EP2954957B1 - Protective device and method implementing such a device - Google Patents
Protective device and method implementing such a device Download PDFInfo
- Publication number
- EP2954957B1 EP2954957B1 EP15162681.9A EP15162681A EP2954957B1 EP 2954957 B1 EP2954957 B1 EP 2954957B1 EP 15162681 A EP15162681 A EP 15162681A EP 2954957 B1 EP2954957 B1 EP 2954957B1
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- EP
- European Patent Office
- Prior art keywords
- protected
- sub
- protection device
- elements
- surface treatment
- 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.)
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Links
- 238000000034 method Methods 0.000 title claims description 12
- 230000001681 protective effect Effects 0.000 title description 9
- 238000004381 surface treatment Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000003973 paint Substances 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 claims description 2
- 238000004078 waterproofing Methods 0.000 claims 2
- 208000031968 Cadaver Diseases 0.000 description 10
- 238000001465 metallisation Methods 0.000 description 8
- 230000001464 adherent effect Effects 0.000 description 4
- 239000013536 elastomeric material Substances 0.000 description 4
- 239000002390 adhesive tape Substances 0.000 description 3
- 238000005304 joining Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
- 229910000583 Nd alloy Inorganic materials 0.000 description 1
- 241001080024 Telles Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 235000010603 pastilles Nutrition 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/16—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
- B05B12/20—Masking elements, i.e. elements defining uncoated areas on an object to be coated
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/02—Electroplating of selected surface areas
- C25D5/022—Electroplating of selected surface areas using masking means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0207—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the work being an elongated body, e.g. wire or pipe
- B05B13/0214—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the work being an elongated body, e.g. wire or pipe the liquid or other fluent material being applied to the whole periphery of the cross section of the elongated body
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C3/00—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
Definitions
- the present invention relates to the field of surface treatment and more particularly that of the protection and masking of elements during the application of a surface treatment.
- a surface treatment When applying a surface treatment to a workpiece such as sanding, painting or metallizing, there are generally parts of the workpiece that are desirable to preserve from processing . They may be threaded or threaded elements, machined surfaces such as piston rods, or parts of the part having received or to receive a surface treatment different from that which is applied. Conventionally such parts of the room are protected by covers made of cardboard plates held with high performance adhesive tape on the portion to be protected, or flexible lead plates for operations such as sanding or metallization.
- An object of the invention is to reduce the risk of degradation of the workpiece during such operations.
- a device for protecting a part of the part to be protected according to claim 1 is provided.
- the device provides a protection whose installation and removal are facilitated by the separable character thereof. Maintaining the protection device on the workpiece with a surface opposing the relative sliding of the device and the part of the part to be protected eliminates the use of cutting tools and the risk of damage to the workpiece resulting in it.
- the separable body of the device is of cylindrical shape and the means for holding the sub-elements relative to one another in relation to each other comprise at least one magnetic element.
- At least one of the magnetic elements is a permanent magnet carried by one of the sub-elements. separable body, this permanent magnet is arranged to cooperate with another magnetic element which is carried by another sub-elements to maintain in position these two sub-elements relative to each other.
- the surface opposing the relative sliding of the device and the part to be protected comprises a material having a dry adhesion factor on steel which is greater than 0.6, this material being preferably rubber.
- the separable body is covered with silica at its outer periphery, which facilitates cleaning in order to prolong its reuse.
- the separable body is a right circular cylindrical sleeve separable into a first and a second half sleeve in a plane passing through a longitudinal axis of the sleeve and which defines joining surfaces of the first and second half sleeves, these joining surfaces. are of complementary shape to each other so as to limit the passage of material between the inside and outside of the sleeve when these half sleeves are joined.
- the junction surfaces of the first half-sleeve comprises at least one element exerting a magnetic attraction on a corresponding element of the second half-sleeve.
- the invention also comprises a method for treating a surface of a workpiece according to claim 9.
- a method for treating a surface of a workpiece according to claim 9.
- you spare a room with a tape you can leave glue on the piece or when cutting the tape, you can scratch the room and compromise its quality.
- the step of performing the surface treatment operation on the part it implements a step of removing the protection device.
- the surface treatment operation is an operation consisting in producing a coating on a surface of the part which is at least partially delimited at its periphery by the protection device.
- the coating is a paint or a metal deposit.
