EP0023060B1 - Apparatus for feeding insulating material, such as rock wool or glass wool, into the cavity of a hollow wall - Google Patents

Apparatus for feeding insulating material, such as rock wool or glass wool, into the cavity of a hollow wall Download PDF

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Publication number
EP0023060B1
EP0023060B1 EP80200665A EP80200665A EP0023060B1 EP 0023060 B1 EP0023060 B1 EP 0023060B1 EP 80200665 A EP80200665 A EP 80200665A EP 80200665 A EP80200665 A EP 80200665A EP 0023060 B1 EP0023060 B1 EP 0023060B1
Authority
EP
European Patent Office
Prior art keywords
insulating material
discharge tube
central channel
gas
cavity
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
EP80200665A
Other languages
German (de)
French (fr)
Other versions
EP0023060A2 (en
EP0023060A3 (en
Inventor
Ronald Barend Van Santbrink
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.)
TALMER BV
Original Assignee
Talmer BV
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 Talmer BV filed Critical Talmer BV
Priority to AT80200665T priority Critical patent/ATE6086T1/en
Publication of EP0023060A2 publication Critical patent/EP0023060A2/en
Publication of EP0023060A3 publication Critical patent/EP0023060A3/en
Application granted granted Critical
Publication of EP0023060B1 publication Critical patent/EP0023060B1/en
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
    • E04F21/06—Implements for applying plaster, insulating material, or the like
    • E04F21/08—Mechanical implements
    • E04F21/085—Mechanical implements for filling building cavity walls with insulating materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
    • B05B1/262—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors
    • B05B1/267—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors the liquid or other fluent material being deflected in determined directions

Definitions

  • the invention relates to an apparatus for feeding insulating material, such as rock wool or glass wool, into the cavity of a hollow wall, provided with an ejector, which on the one hand is connected to a supply pipe for the insulating material and which on the other hand is connected to a supply pipe for a gas stream, the insulating material being sucked into the ejector by this gas stream, said ejector being further connected to a discharge tube, from which the insulating material is blown into the cavity.
  • insulating material such as rock wool or glass wool
  • a pump supplies air under pressure to a first conduit, which divides into two branch conduits.
  • One of these branch conduits debouches into a reservoir for the insulating material, whilst the other branch conduit is connected to a first inlet leg of a Y-shaped connection part.
  • the second inlet leg of this Y-shaped connection part is connected to the outlet of the reservoir for the insulating material.
  • the outlet leg of the Y-shaped connection part is connected to a rather long conduit, which ends in the discharge tube.
  • the air under pressure which enters the first inlet leg of the Y-shaped connection part exerts a suction action in the second inlet leg of the Y-shaped connection part in order to support the supply of the insulating material from this reservoir by means of the air under pressure fed to this reservoir through the first mentioned branch conduit. Therefore the Y-shaped connection part operates as an ejector.
  • This known apparatus has the disadvantage, that although the suction effect exerted on the insulating material tends to loosen the insulating material the rather long conduit between the Y-shaped connection part and the discharge tube leads to a compression of the insulating material, which abolishes the loosening effect obtained by the suction action in the ejector.
  • the apparatus according to the invention is characterized in that the ejector and the discharge tube are combined in a discharge unit, which comprises a housing equipped with a central channel, the supply pipe for the insulating material being connected to this central channel at the side remote from the discharge tube, said central channel being provided with a first portion having a cross-section which becomes smaller in the direction towards the discharge tube, said first portion adjoining a second portion having an approximate constant cross-section, the supply pipe for the gas stream being connected to a plurality of gas channels formed in the housing, which gas channels debouch into the said second portion of said central channel, said gas channels enclosing an acute angle with the longitudinal axis of said central channel.
  • the insulating material Due to the divided gas supply through the plurality of gas channels according to the present invention it becomes possible to transport the insulating material to the ejector by suction only, so that an improved loosening effect of the insulating material which is sucked into the central channel by the gas flow is attained.
  • the insulating material is deposited via the discharge tube into the cavity while it still has its loosened state.
  • the drawing shows an apparatus for feeding insulating material such as rock wool or glass wool into the cavity 4 of a hollow wall consisting of an inner wall and an outer wall 10.
  • the apparatus is provided with an ejector which on the one hand is connected to a supply pipe 3 for the insulating material and which on the other hand is connected to a supply pipe for a gas stream, said ejector being further connected to a discharge tube 7, which debouches through a bore 9 in the outer wall 10 into the cavity 4.
  • the ejector and the discharge tube 7 are combined in a discharge unit, which comprises a housing 1 equipped with a central channel 2.
  • the supply pipe 3 for the insulating material is connected to the central channel 2 at the side remote from the discharge tube 7.
  • the central channel 2 comprises a first portion having a cross-section which becomes smaller in the direction towards the discharge tube 7, and a second portion having an approximate constant cross-section.
  • the supply pipe for the gas stream is connected to an inlet stub 6 on the housing 1, while the gas stream passing this inlet stub 6 reaches a main gas channel formed in the housing 1 and having a centre line coinciding with the centre line of the central channel 2. From this main gas channel the gas is fed to a plurality of gas channels 5 formed in the housing 1. These gas channels 5 debouch into the second portion of the central channel 2 with the approximate constant cross-section and enclose an acute angle with the longitudinal axis of this central channel 2.
  • the discharge tube 7 which is detachably mounted in the housing 1 may be provided with an end wall 11 and an outflow aperture 12 arranged in the side wall of the discharge tube 7.
  • a filling member 13 may be mounted in the discharge tube 7 to rectangularly deflect the flow of the gas and the insulating material.
  • the housing 1 may support driving means (not shown) by means of which the discharge tube 7 may be brought into rotation.

