JP2010229674A - Sealing-soundproof door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sealing-soundproof door which enhances adhesion of a surface of contact with a door even in the absence of a connecting portion pressing the surface of contact with the door against packing, annexed to a door frame, by expanding/contracting the surface of contact with the door, which improves sealing-soundproof properties by employing a shape eliminating the waviness of the surface of contact, which enhances durability and weatherability. <P>SOLUTION: The packing (6) includes: a main elastic member (17) which is formed of a first elastic member (12) of a plate-like body, elongated in such a manner that a first circumferential surface (11) is provided in the side end direction of the door (2) from a base (8), a second elastic member (14) of a plate-like body, elongated in such a manner that a second circumferential surface (13) is provided in the side end direction of the door from the base, and a third elastic member (16) of a plate-like body, connecting the first and second elastic members together by means of a third circumferential surface (15), and which abuts on the surface of the door in closing of the door; and an auxiliary elastic member (19) of a plate-like body, which is elongated in such a manner that a fourth circumferential surface (18) is provided in the direction of the central portion of the door from a predetermined position on the first circumferential surface of the first elastic member, and which abuts on the surface of the door in closing of the door. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a hermetic / soundproof door, and more particularly to a shape of a pressure-bonding member (hereinafter referred to as packing) that is provided between a door and a door frame to enhance hermetic / soundproofing.

Conventionally, various technologies have been proposed regarding a packing technology that is provided between a door and a door frame of a hermetic / soundproof door to enhance hermetic / soundproofing properties.
As a technique related to such packing, a technique described in Patent Document 1 is known.
Patent Document 1 discloses a packing technique used for a steel door, and this crimping member is attached to a door frame so as to form a seal along the four sides of the outer periphery of the door when the door is closed. There is a base portion (fixed portion) fitted in a recess (groove) formed in the door frame, and a contact surface made of a thin plate-like magnet disposed on the distal end side.
When the door is closed, the surface (contact surface) of the thin plate magnet is in close contact with the outer edge of the door surface, thereby forming a hermetic seal between the door and the door frame to ensure sealing and soundproofing.
When the door to which such a packing is attached is closed, the door surface on the hand side of the door (that is, the side farthest from the hinge member) or the like is from the direction substantially perpendicular to the surface of the thin plate magnet. Since the magnet approaches the magnet, the thin plate-like magnet is surely attracted to the door surface.

  However, on the side of the door hanging side (that is, the side closest to the hinge member), the door surface approaches the thin plate magnet at a shallow angle with respect to the surface of the thin plate magnet, that is, from the lateral direction. As a result, the corner of the door pushes the magnet to the side, the contact surface of the magnet cannot properly adsorb the door surface, the seal seal is missing at this part, it may not be possible to ensure sealing and soundproofing There is a problem.

As a technique for solving this problem, Patent Document 2 discloses a base portion that is attached to an attachment portion provided on a door frame, and an abutting portion that has an elongated contact surface that sealingly contacts the abutting surface of the door. A packing technique is disclosed that includes a connection portion formed of a flexible material that connects the base portion and the contact portion, and the contact surface is inclined in the width direction.
When the door is closed, it is possible to connect the base portion attached to the attachment portion provided on the door frame, the abutting portion having an elongate contact surface hermetically contacting the contact surface of the door, and the base portion and the abutting portion. The connecting portion formed of a flexible material presses the contact surface, and the contact surface is inclined in the width direction, and the corner of the door pushes the contact portion to the side. By forming a hermetic seal between the door and the door frame, sealing and soundproofing are ensured.
Japanese Patent Laid-Open No. 9-122156 Japanese Patent Laid-Open No. 2002-357061

  However, in the hermetic / soundproof door according to Patent Document 2, the abutting portion has a substantially square cross section, and the contact surface of the abutting portion is a belt-like flat surface. Therefore, there is a problem that the contact surface of the contact portion undulates and does not come into sealing contact with the contact surface of the door. In order to solve this problem, the connecting portion formed of a flexible material that connects the base portion and the abutting portion presses the contact surface. It must be a position that goes into the thickness direction of the door. If this position is set so that the corner of the door does not push the abutting part to the side, there is a problem that the waviness of the contact surface cannot be absorbed. There is a problem that the portion is pushed to the side, and in any case, there is a problem that the sealing and sealing properties are lacking and the sealing and soundproofing properties cannot be ensured. Further, the connecting portion that expands and contracts has a problem of stretching or breaking due to durability and weather resistance. For this reason, there is also a problem that the corner portion of the door pushes the contact portion to the side.

  The present invention has been made to solve the above-described problems, and relates to sealing / soundproofing of a sealing / soundproof door, and more particularly, to a packing attached to the door frame between the door and the door frame. The shape that eliminates the connecting part that expands and contracts the contact surface and the shape that eliminates the waviness of the contact surface while improving the adhesion of the contact surface to the door even if the connecting part that expands and contracts is removed. Accordingly, it is an object of the present invention to provide a hermetic / soundproof door that can improve hermeticity and soundproofing, and can further improve durability and weather resistance.

  In order to achieve the above object, a hermetic / soundproof door according to claim 1 is provided with a hinge member, a door attached to the hinge member, which opens and closes around the hinge member, the hinge member is attached, and the door is a hinge. A door frame that houses the door when closed with the member as a center, a fitting groove provided in the door frame, and a crimping member attached to the fitting groove. A base portion having a fitting portion to be fitted in the fitting groove portion on the side, and a base plane on the other side of the base portion, and a first circumferential surface from a predetermined position of the base plane toward the side edge portion of the door And a second circumferential surface extending from the base plane toward the side edge of the door at a predetermined distance from the first elastic member to the side edge of the door. A second elastic member of a plate-like body extended with a first elastic member A main elastic member formed by a plate-like third elastic member connecting the material and the second elastic member with a first circumferential surface and a third circumferential surface continuous to the second circumferential surface; A plate-like sub-elastic member extending from a predetermined position of the first circumferential surface of the elastic member toward the center of the door and having a fourth circumferential surface, and the door includes the hinge member. When the door frame is closed as a center, the secondary elastic member contacts the door surface after the main elastic member contacts the door surface.

  Further, the hermetic / soundproof door according to claim 2 is the hermetic / soundproof door according to claim 1, wherein the subelastic member extending from the first circumferential surface of the first elastic member and the subelastic member are provided. The first elastic member that extends from the extension point has the sub-elastic member arranged and extended toward the center of the door with respect to the perpendicular from the base plane that passes through the extension point. The door is extended in the direction of the side end portion of the door, and the tip of the secondary elastic member and the tip of the main elastic member are extended away from each other.

  According to a third aspect of the present invention, in the hermetic / soundproof door according to the first or second aspect, the outer side of the second elastic member forming the main elastic member and the third elastic member. A plate thickness changing groove is formed on the inner side along a direction orthogonal to the cross section of the main elastic member.

  According to a fourth aspect of the present invention, in the hermetic / soundproof door according to any one of the first or third aspect, at least the first circumferential surface of the first elastic member, the third elastic member. The third circumferential surface and the fourth circumferential surface of the auxiliary elastic member are subjected to a friction reducing process for improving the sliding of the respective circumferential surfaces.

  Further, the sealed / soundproof door according to claim 5 is the sealed / soundproof door according to claim 1 or 4, wherein the door is closed to the door frame around the hinge member. The main elastic member increases the amount of surface contact with the door surface in the center of the door after making line contact with the door surface, and the secondary elastic member makes line contact with the door surface and then the side edge of the door. The amount of surface contact with the surface of the door in the direction is increased.

  Further, a sealing / soundproof door according to claim 6 is the sealing / soundproof door according to claim 1 or 5, wherein when the main elastic member is pressed by the door, the tip of the sub-elastic member. The portion is adapted to approach a perpendicular passing through the extension point of the secondary elastic member with respect to the base plane before pressing.

  Further, a hermetic / soundproof door according to claim 7 is the hermetic / soundproof door according to claim 1 or 6, wherein the pressure-bonding member is formed of EPDM (ethylene propylene rubber). And

  The sealed / soundproof door according to claim 8 is the sealed / soundproof door according to claim 7, characterized in that the hardness of the EPDM is 65 degrees to 75 degrees (Hs).

  A sealed / soundproof door according to claim 9 is the sealed / soundproof door according to claim 1 or 6, wherein the pressure-bonding member is formed of SR (silicone rubber). To do.

  The sealed / soundproof door according to claim 10 is the sealed / soundproof door according to claim 9, wherein the hardness of the SR is 20 degrees to 40 degrees (Hs).

