Construction Prop Assembly

• US 20160060882A1
• Filed: 11/14/2014
• Published: 03/03/2016
• Est. Priority Date: 09/02/2014
• Status: Active Grant

• Current Assignee: Bond Formwork Systems, LLC
• Original Assignee: Concrete Support Systems of Houston LLC
• Inventors: Bond, Bradley D.A.
• Granted Patent: US 10,024,069 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: E04G 11/38 for plane ceilings of concrete
• CPC Class Codes: E04G 11/48 Supporting structures for shutterings or frames for floors or roofs struts E04G25/00
• CPC Class Codes: E04G 11/483 Supporting heads E04G11/486 takes precedence
• CPC Class Codes: E04G 11/486 Dropheads supporting the concrete after removal of the shuttering; Connecting means on beams specially adapted for dropheads
• CPC Class Codes: E04G 13/062 for stairs or steps
• CPC Class Codes: E04G 2025/042 with devices to avoid accidental disengagement of the telescopic elements, e.g. during transport
• CPC Class Codes: E04G 25/065 by a threaded nut

Abstract

An improved construction beam head assembly, comprising an improved forming system comprising a one or more fixed beam-head prop assemblies each having an upper portion and a lower portion. Said upper portion having a screw-jack threaded shaft assembly and a drop-head Said lower portion comprising of a prop and a collar Said screw-jack threaded shaft assembly having an external diameter and an external threading Said screw-jack threaded shaft assembly attaches to said drop-head Said upper portion selectively slides into said lower portion Said collar having an internal threading and an internal diameter Said internal threading of said collar rotateably attaches to said external threading of said screw-jack threaded shaft assembly of said upper portion. Said upper portion and said lower portion adjustably attach to one another with said collar and said screw-jack threaded shaft assembly to provide a variable height of said prop assembly.

Claims

1. An improved grid shoring system comprising:

a one or more fixed beam-head prop assemblies supporting a one or more beams;

each of said one or more fixed beam-head prop assemblies comprise an upper portion, a lower portion, a variable height, and a threaded collar;

said upper portion having a screw-jack threaded shaft assembly;

said screw-jack threaded shaft assembly comprises

a threaded shaft having an external diameter and an external threading and

an upper attachment plate having a plurality of fastening apertures;

said upper portion of said one or more fixed beam-head prop assemblies selectively slide into said lower portion of said one or more fixed beam-head prop assemblies;

said threaded collar comprises an internal threading and an internal diameter;

said internal threading of said threaded collar rotateably attaches to said external threading of said screw-jack threaded shaft assembly of said upper portion;

said lower portion comprises a lower central shaft having an internal diameter being larger than said external diameter of said threaded shaft;

said upper portion and said lower portion adjustably attach to one another by

selectively sliding said threaded shaft in an up and down direction through said lower central shaft of said lower portion, and

vertically adjusting said threaded collar along said threaded shaft to select said variable height;

said upper portion comprises a first end cap seat;

said lower portion comprises a second end cap seat;

said upper portion having a drop-head;

said drop-head comprises a bottom plate having a plurality of fastening apertures;

said screw-jack threaded shaft assembly attaches to said drop-head by

aligning said plurality of fastening apertures of said bottom plate of said drop-head with said plurality of fastening apertures of said upper attachment plate of said screw-jack threaded shaft assembly, and

inserting and locking a one or more nut and bolt assemblies through said plurality of fastening apertures in said bottom plate and said upper attachment plate;

said first end cap seat is selectively attached to said drop-head of said upper portion;

said first end cap seat comprises a variable height;

adjusting said variable height of said first end cap seat comprises adjusting said threaded collar between said upper portion and said lower portions of said one or more fixed beam-head prop assemblies;

said lower portion comprising of a prop and a fixed beam-head;

said fixed beam-head comprising

a central shaft having a central shaft having an internal diameter, a first end and a second end,

a bottom plate having a plurality of fastening apertures, and

a second end cap seat attached around and to said central shaft;

said prop comprising

a central shaft having a first end and a second end, and

a top plate having a plurality of fastening apertures;

said central shaft of said prop comprises central shaft having a first end aperture and an internal diameter; and

said plurality of fastening apertures of said top plate of said prop align and attach to said plurality of fastening apertures of said bottom plate of said fixed beam-head.