- watertightness it is meant that the watertight protected surface must be able to be immersed with the protective device put in place under at least 1 meter of water at 20 ° C without the surface thus protected is not wet.
- This seal is achieved via a seal placed around the surfaces opposing sliding and / or via a close contact of these surfaces opposing sliding against the protected surface.
- This sealing is favored by the use of the means for holding in position relative sub-elements relatively to each other which are preferably arranged to force the support of said seals and / or said surfaces opposing sliding against the workpiece.
- the protective device generally designated 1
- This comprises a concentric longitudinal cylindrical cavity 3 of the right circular cylindrical shape and an outer covering in silica.
- the silica makes it possible to limit the paint catch on the sleeve and thus makes it easier to clean the sleeve.
- the sleeve 2 is separable into two sub-elements in the form of a first half-sleeve 4 and a second half-sleeve 5 along a plane P passing through the longitudinal axis X.
- the plane P then defines rectangular surfaces.
- junction 4.1 and 4.2 of the first half sleeve 4 cooperating with corresponding junction surfaces 5.1 and 5.2 of the second half sleeve 5.
- the joining surfaces 4.1 and 4.2 extend parallel to the longitudinal axis X on either side of a first portion 6 of the cavity 3 corresponding to the cavity of the part 23 of the part 20 to be protected in each half sleeves 4, 5.
- the half sleeve 5 comprises a second cavity portion 7 bordered by the junction surfaces 5.1 and 5.2.
- the junction surfaces 4.1 and 4.2 respectively comprise two parallelepiped inserts, 4.11, 4.12, 4.21 and 4.22 extending parallel to the longitudinal axis X and made of magnetic material, here a neodymium alloy forming a permanent magnet.
- the half sleeve 5 comprises metal inserts 5.11, 5.12, 5.21 and 5.22 intended to cooperate with the inserts 4.11, 4.12, 4.21 and 4.22 of the half sleeve 4.
- some of the inserts forming magnets and some of the metal inserts attached to the half sleeves 4, 5 are arranged at the longitudinal ends of the sleeve 2 so as to prevent spacing of the half sleeves 4, 5 relative to each other at the longitudinal ends of the sleeve 2.
- these inserts forming magnets and / or some of the metal inserts may be covered with a thin film to limit the risk of degradation of these inserts (eg risk of oxidation) and to limit the risk of damaging the protected part by contact with these inserts.
- the implementation of the protection device 1 is now described with reference to Figures 4a, 4b, 4c, 4d in application to the surface treatment of a workpiece, here a landing gear rod 20 for aircraft.
- the landing gear rod 20 is made of metal and comprises a first portion 21 to receive a surface treatment - here a metallization - separated by a boundary 22 of a second part 23 to be protected because it must not receive metallization ( figure 4a ).
- the operator sets up the half sleeve 4 and 5 on the second part 23 so as to cooperate the first and second portions 6 and 7 of the cavity 3 with the part 23 to be protected from the metallization ( figure 4c ).
- the protective device 1 partially covers the landing gear rod 20, part of which extends outside the protective device 1.
- the parallelepiped inserts 4.11, 4.12, 4.21 and 4.22 then face the metal inserts 5.11, 5.12 , 5.21 and 5.22 and the magnetic attraction keeps the half sleeves 4 and 5 in contact.
- This magnetic attraction also presses the surfaces 30, 31 forming the cavities 6 and 7 against the second portion 23 of the landing gear rod 20, which has the effect of preventing relative sliding of the half sleeves 4 and 5 with respect to the landing gear rod 20 due to the particular coefficient of friction between the metal of the landing gear rod 20.
- the cavity-forming surfaces are provided with a material having a dry adhesion factor on the upper steel at 0.6. This material is rubber forming the half-sleeves 4 and 5. In this configuration, one end of the sleeve 3 coincides with the border 22.
- the sleeve is shaped so that when it is positioned on the part, it then prevents the fluid penetration against the protected surface of the part 20.
- the metallization operation is performed by dipping the assembly sleeve and piece in a plating bath and the first portion 21 of the landing gear rod 20 then receives the metallization treatment.
- the portion 23 protected by the sleeve remains free of metallization.
- the two half sleeves 4 and 5 are deposited.
- the cavity portions 106 and 107 of the half sleeves 104 and 105 comprise longitudinal inserts 30 and 31 of an adherent elastomeric material such as rubber.
