EP0165908A2 - A coupling point for central air-extraction systems - Google Patents

A coupling point for central air-extraction systems Download PDF

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Publication number
EP0165908A2
EP0165908A2 EP85830054A EP85830054A EP0165908A2 EP 0165908 A2 EP0165908 A2 EP 0165908A2 EP 85830054 A EP85830054 A EP 85830054A EP 85830054 A EP85830054 A EP 85830054A EP 0165908 A2 EP0165908 A2 EP 0165908A2
Authority
EP
European Patent Office
Prior art keywords
tubular element
base
insert
coupling point
hole
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.)
Granted
Application number
EP85830054A
Other languages
German (de)
French (fr)
Other versions
EP0165908A3 (en
EP0165908B1 (en
Inventor
Augusto Cattani
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.)
Esam SpA
Original Assignee
Esam SpA
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 Esam SpA filed Critical Esam SpA
Priority to AT85830054T priority Critical patent/ATE48750T1/en
Publication of EP0165908A2 publication Critical patent/EP0165908A2/en
Publication of EP0165908A3 publication Critical patent/EP0165908A3/en
Application granted granted Critical
Publication of EP0165908B1 publication Critical patent/EP0165908B1/en
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/38—Built-in suction cleaner installations, i.e. with fixed tube system to which, at different stations, hoses can be connected

Definitions

  • the invention described herein relates to a coupling point for central air extraction systems.
  • Such a coupling point is intended in particular, though not exclusively, to produce an airtight fit between the hose of a suction appliance and the central extraction system, and thus provide the means whereby the former is connected to the latter.
  • the object of the invention described herein is that of providing a coupling point for central air-extraction systems which, whether flush- or surface-mounted, embodies features of a design and of a functional nature which render application simple and troublefree.
  • 1 denotes the vertical wall of a building into which a base 2, fashioned from plastic material and incorporating a centrally-located hollow cylindrical socket 3, is sunk and fixed.
  • base-insert 5 denotes a base-insert of substantially flat shape which is offered to the base 2 and fixed thereto by means of screws 4.
  • the rear of the base-insert 5 exhibits a protruding tubular element 6 of cylindrical shape which is centrally located and fits into the hollow cylindrical socket 3, whilst the front of the base-insert 5 exhibits a protruding rim 7, coaxial and integral with the open front end of the tubular element and extending forward therefrom.
  • a flat shutter 8 located flush against the outermost edge of the protruding rim 7 is designed to slide relative thereto through a vertical path.
  • the shutter 8 is provided at its bottom end with a hole 9 of diameter not less than the internal diameter of the cylindrical tubular element 6, and is guided and held flush against the protruding rim 7 during its sliding motion by means of guides incorporated into a retaining-component 11 which fits over the base-insert 5. Both the retaining-component 11 and the base-insert 5 are made fast to the base 3 by way of screws 4.
  • the shutter 8 which is capable of motion through a vertical path as aforesaid, is furnished at its top end with a projection 13 by means of which to impart such motion.
  • the bottom end of the shutter 8 has a protruding lip 14 embodied such as to make contact, when slid upwards, with the rim 7 at the open end of the tubular element 6; that is, the lip 14 acts as a mechanical stop which determines the limit on upward travel of the shutter 8, and in addition, serves to ensure alignment of the shutter hole 9 with the open end of the tubular element 6 on arrival at this limit.
  • access to the socket and alignment of the shutter hole 9 with the open end of the tubular element 6 are rendered simple, and there is no possibility of the shutter's being separated from its seating when slid upwards to provide access to the socket.
  • the flush fit between the outermost surface of the protruding rim 7 and the rear face of the shutter 8 is such as to provide an efficient, airtight seal.
  • the base 2 is fitted to the open front of a box, or pattress 20.
  • a coupling point according to the invention thus affords simple access to and closure of the socket, with nothing more required than to slide the shutter 8 upwards or down by hand, utilizing the projection 13 as a handle.

Landscapes

  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Surgical Instruments (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
  • Massaging Devices (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • External Artificial Organs (AREA)
  • Endoscopes (AREA)

Abstract

@ The invention relates to a coupling point for central air-extraction systems, and comprises: a base (2), fixed either direct to the wall or to the open side of a pattress (20) and having a hollow cylindrical socket (3); a base-insert (5) whose rear face exhibits a protruding tubular element (6) which fits coaxially into the hollow cylindrical socket (3); a flat shutter (8) which slides transversely across the open front end of the tubular element (6), is provided at one end with a hole (9) of diameter no less than the internal diameter of the tubular element (6), and is guided by a retaining-component (11) fitted to the front of the base-insert (5); and an outer panel (12) fitted over the retaining-component (12).

