JP6538319B2 - Door frame mounting structure and mounting method - Google Patents

Description

  The present invention relates to a mounting structure of a door frame having high sound insulation and vibration isolation.

  When installing a soundproof door in a machine room etc., it is necessary to consider how to transmit two types of sound. That is, it is necessary to shut off air-borne sound that propagates the air by vibrating air and solid-borne sound that propagates as floor or wall vibration. In the case of solid-borne sound, vibrations associated with the operation of a machine are transmitted from the wall to the soundproof door through the door support such as the hinge of the soundproof door, and the vibration is converted into sound at the door panel and radiated into the air is there. For example, noise and vibration generated by the operation of a pumping station for transferring, draining or pressurizing fresh water, sewage, or other liquid, and other mechanical equipment propagate to the outside as air-borne sound and solid-borne sound.

  In such a case, in order to obtain a predetermined soundproofing performance, two functions are required: sound insulation of air-borne sound and reduction of solid-borne sound by vibration isolation. In addition, in the case of supporting the soundproof door in an anti-vibration manner, it is necessary to take measures against earthquakes different from general doors, and it may be required to have a mechanism therefor.

The conventional soundproof door is intended for sound insulation of air propagation noise, and the sound insulation is enhanced by thickening the door panel of the door or filling a sound absorbing material in the door panel.
A typical conventional soundproof door intended only for sound insulation of airborne noise is shown in FIG. 13 (a) is a front view, FIG. 13 (b) is a longitudinal sectional view as viewed in the AA direction of FIG. 13 (a), and FIG. 13 (c) is a cross as viewed in the BB direction of FIG. It is a front view. The door panel 10 is attached to the door frame 14 by a hinge 12. In the door panel 10, a filler 16 such as glass wool is packed for sound insulation. That is, the door panel 10 has a sound absorbing material such as glass wool sandwiched between two steel plates to enhance the sound insulation. At a portion where the door panel 10 and the door frame 14 meet, a door packing 18 using an elastic body for sound leakage prevention is provided. That is, in order to prevent the sound wave from leaking from the gap between the door panel 10 and the door frame 14, the door packing 18 using an elastic body such as rubber is provided.

  Such a soundproof door can exhibit predetermined sound insulation against airborne sound, but when the vibration of the device is propagated to the door, to prevent the solidborne sound generated from there I can not do it. Therefore, even if the air-borne noise is sufficiently isolated, the generation of the solid-borne noise may make it impossible to reduce the noise to a target noise value.

  On the other hand, depending on the place where the door is installed, in order to further improve the sound insulation, air tightness is not only enhanced, noise is not only suppressed through the door panel, but noise generated by opening and closing the door (a type of "solid propagation noise" In some cases it is necessary to Therefore, in the prior art, devices as described in the following document are made.

  Patent Document 1 discloses a structure in which an anti-vibration material is attached to a mounting bracket of a door frame to perform anti-vibration. An object of the present invention is to prevent generation of vibration and impact noise due to opening and closing of a door. That is, it is an object to prevent the noise generated from the door itself from diffusing to the outside of the door (for example, to the next room or the like).

In Patent Document 1, the door frame contacts the wall through a vibration-proof material at the place where the mounting bracket is attached. In places other than this place, where the door frame contacts the wall body, the door frame contacts the wall body via a waterproof material made of an elastic material to avoid the vibration propagation. However, in this structure, the load on the door is received by the elastic material so that the frictional force on the elastic material and the force in the direction of shearing the elastic material work, and the elastic material is likely to be sheared or deteriorated. . Thus, heavy doors can not be installed.

  In patent document 2, the door frame attachment structure for partition panels characterized by having provided the anti-vibration material between the door frame and the opening part over the door frame whole circumference is devised. It is intended for relatively lightweight partition panel doors. The purpose and the effect are the same as those of Patent Document 1.

  Patent Document 3 discloses, similar to Document 2, a door frame attachment structure in which a shock absorbing material is provided between the door frame and the opening of the building over the entire circumference of the door frame. The purpose and the effect are the same as in the document 1. The purpose is to prevent noise propagation to the next room and the upper and lower floors, and it relates to the door installed in the building.

  In all of Patent Documents 1 to 3, the purpose is to prevent vibration (such as vibration due to opening and closing of the door) generated from the door itself from being generated as noise at a location other than the door (for example, in the next room). The door itself is a normal door. Therefore, no measures have been taken against noise transmitted from the noise source inside the door (indoor) to the outside (outdoor) passing through the door itself.

