JP2009127688A - Method of eliminating gas and method of manufacturing stacked support - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To manufacture a stacked support having a molded body, which is made of the mixture of a plastic flow material and a hard filler and has a low gas content, in the hollow part of the stacked elastic body. <P>SOLUTION: A plurality of mixture pieces 56A are put in the hollow part 28 of the elastic body, pressurized, and formed integrally with each other to mold the molded body 56. The hollow part 28 of the elastic body is closed by closing plates 24 to seal the molded body 56 in the hollow part 28 of the elastic body. The molded body 56 is shear-deformed to extrude the gas mixed in the molded body 56 for forming the gaps between the molded body 56 and the hollow part 28 of the elastic body. The mixture pieces 56A are additionally put in the gaps, pressurized, and shear-deformed to form the molded body 56 with a low air content in the hollow part 28 of the elastic body. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention comprises a gas removal method for removing gas in a mixture from a mixture of a plastic fluid material and a hard filler, and a mixture of a plastic fluid material and a hard filler in a hollow portion formed in the lamination direction of a laminated elastic body. The present invention relates to a method for producing a laminated support having a molded body.

  Conventionally, a laminated support in which elastic plates such as rubber and rigid plates such as metal are alternately laminated has been used as a support for seismic isolation devices. Such laminated supports include, for example, a structure in which a hollow portion is formed at the center and a metal core is press-fitted into the hollow portion. With such a configuration, when the laminated support body undergoes shear deformation, the core plastically deforms to function as a damper.

  By the way, as a core, the thing made from lead (lead plug) whose behavior of plastic deformation is stable is often used. However, since the cost of lead plugs is high when they are discarded, there is also a core using a mixture of a plastic fluid material and a hard filler instead of the lead plug (see Patent Document 1).

  Generally, the kneading of the plastic fluid material and the hard filler is performed using a kneader. A mixture piece 100A of a plastic fluid material and a hard filler kneaded by a kneader is formed into a plurality of irregularly shaped lumps as shown in FIG. 11 (A). It pressurizes, heating (FIG. 11 (B) and FIG. 11 (C)), and shape | molds (molded body) in the shape of a core.

Here, when the plastic fluid material and the hard filler are kneaded by the kneader, a gas may be mixed and the gas may be contained in the mixture piece 100A. When the core is molded using such a mixture piece 100A, gas is mixed in the core. Further, when a plurality of lump-like mixture pieces 100A are put into the molding machine 102, a gap is formed between the mixture pieces 100A. Therefore, even if the mixture pieces 100A are pressure-molded in this state, Air (gas) is mixed in. If the air content in the core increases, the mechanical properties at the time of plastic deformation of the core become unstable, and stable damping performance cannot be obtained.
JP 2006-316990 A

  In consideration of the above facts, the present invention removes gas in a mixture from a mixture of a plastic fluid material and a hard filler to obtain a molded product having a low gas content, and a laminated elastic body. It is an object of the present invention to provide a production method for producing a laminated support having a molded body having a low gas content, which is made of a mixture of a plastic fluid material and a hard filler, in a hollow portion.

  The gas removal method according to claim 1, wherein the gas in the mixture is removed from a mixture obtained by mixing the plastic fluid material and the hard filler, and the mixture is placed in a pressure chamber capable of shear deformation. A step of charging, a step of pressurizing the mixture charged into the pressurizing chamber, and the pressurized mixture is sealed in the pressurizing chamber, the pressurizing chamber is shear-deformed, and the sealed mixture is sealed And a step of shearing and deforming.

  In the gas removing method according to the first aspect, one or more mixtures of the plastic fluid material and the hard filler are put into a pressurizing chamber capable of shear deformation and pressurized. Next, the pressurized mixture is sealed in a pressurizing chamber, the pressurizing chamber is shear-deformed, and the sealed mixture is shear-deformed. By this shear deformation, the gas contained in the mixture and the gas between the plurality of mixtures (only when a plurality of mixtures are introduced) are pushed out to the outside. Thereby, the molded product which consists of a mixture from which gas was removed, ie, the gas content rate was reduced, is obtained.