  The sealing / soundproof door according to claim 11 is the sealing / soundproof door according to claim 1 or 10, wherein the plate-like body of the main elastic member and the sub-elastic member has a thickness of 1. .2 mm to 1.5 mm.

According to the hermetic / soundproof door according to the first aspect, the hermetic / soundproofing of the door is disposed between the door and the door frame that accommodates the door by being fitted into a fitting groove provided in the door frame. It is retained by the shape of the packing and its function.
For this purpose, the packing includes a base portion having a fitting portion to be fitted in the fitting groove portion on one side, and a base plane on the other side of the base portion, from a predetermined position of the base plane toward the side edge portion of the door. A first elastic member of a plate-like body extending with a first circumferential surface, and a predetermined distance from the first elastic member to the side end portion side of the door and from the base plane toward the side end portion of the door A plate-like second elastic member extending with a second circumferential surface, and a third circumference in which the first elastic member and the second elastic member are continuous with the first circumferential surface and the second circumferential surface. A third elastic member of a plate-like body connected by a surface; a main elastic member formed by a surface; and a fourth circumferential surface extending from a predetermined position of the first circumferential surface of the first elastic member toward the center of the door. A secondary elastic member of a plate-like body that extends, and when the door is closed to the door frame around the hinge member, the main elastic member comes into contact with the surface of the door The sub elastic member is formed so as to contact the surface of the door.

In the packing formed as described above, the main elastic member extended in the direction of the side edge of the door and the secondary elastic member extended in the direction of the center of the door are brought into contact with the surface of the door and bent. It is in close contact with the door.
Thereby, the connection part which expands and contracts from a packing and can be eliminated can be eliminated.
By eliminating the connection part that expands and contracts, the corner of the door pushes the packing to the side when the door is closed, eliminating the problem of sandwiching the packing between the door frame and the side of the door. Can do.

Further, the first elastic member does not extend from the base plane in the vertical direction as it is, but extends by having the first circumferential surface in the direction of the side edge of the door. (Including the third circumferential surface of the three elastic members) is a contact surface with the surface of the door, so that stable contact that always comes into contact with a predetermined position can be obtained.
Similarly, the secondary elastic member also extends from the predetermined position of the first circumferential surface of the first elastic member with the fourth circumferential surface in the direction of the center of the door, so that the fourth circumferential surface is the door. It is possible to obtain a stable contact that always comes into contact with a predetermined position when the door is closed.
And providing two contact surfaces, the contact surface by the 1st circumferential surface (including the 3rd circumferential surface of the 3rd elastic member) of the 1st elastic member, and the contact surface by the 4th circumferential surface of the subelastic member. Thus, when the door is closed, reliable contact and sealing between the door surface and the contact surface can be obtained.

Further, as described above, the packing is made by bending the main elastic member extending in the direction of the side edge of the door and the sub elastic member extending in the direction of the center of the door against the surface of the door when the door is closed. Not.
And the front-end | tip part of a main elastic member and a subelastic member is in a free state, abuts against members other than a door, and a main elastic member and a subelastic member itself are not compressed, and the surface of a door Since the leading end portions of the main elastic member and the sub elastic member are in a free state, the bending due to the abutment is also a bending that does not leave internal stress in the main elastic member and the sub elastic member.
As a result, the standard value can be satisfied with respect to the durability and weather resistance.

The first elastic member and the secondary elastic member are plate-like bodies, but are extended so as to form a first circumferential surface and a fourth circumferential surface.
The first circumferential surface and the fourth circumferential surface can prevent the first elastic member and the sub-elastic member from wavy.
Further, the circumferential surfaces of the first circumferential surface of the first elastic member, the second circumferential surface of the second elastic member, and the third circumferential surface of the third elastic member are connected by a continuous circumferential surface. Therefore, the second elastic member and the third elastic member can be prevented from wavy and the first elastic member can be further prevented from wavy.
The secondary elastic member extending from the first circumferential surface of the first elastic member functions as a rib with respect to the first circumferential surface of the first elastic member.
This can also prevent the first elastic member from wavy.
Thus, by making the shape that eliminates the undulation of the contact surface with the surface of the door of the packing, it is possible to improve the sealing and soundproofing when the door is closed.

Further, as described above, when the door is closed to the door frame with the hinge member as the center, the secondary elastic member is brought into contact with the surface of the door after the main elastic member is brought into contact with the surface of the door.
When the secondary elastic member is first brought into contact with the door when the door is closed, the corner of the door pushes the tip of the secondary elastic member toward the first elastic member, and the door pushes the secondary elastic member to the first. Although there is a possibility of folding to the elastic member side, this possibility can be solved if the main elastic member first comes into contact with the door and then the sub elastic member comes into contact with the door.
That is, by clarifying the contact order of the main elastic member and the sub-elastic member to the door, the door is prevented from folding the sub-elastic member toward the first elastic member, and the main elastic member and the sub-elastic member By the non-disturbing contact with the door by the two elastic members, it is possible to reliably improve the sealing and soundproofing when the door is closed.

  Next, according to the hermetic / soundproof door according to claim 2, the secondary elastic member extended from the first circumferential surface of the first elastic member, and the first elastic member extended from the extension point of the secondary elastic member The secondary elastic member is disposed and extended in the direction of the central portion of the door and the first elastic member is disposed and extended in the direction of the side end portion of the door with reference to a perpendicular from the base plane passing through the extension point. The distal end of the secondary elastic member and the distal end of the main elastic member are extended so as to be separated from each other.

This is because, for example, when the first elastic member is extended toward the center of the door, the front end of the main elastic member including the first elastic member faces the corner of the door when the door is closed. This is because the front end of the main elastic member including the first elastic member is pushed to the side, and there is a risk of lack of reliable contact and sealing between the door surface and the contact surface of the first elastic member.
Therefore, if the first elastic member is extended toward the side end portion side of the door, the first elastic member is formed in a shape that does not expand and contract when the door is closed. Since the top of the main elastic member including the first elastic member is easily climbed while being pushed up, the corner of the door pushes the front end of the main elastic member including the first elastic member to the side, and the surface of the door and the first elastic member The possibility of lack of reliable contact and sealing of the contact surface can be eliminated.

In addition, since the distal ends of the first elastic member and the secondary elastic member extend away from each other, it is possible to prevent the distal ends of the first elastic member and the secondary elastic member from overlapping each other when the door is closed.
Thus, when the door is closed, the two contact surfaces provided on the first circumferential surface of the first elastic member (including the third circumferential surface of the third elastic member) and the fourth circumferential surface of the auxiliary elastic member are the doors. The function of adhering to the surface of the door can be exhibited without any trouble such as overlapping each other, and reliable contact and sealing between the door surface and the contact surface can be obtained.

Next, according to the hermetic / soundproof door according to claim 3, the plate is disposed along the direction orthogonal to the cross section of the main elastic member on the outer side of the second elastic member and the inner side of the third elastic member forming the main elastic member. A thickness changing groove is formed.
Thereby, when the door is closed, the pressing force concentrated on the first circumferential surface (including the third circumferential surface of the third elastic member) of the first elastic member that comes into contact with the surface of the door can be dispersed. In the contact surface where the first circumferential surface of the first elastic member is in contact with the door, the contact surface can be prevented from being reversely warped.
That is, the first circumferential surface of the first elastic member (including the third circumferential surface of the third elastic member) can obtain reliable contact and sealing without reducing the contact surface with the door surface. it can.

Next, according to the hermetic / soundproof door according to claim 4, at least the first circumferential surface of the first elastic member, the third circumferential surface of the third elastic member, and the fourth circumferential surface of the auxiliary elastic member In addition, a friction reducing process for improving the slip of each circumferential surface is performed.
For example, the friction reducing process may be performed by applying molybdenum to at least the first circumferential surface of the first elastic member, the third circumferential surface of the third elastic member, and the fourth circumferential surface of the auxiliary elastic member, or by molybdenum electrodeposition. It is done by processing.
Accordingly, when the door is closed, the first circumferential surface of the first elastic member that slides in contact with the surface of the door, the third circumferential surface of the third elastic member, and the fourth circumferential surface of the auxiliary elastic member slide. Therefore, the corner of the door can easily get over while pushing the tip of the main elastic member smoothly.
After climbing over, the contact surface between the first circumferential surface of the first elastic member (including the third circumferential surface of the third elastic member) and the surface of the door of the fourth circumferential surface of the auxiliary elastic member is made into frictional resistance. You can increase without being disturbed.
That is, by increasing the contact surface between the first circumferential surface of the first elastic member (including the third circumferential surface of the third elastic member) and the door surface of the fourth circumferential surface of the auxiliary elastic member, Reliable contact and sealing can be obtained.
Further, by this friction reducing process, sliding between the first circumferential surface of the first elastic member (including the third circumferential surface of the third elastic member) and the door surface of the fourth circumferential surface of the auxiliary elastic member. The durability can be improved for the portion.

