Importance

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Abstract

A method for forming a grommet element including two successive steps which are performed on an assembly of conduits, such as cables or wires. The first step consists of sealing the conduit assembly under pressure, while the second step involves molding PVC or another thermoplastic elastomer over the sealed structure to form the grommet. A mold is also provided for carrying out the method. The mold includes a stationary portion and an axially movable portion. Preferably, the method includes at least one of the following operations or steps: (a) Installing respective connecting terminals on the conduits; (b) Forming a conduit assembly from a plurality of individual conduits, and banding together two proximal points of the conduit assembly; (c) Introducing the conduit assembly into the lower part of a mold; (d) Closing the mold; (e) Moving the two aforementioned proximal points closer together to produce flexural buckling of the conduits in the conduit assembly; (f) Introducing an adhesive mass into the mold, under pressure, at an elevated temperature, during a predetermined period of time; (g) Injecting the hot adhesive between the conduits of the conduit assembly; (h) Cooling the mold to solidify the adhesive; and (i) Molding PVC or another thermoplastic elastomer over the adhesive-sealed conduit assembly, to form a grommet element, and joining the thus sealed conduit assembly to a flange or dividing wall.

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First Claim