  The method for producing a laminated support according to claim 2, wherein the rigid plate and the elastic member having an elastic modulus lower than that of the rigid plate are alternately laminated, and the laminated elastic body is formed with a hollow portion in the lamination direction. A method for producing a laminated support having a molded body made of a mixture of a plastic fluid material and a hard filler provided in the hollow portion, wherein a plurality of the plastic fluid material and the hard filler are mixed in the hollow portion. A charging step of charging a mixture piece, a molding step of pressurizing and integrating the plurality of mixture pieces charged into the hollow portion, and molding the molded body; and sealing the molded body in the hollow portion; The elastic body is shear-deformed in a direction crossing the laminating direction, and the sealed molded body is subjected to shear deformation, and after the shear deformation process, the elastic body is formed between the molded body and the hollow portion. Add the mixture piece to the gap Additional charging step, after the additional charging step, pressurizing and integrating the molded body of the hollow part and the added mixture piece, and after the remolding step, the molded body is hollowed A re-shear deformation step of shearing and deforming the sealed molded body by shear deformation in a direction intersecting the lamination direction, and the additional charging step, the re-molding step, The re-shear deformation step is repeated one or more times as one cycle.

  In the manufacturing method of the laminated support body of Claim 2, the several mixture piece which mixed the plastic fluid material and the hard filler is injected | thrown-in in a hollow part at the injection | throwing-in process. Next, the plurality of mixture pieces charged into the hollow part in the molding step are pressurized and integrated to form a molded body. Next, the molded body is sealed in a hollow portion in a shear deformation process, and the laminated elastic body is subjected to shear deformation in a direction intersecting the lamination direction, and the sealed molded body is subjected to shear deformation. By this shear deformation, the gas mixed in the molded body is pushed out of the molded body, and a gap is formed between the hollow portion and the molded body. Next, the mixture piece is additionally charged into the gap formed between the molded body and the hollow part in the additional charging step. Next, the molded body of the hollow part and the added mixture piece are pressurized and integrated in the remolding step. Then, in the re-shear deformation step, the molded body is sealed in the hollow portion, and the laminated elastic body is subjected to shear deformation in a direction crossing the lamination direction, so that the sealed molded body is subjected to shear deformation. When a gap is formed between the hollow portion and the molded body by this shear deformation, the additional charging process, the re-molding process, and the re-shear deformation process are repeated one or more times as one cycle. This repeating operation is repeated until there is no gap between the hollow portion and the molded body. Thereby, gas is removed and the molded object with which the gas content rate became low is provided in the hollow part of a laminated elastic body. As a result, since the hollow portion of the laminated support is provided with a molded body having a low gas content and sufficient strength, the laminated support produced by this production method of the laminated support exhibits stable damping performance. be able to.

  The method for producing a laminated support according to claim 3 includes a laminated elastic body in which a rigid plate and an elastic member having an elastic modulus lower than that of the rigid plate are alternately laminated, and a hollow portion is formed in the lamination direction. A method of manufacturing a laminated support having a molded body made of a mixture of a plastic fluid material and a hard filler provided in the hollow portion, wherein a plurality of mixture pieces obtained by mixing the plastic fluid material and the hard filler are added. A press-fitting step of press-fitting and molding a molded body having the same shape as the hollow part formed by pressing into the hollow part; and a direction in which the molded elastic body is sealed in the hollow part and the laminated elastic body intersects the laminating direction. A shear deformation step of shearing and deforming the sealed molded body, and after the shear deformation step, the mixture piece is additionally charged into a gap formed between the molded body and the hollow portion. Additional injection process and the additional investment After the step, the molded body of the hollow part and the added mixture piece are pressurized and integrated, and after the re-molding process, the molded body is sealed in the hollow part, and the laminated elastic body is A re-shear deformation step that shears and deforms the sealed molded body by shear deformation in a direction crossing the stacking direction, and the additional charging step, the re-forming step, and the re-shear deformation step are performed in one cycle. It is characterized by repeating 1 to several times.

