JP2016050440A - Fitting structure and fitting method for door frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heavy door of high sound insulation property that insulates airborne sound and reduces vibration conveyed to the door through a structure from an object other than the door, such as a machine in a room, and therefore reduces solid-borne sound dissipated into air through the door.SOLUTION: A door 22 is installed in a door frame 24. The door frame 24 is fitted on a door frame receiving part 26 using a vibration control device 28, with a vibration control rubber in between. The vibration control device 28 withstands a load of the door 22 and the door frame 24. A toppling prevention device 30 is used for fitting the door frame 24 on a wall with the vibration control rubber in between, for preventing the door frame 24 from toppling.SELECTED DRAWING: Figure 1

Description

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

  When installing a soundproof door in a machine room or the like, it is necessary to consider two ways of sound transmission. That is, it is necessary to block air-propagating sound that is transmitted through the air by vibrating air and solid-propagating sound that is transmitted as vibration on the floor or wall. Solid-propagating sound is transmitted from the wall to the soundproof door through the door support, such as a soundproof door hinge, and the vibration is changed into sound at the door panel and radiated into the air. is there. For example, noises and vibrations generated by the operation of pumping stations for transferring, draining, or pressurizing fresh water, sewage, and other liquids, and other mechanical equipment propagate to the outside as air propagation sound and solid propagation sound.

  In such a case, in order to obtain a predetermined soundproofing performance, two functions of sound insulation of air propagation sound and reduction of solid propagation sound by vibration isolation are required. In addition, when a soundproof door is supported in a vibration-proof manner, an earthquake countermeasure different from that of a general door is required, and it may be required to have a mechanism for that purpose.

The conventional soundproof door is aimed at sound insulation of the air propagation sound, and the sound insulation is enhanced by thickening the door panel of the door or filling the door panel with a sound absorbing material.
FIG. 13 shows a general conventional soundproof door intended only for sound insulation of air propagation sound. 13 (a) is a front view, FIG. 13 (b) is a longitudinal sectional view as seen in the AA direction of FIG. 13 (a), and FIG. 13 (c) is a transverse view as seen in the BB direction of FIG. 13 (a). FIG. A door panel 10 is attached to a door frame 14 by a hinge 12. The door panel 10 is filled with a filler 16 such as glass wool for sound insulation. That is, the door panel 10 enhances sound insulation by sandwiching a sound absorbing material such as glass wool between two steel plates. A door packing 18 using an elastic body for preventing sound leakage is provided at a portion where the door panel 10 and the door frame 14 come into contact with each other. That is, in order to prevent sound waves from leaking through the gap between the door panel 10 and the door frame 14, a door packing 18 using an elastic body such as rubber is provided.

  Such a soundproof door can exhibit a predetermined sound insulating property against air propagation sound, but when the vibration of the device is propagating to the door, it prevents solid propagation sound generated from it. I can't. Therefore, even if the air propagation sound is sufficiently insulated, the noise may not be reduced to the target noise value due to the generation of the solid propagation sound.

  On the other hand, depending on the location where the door is installed, in order to further improve sound insulation, not only the air tightness and the noise transmitted through the door panel are suppressed, but also the noise generated by opening and closing the door (a kind of “solid propagation sound”) ) May need to be suppressed. For this reason, the prior art has devised the following literature.

  In patent document 1, the structure which affixes a vibration-proof material on the attachment metal fitting of a door frame, and is vibration-proof is disclosed. An object of the present invention is to prevent generation of vibration and impact sound due to opening and closing of a door. In other words, it is an object to prevent noise generated from the door itself from diffusing outside the door (for example, in an adjacent room).

In Patent Document 1, the door frame is in contact with the wall body via the vibration isolator at the place where the mounting bracket is attached. In addition to this place, the door frame is in contact with the wall body through a waterproof material made of an elastic material to avoid vibration propagation at a place where the door frame is in contact with the wall body. However, in this structure, the elastic material receives the load of the door so that the frictional force against 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. . Therefore, a heavy door cannot be installed.

