Dowel sleeves

• US 8,142,104 B2
• Filed: 06/27/2011
• Issued: 03/27/2012
• Est. Priority Date: 10/03/2008
• Status: Active Grant

• Current Assignee: Leviat (CRH PLC)
• Original Assignee: Connolly Key Joint Pty., Ltd.
• Inventors: Mercer, John, Connolly, Mark Anthony
• Primary Examiner(s): Addie, Raymond W
• Application Number:
  US13/135,142
• Publication Number:
  US 20110255920A1
• Time in Patent Office: 274 Days
• Field of Search: 404 43- 63, 404134-136
• US Class Current: 404/136
• CPC Class Codes: E01C 11/14 Dowel assembly ; Design or construction of reinforcements in the area of joints coupling devices for prefabricated units E01C5/005; combined with characteristic packings E01C11/08 - E01C11/12; removable holders E01C23/045
• CPC Class Codes: E04B 1/483 Shear dowels to be embedded in concrete

Abstract

A support leg for a dowel sleeve, the dowel sleeve having a hollow open body at a second end spaced from one end of the body connectable to a construction plate. The support leg has a spigot engagable in the body, the exterior of which is engaged by an abutment face. The effective length of the support leg is adjustable by selectively detaching one or more leg member segments, each provided with a disc-like base member.

Claims

1. A support leg for a dowel sleeve, the dowel sleeve having a hollow body open at a second end spaced from a one end of the body connectable to a construction plate, the support leg including:

a base member engagable with a support surface;

a leg member extending upwardly, in use, from the base member; and

a spigot, at a distal, or upper, end of the leg member, extending substantially perpendicular thereto, and operable to be inserted into the hollow body of the dowel sleeve, at the second end thereof, wherein the leg member has an abutment face or member to engage an exterior profile of the hollow body of the dowel sleeve at, or adjacent, the second end thereof, the abutment face or member being spaced below the spigot a distance substantially equal, or just greater than, a wall thickness of the second end of the hollow body.

2. A support leg as claimed in claim 1, wherein:

the spigot has a configuration, in end elevation, complementary to an interior profile of the hollow body of the dowel sleeve at, or adjacent, the second end thereof; and

the spigot is of rectangular, square, circular or cruciform configuration.

3. A support leg as claimed in claim 2, wherein:

external dimensions of the spigot, in end elevation, are equal to, or just greater than, the corresponding dimensions of the interior profile of the second end of the hollow body, so that the spigot will be restrained against accidental, or inadvertent, release from the hollow body.

4. A support leg as claimed in claim 1, wherein:

the, or each, base member is of a plate- or disc-like configuration, and is of circular, rectangular, square, hexagon, other regular-polygon, or irregular shape, in plan view.

5. A support leg for a dowel sleeve, the dowel sleeve having a hollow body open at a second end spaced from a one end of the body connectable to a construction plate, the support leg including:

a base member engagable with a support surface;

a leg member extending upwardly, in use, from the base member; and

a spigot, at a distal, or upper, end of the leg member, extending substantially perpendicular thereto, and operable to be inserted into the hollow body of the dowel sleeve, at the second end thereof, wherein;

the leg member incorporates a plurality of interconnected, but detachable, segments, each segment having a respective base member, so arranged that by detaching one or more segments, the effective height of the leg member is adjustable.

6. A dowel sleeve, having a hollow body open at a second end spaced from a one end of the body connectable to a construction plate, provided with a support leg, as claimed in claim 5, engaged with the second end of the hollow body.

7. A support leg according to claim 5, wherein:

the spigot has a configuration, in end elevation, complementary to an interior profile of the hollow body of the dowel sleeve at, or adjacent, the second end thereof; and

the spigot is of rectangular, square, circular or cruciform configuration.

8. A support leg according to claim 7, wherein:

external dimensions of the spigot, in end elevation, are equal to, or just greater than, the corresponding dimensions of the interior profile of the second end of the hollow body, so that the spigot will restrained against accidental, or inadvertent, release from the hollow body.

9. A support leg according to claim 5, wherein:

the, or each, base member is of a plate- or disc-like configuration, and is of circular, rectangular, square, hexagon, other regular-polygon, or irregular shape, in plan view.