- these inserts are opposed to the relative sliding of the sleeves and the portion of the part to be protected.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Engineering & Computer Science (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Buffer Packaging (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Braking Arrangements (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
- Gasket Seals (AREA)
- Electroplating Methods And Accessories (AREA)
Description
La présente invention concerne le domaine du traitement de surface et plus particulièrement celui de la protection et du masquage d'éléments lors de l'application d'un traitement de surface.The present invention relates to the field of surface treatment and more particularly that of the protection and masking of elements during the application of a surface treatment.
Lors de l'application d'un traitement de surface sur une pièce tel qu'un sablage, l'application d'une peinture ou d'une métallisation, il existe généralement des parties de la pièce qu'il est souhaitable de préserver du traitement. Il peut s'agir d'éléments filetés ou taraudés, de surfaces usinées tels que des tiges de pistons, ou encore des parties de la pièce ayant reçu ou devant recevoir un traitement de surface différent de celui qui est appliqué. Classiquement de telles parties de la pièce sont protégées par des caches constitués de plaques de carton maintenues à l'aide de bandes adhésives collées haute performance sur la partie à protéger, voire de plaques de plomb souples pour des opérations comme le sablage ou la métallisation.When applying a surface treatment to a workpiece such as sanding, painting or metallizing, there are generally parts of the workpiece that are desirable to preserve from processing . They may be threaded or threaded elements, machined surfaces such as piston rods, or parts of the part having received or to receive a surface treatment different from that which is applied. Conventionally such parts of the room are protected by covers made of cardboard plates held with high performance adhesive tape on the portion to be protected, or flexible lead plates for operations such as sanding or metallization.
Il arrive régulièrement que la bande adhésive collée, ou son adhérence par collage sur la pièce, se dégrade en raison des conditions environnementales ou sous l'effet du traitement appliqué à la pièce. Les caches glissent, cessent de protéger la partie à préserver ce qui aboutit à des non conformités coûteuses voire impossibles à reprendre qui entraînent la mise au rebut de la pièce complète. Les opérations de pose et de dépose de tels caches sont longues et impactent les délais de production. La bande adhésive utilisée est généralement retirée à l'aide d'outils coupants qui peuvent endommager la pièce et/ou blesser les opérateurs et/ou laisser des résidus sur la pièce. Enfin, ces caches représentent un volume important de déchets rarement recyclables en raison de la nature des produits qui les recouvrent. Un dispositif de protection est aussi connu du document
Un but de l'invention est de réduire les risques de dégradation de la pièce à traiter lors de telles opérations.An object of the invention is to reduce the risk of degradation of the workpiece during such operations.
A cet effet, on prévoit selon l'invention, un dispositif de protection d'une partie de pièce à protéger selon la revendication 1.For this purpose, according to the invention, a device for protecting a part of the part to be protected according to claim 1 is provided.
Ainsi, le dispositif réalise une protection dont la pose et la dépose sont facilitées par le caractère séparable de celui-ci. Le maintien du dispositif de protection sur la pièce à l'aide d'une surface s'opposant au glissement relatif du dispositif et de la partie de pièce à protéger élimine l'utilisation d'outils coupants et les risques d'endommagement de la pièce pouvant en résulter.Thus, the device provides a protection whose installation and removal are facilitated by the separable character thereof. Maintaining the protection device on the workpiece with a surface opposing the relative sliding of the device and the part of the part to be protected eliminates the use of cutting tools and the risk of damage to the workpiece resulting in it.
Avantageusement, le corps séparable du dispositif est de forme cylindrique et les moyens de maintien en position des sous éléments relativement les uns par rapport aux autres comprennent au moins un élément magnétique.Advantageously, the separable body of the device is of cylindrical shape and the means for holding the sub-elements relative to one another in relation to each other comprise at least one magnetic element.
Préférentiellement, selon ce dernier mode de réalisation, l'un au moins des éléments magnétiques est un aimant permanent porté par l'un des sous des éléments du corps séparable, cet aimant permanent est disposé pour pouvoir coopérer avec un autre élément magnétique qui est porté par un autre des sous éléments pour maintenir en position ces deux sous éléments relativement l'un par rapport à l'autre.Preferably, according to this last embodiment, at least one of the magnetic elements is a permanent magnet carried by one of the sub-elements. separable body, this permanent magnet is arranged to cooperate with another magnetic element which is carried by another sub-elements to maintain in position these two sub-elements relative to each other.