  In Patent Document 2, a door frame mounting structure for a partition panel is devised in which a vibration isolating material is provided between the door frame and the opening over the entire periphery of the door frame. It is intended for relatively lightweight doors for partition panels. The object and the effect are the same as in Patent Document 1.

  Patent Document 3 discloses a door frame mounting structure characterized in that a buffer material is provided over the entire periphery of the door frame between the door frame and the opening of the building, as in Reference 2. The purpose and effect are the same as in Document 1. The purpose is to prevent noise propagation to the adjacent rooms and upper and lower floors, and relates to doors installed in buildings.

  Patent Documents 1 to 3 are all intended to prevent vibration generated from the door itself (vibration due to door opening and closing, etc.) from being generated as noise in a location other than the door (for example, in an adjacent room). The door itself is a normal door. Therefore, no countermeasure is taken against noise that propagates from the noise source inside the room (inside the room) through the door itself to the outside (outside the room).

  In Patent Document 4, one soundproof door is constituted by two door panels, and solid propagation sound is removed by supporting one of the two door panels so as to surround the periphery of the door panel with a vibration isolating material. A soundproof door is disclosed. Since the vibration-proof material is not exposed on the door surface, Patent Document 4 is also excellent in fire resistance. An object of the present invention is to provide a structure for blocking noise from outside in a studio or the like, and to suppress vibration generated in the door panel due to sound entering from the outside to the door panel by the structure. Noise is prevented 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 soundproof measure in case solid propagation sound is radiated outside.

  Patent Document 5 discloses a structure for attenuating vibrations generated in a door by constituting a column to which a hinge of a door is attached by using anti-vibration rubber at two upper and lower portions of the column following the column. The anti-vibration rubber cuts off the sound and vibration associated with opening and closing the door. However, in this structure, since a load is not applied vertically (in the direction of gravity) to the anti-vibration rubber and a force in the bending direction may be applied, it is difficult to attach a heavy door. Moreover, in order to exhibit appropriate vibration-proof performance, it is necessary to adjust the compression amount of the upper and lower vibration-proof rubbers, but the structure of Patent Document 5 is difficult.

JP-A-8-218737 JP-A-5-263567 JP-A-7-305568 Shokai 61-56488 Shokai Akira 63-10111

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

  In the vibration proof structure in which the cushioning material is simply sandwiched as in the prior art, there is a problem that it is difficult to adjust the vibration proof performance in accordance with the frequency of vibration to be damped. Conventional anti-vibration technology is mainly intended to block vibrations that occur when doors are opened and closed, but is suitable as a vibration-isolating device for reducing solid-propagating sound generated by vibrations transmitted to the door from the outside. It is difficult to design.

  The present invention is a heavy-duty door with high sound insulation properties, which blocks air propagation sound and reduces vibrations transmitted from the machine other than the door, for example, from the indoor machine to the door through the structure. A door with reduced solid-borne sound is provided.

  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 a door is installed, and a first vibration isolating material, wherein the first vibration isolating material is A first anti-vibration unit for attaching the door frame to the door frame receiving unit via the first anti-vibration unit capable of receiving a load of the door and the door frame, and a second anti-vibration material The door frame is attached to the wall via the second vibration isolating material, and the door frame has a second vibration isolating portion that prevents the door frame from overturning.

  The load of the door main 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 isolator, the 2nd vibration isolator which is a fall prevention with a vibration isolating function is provided.

A plurality of first vibration isolation parts can be installed discontinuously, that is, discretely, between the door frame receiving part and the door frame. It is good also as one continuous anti-vibration part.
The first vibration isolating material and the second vibration isolating material are materials having a function of damping vibrations, or devices composed of such materials, for example, anti-vibration rubber.

