Construction prop assembly
DCFirst Claim
1. An improved grid shoring system comprising:
- one or more fixed beam-head prop assemblies supporting 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 comprisesa threaded shaft having an external diameter and an external threading andan 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 byselectively sliding said threaded shaft in an up and down direction through said lower central shaft of said lower portion, andvertically 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 byaligning 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, andinserting and locking 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 portion 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 comprisinga central shaft having a central fixed beam-head aperture having an internal diameter, a first end and a second end,a bottom plate having a plurality of fastening apertures, anda second end cap seat attached around and to said central shaft;
said prop comprisinga central shaft having a first end and a second end, anda prop top plate having a plurality of fastening apertures;
said central shaft of said prop comprises central prop aperture having a first end aperture and an internal diameter; and
said plurality of fastening apertures of said prop top plate of said prop align and attach to said plurality of fastening apertures of said bottom plate of said fixed beam-head.
1 Assignment
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Accused Products
Abstract
A construction beam head assembly comprising an improved forming system having one or more fixed beam-head prop assemblies each having an upper portion and a lower portion. The upper portion having a screw-jack threaded shaft assembly and a drop-head The lower portion comprising of a prop and a collar The screw-jack threaded shaft assembly having an external diameter and an external threading The screw-jack threaded shaft assembly attaches to the drop-head The upper portion selectively slides into the lower portion The collar having an internal threading and an internal diameter The internal threading of the collar rotateably attaches to the external threading of the screw-jack threaded shaft assembly of the upper portion. The upper portion and the lower portion adjustably attach to one another with the collar and the screw-jack threaded shaft assembly to provide a variable height of the prop assembly.
19 Citations
16 Claims
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1. An improved grid shoring system comprising:
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one or more fixed beam-head prop assemblies supporting 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 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 portion 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 fixed beam-head aperture 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 prop top plate having a plurality of fastening apertures; said central shaft of said prop comprises central prop aperture having a first end aperture and an internal diameter; and said plurality of fastening apertures of said prop top plate of said prop align and attach to said plurality of fastening apertures of said bottom plate of said fixed beam-head.
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2. An improved grid shoring system comprising:
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one or more fixed beam-head prop assemblies supporting 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 comprises 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 one or more nut and bolt assemblies through said plurality of fastening apertures in said bottom plate and said upper attachment plate; said drop-head comprising a first end cap seat, a star and an external pin. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of using an improved grid shoring system, comprising:
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supporting one or more beams on a first end cap seat and a second end cap seat of 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; 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;
wherein,said lower portion comprises said prop having said lower exterior portion, said upper interior portion, and said prop lock; and said one or more fixed beam-head prop assemblies comprise said lower portion having a central fixed beam-head shaft, an upper portion having said threaded shaft, said threaded collar. - View Dependent Claims (14, 15)
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16. An improved grid shoring system comprising:
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one or more fixed beam-head prop assemblies supporting 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 comprises 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 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; and adjusting said variable height of said first end cap seat comprises adjusting said threaded collar between said upper portion and said lower portion of said one or more fixed beam-head prop assemblies.
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Specification