  In the manufacturing method of the laminated support body of Claim 3, the molded object of the same shape as the hollow part shape | molded by pressurizing and integrating the several mixture piece which mixed the plastic fluid material and the hard filler is press-fitting process. It is press-fitted with. Next, the molded body is sealed in a hollow portion in a shear deformation process, and the laminated elastic body is subjected to shear deformation in a direction intersecting the lamination direction, and the sealed molded body is subjected to shear deformation. By this shear deformation, the gas mixed in the molded body is pushed out of the molded body, and a gap is formed between the hollow portion and the molded body. Next, the mixture piece is additionally charged into the gap formed between the molded body and the hollow part in the additional charging step. Next, the molded body of the hollow part and the added mixture piece are pressurized and integrated in the remolding step. Then, in the re-shear deformation step, the molded body is sealed in the hollow portion, and the laminated elastic body is subjected to shear deformation in a direction crossing the lamination direction, so that the sealed molded body is subjected to shear deformation. When a gap is formed between the hollow portion and the molded body by this shear deformation, the additional charging process, the re-molding process, and the re-shear deformation process are repeated one or more times as one cycle. This repeating operation is repeated until there is no gap between the hollow portion and the molded body. Thereby, gas is removed and the molded object with which the gas content rate became low is provided in the hollow part of a laminated elastic body. As a result, since the hollow portion of the laminated support is provided with a molded body having a low gas content and sufficient strength, the laminated support produced by this production method of the laminated support exhibits stable damping performance. be able to.

Since the gas removal method of the present invention has the above-described configuration, the gas in the mixture is removed from the mixture obtained by mixing the plastic fluid material and the hard filler, and a molded product having a low gas content can be obtained.
Moreover, since the manufacturing method of the lamination | stacking support body of this invention was set as the said structure, it manufactures the lamination | stacking support body which has the molding with a low gas content rate which consists of a mixture of a plastic fluid material and a hard filler in the hollow part of a lamination | stacking elastic body. can do.

  FIG. 1 shows a laminated support 12 manufactured using the method for manufacturing a laminated support according to the first embodiment of the present invention. The laminated support 12 is a laminated elastic material in which a plurality of disk-shaped metal plates 18 and a plurality of disk-shaped rubber plates 20 are alternately laminated in the thickness direction (hereinafter, this lamination direction is referred to as “X direction”). A body 16 is provided.

  Flange plates 14 are fixed to both end surfaces of the laminated elastic body 16 in the X direction. The flange plate 14 includes a flange portion 14F that protrudes to the side of the laminated elastic body 16, and a bolt is inserted into a bolt hole (not shown) formed in the flange portion 14F so that the laminated support body 12 is illustrated. It is attached to non-supporting members (for example, building foundations, foundations, grounds, etc.) and non-illustrated supported members (for example, office buildings, hospitals, apartment houses, museums, public halls, schools, government buildings, shrines and temples, bridges, etc.). In the attached state, the supported member is supported by the support member via the laminated support 12.

  The metal plate 18 and the rubber plate 20 constituting the laminated elastic body 16 are firmly bonded to each other by vulcanization adhesion (or by an adhesive) so that they are not inadvertently separated or misaligned. Yes. When the laminated support body 12 receives a horizontal shearing force, the laminated elastic body 16 is also elastically sheared.

  Accordingly, when the supporting member and the supported member are relatively moved (vibrated) in the horizontal direction, the laminated elastic body 16 is elastically sheared and deformed as a whole. Here, as described above, by alternately laminating the metal plates 18 and the rubber plates 20, even when a load acts in the laminating direction, the laminated elastic body 16 is compressed and deformed (that is, the rubber plate 20 is compressed). Can be suppressed.

