Plastic mould monolithic beach sandal
The present invention relates to a plastic mould monolithic sandal using an upper that comprises a continuous base band, with no holes or incisions, directly fixed to the sole, as well as one or more transversal closing straps, each of them composed of two separate ends capable of overlapping and closing.
As it is known, economic models of plastic moulded beach sandals with monolithic structure have been available on the market for some time. These sandals feature a special upper made up of a series of strips that are crossed and laterally joined to the edges of the sole. The upper is an open upper (or semi-upper), that features a strap in the back to embrace the heel of the user.
Although very popular, traditional beach sandals have however shown some functional disadvantages. The first one is due to the special structure of the upper they use.
Being composed of various crossed strips, the upper features a series of wide slots on the entire perimeter of its lower edge, that is the edge which is directly applied to the perimeter of the front half plant of the sole.
While the said slots ensure foot transpiration, at the same time they allow for the easy penetration of sand, dust, pebbles and water, that may cause great discomfort for the user while when walking or when putting the sandal on. It must be said that the strap located in the back of the open upper features a buckle provided with metal tongue which is often subjected to rust or sudden wear, in view of the use of the beach sandals.
According to the current technology, the assembly of the buckles on a traditional sandal of the mentioned type takes place during a specific separate operating stage, that can only be carried out once the complete sandal has been moulded, with a considerable amount of time and labor.
The purpose of the present invention is to realise a plastic moulded beach sandal with monolithic structure capable of eliminating the disadvantages of the current technique, while maintaining the practical and economical characteristics of the traditional items.
First of all, it must be said that the sandal according to the present invention features a special closed upper, basically made up of a perimeter band with limited height–capable of embracing the foot on the top, the sides and the heel–and of two transversal straps.
The perimeter, band is designed to embrace the foot of the user and is directly joined to the perimeter edge of the sole, without featuring openings or incisions in the joining section. This fact prevents the penetration of sand, pebbles, water, etc.
Nevertheless, the sandal according to the present invention is capable of ensuring effective foot transpiration, since the upper is closed by means of two transversal thin straps, the first one located approximately where the toes begin, and the second one approximately at the height of the foot neck. Each strap is composed of two separate ends–an upper and a lower end–that can be permanently joined by means of special innovative closing means integrally obtained during the same production stage with the same material used to mould the sandal, thus eliminating the need for independent closing means with metal structure.
This avoids the typical, uncomfortable translatory movement of the foot, from the back towards the front, which is necessary to introduce the foot under the half closed upper of the plastic mold of beach sandal currently available on the market.
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