WO2004081489A1 - Wall plug and gauge assembly - Google Patents

Wall plug and gauge assembly Download PDF

Info

Publication number
WO2004081489A1
WO2004081489A1 PCT/GB2004/001021 GB2004001021W WO2004081489A1 WO 2004081489 A1 WO2004081489 A1 WO 2004081489A1 GB 2004001021 W GB2004001021 W GB 2004001021W WO 2004081489 A1 WO2004081489 A1 WO 2004081489A1
Authority
WO
WIPO (PCT)
Prior art keywords
wall
plugs
gauge
assembly according
mounting portion
Prior art date
Application number
PCT/GB2004/001021
Other languages
French (fr)
Inventor
Iain Bradfield
Simon James Skillings
Original Assignee
Turner Intellectual Property Limited
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 Turner Intellectual Property Limited filed Critical Turner Intellectual Property Limited
Publication of WO2004081489A1 publication Critical patent/WO2004081489A1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/22—Feeler-pin gauges, e.g. dial gauges
    • G01B3/28—Depth gauges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/005—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose formed in integral series but easily separable

Definitions

  • the present invention relates to a wall plug and thickness/depth gauge assembly.
  • the invention also relates to a gauge for determining the thickness of a cavity wall and/or depth of a bore in a wall.
  • a wall plug into which a fixing, such as a screw, is inserted in order to secure an object to a wall is well known.
  • the wall plug is normally inserted into a bore formed in the wall prior to the screw being inserted into the wall plug.
  • the size of the wall plug is chosen to suit the length of the bore, i.e. the thickness of a cavity wall.
  • a general aim of the present invention to provide a gauge which can be inserted into a bore formed in a cavity wall in order to determine the thickness of the cavity wall, and so enable the correctly sized cavity wall plug to be chosen for insertion into the bore.
  • Wall plugs are normally moulded from a plastics material and are sold attached to a sprue. It is another aim of the present invention to provide a gauge which can be integrally moulded with the sprue so as to form a wall plug and gauge assembly.
  • a wall plug and gauge assembly comprising a plurality of wall plugs moulded from a suitable plastics material, some of the plurality of wall plugs being of a different size to others for use with different thicknesses of wall and a gauge adapted to determine the thickness of a wall and indicate the appropriate size of plug to be selected for use from said plurality of wall plugs.
  • the plurality of wall plugs are secured to a support body, the plurality of wall plugs and said support body being a one piece moulding, the gauge being detachably attached to the support body.
  • the gauge has a main body of said plastics material which is integrally moulded with, and attached to, said support body so as to form part of said one piece moulding.
  • the support body is generally in the form of a planar body having a window formed therein, the main body of said gauge being located within said window.
  • each of said plugs attached to the support body are of different sizes for use in cavity walls of different thicknesses.
  • each of said plugs has a generally cylindrical body for location within a bore formed in a cavity wall, the cylindrical bodies of said plugs having the same outer diameter but being of varying lengths to define said different sizes.
  • plugs of the same size are moulded from a plastics material of the same colour, which differs from the colour of the plugs of a different size.
  • the main body of the gauge includes an elongate probe portion for insertion into a bore formed in a wall, the elongate probe portion extending longitudinally from a slider mounting portion of the main body upon which a measuring slider is slidably mounted.
  • the slider mounting portion is preferably of planar form defining opposed sides, and opposed front and rear faces.
  • the measuring slider is preferably in the form of a casing which slidably engages said opposed sides to be guided thereby during sliding movement along the slider mounting portion.
  • the casing includes a casing shell which is adapted to be mounted upon the slider mounting portion by laying the shell over the front face of the slider mounting portion.
  • the support body is a sprue.
  • Figure 1 is a perspective view of a plug and gauge assembly according to an embodiment of the present invention
  • Figure 2 is a plan view of the assembly shown in Figure 1;
  • Figure 3 is an enlarged perspective view, from above, of the gauge shown in Figure 1 ;
  • Figure 4 is an exploded perspective view, from below, of the gauge shown in Figure 3;
  • Figure 5 is a view similar to Figure 3 showing, from above, the gauge in use;
  • Figure 6 is a view similar to Figure 5 showing the gauge from below;
  • Figure 7 shows the gauge in use.
  • a wall plug and gauge assembly according to an embodiment of the invention is generally shown at 10 in Figures 1 and 2.
  • the assembly 10 includes a unitary moulding, moulded from a plastics material suitable for wall plugs, which comprises a support body preferably in the form of a sprue 12 to which a plurality of wall plugs 14, and a main body 18 of a gauge 20, are integrally attached.
