EP0060111B1 - An edgewise profiled plate member for a hollow wing-shaped profile and a ventilation damper blade composed of one or two such plate members - Google Patents

An edgewise profiled plate member for a hollow wing-shaped profile and a ventilation damper blade composed of one or two such plate members Download PDF

Info

Publication number
EP0060111B1
EP0060111B1 EP82301146A EP82301146A EP0060111B1 EP 0060111 B1 EP0060111 B1 EP 0060111B1 EP 82301146 A EP82301146 A EP 82301146A EP 82301146 A EP82301146 A EP 82301146A EP 0060111 B1 EP0060111 B1 EP 0060111B1
Authority
EP
European Patent Office
Prior art keywords
edge
plate member
damper
damper blade
section
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
EP82301146A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0060111A2 (en
EP0060111A3 (en
Inventor
Tage Hougaard
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.)
Novenco Building and Industry AS
Original Assignee
Nordisk Ventilator Co
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 Nordisk Ventilator Co filed Critical Nordisk Ventilator Co
Priority to AT82301146T priority Critical patent/ATE17166T1/de
Publication of EP0060111A2 publication Critical patent/EP0060111A2/en
Publication of EP0060111A3 publication Critical patent/EP0060111A3/en
Application granted granted Critical
Publication of EP0060111B1 publication Critical patent/EP0060111B1/en
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
    • F24F13/08—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
    • F24F13/15—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre with parallel simultaneously tiltable lamellae
    • 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