  In this invention, it is preferable to have the shielding part which inhibits ventilation | gas_flowing in a said 1st vibration isolator. When the first vibration isolator is discontinuously arranged, the door frame holder other than the place where the first vibration isolator is installed is prevented by blocking the ventilation in the first vibration isolator by the shielding unit. Sound can be prevented from leaking between the part and the door frame. Further, the shielding plate can prevent the first vibration isolator from being exposed to direct sunlight or wind and rain.

The material of the shielding part is, for example, a steel plate or an elastic material.
Further, it is possible to further improve the sound insulation by arranging an elastic sealing material between the door frame receiving portion and the shielding plate.

  The second vibration isolator is preferably in a compressed state. The anti-vibration material such as anti-vibration rubber and rubber washer, which is the second anti-vibration material, is compressed by tightening a bolt or the like. This is because the anti-vibration effect is maintained even when wind pressure is applied to the door and the door frame moves horizontally.

In addition, the said wall is an outer wall of a building, and the said door frame receiving part and the said door frame can be arrange | positioned in the opening part of the outer wall of the said building.
As another embodiment, the wall is an outer wall of a building, and the door frame receiving portion and the door frame can be arranged in an opening of a sound insulating wall installed outside the outer wall of the building.

  Further, as a countermeasure in the event of an earthquake or the like, a stopper (earthquake resistant stopper) that is disposed between at least one of the door frame receiving portion and the wall and the door frame and restricts the movement of the door frame in the event of an earthquake or the like It is good also as providing.

  According to the door frame mounting method according to the present invention, the door frame is attached to the door frame receiving portion via the first vibration isolator by the first vibration isolator including the first vibration isolator, The first vibration isolator can receive a load of the door and the door frame, and the second vibration isolator including the second anti-vibration material causes the wall to pass through the second vibration isolator. The door frame is attached to the second frame, and the second vibration isolating unit prevents the door frame from overturning and installs the door on the door frame.

The present invention is preferably applied to, for example, a door facing the outside of a machine room that generates noise and vibration.
Furthermore, the following functions and characteristic structures can be added to the present invention.
-The door panel of the door can be made of cement board to give high sound insulation. The cement board is made of a material similar to the building outer wall and can match the appearance of the building.
-Reduce the weight of door panels by changing the materials and configuration of the door panels. Thereby, the load applied to the structure and place where the door is installed and the hinge can be reduced.
-By providing a reinforcing material (turn buckle or bracing) on the door panel, the door panel can be reinforced when the door mass is large.
・ Install casters on the doors. Thereby, the load applied to the hinge can be reduced. If the wheels of the casters are made of rubber tires, they are also vibration proof, and it is possible to use heavy doors even in uneven areas.
-By double the door packing, it is possible to improve the sound insulation, dustproof and rainwater sealing.
-Rainwater that has entered the door frame can be drained by providing a rainwater escape hole in the door frame located at the bottom of the door.
-When a hinge that can be inserted and removed is used, the door can be detached, which is convenient when a wide opening is required for loading and unloading the machine.
-A door lock function can be added to a door by attaching a key or a rod rod inserted into a hole provided in the ground to the door. 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. 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 part B shown in FIG. FIG. 6 is a detailed view of the vibration isolator 28. FIG. 7 is a diagram illustrating an example in which the door frame mounting structure is applied to a part of the sound insulating wall. FIG. 8 is a diagram illustrating an example in which the door frame mounting structure is applied to a door of a building. FIG. 9 is a diagram illustrating an example of the shielding plate 62. FIG. 10 is a diagram showing a schematic configuration of a door frame mounting structure according to another embodiment of the present invention. FIG. 11 is a diagram showing various configuration examples of the door panel according to the present invention. FIG. 12 is a diagram showing still another various configuration examples of the door panel according to the present invention. FIG. 13 is a diagram showing a conventional soundproof door intended only for sound insulation of air propagation sound.

