WO2022234510A1 - Bouton amovible - Google Patents

Bouton amovible Download PDF

Info

Publication number
WO2022234510A1
WO2022234510A1 PCT/IB2022/054164 IB2022054164W WO2022234510A1 WO 2022234510 A1 WO2022234510 A1 WO 2022234510A1 IB 2022054164 W IB2022054164 W IB 2022054164W WO 2022234510 A1 WO2022234510 A1 WO 2022234510A1
Authority
WO
WIPO (PCT)
Prior art keywords
button
stem
head
female
plastic body
Prior art date
Application number
PCT/IB2022/054164
Other languages
English (en)
Inventor
Carlo FAVARATO
Original Assignee
Spring ’85 S.p.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Spring ’85 S.p.A. filed Critical Spring ’85 S.p.A.
Priority to EP22726297.9A priority Critical patent/EP4346494A1/fr
Publication of WO2022234510A1 publication Critical patent/WO2022234510A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B1/00—Buttons
    • A44B1/18—Buttons adapted for special ways of fastening
    • A44B1/28—Buttons adapted for special ways of fastening with shank and counterpiece
    • A44B1/30—Screw-buttons
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41H—APPLIANCES OR METHODS FOR MAKING CLOTHES, e.g. FOR DRESS-MAKING OR FOR TAILORING, NOT OTHERWISE PROVIDED FOR
    • A41H37/00—Machines, appliances or methods for setting fastener-elements on garments
    • A41H37/10—Setting buttons
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B1/00—Buttons
    • A44B1/02—Buttons characterised by their material

