EP3021713A1 - Method of manufacturing a felt glide with rounded edges - Google Patents

Method of manufacturing a felt glide with rounded edges

Info

Publication number
EP3021713A1
EP3021713A1 EP14738540.5A EP14738540A EP3021713A1 EP 3021713 A1 EP3021713 A1 EP 3021713A1 EP 14738540 A EP14738540 A EP 14738540A EP 3021713 A1 EP3021713 A1 EP 3021713A1
Authority
EP
European Patent Office
Prior art keywords
face
felt
slider
adhesive
pads
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP14738540.5A
Other languages
German (de)
French (fr)
Inventor
Charles Gergonne
Bertrand Gergonne
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gergonne SAS
Original Assignee
Gergonne SAS
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 Gergonne SAS filed Critical Gergonne SAS
Publication of EP3021713A1 publication Critical patent/EP3021713A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B91/00—Feet for furniture in general
    • A47B91/06—Gliders or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00—Making preforms
    • B29B11/02—Making preforms by dividing preformed material, e.g. sheets, rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/52—Heating or cooling
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B91/00—Feet for furniture in general
    • A47B91/06—Gliders or the like
    • A47B2091/063—Gliders or the like self-adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
    • B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/44—Furniture or parts thereof

Definitions

  • the present invention relates to a method of manufacturing a slider for affixing to the underside of a relatively heavy object that can be moved such as a piece of furniture (particularly a chair, an armchair) or the like, for facilitating the movement of said object by dragging on a surface such as a floor.
  • sliding glides are already known which are distinguished from each other by their shape, the nature of their materials constituting on the one hand the base intended to be affixed to the furniture and on the other hand the sliding surface intended to be in contact with the ground.
  • slider pads consisting of a base of a plastic material or an elastomer (eg rubber) coated with a PTFE layer (abbreviation polytetrafluroethylene) on the face intended to be in contact with the ground.
  • a PTFE layer abbreviation polytetrafluroethylene
  • the PTFE layer is obtained by injection molding.
  • This fabric may be made of natural materials (wool, cellulose) and / or synthetic (for example plastic materials such as polypropylene, polyamide, polyethylene terephthalate or mixtures of these polymers).
  • slider pads are generally in the form of felt rings. Their manufacture is easy, by simply cutting in a material in the form of a plate or a roll of a felt material. Unlike slider pads with a rigid plastic base, these felt sliders are not noisy. Indeed, the felt attenuates the noise. In addition, they avoid scratching the ground.
  • a slider pad slightly different from the felt slider pads is to cover these felt pads with straight edges of a layer of PTFE.
  • a layer of PTFE has the combined advantages of the felt base (ie less noisy than a base of plastic material) and a good sliding surface thanks to the PTFE coating layer which increases the sliding of the furniture on the floor compared to a slider pad only made of felt.
  • this slider skate because of its straight edges, has the disadvantage of risking clinging to tile joints or any other roughness that may present a floor.
  • the slider pads made of felt, and where appropriate the slider glides felt with a PTFE sliding surface are not fully satisfactory, because they may cling to the asperities that can present the soil.
  • slider pads whose attachment means furniture is an adhesive
  • the manufacturing processes slider pads can be complex and inexpensive to implement.
  • the means for fixing the shoe to the furniture is a nail, it requires an additional step after cutting slider pads which is generally complex to perform.
  • the present invention proposes to overcome these drawbacks detailed above that are known slider pads currently on the market. Indeed, the present invention provides a method of continuous manufacture of a slider which is economical and easy to implement. In addition, the gliding pad thus obtained by this method has the advantages of not being able to cling to the asperities of the ground (for example at tile joints), and this with a quality slip and without causing noise.
  • the method of manufacturing a slider pad with rounded edges comprises the following steps.
  • At least one felt element which has: a first face covered with an adhesive, said adhesive being coated with a protective layer and a second face opposite to the first face;
  • a plurality of cutouts the shape of which is suitable for obtaining a plurality of slider pads which each have a first face covered with the adhesive coated with the layer, is made in the felt element. protective and a second face opposite to this first face;
  • the second face of each of the slider pads obtained in the cutting step is heat-pressed so as to make said second face of each of the slider pads convex.
  • the adhesive may be chosen from acrylic glues, rubber, silicone, polyurethane or any other equivalent adhesive known to those skilled in the art.
  • the protective layer may be chosen from silicone papers and silicone films.
  • Silicone films are plastic materials such as polypropylene, polyethylene or polyethylene terephthalate which have been coated with silicone.
  • the protective layer is a silicone film made of polyethylene terephthalate, since it has the advantages of having good mechanical strength and temperature. In addition, it is transparent, which is generally preferred by users from an aesthetic point of view.
  • the protective layer is removed to be able to glue on an object (for example a piece of furniture or the like) the first face of the slider which is provided with the adhesive.
  • the second face of the felt element is coated with a layer of a low friction material, preferably about 0.04.
  • This layer makes it possible to improve the sliding of the slider pad obtained according to the method of the invention.
  • this layer is bonded to the second face of the felt element.
  • this layer is made of a plastic material selected from the group consisting of polyethylene (preferably high molecular weight polyethylene), polypropylene, nylon, polytetrafluoroethylene (PTFE), polyoxymethylene and mixtures of those -this. Preferably, it is polytetrafluoroethylene (PTFE).
