GB2511290A - Dispensing head - Google Patents

Dispensing head Download PDF

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Publication number
GB2511290A
GB2511290A GB1301117.6A GB201301117A GB2511290A GB 2511290 A GB2511290 A GB 2511290A GB 201301117 A GB201301117 A GB 201301117A GB 2511290 A GB2511290 A GB 2511290A
Authority
GB
United Kingdom
Prior art keywords
nozzle
dispenser
dispensing head
head
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Withdrawn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
GB1301117.6A
Other versions
GB201301117D0 (en
Inventor
Alex Nunn
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.)
GEKKO IND Ltd
Original Assignee
GEKKO IND Ltd
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 GEKKO IND Ltd filed Critical GEKKO IND Ltd
Priority to GB1301117.6A priority Critical patent/GB2511290A/en
Publication of GB201301117D0 publication Critical patent/GB201301117D0/en
Publication of GB2511290A publication Critical patent/GB2511290A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00503—Details of the outlet element
    • B05C17/00516—Shape or geometry of the outlet orifice or the outlet element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/0052—Accessories therefor
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00503—Details of the outlet element
    • B05C17/00506—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container
    • B05C17/00513—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container of the thread type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Coating Apparatus (AREA)

Abstract

A dispensing head 1, for a dispenser (9, Figure 2) of a viscous material such as adhesive, comprises an inlet 14 and a plurality of outlets 3 on a nozzle 2, preferably a transverse tube, through which viscous material is forced onto a target surface. Nozzle 2 is retained on a frame 4 having at least one guide 5, preferably at opposing ends of nozzle 2, extending proud of nozzle 2 to contact the target surface and aligns nozzle 2 with the surface whilst keeping nozzle 2 spaced from the surface. Guide 5 has an edge having two distinct contact surface profiles 6, 7, of which one is preferably flat and the other may be flat or curved. Nozzle 2 is preferably comprised of cardboard and may be disposable and biodegradable. A removable funnel may be provided between inlet 14 and the dispenser.

