GB2062844A - Ventilators - Google Patents

Ventilators Download PDF

Info

Publication number
GB2062844A
GB2062844A GB8029378A GB8029378A GB2062844A GB 2062844 A GB2062844 A GB 2062844A GB 8029378 A GB8029378 A GB 8029378A GB 8029378 A GB8029378 A GB 8029378A GB 2062844 A GB2062844 A GB 2062844A
Authority
GB
United Kingdom
Prior art keywords
shutter
ventilator
closure
ventilator according
frame
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.)
Withdrawn
Application number
GB8029378A
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.)
BFG Glassgroup GIE
Original Assignee
BFG Glassgroup GIE
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 BFG Glassgroup GIE filed Critical BFG Glassgroup GIE
Publication of GB2062844A publication Critical patent/GB2062844A/en
Withdrawn legal-status Critical Current

Links

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
    • F24F13/08—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
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/44—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose
    • E04C2/52—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits
    • E04C2/521—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits serving for locating conduits; for ventilating, heating or cooling
    • E04C2/523—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits serving for locating conduits; for ventilating, heating or cooling for ventilating
    • 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
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1486—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by bearings, pivots or hinges
    • 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
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F24F2013/1473—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with cams or levers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Air-Flow Control Members (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A ventilator comprises one or more elements 1, 2, 3, 4 of vitreous or plastics material defining one or more ventilating ducts, and a closure device comprising a shutter 6 which can move around a pivot axis 14 and means 5 for connecting the shutter to said elements. The pivot axis 14 is located between a shutter closure portion 11 and at least one shutter lever portion 12 so that rocking forces can be applied to one of the shutter portions e.g. 11 to pivot the shutter into a closed position or to the other of them e.g. 12 to pivot the shutter into an open position. <IMAGE>