  • This layer improving the sliding of the slider pad has a thickness which represents a very small part of the total thickness of the slider pad according to the invention. The thickness may be between 30 ⁇ and 1 mm, preferably between 50 ⁇ and 600 ⁇ .
  • the slider obtained according to the method of the invention does not create noise problems when moving the object such as furniture, because it consists essentially of a felt material which is known for its absorbent properties. noise.
  • the slider pad obtained according to the method of the invention is made of felt and has a first face covered with an adhesive which constitutes the attachment means to the heavy object that can be moved (for example a piece of furniture such as chair or armchair) and a second face opposite to the first face which is intended to be in contact with the surface on which the furniture is moved.
  • this second face may be covered with a layer of a low friction material, preferably about 0.04, in order to improve sliding of the slider.
  • the felt element can be in various forms among which can be mentioned:
  • the roll preferably of a thickness of between 1 and 7 mm, preferably between 3 and 5 mm;
  • the plate advantageously of a thickness of between 1 and 7 mm, preferably between 3 and 5 mm.
  • the felt of which the slider pad is constituted can be chosen from the following materials:
  • plastic in particular from the following polymers: polypropylene, polyamide, polyethylene terephthalate or mixtures of these polymers.
  • the cuts are made appropriately according to the desired shape of the slider that is desired at the end of the process.
  • they are washers with a diameter of about 10 to 50 mm.
  • the hot pressing step is suitably carried out to round the edges of the second face of the slider pads, or in other words to make the second side of the slider pads convex.
  • This step is advantageously carried out at a temperature of between 130.degree. 200 ° C, for example with a metal tooling of aluminum or any other material which has a thermal conductivity suitable for rounding the edges of the slider pad.
  • the temperature may be adapted according to the felt used for the manufacture of slider pads. Of course, this adjustment of the pressing temperature is perfectly within the reach of the skilled person.
  • the hot pressing temperature can then be more higher than for a felt slider.
  • the temperature may be of the order of 200 ° C to 250 ° C; which will also have the advantage of reducing the duration of this hot pressing step. Temperature adjustment in this embodiment of the invention is also within the abilities of those skilled in the art.
  • the hot pressing step is carried out at a temperature which may be between 130 ° C. and 250 ° C.
  • the sliding pads have a second convex face prevents them from clinging to the tile joints or any other roughness of the floor when moving the object such as a piece of furniture. In other words, it improves the sliding of the slider pad, and this while limiting the forces applied to the felt during the passage of these asperities. Therefore, these rounded edges contribute to:
  • edge of the gliding pads is often the part of these pads that tends to clog up the most by collecting dust. Rounding the edges of the gliding pads by hot pressing also has the advantage of limiting the accumulation of dust on their edge.
  • the cutting and hot pressing steps are performed simultaneously in the same tool, for example in a tool having both cutting blades and concave surfaces made of a material having a suitable thermal conductivity (eg aluminum) for making cuts and rounding the edges of parts at high temperatures, ie up to temperatures of about 250 ° C.
  • a suitable thermal conductivity eg aluminum
  • total cuts are made, ie cut-outs throughout the thickness of the felt element.
  • the felt, the adhesive and the protective layer are cut simultaneously so as to obtain sliding pads in the form of unitary pieces.
  • so-called "half-flesh” cuts are made, ie cuts only in the thickness of the felt and the adhesive of the felt element. In other words, the protective layer is not cut.
  • the method according to the invention further comprises a stripping step, so as to remove the excess material from the felt element which is, remembered, provided on its first side of adhesive. A plurality of slider pads are thus obtained which are fixed by means of the adhesive on the protective layer.
  • the stripping step can be performed before or after the hot-pressing step.
  • a step of guillotining of the protective layer is carried out so as to obtain a plurality of protective layer plates on which the gliding pads are placed, namely a limited number of gliding pads. , for example a dozen slider pads.
  • the guillotining step is perfectly within the reach of the person skilled in the art. It is often performed according to commercial imperatives of presentation and storage of slider pads.
  • the guillotine can be realized:
  • the hot pressing step is carried out before the step during which the plurality of cuts is made.
  • the method of manufacturing slider pads according to the invention is simple to implement and very economical.
  • the method has the advantage of directly obtaining sliding pads arranged on protective layer plates that are ready to be shelved in the magazines, possibly after a final step of packaging. In other words, at the end of the process according to the invention, slip skids are obtained ready for marketing, without the need for additional steps (expensive and sometimes complex) of packaging this product.

Abstract

The invention relates to a method of manufacturing a glide with rounded edges, which comprises the following steps: taking at least one felt element which has: - a first face covered with an adhesive, said adhesive being coated with a protective layer, and - a second face the opposite face to the first face; a plurality of cuts are made in the felt element, the shape of the cuts being suited to yielding a plurality of glides each having a first face covered with the adhesive coated with the protective layer and a second face the opposite face to this first face; the second face of each of the glides obtained in the cutting step is hot pressed to make said second face of each of the glides convex.