Selon l'invention, la surface s'opposant au glissement relatif du dispositif et de la pièce à protéger comprend un matériau présentant un facteur d'adhérence à sec sur de l'acier qui est supérieur à 0.6, ce matériau étant préférentiellement du caoutchouc.According to the invention, the surface opposing the relative sliding of the device and the part to be protected comprises a material having a dry adhesion factor on steel which is greater than 0.6, this material being preferably rubber.
De préférence, le corps séparable est recouvert de silice à sa périphérie extérieure, ce qui facilite son nettoyage afin de prolonger sa réutilisation.Preferably, the separable body is covered with silica at its outer periphery, which facilitates cleaning in order to prolong its reuse.
De préférence encore, le corps séparable est un manchon cylindrique circulaire droit séparable en un premier et un deuxième demi manchon selon un plan passant par un axe longitudinal du manchon et qui définit des surfaces de jonction des premier et deuxième demi manchons, ces surfaces de jonction sont de formes complémentaires entre elles de manière à limiter le passage de matière entre l'intérieur et l'extérieur du manchon lorsque ces demi manchons sont joints.More preferably, the separable body is a right circular cylindrical sleeve separable into a first and a second half sleeve in a plane passing through a longitudinal axis of the sleeve and which defines joining surfaces of the first and second half sleeves, these joining surfaces. are of complementary shape to each other so as to limit the passage of material between the inside and outside of the sleeve when these half sleeves are joined.
Préférentiellement, selon ce dernier mode de réalisation, la surfaces de jonction du premier demi manchon comprend au moins un élément exerçant une attraction magnétique sur un élément correspondant du deuxième demi manchon.Preferably, according to this last embodiment, the junction surfaces of the first half-sleeve comprises at least one element exerting a magnetic attraction on a corresponding element of the second half-sleeve.
Enfin, l'invention comprend également un procédé de traitement d'une surface d'une pièce selon la revendication 9. Typiquement, lorsque l'on épargne une pièce à l'aide d'un scotch, on peut laisser de la colle sur la pièce ou lors de la découpe du scotch, on peut rayer la pièce et compromettre sa qualité.Finally, the invention also comprises a method for treating a surface of a workpiece according to claim 9. Typically, when you spare a room with a tape, you can leave glue on the piece or when cutting the tape, you can scratch the room and compromise its quality.
L'avantage de ce procédé est:
- d'une part de pouvoir simplement épargner une surface de la pièce que l'on ne souhaite pas atteindre par l'opération de traitement de surface ; et
- d'autre part de pouvoir, une fois le traitement de surface réalisé, simplement retirer le dispositif de protection sans risque d'endommagement de la pièce.
- on the one hand simply to be able to save a surface of the part that one does not wish to reach by the surface treatment operation; and
- on the other hand of power, once the surface treatment performed, simply remove the protective device without risk of damage to the room.
Selon un mode de réalisation particulier du procédé selon l'invention, après l'étape de réalisation de l'opération de traitement de surface sur la pièce, on met en oeuvre une étape de dépose du dispositif de protection.According to a particular embodiment of the method according to the invention, after the step of performing the surface treatment operation on the part, it implements a step of removing the protection device.
Selon un mode de réalisation particulier du procédé selon l'invention, l'opération de traitement de surface est une opération consistant à réaliser un revêtement sur une surface de la pièce qui est au moins partiellement délimitée à sa périphérie par le dispositif de protection.According to a particular embodiment of the method according to the invention, the surface treatment operation is an operation consisting in producing a coating on a surface of the part which is at least partially delimited at its periphery by the protection device.
Selon un mode de réalisation particulier du procédé selon l'invention, le revêtement est une peinture ou un dépôt métallique.According to a particular embodiment of the method according to the invention, the coating is a paint or a metal deposit.
Par étanchéité à l'eau, on entend que la surface protégée de manière étanche à l'eau doit pouvoir être plongée avec le dispositif de protection mis en place sous au moins 1 mètre de hauteur d'eau à 20°C sans que la surface ainsi protégée ne soit mouillée.By watertightness, it is meant that the watertight protected surface must be able to be immersed with the protective device put in place under at least 1 meter of water at 20 ° C without the surface thus protected is not wet.
