Unlocking device with pause function
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Solution Overview
Problem
Conventional baby safety seat unlocking mechanisms require simultaneous pressing of both releasing buttons with two hands, making it inconvenient for users carrying other items when detaching the seat from a stroller.
Innovation Solution
An unlocking device with a pause function that includes a housing, releasing member, first moving member, second moving member, and third moving member, allowing the user to press one releasing member first and then the other, or press both simultaneously before moving their hands away, enabling the user to lift the safety seat without continuous pressure on both buttons.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the conventional unlocking mechanism requires simultaneous pressing of both releasing buttons, then the locking reliability is improved, but the ease of operation deteriorates when the user carries other items
Solution Approach 1:
The patent applies preliminary action by introducing a pause function that temporarily maintains the unlocking state after one releasing member is pressed. This allows the user to press one button first (preliminary action), have the system pause in an intermediate state, and then complete the unlocking by pressing the second button or lifting the seat, without requiring simultaneous two-handed pressing.
Solution Approach 2:
The unlocking operation is segmented into distinct phases: pressing the first releasing member triggers a pause state where the locking member is partially disengaged but not fully reset, allowing sequential operation. This segmentation breaks the simultaneous pressing requirement into separate, manageable steps that can be performed with one hand.
2Productivity
If the releasing member is pressed to unlock, then the detachment function is achieved, but the user must maintain continuous pressure on both buttons simultaneously
Solution Approach 1:
The patent introduces dynamic behavior through the pause function that changes the system's response based on the timing and sequence of button presses. When one releasing member is pressed, the system dynamically transitions to a pause state where the locking member begins to disengage but remains held in an intermediate position, allowing the user to lift the seat or press the second button to complete the operation.
Solution Approach 2:
The pause function acts as an intermediary state between the locked and fully unlocked positions. The first moving member and second moving member work together to create this intermediate state, where the locking member is partially disengaged from the fixing rod but not fully reset, serving as a mediator that bridges the gap between initial button press and complete unlocking.
Data Source
AI summary
An unlocking device with a pause function comprises a first moving member having a first protruding portion, a second moving member having a second protruding portion, and a third moving member having a third end portion and a fourth end portion. The second moving member is disposed corresponding to the first moving member. The second protruding portion is disposed cooperated with the first protruding portion. The third end portion is connected to the second moving member. When the fourth end portion of the third moving member contacts a carry body, and a first end portion of a releasing member moves along a first direction towards the housing, the releasing member drives the first moving member to move in the first direction, so the second moving member holds the position of the releasing member by the second protruding portion and the first protruding portion.