SI20347A - Manufacturing method for spectacles and spectacles obtained with such method - Google Patents

Abstract

Manufacturing method for spectacles with the use of at least a first and a second portion of profiled wire (15, 16) of preferably metallic material, and shaped means (19, 20) having the same form and a size slightly greater than that of the lenses, screens, filters and the like. Method in which said first and second wire portion (15, 16) are submitted in succession to different operative phases, in which they are adapted around said shaped means (19, 20) so as to form the frame half-portions (33, 34), which are shaped around said shaped means (19, 20) with the same outline of the lenses, screens, filters etc., in which the frame half-portions (33, 34) are joined to the respective bars (50) through articulation means (39, 40) which are attached to the corresponding frame half-portions, which are submitted, together with said bars (50), to possible adequate protective chemical treatments, and in which the frame half-portions (33, 34) are applied on to the lenses, screens, filters and the like, and the bars (50) are equipped with the respective terminal elements, and afterwards the nose-piece element (59) is applied on to the assembly frame half-portions (33, 34)-lenses, screens, filters and the like, by tightening it together.

Description

The invention relates to a method for the manufacture of glasses, which can be used to make components of a frame for glasses of a particular construction, to mount and support rods by means of a fast shutter system, and to mount glasses for glasses in said frame, the nose portion being used as a locking key for mounting frame and lenses without using welding points and possibly without using screws.

Eyeglass making is a process currently performed by pre-fabricating 20 a suitable frame, usually made of either plastic material molded by a suitable process, such as injection molding, or cut from flat material, or metal in in the form of flat material or wire. Such a frame is then retrofitted with the glass, as well as with the support rods and nose section.

The manufacturing process of this kind involves a large number of labor-intensive, that is, manual, work phases, both for the preparation of the frame mentioned above, and for the adjustment and composition of the supporting rods, nosepiece and glasses in one frame. The following should also be available:

1) expensive tools and machines;

2) skilled and trained workers to carry out each phase in the work process;

io 3) long production time;

4) Significant use of materials.

A method of manufacture of this kind therefore proves to be quite complex and expensive, and also requires the use of a considerable amount of materials for manufacture and of the various components required by the individual structure.

It is therefore an object of the present invention to eliminate the disadvantages of the above-described glasses manufacturing process by performing glasses in a semi-automated process that can be used to produce glasses of various types, shapes and sizes

a) small and simple work phases;

b) reduced labor consumption;

c) a significant reduction in production time;

d) reduced consumption of raw materials, auxiliary materials and secondary materials and products;

e) by minimizing all types of residues and wastes.

This method of manufacture is carried out by the operational phases described in detail, with particular reference to the added claims of the subject patent.

The invention will be better understood by the following description, the description being given by way of non-limiting example only, and by the accompanying drawings, of which:

- Figure 1 schematically shows a front view of the first operational phase of the present manufacturing method and the corresponding machining tools used therein,

- Figure 2 schematically shows a front view of an intermediate product manufactured by the present method, the manufacturing version thereof, and, inter alia, by the operational phase of the present manufacturing method;

- Figure 3 schematically shows a view of a machine tool used in the second operational phase of the present manufacturing method;

- Figure 4 schematically shows a front view of the intermediate obtained in the next, third operational phase of the present method, in a different construction version;

- Figure 5 shows a view of the intermediate shown in Figure 4;

- Figures 6 and 7 show a front elevational view of a detail of one of the components used for the intermediate shown in Fig. 4, in two construction versions;

- Figures 8 and 9 show a floor plan in partial cross-section of a detail of the same component from the part being used, in a further two construction versions;

- Figures 10 and 11 show the respective views in partial cross-section, from the sides and from the front, of the same constituent element shown in Figures 8 and 9, in a different structural version thereof;

io - Fig. 12 shows a partial sectional view from the side of the same constituent element in a further structural version thereof;

- Figure 13 shows a front view of a further component used for the manufacture of glasses;

- Figures 14 and 15 show a partial cross-sectional view from the side of the component and the part shown in figure 10, before and after it is mounted on the product.

