EP3604924A1 - Draft moderator - Google Patents

Draft moderator Download PDF

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Publication number
EP3604924A1
EP3604924A1 EP19189212.4A EP19189212A EP3604924A1 EP 3604924 A1 EP3604924 A1 EP 3604924A1 EP 19189212 A EP19189212 A EP 19189212A EP 3604924 A1 EP3604924 A1 EP 3604924A1
Authority
EP
European Patent Office
Prior art keywords
flap
counterweight
moderator
cover
shutter
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.)
Pending
Application number
EP19189212.4A
Other languages
German (de)
French (fr)
Inventor
Armando Martins Da Costa
Sylvain André Jean Vanden Born
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.)
Regulateurs Georgin
Original Assignee
Regulateurs Georgin
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 Regulateurs Georgin filed Critical Regulateurs Georgin
Publication of EP3604924A1 publication Critical patent/EP3604924A1/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L13/00—Construction of valves or dampers for controlling air supply or draught
    • F23L13/02—Construction of valves or dampers for controlling air supply or draught pivoted about a single axis but having not other movement

Definitions

  • the present invention relates to a draft moderator intended to equip a smoke evacuation duct or a heating device, such as a wood stove or an oil boiler for example.
  • the draft of a smoke exhaust duct must be adjusted to a value recommended by the manufacturer of the appliance to which the duct is connected.
  • Certain climatic conditions such as the cooling of the air in winter or a strong wind, can increase the vacuum in the duct and deteriorate the performance of the installation.
  • a draft moderator also called draft regulator
  • this assembly generally being carried out using a stainless steel tee or an equivalent material.
  • the moderator has a movable valve which reacts to the vacuum in order to open and bring in an excess of fresh air which decreases the temperature of the hearth and therefore the air draw in the hearth.
  • valve is pivotable and returned to the closed position by a counterweight.
  • the applicant company thus offers under the brand “Moderator” a draft regulator comprising a flap whose orientation of the axis of rotation can be modified relative to the horizontal to change the restoring force of the counterweight.
  • Such a device is relatively complex to produce.
  • Certain moderators are provided for a factory setting, comprising for example a counterweight set and blocked in the factory, and do not allow precise adjustment of the draft according to the specific needs of the installation.
  • Requirement FR 3 008 482 discloses a regulator comprising a counterweight located on the outside of the shutter, accessible through an access hatch.
  • the moderator according to the invention is aesthetic because the counterweight is not visible from the outside when the shutter is in the closed position.
  • the adjustment of the device can be carried out precisely, by moving the counterweight relative to the flap, without the need to modify the orientation of the axis of rotation of the flap relative to the horizontal.
  • the construction of the moderator is thus simplified.
  • the counterweight is pivotally mounted relative to the flap. This facilitates the production of the device and makes it possible to preserve the compactness thereof.
  • the moderator comprises a member for adjusting the position of the counterweight relative to the flap, accessible from the front face of the moderator.
  • access to the adjustment member is easy, and the adjustment can be carried out easily once the moderator is installed.
  • the adjusting member is preferably constituted by a latch produced by cutting in one piece with the counterweight and terminated by a gripping tab.
  • the adjustment member and the flap may thus include cooperating reliefs defining several notches for adjusting the position of the counterweight relative to the flap.
  • These cooperating reliefs comprise for example a tooth cut with the flap and successive openings made on the adjustment member, in each of which the tooth can engage and defining a corresponding immobilization position of the counterweight relative to the flap.
  • the cooperating reliefs can allow adjustment of the depression in the flue in increments of a predefined value, chosen for example between 5 and 10 Pa, preferably of the order of 5 Pa.
  • the adjustment member and the cover prefferably have reliefs which can cooperate to block the shutter in the closed position.
  • the adjustment member has a notch open laterally and the cover a corresponding tooth, which can engage in the notch to block the flap in the closed position.
  • the adjustment member has sufficient elasticity to be able to be deformable by the user in order to move the adjustment member away from the tooth produced on the flap and allow the opening which is engaged therein to be changed, as well as clear the side notch of the hood tooth to unlock the flap.
  • the notch can be made at the base of a gripping tab which is offset laterally and upward relative to the rest of the adjusting member.
  • the adjustment member is deformable by a downward push while to unlock the flap the adjustment member is manually deformable by the user exerted laterally.
  • the cover, the flap and the counterweight are made of stainless steel.
  • the moderator can be performed without additional parts.
  • the shutter may have a disc shape.
  • the flap may have a step substantially halfway up, coming to bear against the edge of cutouts formed in a front wall of the cover.
  • the counterweight may have a disc portion shape.
  • the articulation of the counterweight on the shutter can be done thanks to cuts made in the shutter.
