FR2799985A1 - Filter for e.g. tea, is formed from metal mesh shaped into half-tube with center slit opening for bending together by edge bars to form cylinder with closed base - Google Patents

Filter for e.g. tea, is formed from metal mesh shaped into half-tube with center slit opening for bending together by edge bars to form cylinder with closed base Download PDF

Info

Publication number
FR2799985A1
FR2799985A1 FR9913476A FR9913476A FR2799985A1 FR 2799985 A1 FR2799985 A1 FR 2799985A1 FR 9913476 A FR9913476 A FR 9913476A FR 9913476 A FR9913476 A FR 9913476A FR 2799985 A1 FR2799985 A1 FR 2799985A1
Authority
FR
Grant status
Application
Patent type
Prior art keywords
half
tube
filter
step
vertical wall
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.)
Granted
Application number
FR9913476A
Other languages
French (fr)
Other versions
FR2799985B1 (en )
Inventor
Philippe Chretien
Eric Villaume
Antonio Chiga
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.)
GANTOIS Ets
Original Assignee
ETABLISSEMENTS GANTOIS
GANTOIS ETS
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

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
    • B01D29/11Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/111Making filtering elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/10Filter screens essentially made of metal

Abstract

To produce a filter (1) of a metal mesh, with a symmetrical vertical plane with a vertical wall (2) and a closed base (3), the metal mesh (4) is shaped to form a half-tube (5) around an axis (A) with rounded ends. The half-tube is bent into shape, and a slit opening (6) is formed at the center of the half-tube at a tangent to it and at right angles to its axis, to give two half-shells (7,7') linked together by strap sections (8,8') at the ends of the opening. The two half-shells are bent by 90 deg towards each other to form the circular and vertical wall with a closed base. Preferred Features: The shaping of the metal mesh (4), the bending of the half-tube (5) and a slit (6) opening formation are all executed simultaneously. The joint (9) between the two half-shells (7,7') is welded to give the vertical wall (2) and closed base (3). The filter structure can be molded at least along the plane of the joint (9) and around the upper edge (10) of the vertical wall (2) and at the exterior of the base (3).

Description

présente invention se rapporte au domaine de la réalisation filtres en tissu métallique à plan de symétrie vertical, du type comportant au moins paroi sensiblement verticale, un fond utilisables par exemple pour filtration du thé ou de toute autre matière. present invention relates to the field of the realization filters metal fabric to vertical plane of symmetry, of the type comprising at least substantially vertical wall, a base usable for example for filtration of tea or any other material.

antérieur connaît déjà des procédés de réalisation de filtres en tissu métallique à plan de symétrie vertical du type comportant une paroi sensiblement verticale un fond. prior already known processes for producing filters metal fabric to vertical plane of symmetry of the type comprising a substantially vertical wall of a bottom. L'art antérieur connaît par exemple une première méthode qui consiste réaliser la paroi verticale à l'aide d'une pièce en tissu métallique rectangulaire puis à joindre les coins de la pièce rectangulaire afin de réaliser un cylindre par soudure du plan de joint, puis à souder une pièce de fond rapportée au fond du cylindre. The prior art knows for example, a first method which comprises carrying out the vertical wall with a piece of rectangular metal fabric then to join the corners of the rectangular piece to achieve a cylinder by welding the joint plane, and welding a bottom insert in the cylinder base.

L'art antérieur connaît également une deuxième méthode consiste à réaliser deux demi-cylindres indépendants à bouts ronds et à les assembler ensuite, par exemple par soudage. The prior art also includes a second method consists in making two independent half-cylinder with round ends and assembling the second, for example by welding.

méthodes sont difficiles à mettre en ceuvre industriellement car elles nécessitent beaucoup de manipulations délicates et beaucoup de precision lors de l'assemblage des éléments. methods are difficult to ceuvre industrially because they require a lot of delicate handling and a lot of precision in assembling the elements.

présente invention entend remédier aux inconvénients de l'art antérieur en proposant de supprimer l'étape d'assemblage d'éléments distincts et en proposant de réaliser les filtres par pliage selon le plan de symétrie vertical du filtre d'une pièce unique constituée de deux demi-coquilles, ces deux demi-coquilles étant liées entre elles par deux barrettes de matière servant d'articulation. present invention to remedy the drawbacks of the prior art by proposing to remove the step of assembling separate components and proposing to realize filters by bending in the vertical plane of symmetry of the filter of a single piece consisting of two half-shells, these two half-shells being joined together by two material webs serving as a joint.