  In Patent Document 4, one soundproof door is configured of two door panels, and one of the two door panels is supported so as to surround the periphery of the door panel with a vibration-proof material to remove solid propagation noise. A soundproof door is disclosed. Patent Document 4 is also excellent in fire resistance because the anti-vibration material is not exposed on the door surface. An object of the present invention is to provide a structure for blocking external noise in a studio or the like, and the structure that suppresses the vibration generated in the door panel by the sound that has entered the door panel from the outside by the structure is a room. It prevents noise from being transmitted to the inside. In patent document 4, it aims at prevention of the noise which enters into a room from the outside, and is not considered about the soundproofing measures in case a solid propagation sound radiates outside.

  Patent Document 5 discloses a structure in which vibration generated at a door is damped by configuring a support on which a hinge of a door is attached at two upper and lower positions of the support following the support with vibration-proof rubber. Sound and vibration associated with the opening and closing of the door are cut off by the anti-vibration rubber. However, with this structure, no load is applied vertically (in the direction of gravity) to the vibration-proof rubber, and a force in the bending direction may be applied, so it is difficult to mount a heavy door. Moreover, in order to exhibit appropriate anti-vibration performance, it is necessary to adjust the compression amount of upper and lower anti-vibration rubbers, but it is difficult with the structure of Patent Document 5.

JP-A-8-218737 Japanese Patent Laid-Open No. 5-263567 JP-A-7-305568 Japanese Utility Model Sho 61-56488 Japanese Utility Model Sho 63-10111

  The above-described door anti-vibration technology according to the prior art is directed to relatively light doors. On the other hand, a heavy door has a large dead weight, and as a result, has a large transmission loss with respect to a sound wave (air-borne sound) propagating in the air. The anti-vibration technology of the door according to the prior art is not suitable for anti-vibration of a heavy door because it is directed to a relatively lightweight door.

  In the vibration isolation structure which only sandwiches the shock absorbing material as in the prior art, there is a problem that it is difficult to adjust the vibration isolation performance according to the frequency of the vibration to be damped. The conventional vibration isolation technology is mainly intended to shut off the vibration generated with the opening and closing of the door, but it is suitable as a vibration damping device for reducing the solid propagation sound generated by the vibration transmitted from the outside to the door It is difficult to design.

  The present invention is a heavy-duty door with high sound insulation, which isolates air-borne noise and reduces vibrations transmitted from the machine other than the door, for example, from an indoor machine to the door through the structure, and is radiated into the air via the door. Providing a door with reduced solid-borne sound.

  In order to achieve the above object, in one embodiment, a door frame mounting structure for mounting a door frame includes a door frame on which the door is installed, and a first vibration-proof material, and the first vibration-proof material A first anti-vibration portion for attaching the door frame to the door frame receiving portion via the first anti-vibration portion capable of receiving the load of the door and the door frame, and a second anti-vibration member And a second anti-vibration portion that attaches the door frame to a wall via the second anti-vibration material and prevents overturning of the door frame.

  The load of the door body and the door frame is supported by the first vibration isolation unit installed between the door frame receiving portion and the door frame. Moreover, since it becomes unstable by supporting with a vibration-proof material, the 2nd vibration-proof part which is a fall prevention with a vibration-proof function is provided.

The first vibration isolation portion can be installed discontinuously, that is, discretely, between the door frame receiving portion and the door frame. One continuous vibration isolation unit may be used.
The first vibration-proof material and the second vibration-proof material are materials having a function of damping vibration, or devices made of such materials, and are, for example, vibration-proof rubbers.

  In the present invention, it is preferable to have a shielding part which inhibits the ventilation in the first vibration isolation part. When the first anti-vibration portion is disposed discontinuously, the shielding in the first anti-vibration portion is blocked by the shielding portion to receive the door frame other than the place where the first anti-vibration portion is installed. Sound can be prevented from leaking between the unit and the door frame. Furthermore, the shielding plate can prevent the first vibration-proof material from being exposed to direct sunlight or weather.

The material of the shielding portion is, for example, a steel plate or an elastic material.
In addition, an elastic sealing material may be disposed between the door frame receiving portion and the shielding plate to further enhance the sound insulation.

  The second vibration-proof material is preferably in a compressed state. The vibration-proof material such as a vibration-proof rubber or rubber washer, which is the second vibration-proof material, is compressed by tightening a bolt or the like. Even if the door frame receives a wind pressure on the door and the door frame moves horizontally, the anti-vibration effect is maintained.