  The laminated elastic body 16 further includes a covering material 22 that covers the outer end faces of the metal plate 18 and the rubber plate 20 from the periphery. The coating material 22 prevents rain and light from acting on the metal plate 18 and the rubber plate 20 from the outside, thereby preventing deterioration due to oxygen, ozone, ultraviolet rays, or the like. Further, the covering material 22 has a constant thickness so that there is no variation in its strength.

  The covering material 22 can be formed of the same material as the rubber plate 20. In this case, the rubber plate 20 and the covering material 22 can be formed separately and integrated by vulcanization adhesion or the like in a subsequent process. Alternatively, the covering material 22 and the rubber plate 20 may be bonded with an adhesive or the like.

  An elastic hollow portion 28 that penetrates the laminated elastic body 16 in the X direction is formed at the center of the laminated elastic body 16. The elastic hollow portion 28 is a cylindrical space in the present embodiment, but the shape is not limited to a cylindrical shape.

  In the elastic body hollow portion 28, a cylindrical core 30 which is a molded body 56 made of a mixture of a plastic fluid material and a hard filler (the core 30 is a molded body 56 obtained when the laminated support 12 is a product). Is shown). A closing plate 24 is disposed at the end of the elastic body hollow portion 28. The closing plate 24 is formed in a disk shape having a larger diameter than the elastic body hollow portion 28 so that the end of the elastic body hollow portion 28 in the X direction can be closed. By fixing the closing plate 24 to the flange plate 14, the elastic body hollow portion 28 can be sealed. In the laminated support body 12 of the first embodiment having such a configuration, the laminated elastic body 16 is elastic as shown in FIG. 2 due to relative movement (vibration) between the support member and the supported member in the horizontal direction. Shears and absorbs energy.

Next, the process of manufacturing the laminated support 12 having the above configuration will be described.
(Flanged laminated elastic body molding process)
As shown in FIG. 3, a plurality of disk-shaped metal plates 18 and a plurality of disk-shaped unvulcanized rubber plates 20 are alternately stacked in the thickness direction, and an elastic hollow body penetrating in the X direction. The unvulcanized laminated elastic body 16 in which the portion 28 is formed is molded. Next, the flange plates 14 are fixed to both end surfaces in the X direction of the unvulcanized laminated elastic body 16, and the outer peripheral surface of the unvulcanized laminated elastic body 16 is covered with the covering material 22 and then vulcanized. Thereby, the laminated elastic body 13 with a flange is shape | molded.

(Input process)
Next, as shown in FIG. 4, one end (the lower end in FIG. 4) of the elastic hollow portion 28 of the flanged laminated elastic body 13 in the X direction is closed with a closing plate 24. An indeterminate and block-like mixture piece 56A in which a plastic fluid material and a hard filler are mixed is put into the elastic hollow portion 28. The mixture piece 56A is formed by kneading the plastic fluid material and the hard filler in advance using a kneader.

(Molding process)
Next, as shown in FIG. 5, a pressurizing member 44 for pressurizing the plurality of mixture pieces 56 </ b> A introduced into the elastic body hollow portion 28 of the flanged laminated elastic body 13 is inserted into the elastic body hollow portion 28. The plurality of mixture pieces 56A are pressurized. By this pressurization, the gas contained in the mixture piece 56 </ b> A and the gas between the plurality of mixture pieces 56 </ b> A are removed to some extent, the plurality of mixture pieces 56 </ b> A are integrated, and the molded body 56 is molded into the elastic body hollow portion 28. . When the length of the molded body 56 in the arrow X direction is smaller than a predetermined amount, the mixture piece 56A is again charged and pressurized to adjust the length in the arrow X direction. In addition, as an example of the drive source of the pressure member 44 of the present embodiment, a hydraulic actuator, an electric motor, or the like may be used, but it is not necessary to be limited to this example.

