IT202000018076A1 - FITTING INSOLE PARTICULARLY BUT NOT EXCLUSIVELY FOR SAFETY SHOES - Google Patents

Description

Patent application for invention entitled "Assembly insole particularly but not exclusively for safety footwear"

DESCRIPTION

The invention object of the present patent application relates to an assembly insole, particularly but not exclusively for safety shoes.

As known, the assembly or construction insole? one of the fundamental components in the creation of a shoe and contextually constitutes the support base of the foot.

The mode? therefore, the production of a mounting insole constitutes the performance of the shoe itself in terms of comfort for the user and also in terms of safety and quality? of the shoe itself.

In particular, in the sector of the production of safety footwear, the manufacturing process of an anti-perforation assembly insole responds to the need of the market and of the final consumer to have a safety shoe which, in addition to meeting the maximum requirements safety, allows you to have / obtain maximum comfort during intensive use to which the shoe? subjected, both in dynamic and static phases.

As known, safety shoes are an individual protective device designed to protect the foot against external aggressions and are made by

an upper, made of different materials, able to wrap around the foot in the upper and lateral part to which it is usually also entrusted with the function of transpiration;

- a steel toe cap or a protective composite material;

from a rigid buttress;

from the sole or tread, made of various materials to obtain specific resistances. Given the specific use to which safety shoes are intended, they must also meet the safety requirements according to current regulations, which guarantee their use in all risk conditions to which the worker is exposed. subjected.

? It is known that safety shoes use the insole in anti-perforation fabric with one or more? layers or a mounting insole with integrated stainless steel plate.

The mounting insole in anti-perforation fabric with one or more? layers or the assembly insole with integrated stainless steel plate must pass the puncture resistance tests required by the mandatory legislation to guarantee protection of the entire sole of the foot from external bodies and sharp objects, such as nails and/or similar objects.

The safety shoes cos? as made and described, they involve poor comfort for the user due to the structure of the shoe itself which, being rigid, in order to ensure maximum protection of the foot, does not allow optimum comfort during use.

State of art

Solutions relating to the production of anti-perforation devices, applied to footwear, are known in the state of the art, some of which are the subject of a patent application.

For example, the patent application US6151803 concerns an improvement of walking through the application of "V" cuts while a portion ? pointing downwards and curved towards the shoe; the main drawback of the solution described by patent US6151803? the lack of guaranteeing comfort throughout the sole of the foot as the structure of the patent? aimed primarily at the forefoot/toe.

Application US2002043005 identifies the solution for covering the steel/Kevalr foil with a soft material that can be the EVA or a similar material that will be? then covered with a membrane that will come? glued or edged to the steel or kevlar base; the main disadvantage of what is described in question US2002043005 ? that the layer of soft material is not? integrated in the anti-perforation assembly insole but placed externally as a foreign body to the structure. This does s? that the internal volumes of the shoe decrease and therefore less comfortable.

The solution described in the patent application number US5996255A concerns the realization of more? layers of metal or anti-puncture fabric called padding, being subsequently stitched between the vamp and the sole; the main disadvantage of the solution described ? that it is not a real padding with ergonomic material but a simple overlapping of layers of anti-perforation fabric.

In the patent IT102016000003160, owned by of the writer, the working process described and claimed provides for the mounting insole to be pressed in order to create, along the entire length, a recess of about 4 mm, obtaining a pressing shape inside which a material is inserted thermoplastic elastomer with properties? elastic and shape memory. In particular, according to what is described and claimed in document IT10201600003160, the thermoplastic elastic material ? in the shape of a beehive, contained by a perforated weave fabric.

According to what is described in patent IT102016000003160, the insole is substantially flat and once the thermoplastic material has been inserted, a sufficient cushioning effect is not achieved, in particular in the rear area of the heel, during walking.

Further disadvantage of the solution described and claimed in patent IT102016000003160? that does not ? it is possible, if necessary, to replace the honeycomb thermoplastic material as it is contained by the perforated weave fabric.

Further disadvantage of the solution described and claimed in patent IT102016000003160? that the pressing shape is obtained for the entire length, or from the extremity? posterior corresponding to the positioning of the heel, along the central part corresponding to the positioning of the metatarsal up to the extremity? anterior corresponding to the positioning of the fingers.