Description

SPECIFICATION Closure devise for a ventilator The invention relates to a ventilator comprising one or more elements of vitreous or plastics material and having at least one ventilating duct closable by a closure device, the closure device comprising a pivoted shutter for obturating the or at least one said duct and means for mounting the shutter to a said ventilator.
In the building industry it is known to use ventilators comprising one or more elements of vitreous or plastics material and preferably having the dimensions of a multiple of the dimensions of the constructional elements, such as bricks, blocks, etc., such ventilators being adapted to enable air to circulate from one place to another in the building, the two places being separated by a party wall or outside wall. One of the known ventilating devices is formed by a set of stackable elements preferably so connected in prismatic shape that one or more ventilating ducts are bounded by such elements when superposed.
It is also known to provide ventilating ducts with closing devices which can be used more particularly in cold or very hot weather.
In one of the known constructions a frame is mounted on the edges of the ventilator and a closure device rests in a groove in the base of the frame and can move freely in the groove to be placed in the open or closed position. A lateral abutment provided on each side of the frame prevents lateral displacement of the closure device when it is in the open position. The main disadvantage of that construction is that the closure device can easily leave or even fall out of the groove in the frame during opening and closing operations. Moreover, that kind of closure device does not enable the device to be readily placed in intermediate positions, between the fully closed and fully open positions.
In another prior art construction the ventilator has one or more closure devices, one at least of which is so mounted as to be able to pivot in relation to one of the elements of vitreous or plastics material forming the ventilator, and at least one return spring is provided to enable the pivoting closure device to be given an inclination in a predetermined position. This construction is more stable than the preceding one and has the further advantage of enabling a partially closed position of the ventilator closure device to be selected, but the return springs may become corroded which may make the device look unattractive, and moreoeverthe positioned elements are difficult to interchange; another disadvantage is that construction and positioning are complicated.
It is an object of the invention to obviate the disadvantages of the prior art devices and to provide attractive-looking, stable ventilator closure devices which can be placed in a closed or open position and are of simple, rational construction, being adapted very satisfactorily for large scale manufacture. Other advantages will be gathered from the following description.
More precisely, the invention provides a ventilator comprising one or more elements of vitreous or plastics material and having at least one ventilating duct closable by a closure device, the closure device comprising a pivoted shutter for obturating the or at least one said duct and means for mounting the shutter to a said ventilatior, characterised in that said shutter has a pivot axis located between a shutter closure portion and at least one shutter lever portion, whereby, when the closure device is mounted to a said ventilator, rocking forces can be applied to one of said shutter portions to pivot the shutter into a closed position where its closure portion obturates said duct(s), or to the other of said shutter portions to pivot the shutter into an open position.
The resulting ventilator closing device is particularly advantageous, since the two constituent portions of the shutter are integrated in a single unit for opening and closing to provide a stable unit which can be of simple construction.
The shutter is preferably pivotable into an open position in which the or at least one said lever portion abuts against a bearing surface so as to provide a positive location of the shutter in its open position. Of course it will be appreciated that this advantage can be gained in other ways, for example by shaping the pivot axle and pivot hub so as to form abutment surfaces.
Advantageously, one or more ribs are disposed on the closure portion of the shutter. As a result the shutter is substantially reinforced.
The or each lever portion can be constructed in the form of tongues or appendages which extend on the side of the pivot axis remote from the closure element.
In a preferred embodiment the or each abutting lever portion comprises a prolongation of the or each rib.
To ensure the operation of the closure device between its open and closed positions, the plane of the or each lever portion and the plane of the closure portion of the shutter are placed in an angular position in relation to one another. This being the case, in an advantageous embodiment of the invention, the closure element and the lever element are formed by juxtaposed plates forming a dihedron. This embodiment is particularly attractive-looking and easy to produce; moreover, it is very well adapted to obtaining various possible uses in accordance with the desired function -- i.e., positioning in a closed, open or partially closed position.
The selection of the position of the pivot in relation to the ventilating duct(s) when the closure device is attached to the ventilator enables a closure device to be obtained which in its closed position closes either all the ventilating duct(s), or only some or part of them. In the latter case, the tilting of the closure device between its two positions enables a transition to be made from slight to strong ventilation.
The embodiment in the form of a dihedron can very readily be adapted to the use of the aforementioned ribs, which in that case can consist in two lateral reinforcing triangles.
Whatever the embodiment used may be, the shutter pivot axis is preferably defined by pivot stub axles on the shutter, and the pivot axles are advantageously attached to the ribs formed by the two lateral reinforcing triangles when the latter are used.
In a preferred embodiment the means for mounting the shutter to the ventilator comprises a frame. The frame can comprise claws which cooperate with bosses or grooves on the ventilator to ensure attachment.
In an advantageous embodiment the frame has hooking claws acting in opposite directions on the vitreous or plastics material forming the ventilator.
In that case, of course, the material of whcih the frame is made, or at any rate the hooking claws, must have the necessary resilient properties, in order to ensure reliable attachment of the closure device to the ventilator, without the risk that the closing device will drop out when the shutter is manipulated.
In an advantageous embodiment the bearing surface against which the lever portion of the shutter of the closure device abuts forms an integral part of the frame.