  • the sprue 12 is of generally planar, elongate form having a slot 22 at one end to enable the assembly 10 to be hung on a hanger for display/storage at a retail outlet.
  • a plurality of wall plugs 14 are attached along each side 15 of the sprue 12.
  • the wall plugs 14 may be of differing sizes.
  • each of the plugs 14 has a cylindrical body portion 30 from which a winged portion 31 extends.
  • the cylindrical body portions 30 of the wall plugs 14 have the same outer diameter, but differ in length so that a wall plug of an appropriate length may be chosen for insertion into a cavity wall of a predetermined thickness.
  • the plugs 14 are arranged in groups A,B,C,D of differing lengths L of the cylindrical portions 30.
  • Plugs 14 of the same size may be moulded from a plastics material of one colour, which differs from the colour of the plugs 14 of a different size.
  • the sprue 12 preferably includes a window 40 within which the gauge 20 is located.
  • the gauge 20 includes a main body 18 which has an elongate probe 50 extending longitudinally from a slider mounting portion 52.
  • the main body 18 is moulded integrally with the sprue 12 such that the sprue 12, wall plugs 14 and body 18 form a unitary one piece moulding.
  • the probe 50 preferably includes a hook portion 54 at a free end remote from the slider mounting portion 52.
  • the slider mounting portion 52 is preferably of planar form defining opposed sides 56,58, and opposed front and rear faces 60,62.
  • the gauge 20 preferably includes a measuring slider 64 slidably mounted on the slider mounting portion 52.
  • the measuring slider 64 is preferably in the form of a casing which slidably engages the opposed sides 56,58 to be guided thereby during sliding movement along the slider mounting portion 52.
  • the casing includes a casing shell adapted to be mounted on the slider mounting portion 52 by laying the shell over the front face 60 of the slider mounting portion 52.
  • the shell preferably includes first and second shell portions 66,68 having complementary engaging portions.
  • the complementary engaging portions preferably include at least one pair of parallel, resiliently deformable, fingers 70,72 provided on the second shell portion 68. At their free ends, the fingers 70,72 include formations 74,76 extending away from the fingers 70,72 in opposite directions to each other. The formations 74,76 define shoulders 78,80.
  • the front face 60 of the slider mounting portion 52 preferably includes a series of parallel ridges 86 extending widthwise thereof, as shown in Figure 6.
  • the ridges 86 preferably limit sliding movement of the measuring slider 64 on the slider mounting portion 52 through engagement of a limiting member (not shown) provided on an inner surface of the first shell portion 66 with the ridges 86.
  • the limiting member is preferably a resiliently flexible member which engages the ridges 86 sequentially during sliding movement of the measuring slider 64 on the slider mounting portion 52. This engagement restricts sliding movement of the measuring slider 64 on the slider mounting portion 52 such that a positive force must be applied to the measuring slider 64 to cause sliding movement, and thereby prevent sudden, rapid and unwanted sliding movement.
  • the rear face 62 of the slider mounting portion 52 may include a scale which can be viewed through a window 88 ( Figure 5) provided in the second shell portion 68 as the measuring slider 64 slides on the slider mounting portion 52.
  • the gauge 20 may be used to measure the thickness of a cavity wall 90 by inserting the probe 50 into a bore 92 formed in the wall 90.
  • the probe 50 is preferably inserted so that the hook portion 54 engages behind the rear surface 96 of the wall 90, as shown in Figure 7.
  • the measuring slider 64 may then be slid along the slider mounting portion 52 until it rests against the front surface 98 of the wall 90.
  • the length of the probe 50 exposed L E between the end of the measuring slider 64 and the hook portion 54 corresponds to the thickness of the cavity wall 90.
  • the scale is preferably arranged so that the value which can be viewed through the window 88 in the measuring slider 64 identifies the exposed length L E of the probe 50. This measurement may then be used to identify the most appropriate wall plug 14 for use in the bore 92.
  • the exposed length L E of the probe 50 may be measured using a ruler. This measurement may then be used to identify the most appropriate wall plug 14 for use in the bore 92.
  • the exposed length L E of the probe 50 may be compared with wall plugs 14 to identify the most appropriate wall plug 14 for use in the bore 92.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)

Abstract

A wall plug and gauge assembly (10) comprising a plurality of wall plugs (14) moulded from a suitable plastics material, some of the plurality of wall plugs (14) being of a different size to others for use with different thicknesses of wall and a gauge (20) adapted to determine the thickness of a wall and indicate the appropriate size of plug to be selected for use from said plurality of wall plugs.

