| 摘要 |
<p>The invention relates to a method for manufacturing the sole structure of a shoe, especially a working and safety shoe, and for fixing it to the upper structure (1). A working shoe is normally worn all day long, and thus the feet will start perspiring. Moisture cannot escape from the inside of the shoe. Sole structures are known, in which ventilation has been provided between the inside and the outside of the shoe through a perforated insole, a vapour-permeable membrane and holes in the tread of the sole structure. The manufacture of such shoes is complex and expensive. In accordance with the invention, a breathable sole structure with a straightforward design can be made by direct injection moulding and can be fixed permanently and tightly to the upper structure. In this construction, the honeycomb (8) is fixed to the insole (2) of the upper structure (1) and the mould (30) known per se for the sole structure (4), having pins extending parallel to the sole structure in its side walls, is closed and direct injection moulding is performed. The pins are adapted to extend into close contact with the side walls of the honeycomb (8) in order to provide air vents (9) between the honeycomb and the outside atmosphere. The sole structure is fixed directly to the upper structure. The invention also relates to the mould for carrying out the method.</p> |