Next, according to the hermetic / soundproof door according to the fifth aspect, in the process in which the door is closed to the door frame with the hinge member as the center, the main elastic member comes into line contact with the surface of the door and then the door is moved toward the door center. In addition to increasing the amount of surface contact with the surface, the secondary elastic member increases the amount of surface contact with the door surface in the direction of the side edge of the door after making a line contact with the door surface.
Thereby, it is possible to prevent air from being caught in the contact surface that obstructs the contact of the main elastic member and the sub elastic member to the door, and the contact surface that contacts the surface of the door of the main elastic member and the sub elastic member is always It can be stabilized and brought into contact with the surface of the door.

Next, according to the hermetic / soundproof door according to claim 6, when the main elastic member is pressed by the door, the distal end portion of the secondary elastic member passes through the extension point of the secondary elastic member with respect to the base plane before pressing. To get closer to.
Thereby, it can be set as the drive source which presses a contact surface strongly against the surface of a door with respect to the contact surface contact | abutted to the surface of the door of a subelastic member.
That is, by firmly pressing the contact surface of the fourth circumferential surface of the secondary elastic member with the door surface, reliable contact and sealing can be obtained even in the secondary elastic member.

Next, according to the hermetic / soundproof door of claim 7, the packing is formed of EPDM (ethylene propylene rubber).
This EPDM is a terpolymer that is classified as an olefin rubber and uses ethylene, propylene, and a diene monomer for crosslinking.
Copolymerization with a third component, a non-conjugated diene monomer, enables sulfur cross-linking (vulcanization), ozone resistance, heat deterioration resistance, weather resistance, cold resistance, polar resistance, inorganic resistance than IIR (butyl rubber) It is excellent in chemical properties and has particularly excellent properties with respect to impact resilience, so it has high durability against repeated pressing.
Therefore, by combining the shape of the main elastic member and sub-elastic member constituting the packing with the properties of EPDM, the ozone resistance, heat deterioration resistance, weather resistance, cold resistance and higher durability required for sealed and soundproof doors are required. Can be provided.

Next, according to the hermetic / soundproof door according to the eighth aspect, the hardness of the EPDM is from 65 degrees to 75 degrees (Hs).
By adjusting the hardness of the EPDM between 65 degrees and 75 degrees (Hs) and the shapes of the main elastic member and the sub elastic member, the pressing force of the contact surface of the main elastic member and the sub elastic member on the surface of the door is made appropriate. While ensuring a reliable contact and airtightness, the durability can be further improved.

Next, according to the hermetic / soundproof door according to the ninth aspect, the packing is formed of SR (silicone rubber).
This SR may be liquid, grease-like, rubber-like, or resin-like depending on the degree of polymerization, the type of side groups, the degree of crosslinking, etc., and a highly polymerized linear polydimethylsiloxane or a copolymer thereof. Is moderately crosslinked to exhibit rubbery elasticity.
Silicone is a generic term for polysiloxane, a polymer composed of a repeating structure of siloxane bonds (-Si-O) n in which silicon atoms and oxygen atoms are bonded. Of these, organic groups such as alkyl groups and aryl groups are used. Say what you have.
The physical properties of SR are attributed to this molecular structure. Due to its high binding energy, low intermolecular force and high coil-forming ability, heat resistance, cold resistance, ozone resistance, weather resistance, water repellency, electrical insulation, chemical resistance Excellent in properties, compression set, and aging resistance.
In addition, high durability is provided by improved SR in bending fatigue resistance.
Therefore, by combining the shape of the main elastic member and the sub elastic member constituting the packing and the nature of the SR, the ozone resistance, heat resistance, cold resistance, weather resistance and higher durability required for the sealed / soundproof door are increased. Can be provided.

Next, according to the sealed / soundproof door of claim 10, the hardness of SR is 20 degrees to 40 degrees (Hs).
By combining the SR hardness of 20 degrees to 40 degrees (Hs) with the shapes of the main elastic member and the sub elastic member, the pressing force of the contact surface of the main elastic member and the sub elastic member to the door surface is made appropriate. While ensuring a reliable contact and airtightness, the durability can be further improved.

According to the hermetic / soundproof door of the eleventh aspect, the plate-like bodies of the main elastic member and the sub-elastic member have a thickness of 1.2 mm to 1.5 mm.
As a result, the pressing force of the contact surface of the main elastic member and the sub elastic member to the door surface is made appropriate to obtain reliable contact and sealing, and the shape of the main elastic member and the sub elastic member is minimized. It is possible to eliminate or make it inconspicuous.

Hereinafter, an embodiment in which the present invention is applied to a hermetic / soundproof door will be described in detail with reference to the drawings.
First, based on FIG. 1, the structure of the airtight and soundproof door 1 which concerns on this embodiment is demonstrated.
Here, FIG. 1 is a perspective view illustrating the configuration of the hermetic / soundproof door according to the present embodiment.
As shown in FIG. 1, the hermetic / soundproof door 1 includes a door 2, a door frame 3 that houses the door 2, a hinge member 4 that connects the door 2 and the door frame 3 so as to be openable and closable, and the door 2. 3 is provided with a fitting groove 5 (see FIG. 3) provided at a position facing the hinge-side end B of the door 2 of the door frame 3 when the door 3 is rotated and stored in the direction of arrow A via the hinge member 4. And a packing 6 (see FIG. 2) that is attached to the fitting groove 5 and abuts against the hinge-side end B of the door 2.
The door 2 is a steel soundproof door that houses a soundproof material (not shown) inside.
Furthermore, a knob (not shown) is attached to the door 2, and the door 2 is opened and closed in the direction of arrow A or opposite arrow A by the knob with the hinge member 4 connecting the door 2 and the door frame 3 as a rotation center. Can do.
The door frame 3 is a rectangular frame, and the door frame 3 is also a soundproof door frame.

Next, the shape of the packing 6 will be described with reference to FIG.
Here, FIG. 2 is a cross-sectional view of the packing for explaining the shape of the packing.
As shown in FIG. 2, the packing 6 includes a base portion 8 having a fitting portion 7 fitted on the fitting groove portion 5 of the door frame 3 on one surface.
The fitting portion 7 includes a substantially rectangular tubular fitting main body portion 9 including a base portion 8, and two pairs of plate shapes extending outward from both side surfaces of the fitting main body portion 9 toward the base portion 8. And body protrusions 10 and 10.
In the fitting portion 7 of the packing 6, the lengths of the tip ends of the pair of protrusions 10 and 10 are set to be larger than the width of the fitting groove portion 5 serving as the attachment portion of the fitting portion 7. .
Therefore, when the fitting portion 7 is fitted into the fitting groove portion 5, the protruding portions 10 and 10 are forcedly bent toward the base 8 side, and the protruding portions 10 and 10 are in the state of FIG. The fitting portion 7 is held inside the fitting groove portion 5 by the restoring force to be restored.
Thereby, the sealing property and soundproofing property in this part are ensured.

Further, as shown in FIG. 2, the packing 6 includes a base plane 11 on the other surface of the base 8 (the surface opposite to the surface including the fitting portion 7). A plate-like first elastic member 13 extending from the position (FIG. 2, the left end of the base 8) in the direction of the side end of the door 2 (the right side in FIG. 2) having the first circumferential surface 12 is provided. I have.
By providing the first circumferential surface 12 that is a contact surface with the surface of the door 2, it is possible to prevent the first elastic member 13 from wavy.
Further, since the first elastic member 13 is extended in the direction of the side end portion of the door 2 by the first circumferential surface 12, when the first elastic member 13 and the hinge side end portion B of the surface of the door 2 contact each other. The first elastic member 13 can be reliably bent in the direction of the base 8 and the contact area with the surface of the door 2 is increased by a restoring force for restoring the original shape of the first circumferential surface 12. do.

Similarly, the packing 6 has a second circumferential surface 14 in the direction from the base plane 11 of the base 8 toward the side end of the door 2 at a predetermined distance from the first elastic member 13 to the side end of the door 2. Thus, a second elastic member 15 having a plate-like body is provided.
By providing the second circumferential surface 14, it is possible to prevent the second elastic member 15 from wavy.
Further, since the second elastic member 15 extends toward the side end portion of the door 2 by the second circumferential surface 14, the second elastic member 15 can be reliably bent in the direction of the base 8, and the second circle A restoring force for restoring the original shape of the peripheral surface 14 is incorporated.
The packing 6 is a third elastic member of a plate-like body that connects the first elastic member 13 and the second elastic member 15 with a third circumferential surface 16 that is continuous with the first circumferential surface 12 and the second circumferential surface 14. A member 17 is provided.
By providing the third circumferential surface 16, it is possible to prevent the third elastic member 17 from wavy.
Furthermore, when the first elastic member 13 and the hinge side end B of the surface of the door 2 come into contact with each other, there is a restoring force for restoring the original shape of the second circumferential surface 14 and the third circumferential surface 16. In cooperation, the front end of the first elastic member 13 is prevented from floating from the surface of the door 2, and the contact area between the first circumferential surface 12 and the surface of the door 2 is increased.

