FR2807094A1 - Fire door has intumescent material inserted between lock cassette and door panel mortise - Google Patents

Abstract

To reduce the zone of vulnerability to the passage of flames an intumescent material (8) is inserted between the lock cassette and the mortise (6) of a door panel (1). Independent claims are also included for the lock cassette, and the mounting method for the lock cassette.

Description

Fire door.

The invention relates to the field of combating the spread of fires in buildings. More specifically, the invention relates to fire doors, in particular those which have a closing device and / or locking.

 In terms of fire safety, it is, of course, necessary to offer very effective protections, which means that the standards are very stringent These standards may have different requirements depending on the country in which they are in force.

The requirements, and therefore the criteria for approval, include, in particular, the duration of the thermal insulation and the duration (the resistance during the passage (the flames of the gases and hot gases, which the products or installations employing them provide.

Fire doors are widely available on the market. Particular fire-fighting elements are conventionally used at the level (the structures (the panels (the doors, the locks, the intumescent materials arranged around the door or in the partitions art neighborhood). the doors.

While being in conformity with the current French standards, that is to say by providing a thermal protection and titi retardation passed the flames during titi lapse (the time complies with the normative requirements, the inventor ob ober, In addition to the protection period in which the products are designed, the flames are initially passed almost systematically at the level of the device (lock and lock). door.

The present arrangements therefore have a zone of fire vulnerability after a certain time of exposure to flames. Accordingly, the object of the invention is in particular to overcome this disadvantage (as in the prior art).

More specifically, the invention aims in particular to provide a fire door which extends the opposition time to flame spreading bed. Another objective of the invention is to allow it to be manufactured and titrated simply and inexpensively for such doors.

The invention also aims to provide a door that meets the most stringent requirements for holliologation against fire.

These objectives, as well as others which will appear thereafter, are achieved by means of a fire door comprising a panel provided with a mortise and a closing cassette and / or (the lock enihoîtée in said mortise According to the invention, an intumescent material is interposed between said panel and said cassette.

This provision is particularly aimed at the area of -vulnerability to fire previously used. Specific tests highlighting fire propagation phenomena demonstrate that the passage of flames observed after the conventional resistors, between the closing and / or locking cassette and the panel (the door, is thus effectively delayed.

According to an advantageous solution, said intumescent material is in the form of the strip, but the material used may be applied in other forms, for example by giving it a useful hairy consistency, and preferably said intumescent material is applied opposite the three sides. (The said cassette intended to be introduced into said mortise. passage (the flanges is thus delayed on completeness (the area concerned, without it is necessary to apply more key material.

The invention also relates to a closure cassette and / or locking, an intumescent material being reported less at the edges of said cassette to be introduced into a mortise formed for this purpose in titi door panel. The intumescent material can in fact be applied inside the mortise before insertion of the cassette (the closure and / or locking, or, conversely, be applied to the cassette before its introduction into the mortise. method of mounting a lock cassette and / or lock in the panel of a fire door comprising the steps of - inserting said intumescent material into said mortise and / or having said intumescent material has less star edges said cassette intended to be introduced into said mortise - set up said cassette in said mortise - fix said cassette in said panel.

Other features and advantages of the invention will appear more clearly on reading the following description of two preferred embodiments of the invention, given by way of non-limiting and illustrative examples, and 1 is an example of a fire door, FIG. 1 shows an application of an intumescent material in a door panel according to the prior art, the fibtires 3a and 3b show a cassette of FIG. closing and / or locking bolt intumescent intumescent intuition according to the invention; - Figures 4a and 4b show a mortise tin cotipe-feti door panel potiry intumescent material according to the invention - the fireire 5 is a thin cassette (the closure and / oti (the latch mounted in a panel mortise (cotipe-feti door according to the invention.

The general principle of the invention is therefore based on reducing the viability of the closing block and / or locking of a cotipe-feti door, which is the most vulnerable area.

The cotipe-feti doors are generally referred to as the type shown in FIG. 1. In the prior art (FIG. 2), it is customary to place an intumescent gasket 3 on the edges of the panel 1 (the door, so as to delay the passage of the flames between the panel <B> 1 </ B> and the door frame 2. To do this, titi material (bed type fntumex (registered trademark) is in an expanded form and provides a hard and stable layer which prevents the spread of fire, fumes and hot gases.

The assemblies (the closure and / or (locking as illustrated in FIGS. 3a and 3b) conventionally consist of a cassette 4 and a cover 5, the cassette 4 integrating the mechanisms (the closure and possibly locking .

Panel I of the door comprises a mortise 6 sized to receive the cassette 4 and titi 7 recess (milk which has' recessed the lid 5 to be fixed.

It is obvious that the panel 1 and the closure and / or locking assembly are themselves designed to fight against fire.

