EP0074486B1 - Prise d'air à registre coulissant avec un ventilateur actionné par un moteur - Google Patents

Prise d'air à registre coulissant avec un ventilateur actionné par un moteur Download PDF

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Publication number
EP0074486B1
EP0074486B1 EP82106943A EP82106943A EP0074486B1 EP 0074486 B1 EP0074486 B1 EP 0074486B1 EP 82106943 A EP82106943 A EP 82106943A EP 82106943 A EP82106943 A EP 82106943A EP 0074486 B1 EP0074486 B1 EP 0074486B1
Authority
EP
European Patent Office
Prior art keywords
ventilation
slide valve
control
ventilation system
drive member
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.)
Expired
Application number
EP82106943A
Other languages
German (de)
English (en)
Other versions
EP0074486A1 (fr
Inventor
Julius Maus
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.)
Gretsch Unitas GmbH Baubeschlaege
Original Assignee
Gretsch Unitas GmbH Baubeschlaege
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 Gretsch Unitas GmbH Baubeschlaege filed Critical Gretsch Unitas GmbH Baubeschlaege
Priority to AT82106943T priority Critical patent/ATE18602T1/de
Publication of EP0074486A1 publication Critical patent/EP0074486A1/fr
Application granted granted Critical
Publication of EP0074486B1 publication Critical patent/EP0074486B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/0263—Insulation for air ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/029—Duct comprising an opening for inspection, e.g. manhole
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/12—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of sliding members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise

Definitions

  • the invention relates to a slide ventilation with a motor-driven fan, the ventilation slide of which is adjustable by means of a drive mechanism, wherein a drive member of the drive mechanism is at the same time a movement element for an electrical switching device for an electric motor of the fan or is connected in such a way that the closed slide ventilation is stationary and the fully open slide ventilation is assigned to the electric motor running at full speed, the drive member being at least indirectly motionally connected to a sliding contact of a potentiometer of the electrical switching device which is in the circuit of the electric motor, the sliding contact being connected to the drive member at least indirectly via a rotatably mounted control member is coupled.
  • a slide ventilation has become known from GB-A 783 757.
  • This document deals with a ventilation device for a car, the ventilation slide designed as a rotary valve being part of a throttle valve.
  • the latter releases the air flow to the interior of the car via an inlet duct, either completely or throttled.
  • the air flow is completely shut off in an end position.
  • Slider vents for residential buildings are equipped with a blower unit if the natural air circulation is insufficient.
  • the object of the invention is therefore to develop a slide ventilation of the type mentioned in such a way that it is suitable for ventilation of a room and a continuous adjustment of the ventilation effect is possible.
  • the slide ventilation is designed according to the preamble of claim 1, corresponding to the characterizing part of this claim.
  • the use of flat, flat slide ventilation makes the latter suitable for installation in residential buildings.
  • the link control enables a continuous change in both the speed of the electric motor of the fan and the opening width of the slide ventilation. With increasing closing of the slide ventilation, the engine speed is gradually reduced, the engine then standing still when the slide ventilation is completely closed. Conversely, the fan motor runs at maximum speed when the slide ventilation is fully open. In this way an individual adaptation of this slide ventilation to the respective needs and requirements is possible.
  • Set controls are characterized by a particularly simple and robust construction and they also offer the possibility of using an openable ventilation housing, the interior of which can be cleaned quickly and thoroughly.
  • an openable ventilation housing the interior of which can be cleaned quickly and thoroughly.
  • coupling of the link control parts when closing the housing is possible without any problems.
  • By opening the housing you can also make the electrical switching device easily accessible. This is of great advantage especially when using a potentiometer.
  • the noise generated by the fan can also be disruptive, so that an individual adjustment of the noise level can also be achieved by closing the slide ventilation to a greater or lesser extent.
  • the drive member or the control member carries a control cam which interacts with a limit switch additionally located in the circuit of the blower motor.
  • the latter can be used to trigger at least one additional switching operation as soon as the control cam has assumed or leaves the corresponding rotary position.
  • the assignment can be made, for example, so that the control cam holds the switch in its open position when the slide ventilation is closed and actuates the switching mechanism as soon as the slide ventilation is partially or fully opened.
  • This switch can also be used to advantageously switch a control lamp on and off in order to signal the operating state of the fan motor.
  • Another variant of the invention is characterized in the case of a slide ventilation with a ventilation which can be displaced on a housing cover slide in that the drive member is designed as a rotatable disk in the ventilation housing with the control pin and the control slot is open at both ends and is formed by two approaches on the surface of the ventilation slide assigned to the drive member, the drive member being the control member.
  • This slide ventilation is perfectly protected against incorrect assembly after opening. If the relative position of the parts of the link control to be coupled with one another is incorrect, the housing of the slide ventilation cannot be closed, because the control pin of the drive member then pushes against one of the two approaches. Only when you have moved the ventilation slide by the necessary amount of correction, can the control pin step between the two approaches, whereby the correct coupling is made and the sliding housing can be closed.
  • the two approaches are one behind the other in the direction of movement of the ventilation slide. They are expediently of the same shape and size. If both are at the same distance from the guides of the ventilation slider, this version is suitable for a construction with a right-hand and left-hand actuator.
  • a further embodiment of the invention provides that the lugs of the control plate are arranged offset to one another perpendicular to the direction of displacement of the ventilation slide. Incorrect coupling of the link control is also excluded here. This means that any existing hinged cover cannot be closed when the control pin hits one of the two approaches. Otherwise, this construction is suitable for an embodiment in which the control member can only be rotated in one direction.
  • the ventilation slide is slidably mounted on a housing cover and is attached to the control member of the sliding contact, and that the drive member is designed as a rotatable disc in the housing cover, which carries the control pin of the link control, which in a hole or. the like of the control element engages. Because here the ventilation slide is to a certain extent between the drive member and the control member, the control pin penetrates the control slot of the ventilation slide. When the housing cover is opened, the control pin is coupled by the control element. While the link control between the control pin and the slide of the slide ventilation is maintained.
  • the free end of the control pin is designed as a telescopic member. This enables a trouble-free automatic coupling of the control pin and control element even if the bore of the control element is not aligned with the free control pin end when the hinged cover is closed. If the free end of the control pin strikes the disk-shaped control member after the hinged lid has been closed, this leads to a compression of the telescope. Coupling with the control element does not take place. Only when the lost correct assignment of control pin and bore in the control member is restored by turning the control member and / or the drive member does the compressed telescopic end of the control pin automatically jump into the bore. From this moment on, the engine speed can also be changed again depending on the slide position.
  • a further development of the invention consists in that the drive element or the control element can be driven by means of an, in particular electrical, servomotor and the limit switch which can be actuated by the control cam is also a switch for the servomotor. Remote control of the slide ventilation is easily possible via this servomotor. In addition, it allows a slide ventilation to be installed at a great height where it is not possible, or at least not readily possible, to actuate the drive member by hand. As already explained, the limit switch can also take on other tasks or take on additional tasks.
  • a further variant of the invention is characterized in that the ventilation slide is formed in two parts and consists of a slide part having only ventilation openings and webs and a control plate having the control slot of the link control. Due to this two-part design, a section of so-called yard goods can be used for the ventilation slide, which enables the slide ventilation to be produced in any length up to the maximum value of the yard goods. With this section, the control plate is connected so that thrust and tensile forces can be transmitted. At the same time, the possibility of right and left arrangement of the drive is retained. If the control slot is located on the control plate, the control pin is attached to the drive or switch-on element.