Cette étanchéité est réalisée via un joint placé tout autour des surfaces s'opposant au glissement et/ou via une mise en contact étroit de ces surfaces s'opposant au glissement contre la surface protégée.This seal is achieved via a seal placed around the surfaces opposing sliding and / or via a close contact of these surfaces opposing sliding against the protected surface.
Ce mode de réalisation permet par exemple de plonger la pièce :
- dans un bain d'acide si le matériau des surfaces de glissement est inerte à l'acide ; ou
- dans un bain de peinture ; ou
- dans un bain de métallisation électrolytique pour traiter localement une portion de surface de la pièce tout en épargnant la surface protégée qui reste sèche.
- in an acid bath if the material of the sliding surfaces is acid-inert; or
- in a paint bath; or
- in an electrolytic plating bath for locally treating a surface portion of the workpiece while sparing the protected surface which remains dry.
Cette étanchéité est favorisée par l'utilisation des moyens de maintien en position des sous éléments relativement les uns par rapport aux autres qui sont préférentiellement disposés pour forcer l'appui desdits joints et/ou desdites surfaces s'opposant au glissement contre la pièce.This sealing is favored by the use of the means for holding in position relative sub-elements relatively to each other which are preferably arranged to force the support of said seals and / or said surfaces opposing sliding against the workpiece.
On a ainsi un dispositif de protection qui est adhérant à la pièce :
- d'une part, par le fait que la surface anti glissement est dans un matériau présentant préférentiellement un facteur d'adhérence à sec sur de l'acier qui est supérieur à 0.6 ; et d'autre part par le fait que les moyens de maintien en position forcent le contact entre la surface de pièce épargnée et les surfaces du dispositif de protection qui s'opposent à son glissement relatif par rapport à la pièce.
- on the one hand, in that the anti-slip surface is in a material preferably having a dry adhesion factor on steel which is greater than 0.6; and on the other hand, by the fact that the holding means in position force the contact between the spared part surface and the surfaces of the protection device which oppose its relative sliding with respect to the part.
L'invention sera mieux comprise à la lecture de la description qui suit de modes de réalisation non limitatifs, en référence aux figures des dessins annexés parmi lesquelles :
- la
figure 1 est une vue schématique en perspective du dispositif de protection selon l'invention ; - la
figure 2 est un vue en coupe transversale du dispositif de lafigure 1 suivant un plan de coupe transversale II-II ; - la
figure 3 est une vue schématique en perspective éclatée du dispositif de lafigure 1 ; - les
figures 4a, 4b, 4c, 4d illustrent les étapes successives mises en oeuvre pour la réalisation du procédé selon l'invention de traitement d'une surface d'une pièce ; - la
figure 5 est une vue schématique en perspective éclatée d'un deuxième mode de réalisation du dispositif selon l'invention.
- the
figure 1 is a schematic perspective view of the protection device according to the invention; - the
figure 2 is a cross-sectional view of the device of thefigure 1 along a cross-sectional plane II-II; - the
figure 3 is a schematic exploded perspective view of the device of thefigure 1 ; - the
Figures 4a, 4b, 4c, 4d illustrate the successive steps used for carrying out the method according to the invention for treating a surface of a part; - the
figure 5 is a diagrammatic perspective exploded view of a second embodiment of the device according to the invention.
En référence aux
Le manchon 2 est séparable en deux sous éléments sous la forme d'un premier demi manchon 4 et d'un deuxième demi manchon 5 le long d'un plan P passant par l'axe longitudinal X. Le plan P définit alors des surfaces rectangulaires de jonction 4.1 et 4.2 du premier demi manchon 4 coopérant avec des surfaces de jonctions correspondantes 5.1 et 5.2 du deuxième demi manchon 5. Comme visible aux
La mise en oeuvre du dispositif de protection 1 est maintenant décrite en référence aux
Les éléments identiques ou analogues à ceux précédemment décrits porteront une référence numérique augmentée d'une centaine dans la description qui suit du deuxième mode de réalisation.Elements identical or similar to those previously described will bear a numerical reference increased by one hundred in the description which follows of the second embodiment.
En référence à la
Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits mais englobe toute variante entrant dans le champ de l'invention telle que définie par les revendications.Of course, the invention is not limited to the embodiments described but encompasses any variant within the scope of the invention as defined by the claims.