Description

WALL PLUG AND GAUGE ASSEMBLY
The present invention relates to a wall plug and thickness/depth gauge assembly.
The invention also relates to a gauge for determining the thickness of a cavity wall and/or depth of a bore in a wall.
A wall plug into which a fixing, such as a screw, is inserted in order to secure an object to a wall is well known.
The wall plug is normally inserted into a bore formed in the wall prior to the screw being inserted into the wall plug. For proper performance of the wall plug, in particular for wall plugs being used in cavity walls such as plasterboard, it is highly desirable that the size of the wall plug is chosen to suit the length of the bore, i.e. the thickness of a cavity wall.
It is, therefore, a general aim of the present invention to provide a gauge which can be inserted into a bore formed in a cavity wall in order to determine the thickness of the cavity wall, and so enable the correctly sized cavity wall plug to be chosen for insertion into the bore.
Wall plugs are normally moulded from a plastics material and are sold attached to a sprue. It is another aim of the present invention to provide a gauge which can be integrally moulded with the sprue so as to form a wall plug and gauge assembly.
According to one aspect of the present invention there is provided a wall plug and gauge assembly comprising a plurality of wall plugs moulded from a suitable plastics material, some of the plurality of wall plugs being of a different size to others for use with different thicknesses of wall and a gauge adapted to determine the thickness of a wall and indicate the appropriate size of plug to be selected for use from said plurality of wall plugs.
Preferably the plurality of wall plugs are secured to a support body, the plurality of wall plugs and said support body being a one piece moulding, the gauge being detachably attached to the support body.
Preferably the gauge has a main body of said plastics material which is integrally moulded with, and attached to, said support body so as to form part of said one piece moulding. Preferably the support body is generally in the form of a planar body having a window formed therein, the main body of said gauge being located within said window.
Preferably the plurality of wall plugs attached to the support body are of different sizes for use in cavity walls of different thicknesses. Preferably each of said plugs has a generally cylindrical body for location within a bore formed in a cavity wall, the cylindrical bodies of said plugs having the same outer diameter but being of varying lengths to define said different sizes.
Preferably plugs of the same size are moulded from a plastics material of the same colour, which differs from the colour of the plugs of a different size.
Preferably the main body of the gauge includes an elongate probe portion for insertion into a bore formed in a wall, the elongate probe portion extending longitudinally from a slider mounting portion of the main body upon which a measuring slider is slidably mounted. The slider mounting portion is preferably of planar form defining opposed sides, and opposed front and rear faces. The measuring slider is preferably in the form of a casing which slidably engages said opposed sides to be guided thereby during sliding movement along the slider mounting portion.
Preferably the casing includes a casing shell which is adapted to be mounted upon the slider mounting portion by laying the shell over the front face of the slider mounting portion.
Preferably the support body is a sprue.
Various aspects of the present invention are hereinafter described, by way of non-limiting examples, with reference to the accompanying drawings in which:
Figure 1 is a perspective view of a plug and gauge assembly according to an embodiment of the present invention;
Figure 2 is a plan view of the assembly shown in Figure 1;
Figure 3 is an enlarged perspective view, from above, of the gauge shown in Figure 1 ;
Figure 4 is an exploded perspective view, from below, of the gauge shown in Figure 3;
Figure 5 is a view similar to Figure 3 showing, from above, the gauge in use; Figure 6 is a view similar to Figure 5 showing the gauge from below; and
Figure 7 shows the gauge in use.
A wall plug and gauge assembly according to an embodiment of the invention is generally shown at 10 in Figures 1 and 2. The assembly 10 includes a unitary moulding, moulded from a plastics material suitable for wall plugs, which comprises a support body preferably in the form of a sprue 12 to which a plurality of wall plugs 14, and a main body 18 of a gauge 20, are integrally attached.
Preferably the sprue 12 is of generally planar, elongate form having a slot 22 at one end to enable the assembly 10 to be hung on a hanger for display/storage at a retail outlet.
Preferably a plurality of wall plugs 14 are attached along each side 15 of the sprue 12. The wall plugs 14 may be of differing sizes.
In the illustrated embodiment, each of the plugs 14 has a cylindrical body portion 30 from which a winged portion 31 extends. Conveniently, the cylindrical body portions 30 of the wall plugs 14 have the same outer diameter, but differ in length so that a wall plug of an appropriate length may be chosen for insertion into a cavity wall of a predetermined thickness.