The wall is an outer wall of a building, and the door frame receiving portion and the door frame can be disposed at an opening of the outer wall of the building.
In another embodiment, the wall is an outer wall of a building, and the door frame receiving portion and the door frame can be disposed at an opening of a sound insulating wall installed outside the outer wall of the building.

  Furthermore, as a countermeasure against earthquakes, etc., a stopper (aseismic stopper) disposed between at least one of the door frame receiving portion and the wall and the door frame, which restricts the movement of the door frame during an earthquake or the like May be provided.

  According to the mounting method of the door frame of the present invention, the door frame is mounted on the door frame receiving portion via the first vibration isolation material by the first vibration isolation portion including the first vibration isolation material; The first vibration isolation unit can receive the load of the door and the door frame, and the second vibration isolation unit including the second vibration isolation member allows the wall to be interposed via the second vibration isolation member. The door frame is attached to the second frame, and the second vibration-proof unit prevents the door frame from falling and installs the door on the door frame.

The invention is preferably applied, for example, to doors facing the outside of the machine room which generate noise and vibrations.
Furthermore, the following functions and characteristic structures can be added to the present invention.
-The door panel of the door can be made as a cement board to have high sound insulation. A cement board is a material similar to a building outer wall, and can match an appearance with a building.
-Reduce the weight of the door panel by changing the material and configuration of the door panel. This can reduce the load on the structure or place where the door is installed and on the hinge.
-By providing the door panel with a reinforcement (turn buckle or brace), the door panel can be reinforced when the door mass is large.
-Provide a caster on the door. This reduces the load on the hinge. If the wheels of the caster are made of rubber tires, they have anti-vibration properties and it is possible to use heavy doors even at uneven places.
-By doubling the door packing, sound insulation, dust resistance, and rain water sealing can be improved.
-By providing a relief hole for rainwater in the door frame located at the bottom of the door, it is possible to drain rainwater that has entered the door frame.
-In the case of a hinge that can be inserted and removed, the door can be removed, which is convenient when a wide opening is required for loading and unloading the machine.
-A door lock function can be added to the door by attaching a key or a rod to be inserted into a hole in the ground. As a result, crime prevention is improved.

FIG. 1 shows a schematic configuration of a door frame mounting structure according to an embodiment of the present invention. FIG. 2 is a front view of the mounting structure shown in FIG. FIG. 3 is a cross-sectional view of the mounting structure shown in FIG. FIG. 4 is a plan view of the mounting structure shown in FIG. FIG. 5 is a detailed view of a portion B shown in FIG. FIG. 6 is a detailed view of the vibration isolation device 28. As shown in FIG. FIG. 7 is a view showing an example in which the mounting structure of the door frame is applied to a part of the sound insulation wall. FIG. 8 is a view showing an example of applying a door frame mounting structure to a door of a building. FIG. 9 is a view showing an example of the shielding plate 62. As shown in FIG. FIG. 10 is a view showing a schematic configuration of a door frame mounting structure according to another embodiment of the present invention. FIG. 11 is a view showing various configuration examples of the door panel according to the present invention. FIG. 12 is a view showing still another various configuration example of the door panel according to the present invention. FIG. 13 is a view showing a conventional soundproof door intended only for sound insulation of airborne sound.

Next, with reference to the accompanying drawings, an embodiment of a door frame mounting structure according to the present invention will be described in detail. In the following, the same reference numerals are given to the same members.
FIG. 1 is a view showing a schematic configuration of a door frame mounting structure 20 according to an embodiment of the present invention.
The door frame mounting structure 20 includes a door frame 24 on which the soundproof door 22 is installed, and a first vibration-proof member for attaching the door frame 24 to the door-frame receiving portion 26 via a vibration-proof rubber (first vibration-proof material). The door frame 24 is attached to the wall via a vibration-proof device 28 which is a part and a vibration-proof rubber (a second vibration-proof material) to prevent the door frame 24 from falling down. And an apparatus 30.

The anti-vibration device 28 can receive the load of the door 22 and the door frame 24, and the anti-fall device 30 prevents the door frame 24 from falling.
In FIG. 1, for the sake of clarity of the basic structure, the shielding plate which is the shielding portion is not shown. In this configuration, the soundproof door 22 is supported by the hinge 32 in the door frame 24 as usual. The anti-vibration device 28 is disposed in the door frame receiving portion 26, and the lower portion of the door frame 24 is anti-vibration supported. Further, anti-fall devices 30 are installed at two locations on the left and right of the upper portion of the door frame 24. The soundproof door 22 is composed of a door panel 34 and a handle 36.

