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Title:
TWO-ELEMENT BUTTON FOR GARMENTS, AND MOUNTING TOOL FOR SAID BUTTON
Document Type and Number:
WIPO Patent Application WO/2017/203411
Kind Code:
A1
Abstract:
The two-element button (1 ) includes a support element (2), joined to a first edge (L1 ) of a garment and removably coupled with an interchangeable element (3), adapted to form the main body of said button (1 ), which can be temporarily removed or replaced with another one having a different shape and/or colour. Said removable coupling includes: a threaded stem (4), integral with said support element (2); a partially threaded hole (5), made in the interchangeable element (3) and in which the threaded portion (5A) is shorter than said threaded stem (4), while the diameter of the cylindrical portion (5B) is smaller than that of the threaded stem (4), the latter being aimed at screwing in the threaded portion (5A) and being inserted with interference, with its end (4A) in said cylindrical portion (5B) of the hole (5), plastically deforming a small length thereof, sufficient to generate a friction force capable of resisting to the unscrewing of said threaded stem (4).

Inventors:
SASSOLI DE' BIANCHI, Marco (Via Luigi Carlo Farini 14, Bologna, 40124, IT)
Application Number:
IB2017/052995
Publication Date:
November 30, 2017
Filing Date:
May 22, 2017
Export Citation:
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Assignee:
BOTT-ON S.R.L. (Via Luigi Carlo Farini 14, Bologna, 40124, IT)
International Classes:
A44B1/30
Attorney, Agent or Firm:
RUZZU, Giammario (Via Gulli 5, San Lazzaro di Savena, 40068, IT)
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Claims:
CLAIMS

A two-element button for garments, of the type including: a support element (2), joined to a first edge (L) of one of said garments, and an interchangeable element (3) that forms the main body of said button (1 ), intended to be removably coupled with said support element (2) and to fit into a corresponding buttonhole formed in a second edge of the same garment in order to maintain said second edge superimposed and adhering to the first edge (L), with said two-element button (1 ) characterized by including:

a threaded stem (4), integral with said support element (2) and extending therefrom in a direction substantially perpendicular to said first edge (L); a partially threaded hole (5), made in said interchangeable element (3), including an outer, threaded portion (5A) and a consecutive inner, cylindrical portion (5B), and in which said threaded portion (5A) has a length (P2) shorter than the length (P1 ) of said threaded stem (4), while said cylindrical portion (5B) has a diameter smaller than the outside diameter of said threaded stem (4), the latter being intended to engage by screwing into said threaded portion (5A) and to be inserted with interference fit, with its end (4A), upon completion of the screwing, into said cylindrical portion (5B) of the hole (5), plastically deforming a small length of said cylindrical portion, sufficient to generate a friction force capable of counteracting the unscrewing of said threaded stem (4).

A two-element button in accordance with claim 1 , characterized in that said support element (2) is provided with a shaped head (2A), aimed at being engaged with a tool for screwing and unscrewing said threaded stem (4).

A two-element button in accordance with claim 2, characterized in that said shaped head (2A) has hexagonal shape, and in that said tool is a double open end spanner.

A two-element button in accordance with claim 2, characterized in that said shaped head (2A) is provided with a screwdriver-cut, and in that said tool is a flat blade screwdriver.

A two-element button in accordance with claim 2, characterized in that said shaped head (2A) is provided with a cross- screwdriver-cut, and in that said tool is a cross-head screwdriver. A tool, which can be associated to a support element (2) of a two-element button (1 ) as claimed in claims 1 to 5 to facilitate its assembling, said tool (20) being characterized in that it includes, at one end, a pointed tip (21 ), aimed at making a hole (F) in a first edge (L) of a garment, said hole (F) being aimed at receiving said threaded stem (4), with said tool (20) comprising, at the opposite end, a seat (22), in which said threaded stem (4) is housed, during the operations, with which said support element (2) is applied to said first edge (L) of the garment or is removed therefrom.

