| 摘要 |
A mould with an intermediate mobile surface for the direct moulding of a membrane as an accessory for shoe soles. The membrane has a series of spaced apart suction cups moulded onto a support made of breathable or hydrophilic and waterproof material. The mould is divided into three parts, an upper part which acts as a cover of the mould, an intermediate mobile part for directly moulding the suction cups onto the support and a lower part for shaping the suction cups through pressure moulding of the intermediate mobile part. Pins located on the lower part are automatically removed as a result of upward movement of the intermediate mobile part determined by a joint functional combination of the relaxing of mechanical pressure of the intermediate mobile part of the mould once moulding has been completed and by upward thrust of the intermediate part due to the consequent lengthening of springs with which the mould is equipped.
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