The above figures schematically illustrate the various operational stages of the eyewear manufacturing process of the present invention, which can be used to produce, in a semi-automated manner, both innovative and traditional types of eyeglasses that are typically formed from a frame, a pair of vision correction glasses (in the case of glasses with diopter) or tinted lenses (in the case of sunglasses) or a pair of special or machined lenses for vision correction (in the case of safety or sports goggles), as well as a pair of support bars or other support elements made on the sides or top of the frame in order to be able to rest on the individual person's ears or head, together with a single element or a pair or more of the elements that perform the role of the nasal part and allow the glasses to be fitted to the individual person's nose.

In order to manufacture the above-mentioned components of glasses of various types, shapes and sizes according to the present invention, a thin-sectioned bar or a cross-section can be used. wire, preferably of metallic material, in particular, but not exclusively aluminum, of a natural kind or surface-anodized, or also of light alloys of other materials which are light and inexpensive, and preferably having notches or grooves made in the traditional way along the side of the bar, straight along the entire length of the part of the bar being used, the said part of the bar being often available in the form of pieces or bundles of different lengths, previously cut into portions of the same length, allowing a particular frame to be made, as will be described later. In addition, the method also requires support sticks (handles) and nose restraints, which must be designed specifically for a particular model, e.g. special or standard, and should be made according to market requirements, with these support rods and nose supports subsequently being fitted to the individual front of the eyeglass frame manufactured by the subject method in the manner described below. The manufacturing method of the present invention is accomplished by performing a sequence of operational phases using at least two sections of wire marked with reference numbers 15 and 16. These two parts may have the same or different length, depending on the size of the frame to be made. The ends of said wire are inserted and sufficiently, but removably, fixed into suitable pairs of centering and locking elements with reference numbers 17 and 18 in such a way that they extend horizontally and are arranged in the same vertical direction planes reciprocally loaded and in a reciprocally spaced position.

In addition, two patterns or templates with reference numbers 19 and 20 are inserted into the space formed between portions of wire 15 and 16, which are separated and arranged horizontally one by one. This creates pieces of wire of the same shape and size that is slightly larger than the size of lenses, screens, filters and the like, which will be applied to each type of glasses in each individual case in such a way that the shaped parts can later be adapted to them . Such templates shall be supported by an auxiliary support (not shown) in such a way that, from time to time, the axial distance between them may be pre-adjusted for the desired distance. In the present case, this adjustment is achieved by alternating sliding of the support of each of the templates in the corresponding notch, which extends horizontally (not shown), but obviously can also be achieved in other ways, so that in each case, described above. Each of these templates is profiled by the curved half-part, indicated by the reference numbers 21 and 22, ending on one side by the short straight horizontal portions 23 and 24 and by the curved half-parts below, designated by the reference numbers 25 and 26 and terminate, on the one hand, with short straight horizontal portions 27 and 28, identical and consistent with the corresponding horizontal portions connected above by the curved portion 21 and 22, and on the other, be connected to the latter by means of short rectilinear vertical portions 29 and

30.

In addition, these two patterns are symmetrical to one another in such a way that each of the pairs of coherent horizontal portions faces one another and that the vertical portions 29 and 30 face each other and are arranged close together.

In order to allow each part of the wire to be adapted to these two templates, each part of the wire is centered on the template in such a way that during the first operational phase of the method of manufacture in question, the templates are inserted into a notch or a groove from said part of the wire.

Finally, it should be noted that the description always relates to Figure 1 that the parts of the wires 15 and 16 and the samples 19 and 20 are joined by a molding tool preferably made with at least one die formed from the upper half of the die 31 and the lower half of these halves, the upper one is located above the first part of the wire 15 and the lower one below the second part of the wire 16, at the point of contact with the corresponding parts of the wire, and they are classified according to the parts of the wire and according to the patterns, with the upper and lower halves respectively. dies formed in the same way as the corresponding curved parts 21 and 22 above and the curved parts 25 and 26 below, as well as the straight horizontal sections 27 and 28 of subject patterns 19 and 20, and having a flat horizontal shape at the level of the vertical objects 29 and 30 above and the lower curved part. In this later case, the switch is executed for the frame, as will be described later. In the first operational phase of the method of the present invention, while the description still relates to Figure 1, it should be noted that the upper and lower halves of the die 31 and 32 act simultaneously, in a known manner, from their raised initial position drawn in Fig. 1. In the beginning, the halves of the io matrix move in such a way that they are facing each other, which is achieved by a swing that is adjustable in the usual way, in order to allow the parts of the mounting wire and the template to contact, thereby allow for the formation of two half parts of the frames 33 and 34, which are the upper and lower half parts, taking into account the position of the corresponding upper half matrix 31 and the lower and half matrix 32. Later, the two halves of the die are again separated from each other, returning to position , which is depicted in Figure 1, so that the half portions of frame 33 and 34 remaining on the sample can be removed from this site and subjected to the next operational phase.