Description

DISPENSING HEAD
Field of the Invention
The present invention relates to dispensing heads and in particular dispensing heads suitable for use on dispensers of viscous materials such as adhesive.
Background of the Invention
Dispensers for viscous materials, such as adhesives for example, can take the form of a tubular body, within which the viscous material is stored, and a plunger. During use the plunger is actuated to force the viscous material out of the dispenser on to a target surface, e.g. a wall, roof or flooring.
In order to speed up the application of a viscous material, such as an adhesive, to a surface dispensing heads are used to convert the singular outlet of the dispenser into a multiple outlet delivery device. The dispenser head is provided with an inlet through which the viscous material enters the head and a plurality of outlets through which the viscous material is dispensed on to the target surface. Varying the number of outlets and their distribution enables the dispensing pattern of the head to be changed to achieve the required dispensing pattern.
In order to ensure that the viscous material is evenly and accurately distributed onto a target surface the dispensing head is provided with guide means. During the use of a dispenser with a dispenser head the guide means are placed into contact with the target surface. In this way as the user moves the dispenser relative to the target surface it is possible to ensure the consistent application of a viscous material by maintaining the contact between the target surface and the guide means.
International PCI application No. PCT/NL2005/000177 describes a dispenser head for use on dispensers of viscous materials such as adhesive. The device is primarily designed for the application of a viscous material to a hodzonta[ surface such as floor.
Summary of the Invention
The present invention seeks to provide an improved dispenser head for dispensers of viscous materials.
To this end the present invention provides a dispensing head for a dispenser of viscous materials, said head comprising: an inlet and a plurality of outlets, whereby in use viscous material forced from a dispenser enters the head via the inlet and exits via the outlets on to a target surface; a nozzle, upon which the outlets are distributed; a frame that reta[ns the nozzle, said frame having at least one guide member that extends proud of the nozzle such that, in use, the guide member contacts said target surface and thereby aligns the nozzle with the surface whilst maintaining a spacing between the nozzle and the surface; and characterised in that the one or more guide members has an edge with two distinct contact surface profiles.
Providing two distinct surface contact profiles on the edge of the guide member(s) enables a user to maintain two distinct alignments of the dispenser head to a target surface.
Preferably the two distinct contact surface profiles may comprise a first flat contact surface profile with a first gradient and a second flat contact surface profile with a second gradient.
Alternatively the two distinct contact profiles may comprise a flat contact surface profile and a round contact surface profile. ProvFding a flat and a round surface contact profile on the edge of the guide member(s) enables a user to rna[ntain a consistent alignment of the dispenser head to the target surface both when app[ying viscous material to a vertical surface, such as a wall, and when applying viscous material to a horizontal surface, such as a roof or floor.
In partEcular it is envisaged that a user can elect to use the flattened surface contact profile when they are treating a vertical surface such as a wall because the alignment of the dispensing head to the surface can be maintained even when the user does not have the same freedom to move relative to the wall. It will be appreciated that by ensuring that the flattened surface contact profile stays in contact with the wall the user can be confident that the angle of alignment of the head to the wall is maintained.
However a user can elect for a rounded surface contact profile when they are treating a horizontal surface, such as a roof or floor, as they can move relative to the surface to ensure the alignment of head to the surface is maintained.
Preferably the nozzle may comprise a tube that is retained at both ends by the frame.
Preferably the at least one guide member of the frame may comprise a pair of end portions which retain the ends of the nozzle.
Preferably the plurality of outlets may have a spaced distribution along the longest length of the nozzle.
Preferably the nozzle may be made from cardboard. In this way a user can easily and cheaply replace the nozzle rather than trying to clean the nozzle after an adhesive, for example, has solidified within the nozzla Preferably the frame may further comprise dispenser engaging means that secures the head to a dispenser.
Preferably the head may further comprise a removable funnel means locatable between an outlet of said dispenser and the inlet of the nozzle such that the narrow end of the funnel extends into the nozzle.
It is envisioned that locating the funnel between the outlet of a dispenser and the inlet of the dispenser head will enable a wider range of viscous materials to be dispensed. The funnel works by stopping or at least minimising the extent to which adhesive comes into direct contact with the nozzle inlet. This avoids the nozzle becoming blocked by some types of adhesive (such as those that might cure). In this way ills possible to simply remove the funnel and thereby avoid the need to clean any adhesives that have otherwise cured within the nozzle inlet.
Brief Description of the Drawings
A preferred embodiment of the present invention will now be described with reference to the drawings, wherein: Figure 1 shows the preferred embodiment of the dispenser head of the present invention; Figure 2 shows the dispenser head of figure I being used to apply a viscous material to a vertical surface; Figure 3 shows the dispenser head of figure 1 being used to apply a viscous material to a horizontal surface; Figure 4 shows a further preferred feature of the present invention; and Figure 5 shows figure 4 from an alternative view.
Detailed Description of the Preferred Embodiment
A preferred embodiment of the dispenser head 1 of the present invention is shown from various views in Figures Ito 5.
The dispenser head I comprises a tubular nozzle 2 that is closed at both ends and also retained within a frame 4 at the ends. The nozzle 2 is provided with a plurality of outlet holes 3, which are shown as being uniformly distributed in a straight line along the outwardly orientated face of the nozzle 2.