Embodiments of the door frame mounting structure according to the present invention will now be described in detail with reference to the accompanying drawings. In the following, the same reference numerals are assigned to the same members.
FIG. 1 is a diagram 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 isolation unit that attaches the door frame 24 to the door frame receiving portion 26 via a vibration isolation rubber (first vibration isolation material). The door frame 24 is attached to the wall via the vibration isolator 28 and the vibration isolating rubber (second vibration isolating material) to prevent the door frame 24 from toppling over. Device 30.

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

The door frame 24 and the door frame receiving portion 26 are arranged in an opening such as an outer wall of a building. The door frame receiving part 26 is fixed on the foundation 37 of the opening.
An earthquake-resistant stopper 38 is disposed between the door frame receiving portion 26 and the door frame 24. The earthquake-resistant stopper 38 restricts the movement of the door frame 24 during an earthquake or the like.

  Details of the door frame mounting structure 20 are shown in FIGS. FIG. 2 is a front view of the mounting structure shown in 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 part B shown in FIG.

  As shown in FIGS. 2 and 3, the door frame 24 is anti-vibrated by the anti-vibration device 28 in a state where the door 22 is attached to the inner side of the door frame 24, and the door frame 24 is prevented from falling down. The apparatus 30 is installed so that the door frame 24, the outer wall 40 of a building, etc. may be connected. In FIG. 1, four anti-vibration devices 28 are installed symmetrically at the bottom of the door frame 24. Two fall-prevention devices 30 are installed, one on each of the upper and left sides of the door frame 24.

The vibration isolator 28 includes a vibration isolating rubber 42, a spacer 44, and a bottom plate 46. The anti-vibration rubber 42 adjusts the height to be installed by the spacer 44. The details are shown in FIG.
The anti-vibration rubber 42 is attached to the metal plate 42a. In FIG. 6, there are three spacers 44 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 bolts 48c and nuts 48d.

  As a mounting procedure, the bottom plate 46 is fixed to the door frame receiving portion 26. Next, the anti-vibration 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 with the height adjusted by 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 with bolts 48a and nuts 48b. Finally, the nut 48f is fixed to the bolt 48e.

Anti-vibration rubber materials include silicone rubber, natural rubber, chloroprene rubber, and urethane rubber.
The anti-falling device 30 shown in FIG. The fall-preventing device 30 includes an anti-vibration rubber 50 and a rubber washer 52. The fall-preventing device 30 is characterized in that a rubber washer is installed so as to prevent vibration from being transmitted to the door frame through a fastening member such as a bolt used for fixing and supporting.

The fall prevention device 30 includes a bolt 54 for adjusting the length, a vibration isolating rubber 50, a rubber washer 52, and plates 56a, 56b, and 56c for holding them. The length adjusting unit 58 is fixed to a necessary length by the bolts 54 for adjusting the length and nuts 60a and 60b attached to both ends of the length adjusting unit 58. By adjusting the length of the length adjusting unit 58, the amount of compression of the anti-vibration rubber 50 can be adjusted.

  One end of the bolt 54 for adjusting the length is extended to the side of the anti-vibration rubber 50 and passes through two plates 56b and 56c that sandwich the anti-vibration rubber 50. Of the two plates, a hole larger than the bolt 54 is formed in the plate 56c opposite to the length adjusting portion 58. After passing the bolt 54 through the hole, the rubber washer 52 and the nut 60 c are attached to the bolt 54. As a result, the bolt 54 is held via the rubber washer 52 on the penetrating plate 56c. The amount of compression of the rubber washer 52 is adjusted by the position of the nut 60c in contact with the rubber washer 52.

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

The plate 56 a of the anti-falling device 30 is welded to the support fitting 70, and the support fitting 70 is welded to the door frame 24.
With respect to the vibration isolating rubber 42 of the vibration isolating device 28, considering the mass of the door 22 and the door frame 24 supported by the vibration isolating rubber 42 and the frequency of the vibration to be anti-vibrated, an appropriate natural frequency is isolated after installation. The spring constant of the anti-vibration rubber 42 is selected so that the rubber 42 has. Further, the anti-vibration rubber 50 and the rubber washer 52 of the fall-preventing device are compressed by tightening with the nuts 60b and 60c so that a load is applied to the rubber in a pseudo manner.

