| 摘要 |
PURPOSE:To freely perform the stoppage or continuation of the supply of one elastic material, by providing an opening and closing mechanism, wherein the flow-out of an elastic material is controlled with the sliding of a core material guide, to at least one of the outflow ports of a first and second elastic materials. CONSTITUTION:A first cap 18 and a second cap 20 are contacted at a B-point to supply a first elastic material from a first supply passage 16 under a 'close' state while a second elastic material is supplied from a second supply passage 17a. Whereupon, the first elastic material is at first adhered to the surface of the core material 15 protruded from the passage 14 formed in a core material guide 13 and the second elastic material passing through the supply passage 17a and a communication hole 18a is adhered to the surface of said core material 15. During the above-mentioned operation, if the core material guide 13 is moved to the right, the first cap 18 connected and fixed to the core material guide 13 by a connection material 19 also similarly moves to the right and, therefore, the contact part at the aforementioned B-point between the first cap 18 and the second cap 20 comes to an 'open' state. As a result, the second elastic material supplied through a second supply passage 17b becomes possible to flow out. |