It is envisaged that the size, number and distribution of outlet holes 3 may vary from nozzle to nozzle depending on the nature of the dispensing pattern required and the nature of the material being dispensed. However it is appreciated that the outlet holes 3 must be located on the forward facing half of the tube's circumference rather than the half of the tube's circumference which faces the frame 4.
Preferably the tubular nozzle 2 is made from cardboard. In this way the nozzle 2 is cheaper to manufacture, which makes it a viable option for the user to dispose of the nozzle after one use rather than attempting to clean it. It will be appreciated that the use of cardboard nozzles also has environmental beneffts because the nozzle is biodegradable.
The frame 4, which may be made from plastic, metal or a composite material (e.g. fibreglass) comprises a back plate with end portions 5 projecting from either end thereof. Whilst the embodiment shown in the figures has the end portions 5 projecting from the back plate at right angles it is appreciated that this angle could be more or less that 900 provided it still enabLes the nozzle 2 to be retained within the frame 4.
The back plate serves to provide the structural strength of the frame 4.
Although not shown in the figures it will be appreciated that the back plate is provided with a hole, through which a conduit can pass to transport viscous material from a dispenser to the nozzle inlet (also not shown).
The back plate of the frame 4 is connected to, or possibly formed integrally with, the dispenser engaging means 8. The dispenser engaging means 8 can be secured on to a viscous material (e.g. adhesive) dispenser 9, ensure that the dispenser head 1 remains securely attached to the dispenser 9 during its operation -Le. so that the pressure of the viscous material being forced out of the dispenser by a plunger does not push the dispenser head 1 off the dispenser.
It is envisaged that the dispenser engaging means S may take the form of a cap with an internal screw thread that can engage with a complementary screw thread on the exterior of an end of the dispenser 9. However it is appreciated that alternative arrangements for securing the dispenser head 1 of the present invention to a dispenser will be readily apparent to the skilled person.
Once the dispensing head 1 is secured to a dispenser 9 using the dispenser engaging means 8, operating the dispenser will force viscous material into the dispensing head via the nozzle inlet and then out of the plurality of outlet hole 3 onto a target surface.
The end portions 5 of the nozzle retaining frame 4 extend away from the back plate. The relative positioning and size of the tubular nozzle 2 and the end portions 5 is such that the nozzle is housed within the perimeter of the frame 4. This arrangement helps to space the nozzle 2 from any contact surface that the frame 4 comes into contact with.
The leading edge of each end portion 5 is provided with two distinct surface contact profiles. In the preferred embodiment of the dispenser head shown the first surface contact profile 6 is a rounded profile and the second surface contact profile 7 is a flattened profile. Both contact profiles ensure that the nozzle remains spaced from the contact surface upon which the surface contact profile rests.
Preferably the two distinct contact profiles extend from the top/bottom of the each end portion 5 to a mid-point where the two profiles meet. However it is envisaged that the point where the two profiles meet may be offset in either direction.
Although the preferred embodiment shows a dispenser head with a round and a flat contact surface profile it is appreciated that the dispenser head might alternatively be provided with two flat surface contact profiles, each having a distinct gradient that facilitates a different arrangement relative to a target surface.
Returning to the dispensing head of the preferred embodiment, it is the two distinct surface contact profiles 6, 7 that enable the dispensing head 1 of the present invention to be used effectively on both a vertical surface (e.g a waR) and a horizontal surface (e.g. a roof or a floor).
The operation of the dispensing head 1 of the present invention will now be explained with reference to Figures 2 and 3, which show the application of a viscous material 11, for example, to a vertical surface 10 and a horizontal surface 12 respectively.
As will be appreciated from Figure 2, the dispenser 9 and the attached dispenser head I are used to apply viscous material, for example, to a vertical surface such as a wall 10, the user's ability to move relative to the wall, so as to maintain the angular relationship between the dispensing head 1 and the wall, is restricted.
Thus in resting the flattened contact surface profile 7 on the wall 10 the user only needs to maintain contact with the wall to ensure that the desired angular relationship between the wall and the dispensing head I is maintained. This enables the user to achieve a consistent application of the viscous material 11 from the dispenser to the wall 10 even when stretching to access higher parts of the walL In contrast, when the dispenser g and dispensing head I are drawn across a horizontal surface 12, such as a floor, the dispenser is actuated to expel viscous materials 11 through the dispensing head on to the surface 12.
The viscous material 11, which is expelled is a distribution pattern from the outlet holes 3 in the nozzle 2, is applied to the horizontal surface as the dispensing head I is drawn across the surface. The user ensures that the rounded surface contact profile 6 is placed in contact with the surface to which the viscous material is being applied.
As the user walks across the floor they can take care to maintain the angular relationship of the dispensing head 1 to the floor, thus ensuring a consistent application of the viscous material.
Upon consideration of the present invention it will be appreciated that, when using the rounded surface contact profile, stretching to reach higher parts of a wall might otherwise cause the angular relationship to change. This could cause an inconsistent application of the viscous material.
A further aspect of the present invention will now be described wiTh reference to Figures 4 and 5 Typically dispensing heads of the type improved upon in the present invention are used primarily in the application of elastic adhesives.
It has been surprising discovered that the introduction of a funnel 13 between a dispenser 9 and the inlet 14 of a dispensing head 1, such as that of the present invention helps to prevent the adhesive curing within the inlet and blocking it.
This enables the dispensing head of the present invention to be reused with a wider range of adhesives and viscous materials without the need for extensive cleaning that might have otherwise made it previously unviable.