  • the draft moderator 1 shown in the figures comprises a cover 10 on which a flap 20 is articulated so as to be able to assume an open position illustrated in the figure 1 and a closed position shown in the figure 2 .
  • the shutter 20 is equipped with a counterweight 30 which is pivotally mounted on the shutter 20 so as to allow the return force of the shutter 20 to be adjusted in the closed position.
  • the cover 10, the flap 20 and the counterweight 30 are made of stainless steel.
  • the counterweight 30 is produced with an adjustment latch 31 which has a bent shape substantially at a right angle, and which is engaged through a corresponding opening 21 of the flap 20.
  • the latch 31 is preferably, as illustrated, come in one piece with the rest of the counterweight 30 by cutting and folding a sheet of stainless steel.
  • the latch 31 has on its distal portion 32 engaged through the opening 21 a series of adjustment openings 33, preferably equidistant as illustrated.
  • the latch 31 ends with a gripping tab 34 which can be grasped by a person to move it through the opening 21 of the flap 20, in order to modify the setting for example.
  • the tab 34 is slightly offset on the left side and upwards, as can be seen on the figure 3 , and has on this side a lateral notch 35.
  • the opening 21 of the flap 20 is provided on its upper edge with a tooth 23 which is arranged to engage in the opening 33 which is chosen for the adjustment of the counterweight.
  • the latch 21 has sufficient flexibility to allow the user to flex it down, as illustrated by the arrow F on the figure 6 , to modify the adjustment of the counterweight 30.
  • the latch 21 is returned by its own elasticity upwards to come into abutment against the upper edge of the opening 21.
  • the counterweight 30 is more or less pivoted backwards and thus exerts a more or less large restoring force on the flap to return it to the closed position.
  • the distal portion 32 of the latch has an arcuate shape whose axis of curvature corresponds substantially to the axis of rotation of the counterweight 30 on the flap 20.
  • the notch 35 makes it possible to block the flap in the closed position by engaging on a tooth 12 of the cover 10 as illustrated in the figure 7 .
  • a ramp 36 is provided to cause the notch to automatically snap into tooth 12 when the latch is pushed against the front face 15 of the cover 10. In the locking position, the notch engages both on the flap 20 and the tooth 12, and thus blocks the pivoting of the flap 20.
  • the latch 21 is returned by elasticity in a position where the notch 35 remains engaged on the tooth 12.
  • the user moves the latch to the right on the figure 3 , to release the notch 35. It can then pull on the latch 21 to bring one of the openings opposite the tooth 23 in order to engage it.
  • the latch has sufficient flexibility to allow these movements.
  • the shutter 20 has a recess 26, which is preferably oriented horizontally when the moderator 1 is placed.
  • the lower part 27 of the shutter 20, located under the recess 26, is applied against the rear face 13 of the cover 10 while the upper part 28 is applied against the front face 14, when the shutter is closed.
  • the upper part 28 is offset forward relative to the lower part 27.
  • the articulation of the counterweight 30 on the flap 20 can be carried out without additional part thanks to lugs 36 produced at the lateral ends of the counterweight 30, at its base, cooperating with lugs 29 produced on the flap 20.
  • the articulation of the flap 20 on the cover 10 can be effected by diametrically opposite lugs formed on the edge of the opening of the front face of the cover, on which the recess 26 comes to bear.
  • the shutter 20 is produced with stops 40 which are formed by cutting and which are deformed after the shutter 20 has been placed on the cover 10 to ensure that it is held on the latter.
  • the flap and the counterweight can be cut from a stainless steel sheet.
  • the cover can be produced by cutting and stamping.
  • the latch 21 is formed by folding.
  • the counterweight can be assembled on the flap by engaging the tabs 36 of the counterweight behind the tabs 29 of the flap 20 and then bending them at right angles.
  • the flap 20 can be engaged in the opening of the cover until the recess 26 stops against the corresponding lugs of the cover.
  • the contact of the flap 20 in the closed position on the cover 10 can be metal on metal, and the sealing proves satisfactory.
  • the cover 10 may have, as illustrated, diametrically opposite fixing holes, making it possible to fix the moderator on a tee connection for example or at the end of a chimney flue.
  • a flexible seal can be mounted on the hood and / or the flap.
  • This seal has for example a U-shaped section to engage the edge of the cover sheet or flap.
  • the adjusting member can be made differently, as can the counterweight.
  • the adjustment member comprises a rotary handle driving a cam which allows the counterweight to be moved more or less inside the device.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Lasers (AREA)

Abstract

La présente invention concerne un modérateur de tirage (1), comportant :- un capot (10),- un volet (20) mobile par rapport au capot (10), pouvant prendre une position fermée et une position ouverte d'admission d'air,- un contrepoids (30) pour rappeler le volet (20) en position fermée, disposé du côté intérieur du volet, mobile par rapport au volet de façon à permettre un réglage du couple de rappel de celui-ci en position fermée.The present invention relates to a draft moderator (1), comprising: - a cover (10), - a flap (20) movable relative to the cover (10), capable of assuming a closed position and an open position for admission of air, - a counterweight (30) for returning the shutter (20) to the closed position, disposed on the inside of the shutter, movable relative to the shutter so as to allow adjustment of the return torque of the latter in the closed position.

