JPH0620767B2 - Method of manufacturing anti-vibration structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method of manufacturing a vibration-proof structure for preventing vibration of a vibration-isolated body such as a structure.

<Prior Art> As a method of preventing a structure or the like from vibrating due to vibration propagating in the ground, a vibration damping structure 1 as shown in FIG. 6 has been conventionally used.

This anti-vibration structure 1 includes a rigid member 1 such as a steel plate at intervals.
1 is located, an elastic member 12 is arranged between them, and they are joined together by an adhesive to be integrally formed.

Then, as shown in FIG. 6, the vibration isolating structure 1 is used as a partition member having a plurality of units installed between the structure and the ground around the structure, and the vibration propagating in the ground or in the liquid. By effectively dampening, blocking, and reflecting, the structure is effectively prevented from vibrating, or the vibration generated from the structure is prevented from propagating to the outside.

<Problems to be Solved by the Present Invention> In the case of manufacturing the vibration damping structure 1, conventionally, the rigid member 11 and the elastic member 12 such as natural rubber or synthetic rubber are manufactured separately, and they are alternately arranged. Then, the elastic member 12 is heated in a heating device to be vulcanized and hardened, and the adhesive is hardened to be integrated with the rigid member 11.

However, in this conventional method, it is necessary to heat-treat once it has been manufactured into a predetermined shape, which takes a lot of time and labor, and it is workable to dispose it in two or more intervals. Was impossible.

Further, when manufacturing the large vibration isolating structure 1, a large heating device is required, and the equipment cost and maintenance cost thereof are very high, which is uneconomical.

<Object of the Invention> The present invention has been made to solve the above problems, and it is possible to easily and economically manufacture a vibration damping structure that effectively damps a predetermined vibration. An object of the present invention is to provide a method of manufacturing a vibration-proof structure that can be manufactured.

<Means for Solving Problems> That is, according to the present invention, a rigid member and an elastic member are arranged alternately between a vibration-isolated body and surrounding ground to prevent vibration of the vibration-isolated body. In the method for manufacturing an anti-vibration structure integrally formed by arranging the two components, a flat rigid member and an undiluted solution of an elastic member are placed at both ends in a hollow press die having open inner ends and a predetermined inner shape. And a rigid member is alternately placed so that the rigid member is positioned in the mold, and the rigid member and the elastic member are axially compressed and integrally formed in a press die. Is.

Further, a plurality of rigid members formed in a bowl shape are arranged in a hollow press die having an open-ended type having a predetermined inner shape, with the bowl-shaped opening portions facing in the same direction and spaced apart from each other. At both ends sandwiching the member group, flat end face members each having at least one face formed in a flat shape are arranged with their flat faces facing outward, and between the rigid members and between the rigid member and the flat end face members, elastic members are provided. A method for manufacturing a vibration-proof structure, comprising injecting an undiluted solution and compressing the rigid member, the flat end face member, and the elastic member in an axial direction in a press die to integrally form them.

<Structure of the Present Invention> The present invention will be described in detail below.

<A> Pressing Device (FIG. 1) The pressing device of the present invention comprises a press die 2, a press base 21 and a press shaft 22.

The press die 2 is a hollow mold material having open inner ends and a predetermined inner shape.

The inner shape of the press die 2 is formed to be equal to the outer peripheral shape of the rigid member 11 and slightly larger.

For example, when the circular rigid member 11 as shown in FIG. 1 is used, the press die 2 is formed in a tubular shape whose inner diameter is slightly larger than the diameter of the rigid member 11.

Further, in the vicinity of the open end of the press die 2 (in the vicinity of the upper end portion in FIG. 1), an injection portion 23 of the tubular body is provided so as to communicate with the inside of the press die 2.

<B> Injecting a rigid member and an elastic member undiluted solution A disc-shaped rigid member 11 formed of a steel plate, lead, aluminum, a resin plate, or the like, and an undiluted solution 13 of an elastic member 12,
The press die 2 placed on the upper surface of the press table 21 while standing upright.
Throw in.