Abstract

A process and an apparatus for filling up the cavity of a cavitywall with insulationmaterial, such as rockwool or glasswool, in which the insulationmaterial is sucked or drawn from a supply by means of an elector and introduced into the cavity together with the driving gas through an outflowpipe which has been brought through an opening or bore in the outer wall.

Description

  • The invention relates to an apparatus for feeding insulating material, such as rock wool or glass wool, into the cavity of a hollow wall, provided with an ejector, which on the one hand is connected to a supply pipe for the insulating material and which on the other hand is connected to a supply pipe for a gas stream, the insulating material being sucked into the ejector by this gas stream, said ejector being further connected to a discharge tube, from which the insulating material is blown into the cavity.
  • An apparatus of this type is known from Belgian patent specification 863.805. In this known apparatus a pump supplies air under pressure to a first conduit, which divides into two branch conduits. One of these branch conduits debouches into a reservoir for the insulating material, whilst the other branch conduit is connected to a first inlet leg of a Y-shaped connection part. The second inlet leg of this Y-shaped connection part is connected to the outlet of the reservoir for the insulating material. The outlet leg of the Y-shaped connection part is connected to a rather long conduit, which ends in the discharge tube. The air under pressure which enters the first inlet leg of the Y-shaped connection part exerts a suction action in the second inlet leg of the Y-shaped connection part in order to support the supply of the insulating material from this reservoir by means of the air under pressure fed to this reservoir through the first mentioned branch conduit. Therefore the Y-shaped connection part operates as an ejector.
  • This known apparatus has the disadvantage, that although the suction effect exerted on the insulating material tends to loosen the insulating material the rather long conduit between the Y-shaped connection part and the discharge tube leads to a compression of the insulating material, which abolishes the loosening effect obtained by the suction action in the ejector.
  • However, this loosening of the insulating material is of great importance, as this leads to lower material costs for filling a cavity of a hollow wall without unfavourably influencing the insulating effect.
  • It is an object of the present invention to provide an apparatus for feeding insulating material, such as rock wool or glass wool, into the cavity of a hollow wall, wherein the above disadvantage is effectively removed.
  • To this end the apparatus according to the invention is characterized in that the ejector and the discharge tube are combined in a discharge unit, which comprises a housing equipped with a central channel, the supply pipe for the insulating material being connected to this central channel at the side remote from the discharge tube, said central channel being provided with a first portion having a cross-section which becomes smaller in the direction towards the discharge tube, said first portion adjoining a second portion having an approximate constant cross-section, the supply pipe for the gas stream being connected to a plurality of gas channels formed in the housing, which gas channels debouch into the said second portion of said central channel, said gas channels enclosing an acute angle with the longitudinal axis of said central channel.