According to the invention object of patent IT102016000003160 the shock-absorbing material inserted in the pressing shape? also present at the forefoot, making the shoe cos? made not perfectly compatible with the provisions of the Law for what? which concerns the assessment of mechanical risk in safety footwear for what? which pertains to the part of the toe cap in steel and/or composite material.

Purpose of the invention object of the present patent application? that of realizing an assembly insole, preferably but not exclusively of anti-perforation fabric, suitably structured to guarantee maximum comfort in the safety shoes and which overcomes the disadvantages of the state of the art described.

Another purpose of the invention object of the present patent application? therefore that of obtaining a safety shoe which is comfortable for the user without precluding safety during use.

This and further purposes are achieved by the invention which is the subject of the present patent application, in particular by means of a method for pressing a first element and obtaining a d? pressing in which a filling material is inserted, said pressing shape being of a shorter length than the length of the first element itself and extending from the end? rear towards the extremity? anterior to the position of the metatarsus.

In a preferential, but not exclusive, form, by pressing the first element, a shape is obtained which is suitably sized so as to present a depth at the rear. greater than the depth? of the silhouette in the forefoot area.

The silhouette cos? obtained is then filled with a thermoplastic elastomeric material with properties? elastic and shape memory, said material resulting in greater thickness in the extremity? rear and lower and in the extremity? front in order to obtain, once inserted in the shape, a coplanarity? of the system.

In a preferential, but not exclusive, embodiment, the mounting insole made according to what has been described above can previously be associated with a foil, preferably but not exclusively in stainless steel, previously shaped in the mode? identical to the shaping of the mounting insole made as described below. The invention object of the present patent application ? shown in Table 1 in which Fig 1, Fig 2 Graphical exemplification of a part of the mounting insole (10) object of the present patent application;

Fig 3: Graphical exemplification of a second part of the mounting insole (10) object of the present patent application;

Fig 4: Graphical example of the mounting insole (10) subject of the present patent application;

Fig 5: Graphical example of a second modality? preferential embodiment of the mounting insole (10) object of the present patent application.

According to the invention object of the present patent application, the mounting insole (10) object of the present patent application ? consisting of a first element (1) which extends from a front tip (1.11) to an extremity? rear (1.12) and which includes an internal shape (2, Fig 1) which extends from the front area (2.1 Fig 1), corresponding to the forefoot, up to the rear area (2.2 Fig 1), corresponding to the position of the heel. According to the invention object of the present patent application, the length L2 (Fig 2) of the internal shape (2. Fig 1) ? shorter than the length LI (Fig 2) of the first element (1, Fig 1.2).

According to the invention object of the present patent application, the depth? of the template (2 Fig 1) in correspondence with the front area (2.1 Fig 1) ? bottom of the depth? of the template (2 Fig 1) in correspondence with the rear area (2.2 Fig 1).

In a preferential form, but not exclusive depth? rear area delta (2.2) ? between 20mm and 10mm; in a preferential form, but not exclusive, the depth? of the front area (2.1) ? between 7mm and 5mm.

In a preferential, but not exclusive, embodiment, the shape (2, Fig 1,2) made according to what has been previously described, is obtained by pressing the material in which ? made the first element (1).

In a preferential, but not exclusive, form, the pressing of the first element (1, Fig 1) is carried out with suitable moulds, in particular to allow the material in which it is realized not to lose the peculiar technical characteristics, especially in the case in which it is made of anti-puncture fabric.

With reference to Fig 1, in order to improve the flexibility? of the first element (1), in the front part (1.1, Fig 1) of the shape (2, Fig 1) a series of further horizontal pressings suitably spaced from each other are made.

A filling element (3, Fig 3) d? length L3 (Fig 3) equal to all moles? shorter than the length L2 (Fig 2) of the template (2, Fig 1); in the rear area (3.2, Fig 3) does the filler element (3) have the same or full height? greater than the depth of the rear area (2.2, Fig 1) of the template (2).

