Rotating Body Stopper Track for Preset Angle Locking
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Solution Overview
Problem
Existing electronic devices with rotating parts, such as display screens and keyboards, lack a mechanism to securely lock at a certain angle, leading to accidental flipping during use, making operation inconvenient.
Innovation Solution
An electronic device design featuring a first body, a second body rotatably connected to the first body, a base with a track, and a fitting member that slides along the track to contact a stopper at a preset angle, restricting further rotation and preventing accidental flipping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If two relatively rotating parts are designed to allow free rotation, then the ease of operation is improved, but the stability of the structure deteriorates causing accidental flipping
Solution Approach 1:
The patent applies preliminary action by pre-positioning stoppers at specific angular locations on the rotating mechanism. These stoppers are prepared in advance to engage with the fitting member, automatically limiting the rotation range before accidental flipping can occur. The stoppers are strategically placed at angles that correspond to safe operating positions, ensuring the display screen cannot rotate beyond predetermined limits.
Solution Approach 2:
The fitting member serves as an intermediary element between the rotating display screen and the stoppers. It translates the rotational motion into linear motion along the track, enabling the stoppers to effectively engage and restrict rotation. This intermediary mechanism allows the system to maintain ease of rotation while incorporating stability constraints through the stopper-fitting member interaction.
2Stability of the object's composition
If a rotation limiting mechanism is added to prevent accidental flipping, then the stability is improved, but the device complexity increases
Solution Approach 1:
The rotation limiting mechanism is segmented into independent, modular components: multiple stoppers positioned at different angular locations, a track with distinct sections (first arc section, extension section, second arc section), and a fitting member. Each component performs a specific function, and they can be independently manufactured and assembled, reducing overall device complexity while achieving stable rotation limitation.
Solution Approach 2:
The mechanism uses dynamic interaction between the fitting member and stoppers rather than rigid constraints. The fitting member slides dynamically along the track and engages with stoppers only when needed, allowing free rotation within safe limits while automatically preventing rotation beyond those limits. This dynamic approach maintains simplicity by using motion-controlled limitation rather than permanent mechanical constraints.
Data Source
AI summary
An electronic device includes: a first body; a second body rotatably connected to the first body; a base fixed relative to the first body, a first track being formed on the base, and a first stopper being formed on the first track; and a fitting member, wherein, during rotation of the second body, the second body drives the fitting member to slide along the first track, when the second body rotates to a first preset angle, the fitting member contacts with the first stopper in a direction of rotation of the second body to restrict the rotation of the second body.