CA2367529A1

CA2367529A1 - Shell, particularly for sports shoes

Info

Publication number: CA2367529A1
Application number: CA002367529A
Authority: CA
Inventors: Andrea Brait
Original assignee: Benetton Group SRL
Current assignee: Benetton Group SRL
Priority date: 2001-02-13
Filing date: 2002-01-11
Publication date: 2002-08-13
Also published as: JP2002238605A; EP1230867A1; US20020108271A1; ITTV20010014V0; ITTV20010014U1

Abstract

A shell, particularly for sports shoes, such as for example skates, has a size, preselected during production, that is obtained by selectively connecting a separate front toe portion and a separate rear heel portion to a central body for supporting the sole of the foot.

Description

.v The present invention relates to a shell; particularly for sports shoes such as, for example, a skate.
Shells made for example of plastics or carbon and constituted by a single s body, obtained by molding, are currently known.
A conventional shell is shaped complementarily to the foot, so as to wrap around its sole, tip and heel, and also covers the region located proximate to the malleoii.
In conventional skates, a soft shoe, an upper cuff, and a lower frame for io connection to a plurality of wheels or to a blade for gliding over ice, are associated with such conventional shell, which is rigid.
However, such conventional structure requires providing, for each skate size; a specific mold suitable to obtain the corresponding shell having the required size.
is Moreover, in order to offer better comfort to the user; in some cases the shells are produced also in intermediate sizes between two successive standard sizes; but this requires the use of additional padding to compensate fox the greater space.
The need to provide as many molds as there are sizes, entails even higher ao costs if one wishes to manufacture skates in intermediate sizes.
Accordingly, the manufacturing process described above; suitable to obtain conventional shells, clearly has the drawback of requiring a large number of molds.
Such drawback therefore translates into a high production cost for each 2s individual shell and accordingly also translates into a high production cost for the sports shoe.
Moreover, when the number of required items per size varies, the time required to reset the machines is long, and this entails a further increase in production costs.

..t ' ~ s 2 The aim of the present invention is therefore to solve the noted technical problems, eliminating the drawbacks of the cited prior art, by providing a shell that can be produced with reduced production costs particularly for s manufacturing roller skates and ice skates.
An important object of the invention is to provide a shell that allows to reduce the number of molds required to produce shells of every required size.
Another important object is to provide a shell that allows high flexibility io in the production of shells for sports shoes by allowing to vary the number of manufactured items per size rapidly and with shorter machine resetting times.
Another obj ect is to reduce inventory costs and simplify inventory management.
is Another object is to provide a structurally simple shell that can be obtained with conventional machines.
This aim and these and other objects that will become better apparent hereinafter, are achieved by a shell, particularly for sports shoes, characterized in that it has a size; preselected during production, that is ao obtained by selectively connecting to a central body for supporting the sole of the foot a separate front toe portion and a separate rear heel portion:
Further characteristics and advantages of the invention will become better apparent from the detailed description of a particular embodiment, illustrated as only by way of non-limitative example in the accompanying drawings, wherein:
Figure 1 is a perspective exploded view of the shell according to the invention;
Figure 2 is a perspective view of the shell;
so Figure 3 is a side view of the shell according to the invention.

-,1 4 ,.
With reference to the above cited figures, the ref. numeral 1 designates a shell, particularly usable in the manufacture of sports shoes; such as for example in-line skates or ice skates.
s The shell 1 comprises a central body 2, for supporting the sole of the foot, constituted by a first surface 3, shaped approximately complementarily to the sole of the foot, and from which two wings 4a and 4b protrude laterally.
The wings constitute two first lateral containment rims for the user's foot.
The first front end Sa and the second rear end Sb of the central body 2 are so substantially flat and the toes or the metatarsal region and the heel of the foot protrude from the first surface 3.
The central body 2 is associated with a separate toe portion 6, arranged at the front, and with a separate rear heel portion 7.
The toe portion 6 has a second flat surface 8, from which a second raised 15 rim, designated by the reference numeral 9, for containing the tip of the user's foot protrudes laterally and frontally.
The heel portion 7 is constituted by a third flat surface 10, from which a third raised rim designated by the reference numeral 11 protrudes laterally and to the rear, in order to contain the user's heel.
20 The first and second ends 5a and Sb of the central body 2 are arranged above the second and third flat surfaces 8 and. 10, respectively of the toe portion 6 and of the heel portion 7, so that the second and third raised rims and 11 thereof are arranged externally to the pair of wings 4a and 4b, constituting a single perimetric rim 12 which contains the foot and prevents as lateral movements thereof.
The shape of the central body 2, of the toe portion 6 and of the heel portion 7 is such that they can be selectively mutually associated, the toe portion 6 and the heel portion 7 being able to slide longitudinally with respect to the central body 2, as schematically shown in Figure 3.
3o Once the position of the toe portion 6 and of the heel portion 7, with respect to the central body 2, has been determined, according to the required size, the toe and heel portions may be fastened to the central portion.
In this manner it is possible to obtain shell structures of different sizes;
so as to cover at least two successive sizes, without the need to have a mold for s each size, including intermediate sizes.
It is in fact sufficient to have a mold for each one of the three parts that compose the invention; in this manner; one also has a distinct reduction in the space required for inventory and in the minimum number of parts in stock, with a substantial cost reduction.
to It has thus been found that the invention has achieved the intended aim and objects, a shell having been provided that allows to reduce production costs for the manufacture of shells for sports shoes, since it reduces the number of molds required to manufacture shells of any required size and also reduces inventory costs while simplifying inventory management.
is The invention also allows high flexibility in the manufacture of shells for sports shoes, since it is possible to vary the number of items manufactured per size simply by acting on the procedures for mutually connecting the central body, the toe portion and the heel portion.
The materials used, as well as the dimensions than constitute the ao individual components of the invention, may of course be more pertinent according to specific requirements.

Claims

1. A shell, particularly for sports shoes, wherein it has a size, preselected during production, that is obtained by selectively connecting a separate front toe portion and a separate rear heel portion to a central body for supporting the sole of the foot.

2. The shoe according to claim 1, wherein said central body is constituted by a first surface that is shaped approximately complementarily to the sole of the foot and from which two wings protrude laterally, said wings constituting two first lateral containment rims for said foot.

3. The shoe according to claim 1, wherein said central body has a first front end and a second rear end; which are flat and allow respectively the toes or the matatarsal region of the foot and the heel to protrude from the central body.

4. The shoe according to claim 1, wherein said toe portion has a second flat surface, from which a second raised rim for containing the tip of the foot protrudes laterally and to the front.

5. The shoe according to claim 1, wherein said heel portion has a third flat surface, from which a third raised rim for containing the foot's heel protrudes laterally and to the rear.

6. The shoe according to claim 5, wherein said first end of said central body is arranged above said second flat surface of said toe portion, so that said second raised rim of said toe portion is arranged outside said pair of wings of said central body.

7. The shoe according to claim 6, wherein said second end of said central body is arranged above said third flat surface of said heel portion, so that said third raised rim thereof is arranged outside said pair of wings of said central body.

8. The shoe according to claim 7, wherein said pair of first containment rims and said second and third raised rims constitute, when the shell is assembled, a single perimetric rim containing the foot and preventing lateral movements thereof.

9. The shoe according to claim 1, wherein the shape of said central body;
said toe portion and said heel portion is such as to allow their selective mutual connection, said toe portion and said heel portion being able to slide temporarily longitudinally with respect to said central body.

10. The shoe according to claim 1, wherein laid toe portion and said heel portion are fastened to said central body after setting the size of the shell.