  The first elastic member 13 and the second elastic member 15 which are plate-like members extending in the direction of the side end of the door 2 (the right side in FIG. 2), and the first elastic member 13 and the second elastic member 15 are connected. The plate-like third elastic member 17 has a cylindrical shape including the base portion 8 and extends in the direction of the side end portion of the door 2, and contacts the hinge side end portion B on the surface of the door 2 when the door 2 is closed. The main elastic member 18 of the packing 6 that is in contact with the base 6 and is always bent in the direction of the base 8 is formed.

Further, as shown in FIG. 2, the packing 6 includes a fourth circumferential surface extending from the extending point C (lower left side in FIG. 2) of the first circumferential surface 12 of the first elastic member 13 toward the center portion of the door 2. And a sub-elastic member 20 that is a plate-like body that extends while being bent and abuts against the surface of the door 2 when the door 2 is closed.
By providing the fourth circumferential surface 19 that is a contact surface with the surface of the door 2, it is possible to prevent the auxiliary elastic member 20 from wavy.
Furthermore, since the secondary elastic member 20 is extended by the 4th circumferential surface 19 toward the center part of the door 2, when the secondary elastic member 20 and the hinge side edge part B of the surface of the door 2 contact | abut, it is secondary elasticity. The member 20 can be reliably bent in the direction of the base 8.
Furthermore, it works to increase the contact area with the surface of the door 2 by the restoring force to restore the original shape of the fourth circumferential surface 19.
The secondary elastic member 20 functions as a rib with respect to the first elastic member 13, thereby preventing the first elastic member 13 from wavy.

As described above, the packing 6 includes two elastic members, the main elastic member 18 and the sub elastic member 20, which are in contact with the surface of the door 2 while being bent, when the door 2 is closed. The distal end portion D and the secondary elastic member distal end portion E are arranged such that the primary elastic member distal end portion D extends toward the side end portion of the door 2 with reference to a perpendicular to the base plane 11 of the base portion 8 passing through the extension point C. The distal end portions E extend toward the center portion of the door 2 so as to be separated from each other.
This is because the packing 6 is reliably bent in a predetermined direction, the contact location and the contact area when the packing 6 contacts the surface of the door 2 are increased according to the closed state of the door 2, and the front end of the main elastic member This is to prevent performance degradation of the hermetic / soundproof door 1 that occurs when the tips of the part D and the tip of the auxiliary elastic member E overlap.

Further, as shown in FIG. 2, a first plate thickness changing groove portion 21 is formed outside the second elastic member 15 forming the cylindrical main elastic member 18 along a direction orthogonal to the cross section of the main elastic member 18. Is formed.
Further, a second plate thickness changing groove 22 is formed inside the third elastic member 17 forming the cylindrical main elastic member 18 along a direction orthogonal to the cross section of the main elastic member 18.
This is to make the second elastic member 15 easy to bend and to make contact of the contact surface uniform when the first circumferential surface 12 of the main elastic member 18 contacts the surface of the door 2.

Further, the first circumferential surface 12 of the first elastic member 13 forming the main elastic member 18, the third circumferential surface 16 of the third elastic member 17, and the fourth circumferential surface 18 of the sub-elastic member 20 are subjected to friction. As the reduction process, molybdenum coating or molybdenum electrodeposition is performed.
This friction reduction process is performed by the first circumferential surface 12 of the first elastic member 13 that forms the main elastic member 18, the third circumferential surface 16 of the third elastic member 17, and the fourth circumferential surface of the auxiliary elastic member 20. When the door 2 is opened and closed, the main elastic member 18 and the sub elastic member 20 of the packing 6 are applied to quickly respond to the opening and closing operation of the door 2.
Further, by improving the sliding, the friction is caused by the friction of the first circumferential surface 12 of the first elastic member 13, the third circumferential surface 16 of the third elastic member 17, and the fourth circumferential surface 18 of the auxiliary elastic member 20. Prevent wear and improve durability.
The friction reducing process may not be molybdenum as long as the same function as molybdenum can be obtained.

Further, as shown in FIG. 2, the secondary elastic member 20 extends the first circumferential surface 12 of the first elastic member 13 so as to be lower than the main elastic member 18 with respect to the base plane 11 of the base 8. A fourth circumferential surface 19 is extended from the starting point C (lower left side in FIG. 2) toward the center of the door 2.
This is because when the door 2 is closed to the door frame 3 around the hinge member 4, the main elastic member 18 first comes into contact with the surface of the door 2, and then the secondary elastic member 20 comes into contact with the surface of the door 2. It is for doing so.
Thereby, the contact order of the main elastic member 18 and the sub elastic member 20 with respect to the surface of the door 2 can be clarified, and the door 2 is prevented from folding the sub elastic member 20 to the first elastic member 13 side. To do.

Further, since the members constituting the packing 6 are required to have durability and weather resistance, they are molded from EPDM (ethylene propylene rubber) having good durability and weather resistance.
Further, SR (silicone rubber) having the same function may be used as a member constituting the packing 6.
The members constituting the packing 6 may be other synthetic rubbers or thermoplastic elastomers when properties such as durability and weather resistance meet the required specifications.

Further, since the packing 6 is a protruding member, it is desirable to reduce the size and prevent the person from being caught by an object by mistake.
Therefore, the hardness of EPDM used for the packing 6 is changed from 65 degrees to 75 degrees (Hs), and the plate thickness of the main elastic member 18 and the sub elastic member 20 of the packing 6 is changed from 1.2 mm to 1.5 mm. The standard required for the hermetic / soundproof door 1 and the downsizing of the packing 6 are realized.
In addition, when using SR for the packing 6, it is desirable that the hardness of SR used is 20 degrees to 40 degrees (Hs).

Next, the relationship among the door 2, the door frame 3, and the packing 6 in the process of closing the door 2 will be described based on FIGS. 3 to 6 as viewed from the II cross section of FIG. 1.
Here, FIG. 3 is an II partial cross-sectional view illustrating a state before the door abuts against the packing, and FIG. 4 illustrates a state where the hinge side corner of the door is in contact with the main elastic member of the packing. FIG. 5 is a partial cross-sectional view taken along the line I-I for explaining a state in which the main elastic member of the packing is already in contact with the surface of the door and the auxiliary elastic member is in contact with the surface of the door. 6 is a partial cross-sectional view taken along the line II, illustrating a state of the door and packing when the door is completely closed to the door frame.

As shown in FIG. 3, the hinge member 4 has the door frame side blades 23 constituting the hinge member 4 attached to the door frame 3 by members (not shown) (not shown).
The door 2 is attached to the door-side blades 24 constituting the hinge member 4 by members (not shown) (not shown).
Accordingly, the door 2 can be opened and closed by rotating the door frame 3 that houses the door 2 around the rotation shaft 25 of the hinge member 4.

Further, as shown in FIG. 3, when the door 2 is rotated around the rotation shaft 25 of the hinge member 4 and stored in the door frame 3, the door facing the hinge side end B on the surface of the door 2. A door facing surface 26 is provided at the position of the frame 3.
A fitting groove 5 is provided over the entire periphery of the door frame 3 at the end of the door facing surface 26 (center side of the door 2) (see FIGS. 1 and 6).

As shown in FIG. 3, the fitting portion 7 of the packing 6 is inserted into the fitting groove portion 5 up to the base portion 8, and the fitting main body portion 9 is in contact with the bottom surface of the fitting groove portion 5.
Then, the main elastic member tip D of the main elastic member 18 extending from the base portion 8 extends in the direction of the side end of the door 2 and the sub-elasticity of the sub-elastic member 20 extended from the first elastic member 13 of the main elastic member 18. The member tip E protrudes from the entrance of the fitting groove 5 in a state where the member tip E extends toward the center of the door 2 so as to be separated from each other.