(Shear deformation process)
Next, the closing plate 24 is attached to the other end portion of the elastic body hollow portion 28, and the molded body 56 is sealed in the elastic body hollow portion 28. One flange plate 14 is fixed to a support body (not shown), and the other flange is fixed to a support body (not shown) that moves relative to the support device in the horizontal direction (direction orthogonal to the arrow X direction). Next, as shown in FIG. 6, the flanged laminated elastic body 13 is elastically shear-deformed by moving the supported body relative to the support in the horizontal direction. With the shear deformation of the flanged laminated elastic body 13, the molded body 56 in the elastic body hollow portion 28 also undergoes shear deformation. At this time, the gas mixed in the molded body 56 that could not be removed at the time of pressurization in the molding process is pushed out of the molded body 56, and a gap (gas) is formed between the molded body 56 and the elastic body hollow portion 28. A pool) is formed. The flanged laminated elastic body 13 may be subjected to shear deformation a plurality of times.

(Additional input process)
Next, as shown in FIG. 7, the closing plate 24 is removed from the other end portion of the elastic body hollow portion 28, and the mixture piece 56 </ b> A is additionally introduced into the gap between the molded body 56 and the elastic body hollow portion 28.
(Remolding process)
After the mixture piece 56A is additionally charged into the gap, the added mixture piece 56A and the molded body 56 are pressurized and integrated using the pressure member 44. At this time, the gap (gas reservoir) located on the lower side of FIG. 7 is removed by this pressurization (pressurization from the upper side of FIG. 7).
(Re-shear deformation process)
Then, the closing plate 24 is attached to the other end of the elastic body hollow portion 28, the molded body 56 is sealed in the elastic body hollow portion 28, and each flange plate 14 is fixed to the support body and the supported body to provide laminated elastic with flange. The body 13 is subjected to shear deformation again, and the molded body 56 is subjected to shear deformation.

  When a gap is formed again between the elastic hollow portion 28 and the molded body 56 by this shear deformation, the additional charging process, the re-molding process, and the re-shear deformation process are repeated one or more times as one cycle. This repeating operation is repeated until there is no gap between the elastic body hollow portion 28 and the molded body 56. Thereby, the gas is removed, and the molded body 56 having a low gas content is formed in the elastic body hollow portion 28. As a result, the elastic hollow portion 28 of the laminated support 12 is provided with a molded body 56 having a low gas content and sufficient strength. Stable damping performance can be demonstrated.

  Examples of the plastic fluid material mixed in the mixture piece 56A include, but are not limited to, unvulcanized rubber and thermoplastic elastomer having a shear yield stress of 0.1 MPa to 10 MPa. There is no. Examples of the main component (polymer) of the unvulcanized rubber include natural rubber (NR), styrene / butadiene rubber (SBR), styrene / propylene rubber (EPM, EPDM), and silicone rubber (Q). Further, a compounding agent such as carbon black, calcium carbonate, oil or resin may be blended with unvulcanized rubber or thermoplastic elastomer.

  If the shear yield stress of the plastic fluid material is less than 0.1 MPa, the flow resistance force of the plastic fluid material is small, so that a large damping force cannot be obtained, and the shear yield stress of the plastic fluid material is greater than 10 MPa. The plastic flow material cannot be greatly plastically deformed. Therefore, by mixing (kneading) a hard filler with a plastic fluid material having a shear yield stress of 0.1 MPa to 10 MPa, a molded body 56 having a stable plastic deformation behavior can be obtained.

  Moreover, the hard filler mixed with the mixture piece 56A should just be a material which has the hardness which can be regarded as a rigid body with respect to a plastic fluid material. For example, metals, ceramics, engineering plastics, and the like can be applied, but are not limited thereto. Specific examples of the metal include pure iron, and powder mainly composed of iron such as carbon steel and stainless steel.