En particulier,
- bien qu'ici le corps séparable du dispositif soit de forme cylindrique circulaire droite, l'invention s'applique également à d'autres formes de corps séparable, comme par exemple un corps tubulaire de section carrée ou quelconque ou un corps parallélépipédique comprenant une cavité ;
- bien qu'ici le corps du dispositif de protection soit séparable en deux demi manchons, l'invention s'applique également à un corps séparable en trois sous éléments ou plus ;
- bien qu'ici le corps du dispositif de protection comprenne une cavité cylindrique longitudinale, l'invention s'applique également à d'autres formes de cavités telles que des cavités pouvant accueillir des singularités de la pièce comme par exemple une bride, un épaulement, un raccord ;
- bien qu'ici les surfaces de jonctions des demi manchons comprennent chacune deux inserts rectangulaires, l'invention s'applique également à un insert unique, ou plus de deux insert. L'invention s'applique également à d'autres formes d'insert comme par exemple des inserts circulaires ou de forme quelconque ;
- bien qu'ici le premier demi manchon comprenne des inserts réalisés en matériau magnétique et coopérant avec des inserts métalliques du deuxième demi manchon, l'invention s'applique également à d'autres moyens de maintien en position des manchons entre eux comme par exemple un revêtement auto agrippant de type velcro ®, des surfaces autocollantes repositionnables ou un fermeture à glissière;
- bien qu'ici le manchon soit en caoutchouc, l'invention s'applique également à des manchons réalisés en d'autres matériaux comme par exemple le métal, le bois ou les matières synthétiques ;
- bien qu'ici le corps séparable comprenne deux demi manchons dont les cavités sont pourvues chacun d'un insert longitudinal en une matière élastomère adhérente, l'invention s'applique également à un corps comprenant un unique sous élément pourvus d'un insert longitudinal en une matière élastomère adhérente ;
- bien qu'ici, les cavités des demi manchons comprennent des inserts longitudinaux en une matière élastomère adhérente, l'invention s'applique également à d'autres types de portions de la cavité pourvue d'une surface s'opposant au glissement comme par exemple des sections annulaires ou une pluralité de pastilles circulaires
- bien qu'ici les sous éléments du corps séparable sont présentés comme pouvant être disjoints l'un de l'autre lorsqu'ils sont séparés, il est aussi possible qu'ils soient liés entre eux par un lien souple autorisant la séparation et l'écartement de ces sous éléments tout en maintenant une attache souple imposant une distance d'écartement maximale entre ces éléments séparables (ceci limite le risque d'égarer un des sous éléments tout en facilitant la manipulation des sous éléments lorsqu'ils sont séparés).
- although here the separable body of the device is of straight circular cylindrical shape, the invention also applies to other forms of separable body, such as for example a tubular body of square section or any or a parallelepiped body comprising a cavity ;
- although here the body of the protective device is separable into two half sleeves, the invention also applies to a separable body in three or more sub-elements;
- although here the body of the protective device includes a cylindrical cavity longitudinal, the invention also applies to other forms of cavities such as cavities that can accommodate singularities of the part such as a flange, a shoulder, a connection;
- although here the junction surfaces of the half sleeves each comprise two rectangular inserts, the invention also applies to a single insert, or more than two insert. The invention also applies to other forms of insert such as circular inserts or any shape;
- although here the first half-sleeve comprises inserts made of magnetic material and cooperating with metal inserts of the second half-sleeve, the invention also applies to other means for holding the sleeves in position together, such as for example a Velcro ® type Velcro® self-adhesive coating, repositionable self-adhesive surfaces or zipper;
- although here the sleeve is rubber, the invention also applies to sleeves made of other materials such as metal, wood or synthetic materials;
- although here the separable body comprises two half-sleeves whose cavities are each provided with a longitudinal insert made of an adherent elastomeric material, the invention also applies to a body comprising a single sub-element provided with a longitudinal insert in an adherent elastomeric material;
- although here, the cavities of the half-sleeves comprise longitudinal inserts in an adherent elastomeric material, the invention is also applicable to other types of portions of the cavity provided with a surface that opposes sliding, for example annular sections or a plurality of circular pellets
- although here the sub-elements of the separable body are presented as being separable from each other when they are separated, it is also possible that they are linked together by a flexible link allowing separation and separation. spacing these sub-elements while maintaining a flexible fastener imposing a maximum distance between these separable separable elements (this limits the risk of mislaying one of the sub-elements while facilitating the handling of sub-elements when they are separated).
