Advance installation guardrail assembly for scaffolding systems
AssigneeAt-Pac China Business Trust
InventorPeter Rogers
Life of this patent
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Abstract
A scaffolding system includes a guardrail ledger having an elongated support member, a ledger head coupled to a first end of the elongated support member, and a hook ledger head coupled to a second end of the elongated support member. The hook ledger head is formed to include a first prong and a second prong configured to extend into a scaffolding rosette of a vertical scaffolding post to assist in the installation of the guardrail ledger prior to assembly of a work platform for an upper level of the scaffolding system.
Claims23
A guardrail ledger for use with a scaffolding system, the guardrail ledger comprising:
- an elongated support member that extends along an axis between a first end and a second end of the elongated support member,
- a ledger head coupled to the first end of the elongated support member, the ledger head having an upper ledger body and a lower ledger body with a horizontal slot formed between the upper ledger body and the lower ledger body for receiving a first scaffolding rosette therein, and
- a hook ledger head coupled to the second end of the elongated support member, the hook ledger head including a ledger connector base coupled with the second end of the elongated support member, a prong support body that extends from an upper end of the ledger connector base to form an open space vertically below the prong support body, and a pair of prongs that extend vertically downward from the prong support body, and wherein the prong support body is formed to define a first slot therein for receiving a first wedge to couple the hook ledger head with a second scaffolding rosette.
(canceled)
-27. (canceled)
A method of assembling a scaffolding system, the method comprising:
- inserting a first prong and a second prong of a hook ledger head into corresponding holes formed in a first scaffolding rosette of a first vertical scaffold post, the hook ledger head connected with a first end of an elongated support member,
- coupling a ledger head to a second scaffolding rosette of a second scaffold post, the ledger head being coupled to a second end of the elongated support member while allowing limited movement relative to the elongated support member,
- moving the ledger head and the second scaffold post upwardly while the first prong and the second prong are retained in the holes formed in the first scaffolding rosette,
- coupling the second scaffold post vertically to a spigot of the scaffolding system such that the second scaffold post extends generally vertically away from the spigot and the elongated support member extends generally horizontally, and
- moving a wedge through a first slot formed in the hook ledger head so that the wedge extends through the hook ledger head and interlocks the hook ledger head with the scaffolding rosette.
(canceled)
Dependencies are inferred from the claim text.