  The pressure applied to the mixture piece 56A and the molded body 56 in the elastic body hollow portion 28 by the pressing member 44 is preferably 10 MPa to 200 MPa per unit area. By applying pressure with the pressing member 44, the plurality of mixture pieces 56 </ b> A can be integrated, and the gas contained in the molded body 56 can be pushed out of the molded body 56.

  When the mixture piece 56A is pressurized with a force smaller than 10 MPa per unit area, the pressure contained in the mixture piece 56A is insufficient, so that the gas contained in the molded body 56 (core 30) is not sufficiently removed. End up. Further, when the mixture piece 56A is pressurized with a force larger than 200 MPa per unit area, the pressure applied to the mixture piece 56A becomes excessive, and the physical properties of the molded body 56 change. Therefore, by pressing the mixture piece 56A or the molded body 56 with a force of 10 MPa to 200 MPa per unit area, the molded body 56 from which the gas is removed can be obtained without changing the physical properties. Moreover, the temperature at the time of pressurizing the mixture piece 56A in a pressurization chamber shall be 40 degreeC-120 degreeC. If the temperature is lower than 40 ° C., the fluidity of the molded body 56 cannot be obtained sufficiently. If the temperature is higher than 120 ° C., the physical properties of the molded body 56 change.

(Other embodiments)
In the first embodiment, the plurality of mixture pieces 56A are charged into the elastic body hollow portion 28 (charging step), pressurized and integrated to form the molded body 56 (molding step). There is no need to be limited to the configuration, and as shown in FIG. 8, a plurality of mixture pieces 56A are previously put in a mold having a hollow portion having the same shape as the elastic body hollow portion 28, pressed and integrated to form. The body 56 is molded, and this molded body 56 is press-fitted into the elastic body hollow portion 28 of the laminated elastic body 13 with flange (press-in process), and then the molded body 56 is subjected to shear deformation (shear deformation process). It may be. By setting it as such a structure, the manufacturing process of the laminated support body 12 can be shortened.

  In the above-described embodiment, the mixture piece 56A is additionally introduced into the gap between the elastic body hollow portion 28 and the molded body 56 after the shear deformation step. However, the present invention is not necessarily limited to this configuration. As shown in FIG. 9, the mixture piece 56 </ b> A is put in a mold having a hollow portion whose length in the arrow X direction of the elastic body hollow portion 28 is shortened in advance, and is pressed and integrated to form a thin (short) molding. The body 56B is formed in advance, and the molded body 56B may be press-fitted into the gap between the elastic body hollow portion 28 and the molded body 56.

  Furthermore, in the above-described embodiment, the molded body 56 is directly molded in the elastic body hollow portion 28 of the flanged laminated elastic body 13 of the laminated support body 12 to be a product. However, the present invention is not necessarily limited to this configuration. Instead, a molding apparatus composed of the same members as the flanged laminated elastic body 13 may be used. As this molding apparatus 80, for example, as shown in FIG. 10, a molding apparatus 80 that can divide the laminated elastic body 13 with a flange in a direction orthogonal to the arrow X direction is conceivable. When the molded body 56 is molded using the molding apparatus 80, a molded body 56 having a low gas content and sufficient strength is obtained. By simply press-fitting the molded body 56 into the laminated elastic body 16, The laminated support 12 that exhibits stable damping performance can be manufactured.

  The embodiments of the present invention have been described above with reference to the embodiments. However, these embodiments are merely examples, and various modifications can be made without departing from the scope of the invention. It goes without saying that the scope of rights of the present invention is not limited to these embodiments.

