Sliding Davit Arm Layout for Multi-Boat Launch and Storage
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Solution Overview
Problem
Existing davit devices are limited to hoisting and launching a single boat at a time, lacking the capability to efficiently manage multiple boats or cargo devices simultaneously without requiring intermediate rearrangement or additional infrastructure.
Innovation Solution
A davit arrangement with a telescopic part and cylinder mechanism allows for the simultaneous handling of multiple boats or cargo devices, utilizing a two-point or one-point system to extend and retract the davit arm and carrier construction, enabling direct storage and launch operations without the need for additional carriers or rails beneath the davit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a known davit device is used with a single hoisting device, then the structure is simple and easy to operate, but it can only hoist and launch one boat at a time, reducing productivity
Solution Approach 1:
The patent combines multiple hoisting devices (first hoisting device and second hoisting device) into a single integrated davit system. The first hoisting device handles the outer boat while the second hoisting device handles the inner boat, allowing simultaneous operation without requiring separate independent systems. This merging approach increases productivity by enabling parallel boat handling while maintaining structural integration.
Solution Approach 2:
The davit system is segmented into distinct functional components: a carrier construction with multiple carrier arms, separate hoisting devices for outer and inner boats, and independent cylinder arrangements. This segmentation allows each component to perform its specific function efficiently while being part of a coordinated whole, enabling simultaneous handling of multiple boats without excessive overall complexity.
2Productivity
If carriers or rails are added beneath the davit to facilitate boat movement in storage area, then multiple boats can be handled, but the device complexity increases and requires additional infrastructure
Solution Approach 1:
The carrier construction serves multiple functions: it supports both outer and inner boats simultaneously, provides mounting points for multiple hoisting devices, and enables both boats to be positioned and launched independently. This multi-functionality eliminates the need for separate carriers or rails beneath the davit, as the carrier construction itself handles all positioning and support requirements.
Solution Approach 2:
The patent extracts the boat movement and positioning function from the deck level (where carriers or rails would be needed) and relocates it to the davit arm level. The carrier arms and hoisting devices perform all necessary positioning, lifting, and launching operations directly at the boat level, eliminating the need for intermediate ground-level infrastructure.
3Area of stationary object
If the davit arm and cylinder arrangement extend in opposite directions, then the deck space is maximized for flush deck configuration, but the mechanical design becomes more complex
Solution Approach 1:
The cylinder arrangement is configured to extend in the longitudinal direction (parallel to the rail construction), while the davit arm extends in the lateral direction (perpendicular to the rail construction). This orthogonal arrangement in different dimensions allows both components to extend fully without interfering with each other, maximizing deck space while maintaining functional independence.
Solution Approach 2:
The davit system employs asymmetric positioning of the cylinder arrangement relative to the davit arm. The cylinder is mounted on one side of the davit arm and extends perpendicular to it, creating an asymmetric L-shaped configuration when both are extended. This asymmetric design optimizes space utilization and allows for a flush deck appearance while maintaining full operational range.
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
Facilitates the quick and efficient launch or retrieval of multiple boats or cargo devices using a davit system, allowing for a flush deck configuration and reducing operational steps, thus enhancing the versatility and efficiency of boat handling.
Implementation Method 1
a cylinder arrangement (4) connected to the carrier construction (1, 2) at one end and connected to the rail construction (3) at the opposite end, said cylinder arrangement (4) being adapted to move the carrier construction (1, 2)
Data Source
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AI summary
A davit arrangement for launching and storing one or more boats or cargo devices, comprising - a carrier construction (1, 2 ) slidingly connected to a rail construction (3), said rail construction (3) is adapted to be fixedly attached to a roof or other overhanging construction (9), - a davit arm (6) arranged slidingly connected to the carrier construction (1, 2), said davit arm (6) is adapted to move between a launching position where the davit arrangement is adapted to hoist the boat or cargo device (A, B) to or from the sea surface, and an intermediate position where the boat is retracted into a position within the carrier construction (1, 2) of the davit arrangement, - a cylinder arrangement (4) is connected to the carrier construction (1, 2) at a point (4a) and connected to the rail construction (3) at an end (4b), said cylinder arrangement (4) is adapted to move the carrier construction (1, 2) between the intermediate position and a storage position where the boat or cargo device (A, B) is adapted to be stored, said davit arm (6) and cylinder arrangement (4) is adapted to extend in laterally opposite directions. The invention further relates to a method for transporting one or more boats or cargo devices to/from a parking area from/to a sea surface.