Even more exhaustively, such removal is done using either different

2o manual systems, either using possible automatic mechanical modes that are inherently known. Such automatic mechanical methods, after removal of the half frame parts, allow them to be arranged for the next operational phase to be described.

The next, second, operative phase of the present method is performed with at least one apparatus described in Figure 3 in order to adapt the rectilinear shape of the frame to the convex shape of the lenses to which the frame will later be attached. This operative phase is called the meniscus formation phase.

s The said apparatus consists of a matrix consisting of the first and second halves of the die, denoted by reference numbers 37 and 38. These two halves of the die are arranged at positions opposite each other and aligned with each other at the level of two longitudinal sides , which are opposite to the frame and are formed by shapes that are complementary and exactly match each other and are identical to the shape of the lenses, screens, filters and the like, as well as the shape of the central switch.

In addition, said halves of the die 37 and 38 are configured with movable components that can vary the distance between lenses, screens, filters, and the like, and are adaptable to lenses, screens, filters and the like, with different and changing sizes and shapes.

The die operates from the initial open position shown in Figure 3, in which both halves of the die 37 and 38 are open and arranged so that half of the frame members can be mounted thereon. Later, the die moves to a closed position (not shown) in which half of the frame is contained

2o in the halves of the die, resulting in the formation of the required frame shape. Later, the matrix returns to the starting position.

Figure 2 shows an intermediate product which is made in a structural version and is shaped in a trapezoidal shape.

Of course, apparatus of a different type can be used according to the invention only as an example, provided that these apparatus in any way make it possible to carry out operative phases identical or similar to those described and contained in the claims of the subject patent.

Turning to Figures 4 and 5, they show an intermediate obtained in the next, third, operational phase of the method, wherein the product drawn in the example is made in a construction version in a form different from that in the picture 2 - is ellipse-shaped instead of the trapezoidal shape of the product of Figure 2. In this third operational phase, in more detail, the corresponding pairs of straight horizontal portions of the half portions of the frames 33 and 34 are joined together without welding, each using clamping parts 39 and 40, the different versions of which are shown in Figures 6-11, which serve to support the rods. In more detail, these rods or handles are formed with an elongated rectilinear portion 41, which is either curved in the form of a sheath 42 or, in the conventional manner, in the staple rear. These rods or handles come in different shapes, types and sizes, and are either manufactured using traditional appliances or custom-made.

Subsequently, the clamping parts may be shaped as described, also by means of apparatus, either of a traditional type, or of a kind specifically designed for such use. In any case, the clamping parts must be such that they can accommodate and accommodate the corresponding pins on the rods.

These clamping parts are secured in place by adhesive materials of traditional types, such as adhesives, adhesives, synthetic resins, etc., or by means of fastening materials (screws, etc.).

In the example shown in Figure 6, it should be noted that each clamping part consists of a bearing groove 43 of rectangular shape that can be mounted on each pair of straight horizontal pieces. Accordingly, it is made with an inner notch 44, the opening of which allows it to be provided on the side thereof, io to attach these horizontal parts thereto; on the other hand it is closed with the bottom

45, in which a hole 46 is provided throughout the portion intended to pass the bolt 47 or the like, such that it is possible to attach the bearing groove to the corresponding straight sections.

In addition, such a bearing groove is integrated in its entirety either with a hinge, with a fixed joint or the like (of the traditional type), or with any of the clamping parts or levers of a type known per se (not shown) to clamp the bar.

