Foldable deckchair for a child
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Solution Overview
Problem
Existing folding deckchairs for children are bulky and have complex, difficult-to-use connecting mechanisms that violate safety standards, making them cumbersome to store and operate.
Innovation Solution
A foldable deckchair design featuring a frame, seat structure, and a connecting mechanism with a drive shaft and locking device housed in a central casing, allowing easy folding and locking with minimal parts, including a sleeve and protective sheath for the drive shaft, and a simple locking device with a first and second element for intuitive operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a connecting mechanism with multiple parts and locking devices is used, then the deckchair can be folded, but the device complexity increases and ease of operation decreases
Solution Approach 1:
The patent combines the drive shaft and locking device into a single integrated connecting mechanism. The drive shaft serves dual functions: it enables folding movement and incorporates the locking device directly on its surface. This merging eliminates the need for separate locking mechanisms and reduces the overall number of parts while maintaining both folding capability and secure locking function.
2Reliability
If a complex locking device is used, then the deckchair can be securely locked, but the ease of operation deteriorates due to poor accessibility and complex handling
Solution Approach 1:
The locking device is designed to be actuated by the natural folding motion of the deckchair itself. When the parent folds the deckchair by applying force to the seat structure, the drive shaft rotates and automatically engages the locking teeth with the stationary frame. The system uses the folding action to lock itself, eliminating the need for separate locking operations and improving accessibility.
3Adaptability or versatility
If a bulky design is used, then the deckchair provides adequate space for the child, but the volume increases making storage difficult
Solution Approach 1:
The deckchair employs a dynamic folding mechanism that transforms the structure from an extended use position to a compact storage position. The drive shaft enables smooth rotation of the seat structure relative to the stationary frame, allowing the deckchair to transition between states. This dynamic capability maintains adequate child space during use while minimizing storage volume when folded.
Data Source
AI summary
The disclosure relates to a foldable deckchair for a child comprising a frame, a seat structure configured to carry a flexible element for receiving a child, and a connecting mechanism for a connection between the frame and the seat structure. According to the disclosure, the connecting mechanism comprises a drive shaft which extends along a longitudinal axis between two ends connected to two uprights of the seat structure, and a central casing, attached to the frame, which is passed through on either side by the drive shaft along the longitudinal axis, and in that the deckchair comprises a locking device which is housed in the central casing and which comprises a first element secured in terms of movement to the drive shaft and a second element movable between a locked position in which the first element is locked and a un locked position in which the first element is unlocked.