Rocking forces may be applied to the shutter in any convenient way. For example if the ventilator is conveniently located, such forces may be directly applied to the shutter by finger pressure, but preferably at least one cord is attached to said lever portion and said closure portion for the application of said rocking forces. Thus there may be a single cord whose two ends are connected to -respective shutter portions, or there may be a separate cord for each shutter portion. Tension can be applied to an appropriate length of cord to move the shutter into its open or closed positions, and the cord or cords can be tied to a convenient anchorage point to hold the shutter in any intermediate position. Another way of locating the shutter in an intermediate position is to provide stiffness at the pivot so that the shutter is held by friction.
Said cords or cords preferably leads or lead through holes in said frame.
Advantageously, said closure device includes snap-engaging means for retaining said shutter in at least one of its open and closed positions.
A preferred embodiment of the invention will now be described by way of example and in greater detail with reference to the accompanying drawing, which is a vertial section of an embodiment of a closure device fitted to a ventilator according to the invention.
The drawing shows a ventilator comprising three superposed elements 1-3 of glass or moulded plastics, if necessary transparent -- i.e., a top element 1, an intermediate element 2 and a base element 3. The elements 2 and 3 are of identical construction. More particularly, each of the elements 2 and 3 has two lateral faces connected in the central portion by a prismatic wall forming a projection towards the toD and re entrant surface towards the base. The re-entrant surface of the element 2 and the projection of the element 3 co-operate with the lateral faces of such two elements to form a duct through which air can circulate. The configuration of the prismatic w6ll is such that it prevents direct vision through the air-circulating duct.The lower ends of the base element 3 are closed by a plate 4 to prevent mortar from getting into the cavity of such element when the ventilator is positioned in a wall. The top element 1, which is of lesser height, is closed in its upper portion by a wall parallel with the closure plate 4 of the base element 3. To facilitate handling before they are positioned in a wall, the ventilator elements thus assembled can be connected to one another, for example by an adhesive tape or any other suitable means enclosing the four sides of the ventilator.
The closure device is formed by a frame 5 and a shutter 6 which is attached thereto. The base element 3 and the top element 1 of the ventilator are provided with upper and lower latching surfaces against which the ventilator frame can latch. For instance, in the embodiment illustrated the frame comprises two hooking claws'such as 7 which are disposed over the width of the frame and latch into a groove with which the upper portion of the ventilator is formed for this purpose.
As a variant, the claws 7 can quite simply be applied against the inner face of the wall of the element 1. In that case no special groove is provided. As regards the lower portion, the frame comprises two claws such as 8 which clip into two recesses such as 9 with which the ventilator is provided. To assemble the frame thus designed, first of all the upper portion is introduced to the maximum into the groove, whereafter the frame is latched downwards so that the claws 8 engage in the recesses 9 of the lower portion. Clearly, other means performing the same function can be used.
The hooking claws 7 and 8 form claws acting in opposite directions.
If required, the frame can comprise an internal frame adapted to receive a mosquito net.
Moreover, three sides can be formed with a recess for receiving a sealing strip e.g. of cellular material between the face of the ventilator and the closing device frame. Two pivot hubs such as 10 are provided on the frame to enable a pivot axle of the shutter 6 to be latched in.
Th'e shutter 6 comprises a closure portion 11 and a lever portion 12 so disposed on either side of the pivot axis that when the closure device is attached to the ventilator, for example via the frame disclosed herein-before, the shutter can pivot between a position for closing the ventilating duct and an open position.
in the illustrated embodiment, the shutter 6 comprises a closure portion 11 and a lever portion 12 formed by flat plates; these elements are disposed respectiveiy in planes forming an obtuse angle with one another. The assembly of the two elements forms a dihedron which is reinforced by reinforcing ribs taking the form of lateral triangles 1 3 disposed at the ends of the flat plates. The ribs bear pivot stub axles such as 14 which latch into the pivot hubs 10 of the frame 5. The shutter also is formed with two holes 15, 1 6 respectively in the closure portion and lever portion through which a thin cord can pass for the remote control of the opening and closure of the closing device cover; the thin cord must of course be attached to the shutter.Various holes 1 7 are also provided in the frame for passage of such a cord.
The accompanying drawing shows in solid lines the shutter placed in the completely open position.
The completely closed position of the two ventilating ducts is shown in dot-dash lines. In the fully open position, the lever portion 12 bears against a bearing surface of the frame 5 where it is retained by a lip 1 8 which snap-engages with the edge of the lever portion, so that the portion 11, due to the angle formed by the planes of the two shutter portions, is held, far enough away from the frame to allow air to pass. In the fully closed position the closure portion 11 completely closes the ventilating ducts and is held in that position by a lip 1 9 which snap-engages eht edge of the closure portion, and the lever portion 12 is removed from its bearing surface on the frame.
The respective dimensions of the closure and lever portions of the shutter can be selected in accordance with needs, for instance, in relation to the number of ventilating ducts of the ventilator, or in relation to the respective dimensions of such ducts if they are not, as in the accompanying drawing, of identical dimensions. It is even conceivable for the lever element to be placed in line with a ventilating duct, e.g. of smaller dimensions than the ducts which can be closed by the closure portion; in which case closure is never complete, but the flow of air entering can be controlled as required.
Clearly, in all cases the shutter can readily be placed in a position intermediate between the full opening and full closure of the closure device.
The invention is of course not limited to the embodiment illustrated in the accompanying drawing. Numerous modifications can be made to the shape, arrangement and constitution of the elements used without exceeding the scope of the invention, as set forth in the following claims.
As already stated, the embodiment can be simplified by substituting tongues or other appendages performing the same function for the shutter lever portion here formed by a plate. If necessary, the frame of the closure device can be eliminated, and its operative elements can be applied directly to the ventilator via the pivot means connected thereto. It is also possible for the elements of the shutter not be be flat surfaces, but concave, convex or irregular surfaces, depending on the shape of the elements of the closure device or, for example, to have a desired aesthetic effect. Finally, any constructional materials whatever can be used to make the elements of the shutter and if necessary the frame.
on condition that they are suited to the functions which such elements must perform.