Description

  • The invention described herein relates to a coupling point for central air extraction systems.
  • Such a coupling point is intended in particular, though not exclusively, to produce an airtight fit between the hose of a suction appliance and the central extraction system, and thus provide the means whereby the former is connected to the latter.
  • In existing wall-mounted coupling points of the type, \ which are either flush- or surface-fitting, the actual socket part of the assembly, into which the end of the suction appliance hose inserts, is closed off by a hinged flap, rotatable about a fixed axis which in most instances is located directly above the socket. Such coupling points are difficult to use in practice, precisely because of the swinging action of the hinged flap.
  • The object of the invention described herein is that of providing a coupling point for central air-extraction systems which, whether flush- or surface-mounted, embodies features of a design and of a functional nature which render application simple and troublefree.
  • The object stated, and other objects besides, may be realised with the invention disclosed, which relates to a coupling point for central air-extraction systems, characterised in that it comprises:
    • - a base, fixed either direct to the wall or to the open side of a pattress, and incorporating a centrally-located hollow cylindrical socket;
    • - a base-insert of substantially flat shape whose rear face exhibits a centrally-located protruding tubular element of cylindrical shape which fits coaxially into the hollow cylindrical socket and is allowed a pre-determined degree of clearance relative thereto, and whose front face exhibits a protruding rim which is integral with and extends forward coaxially from the open front end of the tubular element;
    • - a flat shutter which slides transversely across the open front end of the cylindrical tubular element while making direct contact with the protruding rim offered by said element, is provided at one end with a hole of diameter no less than the internal diameter of the cylindrical tubular element, and is guided and held flush against the protruding rim during its transverse sliding motion by guides incorporated into a retaining-component fitted frontally to the base-insert and fixed to the base in the same fashion as the base-insert;
    • - an outer panel fitted frontally over the retaining-component.
  • Two preferred embodiments of the invention will now be described in detail, by way of example, with the aid of the accompanying drawings, in which:
    • fig 1 shows a cutaway of the first embodiment of the invention, seen in perspective;
    • fig 2 is a vertical elevation of the embodiment shown in fig 1;
    • fig 3 is the section through II-II in fig 2;
    • fig 4 is a similar section to that shown in fig 3, taken through the second embodiment of the invention.
  • Referring to the drawings, 1 denotes the vertical wall of a building into which a base 2, fashioned from plastic material and incorporating a centrally-located hollow cylindrical socket 3, is sunk and fixed.
  • 5 denotes a base-insert of substantially flat shape which is offered to the base 2 and fixed thereto by means of screws 4. The rear of the base-insert 5 exhibits a protruding tubular element 6 of cylindrical shape which is centrally located and fits into the hollow cylindrical socket 3, whilst the front of the base-insert 5 exhibits a protruding rim 7, coaxial and integral with the open front end of the tubular element and extending forward therefrom.
  • A flat shutter 8 located flush against the outermost edge of the protruding rim 7 is designed to slide relative thereto through a vertical path. The shutter 8 is provided at its bottom end with a hole 9 of diameter not less than the internal diameter of the cylindrical tubular element 6, and is guided and held flush against the protruding rim 7 during its sliding motion by means of guides incorporated into a retaining-component 11 which fits over the base-insert 5. Both the retaining-component 11 and the base-insert 5 are made fast to the base 3 by way of screws 4.
  • 12 denotes an outer panel which fits over the retaining-component 11.
  • The shutter 8, which is capable of motion through a vertical path as aforesaid, is furnished at its top end with a projection 13 by means of which to impart such motion. The bottom end of the shutter 8 has a protruding lip 14 embodied such as to make contact, when slid upwards, with the rim 7 at the open end of the tubular element 6; that is, the lip 14 acts as a mechanical stop which determines the limit on upward travel of the shutter 8, and in addition, serves to ensure alignment of the shutter hole 9 with the open end of the tubular element 6 on arrival at this limit. Thus, access to the socket and alignment of the shutter hole 9 with the open end of the tubular element 6 are rendered simple, and there is no possibility of the shutter's being separated from its seating when slid upwards to provide access to the socket.
  • The flush fit between the outermost surface of the protruding rim 7 and the rear face of the shutter 8 is such as to provide an efficient, airtight seal.
  • 15 denotes a radially-disposed through hole in the tubular element 6, located near to its open front end, which accommodates the plunger 16 of a switch 17 housed in a space existing between the base 2 and the base-insert 5. The switch plunger 16 is seated in the radial hole 15 in such a way as to remain proud of the inner cylindrical surface of the tubular element 6 which accommodates the end of an appliance connecting-hose when inserted. Insertion of such a hose will cause the plunger 16 to shift and engage the switch 17, which triggers start-up of the extraction system to which the coupling point is connected via a system conduit 18. 19 denotes an 0-ring type seal seated in a groove located at the rear end of the tubular element 6, which ensures an airtight fit between the respective outer and inner cylindrical surfaces of the tubular element 6 1 and the socket 3.
  • In the surface-mounted embodiment illustrated in fig 4, the base 2 is fitted to the open front of a box, or pattress 20. In this instance the system conduit 18, instead of being sunk into the wall, exits from the bottom side of the pattress.
  • A coupling point according to the invention thus affords simple access to and closure of the socket, with nothing more required than to slide the shutter 8 upwards or down by hand, utilizing the projection 13 as a handle.