  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 from the compression amount 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 tightening by the nuts 60b and 60c. 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 the vibration to be anti-vibrated. 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 isolator can be designed according to the frequency of the vibration to be anti-vibrated, for example, if the frequency of the vibration generated from a nearby machine is known, the vibration is efficiently prevented. be able to.

  Further, when 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-preventing device 30 are compressed in advance with bolts 60b and 60c. deep. As a result, even if the position of the door 22 is slightly moved by the wind pressure, either the vibration isolating rubber 50 or the rubber washer 52 increases in compression amount and decreases in the other compression amount. If so, both remain compressed. In general, an anti-vibration rubber cannot exhibit an anti-vibration performance unless it is compressed by a length determined for each product. If the compression is not performed in advance, if the compression amount of either the vibration isolating rubber 50 or the rubber washer 52 is reduced or excessively reduced depending on the wind pressure, the necessary vibration isolating performance cannot be exhibited, and the vibration propagates to the door panel 34. Solid propagation sound may occur. According to the present invention, such a problem can be prevented.

2 includes a bolt 38b attached to a pedestal 38a fixed to the door frame receiving portion 26, and nuts 38c and 38d attached to the tip of the bolt 38b penetrating the door frame 24. A hole larger than the diameter of the bolt is opened in the door frame 24 so that the bolt 38 b does not contact the door frame 24 at a location where the bolt 38 b penetrates the door frame 24.

  Since the soundproof door according to the present invention is provided with a vibration isolating device composed of a vibration isolating rubber or the like on the door frame, it is easier to swing than a normal soundproof door when an earthquake occurs. Therefore, as shown in Fig. 2, by installing an anti-seismic stopper, even if it sways more than the normal use during an earthquake, it can be suppressed within the sway width limited by the anti-seismic stopper, and the door and vibration isolator Damage can be prevented.

  In the embodiment shown in FIGS. 1 to 6, the earthquake-resistant stopper is arranged only between the door frame receiving portion and the door frame. However, the earthquake-resistant 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 earthquake-resistant stopper is disposed between the wall and the door frame, the earthquake-resistant stopper is preferably installed between the plate 56b and the plate 56c of the fall prevention device 30 shown in FIG.
The structure of the earthquake resistant stopper is the same as that of the earthquake resistant stopper 38 shown in FIG. In other words, the earthquake-resistant stopper has a bolt attached to a pedestal fixed to the plate 56c and two nuts attached to the tip of the bolt passing through the plate 56b. A hole larger than the bolt diameter is opened in the plate 56b so that the bolt passes through the plate 56b so as not to contact the plate 56b. By installing such an earthquake-resistant stopper, it is possible to suppress the swing of the door frame 24 regardless of which of the left and right directions in FIG. Note that the base can be replaced with a nut by fixing a nut for replacing the base different from the two nuts to the bolt at a position corresponding to the top of the base. The bolt is fixed directly to the plate 56c.

  The vibration isolator 28 that receives the load of the door frame 24 is not installed all around along the outer periphery of the door frame 24, but is installed at several locations below the door frame 24. Sound waves leak from areas that do not. In order to prevent this, a shielding plate 62 as shown in FIG. 3 is installed.

  As shown in FIG. 3, a shielding plate 62 is attached to both the front surface and the back surface of the door 22 or one side so as to close a 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 the door frame 24. A buffer material 64 is attached to 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 buffer material 64 can be an elastic sealing material which is a kind of vibration-proof material that does not transmit vibration. The elastic sealant is a silicon sealant or a polysulfide sealant.