Claims (14)

CLAIMS:
1. A ventilator comprising one or more elements of vitreous or plastics material and having at least one ventilating duct closable by a closure device, the closure device comprising a pivoted shutter for obturating the or at least one said duct and means for mounting the shutter to a said ventilator, characterised in that said shutter has a pivot axis located between a shutter closure portion and at least one shutter lever portion, whereby, when the closure device is mounted to a said ventilator, rocking forces can be applied to one of said shutter portions to pivot the shutter into a closed position where its closure portion obturates said duct(s), or to the other of said shutter portions to pivot the shutter into an open position.
2. A ventilator according to Claim 1, characterised in that the shutter is pivotable into an open position in which the or at least one said lever portion abuts against a bearing surface.
3. A ventilator according to Claim 1 or 2, characterised in that one or more ribs are disposed on the closure portion of the shutter.
4. A ventilator according to Claims 2 and 3, characterised in that the or each abutting lever portion comprises a prolongation of the or each rib.
5. A ventilator according to any preceding claim, characterised in that the closure portion and the lever portion are formed by two juxtaposed plates forming a dihedron.
6. A ventilator according to claims 3 and 5, characterised in that the ribs are formed by lateral reinforcing triangles.
7. A ventilator according to any preceding claim, characterised in that the means for mounting the shutter to the ventilator comprises a frame.
8. A ventilator according to Claim 7, characterised in that the frame comprises claws which co-operate with bosses or grooves on the ventilator to ensure attachment.
9. A ventilator according to Claim 8, characterised in that the frame comprises hooking claws acting in opposite directions.
10. A ventilator according to any of Claims 7, 8 and 9 as dependent on Claim 2, characterised in that the bearing surface forms an integral part of the frame.
11. A ventilator according to any preceding claim, characterised in that at least one cord is attached to said lever portion and said closure portion for the application of said rocking forces.
1 2. A ventilator according to Claim 11 and any of Claims 7 to 10, characterised in that said cord(s) lead through holes in said frame.
13. A ventilator according to any preceding claim, characterised in that said closure device includes snap-engaging means for retaining said shutter in at least one of its open and closed positions.
14. A ventilator substantially as herein described with reference to the accompanying drawings.
GB8029378A 1979-09-11 1980-09-11 Ventilators Withdrawn GB2062844A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU81674A LU81674A1 (en) 1979-09-11 1979-09-11 SHUTTER FOR AN AERATOR PROVIDED WITH ONE OR MORE VENTILATION DUCTS AND ASSEMBLY COMPRISING AN AERATOR AND A SHUTTER

Publications (1)

Publication Number Publication Date
GB2062844A true GB2062844A (en) 1981-05-28

Family

ID=19729247

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8029378A Withdrawn GB2062844A (en) 1979-09-11 1980-09-11 Ventilators

Country Status (5)

Country Link
BE (1) BE885096A (en)
DE (1) DE8024051U1 (en)
FR (1) FR2465167A1 (en)
GB (1) GB2062844A (en)
LU (1) LU81674A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017168162A1 (en) * 2016-03-31 2017-10-05 Raymond John Hudson Variable air flow valve
CN109405249B (en) * 2018-10-12 2021-07-23 重庆海尔空调器有限公司 Air conditioner and method for controlling air guide of air conditioner

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH278221A (en) * 1950-02-06 1951-10-15 Roesch Adolf Ventilation device for damp rooms, in particular for livestock stalls.
GB838204A (en) * 1957-07-03 1960-06-22 Svenska Flaektfabriken Ab A mechanical delaying device
RO56671A3 (en) * 1973-06-18 1975-07-15
DE2462070C3 (en) * 1973-04-02 1978-05-11 Institutul Pentru Creatie Stiintifica Si Tehnica, Bukarest Closure flap for an air duct
LU74733A1 (en) * 1976-04-09 1977-11-04

Also Published As

Publication number Publication date
DE8024051U1 (en) 1980-12-04
LU81674A1 (en) 1981-04-17
FR2465167A1 (en) 1981-03-20
BE885096A (en) 1981-03-05

Similar Documents

Publication Publication Date Title
US5293920A (en) Louvered basement vent
US6161225A (en) Shield structure of helmet
US5873780A (en) Air conditioner
US4208010A (en) Ventilator assembly
JPS6325428A (en) Temperature sensitive type automatic ventilator
US4175480A (en) Wall ventilator construction
US4243175A (en) Temperature regulated wall ventilator construction
US5987836A (en) Louver assembly and method for installing a louver assembly
CA2720297A1 (en) Insertable air flow blocking device for ceiling vent diffuser
GB2062844A (en) Ventilators
GB2220473A (en) Window or door ventilator assembly
US4210279A (en) Temperature-responsive automatic ventilator
US5029810A (en) High performance damper blade and damper seal combination
US10184685B1 (en) Air ventilating unit
US4557183A (en) Incrementally adjustable vent
US5957373A (en) Automatic ventilator with manual override
EP0522881B1 (en) Skylight ventilator
KR200258237Y1 (en) Ventilation window
JP6594568B2 (en) Ventilation system member and ventilation fan
EP0274965A1 (en) Manually or automatically adjustable ventilation device for a window of a building
JPH02583Y2 (en)
JPH0443589Y2 (en)
US4520959A (en) Energy saver damper assembly
US4591092A (en) Energy saver damper assembly
GB1572523A (en) Ventilator

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)