Description

r  r
EN FEUTRE AVEC DES BORDS ARRONDIS  FELT WITH ROUNDED EDGES
1 1
La présente invention concerne un procédé de fabrication d'un patin glisseur destiné à être apposé sur la face inférieure d'un objet relativement pesant susceptible d'être déplacé tel qu'un meuble (en particulier une chaise, un fauteuil) ou analogue, pour faciliter le déplacement dudit objet en le faisant glisser sur une surface telle qu'un sol.  The present invention relates to a method of manufacturing a slider for affixing to the underside of a relatively heavy object that can be moved such as a piece of furniture (particularly a chair, an armchair) or the like, for facilitating the movement of said object by dragging on a surface such as a floor.
On connaît déjà différents modes de réalisation de patins glisseurs qui se distinguent entre eux par leur forme, la nature de leurs matériaux constituant d'une part la base destinée à être apposée sur le meuble et d'autre part la surface de glissement destinée à être en contact avec le sol.  Various embodiments of sliding glides are already known which are distinguished from each other by their shape, the nature of their materials constituting on the one hand the base intended to be affixed to the furniture and on the other hand the sliding surface intended to be in contact with the ground.
Par exemple, il existe des patins glisseurs constitués d'une base en une matière plastique ou un élastomère (par exemple caoutchouc) recouverte d'une couche en PTFE (abréviation de polytetrafluroéthylène) sur la face destinée à être en contact avec le sol. Généralement, la couche de PTFE est obtenue par surmoulage par injection. Ces patins glisseurs présentent l'intérêt d'avoir des bords arrondis qui leur permettent de mieux passer les joints de carrelage lorsqu'on déplace le meuble sur lequel ont été fixés ces patins. Cependant, ces patins glisseurs ont l'inconvénient d'être trop rigides, du fait de leur base en plastique ou en élastomère. Cela les rend bruyants. Par ailleurs, le procédé de fabrication de tels patins glisseurs est souvent compliqué et nécessite un outillage important, coûteux et complexe.  For example, there are slider pads consisting of a base of a plastic material or an elastomer (eg rubber) coated with a PTFE layer (abbreviation polytetrafluroethylene) on the face intended to be in contact with the ground. Generally, the PTFE layer is obtained by injection molding. These slider pads have the advantage of having rounded edges that allow them to better pass the tile joints when moving the furniture on which these pads have been fixed. However, these glides have the disadvantage of being too rigid, because of their plastic base or elastomer. It makes them noisy. Furthermore, the method of manufacturing such slider pads is often complicated and requires large tools, expensive and complex.
On connaît aussi des patins glisseurs à bords droits qui sont constitués de feutre.  There are also known sliders with straight edges which are made of felt.
A cet égard, dans le cadre de la présente invention, on entend par « feutre », une étoffe non tissée constituée de poils ou de fibres. Cette étoffe peut être constituée de matières naturelles (laine, cellulose) et/ou synthétiques (par exemple des matériaux plastiques tel que polypropylène, polyamide, poly- téréphtalate d'éthylène ou des mélanges de ces polymères).  In this regard, in the context of the present invention, the term "felt", a nonwoven fabric consisting of bristles or fibers. This fabric may be made of natural materials (wool, cellulose) and / or synthetic (for example plastic materials such as polypropylene, polyamide, polyethylene terephthalate or mixtures of these polymers).
Ces patins glisseurs se présentent généralement sous la forme de rondelles de feutre. Leur fabrication est aisée, par simple découpe dans un matériau se présentant sous la forme d'une plaque ou d'un rouleau d'un matériau en feutre. A la différence des patins glisseurs présentant une base rigide en plastique, ces patins glisseurs en feutre ne sont pas bruyants. En effet, le feutre atténue le bruit. De plus, ils évitent les rayures du sol.  These slider pads are generally in the form of felt rings. Their manufacture is easy, by simply cutting in a material in the form of a plate or a roll of a felt material. Unlike slider pads with a rigid plastic base, these felt sliders are not noisy. Indeed, the felt attenuates the noise. In addition, they avoid scratching the ground.
Aussi, un autre mode de réalisation de patin glisseur légèrement différent des patins glisseurs en feutre consiste à recouvrir ces patins en feutre à bords droits d'une couche de PTFE. Ainsi, un tel patin glisseur présente les avantages combinés de la base en feutre (à savoir moins bruyante qu'une base en un matériau plastique) et d'une bonne surface de glissement grâce à la couche de revêtement en PTFE qui accroît le glissement du meuble sur le sol par rapport à un patin glisseur uniquement constitué de feutre. Il n'en demeure pas moins que ce patin glisseur, du fait de ses bords droits, présente l'inconvénient de risquer de s'accrocher aux joints de carrelage ou à toute autre aspérité que peut présenter un sol. Also, another embodiment of a slider pad slightly different from the felt slider pads is to cover these felt pads with straight edges of a layer of PTFE. Thus, such a slider pad has the combined advantages of the felt base (ie less noisy than a base of plastic material) and a good sliding surface thanks to the PTFE coating layer which increases the sliding of the furniture on the floor compared to a slider pad only made of felt. Nevertheless, this slider skate, because of its straight edges, has the disadvantage of risking clinging to tile joints or any other roughness that may present a floor.
