EP1022520B1 - System for realizing the coupling of duct sections for air conditioning systems - Google Patents

System for realizing the coupling of duct sections for air conditioning systems Download PDF

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Publication number
EP1022520B1
EP1022520B1 EP00101337A EP00101337A EP1022520B1 EP 1022520 B1 EP1022520 B1 EP 1022520B1 EP 00101337 A EP00101337 A EP 00101337A EP 00101337 A EP00101337 A EP 00101337A EP 1022520 B1 EP1022520 B1 EP 1022520B1
Authority
EP
European Patent Office
Prior art keywords
wall
structural
sections
angular
coupling
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 - Lifetime
Application number
EP00101337A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1022520A2 (en
EP1022520A3 (en
Inventor
Giuseppe Librizzi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1022520A2 publication Critical patent/EP1022520A2/en
Publication of EP1022520A3 publication Critical patent/EP1022520A3/en
Application granted granted Critical
Publication of EP1022520B1 publication Critical patent/EP1022520B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F17/00—Vertical ducts; Channels, e.g. for drainage
    • E04F17/04—Air-ducts or air channels
    • 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
    • F24F13/0209—Ducting arrangements characterised by their connecting means, e.g. flanges

Definitions

  • the present invention relates to a system, and an angular element used in it, for the mutual fixing of sections of a duct for conveying air in air conditioning systems, where for air conditioning also simple heating and/or ventilation are intended, in particular for those ducts being obtained starting from polyurethane foamed plates.
  • the ducts for air conditioning systems are generally obtained using squared or rectangular sections made of insulating material coupled to each other.
  • connection between the various sections must be strong and of easy execution. Moreover, such a connection must be hermetically sealed as much as possible, in order to avoid leakage or blow-by of the air passing in the canalization; finally, it should also have an aesthetical appearance, since these canalizations are often placed in sight.
  • Said methods provide the assembly of structural elements on the section headers and then using other appropriately shaped structural elements, which engage the elements mounted on the headers and keep the sections jointed between them.
  • Such structural joining elements are generally inserted in a seat defined by the interacting projections and/or recesses, resulting from the shape of the structural elements mounted on the headers when coupled for connecting the two sections together.
  • the length of the structural joining elements is generally equal to the length of the structural elements mounted on the sections headers.
  • angles of the joint coupling the ducts are normally open, since the length of the structural elements mounted on the headers is equal to the duct internal size.
  • plastic angles hooked to the structural elements are used to cover such openings.
  • the invention achieves the object of connecting the individual lengths of pipe to one another.
  • the insertion of the structural joining elements results in being quite difficult, since the seat defined by the interacting projections and/or recesses resulting from the shape of the structural elements mounted on the headers, is dependent on the shape of the sections, i.e. on their size and orthogonal shaping.
  • the orthogonal shaping and the dimensions are not always constant, as they change with the small differences arising during the manufacture of the section.
  • the differences may be due to the thickness of the panel used to manufacture the section, or to the cutting position of the angles for its bending and shaping.
  • reference 1 indicates a first section of a duct
  • reference 2 indicates a second section of a duct to be coupled with said first section
  • reference 3 indicates a structural element mounted on the headers of sections 1 and 2
  • reference 4 indicates a structural element for the mutual coupling of said sections 1 and 2 for obtaining the canalization.
  • Reference 5 indicates a sealing gasket for hindering the air leakage of the air flowing inside the duct.
  • Such a gasket 5 extends all along the coupling outline of the two ducts.
  • reference 1 indicates the section and reference 3 a structural element mounted on the header of the section 1.
  • the structural element 3 is topped over the header of section 1, by inserting the section 1 in a recess delimited by two small wings indicated by 6 and 7, being parallel to each other.
  • the structural element is firmly held on the section 1 by two saw-tooth indentations 8 and 9 obtained on the internal surface of wings 6 and 7.
  • the length of the structural element 3 is equal to the internal width of the side of the duct on which the structural element is mounted.
  • the head or abutment of the structural element 3 is simply obtained by means of a straight cut perpendicular to the length of the structural element, thus avoiding any abutments requiring extra operations after cutting the length of the structural element.
  • the depth of insertion of the section 1 in the structural element 3 is given by a wall 10 being vertical with respect to the wings 6 and 7, delimiting their length.
  • This first projection 11 has a small tooth 11A protruding over the vertical wall 12.
  • the wall 13 also has a small tooth 13A, whose dimensions equal those of the tooth 11A; as a result, a recess 12A (see figure 1) will be formed for housing the air sealing gasket 5 when connecting the structural elements 3 mounted on the headers of the two sections to be coupled together.
  • the recess 12A allows the assembly of the gasket 5 in a location predetermined and delimited by the structural element 3, for making its positioning during the assembly easier.