In attaching the packings 6, the four packings 6 cut in accordance with the dimensions of each side of the fitting groove 5 may be fitted into the fitting grooves 5, or the four packings 6 may be cut. Both ends may be cut at 45 degrees, and the cut surface may be welded or bonded to form a quadrangular frame-shaped packing 6, which may be fitted into the fitting groove 5.
In the figure in which the fitting portion 7 is inserted into the fitting groove portion 5, the two pairs of protrusions 10 and 10 provided on the fitting main body portion 9 are drawn to overlap the wall of the fitting groove portion 5. ing.
This indicates that the fitting portion 7 of the packing 6 is actually fitted into the fitting groove portion 5 by an interference fit due to the overlap.

  The state shown in FIG. 3 is the hinge of the door 2 in the process of closing the door 2 in which the door 2 is rotated in the direction of arrow A around the rotation shaft 25 of the hinge member 4 and stored in the door frame 3. The state in which the side corner | angular part 27 is contact | abutting to the 1st circumferential surface 12 of the 1st elastic member 13 which forms the main elastic member 18 of the packing 6 soon is shown.

Next, in the state shown in FIG. 4, when the door 2 is further rotated around the rotation shaft 25 in the direction of arrow A, the hinge-side corner portion 27 of the door 2 is more than the secondary elastic member 20 of the packing 6. The state which contact | abutted the 1st circumferential surface 12 of the 1st elastic member 13 which forms the main elastic member 18 previously is shown.
This is because when the height of the main elastic member 18 from the base plane 11 of the base portion 8 is made higher than that of the sub elastic member 20, the door 2 is closed to the door frame 3 around the hinge member 4 at the beginning. This is because the main elastic member 18 always comes into contact with the hinge-side corner portion 27 of the door 2 and the secondary elastic member 20 comes into contact with the surface of the door 2 next.
Thereby, for example, when the secondary elastic member 20 that is first extended toward the center portion of the door 2 is brought into contact with the surface of the door 2 when the door is closed, the hinge-side corner portion 27 of the door 2 becomes secondary elastic. Although the end E of the sub-elastic member 20 of the member 20 is pushed toward the first elastic member 13, the door 2 may fold the sub-elastic member 20 toward the first elastic member 13. If the main elastic member 18 extending in the partial direction is brought into contact with the door 2 and then the secondary elastic member 20 is brought into contact with the surface of the door 2, this possibility can be eliminated.
Furthermore, since the shape of the main elastic member 18 of the packing 6 is a simple shape that is bent but does not have a portion to expand and contract, it is not sandwiched between the side surfaces of the door 2 to impair the sealing and soundproofing.

When the door 2 is further rotated around the rotation shaft 25 in the direction of arrow A from the state shown in FIG. 4, the main elastic member 18 extending in the direction of the side end of the door 2 of the packing 6 is By bending as determined on the base 8 side, the hinge side corner 27 of the door 2 is easily overcome.
Further, this overcoming is quickly performed by a friction reducing process for improving the slip applied to the main elastic member 18 of the packing 6.
In addition, this friction reduction process prevents durability caused by friction generated when the main elastic member 18 of the packing 6 gets over the hinge side corner 27 of the door 2 against repeated opening and closing of the door 2. It is improving.

  Next, in the state shown in FIG. 5, after the main elastic member 18 of the packing 6 gets over the hinge-side corner portion 27 of the door 2, the door 2 is further rotated around the rotation shaft 25 in the direction of arrow A. Then, when the main elastic member 18 first makes a line contact with the hinge side end B on the surface of the door 2, the second circumferential surface 14 and the third circumferential surface 16 act to move the door toward the door center. The amount of surface contact with the surface of 2 is increased. If the door 2 is further rotated about the rotation shaft 25 in the direction of arrow A, then the secondary elastic member constituting the packing 6 is obtained. 20 shows a state in which the tip end portion E of the 20 sub-elastic members is in line contact with the hinge-side end portion B on the surface of the door 2.

At this time, as described above, the first circumferential surface 12 of the first elastic member 13 (including the third circumferential surface 16 of the third elastic member 17) is first the hinge-side end portion of the surface of the door 2. From the time of line contact with B, due to the restoring force of itself and the restoring force of the second circumferential surface 14 and the third circumferential surface 16, it comes into surface contact with the hinge side end B of the surface of the door 2 in the door center direction. The amount to be increased is gradually increased.
For this reason, the contact surface of the first circumferential surface 12 does not entrain air, so the contact surface of the first circumferential surface 12 is a stable contact surface for maintaining sealing and soundproofing.
The main elastic member 18 and the secondary elastic member 20 are brought into contact with the hinge side end B of the surface of the door 2 in time series to eliminate interference between the main elastic member 18 and the secondary elastic member 20. The height of the main elastic member 18 from the base plane 11 of 8 is made higher than that of the sub-elastic member 20, and the tip of each elastic member, the main elastic member tip D and the sub-elastic member tip E are The main elastic member front end D is directed toward the side end of the door 2 and the sub elastic member front end E is directed toward the center of the door 2 with reference to the perpendicular to the base plane 11 of the base 8 passing through the extension point C. And by being extended away from each other.

The state shown in FIG. 6 shows the state of the packing 6 with respect to the door 2 when the door 2 is completely closed by the door frame 3.
Compared with FIG. 5, the first circumferential surface 12 of the first elastic member 13 (including the third circumferential surface 16 of the third elastic member 17) is first lined with the hinge-side end B on the surface of the door 2. The amount of surface contact with the hinge-side end B of the surface of the door 2 in the center direction of the door by the action of its own restoring force and the restoring force of the second circumferential surface 14 and the third circumferential surface 16 from the time of contact. Further increase.
At this time, the first plate thickness changing groove portion 21 provided outside the second elastic member 15 and the second plate thickness changing groove portion 22 provided inside the third elastic member 17 are in contact with the surface of the door 2. The pressing force concentrated on the first circumferential surface 12 of the first elastic member 13 (including the third circumferential surface 16 of the third elastic member 17) is dispersed so that the first circumferential surface 12 of the first elastic member 13 is the door. In the contact surface in contact with the surface of 2, the contact surface is prevented from being reversely warped.
As a result, the first circumferential surface 12 of the first elastic member 13 (including the third circumferential surface 16 of the third elastic member 17) does not decrease the contact surface with the surface of the door 2, and reliable contact is achieved. The seal is obtained.

Further, the fourth circumferential surface 19 of the secondary elastic member 20 also faces in the direction toward the side edge of the door 2 from when the secondary elastic member tip E in FIG. 5 makes line contact with the hinge side end B of the surface of the door 2. The amount of contact is gradually increased.
Thereby, since the contact surface of the 4th circumferential surface 19 does not entrap air also in the subelastic member 20, the contact surface of the 4th circumferential surface 19 becomes a stable contact surface for maintaining sealing and soundproofing. It has become.
Further, when the main elastic member 18 is pressed by the door 2, the sub elastic member tip E of the sub elastic member 20 is perpendicular to the extension point C of the sub elastic member 20 with respect to the base plane 11 of the base 8 before pressing. Thus, the contact surface is a driving source that strongly presses the door 2 against the contact surface that contacts the surface of the door 2 of the auxiliary elastic member 20.

Next, the above state will be described with reference to FIG.
Here, FIG. 7 is a partial cross-sectional view taken along the line II, illustrating a state in which the first circumferential surface of the main elastic member can strongly press the fourth circumferential surface of the sub-elastic member against the end portion of the door surface. It is.
The solid line of the main elastic member 18 and the subelastic member 20 shown in FIG. 7 shows the state in which the main elastic member 18 and the subelastic member 20 are pressed by the surface of the door 2, and a dotted line shows the state which is not pressed. . Furthermore, the alternate long and short dash line indicates the position of the sub-elastic member tip E when it is assumed that the main elastic member 18 is pressed by the surface of the door 2 but the sub-elastic member 20 is free.
As shown in FIG. 7, the secondary elastic member tip E overlaps with the door 2 even in the state of the dotted line that is not pressed, and this is the surface of the door 2 on the fourth circumferential surface 19 of the secondary elastic member 20. This is the initial driving force to be pressed.

As shown in FIG. 7, when the secondary elastic member 20 is provided near the middle of the first elastic member 13, when the first elastic member 13 is bent toward the base 8 side by the pressing of the door 2, the secondary elastic member. The base portion 8 is such that the distal end portion E of the secondary elastic member 20 approaches the vertical line by a distance G with respect to the distance F from the vertical line passing through the extension point C of the secondary elastic member 20 with respect to the base plane 11 of the base portion 8 before pressing. It stands up with respect to the base plane 11 as shown by a one-dot chain line.
Therefore, the overlap of the secondary elastic member tip E with respect to the door 2 is deepened, and the surface of the door 2 on the fourth circumferential surface 19 of the secondary elastic member 20 is pressed against the initial driving force by the deepened amount. Driving force increases.
Thereby, the contact surface with respect to the surface of the door 2 of the 4th circumferential surface 19 in the subelastic member 20 is a stable contact surface.
As described above, two stable contact surfaces that come into contact with the hinge-side end B of the surface of the door 2 by the first circumferential surface 12 of the main elastic member 18 and the fourth circumferential surface 19 of the auxiliary elastic member 20 are provided. Therefore, the hermetic / soundproof door 1 can obtain high hermeticity and soundproofing.