Claims (4)

1) A coupling point for central air-extraction systems, characterised in that it comprises:
- a base (2), fixed either direct to the wall or to the open side of a pattress (20), and incorporating a centrally-located hollow cylindrical socket (3);
- a base-insert (5) of substantially flat shape whose rear face exhibits a centrally-located protruding tubular element (6) of cylindrical shape which fits coaxially into the hollow cylindrical socket (3) and is allowed a pre-determined degree of clearance relative thereto, and whose front face exhibits a protruding rim (5) which is integral with and extends forward coaxially from the open front end of the tubular element (6);
- a flat shutter (8) which slides transversely across the open front end of the cylindrical tubular element (6) whilst making direct contact with the protruding rim (7) offered by said element, is provided at one end with a hole (9) of diameter no less than the internal diameter of the cylindrical tubular element (6), and is guided and held flush against the protruding rim (7) during its transverse sliding motion by guides incorporated into a retaining-component (11) fitted frontally to the base-insert (5) and fixed to the base (2) in the same fashion as the base-insert;
- an outer panel (12) fitted frontally over the retaining-component (11).
2) A coupling point as in claim 1, wherein the shutter (8), which is capable of sliding motion through a vertical path, exhibits a projection (13) at its top end by way of which to impart such motion, and a protruding lip (14) issuing from the periphery of the hole (9) at its bottom end, which makes contact with the protruding rim (7) issuing from the open front end of the tubular element (6), thereby functioning as a mechanical stop limiting travel of the shutter (8) when sliding upwards and ensuring alignment of the hole (9) with the open front end of the tubular element.
3) A coupling point as in claim 1, wherein the tubular element (6) of the base-insert (5) comprises a radially-disposed through hole (15) which accommodates the plunger (16) or other sensing component of a switch (17) housed in a space existing between the base (2) and the base-insert (5); and wherein the plunger (16) is seated in the radial hole (16) in such a way as to remain proud of the inner cylindrical surface of the tubular element (6), thereby occasioning engagement of the plunger (16) by contact with the end of a suction appliance connecting-hose upon insertion of such a hose into the open front end of the tubular element.
4) A coupling point as in claim 1 wherein the base-insert (5) incorporates an annular groove located in that part of the tubular element (6) accommodated by the hollow socket (3) located in the base (2), in order to seat an 0-ring type seal (19) the purpose of which is to ensure an airtight fit between the respective outer and inner cylindrical surfaces of said tubular element and said socket.
EP85830054A 1984-06-19 1985-02-28 A coupling point for central air-extraction systems Expired EP0165908B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85830054T ATE48750T1 (en) 1984-06-19 1985-02-28 CONNECTION FOR CENTRAL VACUUM SYSTEMS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2898484U 1984-06-19
IT8428984U IT8428984V0 (en) 1984-06-19 1984-06-19 PLUG INLET FOR CENTRALIZED SUCTION SYSTEMS

Publications (3)

Publication Number Publication Date
EP0165908A2 true EP0165908A2 (en) 1985-12-27
EP0165908A3 EP0165908A3 (en) 1987-08-19
EP0165908B1 EP0165908B1 (en) 1989-12-20

Family

ID=11225395

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85830054A Expired EP0165908B1 (en) 1984-06-19 1985-02-28 A coupling point for central air-extraction systems

Country Status (6)