The door frame 24 and the door frame receiving portion 26 are disposed at an opening such as an outer wall of a building. The door frame receiving portion 26 is fixed on the base 37 of the opening.
The antiseismic stopper 38 is disposed between the door frame receiving portion 26 and the door frame 24. The antiseismic stopper 38 restricts the movement of the door frame 24 during an earthquake or the like.

  The detail of the attachment structure 20 of a door frame is shown to FIGS. FIG. 2 is a front view of the mounting structure shown in FIG. FIG. 3 is a cross-sectional view of the mounting structure shown in FIG. FIG. 4 is a plan view of the mounting structure shown in FIG. FIG. 5 is a detailed view of a portion B shown in FIG.

  As shown in FIGS. 2 and 3, in a state where the door 22 is attached to the inside of the door frame 24, the door frame 24 is damped by the anti-vibration device 28, and the door frame 24 is prevented from falling down. A device 30 is installed to connect the door frame 24 and the outer wall 40 of the building. In FIG. 1, four anti-vibration devices 28 are installed symmetrically in the lower part of the door frame 24. A total of two anti-fall devices 30 are provided on the upper left and right of the door frame 24, one each.

The vibration isolation device 28 includes a vibration isolation rubber 42, a spacer 44, and a bottom plate 46. The anti-vibration rubber 42 adjusts the installation height by the spacer 44. The details are shown in FIG.
The anti-vibration rubber 42 is attached to the metal plate 42 a. There are three spacers 44 in FIG. 6 between the bottom plate 46 and the metal plate 42a. The metal plate 42a and the spacer 44 are attached to the bottom plate 46 by bolts 48a and nuts 48b. The bottom plate 46 is fixed to the door frame receiving portion 26 by a bolt 48 c and a nut 48 d.

  As a mounting procedure, the bottom plate 46 is fixed to the door frame receiving portion 26. Next, the vibration-proof rubber 42 with the metal plate 42a, the spacer 44 and the bolt 48e are installed between the bottom plate 46 and the door frame 24 by adjusting the height according to the number of the spacers 44. After adjusting the height, the metal plate 42a and the spacer 44 are attached to the bottom plate 46 by the bolt 48a and the nut 48b. Finally, the nut 48f is fixed to the bolt 48e.

Examples of the material of the vibration-proof rubber include silicone rubber, natural rubber, chloroprene rubber, urethane rubber and the like.
The anti-fall device 30 shown in FIG. 3 is attached to the left and right two places of the upper part of the door frame 24. The anti-fall device 30 is characterized by having a vibration-proof rubber 50 and a rubber washer 52. The anti-fall device 30 is characterized by installing a rubber washer so as to prevent the vibration from being transmitted to the door frame through a fastening member such as a bolt used for fixing and supporting.

The anti-fall device 30 has a bolt 54 for adjusting the length, a rubber cushion 50, a rubber washer 52, and plates 56a, 56b, 56c for holding these. The length adjusting portion 58 is fixed to a required length by the length adjusting bolt 54 and the nuts 60 a and 60 b attached to both ends of the length adjusting portion 58. By adjusting the length of the length adjusting portion 58, the amount of compression of the anti-vibration rubber 50 can be adjusted.

  One end of the length adjusting bolt 54 is extended to the side of the vibration-proof rubber 50, and penetrates the two plates 56b and 56c sandwiching the vibration-proof rubber 50. Of the two plates, a plate 56c opposite to the length adjusting portion 58 has a hole larger than the bolt 54. After passing the bolt 54 through the hole, the rubber washer 52 and the nut 60 c are attached to the bolt 54. Thus, the bolt 54 is held by the penetrating plate 56c via the rubber washer 52. The amount of compression of the rubber washer 52 is adjusted by the position of the nut 60 c in contact with the rubber washer 52.

  The anti-vibration rubber 50 is attached to the bottom plate 50 a by adhesion or the like. The bottom plate 50a is attached to the support fitting 68a by a bolt 50b. The flange portion 68b of the support fitting 68a is fixed to the outer wall 40 by a bolt 68c.