Definitions

  • the present invention generally relates to buttons for garments mainly made of jeans fabric, and particularly relates to removable nail buttons.
  • Buttons have been used since prehistoric times to fix together the edges of a garment. Over time they have been declined in various shapes and structures to fulfill a range of needs as well as variable fashion trends.
  • buttons are also named “stem buttons” due to their characteristic mushroom-like shape, or simply “jeans buttons” as they find preferential, but not exclusive, application on garments made of jeans fabric.
  • the head to be inserted into the buttonhole made on a flap of fabric protrudes from a stem which is firmly fixed to the other flap of the fabric to be buttoned by means of a nail which is an integral part of the button.
  • a nail button of the known type generally consists of a male component, substantially having the shape of a nail provided with circular claws, and a female component comprising a head from which a cylindrical hollow stem protrudes.
  • the sharp tip of the male component punches the fabric and enters the axial hole where it is held by the claws. Since the nail undergoes an irreversible plastic deformation, the male and the female component are permanently joined and the button is firmly fixed to the garment.
  • this male component is commonly called a "threaded nail” even if the circular claws do not really form a thread in the form of a helix that is wrapped around a cylinder-shaped nail.
  • this component is properly named “Christmas tree rivet” and it is a permanent fastener characterized by circular claws along the length of the nail with an increasing radius starting from the tip of the nail.
  • this known type of "nail button” is not removable i.e. it cannot be removed without damaging the button or the garment.
  • the terms “thread” and “threaded” in the present invention shall refer strictly to a thread such as that of common self-tapping screws, and shall not refer to circular claws.
  • buttons that can be disassembled and removed from the garment, for example to prevent it from being damaged during machine washing especially if the button has a cap made of precious material such as rhodium or gold.
  • buttons of this type In a first example of buttons of this type ( Figure 2a) a screw-like male element is joined to a nut-like female element by means of a common screwdriver. Other examples of buttons of this type are also disclosed in the applications JP2004121576A and US3474504A.
  • buttons have two main drawbacks that have limited their application. First, they require the fabric to be pre-punched in the position where the removable button is intended to be fixed. Furthermore, their application requires different machinery and procedures than those normally available in standard clothes workshops. In particular, buttons must be fixed manually or by means of screwdrivers and cannot be fixed by means of a punching machine.
  • buttons of this kind are, for instance, disclosed in the utility model 202011901979091 "Button with separable head" in the name of RIRI INDUSTRIES Spa. Buttons like these have a structure that allows to separate only the cap from the body. Therefore, they are partially removable buttons as only the head, and not the entire button, can be removed from the garment. In turn, this feature determines a further significant limitation: a relevant environmental impact arises when the garment reaches end-of-life since it is difficult to remove all the parts of the button from the garment.
  • buttons are often subjected to heavy chemical treatments (e.g. galvanic treatments), which have a very high impact on the environment and thus motivate a proper disposal and recycling of buttons.
  • chemical treatments e.g. galvanic treatments
  • the present invention intends to overcome the existing disadvantages and drawbacks of the prior art by providing a removable button having an improved structure. Accordingly, it is a first object of the present invention to provide a removable button of the "nail” type that can be easily attached and removed from a garment, for example a garment made of jeans fabric.
  • this purpose includes a removable button which can be applied to a garment manually or by means of the same machines (e.g. a punching machine) used to fix traditional or "non-removable" nail buttons.
  • a second important object of the present invention is to provide a removable button of the "nail" type which, once applied to a garment, can be temporarily removed and attached again with ease when desired, for example before machine washing to protect valuable decorative caps of the button head.
  • a third important object of the present invention is to provide a removable button of the "nail" type which, once applied to a garment, can be definitively removed to reduce the environmental impact when the garment reaches end-of-life and its disposal as a waste is necessary.
  • a last object of the present invention is to provide a removable button of the "nail" type which can be produced in a simple and economical way by means of known technologies.
  • the inventive concept underlying the present invention consists in the combination of a specific structure for the male and female components, and the use of a standard punching machine to attach the button the fabric.
  • this combination leads to the formation of a stable thread in the female element which is produced by the male element when the button is fixed to the garment thanks to plastic adaptation mechanisms.
  • the removable button according to the present invention can be removed and fixed again to the garment any time the user wants, with the aid of a common screwdriver, till the garment reaches ends-of-life.
  • Figure 1 show a known type of "nail” button provided with circular claws and not with an authentic threading
  • Figure 2 illustrates known type of "nail” buttons, where (a) is a removable button that can be fixed to the garment only by a screwdriver, while (b) is a button that can only be partially disassembled and not completely removed;
  • Figure 3 illustrates a view along a longitudinal section of the button according to the preferred embodiment of the invention, where (a) shows the female element, while (b) is the exploded view of said female element showing (on the right) the conformation of the 'imprint of the plastic body;
  • Figure 4 is a longitudinal section of a button according to the preferred embodiment of the invention, before being attached to the fabric (in the middle), with the threaded male component (bottom) separated from the female component (top) before the internal thread is self-formed (for ease of visualization the threaded male component is not shown in section);
  • Figure 5 is a longitudinal section of a button according to the preferred embodiment of the invention.
  • (a) shows said button applied to a fabric interposed between the threaded male component and the female component, after the internal thread is self-formed when the button is attached to the fabric.
  • Evidence of the reliefs generated on the surface of the closure element as a result of this process is provided in (b);
  • - Figure 6 is a longitudinal section of a button according to the preferred embodiment of the invention, which schematically depicts the operations for removing the button from the fabric by means of a screwdriver (for viewing convenience, the thread of the male element is not shown in section);
  • Figure 7 illustrates a view along a longitudinal section of the button in a second preferred embodiment of the invention, where (a) is the female element, while (b) shows the exploded view of said female element;
  • Figure 8 is a longitudinal section of a button according to a second preferred embodiment of the invention.
  • the reference number (1) designates as a whole the removable button according to the preferred embodiment of the present invention.
  • the button (1) is composed of: a mushroom-shaped female element (10), comprising a head (11) from which a stem (12) protrudes; and a screw-shaped male element (20) comprising a head (21) from which a threaded element (22) having an external thread (221) protrudes.
  • a decorative cap (15) is applied (e.g. by gluing) on the head (11) of the female element (10).
  • the decorative cap (15) can be made of precious or delicate materials that can be accidentally removed or damaged during washing operation of the garment, especially by wash machine.
  • the button (1) is attached to a garment by interposing a substrate (T), preferably a fabric (T) between the female and male elements (10,20).
  • the stem (12) encloses a cavity (13), bounded at one end by a first opening (131), and by a closure element (132), which are positioned, respectively, on the head part (11) of the female element (10) and on the opposite side thereof.