Next, the free end side end H (the free end of the door 2) opposite to the hinge side end B of the door 2 to which the hinge member 4 is attached, and the upper end J and the lower end K of the door 2 are The state when contacting the packing 6 when the door 2 is closed will be described with reference to FIGS.
Here, FIG. 8 is a II-II partial sectional view illustrating a state in which the free end of the door is in contact with the main elastic member of the packing, and FIG. 9 is an upper end of the door in contact with the main elastic member of the packing. FIG. 10 is a partial cross-sectional view illustrating the state where the lower end of the door is in contact with the main elastic member of the packing.

First, the relationship between the free end end H of the door 2 and the packing 6 will be described.
As shown in FIG. 8, when the main elastic member 18 (first circumferential surface 12) of the packing 6 contacts the free end side end H of the surface of the door 2, the width of the door 2 is about 1 m. The door facing surface 26 of the door frame 3 and the free end side end H of the surface of the door 2 are substantially parallel.
Therefore, when the door 2 is closed, the main elastic member 18 of the packing 6 does not move over the free end side corner portion 28 of the door 2, and the main elastic member 18 (the first circumferential surface 12) of the packing 6 and the door The abutment of the free end side end H of the surface 2 is a stable simple abutment in which the main elastic member 18 bends in a predetermined direction (the base 8 side in the side end direction of the door 2).
The subsequent contact between the secondary elastic member 20 (fourth circumferential surface 19) of the packing 6 and the free end H of the surface of the door 2 is caused by the direction in which the secondary elastic member 20 is determined (the center of the door 2). It becomes a stable simple contact that bends toward the base 8 side in the direction of the part.
Thus, the two stable contact surfaces which contact the free end side edge part H of the surface of the door 2 by the 1st circumferential surface 12 of the main elastic member 18 and the 4th circumferential surface 19 of the subelastic member 20 are provided. Thus, the airtight / soundproof door 1 can obtain high airtightness and soundproofing.

Next, the relationship between the upper end J of the door 2 and the packing 6 will be described.
As shown in FIG. 9, the upper end J of the door 2 and the door facing surface 26 of the door frame 3 are opened and closed so as to be always parallel.
Therefore, when the door 2 is closed, there is no movement of the main elastic member 18 of the packing 6 over the corner 29 on the upper end side of the door 2, and the main elastic member 18 (first circumferential surface 12) of the packing 6 and the door. The contact of the upper end J of the surface 2 is a simple and stable contact in which the main elastic member 18 bends in a predetermined direction (the base 8 side in the side end direction of the door 2).
The subsequent contact between the secondary elastic member 20 (fourth circumferential surface 19) of the packing 6 and the upper end J of the surface of the door 2 is the direction in which the secondary elastic member 20 is determined (the direction of the center of the door 2). The base 8 side) is stable and simple contact.
In this way, by providing two stable contact surfaces that contact the upper end J of the surface of the door 2 by the first circumferential surface 12 of the main elastic member 18 and the fourth circumferential surface 19 of the secondary elastic member 20. The airtight / soundproof door 1 can obtain high airtightness and soundproofing.

Next, the relationship between the lower end K of the door 2 and the packing 6 will be described.
As shown in FIG. 10, the lower end K of the door 2 and the door facing surface 26 of the door frame 3 are opened and closed so as to be always parallel.
Therefore, when the door 2 is closed, there is no movement of the main elastic member 18 of the packing 6 over the lower end side corner portion 30 of the door 2, and the main elastic member 18 (the first circumferential surface 12) of the packing 6 and the door. The abutment of the lower end K of the surface 2 is a stable simple abutment in which the main elastic member 18 is bent in the determined direction (the base 8 side in the side end direction of the door 2).
The subsequent contact between the secondary elastic member 20 (fourth circumferential surface 19) of the packing 6 and the lower end K of the surface of the door 2 is caused by the direction in which the secondary elastic member 20 is determined (the center of the door 2). A stable simple contact that bends in the direction base 8 side).
As described above, two stable contact surfaces that come into contact with the lower end portion K of the surface of the door 2 by the first circumferential surface 12 of the main elastic member 18 and the fourth circumferential surface 19 of the auxiliary elastic member 20 are provided. Therefore, the hermetic / soundproof door 1 can obtain high hermeticity and soundproofing.
In this way, by the cooperation of the respective members at the respective locations, the hermetic / soundproof door 1 can obtain high hermeticity and soundproofing.

As described above, according to the sealing / soundproof door 1 according to the present embodiment, the sealing / soundproofing of the door 2 is provided in the door frame 3 between the door 2 and the door frame 3 that houses the door 2. It is held by the shape and function of the packing 6 that is fitted and disposed in the fitting groove 5.
For this purpose, the packing 6 includes a base portion 8 having a fitting portion 7 fitted to the fitting groove portion 5 of the door frame 3 on one side, and a base plane 11 on the other side of the base portion 8. A first elastic member 13 of a plate-like body extending from the predetermined position toward the side end portion of the door 2 with the first circumferential surface 12, and from the first elastic member 13 to the side end portion side of the door 2. A plate-like second elastic member 15 extending from the base plane 11 toward the side end portion of the door 2 at a predetermined distance and having a second circumferential surface 14, a first elastic member 13, and a second elastic member 13. A main elastic member 18 formed of a plate-like third elastic member 17 that connects the elastic member 15 with a third circumferential surface 16 that is continuous with the first circumferential surface 12 and the second circumferential surface 14; A secondary elastic portion of a plate-like body extending from a predetermined position of the first circumferential surface 12 of the first elastic member 13 with a fourth circumferential surface 19 in the direction of the center portion of the door 2. 20, and when the door 2 is closed to the door frame 3 around the hinge member 4, the secondary elastic member 20 contacts the surface of the door 2 after the main elastic member 18 contacts the surface of the door 2. It is formed as follows.

The packing 6 formed as described above applies the main elastic member 18 extending in the direction of the side edge of the door 2 and the sub elastic member 20 extending in the direction of the center of the door 2 to the surface of the door 2. It is brought into close contact with the door 2 by bending in contact.
Thereby, the connection part which expands and contracts from the packing 6 can be eliminated.
Due to the shape in which the connecting portion that is expanded and contracted is eliminated, when the door is closed, the hinge side corner portion 27 of the door 2 pushes the packing 6 to the side, and the packing 6 is interposed between the door frame 3 and the side of the door 2. The problem of pinching can be eliminated.

Furthermore, instead of extending the first elastic member 13 from the base plane 11 in the vertical direction as it is, the first elastic member 13 extends by having the first circumferential surface 12 in the side end portion direction of the door 2, thereby Since the circumferential surface 12 (including the third circumferential surface 16 of the third elastic member 17) is a contact surface with the surface of the door 2, a stable contact that always comes into contact with a predetermined position can be obtained.
Similarly, the secondary elastic member 20 is also extended from the predetermined position of the first circumferential surface 12 of the first elastic member 13 with the fourth circumferential surface 19 in the direction toward the center of the door 2. The circumferential surface 19 becomes a contact surface with the surface of the door 2, and a stable contact that always comes in contact with a predetermined position when the door is closed can be obtained.
The contact surface formed by the first circumferential surface 12 of the first elastic member 13 (including the third circumferential surface 16 of the third elastic member 17) and the contact surface formed by the fourth circumferential surface 19 of the secondary elastic member 20 are two. By providing two contact surfaces, when the door is closed, reliable contact and sealing between the surface of the door 2 and the contact surface can be obtained.

Further, as described above, the packing 6 includes the main elastic member 18 extending toward the side end portion of the door 2 and the sub elastic member 20 extending toward the center portion of the door 2 when the door 2 is closed. It is bent in contact with the surface.
The main elastic member tip portion D of the main elastic member 18 and the sub elastic member tip portion E of the sub elastic member 20 are in a free state and come into contact with members other than the door 2 so as to contact the main elastic member 18 and the sub elastic member. The member 20 itself is not compressed, and the bending due to contact with the surface of the door 2 is also free when the main elastic member tip D of the main elastic member 18 and the sub elastic member tip E of the sub elastic member 20 are free. Therefore, the main elastic member 18 and the sub elastic member 20 are bent without leaving any internal stress.
As a result, the packing 6 can satisfy the standard values for the durability characteristics and the weather resistance characteristics.