Ainsi, les patins glisseurs en feutre, et le cas échéant les patins glisseurs en feutre présentant une surface de glissement en PTFE ne sont pas pleinement satisfaisants, du fait qu'ils risquent de s'accrocher aux aspérités que peut présenter le sol.  Thus, the slider pads made of felt, and where appropriate the slider glides felt with a PTFE sliding surface are not fully satisfactory, because they may cling to the asperities that can present the soil.
Enfin, hormis pour les patins glisseurs dont le moyen de fixation au meuble est un adhésif, les procédés de fabrication des patins glisseurs peuvent s'avérer complexes et peu économiques à mettre en œuvre. Par exemple, lorsque le moyen de fixation du patin au meuble est un clou, cela nécessite une étape supplémentaire après la découpe des patins glisseurs qui est généralement complexe à effectuer.  Finally, except for slider pads whose attachment means furniture is an adhesive, the manufacturing processes slider pads can be complex and inexpensive to implement. For example, when the means for fixing the shoe to the furniture is a nail, it requires an additional step after cutting slider pads which is generally complex to perform.
La présente invention se propose de remédier à ces inconvénients détaillés ci-dessus que l'on connaît des patins glisseurs actuellement sur le marché. En effet, la présente invention fournit un procédé de fabrication en continu d'un patin glisseur qui est économique et parfaitement aisé de mise en œuvre. De plus, le patin glisseur ainsi obtenu par ce procédé présente les avantages de ne pas risquer de s'accrocher aux aspérités du sol (par exemple au niveau des joints de carrelage), et ce avec un glissement de qualité et sans causer de bruits.  The present invention proposes to overcome these drawbacks detailed above that are known slider pads currently on the market. Indeed, the present invention provides a method of continuous manufacture of a slider which is economical and easy to implement. In addition, the gliding pad thus obtained by this method has the advantages of not being able to cling to the asperities of the ground (for example at tile joints), and this with a quality slip and without causing noise.
Plus précisément, le procédé de fabrication d'un patin glisseur avec des bords arrondis selon l'invention comprend les étapes suivantes.  More specifically, the method of manufacturing a slider pad with rounded edges according to the invention comprises the following steps.
on dispose d'au moins un élément en feutre qui présente : une première face recouverte d'un adhésif, ledit adhésif étant revêtu d'une couche protectrice et une deuxième face opposée à la première face ;  at least one felt element is provided which has: a first face covered with an adhesive, said adhesive being coated with a protective layer and a second face opposite to the first face;
on effectue dans l'élément en feutre une pluralité de découpes dont la forme est appropriée pour obtenir une pluralité de patins glisseurs qui présentent chacun une première face recouverte de l'adhésif revêtu de la couche protectrice et une deuxième face opposée à cette première face ; a plurality of cutouts, the shape of which is suitable for obtaining a plurality of slider pads which each have a first face covered with the adhesive coated with the layer, is made in the felt element. protective and a second face opposite to this first face;
on presse à chaud la deuxième face de chacun des patins glisseurs obtenus à l'étape de découpes de manière à rendre convexe ladite deuxième face de chacun des patins glisseurs.  the second face of each of the slider pads obtained in the cutting step is heat-pressed so as to make said second face of each of the slider pads convex.
L'adhésif peut être choisi parmi les colles acryliques, caoutchouc, silicone, polyuréthane ou encore tout autre colle équivalente connue de l'homme du métier.  The adhesive may be chosen from acrylic glues, rubber, silicone, polyurethane or any other equivalent adhesive known to those skilled in the art.
La couche protectrice peut être choisie parmi les papiers siliconés, et les films siliconés. Les films siliconés sont des matériaux plastiques tels que le polypropylène, le polyéthylène ou le poly(téréphtalate d'éthylène) qui ont été revêtus de silicone.  The protective layer may be chosen from silicone papers and silicone films. Silicone films are plastic materials such as polypropylene, polyethylene or polyethylene terephthalate which have been coated with silicone.
De manière préférée, la couche protectrice est un film siliconé en poly(téréphtalate d'éthylène), car il présente les avantages d'avoir une bonne résistance mécanique et à la température. De plus, il est transparent, ce qui est généralement préféré par les utilisateurs d'un point de vue esthétique.  Preferably, the protective layer is a silicone film made of polyethylene terephthalate, since it has the advantages of having good mechanical strength and temperature. In addition, it is transparent, which is generally preferred by users from an aesthetic point of view.