Definitions

  • This invention generally relates to an edgewise profiled, quadrilateral plate member to be used as a wall member in a hollow wing-shaped profile, in particular a damper blade, a guide blade or vane, said plate member being formed into a curved cross-sectional profile by longitudinal rolling and/ or bending.
  • the invention relates to the use of such a hollow profile as a damper blade for a ventilation damper assembly of the type in which a number of substantially rectangular damper blades of wing-shaped cross-sectional profile is pivotally suspended with parallel axes of rotation between opposite frames in a substantially rectangular damper frame for mounting in an apparatus cabinet, in a ventilation duct or in a wall opening, so that the damper blades can be moved between a closing position and an opening position by rotation about said axes.
  • Ventilation damper assemblies of this kind are mainly used as air volume control and damping means as well as mixing dampers when mounted in ventilation ducts of rectangular cross-section, in wall openings or in apparatus cabinets, for instance for an air conditioning central unit in an air conditioning system. Beyond a reliable closing function with respect to sealing and a movement of the damper blades, which as far as possible is free from noise and play, importance is attached to a simple and sturdy design of the damper construction with the lowest possible costs of production for the individual components thereof.
  • each damper blade is composed of two opposed, plate members profiled into a wing-shaped cross-section and being held together by longitudinal nose strips carrying longitudinal lobe seals at the edges of the damper blades, together with an internal clamping thread.
  • a ventilation shutter flap which is composed of two sheet metal strips of different cross-sectional profile, one being formed with bent edge portions along both longitudinal edges to receive edge flanges of the other strip.
  • a simple design and assembling of a hollow wing-shaped profile of the kind mentioned together with the possibility of arranging and fastening a lobe seal directly in the joint between the lateral edges are obtained in that in order to form said hollow profile from either one or two of said plate members a first edge portion along one longitudinal edge of the plate member is bent once into a substantially U-shaped cross-section with an edge flange directed inwardly of the plate member, whereas a second edge portion at the opposite longitudinal edge of the plate member is formed by two successive, oppositely directed bendings into a substantially S-shaped cross-section with an edge flange having an extreme portion for engagement with the edge flange of said first edge portion of the same plate member or another opposed plate member, said edge flanges being locked in said engagement by end members fitting into the internal cross-section of said hollow profile.
  • a damper blade for a ventilation damper assembly of the above mentioned kind is characterized, according to the invention, in that a wall member of the damper blade is made from a rectangular plate member by longitudinal rolling and/or bending into said wing-shaped cross-sectional profile, said plate member being formed along one of its opposite longitudinal edges with a first edge portion bent once into a substantially U-shaped cross-section with an inwardly directed edge flange and at the opposite longitudinal edge with a second edge portion bent by two successive, oppositely directed bendings into a substantially S-shaped cross-section with an edge flange having an extreme portion of the edge flange for engagement with the edge flange of said first edge portion of either the same plate member or another similar plate member, said edge flanges being locked in said engagement by end members fitting into the internal cross-section of the damper blade to receive the rotational shaft of journals of the damper blade.
  • a damper blade may be produced consisting either of a single wall member or being made into double width by joining together two opposed wall members, each of the two edge portions of one wall member being in engagement with the respective opposite edge portion of the other wall member.
  • a sealing strip may be fastened without the use of particular connection means, in that a sealing member is arranged as a lobe seal between opposite sides of the edge flanges of said first and second portion and is clamped by their mutual engagement.
  • a simple ribbon- or strip-shaped member may be used for sealing members, for instance made from rubber with a mainly flat rectangular cross-sectional profile, so that there is no need for an expensive special design of the sealing member.
  • sealing strips may be arranged optionally at one or both longitudinal edges of the damper blade.
  • the invention is not restricted to the production of damper blades of the above mentioned kind, but it may generally find application in the production of hollow profiles having walls made from sheet metal, for instance plate wings for axial flow fans or profiled guide vanes or blades for centrifugal fans.
  • Fis. 6 a cross-sectional view of another embodiment of the damper blade.
  • the damper assembly shown in Figs. 1 and 2 is mounted in a rectangular, in the present case almost quadrilateral damper frame comprising frame members 1 to 4 made from bent sheet profiles of a substantially flat, U-shaped cross-section, so that either frame member as shown at 5 and 6 for the frame member 1 is provided with edge flanges to secure the damper frame either to a ventilation duct having the same flow passage area and cross-sectional shape or to a wall- opening or an opening in the side or end wall of an apparatus cabinet, for instance for a central unit in an air conditioning system in which one or more fans, air humidifiers, filters and/or heating members may be arranged.
  • damper blades 7 to 10 of wing-shaped cross-sectional profile are rotatably suspended in the damper frame with parallel axes of rotation between to opposite lateral frame members 1 and 3, an end member 11 being provided at either end of each damper blade as shown in Figs. 4 and 5 and comprising a journal 12 positioned with sliding fit in a bushing 13 drawn up in the sheet member of the frame member.
  • Figs. 1 and 2 the damper blades 7 to 10 are shown in a central position between a closing position in which the damper blades extend transverse to the flow direction and block the flow passage area, and an opening position in which the damper blades 7 to 10 are substantially parallel to the flow direction.
  • damper blades 7 to 10 are interconnected with respect to movability through a drive mechanism including a coupling bar 15, a pivot arm 16 positioned behind the coupling bar 15 being rotatably connected with the coupling bar 15 and secured to one of the journals for each damper blade.
  • Fig. 3 the cross-sectional profile of a first embodiment of a damper blade according to the invention is shown.
  • the damper blade is made up of a single wall member 17 from sheet metal, said member having been formed into the wing-shaped cross-sectional profile illustrated in the figure by longitudinal rolling through a series of roller stations.
  • the profile shape may further be performed by a combination of longitudinal rolling and subsequent bending.
  • the wall member 17 is formed at one longitudinal edge with a first edge portion 18 having an edge flange 19 bent once towards the interior of the damper blade, so that the edge portion 18 obtains a substantially U-shaped cross-section with its opening facing the interior of the damper blade.
  • the damper blade For engagement with the first edge portion 18 the damper blade is formed at its other longitudinal edge with a second edge portion 20 having an edge flange 21 bent towards the interior of the damper blade so as to obtain a substantially S-shaped cross-section.
  • edge portions 18 and 20 with the flanges 19 and 21 into the illustrated cross-sectional shape and the forming of slight, longitudinal bendings in the wall member as shown at 22 and 23 to obtain the desired wing-shaped cross-sectional profile as well as bending or folding as shown at 24 can be carried out in one and the same rolling operation so that the edge portions 18 and 20 will be positioned opposite each other.
  • a sealing member 25 which may be made, for instance as shown by a ribbon- or strip-shaped member of rubber of substantially flat or rectangular cross-sectional profile as a lobe seal between two sides of the edge flanges 19 and 21 facing each other
  • the edge portions 18 and 20 are put into engagement with each other by squeezing them together by an external pressure against the sides of the profile.
  • the plate member having edge flanges due to the profile shape produced as mentioned has a certain spring action
  • the said squeezing causes the extreme portion 21 a of the edge frame 21 to be pressed over the free edge of the edge flange 19.
  • the extreme portion 21a of the edge flange 21 will be pressed against the bottom of the U-shaped cross-section of the edge portion 18 due to the spring action with its free edge in engagement with the wall member opposite the edge flange 19.
  • the damper blade is finished by inserting at either end, subsequent to the release of the external pressure, an end member 26 as shown in Figs. 4 and 5 having a form fitting into the internal cross-sectional profile of the damper blade.
  • the end member 26 In its outermost portion the end member 26 has a bottom part 26a covering the edge of the wall member 17 and in which a slit, not shown, is provided for the sealing strip 25.
  • the bottom part 26a has a curved external surface the function of which forms the subject matter of Applicant's copending application, EP-A-0,060,112.
  • the end member 26 has a fitting part 26b corresponding to the internal cross-sectional profile of the damper blade and having lateral surfaces in engagement with the internal surfaces of the wall member 17 and with the valley of the S-shaped edge flange 21 located at the extreme part 21a and facing the interior of the damper blade.
  • Said locking engagement further provides for obtaining a firm squeezing of the sealing strip 25 which by virtue of its elasticity further keeps the edge flange 19 pressed outwardly towards the opposed part of the wall member 17, thereby contributing to firmly clamp the extreme part 21 a of the edge flange 21 in the opening of the U-shaped cross-section of the edge portion 18.
  • the damper blade shown in Fig. 6 is composed of two wall members 30 and 31 which may be formed in a rolling operation in the same manner as the wall member 17 in Fig. 3 but without being subjected to any bending or folding as shown at 24 in Fig. 3.
  • Each of the wall members 30 and 31 comprises a first edge portion 32 and 33, resp., having the same shape as the edge portion 18 in the embodiment shown in Fig. 3 and a second edge portion 34 and 35, resp., shaped mainly as the edge portion 20 in the embodiment shown in Fig. 3, the extreme part 35a of the second edge portion 35 for the wall member 31 showing, however, a more pronounced bending than the extreme part 34a of the second edge portion 34 of the wall member 30.
  • the wall members 30 and 31 are connected by initially providing engagement between the edge portions 32 and 35 by locating and fastening the extreme part 35a of the edge portion 35 in the opening of the U-shaped cross-section of the edge portion 32. After the arrangement of a sealing strip 36 having the same shape as the sealing strip 25 in Fig. 3, engagement is effected between the edge portions 32 and 35 as well as the opposite edge portions 33 and 34 by the same operation as described above, during which end members, not shown, are simultaneously inserted in the same manner as for the embodiment shown in Fig. 3 to hold the edge portions in place in mutual engagement.
  • a damper blade is formed by a simple construction without the use of any particular connecting means, which is composed solely of one or two wall members, two end members matching thereto and, possibly, one or two longitudinal sealing strips.
  • a particular advantage is the possibility of forming a damper blade by folding a single wall member or a damper blade having double width by using two wall members without changing the form of the wall members.
  • the invention may generally be applied to the design of hollow wing-shaped profiles having walls consisting of quadrilateral plate members, particularly for plate wings for use in axial flow fans whereby the plate members may have an oblong trapezoidal form or for guide vanes and blades for centrifugal fans.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Building Environments (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Secondary Cells (AREA)
  • Finishing Walls (AREA)
EP82301146A 1981-03-06 1982-03-05 An edgewise profiled plate member for a hollow wing-shaped profile and a ventilation damper blade composed of one or two such plate members Expired EP0060111B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82301146T ATE17166T1 (de) 1981-03-06 1982-03-05 Ein von der seite her gesehen profiliertes organ aus blech fuer ein hohles fluegelfoermiges profil und eine drosselklappe fuer lueftungsanlagen, die von einem oder zwei solcher bleche gebildet ist.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK103281A DK103281A (da) 1981-03-06 1981-03-06 Kantprofileret pladeelement til anvendelse som vaegelement i et vingeformet hulrumsprofil og spjaeldblad til et ventilationsspjaeld udformet af et eller to saadanne pladeelemnter
DK1032/81 1981-03-06