The first elastic member 13 and the secondary elastic member 20 are plate-like bodies, but are extended so as to form the first circumferential surface 12 and the fourth circumferential surface 19.
The first circumferential surface 12 and the fourth circumferential surface 19 can prevent the first elastic member 13 and the sub-elastic member 20 from wavy.
Further, the first circumferential surface 12 of the first elastic member 13, the second circumferential surface 14 of the second elastic member 15, and the third circumferential surface 16 of the third elastic member 17 are continuous circles. Since it becomes cylindrical shape including the base 8 by connecting with a peripheral surface, while preventing the wavy of the 2nd elastic member 15 and the 3rd elastic member 17, it can further reinforce the wavy prevention of the 1st elastic member 13. .
The secondary elastic member 20 that extends from the first circumferential surface 12 of the first elastic member 13 functions as a rib with respect to the first circumferential surface 12 of the first elastic member 13.
This can also prevent the first elastic member 13 from wavy.
Thus, by making the shape which eliminates the waviness of the contact surface with respect to the surface of the door 2 of the packing 6, the sealing and soundproofing can be enhanced when the door is closed.

Further, as described above, when the door 2 is closed to the door frame 3 around the hinge member 4, the secondary elastic member 20 is brought into contact with the surface of the door 2 after the main elastic member 18 contacts the surface of the door 2. I try to touch.
When the secondary elastic member 20 is first brought into contact with the door 2 when the door is closed, the hinge side corner portion 27 of the door 2 causes the secondary elastic member tip E of the secondary elastic member 20 to be on the first elastic member 13 side. The door 2 may fold the secondary elastic member 20 toward the first elastic member 13, but the main elastic member 18 first contacts the door 2, and then the secondary elastic member 20 contacts the door 2. If the contact is made, this possibility can be solved.
That is, by clarifying the contact order of the main elastic member 18 and the sub elastic member 20 with respect to the door 2, the door 2 is prevented from folding the sub elastic member 20 to the first elastic member 13 side. By the non-disturbing contact with the door 2 by the two elastic members of the member 18 and the secondary elastic member 20, the sealing and soundproofing when the door is closed can be reliably improved.

  Next, the hermetic / soundproof door 1 includes a secondary elastic member 20 extending from the first circumferential surface 12 of the first elastic member 13 and a first elastic member 13 extending from the extension point C of the secondary elastic member 20. However, on the basis of the perpendicular from the base plane 11 passing through the extension point C, the secondary elastic member 20 is disposed and extended toward the central portion direction side of the door 2 and the first elastic member 13 is extended toward the side end portion of the door 2. The auxiliary elastic member tip E of the auxiliary elastic member 20 and the main elastic member tip D of the main elastic member 18 extend away from each other.

This is because, for example, when the first elastic member 13 is extended toward the center portion of the door 2, the main elastic member tip D of the main elastic member 18 including the first elastic member 13 is located at the door 2 when the door is closed. The hinge-side corner 27 of the door 2 faces the hinge-side corner 27 and pushes the main elastic member tip D of the main elastic member 18 including the first elastic member 13 to the side. This is because there is a risk of lack of reliable contact and sealing of the contact surface of the elastic member 13.
Therefore, if the 1st elastic member 13 is extended to the side edge part direction side of the door 2, since the 1st elastic member 13 is formed in the shape which does not expand-contract at the time of door closing, Since the hinge side corner 27 easily climbs over the main elastic member tip D of the main elastic member 18 including the first elastic member 13, the hinge side corner 27 of the door 2 includes the main elastic including the first elastic member 13. The main elastic member front end D of the member 18 is pushed to the side, and there is no possibility of lack of reliable contact and sealing between the surface of the door 2 and the contact surface of the first elastic member 13.

Further, the main elastic member tip D of the main elastic member 18 including the first elastic member 13 and the sub elastic member tip E of the sub elastic member 20 are extended away from each other. It is possible to prevent the main elastic member front end portion D of the main elastic member 18 including the first elastic member 13 and the sub elastic member front end portion E of the sub elastic member 20 from overlapping each other.
Accordingly, when the door is closed, the first circumferential surface 12 of the first elastic member 13 (including the third circumferential surface 16 of the third elastic member 17) and the fourth circumferential surface 19 of the auxiliary elastic member 20 are provided. The function in which the two contact surfaces are in close contact with the surface of the door 2 can be exhibited without any trouble such as overlapping each other, and reliable contact and sealing between the surface of the door 2 and the contact surface can be obtained. .

Next, the hermetic / soundproof door 1 has a first plate along the direction orthogonal to the cross section of the main elastic member 18 on the outer side of the second elastic member 15 and the inner side of the third elastic member 17 forming the main elastic member 18. A thickness changing groove portion 21 and a second plate thickness changing groove portion 22 are formed.
Thereby, when the door is closed, the pressing force concentrated on the first circumferential surface 12 (including the third circumferential surface 16 of the third elastic member 17) of the first elastic member 13 that contacts the surface of the door 2 is dispersed. Therefore, it is possible to prevent the contact surface from warping in the contact surface where the first circumferential surface 12 of the first elastic member 13 is in contact with the surface of the door 2.
In other words, the first circumferential surface 12 of the first elastic member 13 (including the third circumferential surface 16 of the third elastic member 17) does not reduce the contact surface with the surface of the door 2, so that reliable contact and sealing are achieved. Sex can be obtained.

Next, the airtight / soundproof door 1 has at least the first circumferential surface 12 of the first elastic member 13, the third circumferential surface 16 of the third elastic member 17, and the fourth circumferential surface 19 of the auxiliary elastic member 20. Thus, a friction reducing process is performed to improve the slip of each circumferential surface.
For example, the friction reducing process is performed by applying molybdenum to at least the first circumferential surface 12 of the first elastic member 13, the third circumferential surface 16 of the third elastic member 17, and the fourth circumferential surface 19 of the auxiliary elastic member 20. Alternatively, it is performed by molybdenum electrodeposition.
Accordingly, when the door is closed, the first circumferential surface 12 of the first elastic member 13 that slides in contact with the surface of the door 2, the third circumferential surface 16 of the third elastic member 17, and the second elastic member 20. Since the four-circumferential surface 19 is slippery, the hinge-side corner portion 27 of the door 2 can easily climb over the main elastic member tip D of the main elastic member 18 while smoothly moving over the first elastic member. The contact surface between the first circumferential surface 13 of 13 (including the third circumferential surface 16 of the third elastic member 17) and the surface of the door 2 of the fourth circumferential surface 19 of the auxiliary elastic member 20 is prevented from being frictional resistance. Can be increased without being.
That is, the contact between the first circumferential surface 12 of the first elastic member 13 (including the third circumferential surface 16 of the third elastic member 17) and the surface of the door 2 of the fourth circumferential surface 19 of the secondary elastic member 20. By increasing the surface, reliable contact and sealing can be obtained.
Further, by this friction reduction process, the door of the first circumferential surface 12 of the first elastic member 13 (including the third circumferential surface 16 of the third elastic member 17) and the fourth circumferential surface 19 of the auxiliary elastic member 20 is also provided. The durability can be improved with respect to the sliding portion with the surface of 2.

Next, in the process in which the door 2 is closed to the door frame 3 with the hinge member 4 as the center, the hermetic / soundproof door 1 has the main elastic member 18 in line contact with the surface of the door 2 and then the door 2 moves toward the door center. The amount of surface contact with the surface is increased, and the amount of surface contact with the surface of the door 2 in the direction of the side edge of the door 2 is increased after the secondary elastic member 20 is in line contact with the surface of the door 2. .
Thereby, the entrainment of air to the contact surface that obstructs the contact of the main elastic member 18 and the sub elastic member 20 with the door 2 can be prevented, and the main elastic member 18 and the sub elastic member 20 are in contact with the surface of the door 2. The contact surface to be made can always be brought into contact with the surface of the door 2 in a stable manner.

Next, when the main elastic member 18 is pressed by the door 2, the hermetic / soundproof door 1 extends the auxiliary elastic member 20 with respect to the base plane 11 before pressing the auxiliary elastic member tip E of the auxiliary elastic member 20. It approaches the perpendicular line that passes through C.
Thereby, it can be set as the drive source which presses a contact surface strongly on the surface of the door 2 with respect to the contact surface contact | abutted to the surface of the door 2 of the subelastic member 20. FIG.
In other words, by firmly pressing the contact surface of the fourth circumferential surface 19 of the secondary elastic member 20 with the surface of the door 2, reliable contact and sealing can be obtained even in the secondary elastic member 20.