The anti-fall device 30 has its plate 56 a welded to the support fitting 70, and the support fitting 70 is welded to the door frame 24.
As for the anti-vibration rubber 42 of the anti-vibration device 28, in consideration of the mass of the door 22 and the door frame 24 supported by the anti-vibration rubber 42 and the frequency of the vibration to be isolated, appropriate natural frequencies are isolated after installation The spring constant of the anti-vibration rubber 42 is selected so that the rubber 42 has. In addition, the anti-vibration rubber 50 and the rubber washer 52 of the fall prevention device are compressed by being tightened by the nuts 60 b and 60 c, so that a load is virtually applied to the rubber.

  The natural frequency (resonance frequency) of the anti-vibration rubber 42 is determined by the spring constant and the number of the anti-vibration rubber 42 and the mass of the door frame 24 and the door 22 to be supported. That is, the natural frequency is determined by the amount of compression of the vibration-proof rubber 42. The natural frequencies of the anti-vibration rubber 50 and the rubber washer 52 are determined by their spring constants and the tightening by the nuts 60 b and 60 c. The compression amounts of the anti-vibration rubbers 42 and 50 and the rubber washer 52 are set so that these natural frequencies are different from the frequency of vibration to be isolated. As a result, vibration can be prevented from being transmitted from the door frame receiving portion 26 and the outer wall 40 to the door 22.

  In this embodiment, since the vibration isolation device can be designed according to the frequency of vibration to be damped, vibration isolation can be efficiently performed if, for example, the frequency of vibration generated from a machine installed nearby is known. be able to.

  When the wind load acts on the door panel 34 and the door panel 34 is pushed or pulled horizontally, the anti-vibration rubber 50 and the rubber washer 52 of the fall prevention device 30 are compressed in advance by the bolts 60 b and 60 c. deep. As a result, even if the position of the door 22 is slightly moved by the wind pressure, either of the anti-vibration rubber 50 and the rubber washer 52 increases the amount of compression and decreases the amount of compression of the other. If it is inside, both remain compressed. In general, anti-vibration rubber can not exhibit anti-vibration performance unless it is compressed by a length determined for each product. If not compressed beforehand, if the amount of compression of either the anti-vibration rubber 50 or the rubber washer 52 is lost or reduced by wind pressure, the necessary anti-vibration performance can not be exhibited, and the vibration is propagated to the door panel 34, Solid-borne sound may be generated. According to the present invention, such a problem can be prevented.

The antiseismic stopper 38 shown in FIG. 2 includes a bolt 38 b attached to a pedestal 38 a fixed to the door frame receiving portion 26 and nuts 38 c and 38 d attached to the end where the bolt 38 b penetrates the door frame 24. Where the bolt 38 b penetrates the door frame 24, a hole larger than the diameter of the bolt is opened in the door frame 24 so as not to contact the door frame 24.

  Since the soundproof door according to the present invention is provided with a vibration isolation device made of a vibration proof rubber or the like in the door frame, when an earthquake occurs, the soundproof door swings more easily than a normal soundproof door. Therefore, as shown in FIG. 2, by attaching the anti-seismic stopper, it is suppressed within the swaying width restricted by the anti-seismic stopper even when it shakes significantly at the time of an earthquake or more than normal use. It can prevent damage.

  In the embodiment shown in FIGS. 1 to 6, the anti-vibration stopper is disposed only between the door frame receiving portion and the door frame. However, the anti-vibration stopper may be disposed only between the wall and the door frame, or may be disposed between both the door frame receiving portion and the wall and the door frame.

When the seismic stopper is disposed between the wall and the door frame, the seismic stopper is preferably installed between the plate 56b and the plate 56c of the anti-fall device 30 shown in FIG.
The configuration of the seismic stopper is similar to that of the seismic stopper 38 shown in FIG. That is, the antiseismic stopper has a bolt attached to a pedestal fixed to the plate 56c and two nuts attached to the tip where the bolt penetrates the plate 56b. At the point where the bolt penetrates the plate 56b, a hole larger than the diameter of the bolt is opened in the plate 56b so as not to contact the plate 56b. By installing such an anti-vibration stopper, even if the door frame 24 swings in any direction in the left and right direction in FIG. 3, the swing can be suppressed. The pedestal can be replaced with a nut by fixing to this bolt a nut for pedestal replacement other than the two nuts described above at a position corresponding to the top of the pedestal. The bolt is directly fixed to the plate 56c.

  The anti-vibration device 28 receiving the load of the door frame 24 is not installed on the entire periphery along the outer periphery of the door frame 24, but is installed at several places under the door frame 24. The sound wave leaks from the place where it is not In order to prevent this, a shielding plate 62 as shown in FIG. 3 is installed.

