction and having the sound insulation material and the core material laminated thereon, and in the internal space, the first portion is filled so as to surround the second portion; the second portion is a laminated panel in which the sound insulation material and the core material are laminated; A sound insulation door.

3. A facing material, a surrounding frame, a filling material filled in an internal space surrounded by the facing material and the surrounding frame, comprising: the filling material includes a first portion formed only of a core material in the door thickness direction, and a second portion partially filled with a sound insulation material in the door thickness direction and having the sound insulation material and the core material laminated thereon, and in the internal space, the first portion is filled so as to surround the second portion; the plurality of second portions are vertically long portions extending in the height direction of the door body in a front view and are filled in parallel with a space therebetween in the width direction of the door body; the first portion includes a vertically long portion filled between the plurality of second portions; A sound insulation door.

4. The vertically long portion of the first portion is located at the central portion in the width direction of the door body. The sound insulation door according to Claim 3.

5. The plurality of second portions are filled with a space therebetween in the door width direction and / or the door height direction, and in the internal space, the first portion is filled in a space excluding the portion filled with the plurality of second portions. The sound insulation door according to any one of Claims 1 to 4.

6. A reinforcing plate is provided between one side in the door thickness direction of the filling material and the facing material. The sound insulation door according to any one of Claims 1 to 5.

7. The first surface of the reinforcing plate is adhered to the facing material. On the second surface of the reinforcing plate, each of the plurality of sound insulation materials of the second part and the core material of the first part are adhered. On the peripheral part of the second surface of the reinforcing plate, the core material of the first part is adhered. The sound insulation door according to claim 6.

8. The core material is a paper core. The sound insulation material is glass wool. The sound insulation door according to any one of claims 1 to 7.

9. A sliding door device including the sound insulation door according to any one of claims 1 to 8.

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