JP2001082551A - Method for manufacturing composite material of elastic body and chain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To maintain a fixed interval between rings to obtain stable perfor mance by disposing a spacer of an elastic body having a fixed width between the rings before a chain is embedded in the elastic body, as for a chain having at least a longitudinal part of the chain embedded in the elastic body. SOLUTION: Rings 2 adjacent to each other to form a chain 1 are placed at a fixed interval, and at least a longitudinal part of this chain 1 is embedded in an elastic body 3 such as rubber, synthetic resin and the like. In this case, the fixed interval between the adjacent rings is maintained by fitting a spacer 4 of the elastic body having a fixed shape between the adjacent rings 2 before the chain 1 is embedded in the elastic body 3. The spacer 4 used is formed by providing unvulcanized rubber 6 around vulcanized rubber 5, and the interval between the rings can be easily adjusted by its plasticity. If the spacer 4 is made of synthetic resin or a foamed body of synthetic resin in particular, a product can be lightened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a composite material in which a chain is embedded in an elastic body.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG.
Is embedded in an elastic body 3 such as rubber or synthetic resin. This composite material has a structure in which a space is provided between adjacent rings 2 constituting the chain 1 and an elastic body is filled and buried in the space. For example, as a manufacturing method thereof, Japanese Patent Publication No. 5-79018 There are technologies like: This is a technique in which a chain is placed on an elastic body and compressed by a press so that the elastic body is filled between the rings constituting the chain so as to be integrated into the elastic body.

[0003]

However, according to such a conventional manufacturing method, in order to fill the gap between adjacent rings with an elastic material, the chain is previously set so that the gap is constant. The intervals between the rings to be configured must be laid constantly. However, this operation is extremely time-consuming, and particularly when the weight of the chain is large, the operation of minutely changing the position of the ring requires a great deal of labor, and there is a problem that good accuracy cannot be obtained.

[0004]

SUMMARY OF THE INVENTION Therefore, the present invention provides an elastic member and a chain which are buried in a state in which the elastic member is interposed between the respective adjacent rings constituting the chain and are integrally formed. In the method of manufacturing a composite material, before embedding the chain in the elastic body, a spacer made of an elastic body having a fixed width is arranged between adjacent rings constituting the chain in advance, and then the chain is embedded in the elastic body. It is characterized in that it is configured integrally.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory view showing a state of molding. In the figure, reference numeral 1 denotes a chain, and rings 2 constituting the chain are in a state in which adjacent members are separated from each other at a predetermined interval. For this purpose, first, an elastic body 3 such as rubber or synthetic resin is laid in a mold (not shown), and the chain 1 is placed on the elastic body 3.

A spacer 4 made of an elastic body having a predetermined shape is fitted between adjacent rings 2 of a chain 1 placed on an elastic body 3 to secure a constant interval between adjacent rings.
As shown in the side view of FIG. 2 and the front view of FIG. 3, the spacer 4 may have any shape as long as it fits between the rings 2. The shape is suitable for workability and accuracy as long as the shape matches the shape, but the shape does not always have to match.

The material is made of rubber, synthetic resin, or an elastic body such as a synthetic resin foam, and the outer periphery may be covered with a rubber sheet or a synthetic resin sheet. When the spacer 4 is made of rubber, vulcanized rubber or unvulcanized rubber may be used. Further, as shown in a side view of FIG. 4, an unvulcanized rubber 6 is provided around a vulcanized rubber 5. Then, the adjustment between the rings becomes possible by the plasticity. When formed from a vulcanized rubber alone, if a force that shrinks the surrounding elastic body 3 is applied in the manufacturing process, the spacer is also compressed. Can be kept constant.

Further, as described above, if the spacer 4 is made of a synthetic resin or a foam of a synthetic resin, the weight of the product can be reduced. For example, the spacer 4 is large and long for mooring offshore structures. It is extremely effective in things. In this manner, the spacers 4 having a fixed width are fitted between the rings 2 constituting the chain 1 so that the distance between the adjacent rings is constant and the periphery is integrally covered with the elastic body 3 so as to be embedded. In the case of rubber, unvulcanized rubber is vulcanized to form an integral composite material. In the case of a synthetic resin, it is molded by heat treatment or chemical treatment depending on the material to form an all-in-one composite material.

In the above description, the spacer 4 is arranged on the compression side, which is the gap between adjacent rings. However, the spacer 4 is arranged as a spacer on the tension side between adjacent rings in the adjacent ring. The positioning of the positioning ring is also possible. In FIG. 1, even if the positioning ring is disposed on the tension side of the central portion 7, the distance between the adjacent rings can be kept constant, and the gap between the rings can be maintained. At the time of manufacture, the elastic body constituting the periphery is filled in the same manner as in the prior art, and the interval between the rings is also kept constant. Furthermore, it may be arranged on both the compression side and the central tension side, which are gaps between the rings.

[0010]

According to the present invention described in detail above, the elastic body and the chain are buried with the elastic body interposed between the respective adjacent rings constituting the chain in the elastic body and are integrally formed. In the method for producing a composite material,
Before embedding a chain in an elastic body, a composite material in which spacers made of an elastic body with a fixed width are placed in advance between adjacent rings that constitute the chain, and then the chain is embedded in the elastic body to form a single unit By doing so, it is possible to form the chain with a constant interval between the adjacent rings constituting the chain, which has the effect of providing a composite material with stable performance.

Further, since the gap is made constant by arranging the spacers between the rings in advance, it is not necessary to adjust the gap between the rings during manufacturing, and the manufacturing operation is greatly improved. become.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a state of molding showing an embodiment.

FIG. 2 is a side view showing an example of a spacer.

FIG. 3 is an explanatory front view.

FIG. 4 is a side view showing another example of a spacer.

FIG. 5 is an explanatory view of a fracture of the composite.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Chain 2 Ring 3 Elastic body 4 Spacer

Claims (6)

[Claims] 1. A method of manufacturing a composite material of an elastic body and a chain, which is buried in a state in which the elastic body is also interposed between the respective adjacent rings forming the chain in the elastic body and is integrally formed therewith. Before embedding in an elastic body, a spacer made of an elastic body with a fixed width is placed in advance between each adjacent ring that constitutes the chain, and then the chain is embedded in the elastic body to form a whole. Of manufacturing composite material of elastic body and chain. 2. The method for manufacturing a composite material of an elastic body and a chain according to claim 1, wherein the spacer is arranged on a compression side between adjacent rings constituting the chain. 3. The method for manufacturing a composite material of an elastic body and a chain according to claim 1, wherein the spacer is disposed on a tension side between the rings constituting the chain. 4. The method for manufacturing a composite material of an elastic body and a chain according to claim 1, wherein spacers are arranged on a compression side and a tension side between adjacent rings constituting the chain. 5. The method for manufacturing a composite material of an elastic body and a chain according to claim 1, wherein the spacer is made of rubber. 6. The method according to claim 1, wherein the spacer is made of a synthetic resin.