According to the invention, intumescent material 8, for example in strip form, is applied to the edges of mortise 6 of panel I. The cassette 4 is then introduced (milk mortise 6, the intumescent material 8 being interposed between the two elements as shown in Figure 5. The lid 5 is then fixed by screwing panel 1.

According to another embodiment, the intumescent material 8 is applied to the edges of the cassette 4 prior to its introduction into the mortise 6 of the panel 1. This small operation then be carried out at the time of assembly or (the manufacture (1st) together (closing and / or (locking.

Depending on the thickness (1e the strip of intumescent material 8, it may be necessary, at the moment (bed mounting for example, (the dig mortise 6 so that the cassette 4 fully penetrates the mortise, without requiring titi mounting force likely to crush the intumescent material and (degrade its properties.

 In the case where several cassettes (several serve-tires) are provided, the same treatment is applied to each of them.

This gives a fire door whose characteristics exceed the most stringent normative requirements. With an inexpensive solution, a fire door according to the invention can therefore obtain fire certification in different countries, including more eager.

The invention gives the fire door a thermal protection of 19 minutes and more and an opposition to the passage of flames of 35 minutes minimum.

Claims (1)

    IZETIC <SEP> NI) I ('A'I'll) NS

    I. <SEP> Door <SEP> cotilie-leti <SEP> including <SEP> 11n <SEP> panel <SEP> provided <SEP> with a <SEP> mortise <SEP> el <SEP> a <SEP> cassette <tb> (the <SEP> fermetur <SEP> etlcni <SEP> <B> of <SEP> lock <SEP> einhoitée <SEP> clans <SEP> said <SEP> mortise, <SEP> characterized < SEP> en <tb> this <SEP> that <SEP> intumescent <SEP> material <SEP> is <SEP> intersperses <SEP> between <SEP> said <SEP> panel <SEP> and <SEP> said <SEP> cassette . <tb> Z. <SEP> Gate <SEP> cmihe-bu <SEP> according to <SEP> Here <SEP> claim <SEP> I, <SEP> characterized <SEP> in <SEP> due <SEP> said <SEP > material <tb> intumescent <SEP> se <SEP> hresen <SEP> under <SEP> Crnic <SEP> (the <SEP> luinde. <tb> 3. <SEP> Gate <SEP> cotthe-ibi <SEP> according to <SEP> any <SEP> any <SEP> of <SEP> claim <SEP> and <SEP>?, <SEP> characterized <tb> in <SEP> this <SEP> due <SEP> ledii <SEP> tllalliance <SEP> imuniescent <SEP> is <SEP> applies <SEP> shout <SEP> regaid <SEP> (<SEP> three < SEP> sides <SEP> key <tb> said <SEP> cassette <SEP> for <SEP> to <SEP> is <SEP> ilitroduced <SEP> in <SEP> said <SEP> mortise.

    Cassette <SEP> SEP <SEP> etluu <SEP> of <SEP> lock <SEP> characterized <SEP> scream <SEP> this <SEP> only <SEP> material <tb> intumescent <SEP> is <SEP> rahhilrté <SEP> has <SEP> less <SEP> on <SEP> <SEP> edges <SEP> (the <SEP> said <SEP> cassette <SEP> desltnes < SEP> a <SEP> be <tb> introduced <SEP> in <SEP> fine <SEP> mortise <SEP> inelmuted <SEP> to <SEP> this <SEP> eli <SEP> in <SEP> 1111 <SEP> hammai <SEP> of <SEP > door. <tb> 5. <SEP> <SEP> <SEP> mounting process of <SEP> <SEP> <SEP> <SEP> cannula <SEP> and / or <SEP> <B> SEP (the </ B> <SEP> -roltilla @ e <SEP> in <SEP> the <tb> panel <SEP> of a <SEP> poile <SEP> teli <SEP> cutter <SEP> in <SEP> this <SEP> it <SEP> understands <SEP> the <SEP> steps <tb> next <SEP> - <SEP> introduce <SEP> said <SEP> material <SEP> intumescent <SEP> in <SEP> said <SEP> illoiiaise <SEP> and / oi1 <tb> arrange <SEP> said <SEP> Inalerial <SEP> illtmllescelll <SEP> garl <SEP> less <SEP> on <SEP> edges <SEP> (the <SEP> said <tb> cassette <SEP> for <SEP> to <SEP> for <SEP> imroduïts <SEP> in <SEP> said <SEP> num <tb> - <SEP> put <SEP> el) <SEP> place <SEP> said <SEP> cassette <SEP> in <SEP> said <SEP> moliaise <SEP>; <tb> - <SEP> ll \ e # r <SEP> said <SEP> clear <SEP> clear <SEP> said <SEP> panel.