Ainsi, au moment de son utilisation, la couche protectrice est retirée pour pouvoir coller sur un objet (par exemple un meuble ou analogue) la première face du patin glisseur qui est pourvue de l'adhésif.  Thus, at the time of its use, the protective layer is removed to be able to glue on an object (for example a piece of furniture or the like) the first face of the slider which is provided with the adhesive.
Bien entendu, le choix des matériaux de l'adhésif et de la couche protectrice sont parfaitement à la portée de l'homme du métier. Il s'agit des matériaux habituellement utilisés pour la fabrication de patins glisseurs en feutre dont le moyen de fixation sur l'objet susceptible d'être déplacé consiste en un adhésif.  Of course, the choice of materials of the adhesive and the protective layer are perfectly within the reach of the skilled person. These materials are usually used for the manufacture of slider glides felt whose attachment means on the object can be moved is an adhesive.
Dans un mode de réalisation préféré de l'invention, la deuxième face de l'élément en feutre est revêtue d'une couche d'un matériau de faible coefficient de frottement, de préférence d'environ 0,04. Cette couche permet d'améliorer le glissement du patin glisseur obtenu selon le procédé de l'invention. De manière avantageuse, cette couche est collée sur la deuxième face de l'élément en feutre.  In a preferred embodiment of the invention, the second face of the felt element is coated with a layer of a low friction material, preferably about 0.04. This layer makes it possible to improve the sliding of the slider pad obtained according to the method of the invention. Advantageously, this layer is bonded to the second face of the felt element.
De manière avantageuse, cette couche est réalisée en un matériau plastique choisi dans le groupe constitué par le polyéthylène (de préférence le polyéthylène à haut poids moléculaire), le polypropylène, le nylon, le polytetrafluoroéthylène (PTFE), les polyoxymethylène et des mélanges de ceux-ci. De manière préférée, il s'agit du polytetrafluoroéthylène (PTFE). Cette couche améliorant le glissement du patin glisseur a une épaisseur qui représente une très faible partie de l'épaisseur totale du patin glisseur selon l'invention. L'épaisseur peut être comprise entre 30 μιτι et 1 mm, de préférence entre 50 μιτι et 600 μιτι. Advantageously, this layer is made of a plastic material selected from the group consisting of polyethylene (preferably high molecular weight polyethylene), polypropylene, nylon, polytetrafluoroethylene (PTFE), polyoxymethylene and mixtures of those -this. Preferably, it is polytetrafluoroethylene (PTFE). This layer improving the sliding of the slider pad has a thickness which represents a very small part of the total thickness of the slider pad according to the invention. The thickness may be between 30 μιτι and 1 mm, preferably between 50 μιτι and 600 μιτι.
Ainsi, le patin glisseur obtenu selon le procédé de l'invention ne crée pas des problèmes de bruits lorsqu'on déplace l'objet tel que meuble, car il est essentiellement constitué d'un matériau en feutre qui est connu pour ses propriétés absorbantes du bruit.  Thus, the slider obtained according to the method of the invention does not create noise problems when moving the object such as furniture, because it consists essentially of a felt material which is known for its absorbent properties. noise.
Ainsi, le patin glisseur obtenu selon le procédé de l'invention est réalisé en feutre et présente une première face recouverte d'un adhésif qui constitue le moyen de fixation à l'objet pesant susceptible d'être déplacé (par exemple un meuble tel que chaise ou fauteuil) et une deuxième face opposée à la première face qui est destinée à être en contact avec la surface sur laquelle est déplacé le meuble. Optionnellement, cette deuxième face peut être recouverte d'une couche d'un matériau de faible coefficient de frottement, de préférence d'environ 0,04, afin d'améliorer le glissement du patin glisseur.  Thus, the slider pad obtained according to the method of the invention is made of felt and has a first face covered with an adhesive which constitutes the attachment means to the heavy object that can be moved (for example a piece of furniture such as chair or armchair) and a second face opposite to the first face which is intended to be in contact with the surface on which the furniture is moved. Optionally, this second face may be covered with a layer of a low friction material, preferably about 0.04, in order to improve sliding of the slider.
L'élément en feutre peut se présenter sous différentes formes parmi lesquelles on peut citer :  The felt element can be in various forms among which can be mentioned:
le rouleau, avantageusement d'une épaisseur comprise entre 1 et 7 mm, de préférence entre 3 et 5 mm ;  the roll, preferably of a thickness of between 1 and 7 mm, preferably between 3 and 5 mm;
la plaque, avantageusement d'une épaisseur comprise entre 1 et 7 mm, de préférence entre 3 et 5 mm.  the plate, advantageously of a thickness of between 1 and 7 mm, preferably between 3 and 5 mm.
Dans le cadre de la présente invention, le feutre dont est constitué le patin glisseur peut être choisi parmi les matériaux suivants :  In the context of the present invention, the felt of which the slider pad is constituted can be chosen from the following materials:
- la laine,  - wool,
la cellulose,  cellulose,