In the front area (3.1, Fig 3) does the filler element (3, Fig 3) have the same or full height? greater than the depth of the front area (2.1. Fig 1) of the template (2); as previously described, in the rear area (3.2, Fig 3) the height of the filling element (3, Fig 3) is greater than the height of the same in the front area (3.1, Fig 3).

In a preferential, but not exclusive, form, the filling element (3, Fig 3) is made of a thermoplastic and shape memory elastomer.

By inserting the filling material (3) into the shape (2) of the first element (1) the assembly insole (10, Fig 4) object of the present patent application is obtained,

in a preferential, but not exclusive, form, the height of the filling element (3) will be able be a few millimeters greater than the depth? overall shape (2) so as to be easily removable and replaceable.

The material with shape memory (3) is approximately 3 mm higher than the space obtained by pressing (1 Fig. 2), such that it protrudes from the mounting insole. This is to allow the insert to be replaced, cos? doing becomes interchangeable. DESCRIPTION OF A FIRST PREFERRED EMBODIMENTAL FORM

With reference to Figs 1,2, 3, 4, in a first preferential embodiment, the mounting insole (10) object of the present patent application? consisting of a first element (1) made of anti-perforation fabric which extends from a front tip (1.11) to an extremity? rear (1.12) and which includes an internal shape (2, Fig 1) which extends from the front area (2.1 Fig 1), corresponding to the forefoot, up to the rear area (2.2 Fig 1), corresponding to the position of the heel. According to the invention object of the present patent application, the length L2 (Fig 2) of the internal shape (2. Fig 1) ? shorter than the length L1 (Fig 2) of the first element (1, Fig 1,2).

According to the invention object of the present patent application, the depth? of the template (2 Fig 1) in correspondence with the front area (2.1 Fig 1) ? bottom of the depth? of the template (2 Fig 1) in correspondence with the rear area (2.2 Fig 1).

In a preferential form, but not exclusive depth? of the rear area (2.2) ? between 20mm and 10mm; in a preferential form, but not exclusive, the depth? of the front area (2.1) ? between 7mm and 5mm.

In a preferential, but not exclusive, embodiment, the shape (2, Fig 1,2) made according to what has been previously described, is obtained by pressing the anti-perforation fabric in which ? made the first element (1).

In a preferential, but not exclusive, form, the pressing of the first element (1, Fig 1) is carried out with suitable moulds, in particular to allow the material in which it is realized not to lose the peculiar technical characteristics, especially in the case in which it is made of anti-puncture fabric.

With reference to Fig 1, in order to improve the flexibility? of the first element (1), in the front part (1.1, Fg 1) of the shape (2, Fig 1) a series of further horizontal pressings are made Fig 1), suitably spaced from each other.

A filling element (3, Fig 3) of length L3 (Fig 3) equal or total length L3 (Fig 3) is inserted inside the shape (2, Fig 1,2), made as previously described. shorter than the length L2 (Fig 2) of the template (2, Fig 1); in the rear area (3.2, Fig 3) does the filler element (3) have the same or full height? greater than the depth of the rear area (2.2, Fig 1) of the template (2),

In the front area (3.1, Fig 3) does the filler element (3, Fig 3) have the same or full height? greater than the depth of the front area (2.1. Fig 1) of the shape (2); as previously described, in the rear area (3.2, Fig 3) the height of the filling element (3, Fig 3) is greater than the height of the same in the front area (3.1, Fig 3),

In a preferential, but not exclusive, form, the filling element (3, Fig 3) is made of a thermoplastic and shape memory elastomer.

By inserting the filling material (3) in the shape (2) of the first element (1) the insole d? assembly (10, Fig 4) subject of the present patent application.

DESCRIPTION OF A SECOND MODE? REALIZATION

With reference to Figs 1, 2,3,4 and 5, in a second preferential embodiment, the mounting insole (10) object of the present patent application? consisting of a first element (1) made of fabric that extends from a front tip (1.11) up to an extremity? rear (1.12) and which includes an internal shape (2, Fig 1) which extends from the front area (2.1 Fig 1), corresponding to the forefoot, up to the rear area (2.2 Fig 1), corresponding to the position of the heel. According to the invention object of the present patent application, the length L2 (Fig 2) of the internal shape (2. Fig 1) ? shorter than the length LI (Fig 2) of the first element (1, Fig 1,2). According to the invention object of the present patent application, the depth? of the template (2 Fig 1) in correspondence with the front area (2.1 Fig 1) ? bottom of the depth? of the template (2 Fig 1) in correspondence with the rear area (2.2 Fig 1).