2. An improved grid shoring system comprising:

a one or more fixed beam-head prop assemblies supporting a one or more beams;

each of said one or more fixed beam-head prop assemblies comprise an upper portion, a lower portion, a variable height, and a threaded collar;

said upper portion having a screw-jack threaded shaft assembly;

said screw-jack threaded shaft assembly comprises

a threaded shaft having an external diameter and an external threading and

an upper attachment plate having a plurality of fastening apertures;

said upper portion of said one or more fixed beam-head prop assemblies selectively slide into said lower portion of said one or more fixed beam-head prop assemblies;

said threaded collar comprises an internal threading and an internal diameter;

said internal threading of said threaded collar rotateably attaches to said external threading of said screw-jack threaded shaft assembly of said upper portion;

said lower portion comprises a lower central shaft having an internal diameter being larger than said external diameter of said threaded shaft;

said upper portion and said lower portion adjustably attach to one another by

selectively sliding said threaded shaft in an up and down direction through said lower central shaft of said lower portion, and

vertically adjusting said threaded collar along said threaded shaft to select said variable height;

said upper portion comprises a first end cap seat; and

said lower portion comprises a second end cap seat.

3. The improved grid shoring system of claim 2, wherein:

said upper portion comprises a drop-head;

said drop-head comprises a bottom plate having a plurality of fastening apertures; and

said screw-jack threaded shaft assembly attaches to said drop-head by

aligning said plurality of fastening apertures of said bottom plate of said drop-head with said plurality of fastening apertures of said upper attachment plate of said screw-jack threaded shaft assembly, and

inserting and locking a one or more nut and bolt assemblies through said plurality of fastening apertures in said bottom plate and said upper attachment plate.

4. The improved grid shoring system of claim 3, wherein:

said plurality of apertures of said upper attachment plate comprises at least a first aperture and a second aperture;

said plurality of apertures of said bottom plate of said drop-head comprises at least a first aperture and a second aperture; and

at least said first aperture and said second aperture of said bottom plate of said drop-head and said upper attachment plate of said screw-jack threaded shaft assembly align with one another and receive said one or more nut and bolt assemblies to hold said drop-head to said screw-jack threaded shaft assembly.

5. The improved grid shoring system of claim 3, further comprising:

said drop-head comprising a first end cap seat, a star and an external pin.

6. The improved grid shoring system of claim 3, wherein:

said first end cap seat is selectively attached to said drop-head of said upper portion;

said first end cap seat comprises a variable height; and

adjusting said variable height of said first end cap seat comprises adjusting said threaded collar between said upper portion and said lower portions of said one or more fixed beam-head prop assemblies.

7. The improved grid shoring system of claim 2, further comprising:

said threaded collar comprises a ring portion having a central shaft;

said central shaft being cylindrical and having said internal threading and said internal diameter; and

said threaded collar further comprising

a first handle extending out from said ring portion and providing leverage for turning said threaded collar relative to said screw-jack threaded shaft assembly.

8. The improved grid shoring system of claim 2, further comprising

forming said improved grid shoring system with said one or more fixed beam-head prop assemblies by:

adjusting a height of each among said one or more fixed beam-head prop assemblies,

arranging said one or more fixed beam-head prop assemblies,

attaching said one or more fixed beam-head prop assemblies to one another with said one or more beams, and

attaching a one or more panels to said one or more beams.