Publications (3)

Publication Number Publication Date
EP0060111A2 EP0060111A2 (en) 1982-09-15
EP0060111A3 EP0060111A3 (en) 1983-01-12
EP0060111B1 true EP0060111B1 (en) 1985-12-27

Family

ID=8100223

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82301146A Expired EP0060111B1 (en) 1981-03-06 1982-03-05 An edgewise profiled plate member for a hollow wing-shaped profile and a ventilation damper blade composed of one or two such plate members

Country Status (6)

Country Link
EP (1) EP0060111B1 (da)
AT (1) ATE17166T1 (da)
DE (1) DE3268072D1 (da)
DK (1) DK103281A (da)
FI (1) FI820762L (da)
NO (1) NO151799C (da)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2185307B (en) * 1986-01-10 1989-11-08 Hunter Int Ltd Improvements in or relating to a damper
GB2190739A (en) * 1986-05-23 1987-11-25 Beta Naco Limited Seals for louvre blades
EP0331533B1 (fr) * 1988-02-26 1992-07-29 La Tolerie Industrielle Volet de registre de dosage notamment pour installation de climatisation
FR2627836B1 (fr) * 1988-02-26 1990-04-27 Tolerie Ind Volet de registre de dosage notamment pour installation de climatisation
FR2627837A1 (en) * 1988-02-26 1989-09-01 Tolerie Ind Foam cored vane to measure air flow to air conditioning system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2039361A (en) * 1978-11-22 1980-08-06 Actionair Equip Ventilating damper

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2208259C3 (de) * 1972-02-22 1983-12-15 Adam, Martin, 4628 Lünen Mit einer einen Luftstrom erzeugenden Vorrichtung zusammenwirkende Lüftungsjalousie
DE7727911U1 (de) * 1977-09-09 1978-01-05 Siegwart, Emil, 6603 Sulzbach Verschlussklappe fuer lufttechnische anlagen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2039361A (en) * 1978-11-22 1980-08-06 Actionair Equip Ventilating damper

Also Published As

Publication number Publication date
EP0060111A2 (en) 1982-09-15
DE3268072D1 (en) 1986-02-06
DK103281A (da) 1982-09-07
ATE17166T1 (de) 1986-01-15
NO151799B (no) 1985-02-25
FI820762L (fi) 1982-09-07
NO820706L (no) 1982-09-07
NO151799C (no) 1985-06-05
EP0060111A3 (en) 1983-01-12

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