First, the rigid member 11 is put into the press die 2, and then the stock solution 13 is poured into the press die 2 from the pouring portion 23.

Next, the rigid member 11 is charged again, and the stock solution 13 is injected,
By repeating this operation, the rigid member 11 and the stock solution 13 are alternately charged into the press die 2.

Then, finally, the rigid member 11 is inserted to complete the press preparation.

The rigid members 11 may be arranged at equal intervals in the axial direction or may be arranged unevenly.

<C> Material of Elastic Member As the material of the elastic member 12, it is necessary to use a material that has elasticity enough to fulfill the vibration damping function when cured and has adhesion.

Therefore, as the material of the stock solution 13 of the elastic member 12, it is desirable to select a material having long-term durability in view of the purpose of use, and a polyurethane elastomer is typical. Examples of the polyol include polyether polyol and polyester polyol as inexpensive materials.

As the polyisocyanate, tolylene diisocyanate, 4,4'-diphenylmethane diisocyanate and the like can be used.

Among them, the polyether polyol is excellent in durability and alkali resistance as an elastomer and has a low compressive Young's modulus.

Furthermore, since it has good chemical resistance, it is one of the most desirable materials with less permanent set against vibration under load.

<D> Integral formation of vibration-proof structure by pressing By the press shaft 22, the rigid member 1 at the upper end in the press die 2
1 is pressed downward in the axial direction.

Then, the rigid member 11 and the stock solution 13 are compressed, and the stock solution 1
Since 3 has adhesiveness, it is possible to manufacture the vibration-damping structure 1 that is in close contact with each rigid member 11 and is strongly integrated.

In the case of pressing, a batch type in which a predetermined amount of the rigid member 11 and the stock solution 13 are put into the press die 2 and then pressing, and a continuous type in which the rigid member 11 is pressed each time are considered.

<E> When using a mandrel (Fig. 3) As shown in Fig. 3, the through hole 1 is formed in the center of each rigid member 11.
It is also conceivable that the opening 4 is provided, a receiving hole 24 is also provided in the center of the press table 21, the mandrel 3 is passed through each through hole 14, and the lower end portion thereof is fitted into the receiving hole 24.

According to this, it is possible to prevent the rigid member 11 from swinging during pressing.

<F> When a rigid member having another shape is used (FIGS. 4 and 5) As the rigid member, for example, a disk-shaped, rectangular-shaped, donut-shaped, ring-shaped, or conical-shaped member can be used.

FIG. 4 shows the case where the bowl-shaped rigid member 4 is used.

In this case, a plurality of bowl-shaped openings of the rigid member 4 are arranged in the press die 2 in the same direction (downward in FIG. 4) at intervals, and the rigid member 4 group is sandwiched. At both ends (upper and lower ends in FIG. 4), flat end surface members 5 and 51 having at least one surface formed in a flat shape are arranged with their flat surfaces 53 and 54 facing outward.

The inner surfaces of the flat end surface members 5 and 51 may be formed in a concavo-convex shape so as to match the concavo-convex portion of the rigid member 4, as shown in FIG.

In addition, between the rigid members 4 and between the rigid member 4 and the flat end face members 5, 5
During the period 1, the stock solution 13 is alternately injected in the same manner as described above.

In this state, pressing is performed to form an integrated vibration damping structure 6.

As shown in FIG. 5, the anti-vibration structure 6 includes a rigid member 4
Since the cover portion 41 is embedded so as to grip the elastic member 12, the separation of the rigid member 4 and the elastic member 12 can be prevented even when the shearing force in the direction perpendicular to the axis acts. .

Further, since the flat surfaces 53 and 54 are formed at both ends,
It can be easily installed between structures and the ground.

<Effects of the Present Invention> As described above, the present invention can expect the following effects.