Fig. 7 shows that each clamping part always consists of a bearing groove 43, which is adaptable to the corresponding horizontal horizontal parts, but in this case there is no hole through the whole part and screws, but the bearing groove is secured by gluing it to the straight sections mentioned.

Figure 8 shows that each clamping part is always composed of a bearing groove 43, with a hole 46 throughout the part and with a locking screw

47, in which case the groove is in this case formed by a support structure

48, which is perpendicular to it, with a transversely supported support 49 for creating a joint of the associated rod 50, the support 49 being inserted in a hole 51 extending through the entire portion of the same rod.

Fig. 9 shows that each clamping part is assembled as the one in the figure and differs from it in that there is no hole in the bearing groove 43 through the whole part and the screw, but the bearing groove io is secured by means of adhesive as in FIG. 7, and in that the rod 50 is instead of a hole 51 through the entire portion formed in such a way that it is formed by a sheath 42 on a portion of the rod which is a clamping part of the frame, the sheath being subsequently fastened directly to the transverse derived support (pin system with pin).

is Figures 10 and 11 show that each clamping part is made with a recess 52 that can be inserted into each pair of straight horizontal portions of half parts of the frames 33 and 34 and extends in the direction of the user's face, U-shaped, at with the lower portion 53 of the letter U facing outwards and slightly bent inwards with its free end 54, behind the bar support of the rod at its fully open position.

The pillar-like pillar with reference number 55 is fixed by means of a rivet at its ends - on both arms of U. The pin 42 is then centrally fastened near said pillar by the procedure shown in Figure 10, allowing the pillar to move with positions 10b, as indicated by the dotted line in the aforementioned figure, and enabled by the frame 56 before incorporating lenses, glasses, and the like, via position 10a, across the front of the eyeglass frame, again marked by the dotted line, all to position 10c, indicated by continuous lines, by rotation as shown by arrow B.

The wedge 56 fills the U-shaped recess 58 in the clamping part, establishing a convex surface of the sheath 42 and holding it in such a way as to allow the rod (handle) to maintain the position in which it is placed at all times, especially the position, in which the wand must adhere to the wearer's shadow, ensuring that the glasses remain well attached to the head by themselves and do not slip over the nose, and prevent the same wand from breaking or tearing, even after longer usage times than the opposite, quite often happens with traditional glasses.

This is effective in disabling or. avoiding the well-known disadvantage encountered in the conventional shapes of sticks (handles), in which we observe that the staple part gradually loosens and becomes loose so that the sticks that are loosely waving are no longer able to hold any stable position and start free oscillate.

For the purposes of the present invention, the material of which the wedges are made must be substantially solid.

Figure 11 shows a further embodiment wherein the wedge 57 is not made of a substantially solid material but of an elastic material such as rubber, synthetic rubber or synthetic resins, so that the rod can move elastically when the glasses are fitted to the user's face. of position 12a & (solid line) to position 12b (dashed lines), with the elastic pressure of the now visibly deformed wedge 57 being that which acts as a shock absorber. This keeps the wand attached to the head and therefore improves the flexibility of the wand to the individual wearer, significantly increasing the comfort of wearing glasses without having to use expensive elastic io hinges to achieve this goal.

Obviously, the clamping parts described by way of example may also be made in other ways, provided that they can fit the two halves of the eyeglass frame without welding, therefore, without departing from the protection zone of the present invention.

is Afterwards, rods are mounted on the product thus obtained, which enables the rods to be clamped.

These rods 50 are mounted in position by means of fixed joints and columns or similar stapling methods. In this case, the frame is made either with conventional hinges or with couplings or levers on their own

2o by yourself known.

The rod attachment operations can be performed either manually or with the aid of suitable automatic devices. In the next, fourth, operational phase of the production method in question, jointly assembled frames and sticks (handles) are subjected to suitable chemical treatment processes known per se for protective, cleaning and surface finishing purposes. These procedures are intended to obtain the necessary corrosion protection and resistance of the materials used, in particular to enable them to be appropriate under existing health and sanitary regulations, as well as to make the glasses color, decorate and finish and to achieve general aesthetic effects. that we want to achieve.