  As shown in FIG. 3, in order to close the gap formed between the lower portion of the door frame 24 and the door frame receiving portion 26, the shielding plate 62 is attached to both the front surface and the back surface of the door 22, or to one side. The shielding plate 62 is attached to the door frame 24. A shock absorbing material 64 is attached on the side of the shielding plate 62 in contact with the door frame receiving portion 26 in order to prevent a gap with the door frame receiving portion 26 as much as possible.

  The shock absorbing material 64 can be an elastic sealing material which is a kind of vibration absorbing material that does not transmit vibrations. The elastic sealing material is a silicon-based sealing material or a polysulfide-based sealing material.

  As shown in FIGS. 4 and 5, door packings 66a and 66b are provided on the door frame 24 and the door panel 34 where the door frame 24 and the door panel 34 are in contact with each other. As a result, the gap formed between the door frame 24 and the door 22 is closed to prevent the sound wave from leaking and impact noise generated by direct contact with the door frame 24 when the door 22 is opened and closed is prevented.

  As described above, according to the present invention, it is possible to suppress the propagation of the vibration generated by the operation of the machine or the like from the door support portion to the door panel, and to reduce the solid propagation sound generated from the door panel. In addition, the shield plate prevents the air propagation noise from leaking around the vibration control device which receives the load of the door frame.

  The installation structure of the door frame of the present invention can be applied to a part of the sound insulation wall 72 installed outside the building as shown in FIG. 7 or applied to the door of the building as shown in FIG. It can also be done. Between the two, the structure and fixing method of the anti-fall device are different. When applied to a part of the sound insulation wall shown in FIG. 7, the anti-fall device 30 shown in FIG. 3 and the like described above is fixed as described above. That is, the anti-fall device 30 is fixed to the outer wall 40 of the building, and the door frame receiving portion 26 and the door frame 24 are disposed at the opening 72 a of the sound insulating wall 72 installed outside the outer wall 40 of the building. A door frame 74 is attached to the opening 40 a of the outer wall 40, and a normal door 76 is attached to the door frame 74. As a result, a double door is configured, sound insulation is enhanced, and generation of solid-borne sound can also be suppressed.

  When applied to the door of a building shown in FIG. 8, the door frame receiving portion 26 and the door frame 24 are disposed at the opening 40 a of the outer wall 40 of the building. The anti-fall device 30a has a bolt 78, a rubber cushion 50, a rubber washer 52, and a plate 80 for holding them. The bolt 78 penetrates the support 82 fixed to the outer wall 40 and further penetrates the plate 80 and is attached to the door frame 24.

  The anti-vibration rubber 50 is sandwiched between the plate 80 and the support fitting 82. By adjusting the position of the nut 84 disposed on the plate 80, the length between the plate 80 and the support fitting 82 can be adjusted. As a result, the amount of compression of the anti-vibration rubber 50 can be adjusted.

  The support fitting 82 has a hole larger than the bolt 78. The bolt 78 penetrates the hole through the rubber washer 52. Thus, the bolt 78 is held by the support fitting 82 via the rubber washer 52. The amount of compression of the rubber washer 52 is adjusted by the position of the nut 86 in contact with the rubber washer 52.

  The anti-vibration rubber 50 is attached to the bottom plate 50a (not shown) by adhesion or the like, as in FIG. The bottom plate 50a is attached to the support fitting 82 by bolts (not shown). The flange 82a of the support fitting 82 is fixed to the outer wall 40 by a bolt (not shown).

  Therefore, as shown in FIG. 8, it is possible to prevent the solid propagation noise only in the door of the building to improve the soundproofing performance, and as shown in FIG. 7, to prevent the solid propagation sound of the door installed on the sound insulation wall. It is also possible to improve the soundproofing performance.

  An example of the shielding plate 62 is shown in FIG. The shield plate 62 can not be made very thick because the processability is deteriorated. Therefore, there is a high possibility that an unnecessary sound is generated when the vibration propagates, as compared with other places of the door. In order to suppress the occurrence, for example, a reinforcing material 62a as shown in FIG. 9 is attached to the shielding plate 62 by welding or the like. That is, the plate-like (rib-like) reinforcing material 62a is attached to the shielding plate 62 made of a steel plate to suppress the vibration of the shielding plate 62, thereby preventing the generation of sound. The shielding plate 62 is attached to the door frame 24 by bolts 62 b.