Description

La présente invention concerne un modérateur de tirage destiné à équiper un conduit d'évacuation de fumées ou un appareil de chauffage, tel qu'un poêle à bois ou une chaudière à mazout par exemple.The present invention relates to a draft moderator intended to equip a smoke evacuation duct or a heating device, such as a wood stove or an oil boiler for example.

Le tirage d'un conduit d'évacuation de fumées doit être ajusté à une valeur préconisée par le fabricant de l'appareil auquel le conduit est raccordé.The draft of a smoke exhaust duct must be adjusted to a value recommended by the manufacturer of the appliance to which the duct is connected.

Certaines conditions climatiques telles que le refroidissement de l'air en hiver ou un vent fort, peuvent accroître la dépression dans le conduit et détériorer le rendement de l'installation.Certain climatic conditions such as the cooling of the air in winter or a strong wind, can increase the vacuum in the duct and deteriorate the performance of the installation.

Pour compenser cette dépression, il est connu de placer sur le conduit un modérateur de tirage, encore appelé régulateur de tirage, ce montage s'effectuant généralement à l'aide d'un té en acier inoxydable ou en une matière équivalente. Le modérateur comporte un clapet mobile qui réagit à la dépression pour s'ouvrir et apporter un surplus d'air frais qui diminue la température du foyer et donc l'appel d'air dans le foyer.To compensate for this depression, it is known to place a draft moderator, also called draft regulator, on the duct, this assembly generally being carried out using a stainless steel tee or an equivalent material. The moderator has a movable valve which reacts to the vacuum in order to open and bring in an excess of fresh air which decreases the temperature of the hearth and therefore the air draw in the hearth.

Généralement, le clapet est pivotant et ramené en position de fermeture par un contrepoids.Generally, the valve is pivotable and returned to the closed position by a counterweight.

Divers mécanismes ont été proposés pour permettre de régler la force de rappel du clapet en position fermée afin de faire entrer plus ou moins d'air pour une dépression donnée.Various mechanisms have been proposed to enable the return force of the valve to be adjusted in the closed position in order to bring in more or less air for a given vacuum.

La société déposante propose ainsi sous la marque « Moderator » un régulateur de tirage comportant un volet dont l'orientation de l'axe de rotation peut être modifiée par rapport à l'horizontale pour changer la force de rappel du contrepoids.The applicant company thus offers under the brand “Moderator” a draft regulator comprising a flap whose orientation of the axis of rotation can be modified relative to the horizontal to change the restoring force of the counterweight.

Un tel dispositif est relativement complexe à réaliser.Such a device is relatively complex to produce.

D'autres modérateurs connus présentent un contrepoids apparent, situé du côté de la face avant du volet, pouvant se déplacer sur une vis de réglage. De tels dispositifs peuvent s'avérer insuffisamment esthétiques pour équiper des appareils de chauffage installés dans des pièces d'habitation, tels que des poêles à bois.Other known moderators have an apparent counterweight, located on the side of the front face of the flap, which can move on an adjustment screw. Such devices may prove to be insufficiently aesthetic to equip heating appliances installed in living rooms, such as wood stoves.

Certains modérateurs sont prévus pour un réglage usine, comportant par exemple un contrepoids réglé et bloqué en usine, et ne permettent pas de régler précisément le tirage en fonction des besoins spécifiques de l'installation.Certain moderators are provided for a factory setting, comprising for example a counterweight set and blocked in the factory, and do not allow precise adjustment of the draft according to the specific needs of the installation.

La demande FR 3 008 482 divulgue un régulateur comportant un contre-poids situé du côté extérieur du volet, accessible au travers d'une trappe d'accès.Requirement FR 3 008 482 discloses a regulator comprising a counterweight located on the outside of the shutter, accessible through an access hatch.

Il existe par conséquent un besoin pour perfectionner encore les modérateurs de tirage et bénéficier d'un dispositif qui soit à la fois facile à fabriquer, en acier inoxydable notamment, robuste, permettant un réglage précis de la force de rappel et esthétique.There is therefore a need to further perfect the draft moderators and benefit from a device which is both easy to manufacture, in particular stainless steel, robust, allowing precise adjustment of the restoring force and aesthetics.

L'invention répond à ces objectifs en proposant un modérateur de tirage comportant :

  • un capot,
  • un volet mobile par rapport au capot, pouvant prendre une position fermée et une position ouverte d'admission d'air,
  • un contrepoids pour rappeler le volet en position fermée, disposé du côté intérieur du volet, mobile par rapport au volet de façon à permettre un réglage du couple de rappel de celui-ci en position fermée.
The invention meets these objectives by proposing a draw moderator comprising:
  • a cap,
  • a flap movable relative to the cover, which can take a closed position and an open position for air intake,
  • a counterweight for returning the shutter to the closed position, disposed on the inside of the shutter, movable relative to the shutter so as to allow adjustment of the return torque of the latter in the closed position.

Le modérateur selon l'invention est esthétique car le contrepoids n'est pas visible de l'extérieur lorsque le volet est en position fermée.The moderator according to the invention is aesthetic because the counterweight is not visible from the outside when the shutter is in the closed position.