In the illustrated embodiment, the plugs 14 are arranged in groups A,B,C,D of differing lengths L of the cylindrical portions 30.
Plugs 14 of the same size may be moulded from a plastics material of one colour, which differs from the colour of the plugs 14 of a different size.
The sprue 12 preferably includes a window 40 within which the gauge 20 is located.
Preferably, as shown in Figures 3 to 6, the gauge 20 includes a main body 18 which has an elongate probe 50 extending longitudinally from a slider mounting portion 52. The main body 18 is moulded integrally with the sprue 12 such that the sprue 12, wall plugs 14 and body 18 form a unitary one piece moulding.
The probe 50 preferably includes a hook portion 54 at a free end remote from the slider mounting portion 52.
The slider mounting portion 52 is preferably of planar form defining opposed sides 56,58, and opposed front and rear faces 60,62.
The gauge 20 preferably includes a measuring slider 64 slidably mounted on the slider mounting portion 52. The measuring slider 64 is preferably in the form of a casing which slidably engages the opposed sides 56,58 to be guided thereby during sliding movement along the slider mounting portion 52.
Preferably the casing includes a casing shell adapted to be mounted on the slider mounting portion 52 by laying the shell over the front face 60 of the slider mounting portion 52. As shown in Figure 4, the shell preferably includes first and second shell portions 66,68 having complementary engaging portions.
The complementary engaging portions preferably include at least one pair of parallel, resiliently deformable, fingers 70,72 provided on the second shell portion 68. At their free ends, the fingers 70,72 include formations 74,76 extending away from the fingers 70,72 in opposite directions to each other. The formations 74,76 define shoulders 78,80.
When the second shell portion 68 is laid over the rear face 62 of the slider mounting portion 52, and the first shell portion 66 is laid over the front face 60. The resilient deflectable fingers 70,72 are receivable in complementary slots 82,84 formed in the first shell portion 66. Once the fingers 70,72 are received in the slots 82,84, shoulders 78,80 prevent withdrawal of the fingers 70,72 by engaging the outer face of the first shell portion 66. This engagement enables the second shell portion 68 to be connected to the first shell portion 66 in a snap-fit manner.
The front face 60 of the slider mounting portion 52 preferably includes a series of parallel ridges 86 extending widthwise thereof, as shown in Figure 6. In use, the ridges 86 preferably limit sliding movement of the measuring slider 64 on the slider mounting portion 52 through engagement of a limiting member (not shown) provided on an inner surface of the first shell portion 66 with the ridges 86.
The limiting member is preferably a resiliently flexible member which engages the ridges 86 sequentially during sliding movement of the measuring slider 64 on the slider mounting portion 52. This engagement restricts sliding movement of the measuring slider 64 on the slider mounting portion 52 such that a positive force must be applied to the measuring slider 64 to cause sliding movement, and thereby prevent sudden, rapid and unwanted sliding movement.
The rear face 62 of the slider mounting portion 52 may include a scale which can be viewed through a window 88 (Figure 5) provided in the second shell portion 68 as the measuring slider 64 slides on the slider mounting portion 52.
In use, once the gauge 20 has been detached from the sprue 12, the gauge 20 may be used to measure the thickness of a cavity wall 90 by inserting the probe 50 into a bore 92 formed in the wall 90. The probe 50 is preferably inserted so that the hook portion 54 engages behind the rear surface 96 of the wall 90, as shown in Figure 7.
The measuring slider 64 may then be slid along the slider mounting portion 52 until it rests against the front surface 98 of the wall 90. In this arrangement, the length of the probe 50 exposed LE between the end of the measuring slider 64 and the hook portion 54 corresponds to the thickness of the cavity wall 90.
In embodiments where a scale is provided on the rear face 62 of the slider mounting portion 52, the scale is preferably arranged so that the value which can be viewed through the window 88 in the measuring slider 64 identifies the exposed length LE of the probe 50. This measurement may then be used to identify the most appropriate wall plug 14 for use in the bore 92.
In embodiments where a scale is not provided on the rear face 62, the exposed length LE of the probe 50 may be measured using a ruler. This measurement may then be used to identify the most appropriate wall plug 14 for use in the bore 92.
Alternatively, the exposed length LE of the probe 50 may be compared with wall plugs 14 to identify the most appropriate wall plug 14 for use in the bore 92.
Engagement between the limiting member and ridges 86 provided on the front face 60 of the slider mounting portion 52 prevents unwanted sliding movement of the measuring slider 64 along the slider mounting portion 52 during such measurements.