In this case, the protection and finishing processes can also be eliminated from the glasses manufacturing process, preferably by using materials exposed to these processes directly by the suppliers of the materials themselves during the operational phase of the process and thus pre-prepared to eyewear manufacturers.

In the further, fifth, phase of the subject method, the necessary lenses are inserted into each of the is frames, which can be inserted either manually or automatically, using a suitable automated tool.

After the lenses are inserted, the entire set is tightly pressed together in a convenient manner, thus completing the mounting of the glasses of each type.

In this case, it can be used, depending on the actual needs and

2o uses, lenses of different types, dims and shades for vision correction glasses or sunglasses, presentation or advertisement goggles, etc., as well as protective lenses and / or displays of various types, filters and the like, which can be used in a wide variety of applications in areas such as workshops, offices, sports and leisure, etc.

In addition, the rods are equipped with specially-connected interfaces, which are available separately and for this purpose are attached to these rods again, either by hand or by means of suitable automated tools. Compression of any such frame by means of which the lenses, screens, filters, etc., which are carried out to complete the glasses, are attached to a particular position, is preferably carried out using a suitable special clamp 59 made of plastic material (see Figures 13-15 ), in the form of a central io body 60, which is made with a rectangular recess 61, which can be flexibly adjusted to the connecting part of the glasses 62 of the subject frame and attached to the same part by means of a counter clamp 63, wherein this clamp is made such that it comprises two lateral grips 64 and 65 extending downwards from the central body and designed to be capable of adapting to the nose of each person.

It should be appreciated that instead of a special clamp 59 which serves as a single nose support part, two or more nose supports of different types and commercially available may also be used. In any case, these parts are capable of squeezing the frame together, either by a method similarly described or by attachment methods known per se, without departing from the scope of the invention.

Now the advantages of the method of making glasses according to the present invention are clearly evident and can be summarized here as follows:

1. the reduction of potential breakpoints;

2. the construction of spectacles requiring no welding and possibly without the use of screws;

3. the use of raw materials that have never before been or, at best, have been rarely used in the manufacture of spectacles (such as aluminum, copper, various alloys and the like);

4. the use of a final joint (pin) that is completely different from the joints used so far;

5. simplified assembly of the various component parts of glasses;

io 6. A modular eyeglass construction that allows each of the structural elements to be easily replaceable, i.e. that it can be replaced in a simple, basic way (if necessary because of fractures, the need for adjustments, or even adaptation to changing fashion guidelines or personal requirements);

is 7. a drastic reduction in the cost of making each component of the glasses;

8. Eliminating dependence on specific people for repairs, servicing and the like, thanks to an easy way to replace different elements (direct assembly by

2o customer);

9. Modifying models by replacing different parts or components of glasses;

10. shortening the time required and reducing the work required as well as the operational phases required;

11. improved structural strength of the glasses due to the fact that welding is not required and that screws or other equivalent means are also not required;

12. low consumption and therefore greater savings in the materials used as a result of the use of grooved wire which is integrally used in each frame thus produced, resulting in no residue;

13. the use of pre-treated materials, which eliminates the need for any suitable surface protection and finishing to be carried out at the factory;

14. increased security provided under different conditions of use.

Claims (13)