Le réglage du dispositif peut s'effectuer précisément, en déplaçant le contrepoids relativement au volet, sans avoir besoin de modifier l'orientation de l'axe de rotation du volet par rapport à l'horizontale. La construction du modérateur est ainsi simplifiée.The adjustment of the device can be carried out precisely, by moving the counterweight relative to the flap, without the need to modify the orientation of the axis of rotation of the flap relative to the horizontal. The construction of the moderator is thus simplified.

De préférence, le contrepoids est monté de façon pivotante par rapport au volet. Cela facilite la réalisation du dispositif et permet de préserver la compacité de celui-ci.Preferably, the counterweight is pivotally mounted relative to the flap. This facilitates the production of the device and makes it possible to preserve the compactness thereof.

De préférence, le modérateur comporte un organe de réglage de la position du contrepoids relativement au volet, accessible depuis la face avant du modérateur. Ainsi, l'accès à l'organe de réglage est aisé, et le réglage peut s'effectuer facilement une fois le modérateur installé. Il est notamment possible de modifier aisément le réglage au cours de l'année, pour tenir compte par exemple de conditions de fonctionnement particulières, ou du remplacement d'un appareil de chauffage par un nouveau. L'organe de réglage est de préférence constitué par un loquet réalisé par découpage d'une seule pièce avec le contrepoids et terminé par une patte de préhension.Preferably, the moderator comprises a member for adjusting the position of the counterweight relative to the flap, accessible from the front face of the moderator. Thus, access to the adjustment member is easy, and the adjustment can be carried out easily once the moderator is installed. In particular, it is possible to easily change the setting during the year, for example to take account of specific operating conditions, or to replace a heating device with a new one. The adjusting member is preferably constituted by a latch produced by cutting in one piece with the counterweight and terminated by a gripping tab.

Il est particulièrement avantageux que l'organe de réglage traverse une ouverture du volet. Cela permet de gagner en simplicité et en compacité. En particulier, cela peut permettre d'utiliser l'ouverture du volet pour bloquer l'organe de réglage dans la position souhaitée. L'organe de réglage et le volet peuvent ainsi comporter des reliefs coopérants définissant plusieurs crans de réglage de la position du contrepoids relativement au volet. Ces reliefs coopérants comportent par exemple une dent découpée avec le volet et des ouvertures successives ménagées sur l'organe de réglage, dans chacune desquelles la dent peut s'engager et définissant une position d'immobilisation correspondante du contrepoids par rapport au volet. Les reliefs coopérants peuvent permettre un réglage de la dépression dans le conduit de fumée par incréments d'une valeur prédéfinie, choisie par exemple entre 5 et 10 Pa, de préférence de l'ordre de 5 Pa.It is particularly advantageous for the adjustment member to pass through an opening in the flap. This allows to gain simplicity and compactness. In particular, this can allow the opening of the shutter to be used to block the adjustment member in the desired position. The adjustment member and the flap may thus include cooperating reliefs defining several notches for adjusting the position of the counterweight relative to the flap. These cooperating reliefs comprise for example a tooth cut with the flap and successive openings made on the adjustment member, in each of which the tooth can engage and defining a corresponding immobilization position of the counterweight relative to the flap. The cooperating reliefs can allow adjustment of the depression in the flue in increments of a predefined value, chosen for example between 5 and 10 Pa, preferably of the order of 5 Pa.

Il est également avantageux que l'organe de réglage et le capot présentent des reliefs pouvant coopérer pour bloquer le volet en position fermée. Par exemple, l'organe de réglage présente une encoche ouverte latéralement et le capot une dent correspondante, pouvant s'engager dans l'encoche pour bloquer le volet en position fermée.It is also advantageous for the adjustment member and the cover to have reliefs which can cooperate to block the shutter in the closed position. For example, the adjustment member has a notch open laterally and the cover a corresponding tooth, which can engage in the notch to block the flap in the closed position.

De préférence, l'organe de réglage présente une élasticité suffisante pour pouvoir être déformable par l'utilisateur afin d'éloigner l'organe de réglage de la dent réalisée sur le volet et permettre de changer d'ouverture qui y est engagée, ainsi que de dégager l'encoche latérale de la dent du capot pour déverrouiller le volet. L'encoche peut être réalisée à la base d'une patte de préhension qui est décalée latéralement et vers le haut par rapport au reste de l'organe de réglage. Ainsi, dans un exemple de mise en oeuvre, pour modifier le réglage, l'organe de réglage est déformable par une poussée exercée vers le bas tandis que pour déverrouiller le volet l'organe de réglage est déformable manuellement par l'utilisateur par une poussée exercée latéralement.Preferably, the adjustment member has sufficient elasticity to be able to be deformable by the user in order to move the adjustment member away from the tooth produced on the flap and allow the opening which is engaged therein to be changed, as well as clear the side notch of the hood tooth to unlock the flap. The notch can be made at the base of a gripping tab which is offset laterally and upward relative to the rest of the adjusting member. Thus, in an exemplary implementation, to modify the adjustment, the adjustment member is deformable by a downward push while to unlock the flap the adjustment member is manually deformable by the user exerted laterally.

