Boots – shoes – and leggings – Boots and shoes – Occupational or athletic shoe
Patent
1995-11-02
1997-07-15
Patterson, M. D.
Boots, shoes, and leggings
Boots and shoes
Occupational or athletic shoe
36 45, 36 3A, 12142R, 12146C, A43B 2300, A43B 504, A43D 900
Patent
active
056471505
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a method for manufacturing footwear by injection-molding and to footwear obtained with said method.
BACKGROUND ART
Nowadays it is known to manufacture shoes, such as for example ski boots, which usually comprise a shell and at least one quarter, made of plastics, with which soft innerboots are associated to increase the user's comfort.
Equally, it is known to manufacture sports shoes, such as for instance for trekking or climbing, which are usually constituted by a sole with which a shell or upper is associated; a lining or a padding or a sock is inserted or stitched inside the shell or upper.
These known solutions have some drawbacks: first of all assemblying the upper and the lining with basically manual operations, such as stitching, gluing, or welding, entails long production times which consequently lead to high production costs.
Furthermore, the use of plastics makes the shell or upper to be considerably rigid. Accordingly, while on one hand the technical features of the shoe can be improved, on the other hand the user's comfort and foot transpiration are impaired.
Furthermore, the use of stitches makes the shoe permeable to water.
In order to overcome these drawbacks it is known for example to manufacture overlap-style shells for ski boots: however, this entails another problem linked to the waterproofing of the shell and to the thermal insulation thereof.
DISCLOSURE OF THE INVENTION
A principal aim of the present invention is therefore to solve the described technical problems, eliminating the drawbacks of the prior art, by providing a method for obtaining a shoe which has parts manufactured by injection-molding, has a low overall manufacturing cost, and has, at the same time, optimum waterproofing for the user's foot.
Within the scope of the above mentioned aim, an important object is to provide a method which allows to obtain a shoe having optimum thermal insulation and at the same time optimum transpiration for the user's foot.
Another object is to provide a method which allows to improve the industrialization for producing the shoe.
Another object is to provide a method which allows to obtain an aesthetically improved shoe.
The above mentioned aim and objects, as well as others which will become apparent hereinafter, are achieved by a method and by a footwear item as claimed in the appended claims.
BRIEF DESCRIPTION OF THE DRAWINGS
Further characteristics and advantages of the invention will become apparent from the following detailed description of some particular but not exclusive embodiments thereof, illustrated only by way of non-limitative example in the accompanying drawings, wherein:
FIG. 1 is a side view of a shoe shell or upper, for trekking, mountaineering, or cross-country skiing, manufactured according to the method;
FIG. 2 is a perspective partial rear view of the shoe of the preceding figure;
FIG. 3 is a side view of a shoe shell or upper, for trekking, skating, or leisure, according to a further aspect of the invention;
FIG. 4 is a front perspective view of a shell of an overlap-style ski boot, according to a further aspect of the invention;
FIG. 5 is a side view, of a shell or upper of a ski boot for mountaineering, snowboarding, or Telemark skiing, according to still a further aspect of the invention;
FIG. 6 is a sectional view of a particular combination;
FIG. 7 is a view, similar to the preceding one, of a further combination;
FIG. 8 is a perspective side view of a shoe shell according to a further aspect of the invention;
FIG. 9 is a partial side view of a boot according to a further aspect of the invention;
FIG. 10 is a partial enlarged side view of the boot of the preceding figure in the open position.
WAYS OF CARRYING OUT THE INVENTION
With reference to the figures, the reference numeral 1 generally designates a shoe comprising a sole 2 with which a shell or upper 3 is associated so as to obtain a shoe for trekking, mountaineering, or cross-country skiing.
The method for obtaining this shoe entails, at least re
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patent: 5365679 (1994-11-01), Chemello
Perotto Riccardo
Romanato Mariarosa
Josif Albert
Modiano Guido
Nordica S.p.A.
Patterson M. D.
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