le plastique, en particulier parmi les polymères suivants : polypropylène, polyamide, poly-téréphtalate d'éthylène ou des mélanges de ces polymères.  plastic, in particular from the following polymers: polypropylene, polyamide, polyethylene terephthalate or mixtures of these polymers.
Les découpes sont réalisées de manière appropriée selon la forme souhaitée du patin glisseur que l'on souhaite obtenir à l'issue du procédé. De manière préférée, il s'agit de rondelles, de diamètre de l'ordre de 10 à 50 mm.  The cuts are made appropriately according to the desired shape of the slider that is desired at the end of the process. Preferably, they are washers with a diameter of about 10 to 50 mm.
L'étape de pressage à chaud est réalisée de manière appropriée pour arrondir les bords de la deuxième face des patins glisseurs, ou autrement dit de rendre convexe cette deuxième face des patins glisseurs. Cette étape est avantageusement réalisée à une température comprise entre 130°C et 200°C, par exemple avec un outillage métallique en aluminium ou tout autre matériau qui présente une conductivité thermique appropriée pour arrondir les bords du patin glisseur. La température pourra être adaptée en fonction du feutre utilisé pour la fabrication des patins glisseurs. Bien entendu, cet ajustement de la température de pressage est parfaitement à la portée de l'homme du métier. The hot pressing step is suitably carried out to round the edges of the second face of the slider pads, or in other words to make the second side of the slider pads convex. This step is advantageously carried out at a temperature of between 130.degree. 200 ° C, for example with a metal tooling of aluminum or any other material which has a thermal conductivity suitable for rounding the edges of the slider pad. The temperature may be adapted according to the felt used for the manufacture of slider pads. Of course, this adjustment of the pressing temperature is perfectly within the reach of the skilled person.
Lorsque la deuxième face de l'élément en feutre est revêtue d'une couche d'un matériau de faible coefficient de frottement, de préférence d'environ 0,04, par exemple du PTFE, la température de pressage à chaud pourra alors être plus élevée que pour un patin glisseur en feutre. La température pourra être de l'ordre de 200°C à 250°C ; ce qui présentera l'avantage aussi de réduire la durée de cette étape de pressage à chaud. L'ajustement de la température, dans ce mode de réalisation de l'invention, est aussi à la portée de l'homme du métier.  When the second face of the felt element is coated with a layer of a material of low coefficient of friction, preferably about 0.04, for example PTFE, the hot pressing temperature can then be more higher than for a felt slider. The temperature may be of the order of 200 ° C to 250 ° C; which will also have the advantage of reducing the duration of this hot pressing step. Temperature adjustment in this embodiment of the invention is also within the abilities of those skilled in the art.
Ainsi, dans le cadre de la présente invention, l'étape de pressage à chaud est réalisée à une température pouvant être comprise entre 130°C et 250°C.  Thus, in the context of the present invention, the hot pressing step is carried out at a temperature which may be between 130 ° C. and 250 ° C.
Le fait que les patins glisseurs présentent une deuxième face convexe évite qu'ils ne s'accrochent sur les joints de carrelage ou toute autre aspérité du sol lorsqu'on déplace l'objet tel qu'un meuble. En d'autres termes, cela améliore la glisse du patin glisseur, et ce tout en limitant les efforts appliqués sur le feutre lors du passage de ces aspérités. Par conséquent, ces bords arrondis contribuent à :  The fact that the sliding pads have a second convex face prevents them from clinging to the tile joints or any other roughness of the floor when moving the object such as a piece of furniture. In other words, it improves the sliding of the slider pad, and this while limiting the forces applied to the felt during the passage of these asperities. Therefore, these rounded edges contribute to:
augmenter la durée d'utilisation des patins glisseurs qui ne sont pas détériorés en s'accrochant aux joints de carrelages, et aussi  increase the service life of slider pads that are not deteriorated by clinging to tile joints, and also
éviter que les patins glisseurs ne se décollent de l'objet sur lequel ils ont été collés (par exemple une chaise ou un fauteuil).  prevent the gliding pads from becoming detached from the object to which they have been glued (for example a chair or an armchair).
Enfin, la tranche des patins glisseurs est souvent la partie de ces patins qui a tendance à s'encrasser le plus en ramassant les poussières. Le fait d'arrondir les bords des patins glisseurs par pressage à chaud présente aussi l'avantage de limiter les accumulations de poussière sur leur tranche.  Finally, the edge of the gliding pads is often the part of these pads that tends to clog up the most by collecting dust. Rounding the edges of the gliding pads by hot pressing also has the advantage of limiting the accumulation of dust on their edge.