De préférence, le capot, le volet et le contrepoids sont réalisés en acier inoxydable. Le modérateur peut être réalisé sans pièce supplémentaire.Preferably, the cover, the flap and the counterweight are made of stainless steel. The moderator can be performed without additional parts.

Le volet peut présenter une forme de disque.The shutter may have a disc shape.

Le volet peut présenter un décrochement sensiblement à mi-hauteur, venant en appui contre le bord de découpes formées dans une paroi frontale du capot.The flap may have a step substantially halfway up, coming to bear against the edge of cutouts formed in a front wall of the cover.

Le contrepoids peut présenter une forme de portion de disque. L'articulation du contrepoids sur le volet peut se faire grâce à des découpes réalisées dans le volet.The counterweight may have a disc portion shape. The articulation of the counterweight on the shutter can be done thanks to cuts made in the shutter.

L'invention pourra être mieux comprise à la lecture de la description qui va suivre, d'un exemple non limitatif de mise en oeuvre de celle-ci, et à l'examen du dessin annexé, sur lequel :

  • la figure 1 représente de façon schématique en perspective avant un modérateur de tirage réalisé conformément à l'invention, le volet étant représenté en position ouverte,
  • la figure 2 est une vue en perspective arrière du modérateur de la figure 1, le volet étant représenté en position fermée,
  • la figure 3 représente le détail III de la figure 1,
  • la figure 4 est une vue arrière du modérateur,
  • la figure 5 est une coupe axiale selon V-V de la figure 4,
  • la figure 6 représente le détail VI de la figure 5,
  • la figure 7 illustre le verrouillage du volet en position fermée,
  • la figure 8 représente le détail VIII de la figure 5,
  • la figure 9 est une vue arrière du modérateur, le volet étant fermé,
  • la figure 10 est une coupe selon X-X de la figure 9,
  • la figure 11 représente le détail XI de la figure 10,
  • la figure 12 est une vue en perspective du modérateur, le volet étant représenté en position ouverte, et
  • la figure 13 représente un détail de la figure 12.
The invention will be better understood on reading the description which follows, of a nonlimiting example of implementation thereof, and on examining the appended drawing, in which:
  • the figure 1 shows schematically in perspective before a draft moderator produced in accordance with the invention, the flap being shown in the open position,
  • the figure 2 is a rear perspective view of the moderator of the figure 1 , the flap being shown in the closed position,
  • the figure 3 represents detail III of the figure 1 ,
  • the figure 4 is a rear view of the moderator,
  • the figure 5 is an axial section according to VV of the figure 4 ,
  • the figure 6 represents detail VI of the figure 5 ,
  • the figure 7 illustrates the locking of the shutter in the closed position,
  • the figure 8 represents detail VIII of the figure 5 ,
  • the figure 9 is a rear view of the moderator, the shutter being closed,
  • the figure 10 is a section along XX of the figure 9 ,
  • the figure 11 represents detail XI of the figure 10 ,
  • the figure 12 is a perspective view of the moderator, the flap being shown in the open position, and
  • the figure 13 represents a detail of the figure 12 .

Le modérateur de tirage 1 représenté sur les figures comporte un capot 10 sur lequel est articulé un volet 20 de façon à pouvoir prendre une position ouverte illustrée à la figure 1 et une position fermée représentée à la figure 2.The draft moderator 1 shown in the figures comprises a cover 10 on which a flap 20 is articulated so as to be able to assume an open position illustrated in the figure 1 and a closed position shown in the figure 2 .

Le volet 20 est équipé d'un contrepoids 30 qui est monté pivotant sur le volet 20 de façon à permettre de régler la force de rappel du volet 20 en position fermée.The shutter 20 is equipped with a counterweight 30 which is pivotally mounted on the shutter 20 so as to allow the return force of the shutter 20 to be adjusted in the closed position.

Dans l'exemple considéré, le capot 10, le volet 20 et le contrepoids 30 sont réalisés en acier inoxydable.In the example considered, the cover 10, the flap 20 and the counterweight 30 are made of stainless steel.

Comme on peut le voir sur la figure 4 notamment, le contrepoids 30 est réalisé avec un loquet de réglage 31 qui présente une forme coudée sensiblement à angle droit, et qui est engagé à travers une ouverture correspondante 21 du volet 20.As we can see on the figure 4 in particular, the counterweight 30 is produced with an adjustment latch 31 which has a bent shape substantially at a right angle, and which is engaged through a corresponding opening 21 of the flap 20.

Le loquet 31 est de préférence, comme illustré, venu d'une seule pièce avec le reste du contrepoids 30 par découpe et pliage d'une tôle d'acier inoxydable.The latch 31 is preferably, as illustrated, come in one piece with the rest of the counterweight 30 by cutting and folding a sheet of stainless steel.

Le loquet 31 présente sur sa portion distale 32 engagée à travers l'ouverture 21 une série d'ouvertures de réglage 33, de préférence équidistantes comme illustré.The latch 31 has on its distal portion 32 engaged through the opening 21 a series of adjustment openings 33, preferably equidistant as illustrated.