Claims (12)
- An ensemble comprising a part to be protected, and a protection device (1) for protecting a portion (23) of said part to be protected, the device comprising a separable body (2) that can be separated into at least two sub-elements (4, 5), each sub-element (4, 5) having a cavity (6, 7) for receiving at least partially the portion (23) to be protected of the part, the device having holding means (4.11, 4.12, 4.21, 4.22, 5.11, 5.12, 5.21, 5.22) for holding the sub-elements (4, 5) in position relative to one another, and at least one of the sub-elements (4, 5) having a fraction of its cavity (6, 7) that is provided with surfaces (30, 31) that opposes relative sliding between the protection device (1) and the portion (23) to be protected of the part, characterized in that the surfaces (30, 31) opposing relative sliding of the device and the portion to be protected of the part comprise a material presenting a dry tack factor with steel that is greater than 0.6, and the protection device (1) and the part (20) being shaped in such a manner that when the protection device (1) is put into place around the portion (23) of the part, the part presents a fraction of its surface that is protected in waterproof manner by the protection device (1), this waterproofing being achieved by ensuring close contact between these surfaces that oppose sliding and the protected surface and via a gasket placed all around the surfaces opposing sliding.
- Ensemble according to claim 1, wherein the separable body (2) is cylindrical in shape.
- Ensemble according to claim 1 or claim 2, wherein the holding means (4.11, 4.12, 4.21, 4.22, 5.11, 5.12, 5.21, 5.22) for holding the sub-elements (4, 5) in position relative to one another comprise at least one magnetic element (4.11, 4.12, 4.21, 4.22).
- Ensemble according to claim 3, wherein at least one of the magnetic elements is a permanent magnet carried by one of the sub-elements (4, 5) of the separable body, the permanent magnet being arranged so as to be capable of co-operating with another magnetic element that is carried by another of the sub-elements (4, 5) in order to hold these two sub-elements (4, 5) in position relative to each other.
- Ensemble according to anyone of claims 1 to 4, wherein the surface opposing sliding is made of rubber.
- Ensemble according to anyone of claims 1 to 5, wherein the separable body (2) is covered in silica on its outer periphery.
- Ensemble according to anyone of claims 1 to 6, wherein the separable body (2) is a right circular cylindrical sleeve separable into first and second half-sleeves (4, 5) on a plane containing a longitudinal axis (X) of the sleeve and defining junction surfaces (4.1, 4.2, 5.1, 5.2) of the first and second half-sleeves (4, 5), these junction surfaces being of mutually complementary shapes so as to limit the passage of material between the inside and the outside of the sleeve when the half-sleeves are joined together.
- Ensemble according to claim 7, wherein the junction surface of the first half-sleeve (4) comprises at least one element (4.11, 4.12, 4.21, 4.22) exerting magnetic attraction on a corresponding element (5.11, 5.12, 5.21, 5.22) of the second half-sleeve (5).
- A surface treatment method for treating the surface of a part (20), the method comprising the steps of:- placing a protection device (1) for protecting a portion (22) of this part (20), the device comprising a separable body (2) that can be separated into at least two sub-elements (4, 5), each sub-element (4, 5) having a cavity for receiving at least partially the portion (23) to be protected of the part, the device having holding means (4.11, 4.12, 4.21, 4.22, 5.11, 5.12, 5.21, 5.22) for holding the sub-elements in position relative to one another, and at least one of the sub-elements (4, 5) having a fraction of its cavity (6, 7) that is provided with surfaces (30, 31) that opposes relative sliding between the protection device and the portion to be protected of the part, the surfaces (30, 31) opposing relative sliding of the device and the portion to be protected of the part comprising a material presenting a dry tack factor with steel that is greater than 0.6, the part presents a fraction of its surface that is protected in waterproof manner by the protection device (1) in place, this waterproofing being achieved by ensuring close contact between these surfaces that oppose sliding and the protected surface and via a gasket placed all around the surfaces opposing sliding, the portion (22) of the part (20) to be protected being surrounded by the protection device;- performing a surface treatment operation on the part (20), the portion of the part that is surrounded with the protection device (1) being preserved from the surface treatment by the protection device (1).
- Surface treatment method according to claim 9, including a step of removing the protection device (1) after the step of performing the surface treatment operation on the part.