  • a hole (133) is provided over the closure element (132), preferably placed in the center.
  • a mushroom-shaped plastic body (14) is inserted through said first opening (131).
  • Said plastic body (14) has a base element (141) having a stem (142) protruding thereof with an impression (144) at the end opposite of this base element (141).
  • a hole (143) directed along the direction of the stem, preferably a blind hole positioned in the center of the impression (144).
  • the female element (10) and the plastic body (14) are both single bodies made by injection molding.
  • the head (11), the stem (12), the cavity (13) and the plastic body (14) all have cylindrical or slightly conical symmetry shapes, wherein the cavity (13) and the holes (133,143) are coaxial to the stem (12).
  • the base element (141) and the head (11) preferably have conic-like shapes.
  • the stem (142) of the plastic body has a diameter slightly greater than that of the cavity (13) of the female element, while the base element (141 ) has a smaller diameter than that of the head (11).
  • these elements can have other geometries, for example they can have a prismatic shape. They can be also different in shape, for example the head (11), the stems (12,142) and the base element (141) may be prismatic in shape, while the cavity (13) cylindrical in shape.
  • the impression (144) of the plastic body (14) consists of 4 equal reliefs arranged at 90° from each other to form a cross.
  • the visible surface of the head (21) of the male element (20) has a recess (211) to allow engagement of a screwdriver to attach and remove the button (1) from the item of clothes as will be explained below.
  • Said recess (211) can have any shape, for example slotted, cross slot (Philips or pozidriv), torx, hexagonal (alien) or other types.
  • the female and male elements (10,20) can be made with any of the materials used to make traditional "nail” type buttons, such as steel, brass, Zn-AI-Mg alloy, copper, but also plastic materials such as technopolymers, or a combination thereof.
  • the stem (12) has to be much more rigid than the plastic body (14) for a reason that will be explained below.
  • it has proved to be suitable making the stem (12) of brass (with a wall thickness of about 0.3 mm) and the plastic body (14) of a standard techno-polymer available on the market that the expert in the field is in able to select according to needs.
  • the threaded element (22) widens the hole (133) of the closure element (132) and the blind hole (143) of the plastic body (14), and thus determines by plastic adaptation self-forming of an internal thread (145) on the inner surface of the enlarged hole (143) which engages the external thread (221) of the threaded element (22).
  • This feature is illustrated schematically in the enclosed Figure 5. The present inventor has verified that the button structure hereinabove described advantageously determines three unexpected technical effects.
  • the structure of the button (1) allows the formation of an internal thread (145) which engages the external thread (221) ensuring an excellent joint between the male and female elements (10,20) as well as with the fabric (T).
  • This effect is achieved on condition that the following selections are properly made: a material for the stem (12) having a much greater rigidity than that of the plastic body (14); a sufficiently sharp profile of the crests of the external thread (221); a suitable pitch of the thread of the threaded element (22) such as to allow the adaptation of the plastic body (14) within the cavity (13); dimensions of the stem (142) of the plastic body (14) slightly higher than those of the cavity (13), to allow complete filling of the cavity (13) with the plastic body (14) and the formation of a stable internal thread (145).
  • the second technical effect found by the inventor consists in an easier perforation of the fabric (T), with a limited snagging of the same.
  • This is the unexpected result of properly dimensioning the diameters of the threaded element (22) and the hole (133), as well as the thickness of the walls of the stem (12) of the female element (10) according to the features of the selected materials.
  • the dimensioning is carried out in such a way as to generate a mechanical interference between the threaded element (22) and the hole (133) which causes its edges to bend towards the inside of the cavity (13) and lead to the formation of folds (134) which favor a clean cut of the fibers of the fabric (T) and prevent they are dragged within the holes (133,143).
  • the last technical effect determined by the button structure (1) according to the present invention is related to the impression (144) obtained on one end of the stem (142), which during the button attaching operation (1) acts as a punch producing reliefs (135) on the surface of the closure element (132).
  • Said reliefs (135) for example symmetrical with respect to the hole (133), increase the seal performance between the fabric (T) and the female/male elements (10,20).
  • they also prevent both the rotation of the button and the fabric snagging, particularly when the button according to the invention is attached to lightweight fabrics. This is due to the particularly surface morphology of the closure element (132) which retains the textile fibers more effectively as the present inventor has experimentally found.
  • the diameter of the hole (133) must be chosen as small as possible, to avoid the fabric to be dragged into the holes (133,143), an effect that would not only hinder the removal of the button by means of the screwdriver but would produce a snag on the fabric during this operation, especially when the button is fixed to lightweight fabrics.
  • an excessively small diameter of the hole (133) would irreparably damage the external thread (221) of the threaded element (22) and would not lead to the generation of the internal thread (145).
  • the removable button structure according to the present invention has numerous advantages.
  • during the production step of the garment it is possible to apply said buttons using standard punching machines usually used to fix traditional non-removable "nail” buttons, and without the use of screwing machines.
  • the temporary removal of the button (1) can be done an arbitrary number of times, as it was experimentally found by the inventor.
  • the second embodiment of the button according to the present invention refers to a removable button structure of the "nail" type particularly suitable for being applied to previously perforated fabrics of any type, heavyweight or lightweight fabrics.
  • the removable button structure (1) is now characterized by the fact that the female element (10) does not have the closure element (132) and the hole (133) so that the cavity (13) is bounded at the ends by a first opening (131), placed on the head (11) side of the female element (10), and by a second opening (131') opposed to the first. Since the stem
  • the stem (142) protrudes from the opening (131') and exhibits the impression (144), which preferably takes the form of a cross with a through-hole (143) in the center.
  • This alternative button structure has the advantage of being cheaper than the previous one, and in addition it can be applied with a screwdriver on perforated fabrics as well as it can be applied by pressure, as in the previous form.
  • a removable button of the "nail” type having an improved structure has been disclosed.
  • the structure allows to both attach the button by means of traditional punching machines and at the same time the temporary and complete removal of the button from the garment according to the needs.
  • temporary removal is useful before garment washing to preserve delicate decorative elements of the button, whilst the definitive removal reduce the environmental impact of the garment when the button reaches end-of-life.
  • the technical effect produced by the structure of the removable button according to the present invention is related to the stable thread in the female element which is produced by the male element during fixing of the button to the garment (by means of standard punching machines), thanks to plastic adaptation mechanisms and an appropriate choice of materials.
  • the closure element of the stem of the female element has a central cavity to facilitate insertion of the threaded element, but this cavity may not be present and could be made directly from the tip of this threaded element when assembling the female element.
  • the fabric substrate can be replaced by a substrate made of different materials, both made of fibrous and non-fibrous materials, used in the clothing industry and not, such as leather, imitation leather, neoprene or other plastic materials, but also metal and wood.