Le loquet 31 se termine par une patte de préhension 34 qui peut être saisie par une personne pour le déplacer à travers l'ouverture 21 du volet 20, afin de modifier le réglage par exemple.The latch 31 ends with a gripping tab 34 which can be grasped by a person to move it through the opening 21 of the flap 20, in order to modify the setting for example.

La patte 34 est légèrement décalée sur le côté gauche et vers le haut, comme on peut le voir sur la figure 3, et présente sur ce côté une encoche latérale 35.The tab 34 is slightly offset on the left side and upwards, as can be seen on the figure 3 , and has on this side a lateral notch 35.

L'ouverture 21 du volet 20 est munie sur son bord supérieur d'une dent 23 qui est agencée pour s'engager dans l'ouverture 33 qui est choisie pour le réglage du contrepoids.The opening 21 of the flap 20 is provided on its upper edge with a tooth 23 which is arranged to engage in the opening 33 which is chosen for the adjustment of the counterweight.

Le loquet 21 présente une flexibilité suffisante pour permettre à l'utilisateur de le faire fléchir vers le bas, comme illustré par la flèche F sur la figure 6, pour modifier le réglage du contrepoids 30. Le loquet 21 est rappelé par élasticité propre vers le haut pour venir en appui contre le bord supérieur de l'ouverture 21.The latch 21 has sufficient flexibility to allow the user to flex it down, as illustrated by the arrow F on the figure 6 , to modify the adjustment of the counterweight 30. The latch 21 is returned by its own elasticity upwards to come into abutment against the upper edge of the opening 21.

En fonction de l'ouverture 33 dans laquelle est engagée la dent 23, le contrepoids 30 est plus ou moins pivoté vers l'arrière et exerce ainsi une force de rappel plus ou moins grande sur le volet pour le ramener en position de fermeture. On peut ainsi régler la dépression à laquelle réagit le modérateur, par exemple dans la plage 5 à 40 Pa.Depending on the opening 33 in which the tooth 23 is engaged, the counterweight 30 is more or less pivoted backwards and thus exerts a more or less large restoring force on the flap to return it to the closed position. We can thus adjust the vacuum to which the moderator reacts, for example in the range 5 to 40 Pa.

La portion distale 32 du loquet présente une forme arquée dont l'axe de courbure correspond sensiblement à l'axe de rotation du contrepoids 30 sur le volet 20.The distal portion 32 of the latch has an arcuate shape whose axis of curvature corresponds substantially to the axis of rotation of the counterweight 30 on the flap 20.

L'encoche 35 permet de bloquer le volet en position fermée en venant s'engager sur une dent 12 du capot 10 comme illustré à la figure 7. Une rampe 36 est prévue pour amener l'encoche à s'encliqueter automatiquement dans la dent 12 quand le loquet est poussé contre la face avant 15 du capot 10. En position de verrouillage, l'encoche s'engage à la fois sur le volet 20 et la dent 12, et bloque ainsi le pivotement du volet 20.The notch 35 makes it possible to block the flap in the closed position by engaging on a tooth 12 of the cover 10 as illustrated in the figure 7 . A ramp 36 is provided to cause the notch to automatically snap into tooth 12 when the latch is pushed against the front face 15 of the cover 10. In the locking position, the notch engages both on the flap 20 and the tooth 12, and thus blocks the pivoting of the flap 20.

Le loquet 21 est rappelé par élasticité dans une position où l'encoche 35 reste engagée sur la dent 12. Pour déverrouiller le loquet 21, l'utilisateur déplace le loquet vers la droite sur la figure 3, pour dégager l'encoche 35. Il peut tirer ensuite sur le loquet 21 pour amener l'une des ouvertures en regard de la dent 23 afin de l'y engager. Le loquet présente une flexibilité suffisante pour permettre ces mouvements.The latch 21 is returned by elasticity in a position where the notch 35 remains engaged on the tooth 12. To unlock the latch 21, the user moves the latch to the right on the figure 3 , to release the notch 35. It can then pull on the latch 21 to bring one of the openings opposite the tooth 23 in order to engage it. The latch has sufficient flexibility to allow these movements.

Le volet 20 présente un décrochement 26, qui est de préférence orienté horizontalement lorsque le modérateur 1 est posé.The shutter 20 has a recess 26, which is preferably oriented horizontally when the moderator 1 is placed.

La partie basse 27 du volet 20, située sous le décrochement 26, vient s'appliquer contre la face arrière 13 du capot 10 tandis que la partie haute 28 vient s'appliquer contre la face avant 14, lorsque le volet est fermé. La partie haute 28 est décalée vers l'avant par rapport à la partie basse 27.The lower part 27 of the shutter 20, located under the recess 26, is applied against the rear face 13 of the cover 10 while the upper part 28 is applied against the front face 14, when the shutter is closed. The upper part 28 is offset forward relative to the lower part 27.