In a preferential form, but not exclusive depth? of the rear area (2.2) ? between 20mm and 10mm; in a preferential form, but not exclusive, the depth? of the front area (2.1) ? between 7mm and 5mm.

In a preferential, but not exclusive, embodiment, the shape (2, Fig 1,2) made according to what has been previously described, is obtained by pressing the fabric in which ? made the first element (1).

In a preferential, but not exclusive, form, the pressing of the first element (1, Fig 1) is carried out with suitable moulds, in particular to allow the material in which it is realized not to lose the peculiar technical characteristics.

With reference to Fig 1, in order to improve the flexibility? of the first element (1), in the front part (1.1, Fg 1) of the shape (2, Fig 1) a series of further horizontal pressings are made (Fig 1), suitably spaced from each other.

A filling element (3, Fig 3) of length L3 (Fig 3) equal or total length L3 (Fig 3) is inserted inside the shape (2, Fig 1,2), made as previously described. shorter than the length L2 (Fig 2) of the template (2, Fig 1); in the rear area (3.2, Fig 3) does the filler element (3) have the same or full height? greater than the depth of the rear area (2.2, Fig 1) of the template (2).

In the front area (3.1, Fig 3) does the filler element (3, Fig 3) have the same or full height? greater than the depth of the front area (2.1. Fig 1) of the template (2); as previously described, in the rear area (3.2, Fig 3) the height of the filling element (3, Fig 3) is greater than the height of the same in the front area (3.1, Fig 3).

In a preferential, but not exclusive, form, the filling element (3, Fig 3) is made of a thermoplastic and shape memory elastomer.

By inserting the filling material (3) into the shape (2) of the first element (1) the assembly insole (10, Fig 4) object of the present patent application is obtained.

According to the second method? preferential embodiment, the insole (10) is therefore associated with a lamina (5, Fig 5), preferably but not exclusively in stainless steel, said lamina (5) being provided with an extremity pointed front (5.11 Fig 5) and one extremity? rear (5.12). The plate (5, Fig 5) has an internal shape (4, Fig 5) which extends from an anterior area (4.1, Fig 5), corresponding to the forefoot, up to the rear area (4.2 Fig 5), corresponding to the position of the heel. According to the invention object of the present patent application, the length L4 (Fig 5) of the internal shape (4 Fig 5) ? shorter than the length L5 (Fig 5) of the plate (5, Fig 1,2). Furthermore, according to the preferred embodiment, the length L4 (Fig 5) of the internal shape (4, Fig 5) of the lamina (5, Fig 5) is same or all? shorter than the length L2 (Fig 2) of the template (2, Fig 1) of the assembly insole (10).

According to the invention object of the present patent application, the depth? of the template (4 Fig 5) in correspondence with the front area (4.1 Fig 5) ? bottom of the depth? of the template (4 Fig 5) in correspondence with the rear area (4.2 Fig 5).

According to the preferred embodiment described, the depth? of the template (4 Fig 5) in correspondence with the front area (4.1 Fig 5) ? same or all? greater than the depth of the template (2 Fig 1) in correspondence with the front area (2.1 Fig 1) of the assembly insole (10) and the depth? of the template (4, Fig 5) in correspondence with the rear area (4.2 Fig 5) ? same or all? greater than the depth of the template (2, Fig 1) in the rear area (2.2) of the assembly insole (10).

In order to improve the flexibility? of the assembly insole (10) / lamina (5) system, in the front part (4.1 Fig 5) of the template (4 Fig 5) a series of further horizontal pressings ig 2) are made, suitably spaced from each other.

