FR2850700A1 - Fire brake peephole, has sheath for maintaining position between lens at convex plan oriented towards receiving socket and bi-concave lens that is situated at end of cylindrical body, where lens is made up of methacrylate - Google Patents
Fire brake peephole, has sheath for maintaining position between lens at convex plan oriented towards receiving socket and bi-concave lens that is situated at end of cylindrical body, where lens is made up of methacrylate Download PDFInfo
- Publication number
- FR2850700A1 FR2850700A1 FR0301279A FR0301279A FR2850700A1 FR 2850700 A1 FR2850700 A1 FR 2850700A1 FR 0301279 A FR0301279 A FR 0301279A FR 0301279 A FR0301279 A FR 0301279A FR 2850700 A1 FR2850700 A1 FR 2850700A1
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- FR
- France
- Prior art keywords
- lens
- sheath
- peephole
- fire
- oriented towards
- 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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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B25/00—Eyepieces; Magnifying glasses
- G02B25/04—Eyepieces; Magnifying glasses affording a wide-angle view, e.g. through a spy-hole
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/28—Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners
- E06B7/30—Peep-holes; Devices for speaking through; Doors having windows
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Special Wing (AREA)
Abstract
Description
AAT
JUDAS COUPE-FEUFIREWALL JUDAS
L'invention se rattache au secteur technique des judas optiques et en particulier des judas aménagés pour assurer une fonction coupe-feu. The invention relates to the technical sector of optical peepholes and in particular peepholes fitted out to provide a fire protection function.
Le demandeur a développé depuis de nombreuses années des judas coupefeu qui font l'objet d'une large commercialisation. Cependant, la conception de cette fabrication reste complexe, longue au montage et est donc d'un 10 cot élevé. Par ailleurs, tous les essais qui ont été effectués ont démontré qu'en situation d'incendie, ils offraient une résistance au feu pendant une période de 30 minutes environ, répondant ainsi aux normes de sécurité en vigueur. The applicant has developed for many years fire judas which are widely marketed. However, the design of this manufacture remains complex, time-consuming to assemble and is therefore of a high cost. In addition, all the tests that have been carried out have shown that in a fire situation, they offered fire resistance for a period of approximately 30 minutes, thus meeting the safety standards in force.
La démarche du demandeur a été d'améliorer et optimiser la conception des judas anti-feu par une simplification de montage, tout en recherchant une amélioration au temps de résistance au feu. The applicant's approach was to improve and optimize the design of the fire peepholes by simplifying assembly, while seeking improvement in the fire resistance time.
Ainsi, le judas optique coupe-feu est du type comprenant un corps 20 cylindrique s'ajustant dans une douille réceptrice agencée avec une collerette de fixation et volet obturateur, des lentilles étant disposées dans le corps en étant maintenues en position, caractérisé en ce que le corps reçoit intérieurement un fourreau intumescent assurant la fonction anti-feu, ledit fourreau assurant en outre la fonction d'entretoise entre une lentille à plan 25 convexe orientée vers la douille et une lentille biconcave située à l'opposé et en extrémité dudit corps. Thus, the optical fire peephole is of the type comprising a cylindrical body 20 fitting into a receiving socket arranged with a fixing flange and shutter shutter, lenses being arranged in the body while being held in position, characterized in that the body internally receives an intumescent sheath ensuring the fire-fighting function, said sheath further ensuring the function of spacer between a lens with a convex plane oriented towards the socket and a biconcave lens situated opposite and at the end of said body.
Ces caractéristiques et d'autres encore ressortiront bien de la suite de la These characteristics and others will become clear from the rest of the
description.description.
Pour fixer l'objet de l'invention illustré d'une manière non limitative aux figures des dessins o: - La figure 1 est une vue en coupe longitudinale du judas coupe-feu selon l'invention, en situation d'utilisation normale. To fix the object of the invention illustrated in a nonlimiting manner in the figures of the drawings o: - Figure 1 is a longitudinal sectional view of the fire peephole according to the invention, in normal use situation.