PATENT APPLICATIONS A method of making glasses, each comprising a frame made of first and second halves, which are joined by means of a stapler; a pair of lenses, screens, 5 filters or the like, each individually inserted between said first and second half frames; a pair of support rods and at least one nose-mounting element, which is secured to the same frame, characterized in that at least one first and one second section of profiled wire (15, 16) is used, preferably made of metallic material , in particular aluminum or light alloys of other materials, suitably fixed with centering and locking elements (17, 18) and template elements (19, 20) having the same shape and slightly larger than the aforementioned lenses, screens, filters and the like, and that the later said first and second portions of the wire (15, 16) is submitted to the first stage by means of compression means (31, 32) in which they are formed with respect to said template elements (19, 20) so that the first is formed and the second half of the frame (33, 34) to the second stage (called the meniscus formation phase), in which said first and second halves of the frame (33, 34) are formed according to said stencils 20 elements (19, 20) by means of further compression means (37, 38) having the same shape as lenses, screens, filters and the like, in a third stage in which said first and second halves of the frame (33, 34) are combined with corresponding rods (50) with clamping elements (39, 40) attached to the corresponding half of the frames, to the fourth stage, in which said first and second halves of the frame (33, 34) and said rods (50) are subjected to the corresponding corresponding chemical treatment for protective, cleaning and surface finishing purposes, with the aim of providing aesthetic and decorative effects, if such treatment is required, and to the fifth stage in which said first and second halves of the frame (33, 34) are mounted on said lenses , screens, filters, and the like, the rods (50) are provided with their terminal elements, and the said nose support portion (59) is subsequently mounted on half-frames, consisting of lenses, screens, filters, and the like; squeezes the sk hope. Method according to claim 1, characterized in that said first and second parts of the wire (15, 16) are advantageously either grooved or grooved along their side in a straight line for the length required for the frame to be obtained, said parts of the wire ( 15, 16) are stretched horizontally and arranged relative to one another on the same vertical plane, positioned reciprocally and reciprocally spaced, such that said template elements (19, 20) are spaced apart, occurs between the two parts of the wire. Method according to claim 2, characterized in that said template elements comprise a first and a second template or with a pattern (19, 20) which are symmetrical and separated from each other, as well as arranged horizontally with respect to each other and reciprocally spaced apart by a size equal to the reciprocal of the distances of said lenses, screens, filters and the like, the said distance being adjustable before the said first operational phase is performed. Method according to claim 3, characterized in that said compression means comprise the first and second halves of the die (31, 32) which are located one above said first portion of the wire (15) and the other below said second portion of the wire (16) , in a position in contact with and aligned with the wires in question and the first and second patterns (19, 20). 5. The method of claim 4, 20, characterized in that said further compression means comprise the first and second halves of the die (37, 38), which are positioned opposite each other and are symmetrical to each other on the plane of the two opposite longitudinal sides of said first and second halves of the frame (33 , 34). 6. The method of the preceding claims, 5, characterized in that said clamping elements comprise a first and a second clamping part (39, 40) which are laterally secured to said first and second half of the frame (33, 34) by means of either adhesive materials such as adhesives, adhesives, and artificial resins of various kinds, or by means of io fastening materials, known in themselves, by which the corresponding rod (50) can be supported in a knee-shaped manner. Method according to claim 6, characterized in that each of said clamping parts (39, 40) is formed from a bearing groove (43) joined either by a hinge, fixed joint or similar traditional element, or by clamping elements , or by means of levers that are known or specially designed to clamp the corresponding rod (50). Method according to claim 7, characterized in that each of said clamping parts (39, 40) extends towards the user's face in a U-shaped configuration, with the bottom (53) facing outwards and slightly bent inwards on its own the free end (54), thereby forming a support for the associated rod to stop adjacent to it when it opens to its most open position, said clamping portion being provided with a pin (55) to attach the rod ( 50) fasten it, as well as with the filler wedge (57), to enable each rod to remain in the position in which it is placed at all times. Method according to claim 8, characterized in that said wedge (57) is made of either a solid material or an elastic material such as rubber, synthetic rubber, synthetic resins or the like. 10. The method of the preceding claims, 20, characterized in that said first and second clamping parts (39, 40) are made with tools that may be of the traditional type or specially designed for this purpose. Method according to the preceding claims, characterized in that each rod (50) is formed by an elongated rectangular part (51) that is curved into a configuration in the form of a sheath (42) at its end 5 is made with said pin (55) of said frame (47) and is made according to different shapes, topologies and sizes using tools that may be either traditional or specifically designed for this purpose. Method according to the preceding claims, io characterized in that said nose support element is formed by a special clamp (59) made of plastic material formed by a central body (60) which is made with a rectangular recess ( 61), which can be attached to said connecting part (62) and secured to this same part by means of a counter clamp (63), as well as by means of two lateral grips (64, 65) extending downwards from the central body (60) and are designed to accommodate each person's nose. 13. Eyeglasses comprising a frame formed of the first and second halves, a pair of lenses, screens, filters or the like, each individually inserted between said first and second halves of the frame, a pair of support rods, and at least one nose mount, attached to the same frame, 5, characterized in that they are made by the manufacturing process according to claims 1-12.