- Surface treatment method according to anyone of claims 9 or 10, wherein the surface treatment operation is an operation that consists in making a coating on a surface of the part, which coating is defined at least in part at its periphery by the protection device (1).
- Surface treatment method according to claim 11, wherein the coating is a paint or a deposit of metal.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1453985A FR3020580B1 (en) | 2014-04-30 | 2014-04-30 | PROTECTIVE DEVICE AND METHOD USING SUCH A DEVICE |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2954957A1 EP2954957A1 (en) | 2015-12-16 |
EP2954957B1 true EP2954957B1 (en) | 2018-01-10 |
Family
ID=51063689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15162681.9A Active EP2954957B1 (en) | 2014-04-30 | 2015-04-07 | Protective device and method implementing such a device |
Country Status (6)
Country | Link |
---|---|
US (1) | US20150314321A1 (en) |
EP (1) | EP2954957B1 (en) |
CN (1) | CN105018991B (en) |
CA (1) | CA2888253C (en) |
FR (1) | FR3020580B1 (en) |
MX (1) | MX2015005236A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112111704B (en) * | 2019-06-20 | 2023-07-25 | 刘洪彬 | Thermal diffusion equipment and quantitative control method |
CN110918303A (en) * | 2019-12-31 | 2020-03-27 | 广西玉柴机器股份有限公司 | Shielding tool and shielding method of oil filter |
CN114808055B (en) * | 2022-04-02 | 2023-07-04 | 中国电子科技集团公司第三十八研究所 | Local electroplating protection device and method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1358723A (en) * | 1962-05-25 | 1964-04-17 | Polymer Processes | Method and apparatus for depositing a partial coating on objects to be coated |
JP2000054112A (en) * | 1998-08-10 | 2000-02-22 | Canon Inc | Masking method |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2925064A (en) * | 1958-10-24 | 1960-02-16 | Kahn George | Door knob paint shield |
FR2615126A1 (en) * | 1987-05-13 | 1988-11-18 | Tech Fonderie Cie Europ | Protective mask for the painting of metal components |
JPH0429771A (en) * | 1990-05-28 | 1992-01-31 | Nagoya Yuka Kk | Masking material |
US5198031A (en) * | 1991-08-21 | 1993-03-30 | Derstine Russell L | Mask for door hinges |
US5432979A (en) * | 1993-10-26 | 1995-07-18 | Harper; Jack D. | Door hardware paint shield |
DE29617724U1 (en) * | 1996-10-12 | 1996-11-28 | Voss Chemie | Magnetic film for partially covering vehicle body parts |
EP2075074B1 (en) * | 2006-07-24 | 2011-10-19 | Sulzer Metco AG | Masking system for masking a crank case for a combustion engine |
US20100092765A1 (en) * | 2008-10-10 | 2010-04-15 | 3M Innovative Properties Company | Silica coating for enhanced hydrophilicity |
US20100263589A1 (en) * | 2009-04-21 | 2010-10-21 | Cedar Ridge Research Llc | Device for surface masking |
-
2014
- 2014-04-30 FR FR1453985A patent/FR3020580B1/en active Active
-
2015
- 2015-04-07 EP EP15162681.9A patent/EP2954957B1/en active Active
- 2015-04-15 CA CA2888253A patent/CA2888253C/en active Active
- 2015-04-24 MX MX2015005236A patent/MX2015005236A/en active IP Right Grant
- 2015-04-28 CN CN201510209842.2A patent/CN105018991B/en active Active
- 2015-04-29 US US14/699,339 patent/US20150314321A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1358723A (en) * | 1962-05-25 | 1964-04-17 | Polymer Processes | Method and apparatus for depositing a partial coating on objects to be coated |
JP2000054112A (en) * | 1998-08-10 | 2000-02-22 | Canon Inc | Masking method |
Also Published As
Publication number | Publication date |
---|---|
CN105018991A (en) | 2015-11-04 |
EP2954957A1 (en) | 2015-12-16 |
FR3020580A1 (en) | 2015-11-06 |
US20150314321A1 (en) | 2015-11-05 |
CA2888253A1 (en) | 2015-10-30 |
CN105018991B (en) | 2019-02-26 |
CA2888253C (en) | 2017-08-22 |
FR3020580B1 (en) | 2016-05-20 |
MX2015005236A (en) | 2015-11-05 |
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