Claims (11)

  1. Claims 1. A dispensing head for a dispenser of viscous materials, said head comprising: an inlet and a plurality of outlets, whereby in use viscous material forced from a dispenser enters the head via the inlet and exits via the outlets on to a target surface; a nozzle, upon which the outlets are distributed; a frame that retains the nozzle, said frame having at least one guide member that extends proud of the nozzle such that, in use, the guide member contacts said target surface and thereby aligns the nozzle with the surface whilst maintaining a spacing between the nozzle and the surface; and characterised in that the one or more guide members has an edge with two distinct contact surface profiles.
  2. 2. The dispensing head of claim 1, wherein the two distinct contact surface profiles comprise a first flat contact surface profile with a first gradient and a second flat contact surface profile with a second gradient.
  3. 3. The dispensing head of claim 1, wherein the two distinct contact profiles comprise a flat contact surface profile and a round contact surface profile.
  4. 4. The dispensing head of claim 1, 2 or 3, wherein the nozzle comprises a tube and is retained at both ends by the frame.
  5. 5. The dispensing head of any of claims I to 4, wherein the at least one guide member of the frame comprises a pair of end portions which retain the ends of the nozzle.
  6. 6. The dispensing head of any of claims 1 to 5, wherein the plurality of outlets have a spaced distribution along the longest length of the nozzle.
  7. 7. The dispensing head of any of claims 1 to 6, wherein the nozzle is made from cardboard.
  8. 8. The dispensing head of any of the preceding claims, wherein the frame further comprises dispenser engaging means that secures the head to a dispenser.
  9. 9. The dispensing head of any of the preceding claims, further comprising removable funnel means locatable between an outlet of a dispenser and the inlet of the nozzle such that the narrow end of the funnel extends into the nozzle.
  10. 10. A dispensing head for a dispenser of viscous materials, said head being substantially as described, with reference to the drawings, hereinbefore.
  11. 11. A dispenser for viscous material comprising a dispensing head according to any of claims ito 10.
GB1301117.6A 2013-01-22 2013-01-22 Dispensing head Withdrawn GB2511290A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1301117.6A GB2511290A (en) 2013-01-22 2013-01-22 Dispensing head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1301117.6A GB2511290A (en) 2013-01-22 2013-01-22 Dispensing head

Publications (2)

Publication Number Publication Date
GB201301117D0 GB201301117D0 (en) 2013-03-06
GB2511290A true GB2511290A (en) 2014-09-03

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Family Applications (1)

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GB1301117.6A Withdrawn GB2511290A (en) 2013-01-22 2013-01-22 Dispensing head

Country Status (1)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5749498A (en) * 1996-07-03 1998-05-12 Lavoie; Pierre Applicator and spreader tool for adhesives
US5882133A (en) * 1996-11-01 1999-03-16 Premark Rwp Holdings, Inc. Glue applicator for laminate flooring
US20050051571A1 (en) * 2003-09-09 2005-03-10 Carruth Ronald Scott Tip for a caulking gun
EP1749586A1 (en) * 2005-08-03 2007-02-07 Collano AG Device and procedure for controlling the width and/or the density of a fluid mass
US20090197001A1 (en) * 2006-03-13 2009-08-06 Shawn Donegan Fluid applicator assembly
EP2596872A1 (en) * 2011-11-25 2013-05-29 P.C. Cox Limited Bracket

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5749498A (en) * 1996-07-03 1998-05-12 Lavoie; Pierre Applicator and spreader tool for adhesives
US5882133A (en) * 1996-11-01 1999-03-16 Premark Rwp Holdings, Inc. Glue applicator for laminate flooring
US20050051571A1 (en) * 2003-09-09 2005-03-10 Carruth Ronald Scott Tip for a caulking gun
EP1749586A1 (en) * 2005-08-03 2007-02-07 Collano AG Device and procedure for controlling the width and/or the density of a fluid mass
US20090197001A1 (en) * 2006-03-13 2009-08-06 Shawn Donegan Fluid applicator assembly
EP2596872A1 (en) * 2011-11-25 2013-05-29 P.C. Cox Limited Bracket

Also Published As

Publication number Publication date
GB201301117D0 (en) 2013-03-06

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