  • control slot does not necessarily have to be an elongated hole; rather, as provided in the exemplary embodiments, it can also be open on one or two opposite sides. This can be both a punched out control slot and a groove formed by strips or similar elevations.
  • control plate is coupled to a row of holes in a ventilation opening via a row of pins, each ventilation opening of the ventilation slide consisting of several rows of holes. Even with this special ventilation design that prevents insects from entering slots are special measures for coupling the control plate are not necessary despite the use of yard goods.
  • control plate is advantageously slidably mounted in the same guides that also serve to guide the ventilation slide. That is why it is equipped with a cranked coupling end that has the row of pins and which laterally overlaps the outermost ridge of the ventilation slider.
  • a preferred embodiment of the invention is that at least one of the longitudinal edges of the control plate has a displacement limiting slot or the like with a bolt engaging therein. of the housing forms a slide limiting device.
  • This achieves a stroke limitation on the one hand and, provided that no other means are provided, exact adherence to the two end positions of the ventilation slide.
  • this configuration enables the ventilation slide to be attached to an openable, in particular hinged, housing cover without the ventilation slide being able to be moved into a position unsuitable for subsequent coupling with the drive in the so-called cleaning position.
  • the cover is designed as a hinged cover of a sound and / or heat-insulated slide ventilation.
  • the slide ventilation has a heat and sound-insulated ventilation housing 1, which essentially consists of a fixed housing part 2 with an approximately U-shaped cross section and a movable housing part designed as a cover 3, which is expediently a hinged cover. After an inclined wall 4 forming the flow channel is firmly connected to the cover 3, that is to say it can be folded out, the interior 5 of the ventilation housing is readily accessible for cleaning and inspection purposes when the cover 3 is open.
  • the ventilation slide 6 is slidably mounted in the direction of the double arrow 7.
  • the housing ventilation openings 8, which according to FIG. 1 have the shape of upright rectangular openings.
  • the ventilation openings 9 of the ventilation slide 6 are formed from a number of hole groups 10 arranged next to one another, in particular offset in the longitudinal direction. In the exemplary embodiment there are five such rows.
  • the webs 11 between these ventilation openings of the ventilation slide 6 and the housing or the cover 3 are essentially the same size. 6, the ventilation slide is advantageously constructed from two parts, the larger slide part 12, which extends over almost the entire length of the slide ventilation, being a section of so-called yard goods, i.e. a raw material several meters long.
  • the comparatively short part of the ventilation slide forms a control plate 13 with a control slot 14. At its left end in FIG. 6, it carries a row of pins 15, the size and spacing of the pins being matched to the hole size and the hole spacing of the hole groups 10. In this way, a quick and secure non-positive connection of both slide parts is possible.
  • All embodiments of this slide ventilation are equipped with a blower 16 which is driven by a blower motor, not shown.
  • the speed of the blower motor can be changed via a potentiometer 20 with sliding contact 21.
  • a drive member 22 (FIG. 3) or 23 (FIG. 4) is also an adjusting member for the motor speed of the blower motor.
  • the opening width of the slide ventilation is determined with the help of the drive element, ie it can move the ventilation slide from the completely closed to the fully open position and vice versa.
  • a limit switch 24, which is actuated by a cam 25, is expediently used.
  • the contacts in the limit switch and thus the circuit are open when the cam 25 depresses the plunger 26 of the limit switch.
  • a control lamp 27 can also be located in the circuit of the blower motor. When it lights up, the blower motor rotates at a speed predetermined by the position of the sliding contact 21.
  • the cam 25 not only switches the circuit for the blower motor, but also that of a servomotor, if the ventilation slide is not moved by hand.
  • the drive member 22 is rotatably mounted on the cover 3. It can by means of a handle, not shown, which is external when the ventilation housing is closed, for example a handle, toggle, handwheel or the like. be rotated by a predetermined amount.
  • the latter is predefined by the drive mechanism and is defined in such a way that in one rotational end position the ventilation openings of the housing or cover 3 and the ventilation slide 6 are congruent, while in the other setting they are each covered by the webs 11 of the other part.
  • a displacement limitation is advantageously achieved by attaching to the control plate 13, that is to say the short part of the ventilation slide 6, an in particular open-ended displacement limitation slot 28 which extends in the displacement direction 7 of the ventilation slide 6 and which cooperates with a stop bolt (not shown), which is inserted into a corresponding hole in the area of the upper housing guide 29 of the cover 3.
  • a displacement limiting slot 28 is also provided in the embodiment of FIG. 6 at the lower end of the control plate 13.
  • a control pin 30 is shown eccentrically on the drive member 22, the free end of which is designed as a telescopic member 31. It passes through the control slot 14 of the control plate 13 and thus forms a link control 32. With its help, the rotary movement of the drive member 22 can be converted into a displacement movement of the ventilation slide 6.
  • the ventilation slide 6 has assumed the shift position provided for this purpose, the telescopic member 31 engages in a bore 33 of a control member 34, which is designed in particular as a control disk. Accordingly, the rotary movement of the handle for the ventilation slide adjustment is transmitted to the control member 34 via the plug coupling consisting of the control pin 30 and the bore 33. Because the sliding contact 21 of the potentiometer 20 is articulated to the control member 34, the adjustment of the ventilation slide 6 also causes a displacement of the potentiometer tap.
  • the ventilation slide 6 has been inadvertently moved when the slide ventilation is open, so that when the cover 3 is closed, the telescopic member 31 is not aligned with the bore 33, the cover can still be closed completely.
  • the telescopic member 31 is pressed against the resistance of a spring, not shown, in the control pin 30. If the drive member 22 is subsequently rotated in the correct direction and by the required amount, the telescopic member 31 jumps into the bore 33 due to the spring tension as soon as the two are aligned. In this way, it is always ensured that a certain opening position of the slide ventilation is assigned to a predetermined potentiometer tap and thus to a precisely determined speed of the fan.
  • the drive member 23 is mounted on the first or fixed housing part 2 and at the same time is designed as a control member 35. It is driven by an electric servomotor 43 and can sit directly on its drive axle. Its control pin 36, which does not require a telescopic member and therefore does not have one, works together with a control slot 37, which is formed by two cube-like extensions 38 and 39 of the control plate 13 and is consequently open at both ends. This control slot 37 and the control pin 36 also form a link control 40 with which the rotary movement of the control member 35 can be converted into a back and forth movement of the ventilation slide 6. However, as I said, the rotary movement is based on an actuator of known design and not directly from the hand of an operator.
  • the two approaches 38 and 39 of FIG. 4 lie exactly parallel to one another and this enables the use of a right-hand and left-hand servomotor 43. However, if the latter only has a single direction of rotation, it is expedient if the two approaches 41 and 42 in 5 apparent from FIG. 5 offset perpendicular to the direction of displacement of the ventilation slide 6 against each other.
  • These projections 41, 42 advantageously have an approximately triangular shape in cross section.