L'articulation du contrepoids 30 sur le volet 20 peut être réalisée sans pièce additionnelle grâce à des pattes 36 réalisées aux extrémités latérales du contrepoids 30, à sa base, coopérant avec des pattes 29 réalisées sur le volet 20.The articulation of the counterweight 30 on the flap 20 can be carried out without additional part thanks to lugs 36 produced at the lateral ends of the counterweight 30, at its base, cooperating with lugs 29 produced on the flap 20.

L'articulation du volet 20 sur le capot 10 peut s'effectuer grâce à des ergots diamétralement opposés réalisés sur le bord de l'ouverture de la face avant du capot, sur lesquels le décrochement 26 vient en appui. Le volet 20 est réalisé avec des butées 40 qui sont formées par découpe et qui sont déformées après mise en place du volet 20 sur le capot 10 pour assurer son maintien sur ce dernier.The articulation of the flap 20 on the cover 10 can be effected by diametrically opposite lugs formed on the edge of the opening of the front face of the cover, on which the recess 26 comes to bear. The shutter 20 is produced with stops 40 which are formed by cutting and which are deformed after the shutter 20 has been placed on the cover 10 to ensure that it is held on the latter.

Pour fabriquer le modérateur 1, on peut découper le volet et le contrepoids dans une tôle en acier inoxydable. Le capot peut être réalisé par découpe et emboutissage. Le loquet 21 est formé par pliage.To make moderator 1, the flap and the counterweight can be cut from a stainless steel sheet. The cover can be produced by cutting and stamping. The latch 21 is formed by folding.

Le contrepoids peut être assemblé sur le volet en engageant les pattes 36 du contrepoids derrière les pattes 29 du volet 20 puis en les coudant à angle droit.The counterweight can be assembled on the flap by engaging the tabs 36 of the counterweight behind the tabs 29 of the flap 20 and then bending them at right angles.

Ensuite, le volet 20 peut être engagé dans l'ouverture du capot jusqu'à butée du décrochement 26 contre les ergots correspondants du capot.Then, the flap 20 can be engaged in the opening of the cover until the recess 26 stops against the corresponding lugs of the cover.

Le contact du volet 20 en position fermée sur le capot 10 peut être métal sur métal, et l'étanchéité s'avère satisfaisante.The contact of the flap 20 in the closed position on the cover 10 can be metal on metal, and the sealing proves satisfactory.

Le capot 10 peut présenter, comme illustré, des trous de fixation diamétralement opposés, permettant de fixer le modérateur sur un raccord en té par exemple ou à l'extrémité d'un conduit de cheminée.The cover 10 may have, as illustrated, diametrically opposite fixing holes, making it possible to fix the moderator on a tee connection for example or at the end of a chimney flue.

Bien entendu, l'invention n'est pas limitée à l'exemple illustré. Par exemple, si nécessaire, un joint souple peut être monté sur le capot et/ou le volet. Ce joint présente par exemple un profil en U en section pour s'engager sur le bord de la tôle du capot ou du volet.Of course, the invention is not limited to the example illustrated. For example, if necessary, a flexible seal can be mounted on the hood and / or the flap. This seal has for example a U-shaped section to engage the edge of the cover sheet or flap.

L'organe de réglage peut être réalisé différemment, de même que le contrepoids. Par exemple, l'organe de réglage comporte une poignée rotative entraînant une came qui permet de reculer plus ou moins le contrepoids à l'intérieur du dispositif.The adjusting member can be made differently, as can the counterweight. For example, the adjustment member comprises a rotary handle driving a cam which allows the counterweight to be moved more or less inside the device.

Claims (11)