- La figure 2 est une vue en perspective du fourreau intumescent dans une première mise en oeuvre obtenue par injection. - Figure 2 is a perspective view of the intumescent sheath in a first implementation obtained by injection.
- La figure 3 est une vue en perspective du fourreau intumescent dans une seconde mise en oeuvre sous forme de bande à enrouler. - Figure 3 is a perspective view of the intumescent sheath in a second implementation in the form of a strip to be wound.
- La figure 4 est une vue en coupe longitudinale du judas selon l'invention 10 dans la situation de fonction anti-feu. - Figure 4 is a longitudinal sectional view of the peephole according to the invention 10 in the situation of fire function.
Afin de rendre plus concret l'objet de l'invention, on le décrit maintenant d'une manière non limitative illustrée aux figures des dessins. In order to make the object of the invention more concrete, it is now described in a nonlimiting manner illustrated in the figures of the drawings.
Le judas optique coupe-feu est référencé dans son ensemble par (1). Il comprend un corps (2) cylindrique avec un alésage intérieur (2a) et une portée (2b) extérieure filetée pour coopérer avec une douille (3) s'ajustant à réglage dans la paroi de porte ou cloison (C). De manière classique, la douille (3) présente à une extrémité une collerette (3a) agencée avec une 20 portée (3b) autorisant le positionnement du support (4) du volet obturateur (5) basculant à l'aide d'une languette (Sa) de préhension. The optical fire peephole is referenced as a whole by (1). It comprises a cylindrical body (2) with an internal bore (2a) and an external threaded surface (2b) to cooperate with a bush (3) adjusting with adjustment in the door wall or partition (C). Conventionally, the sleeve (3) has at one end a flange (3a) arranged with a bearing surface (3b) allowing the positioning of the support (4) of the shutter flap (5) tilting using a tongue ( Sa) gripping.
La portée avant (2c) du corps présente de manière classique une collerette d'appui (2d) sur l'une des faces de la paroi ou cloison de réception du judas. 25 La mise en oeuvre de l'invention est la suivante. The front surface (2c) of the body conventionally has a support flange (2d) on one of the faces of the wall or partition for receiving the peephole. The implementation of the invention is as follows.
Le corps (2) est agencé dans son alésage intérieur (2a) avec un double épaulement (2e-2f), l'un (2e) étant situé à l'entrée du corps pour la réception du ménisque (6) et d'une lentille biconcave (7), l'autre (2f) étant situé en retrait de l'autre extrémité du corps et servant de butée d'appui à une lentille convexe (8). La portée (2g) située entre la double épaisseur (2e2f) de grande longueur permet la réception d'un fourreau (9) réalisé en un 5 matériau intumescent, ledit fourreau assurant la fonction d'entretoise entre les lentilles (7 et 8). The body (2) is arranged in its internal bore (2a) with a double shoulder (2e-2f), one (2e) being located at the entrance of the body for the reception of the meniscus (6) and a biconcave lens (7), the other (2f) being set back from the other end of the body and serving as a support stop for a convex lens (8). The scope (2g) located between the double thickness (2e2f) of great length allows the reception of a sheath (9) made of an intumescent material, said sheath ensuring the function of spacer between the lenses (7 and 8).
Ce fourreau peut être réalisé conformément à l'enseignement du brevet EP 745751, commercialisé sous la marque PYROPLEX de la société 10 REDDIPLEX GROUP PLC. This sheath can be produced in accordance with the teaching of patent EP 745751, marketed under the brand name PYROPLEX of the company 10 REDDIPLEX GROUP PLC.