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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)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (11)

1. Dispositif d'aération à tiroir, avec un ventilateur (16) entraîné par un moteur, dont le tiroir (6) du dispositif d'aération est déplaçable au moyen d'un mécanisme d'entraînement, un organe d'entraînement (22, 23) du mécanisme d'entraînement étant en même temps un élément de manoeuvre pour un dispositif électrique de commutation pour un moteur électrique du ventilateur (16), ou lui étant relié de telle sorte que le moteur électrique au repos soit associé à la fermeture du dispositif d'aération à tiroir et qu'au dispositif d'aération complètement ouvert soit associé le moteur électrique tournant à plein nombre de tours, l'organe d'entraînement (22, 23) étant relié pour son mouvement, au moins indirectement, à un contact glissant (21 ) d'un potentiomètre (20) du dispositif électrique de commutation, ce potentiomètre se trouvant dans le circuit du moteur électrique; le contact glissant (21 ) étant accouplé, au moins indirectement, à l'organe d'entraînement (22, 23) par l'intermédiaire d'un organe de commande (34) monté à rotation, caractérisé en ce que le tiroir (6) du dispositif d'aération est une partie d'un dispositif d'aération à tiroir plat et plan, et présente une fente de commande (14, 37) qui forme, avec un tourillon de commande excentré (30, 36) de l'organe d'entraînement (22, 23), une commande à coulisse (32, 40) pour la transformation du mouvement de rotation de l'organe d'entraînement en un mouvement de translation du tiroir (6) du dispositif d'aération, un nombre de tours déterminé du moteur électrique étant associé à toute position intermédiaire quelconque de la commande à coulisse (32,40).
2. Dispositif d'aération à tiroir suivant la revendication 1, caractérisé en ce que l'organe d'entraînement (23) ou l'organe de commande (34) porte une came de commande (25) qui coopère avec un interrupteur de fin de course (24) se trouvant supplémentairement dans le circuit du moteur du ventilateur.
3. Dispositif d'aération à tiroir suivant la revendication 1 ou 2, avec un tiroir de dispositif d'aération déplaçable en translation sur un couvercle de coffre, caractérisé en ce que l'organe d'entraînement (23) est conformé en disque à tourillon de commande (36) pouvant tourner dans le coffre du dispositif d'aération (1), et en ce que la fente de commande est ouverte aux deux extrémités et est formée par deux appendices (38, 39; 41, 42) sur la surface du tiroir (6) du dispositif d'aération associée à l'organe d'entraînement (23), l'organe d'entraînement (23) étant en même temps l'organe de commande (35).
4. Dispositif d'aération à tiroir suivant la revendication 3, caractérisé en ce que les appendices (41,42) de la plaque de commande (13) sont décalés l'un par rapport à l'autre perpendiculairement à la direction de translation (7) du tiroir (6) du dispositif d'aération.
5. Dispositif d'aération à tiroir suivant la revendication 1 ou 2, caractérisé en ce que le tiroir du dispositif d'aération est monté de façon déplaçable par translation sur un couvercle de coffre et en ce que le contact glissant est adapté à l'organe de commande, et en ce que l'organe d'entraînement (22) est conformé en disque pouvant tourner dans le couvercle du coffre, ce disque portant le tourillon de commande (30) de la commande à coulisse (32), lequel pénètre dans un trou (33) ou analogue de l'organe de commande (34).
6. Dispositif d'aération à tiroir suivant la revendication 5, caractérisé en ce que l'extrémité libre du tourillon de commande (30) est conformée en organe télescopique (31 ).
7. Dispositif d'aération à tiroir suivant l'une des revendications précédentes, caractérisé en ce que l'organe d'entraînement (23), respectivement l'organe de commande (35) peuvent être entraînés à l'aide d'un moteur de positionnement, en particulier électrique, (43), et en ce que le commutateur de fin de course (24) actionnable par la came de commande (25) est en même temps un commutateur pour le moteur de positionnement.
8. Dispositif d'aération à tiroir suivant l'une quelconque des revendications précédentes, caractérisé en ce que le tiroir (6) du dispositif d'aération est fait de deux parties et consiste en une partie de tiroir (12) présentant simplement des ouvertures d'aération (9) ainsi que des montants (11), et en une plaque de commande (13) présentant la fente de commande (14) de la commande de coulisse (32, 40).
9. Dispositif d'aération à tiroir suivant la revendication 8, caractérisé en ce que la plaque de commande (13) est accouplée par une série de tétons (15) à une série de trous d'une ouverture d'un dispositif d'aération, chaque ouverture du dispositif d'aération (9) du tiroir (6) consistant en plusieurs séries de trous.
10. Dispositif d'aération à tiroir suivant la revendication 8 ou 9, caractérisé en ce que sur au moins l'un des bords longitudinaux de la plaque de commande (13) est prévue une fente (28) de limitation de déplacement qui forme, avec un boulon ou analogue du coffre (1), qui y pénètre, un dispositif de limitation de déplacement.
.11. Dispositif d'aération à tiroir suivant l'une des revendications 5 à 10, caractérisé en ce que le couvercle (3) est réalisé comme couvercle rabattable d'un dispositif d'aération à tiroir, amortisseur du bruit et/ou de la chaleur.
EP82106943A 1981-09-01 1982-07-31 Prise d'air à registre coulissant avec un ventilateur actionné par un moteur Expired EP0074486B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82106943T ATE18602T1 (de) 1981-09-01 1982-07-31 Schieberlueftung mit einem motorbetriebenen geblaese.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3134515A DE3134515C3 (de) 1981-09-01 1981-09-01 Schieberlüftung mit einem motorbetriebenen Gebläse
DE3134515 1981-09-01