Modérateur de tirage (1), comportant : - un capot (10), - un volet (20) mobile par rapport au capot (10), pouvant prendre une position fermée et une position ouverte d'admission d'air, - un contrepoids (30) pour rappeler le volet (20) en position fermée, disposé du côté intérieur du volet, mobile par rapport au volet de façon à permettre un réglage du couple de rappel de celui-ci en position fermée, le contrepoids (30) étant monté de façon pivotante par rapport au volet (20).Draft moderator (1), comprising: - a cover (10), - a flap (20) movable relative to the cover (10), which can take a closed position and an open position for air intake, a counterweight (30) for returning the shutter (20) to the closed position, disposed on the inside of the shutter, movable relative to the shutter so as to allow adjustment of the return torque of the latter in the closed position, the counterweight (30) being pivotally mounted relative to the flap (20). Modérateur selon la revendication 1, comportant un organe de réglage (31) de la position du contrepoids (30) relativement au volet, accessible depuis la face avant du modérateur.Moderator according to claim 1, comprising a member (31) for adjusting the position of the counterweight (30) relative to the flap, accessible from the front face of the moderator. Modérateur selon la revendication 2, l'organe de réglage (31) traversant une ouverture (21) du volet (20).Moderator according to claim 2, the adjusting member (31) passing through an opening (21) of the flap (20). Modérateur selon l'une des revendications 2 et 3, l'organe de réglage (31) et le volet (20) comportant des reliefs coopérants (23, 33) définissant plusieurs crans de réglage de la position du contrepoids (30) relativement au volet (20).Moderator according to one of claims 2 and 3, the adjustment member (31) and the flap (20) comprising cooperating reliefs (23, 33) defining several notches for adjusting the position of the counterweight (30) relative to the flap (20). Modérateur selon la revendication 4, les reliefs coopérants comportant une dent (23) découpée avec le volet (20) et des ouvertures successives (33) ménagées sur l'organe de réglage, dans chacune desquelles la dent (23) peut s'engager et définissant une position correspondante du contrepoids par rapport au volet.Moderator according to claim 4, the cooperating reliefs comprising a tooth (23) cut out with the flap (20) and successive openings (33) formed on the adjusting member, in each of which the tooth (23) can engage and defining a corresponding position of the counterweight with respect to the flap. Modérateur selon l'une quelconque des revendications 2 à 5, l'organe de réglage (31) et le capot (10) présentant des reliefs (35, 12) pouvant coopérer pour bloquer le volet (20) en position fermée.Moderator according to any one of claims 2 to 5, the adjustment member (31) and the cover (10) having reliefs (35, 12) capable of cooperating to block the flap (20) in the closed position. Modérateur selon la revendication 6, l'organe de réglage présentant une encoche (35) ouverte latéralement et le capot (10) une dent (12) correspondante, pouvant s'engager dans l'encoche pour bloquer le volet en position fermée.Moderator according to claim 6, the adjusting member having a notch (35) open laterally and the cover (10) a tooth (12) corresponding, which can engage in the notch to block the shutter in the closed position. Modérateur selon l'une quelconque des revendications précédentes, le capot, le volet et le contrepoids étant réalisés en acier inoxydable.Moderator according to any one of the preceding claims, the cover, the flap and the counterweight being made of stainless steel. Modérateur selon l'une quelconque des revendications précédentes, le volet (20) présentant une forme de disque.Moderator according to any one of the preceding claims, the flap (20) having a disc shape. Modérateur selon la revendication 9, le volet (20) présentant un décrochement (26) sensiblement à mi-hauteur et venant en appui par ce décrochement contre le bord de découpes formées dans une paroi frontale (15) du capot.Moderator according to claim 9, the flap (20) having a recess (26) substantially halfway up and coming to bear by this recess against the edge of cutouts formed in a front wall (15) of the cover. Modérateur selon l'une quelconque des revendications précédentes, le contrepoids (30) présentant une forme de portion de disque.Moderator according to any one of the preceding claims, the counterweight (30) having the shape of a disc portion.
EP19189212.4A 2018-07-31 2019-07-30 Draft moderator Pending EP3604924A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1857146A FR3084730B1 (en) 2018-07-31 2018-07-31 DRAFT MODERATOR

Publications (1)

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EP3604924A1 true EP3604924A1 (en) 2020-02-05

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ID=63579487

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19189212.4A Pending EP3604924A1 (en) 2018-07-31 2019-07-30 Draft moderator

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EP (1) EP3604924A1 (en)
FR (1) FR3084730B1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2346559A (en) * 1942-04-27 1944-04-11 Hotstream Heater Co Draft regulator
US2416765A (en) * 1944-06-30 1947-03-04 Motor Wheel Corp Draft regulator
FR1445196A (en) * 1965-08-23 1966-07-08 Draft regulator
US3311302A (en) * 1965-03-01 1967-03-28 Danzer Metal Works Co Two-way damper with adjustable sensitivity
DE8914882U1 (en) * 1989-12-20 1990-03-01 W Oe M A Oel- Und Gasfeuerungsbedarf Gmbh & Co. Kg, 7000 Stuttgart, De
US20130149955A1 (en) * 2011-12-13 2013-06-13 Ronald E. Jackson Barometric relief air zone damper
FR3008482A1 (en) 2013-07-12 2015-01-16 Poujoulat IMPROVEMENT IN HEATING INSTALLATIONS WITH SMOKE EXHAUST DUCT PROVIDED WITH A COMBUSTION AIR INLET

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2346559A (en) * 1942-04-27 1944-04-11 Hotstream Heater Co Draft regulator
US2416765A (en) * 1944-06-30 1947-03-04 Motor Wheel Corp Draft regulator
US3311302A (en) * 1965-03-01 1967-03-28 Danzer Metal Works Co Two-way damper with adjustable sensitivity
FR1445196A (en) * 1965-08-23 1966-07-08 Draft regulator
DE8914882U1 (en) * 1989-12-20 1990-03-01 W Oe M A Oel- Und Gasfeuerungsbedarf Gmbh & Co. Kg, 7000 Stuttgart, De
US20130149955A1 (en) * 2011-12-13 2013-06-13 Ronald E. Jackson Barometric relief air zone damper
FR3008482A1 (en) 2013-07-12 2015-01-16 Poujoulat IMPROVEMENT IN HEATING INSTALLATIONS WITH SMOKE EXHAUST DUCT PROVIDED WITH A COMBUSTION AIR INLET

Also Published As

Publication number Publication date
FR3084730B1 (en) 2020-12-25
FR3084730A1 (en) 2020-02-07

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