  • Due to the divided gas supply through the plurality of gas channels according to the present invention it becomes possible to transport the insulating material to the ejector by suction only, so that an improved loosening effect of the insulating material which is sucked into the central channel by the gas flow is attained. In view of the fact that the ejector and the discharge tube are combined to a discharge unit, so that the loosened material has only to cover a short path between the gas supply to the central channel and the discharge tube, the insulating material is deposited via the discharge tube into the cavity while it still has its loosened state.
  • It is observed that from U.S. patent specification 2.235.542 an apparatus is known for feeding insulating material into a cavity, wherein a pump delivers an air stream to a long hose, which ends in the discharge tube. The insulating material is applied to the air stream from a hopper from which it is fed a little at a time under the influence of gravity and under the influence of the suction effect induced by the air stream. In this known apparatus the air under pressure is centrally fed, whilst the insulating material is laterally fed from the hopper. Further, the long hose between the ejector and the discharge tube again jeopardizes the loosening effect exerted by the suction on the insulating material.
  • From U.S. patent specification 4.134.242 an apparatus is known for feeding insulating material into the cavity of a hollow wall, wherein the insulating material is fed from a hopper to a blowing machine, which is connected to the discharge tube by means of a lengthy hose. The insulating material is pressed by the blowing machine through the hose without any suction being exerted on this material.
  • The invention will hereafter be elucidated with reference to the drawing, which shows a cross-section of an embodiment of the apparatus according to the invention by way of example.
  • The drawing shows an apparatus for feeding insulating material such as rock wool or glass wool into the cavity 4 of a hollow wall consisting of an inner wall and an outer wall 10.
  • The apparatus is provided with an ejector which on the one hand is connected to a supply pipe 3 for the insulating material and which on the other hand is connected to a supply pipe for a gas stream, said ejector being further connected to a discharge tube 7, which debouches through a bore 9 in the outer wall 10 into the cavity 4.
  • The ejector and the discharge tube 7 are combined in a discharge unit, which comprises a housing 1 equipped with a central channel 2. The supply pipe 3 for the insulating material is connected to the central channel 2 at the side remote from the discharge tube 7.
  • The central channel 2 comprises a first portion having a cross-section which becomes smaller in the direction towards the discharge tube 7, and a second portion having an approximate constant cross-section.
  • The supply pipe for the gas stream is connected to an inlet stub 6 on the housing 1, while the gas stream passing this inlet stub 6 reaches a main gas channel formed in the housing 1 and having a centre line coinciding with the centre line of the central channel 2. From this main gas channel the gas is fed to a plurality of gas channels 5 formed in the housing 1. These gas channels 5 debouch into the second portion of the central channel 2 with the approximate constant cross-section and enclose an acute angle with the longitudinal axis of this central channel 2.
  • The discharge tube 7 which is detachably mounted in the housing 1 may be provided with an end wall 11 and an outflow aperture 12 arranged in the side wall of the discharge tube 7. In front of the end wall 11 a filling member 13 may be mounted in the discharge tube 7 to rectangularly deflect the flow of the gas and the insulating material. The housing 1 may support driving means (not shown) by means of which the discharge tube 7 may be brought into rotation.