Description:
TWO-ELEMENT BUTTON FOR GARMENTS, AND MOUNTING TOOL FOR SAID BUTTON

TECHNICAL FIELD

The invention lies within the technical field of components for clothes and, in particular, it relates to a button of two elements, which can be removably coupled.

BACKGROUND ART

It is known that buttons are matched with various pieces of clothes following certain aesthetic canons, each of which is aimed at obtaining a particular harmony;for example, the button can be of a neutral colour or of the same colour as the garment, or yet of the same colour but with a different shadow, or of a contrasting colour and, in combination, it can be made of the same material as the garment or a different material, of any nature.

During the normal manufacturing of clothes, for example, outerwear, the match between the clothes and the respective buttons of traditional type cannot take into consideration the type of other pieces of clothes or accessories, which will be put on together each time; therefore, there is no possibility to make said buttons match with other pieces of clothes (or accessories) if not those on which the buttons are mounted, either from chromatic or material quality or another point of view.

In some cases, buttons can be made of delicate materials and could be damaged during the garment washing or, on the contrary, it could happen that the buttons damage the garment, for example, by undesired colour release.

It is easy to understand from what above how advantageous it could be to have easily removable buttons, either to substitute them with others of different appearance or to temporarily detach them from the respective garment, for example during washing.

TECHNICAL PROBLEM

An Italian Patent Application No. BO201 1 A000313 filed on

30/05/2012 is known, filed in the name of the same Inventor, which describes and protects an "Interchangeable button for garments", made of a fixed element, joined to the fabric of a garment, and a detachable part, removably associated to said fixed element.

The fixed element is joined with the detachable part by a snap joint, in which two protrusions of the fixed element are aimed at snap coupling with recesses provided in a cavity of the detachable part.

The connection and disconnection require a suitable pressure to obtain elastic deformations to engage or release the protrusions from the cavities.

The above mentioned solution has constructive problems related to the production of moulds and functional inefficiencies of the snap coupling means, for which a correct dimension relation can be hardly found in order to make handling easy and, at the same time, assure firm connection.

In addition, given the minimum dimensions of the parts, after some locking and unlocking operations, a considerable loss of grip and tightness is noticed due to the wear of the protrusions and/or cavities.

The same Applicant filed a Patent Application for Industrial Invention no. BO2013A000280 on 31/05/2013, entitled "Dismountable button for clothes", in which the snap locking means, which stably fasten the two parts of the button, have an original conformation and are aimed at being handled with a release tool.

In this way, the necessity to apply a pressure that causes a rapid wear is eliminated, thus allowing to couple the two elements in a stable way.

The release tool is easy to use and within anybody's reach, however the complex shape of the snap locking means and consequently of the moulds, has made it impossible to reach a sufficiently competitive production cost.

In order to overcome the limits of the previous solutions, mentioned above, the same Applicant has filed an Italian Patent Application for Industrial Invention No. 102015000032600, on 30/07/2015, entitled "Modular button for clothes", in which the coupling between the support element and the interchangeable one is a screw.

The support element has a threaded stem which engages a hole of the garment and is screwed in a threaded hole made in the interchangeable element.

Elastically deformable means, for example a ring of gum of a commercial self-locking nut housed in the interchangeable element, are provided for blocking the rotation, when the screwing is completed.

This technical solution has revealed a first drawback caused by the fact that the size of such a button cannot be too small, since it depends on the size of the self-locking nut.

Another drawback has arisen during the production step, due to the necessity to "embed" the nut in the interchangeable element, which complicates the apparatus, slows down the production and increases the costs. OBJECTS OF THE INVENTION

Therefore, it is an object of the present invention to propose a two-element button for garments configured in such a way as to overcome the drawbacks of the known solutions, in particular the mentioned ones, assuming their technical function, to supply a button, in which the aesthetically most important part can be easily detached from another part, which remains fixed, and as much easily put back on the latter assuring that the obtained joint is stable and strong in all normal stresses caused by the use of the button.