Avantageusement, cette pièce unique constituée de deux demi coquilles liées deux barrettes d'articulation est obtenue en réalisant demi-tube comportant un axe et en opérant une fente au centre du demi-tube, tangentiellement au demi tube et perpendiculairement à son axe. Advantageously, the single piece consists of two half shells connected two hinge strips is obtained by performing a half-tube having an axis and carrying out a slot in the center of the half-tube, tangentially to the half tube and perpendicular to its axis.

Avantageusement également, ce demi-tube à fente est obtenu par une opération unique d'emboutissage d'un tissu métallique, de détourage du demi-tube obtenu et de réalisation de la fente à l'aide d'un outil unique. Also advantageously, this slotted half-tube is obtained by a single operation of drawing a metal fabric, clipping of the obtained half-tube and realization of the slot using a single tool.

La présente invention se rapporte également aux filtres comportant moins une paroi sensiblement verticale, un fond et au moins un plan de symétrie vertical réalisés par la mise en ceuvre du procédé selon l'invention. The present invention also relates to filters comprising least one substantially vertical wall, a bottom and at least one vertical plane of symmetry achieved by ceuvre of the method according to the invention. On comprendra mieux l'invention à l'aide de la description faite ci-après d'un mode de mise en oeuvre donné à titre d'exemple non limitatif, en référence à la figure unique annexée. The invention will be better understood using the description below of an embodiment given by way of non-limiting example, in reference to the single appended figure.

Le procedé selon l'invention, illustré figure 1, est un procédé de réalisation d'un filtre (1) tissu métallique, du type comportant au moins une paroi sensiblement verticale (2), un fond (3) et au moins un plan de symétrie vertical, caractérisé en ce qu'il comporte - une étape d'emboutissage d'un tissu métallique (4), afin de réaliser un demi- tube (5) comportant un axe A et des bouts sensiblement arrondis, - une étape détourage dudit demi-tube (5), - une étape de réalisation d'une fente (6) au centre dudit demi-tube (5), tangentiellement audit demi-tube (5) et perpendiculairement à son axe A, afin d'obtenir deux demi-coquilles (7, 7') reliées entre elles par deux barrettes (8, 8'), - une étape repliage des deux demi-coquilles (7, 7') à 90 , l'une contre l'autre, sur le plan de symétrie vertical, comme indiqué par la flèche F, afin de former la paroi sensiblement verticale (2) complète à fond (3). The method according to the invention, illustrated in FIG 1, is an embodiment of a filter method (1) metallic fabric, of the type comprising at least one substantially vertical wall (2), a bottom (3) and at least one plane of vertical symmetry, characterized in that it comprises - a pressing step of a metal fabric (4) in order to achieve a half-tube (5) having an axis a and substantially rounded ends, - a trimming step of said half-tube (5), - a step of forming a slit (6) in the center of said half-tube (5), tangentially to said half-tube (5) and perpendicularly to its axis a in order to obtain two half -Shells (7, 7 ') connected together by two webs (8, 8'), - a folding step of the two half-shells (7, 7 ') at 90, one against the other, in terms vertical symmetry, as indicated by the arrow F, to form the substantially vertical wall (2) to complete bottom (3).

Le tissu métallique (4) peut se présenter originellement sous la forme rouleau ou d'une plaque. The metal fabric (4) can be originally present in the form of a roller or plate.

Les barrettes (8, 8') consistent en des liaisons formées de quelques fils métalliques. The webs (8, 8 ') consist of bonds formed from some metal son. Elles sont obtenues lors de la réalisation de la fente et elles sont venues de matière avec les deux demi-coquilles (7, 7') formant le demi-tube servant ainsi liaison et d'articulation entre les deux demi-coquilles (7, 7'). They are obtained during the production of the slot and are integral with the two half-shells (7, 7 ') forming the half-tube serving as connection and articulation between the two half-shells (7, 7 '). Elles permettent donc de ne manipuler qu'une seule pièce, le demi-tube (5), lors de la mise en forme du filtre (1). They thus allow only handle a single piece, the half-tube (5) at the filter forming (1).