  • a tooth 14 is provided, having the shape of an upturned L; the end of the horizontal wing 14A has a length so that, when it is approached to the corresponding wing of the structural element 3 mounted on the other header of the section to be coupled, a free space will be formed to let the stem of the upturned T of a structural joining element 4 go through (see figure 1).
  • the vertical stem of the tooth 14 is connected with a horizontal portion 14B to the wall 10, the horizontal portion 14B substantially departing from half the height of said vertical stem.
  • a recess 15 is then defined by walls 10, 12, 13 and the first projection 11.
  • a second projection 16 departs, being an extension of the wing 6, in parallel to said first projection 11 and ending at the height of the teeth 11A and 13A.
  • references 1 and 2 indicate the two coupled sections
  • reference 3 indicates the structural element mounted on the headers of sections 1 and 2
  • reference 4 indicates a structural element for joining said sections 1 and 2 and obtain the canalization
  • reference 20 indicates an angular element for closing the openings, which lie on the four angles of the joining and which result from the coupling of the two sections obtained through the structural elements 3, which have smaller dimensions than the length of the side of the sections.
  • reference 4 indicates the structural joining element.
  • This structural joining element 4 has a wall 17 whose ends are provided with two wings 18 and 18' perpendicular to the wall 17.
  • An upturned T-shaped structural element 19 is defined in the centre of the wall 17.
  • the height of wings 18 and 18' is substantially equal to the height resulting between the top of the horizontal portion 14A of the tooth 14 and the second projection 16 of the structural element 3, but is shorter than the length of the stem of the upturned T.
  • the structural joining element 4 may be inserted also in the instance of the structural elements 3 being slightly out-of-axis on the headers of the sections to be connected to each other, since it can be inserted slightly inclined.
  • the structural joining element 4 is longer than the structural element 3 topped over the header of the section, so as to protrude over one end of the structural elements 3.
  • the structural joining element 4 has to protrude over one end of the structural element 3 to a certain extent; this will make it possible for a tool, such as a pliers, to grip it and draw it out of its seat when dismantling a portion of the canalization for repair purposes.
  • the protruding portion of the structural jointing element 4 should be smaller than the wall thickness of the duct, in order to avoid interfering with the assembly of an angular element 20 described later.
  • a removal of the structural joining element 4 may also occur in those situations where the duct is located in a comer between the ceiling and a wall, since it can be drawn out in parallel to the ceiling and the wall; as a result, replacement and/or repair of a section of the duct will be easier.
  • reference 20 indicates an angular element for closing the openings which lie on the four angles of the joint and which result from the coupling of the two sections through the structural elements 3, whose dimensions are smaller than the length of the sides of the sections.
  • the angular element may also have a joining function of the two sections of the canalization as described later.
  • This angular element has two walls 20A and 20B perpendicular to each other, which form a substantially "L"-shaped.
  • the extensions 21 and 22 have a reinforcing element 23 for the connection to the wall 20B, so making them integral to both the walls 20A and 20B of the angular element.
  • the length of the walls 20A and 20B is substantially equal to the thickness of the material forming the ducts wall, whereas the width is substantially equal to twice the measurement resulting from the sum of the depths of wings 6 and 16.
  • the width of extensions 21 and 22 is suitable for insertion in the recess 15 of the structural element 3 (see figure 2).
  • the internal distance D between the vertical portions 21B and 22B of extensions 21 and 22 is such that, when they are completely inserted within the recesses 15, they create an approaching of the two structural elements 3, so that the two structural elements 3 match each other realizing the coupling of the sections (see figure 6).
  • Two pins 24 are indicated with reference to a preferred embodiment of the invention, which depart perpendicularly from the wall 20A and are shorter than the thickness of the material forming the wall of the duct.
  • pins 24 have a substantially tapered end in order to facilitate their insertion in the duct material when mounting the angular element 20, also in those instances where the duct is coated with a thin aluminium foil. Their function is to hinder a removal of the angular element 20 from its seat after it has been assembled.
  • the insertion of the extensions 21 and 22 of the angular element 20 in the respective recess 15 allows for keeping the two sections joined together, while the two pins 24, i.e. one driven in the section 1 and the other in section 2, lock the coupling position so hindering a removal of the angular element 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Duct Arrangements (AREA)
  • Central Air Conditioning (AREA)
  • Details Of Indoor Wiring (AREA)
  • Electric Cable Installation (AREA)
  • Joints Allowing Movement (AREA)
EP00101337A 1999-01-25 2000-01-24 System for realizing the coupling of duct sections for air conditioning systems Expired - Lifetime EP1022520B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1999TO000008U IT247890Y1 (it) 1999-01-25 1999-01-25 Sistema di realizzazione dell'accoppiametno di tronconi di condotto diimpianti di condizionamento dell'aria nonche' elemento angolare
ITTO990008U 1999-01-25

