A perimeter protection system for protecting operators against lateral falling when installing formwork panels in a horizontal formwork system. According to one embodiment the perimeter protection system includes a perimeter protection structure configured for being fixed, in a working position, to the horizontal formwork system, and at least one auxiliary device configured for being fixed to the horizontal formwork system and for fixing the perimeter protection structure to the horizontal formwork system. The auxiliary device includes guiding means collaborating with a guide of the perimeter protection structure for positioning the perimeter protection structure in an initial assembly position. In the initial assembly position the structure is configured to be raised up to an intermediate position where it is permitted to swing until it is positioned in the working position.

A modular guard rail for construction scaffolding includes first and second vertical support members and horizontal rails defining a guard rail frame. Support brackets are provided for engaging respective vertical posts of the construction scaffolding and a horizontal supporting strut of the construction scaffolding.

Scaffolding, coupling device and method for erecting a scaffolding During erection of a scaffolding use is made of a coupling device with a base part (20) which is connected temporarily, but reliably, to a distal section of a ledger element (10) and to a coupling part (30) extending from the base part (20). The coupling part (30) comprises at the outer end a hook (35) which is placed round a subsequent upright (5) of the scaffolding in order to thus make a secondary connection thereto, while a primary connection (9,11) between the ledger (10) and the upright (5) is only completed later.

The invention relates to a temporary scaffolding rest which temporarily supports a standby scaffolding component upon a scaffolding upright in a first temporary disconnected position which is laterally offset from the scaffolding upright for subsequent installation of said standby scaffolding component to a portion of said upright in a second installed position which is laterally inset from the first temporary disconnected position. The temporary scaffolding rest includes a temporary connector for temporarily connecting the temporary scaffolding rest to said portion of said scaffolding upright, and an elongated rest which extends laterally from the temporary connector in order to temporarily support a portion of said standby scaffolding adjacent said portion of said scaffolding upright in said first temporary disconnected laterally offset position ready for subsequent installation to said portion of said scaffolding upright in said second installed position. A method of erecting a row of scaffolding which is higher than the row of scaffolding upon which an installer is positioned is also provided.

Folding rail assembly for a scaffold, comprising an upper rail part, a middle rail part, a first post, and a second post which are mutually hingedly connected for adjusting between a folded-in configuration and a folded-out configuration. The first post is provided with a coupling hook structure to suspend the first post from a rosette of a standard of the scaffold in an opening of the rosette with play. At the coupling hook structure a locking hook structure is provided which is configured for, depending on a rotation position of the locking hook structure relative to the rosette, counteracting the first post, by moving up, being brought out of its state suspended from the rosette. By rotation of the rail assembly around a rotation axis parallel to the standard, the locking hook structure can be brought in a locking position to counteract the suspended post coming loose.

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.

A scaffold comprising at least two horizontally adjacent scaffold sections, the scaffold sections being defined substantially by lengthwise ledgers, transverse ledgers and uprights, characterized in that the scaffold comprises a guide adapted to be able to displace in substantially horizontal direction therealong a displaceable platform corresponding thereto and guided thereby; a method for erecting the scaffold, and a mobile platform.