Dans une version préférée de l'invention, les étapes d'emboutissage du tissu métallique (4), de détourage dudit demi-tube (5) obtenu et de réalisation de la fente (6) sont opérées simultanément, à l'aide d'un outil unique, afin de permettre de réaliser ledit filtre (1) plus rapidement et pour un coût moindre. In a preferred version of the invention, the drawing steps of the metal fabric (4), clipping said half-tube (5) and obtained embodiment of the slot (6) are operated simultaneously by means of a unique tool to enable performing said filter (1) more quickly and for less cost.

Pour parfaire la réalisation du filtre (1), le procédé selon l'invention peut outre comporter une étape de soudure du plan de joint (9) des deux demi coquilles (7, 7') formant ladite paroi sensiblement verticale (2) à fond (3). To complete the realization of the filter (1), the method of the invention may further comprise a step of welding the joint plane (9) of the two half shells (7, 7 ') forming said substantially vertical wall (2) at bottom (3).

Le procédé selon l'invention peut également comporter, à la place de l'étape de soudure du plan de joint (9) ou en complément de cette étape, une étape de surmoulage, au moins, du plan de joint (9) des deux demi-coquilles (7, 7') formant ladite paroi sensiblement verticale (2) à fond (3), à l'aide, par exemple, de matière plastique. The method of the invention may also comprise, instead of the welding step of the parting line (9) or in addition to this step, a molding step, at least, the joint plane (9) of the two half-shells (7, 7 ') forming said substantially vertical wall (2) to base (3), using, for example, plastic.

Avantageusement, le surmoulage du plan de joint (9) permet de le noyer complètement dans matière de surmoulage et augmente ainsi la résistance mécanique du filtre Cette étape surmoulage du plan de joint (9) peut en outre être complétée par une étape de surmoulage du bord supérieure (10) de ladite paroi sensiblement verticale (2) ainsi pourtour extérieur du fond (3), afin d'augmenter encore la résistance mécanique filtre (1). Advantageously, the molding of the joint plane (9) allows to drown the completely in overmolding material and thus increases the strength of the filter This step overmolding the parting line (9) may further be supplemented by a step of molding the edge upper (10) of said substantially vertical wall (2) and outer circumference of the bottom (3), in order to further increase the mechanical filter resistor (1).

La présente invention se rapporte également aux filtres (1) en tissu métallique, du type comportant une paroi sensiblement verticale (2), un fond (3) et un plan de symétrie, réalisés par la mise en oeuvre du procédé selon l'invention. The present invention also relates to filters (1) of metal fabric, of the type comprising a substantially vertical wall (2), a bottom (3) and a plane of symmetry, made by implementation of the process according to the invention.

II est important noter que la forme de la paroi sensiblement verticale (2) peut changer sans sorte pour cela du cadre de l'invention. It is important note that the shape of the substantially vertical wall (2) can change without so from the scope of the invention. II est tout à fait possible d'imaginer, exemple, que cette paroi ne soit pas exactement cylindrique et comporte facettes. It is quite possible to imagine, for example, that this wall is not exactly cylindrical and has facets.

Claims (1)