Publications (3)

Publication Number Publication Date
EP1022520A2 EP1022520A2 (en) 2000-07-26
EP1022520A3 EP1022520A3 (en) 2001-05-23
EP1022520B1 true EP1022520B1 (en) 2005-03-23

Family

ID=11417315

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00101337A Expired - Lifetime EP1022520B1 (en) 1999-01-25 2000-01-24 System for realizing the coupling of duct sections for air conditioning systems

Country Status (4)

Country Link
EP (1) EP1022520B1 (it)
AT (1) ATE291724T1 (it)
DE (1) DE60018819T2 (it)
IT (1) IT247890Y1 (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20010988A1 (it) * 2001-10-17 2003-04-17 Giuseppe Librizzi ,,apparato per la realizzazione di raccordi per condotti di impianti di condizionamento dell'aria, nonche' relativo metodo di realizzazione
EP2053320A1 (en) * 2007-10-24 2009-04-29 P3 S.r.l. Joint system for joining ends of panels made of insulated material
EP2535657A1 (de) * 2011-06-14 2012-12-19 Centrotherm Systemtechnik GmbH Modulares Fluidleitungsbauteil

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1459902A1 (de) * 1964-11-25 1968-11-21 Brunotte Kg H Verbindungsanordnung fuer Wandelemente eines Montagehauses und Montagehaus
BE710746A (it) * 1968-02-14 1968-06-17
US3640039A (en) * 1969-05-05 1972-02-08 Ball Corp Building structure
IT213427Z2 (it) * 1987-12-01 1989-11-27 B A L F Di Griggio & C S N C Canalizzazione con agganci in spessore.
MY108560A (en) * 1988-03-15 1996-10-31 Artwright Ind Sdn Bhd Panel surface end for system furniture
US5007222A (en) * 1988-11-14 1991-04-16 Raymond Harry W Foamed building panel including an internally mounted stud
IT1242490B (it) * 1989-10-26 1994-03-17 Giuseppe Librizzi Sistema di canalizzazione aerea e mezzi di attuazione della congiunzione tra tronchi di canalizzazione.

Also Published As

Publication number Publication date
IT247890Y1 (it) 2002-09-16
EP1022520A2 (en) 2000-07-26
ATE291724T1 (de) 2005-04-15
ITTO990008U1 (it) 2000-07-25
EP1022520A3 (en) 2001-05-23
DE60018819D1 (de) 2005-04-28
DE60018819T2 (de) 2006-01-26

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