Another object of the invention is to obtain a button, whose interchangeable part can be locked to the fixed one fastened to the garment edge and that can be detached therefrom by means of a simple screw coupling. However, the button should bear means that assure final locking thereof and, at the same time, allow waiving the self-locking nut or equivalent solutions for defining elastically deformable areas.

A still further object of the invention is to propose a two-element button, in which said screw coupling assures the necessary final locking for at least a high number of mounting and dismounting operations.

A further object of the invention is to exploit the conformation of the support element to associate it to a tool which is particularly useful at the first mounting of the buttons onto the garment.

SUMMARY OF THE INVENTION

These and other objects are wholly obtained by a two-element button for garments, of the type comprising: a support element joined to a first edge of one of said garments and an interchangeable element of flattened shape, aimed at forming the main body of the button, intended to be removably coupled with said support element and to fit into a corresponding buttonhole formed in a second edge of the same garment in order to maintain said second edge superimposed and adhering to the first edge, with the above mentioned two-element button comprising: a threaded stem, integral with said support element and extending therefrom in a direction substantially perpendicular to said first edge; a partially threaded hole, made in said interchangeable element and in which the length of the outermost threaded part is smaller with respect to the threaded stem, while an inner cylindrical portion presents a smaller diameter with respect to the external diameter of the same threaded stem, the latter being intended to engage by screwing into said threaded portion and to have its end inserted with interference, upon completion of the screwing, into the above mentioned cylindrical portion of the hole, plastically deforming a small length thereof, sufficient to generate a friction force capable of counteracting the unscrewing of said threaded stem. BRIEF DESCRIPTION OF THE DRAWINGS

The characteristics of the invention will become evident from the following description of preferred embodiments of the proposed two- element button for garments, in accordance with the contents of claims and with the help of the enclosed drawings, in which:

- Fig. 1 is a perspective exploded view of the proposed button;

Fig. 2 illustrates a tool for applying the button of Fig. 1 ;

Fig. 3 partially illustrates the tool of Fig. 2 during an operation step; Fig. 4 is a section view of the button elements, separated from one another in order to point out a constructive characteristic;

- Fig. 5 is a view similar to Fig. 4 of the button elements, joined to one another;

Fig. 6 illustrates, in enlarged scale, the detail K of Fig. 5.

DESCRIPTION OF PREFERRED EMBODIMENTS OF THE INVENTION

In the above mentioned figures, the reference 1 indicates a button as a whole, obtained according to the present invention. For the sake of simplicity of the description and without losing the universality of the invention, an embodiment of the button 1 consisting of two elements will be taken into consideration hereinafter, according to what will be specified in detail below. However, it will be understood that the term "two elements" which will be used hereinafter, must be considered in a broad sense. Each of the two elements can be made mounting two or more components, if necessary, depending on the particular needs or ease, without departing from the scope of the invention.

The two-element button 1 can be used, in a known way, to keep close the edges of the garment of any type, not illustrated in detail.

The button 1 includes, in a known way, a support element 2, intended to be joined to a first edge L of one of the mentioned garments, and an interchangeable element 3 with a flattened shape, aimed at forming the main body of the button 1 , intended to be removably coupled with the mentioned support element 2 and to fit into a corresponding buttonhole made in a second edge (not shown) of the same garment in order to keep the second edge superimposed and adhering to the first edge L.

According to the invention, the support element 2 carries, integral thereto, a threaded stem 4, for example metallic, extending therefrom in a direction substantially perpendicular to said first edge L, to which it is joined, in a way known in itself, not shown in detail, as not relevant to the invention: for example, a self-blocking elastic crown washer (not shown), possibly made of a plastic material, is introduced at the base of the threaded stem 4, after the threaded stem 4 has been introduced into the hole of the first edge L.

The interchangeable element 3 is provided with a partially threaded hole 5, formed of an outer threaded part 5A, which has a length P2 smaller than the length P1 of the threaded stem 4, and an inner cylindrical portion 5B, not threaded, which has a diameter smaller that the external diameter of the threaded stem 4.