  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. Thereby, a gap formed between the door frame 24 and the door 22 is closed to prevent sound waves from leaking, and an impact sound 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 vibration generated by machine operation and the like from propagating from the door support portion to the door panel, and to reduce solid sound generated from the door panel. Further, the air propagation sound is prevented from leaking from around the vibration isolator that receives the load of the door frame by the shielding plate.

  The door frame mounting structure 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 can be applied to the door of the building as shown in FIG. You can also. Between them, the structure and fixing method of the anti-falling device are different. When applied to a part of the sound insulation wall shown in FIG. 7, the fall-preventing device 30 shown in FIG. 3 or the like is fixed as described above. That is, the fall prevention 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 in the opening 72a 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. Thereby, a double door is constituted, sound insulation is enhanced, and generation of solid propagation sound can be suppressed.

  When applied to the door of the building shown in FIG. 8, the door frame receiving portion 26 and the door frame 24 are arranged in the opening 40 a of the outer wall 40 of the building. The fall-preventing device 30a includes a bolt 78, an anti-vibration rubber 50, a rubber washer 52, and a plate 80 for holding them. The bolt 78 passes through the support fitting 82 fixed to the outer wall 40, passes through 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 compression amount of the vibration isolating rubber 50 can be adjusted.

  The support fitting 82 has a hole larger than the bolt 78. The bolt 78 passes through the hole through the rubber washer 52. Thereby, 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 a bottom plate 50a (not shown) by bonding or the like, as in FIG. The bottom plate 50a is attached to the support fitting 82 with bolts (not shown). The support fitting 82 has a flange portion 82a fixed to the outer wall 40 by a bolt (not shown).

  Therefore, as shown in FIG. 8, it is possible to improve the soundproofing performance by preventing the solid propagation sound only for the door of the building, and also prevent the solid propagation sound of the door installed on the sound insulation wall as shown in FIG. Thus, the soundproofing performance can be improved.

  FIG. 9 shows an example of the shielding plate 62. Since the shielding plate 62 has poor workability, it cannot be made too thick. Therefore, there is a high possibility that unnecessary sound is generated when vibration propagates as compared with other portions 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, a plate-shaped (rib-shaped) reinforcing member 62a is attached to the shielding plate 62 made of steel plate, and the vibration of the shielding plate 62 is suppressed to prevent the generation of sound. The shielding plate 62 is attached to the door frame 24 with bolts 62b.

  FIG. 10 shows a schematic configuration of a vibration-proof 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 the cement board is used, the door panel 34 becomes heavy, so that a load applied to the hinge when the door is opened and closed is large. Therefore, a caster mounting leg to which the caster is fixed is attached to the door panel surface on the door opening side.

For example, the caster 112 with the rubber tire 110 is attached to the door 22 shown in FIG. 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 that the vibration propagates from the floor surface to the door 22 and a solid propagation sound is generated. There is nothing. Further, by using the rubber tire 110, there is no hindrance to opening and closing the door 22 even if the floor surface has some unevenness. Further, since the load on the hinge is reduced, problems such as a decrease in durability and the inability to smoothly open and close are prevented.

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 only needs to have sound insulation properties. For example, a cement board (also called “slate board”) can be used. The cement board has cement and a fibrous raw material.

  What is shown in FIG. 11A is that shown in FIG. The sound insulation panel 34 shown in this figure and FIG. 1 is obtained by inserting a cement plate 97 into 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 this figure, the sound insulation panel 34 can be improved in sound insulation by using a cement plate 97 having a high density.

As in 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 the filler, glass wool with a relatively high density (about 32 kg / m ³ ) or rock wool (about 80 kg / m ³ ) is used.

In yet another example shown in FIG. 11C, the sound insulation panel 128a has a cement plate 97 disposed inside a steel plate 98 covering the entire outside.
In addition, the surface of the sound insulation panel can be made suitable in terms of design, such as matching the outer wall of a building or finishing like a general door.