Dans un mode de réalisation de l'invention, les étapes de découpes et de pressage à chaud sont réalisées simultanément dans un même outillage, par exemple dans un outillage présentant à la fois des lames de découpes et des surfaces concaves réalisées dans un matériau présentant une conductivité thermique appropriée (par exemple l'aluminium) pour effectuer des découpes et arrondir les bords de pièces, et ce à hautes températures, à savoir jusqu'à des températures d'environ 250°C. In one embodiment of the invention, the cutting and hot pressing steps are performed simultaneously in the same tool, for example in a tool having both cutting blades and concave surfaces made of a material having a suitable thermal conductivity (eg aluminum) for making cuts and rounding the edges of parts at high temperatures, ie up to temperatures of about 250 ° C.
Dans un mode de réalisation de l'invention, on effectue des découpes dites « totales », à savoir des découpes dans toute l'épaisseur de l'élément en feutre. Autrement dit, le feutre, l'adhésif et la couche protectrice sont découpés simultanément de manière à obtenir des patins glisseurs sous la forme de pièces unitaires.  In one embodiment of the invention, so-called "total" cuts are made, ie cut-outs throughout the thickness of the felt element. In other words, the felt, the adhesive and the protective layer are cut simultaneously so as to obtain sliding pads in the form of unitary pieces.
Dans un autre mode de réalisation préféré de l'invention, on effectue des découpes dites « à mi-chair », à savoir des découpes uniquement dans l'épaisseur du feutre et de l'adhésif de l'élément en feutre. Autrement dit, la couche protectrice n'est pas découpée.  In another preferred embodiment of the invention, so-called "half-flesh" cuts are made, ie cuts only in the thickness of the felt and the adhesive of the felt element. In other words, the protective layer is not cut.
Lorsqu'on effectue des découpes à mi-chair, le procédé selon l'invention comprend en outre une étape d'échenillage, de manière à retirer le surplus de matière de l'élément en feutre qui est, rappelons-le, pourvu sur sa première face d'adhésif. On obtient ainsi une pluralité de patins glisseurs qui sont fixés au moyen de l'adhésif sur la couche protectrice.  When making cuts at half-flesh, the method according to the invention further comprises a stripping step, so as to remove the excess material from the felt element which is, remembered, provided on its first side of adhesive. A plurality of slider pads are thus obtained which are fixed by means of the adhesive on the protective layer.
L'étape d'échenillage peut être réalisée avant ou après l'étape de pressage à chaud.  The stripping step can be performed before or after the hot-pressing step.
Avantageusement, lorsqu'on effectue des découpes à mi-chair, on réalise une étape de guillotinage de la couche protectrice de manière à obtenir une pluralité de plaques de couche protectrice sur lesquelles sont disposés les patins glisseurs, à savoir un nombre limité de patins glisseurs, par exemple une dizaine de patins glisseurs. L'étape de guillotinage est parfaitement à la portée de l'homme du métier. Elle est souvent réalisée en fonction d'impératifs commerciaux de présentation et de stockage des patins glisseurs.  Advantageously, when making half-flesh cuts, a step of guillotining of the protective layer is carried out so as to obtain a plurality of protective layer plates on which the gliding pads are placed, namely a limited number of gliding pads. , for example a dozen slider pads. The guillotining step is perfectly within the reach of the person skilled in the art. It is often performed according to commercial imperatives of presentation and storage of slider pads.
Le guillotinage peut être réalisé :  The guillotine can be realized:
après l'échenillage et avant l'étape de pressage à chaud, ou - après l'échenillage, lorsque l'échenillage a été réalisé consécutivement à l'étape de pressage à chaud, ou après le pressage à chaud qui a été réalisé consécutivement à l'échenillage.  after weeding and before the hot pressing step, or - after weeding, when the weeding has been carried out following the hot-pressing step, or after the hot-pressing which has been carried out consecutively to weeding.
Dans un mode de réalisation du procédé selon l'invention, on effectue l'étape de pressage à chaud avant l'étape au cours de laquelle on réalise la pluralité de découpes. Le procédé de fabrication de patins glisseurs selon l'invention est simple à mettre en œuvre et très économique. De plus, dans un de ses modes de réalisation, le procédé présente l'avantage d'obtenir directement des patins glisseurs disposés sur des plaques de couche protectrice qui sont prêtes à être mises en rayonnages dans les magasins, éventuellement après une ultime étape d'emballage. Autrement dit, on obtient à l'issue du procédé selon l'invention, des patins glisseurs prêts pour leur commercialisation, sans la nécessité d'étapes supplémentaires (coûteuses et parfois complexes) de mise en conditionnement de ce produit. In one embodiment of the method according to the invention, the hot pressing step is carried out before the step during which the plurality of cuts is made. The method of manufacturing slider pads according to the invention is simple to implement and very economical. In addition, in one of its embodiments, the method has the advantage of directly obtaining sliding pads arranged on protective layer plates that are ready to be shelved in the magazines, possibly after a final step of packaging. In other words, at the end of the process according to the invention, slip skids are obtained ready for marketing, without the need for additional steps (expensive and sometimes complex) of packaging this product.