Claims (3)

1. Apparatus for feeding insulating material, such as rock wool or glass wool, into the cavity (4) of a hollow wall, provided with an ejector, which on the one hand is connected to a supply pipe (3) for the insulating material and which on the other hand is connected to a supply pipe for a gas stream, the insulating material being sucked into the ejector by this gas stream, said ejector being further connected to a discharge tube (7), from which the insulating material is blown into the cavity (4), characterized in that the ejector and the discharge tube (7) are combined in a discharge unit, which comprises a housing (1) equipped with a central channel (2), the supply pipe (3) for the insulating material being connected to this central channel (2) at the side remote from the discharge tube (7), said central channel (2) being provided with a first portion having a cross-section which becomes smaller in the direction towards the discharge tube (7), said first portion adjoining a second portion having an approximate constant cross-section, the supply pipe for the gas stream being connected to a plurality of gas channels (5) formed in the housing (1), which gas channels (5) debouch into the said second portion of said central channel (2), said gas channels (5) enclosing an acute angle with the longitudinal axis of said central channel (2).
2. Apparatus according to claim 1, characterized in that the supply pipe for the gas stream is connected to a main gas channel formed in the housing (1), the centre line of said main gas channel coinciding with the centre line of the central channel (2), whilst the gas channels (5) are connected to said main gas channel.
3. Apparatus according to claim 2, characterized - in that the discharge tube (7) is detachably mounted in the housing (1).
EP80200665A 1979-07-20 1980-07-08 Apparatus for feeding insulating material, such as rock wool or glass wool, into the cavity of a hollow wall Expired EP0023060B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80200665T ATE6086T1 (en) 1979-07-20 1980-07-08 DEVICE FOR FILLING THE CAVITY OF A HOLLOW WALL WITH AN INSULATING MATERIAL SUCH AS ROCK WOOL OR GLASS WOOL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7905637 1979-07-20
NL7905637A NL7905637A (en) 1979-07-20 1979-07-20 Method for filling the cavity of a cavity wall with insulating material.

Publications (3)

Publication Number Publication Date
EP0023060A2 EP0023060A2 (en) 1981-01-28
EP0023060A3 EP0023060A3 (en) 1981-03-25
EP0023060B1 true EP0023060B1 (en) 1984-02-01

Family

ID=19833569

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80200665A Expired EP0023060B1 (en) 1979-07-20 1980-07-08 Apparatus for feeding insulating material, such as rock wool or glass wool, into the cavity of a hollow wall

Country Status (5)

Country Link
EP (1) EP0023060B1 (en)
AT (1) ATE6086T1 (en)
DE (1) DE3066381D1 (en)
DK (1) DK309380A (en)
NL (1) NL7905637A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE883848A (en) * 1980-06-17 1980-10-16 Smeets Gerardus J L NOZZLE
FR2573328B1 (en) * 1984-11-19 1987-06-12 Riedel Paul DEVICE FOR INJECTING A FIBROUS OR GRANULATED BULK PRODUCT INTO A CAVITY
FR2620521A1 (en) * 1987-09-15 1989-03-17 Licentia Gmbh BAKING AND ROASTING MOLD
EP2146015A1 (en) * 2008-07-17 2010-01-20 Stefan Haupt Method for injecting an insulation and device therefor
GB2560488A (en) * 2016-11-17 2018-09-19 Polypearl Ltd An injector

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2235542A (en) * 1937-08-24 1941-03-18 Wenzel Amanda Building insulation
NL7706563A (en) * 1977-06-14 1978-12-18 Nl Steenwolfabriek Nv PROCEDURE FOR INSULATING Cavity Walls, BY FILLING THIS SPACE THROUGH HOLES MADE IN ONE OF THE WALLS WITH INSULATION MATERIAL AND THEN CLOSING THE OPENING AGAIN.
US4134242A (en) * 1977-09-01 1979-01-16 Johns-Manville Corporation Method of providing thermal insulation and product therefor
BE863805A (en) * 1978-02-09 1978-05-29 Gc Insulation Ltd METHOD AND APPARATUS FOR INSULATING HOLLOW WALLS

Also Published As

Publication number Publication date
EP0023060A2 (en) 1981-01-28
ATE6086T1 (en) 1984-02-15
DE3066381D1 (en) 1984-03-08
NL7905637A (en) 1981-01-22
DK309380A (en) 1981-01-21
EP0023060A3 (en) 1981-03-25

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