  FIG. 12 shows still another various configuration examples 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 formed into a multi-layer panel composed of the damping steel plate 102 and the sound insulation sheet 104. In these, the damping steel plate 102 is arranged in the outermost layer, and the sound insulation sheet 104 is arranged inside thereof, and the sound insulation performance is slightly lowered. However, in order to make the door as light as possible, the steel plate portion on the front side of the sound insulation panel is a thinner damping steel plate 102. And the sound insulation panel is a multilayer panel in order to compensate for the fall of sound insulation performance.

As the material of the sound insulation sheet, vinyl 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 is not lowered while reducing the mass. The sound insulation panel of FIG. 12B is obtained by filling a sound insulation sheet 104 with a filler 106 such as glass wool.
The sound insulation panel of FIG. 12C includes a cement board 97a thinner than the sound insulation panel of FIG. 12A inside a sound insulation sheet 104 similar to the sound insulation panel of FIG. By disposing the filler 106 around the cement plate 97a, the sound insulation is not lowered while reducing the mass.

  In the embodiment shown in FIG. 1, the vibration isolator 28 is installed in the lower part of the door frame 24, but the vibration isolator 28 can also be installed in the upper part of the door frame 24. In this case, the door frame 24 is suspended from the opening of the wall via the vibration isolator 28. The fall prevention device 30 is installed at the lower part of the door frame 24. The structure of the vibration isolator 28 is the same as that of FIG. 6, and the structure of the fall prevention 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 this invention, you may give the following additional structures to a soundproof door. By attaching a reinforcing material such as a turnbuckle or diagonal to the door panel shown in FIG. 1 or the like, it is possible to provide sufficient strength to prevent deformation even with a heavy door panel using a cement board.

Moreover, sound insulation, dustproofness, and rainwater sealability (dripproofness) can be improved by duplicating the door packing.
Moreover, it can also be set as the structure which can remove a door by setting it as the insertion / extraction hinge which can be inserted / extracted in the part of a shaft. When a large device is carried in / out through a door in a machine room or the like, the operation becomes easy.

  In addition, it is possible to improve the security by attaching a key to the door, or to attach a rod rod that fixes the door to the floor surface in conjunction with the handle. The rod bar is fixed in a hole provided on the floor surface, so that the closed state of the door becomes stronger and the sound insulation is improved.

Claims (7)

A door frame mounting structure for mounting a door frame,
A door frame on which the door is installed;
A first anti-vibration part including the first anti-vibration material and attaching the door frame to the door frame receiving part via the first anti-vibration material, and receiving a load of the door and the door frame A first vibration isolator capable of
A second anti-vibration unit including a second anti-vibration material, the second anti-vibration unit attaching the door frame to the wall via the second anti-vibration material, and preventing the door frame from overturning. Door frame mounting structure.   The door frame mounting structure according to claim 1, further comprising a shielding portion that inhibits ventilation in the first vibration isolation portion.   The door frame mounting structure according to claim 1 or 2, wherein the second vibration isolator is in a compressed state.   4. The 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 in an opening of the outer wall of the building. 5. Mounting structure.   The said wall is an outer wall of a building, The said door frame receiving part and the said door frame are arrange | positioned in the opening part of the sound insulation wall installed in the exterior of the outer wall of the said building, Any one of Claim 1 to 3 characterized by the above-mentioned. A mounting structure of the door frame according to the above.   6. The apparatus according to claim 1, further comprising a stopper that restricts movement of the door frame, which is disposed between at least one of the door frame receiving portion and the wall and the door frame. The door frame mounting structure described. A door frame is attached to the door frame receiving portion via the first vibration isolating material by a first vibration isolating portion including the first vibration isolating material, and the first vibration isolating portion includes the 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 isolating material by the second vibration isolating portion including the second vibration isolating material, and the second vibration isolating portion prevents the door frame from toppling over. And
The door frame is installed on the door frame.

Images