Ce fourreau se présente sous la forme d'un tube extrudé coupé à la longueur désirée, comme représenté figure 2 en étant ainsi monobloc. En variante et comme représenté figure 3, il peut se présenter sous forme d'une plaque, 15 découpée aux dimensions souhaitées et enroulée, les bordures étant mises bout à bout. This sheath is in the form of an extruded tube cut to the desired length, as shown in Figure 2, thus being in one piece. As a variant and as shown in FIG. 3, it may be in the form of a plate, cut to the desired dimensions and rolled up, the edges being placed end to end.
Ce fourreau intumescent, sous l'action de la chaleur, se déforme et vient ainsi obturer l'espace (E) vide à l'intérieur du corps (2), ce qui empêche 20 toute propagation du feu. This intumescent sheath, under the action of heat, deforms and thus closes the empty space (E) inside the body (2), which prevents any propagation of the fire.
Selon les tests réalisés, il apparaît que le judas ainsi coupé et agencé selon l'invention offre une résistance au feu très largement améliorée, qui est de l'ordre de 60 minutes, c'est-à-dire quasiment un doublement du temps de 25 réaction par rapport à l'art antérieur et aux normes. Par ailleurs, le judas présente une conception de montage améliorée, rapide. Les lentilles sont en méthacrylate par exemple, de sorte que le cot de revient du judas est largement abaissé. According to the tests carried out, it appears that the peephole thus cut and arranged according to the invention offers a very greatly improved fire resistance, which is of the order of 60 minutes, that is to say almost a doubling of the time of 25 reaction to prior art and standards. In addition, the peephole has an improved, quick mounting design. The lenses are in methacrylate for example, so that the cost price of the peephole is largely lowered.
- 2850700- 2850700
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0301279A FR2850700B1 (en) | 2003-01-31 | 2003-01-31 | JUDAS FIREWALL |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0301279A FR2850700B1 (en) | 2003-01-31 | 2003-01-31 | JUDAS FIREWALL |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2850700A1 true FR2850700A1 (en) | 2004-08-06 |
FR2850700B1 FR2850700B1 (en) | 2005-04-15 |
Family
ID=32696349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0301279A Expired - Fee Related FR2850700B1 (en) | 2003-01-31 | 2003-01-31 | JUDAS FIREWALL |
Country Status (1)
Country | Link |
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FR (1) | FR2850700B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104499913A (en) * | 2015-01-15 | 2015-04-08 | 温州维沙华电气有限公司 | Antitheft cat eye |
US11498396B1 (en) * | 2018-12-24 | 2022-11-15 | Robert N. Justice | Viewing port |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4172636A (en) * | 1977-09-26 | 1979-10-30 | Nicon Co., Ltd. | Door scope |
EP0297755A1 (en) * | 1987-06-30 | 1989-01-04 | Richard Ruben Ritchie | Viewing and oral communications assembly for doors |
US5269111A (en) * | 1989-06-16 | 1993-12-14 | Leaderflush Doors Limited | Door |
EP0745751A2 (en) | 1995-06-02 | 1996-12-04 | Reddiplex Group PLC | Intumescent strip |
-
2003
- 2003-01-31 FR FR0301279A patent/FR2850700B1/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4172636A (en) * | 1977-09-26 | 1979-10-30 | Nicon Co., Ltd. | Door scope |
EP0297755A1 (en) * | 1987-06-30 | 1989-01-04 | Richard Ruben Ritchie | Viewing and oral communications assembly for doors |
US5269111A (en) * | 1989-06-16 | 1993-12-14 | Leaderflush Doors Limited | Door |
EP0745751A2 (en) | 1995-06-02 | 1996-12-04 | Reddiplex Group PLC | Intumescent strip |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104499913A (en) * | 2015-01-15 | 2015-04-08 | 温州维沙华电气有限公司 | Antitheft cat eye |
US11498396B1 (en) * | 2018-12-24 | 2022-11-15 | Robert N. Justice | Viewing port |
Also Published As
Publication number | Publication date |
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FR2850700B1 (en) | 2005-04-15 |
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