Claims

1. A wall plug and gauge assembly comprising a plurality of wall plugs moulded from a suitable plastics material, some of the plurality of wall plugs being of a different size to others for use with different thicknesses of wall and a gauge adapted to determine the thickness of a wall and indicate the appropriate size of plug to be selected for use from said plurality of wall plugs.
2. An assembly according to Claim 1 wherein the plurality of wall plugs are secured to a support body, the plurality of wall plugs and said support body being a one piece moulding, the gauge being detachably attached to the support body.
3. An assembly according to Claim 2 wherein the support body is generally in the form of a planar body having a window formed therein, the main body of said gauge being located within said window.
4. An assembly according to Claim 2 or 3 wherein each of said plugs has a generally cylindrical body for location within a bore formed in a cavity wall, the cylindrical bodies of said plugs having the same outer diameter but being of varying lengths to define said different sizes.
5. An assembly according to Claim 2, 3 or 4 wherein the main body of the gauge includes an elongate probe portion for insertion into a bore formed in a wall, the elongate probe portion extending longitudinally from a slider mounting portion upon which a measuring slider is slidably mounted.
6. An assembly according to Claim 5 wherein the slider mounting portion is of planar form defining opposed sides and opposed front and rear faces.
7. An assembly according to Claim 6 wherein the measuring slider is in the form of a casing which slidably engages said opposed sides to be guided thereby during sliding movement along the slider mounting portion.
8. An assembly according to Claim 7 wherein the casing includes a casing shell which is adapted to be mounted upon the slider mounting portion by laying the shell over the front face of the slider mounting portion.
9. An assembly according to any preceding claim wherein said support body is a sprue.
PCT/GB2004/001021 2003-03-10 2004-03-09 Wall plug and gauge assembly WO2004081489A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0305313A GB0305313D0 (en) 2003-03-10 2003-03-10 Wall plug and gauge assembly
GB0305313.9 2003-03-10

Publications (1)

Publication Number Publication Date
WO2004081489A1 true WO2004081489A1 (en) 2004-09-23

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ID=9954368

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2004/001021 WO2004081489A1 (en) 2003-03-10 2004-03-09 Wall plug and gauge assembly

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GB (1) GB0305313D0 (en)
WO (1) WO2004081489A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH418655A (en) * 1965-03-17 1966-08-15 Hofer Arnold Measuring instrument
CH443796A (en) * 1967-01-11 1967-09-15 Baillod Frederic Synthetic pad
US3416650A (en) * 1965-09-04 1968-12-17 Mortensen Louis Ackersberg Holder for screw anchors
US4887717A (en) * 1989-07-03 1989-12-19 Secrest Engineered Products, Inc. Packaging with a gauge or tool formed from the package
DE29619620U1 (en) * 1996-11-12 1997-01-09 Idea Productservice Gmbh Keychain

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH418655A (en) * 1965-03-17 1966-08-15 Hofer Arnold Measuring instrument
US3416650A (en) * 1965-09-04 1968-12-17 Mortensen Louis Ackersberg Holder for screw anchors
CH443796A (en) * 1967-01-11 1967-09-15 Baillod Frederic Synthetic pad
US4887717A (en) * 1989-07-03 1989-12-19 Secrest Engineered Products, Inc. Packaging with a gauge or tool formed from the package
DE29619620U1 (en) * 1996-11-12 1997-01-09 Idea Productservice Gmbh Keychain

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