Publications (2)

Publication Number Publication Date
EP0074486A1 EP0074486A1 (fr) 1983-03-23
EP0074486B1 true EP0074486B1 (fr) 1986-03-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP82106943A Expired EP0074486B1 (fr) 1981-09-01 1982-07-31 Prise d'air à registre coulissant avec un ventilateur actionné par un moteur

Country Status (3)

Country Link
EP (1) EP0074486B1 (fr)
AT (1) ATE18602T1 (fr)
DE (1) DE3134515C3 (fr)

Cited By (1)

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DE3134515A1 (de) * 1981-09-01 1983-03-17 Gretsch-Unitas Gmbh Baubeschlagfabrik, 7257 Ditzingen "schieberlueftung mit einem motorbetriebenen geblaese"

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CN106642582A (zh) * 2016-12-27 2017-05-10 张四清 一种空调风量控制系统
DE102017217535A1 (de) * 2017-10-02 2019-04-04 Siemens Aktiengesellschaft Belüftungsanlage, System und Verfahren zum Betreiben einer Belüftungsanlage
CN114483622B (zh) * 2022-01-12 2023-08-11 河南省豫冠安全发展有限公司 一种能有效控制风流的矿井通风结构

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DE2725457C2 (de) * 1977-06-04 1983-12-15 Johnson Service Co., Milwaukee, Wis. Verfahren zum Regeln der Luftzufuhr in belüfteten Räumen und Vorrichtung zur Durchführung des Verfahrens
DE2919682A1 (de) * 1979-05-16 1980-11-20 Siegenia Frank Kg Lueftungsvorrichtung fuer den einbau in fenster und/oder in andere wandoeffnungen von gebaeuden
DE3000994A1 (de) * 1980-01-12 1981-08-06 Gretsch-Unitas Gmbh Baubeschlagfabrik, 7257 Ditzingen Schieberlueftung
DE3134515C3 (de) * 1981-09-01 1996-06-13 Gretsch Unitas Gmbh Schieberlüftung mit einem motorbetriebenen Gebläse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3134515A1 (de) * 1981-09-01 1983-03-17 Gretsch-Unitas Gmbh Baubeschlagfabrik, 7257 Ditzingen "schieberlueftung mit einem motorbetriebenen geblaese"

Also Published As

Publication number Publication date
DE3134515A1 (de) 1983-03-17
EP0074486A1 (fr) 1983-03-23
ATE18602T1 (de) 1986-03-15
DE3134515C2 (fr) 1989-09-14
DE3134515C3 (de) 1996-06-13

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