Adjustable Limb Protector Anti-Pressing Mechanism
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Solution Overview
Problem
Conventional adjustable limb protective assemblies can unintentionally change length due to accidental pressing of buttons, leading to unstable protection of injured limbs.
Innovation Solution
The assembly features anti-pressing blocks and operating elements with secure mounts and stems that prevent unintended rotation, ensuring the length and angle adjustments are fixed once set, using holding bases and belts for secure positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If pressing buttons are used for adjusting the position of covering frames, then the assembly can be adjusted to fit different users' limbs, but accidental pressing may unintentionally change the length and compromise protection stability
Solution Approach 1:
The patent applies preliminary anti-action by designing a button cover that must be deliberately removed before the adjusting slot can be accessed. This preliminary protective action prevents accidental pressing while allowing intentional adjustment when needed. The button cover acts as a pre-established barrier against unintended operation.
Solution Approach 2:
The button cover serves as an intermediary element between the user and the pressing button. It mediates the interaction by requiring deliberate removal to access the button, thus preventing accidental pressing while maintaining adjustability when intentionally needed.
2Ease of operation
If the adjusting slot is open and accessible, then the covering frame can be easily repositioned, but the position cannot be securely fixed against unintended changes
Solution Approach 1:
The patent applies dynamics by creating a system that transitions between two states: locked (when button cover is on) and adjustable (when button cover is removed). The adjusting slot allows dynamic repositioning when accessed, while the button cover provides static protection when in place, achieving both flexibility and stability.
Solution Approach 2:
The button cover must be removed as a preliminary action before any adjustment can occur. This preliminary step ensures that repositioning only happens when intentionally initiated, preventing accidental changes while maintaining the ability to adjust when needed.
3Productivity
If the pressing button is always accessible, then adjustments can be made quickly, but unintended pressing may occur during normal use
Solution Approach 1:
The button cover provides preliminary protection against accidental pressing while maintaining quick access for intentional adjustments. When the cover is removed, adjustments can be made rapidly; when attached, accidental pressing is prevented. This creates a balance between speed and safety.
Data Source
AI summary
An adjustable limb protective assembly has a main body, a first covering frame and a second covering frame. The main body has a first extending arm, a second extending arm, two holding bases, two operating elements and a jointing connector. Each extending arm has a connecting board. The holding bases are respectively connected to the extending arms adjacent the connecting boards. The operating elements are respectively and securely mounted on the connecting boards, and each one of the operating elements has an operating mount and an operating stem. The jointing connector is connected to the extending arms. The first covering frame is connected to the first extending arm and has a first supporting arm and a first covering base. The second covering frame is connected to the second extending arm and has a second supporting arm and a second covering base.