Country Link
EP (1) EP0165908B1 (en)
AT (1) ATE48750T1 (en)
AU (1) AU3951185A (en)
DE (1) DE3574822D1 (en)
ES (1) ES285607Y (en)
IT (1) IT8428984V0 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5107670A (en) * 1990-01-16 1992-04-28 Zinser Textilmaschinen Gmbh Spinning apparatus service carriage with pneumatic waste collection and disposal
US5504967A (en) * 1994-03-03 1996-04-09 Bernard J. Graham Vacuum operated cleaning apparatus
EP0916301A1 (en) * 1997-11-18 1999-05-19 Aldes Aeraulique Plug-in unit for latching a suction pipe for a vacuum cleaner in a centralized vacuum cleaning installation
DE19940663A1 (en) * 1999-08-27 2001-03-15 Rolf Ferstl Operating and installation system for central vacuum cleaning system has control switch socket with integral chip card reader, and central control and monitoring unit
US6459056B1 (en) 1999-03-05 2002-10-01 Bernard John Graham Cleaning apparatus for central vacuum system
US9237832B2 (en) 2012-05-31 2016-01-19 Ivd Global Corporation Illuminated inlet for vacuum cleaning apparatus
US9254070B2 (en) 2012-05-31 2016-02-09 Ivd Global Corporation Inlet for vacuum cleaning apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1258956A (en) * 1986-05-23 1989-09-05 Oscar P. Muser Inlet to valve mounting bracket assembly for central vacuum systems
WO1988004535A1 (en) * 1986-12-22 1988-06-30 Central Vac (Int.) Pty. Ltd. Improvements in central vacuuming systems

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1118594A (en) * 1912-07-02 1914-11-24 Spencer Turbine Cleaner Company Valve.
US1717471A (en) * 1925-07-06 1929-06-18 Ira H Spencer Outlet fixture for pneumatic systems
US1730870A (en) * 1925-05-15 1929-10-08 Ralph W Wilson Shaker cap
US3076068A (en) * 1960-04-11 1963-01-29 Carl E Racklyeft Wall fitting and control for vacuum cleaning systems
US3483503A (en) * 1968-03-20 1969-12-09 Dominick Paradiso Vacuum cleaner wall adapter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1118594A (en) * 1912-07-02 1914-11-24 Spencer Turbine Cleaner Company Valve.
US1730870A (en) * 1925-05-15 1929-10-08 Ralph W Wilson Shaker cap
US1717471A (en) * 1925-07-06 1929-06-18 Ira H Spencer Outlet fixture for pneumatic systems
US3076068A (en) * 1960-04-11 1963-01-29 Carl E Racklyeft Wall fitting and control for vacuum cleaning systems
US3483503A (en) * 1968-03-20 1969-12-09 Dominick Paradiso Vacuum cleaner wall adapter

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5107670A (en) * 1990-01-16 1992-04-28 Zinser Textilmaschinen Gmbh Spinning apparatus service carriage with pneumatic waste collection and disposal
US5504967A (en) * 1994-03-03 1996-04-09 Bernard J. Graham Vacuum operated cleaning apparatus
EP0916301A1 (en) * 1997-11-18 1999-05-19 Aldes Aeraulique Plug-in unit for latching a suction pipe for a vacuum cleaner in a centralized vacuum cleaning installation
FR2770986A1 (en) * 1997-11-18 1999-05-21 Aldes Aeraulique TAKE FOR THE CONNECTION OF A DUST SUCTION PIPE TO A CENTRALIZED SUCTION SYSTEM
US6143996A (en) * 1997-11-18 2000-11-07 Aldes Aeraulique Outlet for connecting a vacuum-cleaning hose to a centralized vacuum-cleaning installation
US6459056B1 (en) 1999-03-05 2002-10-01 Bernard John Graham Cleaning apparatus for central vacuum system
DE19940663A1 (en) * 1999-08-27 2001-03-15 Rolf Ferstl Operating and installation system for central vacuum cleaning system has control switch socket with integral chip card reader, and central control and monitoring unit
DE19940663C2 (en) * 1999-08-27 2002-01-24 Rolf Ferstl Inlet system for central vacuum systems
US9237832B2 (en) 2012-05-31 2016-01-19 Ivd Global Corporation Illuminated inlet for vacuum cleaning apparatus
US9254070B2 (en) 2012-05-31 2016-02-09 Ivd Global Corporation Inlet for vacuum cleaning apparatus

Also Published As

Publication number Publication date
ES285607Y (en) 1986-07-16
DE3574822D1 (en) 1990-01-25
ES285607U (en) 1985-12-16
AU3951185A (en) 1986-01-02
IT8428984V0 (en) 1984-06-19
ATE48750T1 (en) 1990-01-15
EP0165908A3 (en) 1987-08-19
EP0165908B1 (en) 1989-12-20

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