Next, the sealing / soundproof door 1 has a packing 6 used in the sealing / soundproof door 1 formed of EPDM (ethylene propylene rubber).
This EPDM is a terpolymer that is classified as an olefin rubber and uses ethylene, propylene, and a diene monomer for crosslinking.
Copolymerization with a third component, a non-conjugated diene monomer, enables sulfur cross-linking (vulcanization), ozone resistance, heat deterioration resistance, weather resistance, cold resistance, polar resistance, inorganic resistance than IIR (butyl rubber) It is excellent in chemical properties and has particularly excellent properties with respect to impact resilience, so it has high durability against repeated pressing.
Therefore, by combining the shapes of the main elastic member 18 and the sub elastic member 20 constituting the packing 6 and the properties of EPDM, the ozone resistance, heat deterioration resistance, weather resistance, and cold resistance required for the hermetic / soundproof door 1 can be achieved. Higher durability can be provided.

Next, in the hermetic / soundproof door 1, the hardness of EPDM used in the packing 6 of the hermetic / soundproof door 1 is 65 degrees to 75 degrees (Hs).
By matching the hardness of the EPDM between 65 degrees and 75 degrees (Hs) with the shapes of the main elastic member 18 and the sub elastic member 20, the pressing of the contact surface of the main elastic member 18 and the sub elastic member 20 to the surface of the door 2 is performed. It is possible to obtain a reliable contact and sealing property by making the pressure appropriate, and to further improve the durability.

Next, in the sealing / soundproof door 1, the packing 6 used in the sealing / soundproof door 1 may be formed of SR (silicone rubber).
This SR may be liquid, grease-like, rubber-like, or resin-like depending on the degree of polymerization, the type of side groups, the degree of crosslinking, etc., and a highly polymerized linear polydimethylsiloxane or a copolymer thereof. Is moderately crosslinked to exhibit rubbery elasticity.
Silicone is a generic term for polysiloxane, a polymer composed of a repeating structure of siloxane bonds (-Si-O) n in which silicon atoms and oxygen atoms are bonded. Of these, organic groups such as alkyl groups and aryl groups are used. Say what you have.
The physical properties of SR are attributed to this molecular structure. Due to its high binding energy, low intermolecular force and high coil-forming ability, heat resistance, cold resistance, ozone resistance, weather resistance, water repellency, electrical insulation, chemical resistance Excellent in properties, compression set, and aging resistance.
In addition, high durability is provided by improved SR in bending fatigue resistance.
Therefore, by combining the shape of the main elastic member 18 and the sub elastic member 20 constituting the packing 6 with the nature of the SR, the ozone resistance, heat resistance, cold resistance, weather resistance and the like required for the hermetic / soundproof door 1 are further improved. High durability can be provided.

Next, when the sealing / soundproof door 1 uses SR for the packing 6 of the sealing / soundproof door 1, the hardness of the SR is set to 20 degrees to 40 degrees (Hs).
By combining the SR hardness of 20 degrees to 40 degrees (Hs) with the shapes of the main elastic member 18 and the sub elastic member 20, the pressing of the contact surface of the main elastic member 18 and the sub elastic member 20 to the surface of the door 2 is performed. It is possible to obtain a reliable contact and sealing property by making the pressure appropriate, and to further improve the durability.

In the sealing / soundproof door 1, the thickness of the plate-like bodies of the main elastic member 18 and the secondary elastic member 20 of the packing 6 used in the sealing / soundproof door 1 is 1.2 mm to 1.5 mm.
Accordingly, the pressing force of the contact surface of the main elastic member 18 and the sub elastic member 20 to the surface of the door 2 is made appropriate to obtain reliable contact and sealing, and the main elastic member 18 and the sub elastic member 20 can be sealed. The size can be made inconspicuous without being caught.

  In addition, this invention is not limited to such embodiment at all, and can be implemented with various aspects in the range which does not deviate from the summary of this invention.

It is a perspective view explaining the composition of the sealing and soundproof door concerning this embodiment. It is sectional drawing of the packing explaining the shape of a packing. It is II partial sectional drawing explaining the state before a door contact | abuts to packing. It is II partial sectional drawing explaining the state which the hinge side corner | angular part of the door contact | abutted to the main elastic member of the packing. It is the II partial sectional view explaining the state where the main elastic member of packing has already contacted the surface of the door, and the subelastic member contacted the surface of the door. It is II partial sectional drawing explaining the state of a door and packing when a door is completely closed by the door frame. It is II partial sectional drawing explaining the state which the 1st circumferential surface of a main elastic member can strongly press the 4th circumferential surface of a subelastic member to the edge part of the surface of a door. It is an II-II partial sectional view explaining the state where the free end of the door contacted the main elastic member of packing. It is a III-III partial sectional view explaining the state where the upper end part of the door contacted the main elastic member of packing. It is IV-IV partial sectional drawing explaining the state which the lower side edge part of the door contact | abutted to the main elastic member of the packing.

DESCRIPTION OF SYMBOLS 1 Sealing / soundproof door 2 Door 3 Door frame 4 Hinge member 5 Fitting groove part 6 Packing 7 Fitting part 8 Base part 11 Base plane 12 1st circumferential surface 13 1st elastic member 14 2nd circumferential surface 15 2nd elastic member 16 Third circumferential surface 17 Third elastic member 18 Main elastic member 19 Fourth circumferential surface 20 Sub elastic member 21 First plate thickness changing groove portion 22 Second plate thickness changing groove portion

Claims (11)

A hinge member;
A door attached to the hinge member and opening and closing around the hinge member;
A door frame that houses the door when the hinge member is attached and the door is closed around the hinge member;
A fitting groove provided in the door frame;
A crimping member attached to the fitting groove,
The crimp member is
A base portion having a fitting portion fitted to the fitting groove portion on one side;
A first elastic member of a plate-like body provided with a base plane on the other side of the base, and having a first circumferential surface extending from a predetermined position of the base plane toward the side edge of the door; A second elastic member of a plate-like body extending from the base plane toward the side edge of the door with a second circumferential surface at a predetermined distance from the elastic member to the side edge of the door; A main elastic member formed by a plate-like third elastic member that connects the elastic member and the second elastic member with a third circumferential surface continuous to the first circumferential surface and the second circumferential surface;
A sub-elastic member of a plate-like body extending from a predetermined position of the first circumferential surface of the first elastic member with a fourth circumferential surface in the direction of the center of the door,
When the door is closed to the door frame with the hinge member as a center, the secondary elastic member contacts the door surface after the main elastic member contacts the door surface. Sealed and soundproof door.   The secondary elastic member extended from the first circumferential surface of the first elastic member and the first elastic member extended from the extension point of the secondary elastic member are perpendicular to the base plane passing through the extension point. As a reference, the secondary elastic member is disposed and extended in the direction toward the center of the door, and the first elastic member is disposed and extended in the direction toward the side edge of the door. The hermetic / soundproof door according to claim 1, wherein the distal ends are extended away from each other.   The plate thickness changing groove is formed on the outer side of the second elastic member forming the main elastic member and the inner side of the third elastic member along a direction orthogonal to the cross section of the main elastic member. The hermetic / soundproof door according to claim 1.   At least the first circumferential surface of the first elastic member, the third circumferential surface of the third elastic member, and the fourth circumferential surface of the auxiliary elastic member reduce friction to improve the sliding of the respective circumferential surfaces. The hermetic / soundproof door according to any one of claims 1 to 3, wherein the door is processed.   In the process in which the door is closed to the door frame with the hinge member as the center, the main elastic member increases the amount of surface contact with the door surface in the door center direction after linear contact with the door surface, and The secondary elastic member increases the amount of surface contact with the surface of the door in the direction of the side edge of the door after making line contact with the surface of the door. Sealed and soundproof door as described.   The front end of the secondary elastic member approaches the perpendicular passing through the extension point of the secondary elastic member with respect to the base plane before pressing when the main elastic member is pressed by the door. The hermetic / soundproof door according to any one of claims 1 to 5.   The hermetic / soundproof door according to any one of claims 1 to 6, wherein the pressure-bonding member is formed of EPDM (ethylene propylene rubber).   8. The hermetic / soundproof door according to claim 7, wherein the hardness of the EPDM is 65 degrees to 75 degrees (Hs).   The hermetic / soundproof door according to any one of claims 1 to 6, wherein the pressure-bonding member is formed of SR (silicone rubber).   The hermetic / soundproof door according to claim 9, wherein the SR has a hardness of 20 to 40 degrees (Hs).   11. The hermetic / soundproof door according to claim 1, wherein a thickness of the plate-like body of the main elastic member and the sub elastic member is 1.2 mm to 1.5 mm.

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