Construction Deck Hoist With Retractable Platform
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Solution Overview
Problem
Construction decks often require shore posts for support, which can be limiting, especially on weak or non-existent top structures, and existing solutions do not efficiently manage the extension and retraction of platforms for load handling near building edges.
Innovation Solution
A deck system with a stationary support structure, hydraulic cylinders, and extension members that allow a platform to retractably extend beyond the building edge, incorporating features like hoists, counterweights, and fold-away ramps to enhance load handling and reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If shore posts are used to support the deck, then the deck can be supported on weak or non-existent top structures, but the device complexity increases and the platform extension capability is limited
Solution Approach 1:
The patent removes shore posts from the support system entirely, extracting the supporting function to the floor structure itself through strategically positioned legs and extension members that transfer loads directly to the floor, eliminating the need for intermediate shore post support
Solution Approach 2:
The patent employs dynamically adjustable extension members that can telescopingly extend and retract, and legs that can be positioned at different locations, allowing the deck to adapt its configuration based on load requirements and floor strength conditions without requiring complex shore post assemblies
2Ease of operation
If the platform is extended beyond the building edge for load handling, then access to loads is facilitated, but the platform may interfere with building operations when not in use
Solution Approach 1:
The patent employs a retractable platform design where the extension members can telescopingly extend beyond the building edge during load operations and then retract back into the building footprint when not in use, dynamically adapting the platform's reach to match operational requirements
Solution Approach 2:
The platform is divided into a stationary base portion within the building and an extendable portion beyond the edge, allowing the extendable portion to be deployed only when needed for load handling while the main structure remains confined to the building footprint
3Strength
If the deck is designed to support heavy loads without shore posts, then the load-carrying capacity increases, but the structural requirements for the floor become more demanding
Solution Approach 1:
The patent concentrates loads at specific localized points through strategically positioned legs and extension members rather than distributing them across the entire deck structure, allowing the floor to support heavy loads at discrete locations without requiring overall strengthening of the floor system
Solution Approach 2:
The patent incorporates counterweights that can be positioned to balance and offset applied loads, reducing the net stress transmitted to the floor structure and enabling the deck to handle heavier loads without proportionally increasing floor stress
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system increases load-carrying capacity, reduces the need for shore posts, and allows safe and efficient access to loads near building edges or in areas without top structures, improving construction efficiency and safety.
Implementation Method 1
at least one hydraulic cylinder mounted on the plate; a first extension member that is slidably disposed within the first box tube; a second extension member that is slidably disposed within the second box tube; a beam that extends between the first and second extension members, the beam coupled to the at least one hydraulic cylinder
Implementation Method 2
the platform including at least one wheel operable to roll on the plate for distributing at least some weight from the platform to the floor of the building
Implementation Method 3
The system increases load-carrying capacity, reduces the need for shore posts, and allows safe and efficient access to loads near building edges or in areas without top structures
Data Source
AI summary
This invention relates generally to a method for making a deck for use in construction. In one embodiment, the method includes, but is not limited to, positioning a first box tube substantially parallel to a second box tube; attaching a plate to the first box tube and the second box tube, the plate extending between the first box tube and the second box tube; coupling a hydraulic cylinder to the plate; slidably inserting a first extension member at least partially into the first box tube; slidably inserting a second extension member at least partially into the second box tube, the first and second extension members having a beam extending therebetween; coupling the hydraulic cylinder to the beam; positioning a platform having one or more wheels on the plate and over the hydraulic cylinder such that the platform is rollable relative to the plate; attaching the platform to the beam such that the platform is operable to retractably extend beyond an edge of a floor of a building in conjunction with the first and second extension members in response to actuation of the at least one hydraulic cylinder; and forming a rectangular cuboid basket comprised of six faces with a connecting mechanism on a top face.