Stroller Handle Lock Selector for Directional Unlocking
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Solution Overview
Problem
Existing stroller lock mechanisms risk unintended unlocking due to potential operator mistakes when selecting the wrong unlock module, leading to confusion between different lock mechanisms.
Innovation Solution
A stroller design with a handle frame that includes an operation member operable in distinct first and second directions to selectively actuate first and second lock mechanisms, utilizing first and second actuation members connected via different connecting members, allowing easy differentiation between lock operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a selection member is provided that is slidable along the central axis of the handle to select between first and second unlock modules, then the operator can choose which lock mechanism to unlock, but there is a possibility that the operator may mistakenly move the selection member to the wrong side and push the operation member, which may lead to an unintended unlocking operation
Solution Approach 1:
The operation member is configured to be operated in multiple directions (first direction and second direction that intersect each other). The first actuation member is displaced in a first direction by operating the operation member in a first direction, and the second actuation member is displaced in a second direction by operating the operation member in a second direction. This dimensional differentiation allows clear distinction between selecting different lock mechanisms, preventing accidental selection of the wrong module.
2Ease of operation
If separate selection and actuation operations are required (moving selection member to right or left side and then pushing operation member), then the unlock module corresponding to the selected lock mechanism is actuated, but the multi-step process increases the likelihood of operator mistake and confusion
Solution Approach 1:
The selection and actuation functions are merged into a single operation member. By operating the operation member in different directions, both the selection of which lock mechanism to actuate and the actuation itself are accomplished in one continuous motion, eliminating the separate selection and actuation steps that caused confusion in the prior art.
Solution Approach 2:
The operation member is designed to be dynamically operable in multiple directions (first direction and second direction that intersect each other). This dynamic operation allows the operator to select and actuate different lock mechanisms by simply changing the direction of operation, making the system more responsive and less prone to operator error.
3Device complexity
If the first and second actuation members are displaced in the same direction, then the structure is simpler, but the operator cannot easily distinguish which lock mechanism will be actuated
Solution Approach 1:
The first actuation member is displaced in a first direction, and the second actuation member is displaced in a second direction that intersects the first direction. This orthogonal or intersecting arrangement provides clear tactile and visual feedback to the operator about which lock mechanism will be actuated, while maintaining relatively simple actuator structures that only move along their respective axes.
Data Source
AI summary
A stroller includes: a body frame including a wheel; a handle frame; a first lock mechanism configured to switch one movable portion of the body frame between a locked state and an unlocked state; a second lock mechanism configured to switch another movable portion of the body frame between a locked state and an unlocked state; and an operation member provided in the handle frame and configured to selectively actuate one of the first and second lock mechanisms. The operation member is configured to be operated in a first direction and a second direction different from the first direction. The first lock mechanism is switched to a locked state or an unlocked state by operating the operation member in the first direction. The second lock mechanism is switched to a locked state or an unlocked state by operating the operation member in the second direction.