  1. <B>REVENDICATIONS</B> 1- Procédé de réalisation d'un filtre (1) à plan de symétrie vertical en tissu métallique, type comportant au moins une paroi sensiblement verticale (2), un fond (3), caractérisé en ce qu'il comporte - une étape d'emboutissage d'un tissu métallique (4), afin de réaliser un demi- tube (5) comportant un axe A et des bouts sensiblement arrondis, - une étape détourage dudit demi-tube (5), - une étape de réalisation d'une fente (6) au centre dudit demi-tube (5), tangentiellement audit demi-tube (5) et perpendiculairement à son axe A, afin d'obtenir deux demi-coquilles (7, 7') reliées entre elles par deux barrettes (8, 8'), et - une étape de repliage des deux demi-coquilles (7, 7') à 90 , l'une contre l'autre, sur le plan de symétrie vertical, afin de former la paroi sensiblement verticale (2) complète à fond (3). <B> CLAIMS </ B> 1 ​​A method of manufacturing a filter (1) with a vertical plane of symmetry in metal fabric, the type comprising at least one substantially vertical wall (2), a bottom (3), characterized in that it comprises - a pressing step of a metal fabric (4) in order to achieve a half-tube (5) having an axis a and substantially rounded ends, - a trimming step of said half-tube (5) - a step of forming a slit (6) in the center of said half-tube (5), tangentially to said half-tube (5) and perpendicularly to its axis a in order to obtain two half-shells (7, 7 ') interconnected by two webs (8, 8'), and - a folding step of the two half-shells (7, 7 ') at 90, one against the other on the vertical plane of symmetry, to form the substantially vertical wall (2) to complete bottom (3). 2- Procédé de réalisation d'un filtre (1) selon la revendication 1, caractérisé ce que les étapes d'emboutissage du tissu métallique (4), de détourage dudit demi tube (5) obtenu et de réalisation de la fente (6) sont opérées simultanément. 2- A method for manufacturing a filter (1) according to claim 1, characterized in that the stamping step of the metal fabric (4), clipping said half tube (5) and obtained embodiment of the slot (6) are operated simultaneously. 3- Procédé de réalisation d'un filtre (1) selon la revendication 1 ou revendication 2, caractérisé en ce qu'il comporte en outre une étape de soudure plan de joint des deux demi-coquilles (7, 7') formant ladite paroi sensiblement verticale (2) ' fond (3). 3- A method of manufacturing a filter (1) according to claim 1 or claim 2, characterized in that it further comprises a welding step of joining plane of the two half-shells (7, 7 ') forming said wall substantially vertical (2) 'base (3). 4- Procedé de réalisation d'un filtre (1) selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'il comporte en outre une étape surmoulage, au moins, du plan de joint (9) des deux demi-coquilles (7, 7') formant ladite paroi sensiblement verticale (2) à fond (3). 4- A method of manufacturing a filter (1) according to any one of claims 1 to 3, characterized in that it further comprises an overmolding step, at least, the joint plane (9) of the two half shells (7, 7 ') forming said substantially vertical wall (2) to base (3). 5- Procedé de réalisation d'un filtre (1) selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'il comporte en outre une étape de surmoulage du bord supérieure (10) de ladite paroi sensiblement verticale (2). 5. Method of manufacturing a filter (1) according to any one of claims 1 to 4, characterized in that it further comprises an overmolding step of the upper edge (10) of said substantially vertical wall (2) . 6- Procédé de réalisation d'un filtre (1) selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'il comporte en outre une étape de surmoulage du pourtour extérieur du fond (3). 6- A method of manufacturing a filter (1) according to any one of claims 1 to 5, characterized in that it further comprises an overmolding step of the outer periphery of the base (3). 7- Filtre en tissu métallique, du type comportant une paroi sensiblement verticale (2), fond (3) et au moins un plan de symétrie vertical, réalisé par la mise en oeuvre du procédé selon l'une quelconque des revendications 1 à 6. 7- wire mesh filter, of the type comprising a substantially vertical wall (2), bottom (3) and at least one vertical plane of symmetry, produced by implementing the method according to any one of claims 1 to 6.
FR9913476A 1999-10-25 1999-10-25 A method of making a filter vertical plane of symmetry in metal and fabric filter realized by the implementation of METHOD Expired - Fee Related FR2799985B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9913476A FR2799985B1 (en) 1999-10-25 1999-10-25 A method of making a filter vertical plane of symmetry in metal and fabric filter realized by the implementation of METHOD

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9913476A FR2799985B1 (en) 1999-10-25 1999-10-25 A method of making a filter vertical plane of symmetry in metal and fabric filter realized by the implementation of METHOD

Publications (2)

Publication Number Publication Date
FR2799985A1 true true FR2799985A1 (en) 2001-04-27
FR2799985B1 FR2799985B1 (en) 2001-11-23