Landscapes

  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
  • Massaging Devices (AREA)
  • Percussion Or Vibration Massage (AREA)

Abstract

La présente invention concerne un bouton du type « clou » qui est complètement amovible et peut être appliqué sur un vêtement au moyen de machines de poinçonnage standard contrairement aux boutons similaires d'un type connu. Ces éléments de caractérisation permettent le retrait temporaire du bouton pour préserver des éléments décoratifs délicats avant le lavage, ou le retrait définitif du bouton pour réduire l'effet sur l'environnement lorsque le vêtement atteint la fin de vie. Ce bouton peut être appliqué sur n'importe quel type de tissu, de préférence sur un tissu en jean.
PCT/IB2022/054164 2021-05-05 2022-05-05 Bouton amovible WO2022234510A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22726297.9A EP4346494A1 (fr) 2021-05-05 2022-05-05 Bouton amovible

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102021000011429A IT202100011429A1 (it) 2021-05-05 2021-05-05 Bottone rimuovibile
IT102021000011429 2021-05-05

Publications (1)

Publication Number Publication Date
WO2022234510A1 true WO2022234510A1 (fr) 2022-11-10

Family

ID=77627179

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2022/054164 WO2022234510A1 (fr) 2021-05-05 2022-05-05 Bouton amovible

Country Status (3)

Country Link
EP (1) EP4346494A1 (fr)
IT (1) IT202100011429A1 (fr)
WO (1) WO2022234510A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3474504A (en) * 1967-04-20 1969-10-28 Scru Fix Ltd Buttons
US5575043A (en) * 1994-08-05 1996-11-19 Candotti; Riccardo Button for clothing
JP2004121576A (ja) * 2002-10-03 2004-04-22 Morito Co Ltd ボタン
US20080289076A1 (en) * 2007-05-21 2008-11-27 Jason Millward Accessory and fastener therefore
CN104473385B (zh) * 2014-12-04 2016-09-14 张宏 钮扣
DE202019105566U1 (de) * 2018-10-18 2020-01-20 Ykk Metal Ve Plastik Ürünleri Sanayi Ve Ticaret Anonim Sirketi Knopfbaugruppe
US20210315325A1 (en) * 2020-04-08 2021-10-14 Ykk Corporation Button Assembled with Removable Screw and Method of Attaching Removable Screw

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3474504A (en) * 1967-04-20 1969-10-28 Scru Fix Ltd Buttons
US5575043A (en) * 1994-08-05 1996-11-19 Candotti; Riccardo Button for clothing
JP2004121576A (ja) * 2002-10-03 2004-04-22 Morito Co Ltd ボタン
US20080289076A1 (en) * 2007-05-21 2008-11-27 Jason Millward Accessory and fastener therefore
CN104473385B (zh) * 2014-12-04 2016-09-14 张宏 钮扣
DE202019105566U1 (de) * 2018-10-18 2020-01-20 Ykk Metal Ve Plastik Ürünleri Sanayi Ve Ticaret Anonim Sirketi Knopfbaugruppe
US20210315325A1 (en) * 2020-04-08 2021-10-14 Ykk Corporation Button Assembled with Removable Screw and Method of Attaching Removable Screw

Also Published As

Publication number Publication date
IT202100011429A1 (it) 2022-11-05
EP4346494A1 (fr) 2024-04-10

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