  FIG. 10 shows a schematic configuration of a soundproof door according to another embodiment of the present invention. The door panel 34 is usually a sound insulation panel, and a cement board may be used as the sound insulation panel. When a cement board is used, the door panel 34 is heavy, so the load on the hinge is large when the door is opened and closed. Then, the caster attachment leg to which the caster was fixed is attached to the door panel surface of the open side of a door.

For example, as shown in FIG. 10, a caster 112 with a rubber tire 110 is attached to a door 22 shown in FIG. 1 via a caster attachment leg 114. In this case, the door 22 can be opened and closed while receiving the load of the door 22 by the foundation 37, and the vibration is attenuated by the rubber tire 110, so the vibration is transmitted from the floor to the door 22 to generate a solid propagation sound. I have nothing to do. Further, by using the rubber tire 110, there is no hindrance to the opening and closing of the door 22 even if the floor surface has some unevenness. In addition, since the load on the hinge is reduced, it is possible to prevent problems such as a reduction in durability and an inability to perform smooth opening and closing.

Next, various configuration examples of the door panel 34, that is, the sound insulation panel 34 will be described. FIG. 11 shows various configuration examples of the sound insulation panel 34 according to the present invention.
The sound insulation panel 34 may have any sound insulation property. For example, cement boards (also called "slate boards") can be used. The cement board has a cement and a fibrous material.

  The one shown in FIG. 11 (a) is the one shown in FIG. The sound insulation panel 34 shown in this figure and FIG. 1 is one in which a cement plate 97 is inserted in a panel frame 88 made of steel plate, and the sound insulation panel 34 is attached to the panel frame 88 made of steel plate. As shown in the figure, for the sound insulation panel 34, the sound insulation can be enhanced by using a cement plate 97 having a large density.

As another example shown in FIG. 11 (b), the sound insulation panel 128 of the soundproof door has a steel plate 98 covering the entire outside and a filler 100 filled in the steel plate 98. As a filler, relatively high density glass wool (about 32 kg / m ³ ) or rock wool (about 80 kg / m ³ ) is used.

In still another example shown in FIG. 11C, the sound insulation panel 128a arranges a cement plate 97 inside a steel plate 98 covering the entire outside.
In addition, the surface of a sound insulation panel can be made suitable for design, such as matching with the outer wall of a building, or making it a finish close | similar to a general door.

  FIG. 12 shows still another various configuration example of the sound insulation panel according to the present invention. In FIG. 12, the entire steel plate 98 of the sound insulation panel 128 is a multi-layered panel composed of the vibration control steel plate 102 and the sound insulation sheet 104. These arrange | position the damping steel plate 102 in outermost layer, arrange | position the sound insulation sheet 104 in the inner side, and sound insulation performance falls somewhat. However, to make the door as light as possible, the portion of the steel plate on the front side of the sound insulation panel is a thinner damping steel plate 102. And in order to compensate the fall of sound insulation performance, a sound insulation panel is a multilayer panel.

As a material of the sound insulation sheet, polyvinyl chloride resin, plastic, rubber plate or the like can be used.
In the sound insulation panel of FIG. 12A, by installing the cement plate 97 inside the sound insulation sheet 104, the sound insulation property does not decrease while reducing the mass. The sound insulation panel of FIG. 12 (b) is obtained by stuffing a filler 106 such as glass wool inside the sound insulation sheet 104.
The sound insulation panel of FIG. 12 (c) includes a cement board 97a thinner than that of the sound insulation panel of FIG. 12 (a) inside a sound insulation sheet 104 similar to the sound insulation panel of FIG. 12 (a). By arranging the filler 106 around the cement board 97a, the sound insulation property is not reduced while reducing the mass.

  In the embodiment shown in FIG. 1, the vibration isolation device 28 is installed at the lower part of the door frame 24, but it is also possible to install the vibration isolation device 28 at the upper part of the door frame 24. In this case, the door frame 24 is suspended at the opening of the wall via the vibration control device 28. Then, the anti-fall device 30 is installed at the lower part of the door frame 24. The configuration of the anti-vibration device 28 is the same as that of FIG. 6, and the configuration of the anti-fall device 30 is the same as that of FIG. For example, the length of the anti-vibration rubber 42 is set by the number of the spacers 44 so that the anti-vibration rubber 42 receives a predetermined compression.

  By the way, in the present invention, the following additional configuration may be applied to the soundproof door. By attaching a reinforcing material such as a turnbuckle or a diagonal to the door panel of FIG. 1 etc., even a heavy door panel using a cement board can have sufficient strength not to be deformed.