It is sectional drawing which shows the laminated support body of embodiment of this invention before a shear deformation | transformation. It is sectional drawing which shows the laminated support body of embodiment of this invention after a shear deformation | transformation. It is sectional drawing which shows the lamination | stacking elastic body formation process with a flange of the manufacturing method of the lamination | stacking support body of embodiment of this invention. It is sectional drawing which shows the injection | throwing-in process of the manufacturing method of the laminated support body of embodiment of this invention. It is sectional drawing which shows the shaping | molding process of the manufacturing method of the laminated support body of embodiment of this invention. It is sectional drawing which shows the shear deformation process of the manufacturing method of the laminated support body of embodiment of this invention. It is sectional drawing which shows the addition addition process of the manufacturing method of the laminated support body of embodiment of this invention, and a remolding process. It is sectional drawing which shows the modification of the manufacturing method of the laminated support body of embodiment of this invention. It is sectional drawing which shows the modification of the manufacturing method of the laminated support body of embodiment of this invention. It is sectional drawing which shows the shaping | molding apparatus for shape | molding the molded object of the lamination | stacking support body of this invention. It is sectional drawing which shows the conventional manufacturing method.

Explanation of symbols

12 Laminated Support 16 Laminated Elastic 18 Metal Plate (Rigid Plate)
20 Rubber plate (elastic member)
28 Elastic body hollow part (hollow part)
30 core 56 molded body 56A mixture piece

Claims (3)

A gas removal method for removing gas in the mixture from a mixture of a plastic fluid material and a hard filler,
Introducing the mixture into a pressure chamber capable of shear deformation;
Pressurizing the mixture charged into the pressurizing chamber;
Sealing the pressurized mixture in the pressurizing chamber, shearing the pressurizing chamber, and shearing deforming the sealed mixture;
A gas removal method comprising: A laminated elastic body in which a rigid plate and an elastic member having an elastic modulus lower than that of the rigid plate are alternately laminated and a hollow portion is formed in the lamination direction, and a plastic fluid material provided in the hollow portion and hard filling A method for producing a laminated support having a molded body made of a mixture of materials,
A charging step of charging a plurality of mixture pieces obtained by mixing a plastic fluid material and a hard filler into the hollow portion;
A molding step of pressurizing and integrating the plurality of mixture pieces charged into the hollow portion, and molding a molded body,
Sealing the molded body in the hollow part, shearing the laminated elastic body in a direction crossing the laminating direction, and shearing deforming the sealed molded body; and
After the shear deformation step, an additional charging step of additionally charging the mixture piece into a gap formed between the molded body and the hollow portion;
After the additional charging step, pressurize the molded body of the hollow portion and the added mixture piece, and remolding step to integrate them,
After the re-molding step, the molded body is sealed in the hollow portion, the laminated elastic body is shear-deformed in a direction crossing the laminating direction, and the sealed molded body is shear-deformed,
And the additional charging step, the remolding step, and the re-shear deformation step are repeated one or more times as one cycle. A laminated elastic body in which a rigid plate and an elastic member having an elastic modulus lower than that of the rigid plate are alternately laminated and a hollow portion is formed in the lamination direction, and a plastic fluid material provided in the hollow portion and hard filling A method for producing a laminated support having a molded body made of a mixture of materials,
A press-fitting step of press-fitting a plurality of mixture pieces obtained by mixing a plastic fluid material and a hard filler, and press-fitting a molded body having the same shape as the hollow part formed into a single piece into the hollow part, and
Sealing the molded body in the hollow part, shearing the laminated elastic body in a direction crossing the laminating direction, and shearing deforming the sealed molded body; and
After the shear deformation step, an additional charging step of additionally charging the mixture piece into a gap formed between the molded body and the hollow portion;
After the additional charging step, pressurize the molded body of the hollow portion and the added mixture piece, and remolding step to integrate them,
After the re-molding step, the molded body is sealed in the hollow portion, the laminated elastic body is shear-deformed in a direction crossing the laminating direction, and the sealed molded body is shear-deformed,
And the additional charging step, the re-molding step, and the re-shear deformation step are repeated one or more times as one cycle.

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