<B> When manufacturing a vibration-proof structure, conventionally, a rigid member and an elastic member are manufactured separately, and they are alternately arranged and heated in a heating device to melt the elastic member to form a rigid member. The method of integration is adopted.

For this reason, in this conventional method, it is necessary to perform heat treatment after manufacturing once into a predetermined shape, which requires a lot of labor and time.

On the other hand, in the present invention, the rigid members are arranged at intervals in the press die, the undiluted solution of the elastic member is injected between the rigid members, and the mixture is compressed and cured to strongly integrate the rigid member and the elastic member. A vibration damping structure can be manufactured.

Therefore, unlike the conventional method, it is not necessary to perform the work in two steps, and the vibration damping structure can be easily manufactured in a very short time, and continuous production is possible.

<B> Conventionally, when manufacturing a large vibration-proof structure,
A large pressure heating device is required, and the equipment cost and maintenance cost are very high, which is uneconomical.

INDUSTRIAL APPLICABILITY The present invention is suitable for manufacturing a large vibration isolating structure such as a built-in panel from a small vibration isolator by using a small or medium-sized mold, and a heating device is unnecessary, which is very economical. In comparison with the case where the conventional rubber or the like is used for manufacturing, the effective vibration damping effect can be obtained with a size of 1/10 or less.

<C> Use for vibration prevention of small motors, mechanical vibration of printing machines, impact of punching machines, vibration of transportation facilities, noise, explosion noise, explosion shock, earthquake, wind vibration, temporary anti-vibration measures at construction sites. It is possible to provide a wide variety of vibration absorbing materials and vibration absorbing materials.

<D> By inserting a mandrel through the center of each rigid member in the press die, it is possible to prevent the rigid member from swinging during pressing.

Therefore, a highly accurate vibration damping structure can be manufactured.

[Brief description of drawings]

Fig. 1: Explanatory drawing of the method for manufacturing the anti-vibration structure using a flat plate rigid member Fig. 2: Completion drawing of the anti-vibration structure using a flat plate rigid member Fig. 3: Using a mandrel 4 is an explanatory view of a method of manufacturing a vibration-proof structure using a bowl-shaped rigid member. FIG. 5 is a completed view of a vibration-proof structure using a bowl-shaped rigid member. Figure 6: Illustration of use of anti-vibration structure

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Kenji Ito 2-13-10-202 Yokodai, Isogo-ku, Yokohama-shi, Kanagawa Prefecture (72) Nobuaki Sakaki 167-1 Kozukue-cho, Kohoku-ku, Yokohama-shi, Kanagawa

Claims (2)

[Claims] 1. Arranged between a vibration-isolated body and surrounding ground,
A method for manufacturing a vibration-proof structure, which comprises integrally arranging rigid members and elastic members alternately to prevent vibration of a vibration-isolated body, comprising: a hollow press die having open inner ends and a predetermined inner shape. Then, a plate-shaped rigid member and an undiluted solution of an elastic member are alternately charged so that the rigid members are positioned at both ends, and these rigid member and elastic member are compressed in the axial direction in the press die. A method for manufacturing an anti-vibration structure, which is characterized in that it is integrally formed as a whole. 2. Arranged between the vibration-isolated body and the surrounding ground,
A method for manufacturing a vibration-proof structure, which comprises a rigid member and an elastic member alternately arranged to integrally prevent vibration of a vibration-isolated body, wherein a hollow press die having a predetermined inner shape and open both ends. In addition, a plurality of bowl-shaped rigid members are placed with the bowl-shaped openings facing in the same direction at intervals, and at least one surface is formed flat at both ends sandwiching these rigid member groups. The flat end face members are placed with their planes facing outward, and the stock solution of the elastic member is poured between these rigid members and between the rigid member and the flat end face members, and these rigid members and flat end faces are placed in the press die. A method for manufacturing an anti-vibration structure, wherein the member and the elastic member are axially compressed and integrally formed.