In addition, by doubling the door packing, it is possible to improve the sound insulation, the dustproofness, and the rainwater sealability (drip resistance).
In addition, the door can be configured to be removable by setting the hinge as a removable hinge that can be inserted and removed at the shaft portion. When loading and unloading large equipment through the door in the machine room etc., work becomes easy.

In addition, a key can be attached to the door to improve security, or a rod that interlocks with the handle to fix the door to the floor can be attached to the door. By fixing the rod to the hole provided in the floor surface, the closed state of the door becomes stronger and the sound insulation is enhanced.
As described above, the present invention has the following aspects.
[Form 1]
The mounting structure of the door frame for mounting the door frame,
A door frame in which the door is installed,
A first anti-vibration portion including a first anti-vibration material and attaching the door frame to the door frame receiving portion via the first anti-vibration material, wherein the door and the door frame receive a load A first vibration isolation unit capable of
The door frame is attached to the wall through the second vibration isolation material, and the second vibration isolation portion is provided to prevent the door frame from falling over. Door frame mounting structure.
[Form 2]
The door frame mounting structure according to the first aspect, further comprising: a shielding portion that inhibits ventilation in the first vibration isolation portion.
[Form 3]
The attachment structure of a door frame according to the aspect 1 or 2, wherein the second vibration-proof material is in a compressed state.
[Form 4]
The installation of the door frame according to any one of the modes 1 to 3, wherein the wall is an outer wall of a building, and the door frame receiving portion and the door frame are disposed at an opening of the outer wall of the building. Construction.
[Form 5]
The above-mentioned wall is an outer wall of a building, and the above-mentioned door frame receiving part and the above-mentioned door frame are arranged at the opening of a sound insulating wall installed outside the outer wall of the building. Mounting structure of the door frame described in.
[Form 6]
In any one of the modes 1 to 5, further comprising a stopper disposed between the door frame and at least one of the door frame receiving portion and the wall and restricting the movement of the door frame. Door frame mounting structure.
[Form 7]
A door frame is attached to the door frame receiving portion via the first vibration isolation material by a first vibration isolation portion including a first vibration isolation material, the first vibration isolation portion comprising a door and the door frame Can receive a load of
And
The door frame is attached to the wall via the second vibration isolation material by a second vibration isolation portion including a second vibration isolation material, and the second vibration isolation portion prevents the door frame from tipping over And
Installing the door on the door frame.

Claims (5)

The mounting structure of the door frame for mounting the door frame,
A door frame in which the door is installed,
A first anti-vibration portion including a first anti-vibration material and attaching the door frame to the door frame receiving portion via the first anti-vibration material, wherein the door and the door frame receive a load A first vibration isolation unit capable of
And a second anti-vibration portion that includes a second anti-vibration material, attaches the door frame to a wall via the second anti-vibration material, and prevents the door frame from falling over.
The first anti-vibration portion is located outside the lower portion of the door frame in the vertical direction,
The second vibration isolation unit is located outside in the horizontal direction with respect to the upper portion of the door frame ,
The door frame mounting structure according to claim 1, wherein the wall is an outer wall of a building, and the door frame receiving portion and the door frame are disposed at an opening of a sound insulating wall installed outside the outer wall of the building .   The door frame mounting structure according to claim 1, further comprising a shielding portion that inhibits air flow in the first vibration isolation portion.   The door frame mounting structure according to claim 1, wherein the second vibration-proof material is in a compressed state.   The stopper according to any one of claims 1 to 3, further comprising: a stopper disposed between the door frame and at least one of the door frame receiving portion and the wall, which restricts the movement of the door frame. Mounting structure of the door frame described. A door frame is attached to the door frame receiving portion via the first vibration isolation material by a first vibration isolation portion including a first vibration isolation material, the first vibration isolation portion comprising a door and the door frame It is possible to receive the load of
The door frame is attached to the wall via the second vibration isolation material by a second vibration isolation portion including a second vibration isolation material, and the second vibration isolation portion prevents the door frame from tipping over And
Installing the door in the door frame;
The first anti-vibration portion is located outside the lower portion in the vertical direction with respect to the lower portion of the door frame,
The second vibration isolation unit is located outside in the horizontal direction with respect to the upper portion of the door frame ,
The method for mounting a door frame according to claim 1, wherein the wall is an outer wall of a building, and the door frame receiving portion and the door frame are disposed at an opening of a sound insulating wall installed outside the outer wall of the building .

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