Family

ID=9551457

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9913476A Expired - Fee Related FR2799985B1 (en) 1999-10-25 1999-10-25 A method of making a filter vertical plane of symmetry in metal and fabric filter realized by the implementation of METHOD

Country Status (1)

Country Link
FR (1) FR2799985B1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB741918A (en) * 1951-11-19
DE2721611A1 (en) * 1977-05-13 1978-11-16 Volkswagenwerk Ag Fuel suction line strainer - made of one plastic moulding with hinge strip for two halves
US4545833A (en) * 1984-03-08 1985-10-08 Tafara Peter T Method of making a filter bag assembly
JPH0880540A (en) * 1994-09-13 1996-03-26 Dainippon Printing Co Ltd Plastic molding
US5520802A (en) * 1995-02-08 1996-05-28 Brubaker; Robert L. In-tank fuel filter for a lawnmower

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB741918A (en) * 1951-11-19
DE2721611A1 (en) * 1977-05-13 1978-11-16 Volkswagenwerk Ag Fuel suction line strainer - made of one plastic moulding with hinge strip for two halves
US4545833A (en) * 1984-03-08 1985-10-08 Tafara Peter T Method of making a filter bag assembly
JPH0880540A (en) * 1994-09-13 1996-03-26 Dainippon Printing Co Ltd Plastic molding
US5520802A (en) * 1995-02-08 1996-05-28 Brubaker; Robert L. In-tank fuel filter for a lawnmower

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 07 31 July 1996 (1996-07-31) *

Also Published As

Publication number Publication date Type
FR2799985B1 (en) 2001-11-23 grant

Similar Documents

Publication Publication Date Title
US20040135337A1 (en) Structural member for a suspension of a motor vehicle and method for its production
EP1060868A1 (en) Injection mould with integrated assembly
FR2925896A1 (en) Process for manufacturing a metal part of reinforced ceramic fibers
EP0615149A1 (en) Elastic hinge for spectacles
FR2775753A1 (en) Clamping collar for motor vehicle exhaust pipes
FR2601618A1 (en) Composite component made from respectively inner and outer mouldable materials, and method for injection moulding such a component
FR2887598A1 (en) Motor vehicle trim strip fixing clip holds strip in two positions pre-assembled and locked against support
FR2856202A1 (en) Electrical equipment e.g. interrupter, support, includes movable clamps mounted on flanges, where connected parts of flanges and frame form complementary connecting units
FR2799717A1 (en) Motor vehicle bearer element of metal and plastics is injection-molded in plastics joined to metal stiffener itself contoured to close off hollow bearer profile.
FR2659122A1 (en) Flat gasket
FR2668095A1 (en) Method for the overmoulding of at least one leakproof seal on a component, implementing tool and component fitted with such a seal
FR2623437A1 (en) Method of manufacturing a skin tube for annular foam product headrest vehicle seat and the tube assembly and a core structure
EP1217224A1 (en) Clamping device and length adjustable telescopic rod using such a clamping device
FR2664347A1 (en) clamping ring has ends joined together, in particular for fastening bellows, and this ring manufacturing process.
EP0644036A1 (en) Process for making objects from foamed polystyrene and objects thus obtained
FR2807153A1 (en) Method of attaching connector to heat exchanger tube has connector clipped onto tube and retained by welding
FR2494026A2 (en) Air gaps setting method for automobile induction coil cores - uses non-magnetic spacer with pairs of orthogonal flanges to fully interlock yoke and U-core
JP2004316786A (en) Female side structure of pipe joint and its manufacturing method
FR2710197A1 (en) Collector reported to include motor vehicle alternator.
FR2587268A1 (en) Method and apparatus for manufacturing casks and barrels
FR2532789A1 (en) Commutator for a rotating electrical machine, and its method of manufacture.
FR2755915A1 (en) Head rest for vehicle seat
EP0610108A1 (en) Crimping ring and method of making it
FR2685230A1 (en) Assembly in the form of a cluster of patterns for the consumable- (disposable-) pattern moulding of components, and method for assembling such patterns as a cluster
FR2811358A1 (en) Caisson opening system ensuring placement of connection armatures comprises first closed compartment which extends longitudinally on caisson first face

Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20060630