Reversible Stroller Handle Locking Mechanism for Faster Switching
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Solution Overview
Problem
Conventional strollers with reversible handles require a long time to perform handle reversing operations, making the process inconvenient and slow.
Innovation Solution
A reversible mechanism featuring a release actuator linked with a sliding sleeve that disengages from anchoring portions, allowing the handle to be rotated quickly and locked at different positions, with a simple structural design for easy operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional sliding sleeve mechanism is used for handle reversing, then the handle can be released and rotated, but the reversing process takes a long time and is inconvenient to operate
Solution Approach 1:
The handle assembly is segmented into a handle body, a reversible member, and a separate locking mechanism. The locking mechanism includes a locking piece that can independently engage with locking grooves on the reversible member, allowing the handle to be locked at different positions (frontward, rearward, or intermediate) without requiring complete disassembly or complex sliding operations.
Solution Approach 2:
The locking function is extracted as a separate component (locking piece) from the handle body. The locking piece can be independently actuated to engage or disengage from the reversible member, separating the locking operation from the handle rotation operation. This allows for quicker reversing by simply actuating the locking piece rather than manipulating a complex sliding sleeve mechanism.
2Device complexity
If a simple locking mechanism is used, then the structure is simple, but the handle cannot be securely locked at different positions
Solution Approach 1:
The locking grooves are provided at specific locations on the reversible member corresponding to different handle positions (frontward, rearward, and intermediate positions). Each locking groove is strategically positioned to engage with the locking piece at the desired position, providing secure locking only where needed rather than requiring a complex mechanism to control the entire range of motion.
Solution Approach 2:
The locking piece has an asymmetric structure with a pressing portion that fits into specific locking grooves. The locking grooves are asymmetrically positioned on the reversible member to correspond with different operational positions. This asymmetric design ensures that the locking piece can only engage at predetermined positions, providing reliable locking while maintaining structural simplicity.
Data Source
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AI summary
A stroller includes a stroller frame, a reversible member (10) pivoted to the stroller frame, preferably with pivot shafts (40), and a reversible mechanism (30). The reversible mechanism (30) locks the reversible member (10) at different positions and includes a sliding sleeve (4), a release actuator (1) movably disposed on the reversible member (10) and linked with the sliding sleeve (4), preferably with a linking member disposed inside a straight tube (103) of the reversible member (10), and anchoring portions disposed on at least two different positions. The sliding sleeve (4) movably jackets the reversible member (10) and is selectively engaged with any anchoring portion. The sliding sleeve (4) can be selectively operated either by moving the release actuator (1) linked with the sliding sleeve (4) or by moving the sliding sleeve (4) itself for releasing the anchoring portion, so as to make the reversible member (10) rotatable to another position. Since the release actuator (1) is linked with the sliding sleeve (4), the release actuator (1) can be disposed at a position easy to operate, so that the handle (10) reversing operation can be performed conveniently and quickly. Furthermore, the reversible mechanism (30) has a simple structural design.