Regardless of the modalities embodiments described above, according to the invention which is the subject of the present patent application previously (3.1, Fig 3) the filling element has the same height or at all greater than the depth of the front area (2.1, Fig 1) of the template (2) and at the rear (3.2, Fig 3) the filling element (3) has the same height or almost all? greater than the depth of the rear area (2.2, Fig 1) of the shape (2); as previously described, at the rear (3.2, Fig 3) the height of the filling element (3) is greater than the height of the same in the front area (3.1).

In a preferential, but not exclusive, form, the filling element (3, Fig 3) is made of a thermoplastic and shape memory elastomer. In a preferential, but not exclusive, form, the height of the filling element can be a few millimeters greater than the depth? overall shape (2) so as to be easily removable and replaceable. The material with shape memory (3) is of a height greater than the space obtained by pressing (2 Fig. 2) by about 3 mm, such that it protrudes from the mounting insole. This is to allow the insert to be replaced, cos? doing becomes interchangeable.

Claims (6)

CLAIMS 1) Mounting insole particularly but not exclusively for footwear, said mounting insole (10) being constituted by a first element (1) which extends forwardly from a toe (1.11) to an extremity? rear (1.12) for a length L1, said assembly insole (10) characterized by the fact that The first element (1) has an internal shape (2) which extends from a front area (2.1) corresponding to the forefoot, up to a rear area (2.2) corresponding to the position of the heel, said internal shape (2) having a length L2 less than the length L1 of the first element (1). According to the invention object of the present patent application, the length L2 (Fig 2) of the internal shape (2, Fig 1) ? shorter than the length LI (Fig 2) of the mounting insole (1); The depth? of the template (2) in correspondence with the front area (2.1) ? bottom of the depth? of the shape (2) in correspondence with the rear area (2.2); A filling element (3) is inserted inside the shape (2). 2) Assembly insole as per claim 1 characterized by the fact that the length L3 of the filling element (3) is? equal or alps? less than the length L2 of the template (2). 3) Assembly insole as per the preceding claims, characterized by the fact that at the rear (3.2) the height of the filling element (3) is equal or entirely the same? greater than the depth of the rear area (2.2) of the template (2). 4) Assembly insole as per the preceding claims, characterized by the fact that at the front (3.1) the height of the filling element (3) is equal or at all the same? greater than the depth of the anterior area (2.1). 5) Insole as per the preceding claims characterized by the fact that the height of the filling element (3) in the rear area (3.2) is greater than the height of the same in the front area (3.1). 6) Insole as per the preceding claims characterized by the fact that the filling element (3) is in shape memory material. 7} Insole as per the preceding claims characterized in that the filling element (3) is inserted in the shape (2). 8) Insole as per the preceding claims, characterized in that the shape (2) is obtained by pressing the first element (1). 9) Insole as per the preceding claims characterized by the fact that a series of further horizontal pressings are made in the front part (2.1) of the shape (2) suitably spaced apart. 10) Insole as per the preceding claims characterized by the fact that the first element (1) ? in anti-perforation fabric. 11) Insole as per claims 1,2, 3, 4, 5, 6, 7, 8, 9 characterized by the fact that it is associated with a plate (5) provided with an extremity? pointed front (5.11 Fig 5) and one extremity? rear (5.12) presenting an internal shape (4) which extends from a front area (4.1) corresponding to the forefoot, to the rear area (4.2), corresponding to the position of the heel for a length L4 shorter than the length L5 of the plate ( 5), said internal shape (4) having length L4 equal or full length? shorter than the length L2 of the template (2) of the assembly insole (10). 12) Insole as per claim 11 characterized by the fact that the depth? of the template (4) in correspondence with the front area (4.1) ? bottom of the depth? of the template (4) in correspondence with the rear area (4.2). 13) Insole as per claims 11, 12 characterized by the fact that the depth? of the template (4) in correspondence with the front area (4.1) ? equal or alps? greater than the depth of the template (2) in correspondence with the front area (2.1) of the mounting insole (10) and the depth? of the template (4) in correspondence with the rear area (4.2) ? equal or alps? greater than the depth of the template (2) in the rear area (2.2) of the assembly insole (10). 14) Insole as per claims 11,12,13 characterized by the fact that a series of further horizontal pressings are made in the front part (4.1) of the shape (4) suitably spaced apart.