The latter is intended to engage by screwing into the mentioned threaded portion 5A and to have its end 4A inserted with interference, upon completion of the screwing, into the cylindrical portion 5B of the hole 5, plastically deforming a small length thereof, sufficient to generate a friction force capable of counteracting the unscrewing of the threaded stem 4 (Figures 5 and 6).

Repeated screwing and unscrewing of the threaded stem 4 require a gradual increase of threading in the cylindrical portion 5B, however, the increase of the length of the threaded part 5A remains in fact within 1 -1 ,5 mm even after tens of operations.

The support element 2 is provided with a shaped head 2A, intended to be engaged by a tool. The shaped head applies to the threaded stem 4 a twisting moment, which is sufficient to plastically deform the initial part of the cylindrical portion 5B of the hole 5, to create at least a portion of threading turn, like the action of a self-tapping screw.

In the figures enclosed herewith as examples, the shaped head

2A is provided with a cross cut, so that the mentioned tool can be a cross-head screwdriver (not shown).

In a first option, not shown, the shaped head 2A is hexagonal, so that the mentioned tool cam be a double open end spanner or the like.

In a second option, also not shown, the shaped head 2A is provided with a screwdriver-cut, so that the mentioned tool can be a flat blade screwdriver.

The proposed invention advantageously includes a tool 20, intended to be joined to said support element 2 when fastening it to the first edge L.

For this purpose, the tool 20 includes, at one end, a pointed tip 21 , aimed at making a hole F in the first edge L in which the threaded stem 4 is to be introduced; the tool 20 includes also, at the opposite end, a seat 22, in which the threaded stem (4) is housed.

The shaped head 2A of the support element 2 is situated outside with respect to the tool 20, at the rear part thereof, during boring of the edge L (see in particular Fig. 3) and can receive manual pressure for the boring.

Upon completion of the boring, the tool 20 is already out of the first edge L and can be moved away, while the threaded stem 4 is introduced into the just made hole F (Fig. 4).

Depending on the type of material of which the garment is made, it can be necessary to use the second tool 20 for a contrary operation, that is, the removal of the support element 2; in this case, the second tool 20 is advantageously provided with a protection (not shown) for the pointed tip 21 , for example made of a ball of a gummy material, in which the tip 21 can be fitted.

The peculiar characteristics of the proposed two-element button become evident from what has been said above, proposing again the interesting possibility of temporal removal or substitution of the interchangeable element, which represents the most important part of the button, from a functional as well as from an aesthetic point of view.

An advantageous aspect of the invention derives from the fact that the screw coupling system is obviously simple and already used in a previous patent, mentioned in the introductory note, yet the original technical solution of the threaded stem that goes beyond the threaded part of the hole to occupy even a small section of the cylindrical portion of the latter and to obtain thereby a friction blocking, has allowed to obtain those desired construction simplicity and low costs that the previous solutions lack.

The solution that includes the screw locking as described is guaranteed for a high number of mounting and dismounting operations, enough for the whole service life of the button.

It is pointed out how the substantially screw conformation of the support element allows to match the described pointed tool, which is particularly handy during the first mounting of the buttons to the garment.

It is particularly obvious that the interchangeable element of the proposed button can be realized in countless aesthetic versions corresponding to the known technical solutions.

Another advantageous aspect of the invention derives from the fact that the adopted constructive solutions allow to considerably reduce the production costs, since the necessary equipment is significantly simpler.

In any case, it is understood that what has been described above is illustrative and not limiting, therefore, possible variants of details, which could become necessary because of technical and/or functional reasons, are considered from now on within the same protective scope defined by the claims below. As a pure example, the interchangeable element 3 can be formed also by more parts which may be assembled, the support elements 2 can have different lengths, to be used in different "wear" conditions of the non-threaded portion of the interchangeable element, or there can be other constructive variants, not directly pertinent to the invention.