Claims

REVENDICATIONS
1 . Procédé de fabrication d'un patin glisseur avec des bords arrondis qui comprend les étapes suivantes. 1. A method of manufacturing a slider pad with rounded edges that includes the following steps.
on dispose d'au moins un élément en feutre qui présente :  there is at least one felt element which has:
- une première face recouverte d'un adhésif, ledit adhésif étant revêtu d'une couche protectrice et a first face covered with an adhesive, said adhesive being coated with a protective layer and
- une deuxième face opposée à la première face ; on effectue dans l'élément en feutre une pluralité de découpes dont la forme est appropriée pour obtenir une pluralité de patins glisseurs qui présentent chacun une première face recouverte de l'adhésif revêtu de la couche protectrice et une deuxième face opposée à cette première face ; a second face opposite to the first face; a plurality of cutouts is formed in the felt member, the shape of which is suitable to obtain a plurality of slider pads which each have a first face covered with the adhesive coated with the protective layer and a second face opposite the first face;
on presse à chaud la deuxième face de chacun des patins glisseurs obtenus à l'étape de découpes de manière à rendre convexe ladite deuxième face de chacun des patins glisseurs.  the second face of each of the slider pads obtained in the cutting step is heat-pressed so as to make said second face of each of the slider pads convex.
2. Procédé de fabrication selon la revendication 1 , caractérisé en ce que la deuxième face de l'élément en feutre est revêtue d'une couche d'un matériau de faible coefficient de frottement d'environ 0,04. 2. Manufacturing method according to claim 1, characterized in that the second face of the felt element is coated with a layer of a low friction material of about 0.04.
3. Procédé de fabrication selon la revendication 2, caractérisé en ce que le matériau de faible coefficient de frottement est du polytetrafluoroéthylène. 3. The manufacturing method according to claim 2, characterized in that the low friction material is polytetrafluoroethylene.
4. Procédé de fabrication selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'étape de pressage à chaud est réalisée à une température comprise entre 130°C et 250°C. 4. Manufacturing process according to any one of claims 1 to 3, characterized in that the hot pressing step is carried out at a temperature between 130 ° C and 250 ° C.
5. Procédé de fabrication selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les étapes de découpes et de pressage à chaud sont réalisées simultanément. 5. Manufacturing process according to any one of claims 1 to 4, characterized in that the steps of cutting and hot pressing are performed simultaneously.
6. Procédé de fabrication selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'on effectue des découpes dans toute l'épaisseur de l'élément en feutre. 6. Manufacturing process according to any one of claims 1 to 5, characterized in that cuts are made throughout the thickness of the felt element.
7. Procédé de fabrication selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'on effectue des découpes uniquement dans l'épaisseur du feutre et de l'adhésif de l'élément en feutre et que le procédé comprend en outre une étape d'échenillage réalisée avant ou après l'étape de pressage à chaud. 7. Manufacturing process according to any one of claims 1 to 5, characterized in that cuts are made only in the thickness of the felt and the adhesive of the felt element and that the method further comprises a stripping step performed before or after the hot pressing step.
8. Procédé de fabrication selon la revendication 7, caractérisé en ce qu'on réalise une étape de guillotinage de la couche protectrice de manière à obtenir une pluralité de plaques de couche protectrice sur lesquelles sont disposés les patins glisseurs. 8. Manufacturing process according to claim 7, characterized in that a guillotining step of the protective layer is performed so as to obtain a plurality of protective layer plates on which the sliding pads are arranged.
9. Procédé de fabrication selon la revendication 8, caractérisé en ce que le guillotinage est réalisé : 9. Manufacturing process according to claim 8, characterized in that the guillotine is produced:
après l'échenillage et avant l'étape de pressage à chaud, ou après l'échenillage, lorsque l'échenillage a été réalisé consécutivement à l'étape de pressage à chaud, ou après le pressage à chaud qui a été réalisé consécutivement à l'échenillage.  after weeding and before the hot pressing step, or after weeding, when the weeding has been carried out following the hot-pressing step, or after the hot pressing which has been carried out consecutively to 'weeding.
EP14738540.5A 2013-07-18 2014-05-21 Method of manufacturing a felt glide with rounded edges Withdrawn EP3021713A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1357055A FR3008594B1 (en) 2013-07-18 2013-07-18 METHOD FOR MANUFACTURING A FELT SLIDING SKATE WITH ROUNDED EDGES
PCT/FR2014/051187 WO2015007965A1 (en) 2013-07-18 2014-05-21 Method of manufacturing a felt glide with rounded edges

Publications (1)

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EP3021713A1 true EP3021713A1 (en) 2016-05-25

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US (1) US20160157608A1 (en)
EP (1) EP3021713A1 (en)
FR (1) FR3008594B1 (en)
WO (1) WO2015007965A1 (en)

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Publication number Priority date Publication date Assignee Title
US10231542B2 (en) 2016-12-14 2019-03-19 Waxman Consumer Products Group Inc. Domed felt furniture slider
TW201934327A (en) * 2018-02-05 2019-09-01 美商3M新設資產公司 Multilayer, restorable protective furniture pads

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JPH072375B2 (en) * 1989-03-22 1995-01-18 池田物産株式会社 Interior material manufacturing method
US5220705A (en) * 1991-08-09 1993-06-22 Bushey Richard D Furniture floor glide
FR2763816B1 (en) * 1997-05-29 2001-02-02 Nicolas Reynaud ELASTOMERIC / FELT SKATE FOR FURNITURE AND LOADS
US20080280102A1 (en) * 2003-09-02 2008-11-13 Marcel Brouard Shear and water resistant felt pad
FR2868673B1 (en) * 2004-04-08 2006-12-15 Rocco Palazzolo PROTECTIVE WAIST TO BE FIXED UNDER FURNITURE FEET
CA2508645A1 (en) * 2004-06-01 2005-12-01 Soleno Inc. Textile glide provided with low friction material

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US20160157608A1 (en) 2016-06-09
WO2015007965A1 (en) 2015-01-22
FR3008594A1 (en) 2015-01-23
FR3008594B1 (en) 2015-08-14

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