9. The improved grid shoring system of claim 2, wherein:

said lower portion comprising of a prop and a fixed beam-head;

said fixed beam-head comprising

a central shaft having a central shaft having an internal diameter, a first end and a second end,

a bottom plate having a plurality of fastening apertures, and

a second end cap seat attached around and to said central shaft;

said prop comprising

a central shaft having a first end and a second end, and

a top plate having a plurality of fastening apertures;

said central shaft of said prop comprises central shaft having a first end aperture and an internal diameter; and

said plurality of fastening apertures of said top plate of said prop align and attach to said plurality of fastening apertures of said bottom plate of said fixed beam-head.

10. The improved grid shoring system of claim 9, wherein:

said prop comprises a prop lock, an upper interior portion and a lower exterior portion;

said prop lock selectively attaches to a portion of said lower exterior portion of said prop;

said upper interior portion comprises a plurality of side apertures; and

said lower exterior portion attaches to said upper interior portion by

aligning an external aperture of said lower exterior portion with a one of said plurality of side apertures,

inserting a locking element through said external aperture and said one of said plurality of side apertures, and

locking said prop lock in place.

11. The improved grid shoring system of claim 9, wherein:

said prop comprises a foot at said second end of said central shaft.

12. The improved grid shoring system of claim 9, wherein:

said fixed beam-head further comprises said top plate attached to said first end of said central shaft.

13. The improved grid shoring system of claim 9, wherein:

said second end cap seat of said fixed beam-head is welded to said central shaft at a welding point.

14. The improved grid shoring system of claim 9, wherein:

said top plate comprises a platform;

said threaded collar sits on said platform when a portion of said upper portion is inserted into a portion of said lower portion;

said central shaft comprises

a first end opening at said first end and

a second end opening in said second end;

said threaded collar comprises a ring portion having a central shaft;

said ring portion having an internal diameter; and

said external diameter of said ring portion of said threaded collar is larger than said internal diameter of said central shaft of said fixed beam-head.

15. The improved grid shoring system of claim 9, further comprising:

an upper portion having a drop-head;

a first end cap seat being selectively attached to said drop-head; and

said second end cap seat of said fixed beam-head is affixed to said fixed beam-head.

16. A method of using an improved grid shoring system, comprising:

supporting a one or more beams on a first end cap seat and a second end cap seat of a one or more fixed beam-head prop assemblies;

selectively adjusting a height of said first end cap seat by

sliding a threaded shaft in an up and down direction through a lower central shaft of a lower portion, and

vertically adjusting a threaded collar along said threaded shaft to select a variable height; and

wherein,

said one or more fixed beam-head prop assemblies comprise

said lower portion having a central shaft,

an upper portion having said threaded shaft,

said threaded collar.

17. The method of using an improved grid shoring system of claim 16, further comprising:

attaching a screw-jack threaded shaft assembly to a drop-head comprises;

aligning a plurality of fastening apertures of a bottom plate of said drop-head with a plurality of fastening apertures of an upper attachment plate of said screw-jack threaded shaft assembly, and

inserting and locking a one or more nut and bolt assemblies through said plurality of fastening apertures in said bottom plate and said upper attachment plate;

and wherein,

said upper portion comprises said drop-head and said screw-jack threaded shaft assembly, and

said drop-head comprises said bottom plate having said plurality of fastening apertures.

18. The method of using an improved grid shoring system of claim 16, further comprising:

forming said improved grid shoring system with said one or more fixed beam-head prop assemblies by;

adjusting a height of each among said one or more fixed beam-head prop assemblies,

arranging said one or more fixed beam-head prop assemblies,

attaching said one or more fixed beam-head prop assemblies to one another with said one or more beams, and

attaching a one or more panels to said one or more beams.

19. The method of using an improved grid shoring system of claim 16, further comprising:

attaching a lower exterior portion of a prop to an upper interior portion comprises

aligning an external aperture of said lower exterior portion with a one of said plurality of side apertures,

inserting a locking element through said external aperture and said one of said plurality of side apertures, and

locking a prop lock in place; and

wherein

said lower portion comprises said prop having said lower exterior portion, said upper interior portion, and said prop lock.