Sliding Cover Rotary Bezel for Guarded Operation Members
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Solution Overview
Problem
Existing rotary bezel structures do not allow the cover to guard or release operation members effectively, limiting their functionality and usability.
Innovation Solution
A variable device with a device body and a rotator that can move between guard and release positions, featuring a recess and restrictor mechanism to control the rotator's movement within a predetermined range, allowing operation members to be guarded or released as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the cover is made movable to guard and release operation members, then the functionality and usability are improved, but the device complexity increases
Solution Approach 1:
The cover is designed to be movable relative to the device body, transitioning between a guard position that covers operation members and a release position that exposes them. This dynamic configuration allows a single component to perform multiple functions (guarding and releasing) without adding separate mechanisms, thereby improving adaptability while controlling complexity.
Solution Approach 2:
The movable cover serves multiple functions: it acts as a protective guard when in the guard position and as a release mechanism when in the release position. This multi-functionality eliminates the need for separate guarding and releasing components, improving versatility while maintaining relatively simple device architecture.
2Ease of operation
If the cover is made movable between guard and release positions, then the usability is improved, but the reliability may worsen due to additional moving parts
Solution Approach 1:
A restrictor is introduced as an intermediary component that engages with the movable cover to define and limit its movement range. The restrictor ensures the cover moves only between the guard and release positions, preventing unintended movements or deviations, thereby maintaining reliability while preserving ease of operation.
Solution Approach 2:
The movement of the cover is constrained to specific positional parameters (guard position and release position) through the restrictor mechanism. By controlling the positional parameters of the cover, the system ensures reliable operation while maintaining user-friendly ease of operation between these defined states.
3Reliability
If the cover movement range is limited by a restrictor, then the reliability is improved, but the ease of operation may worsen
Solution Approach 1:
The restrictor is designed with specific local geometric features that engage with corresponding features on the cover. This localized engagement provides reliable positional constraint only at the critical guard and release positions, while allowing smooth movement between these positions, thus maintaining ease of operation within the defined reliable range.
Data Source
AI summary
Disclosed isa variable device including: a device body that includes an operation member on an outer circumference side; and a cover provided on one surface side of the device body and movable in a direction substantially parallel to the one surface of the device body to take a guard position in which the operation member is allowed to be guarded and a release position in which the operation member is released and allowed to be operated. One of the device body or the cover has a recess of a length corresponding to a movable amount of the cover along a movable direction of the cover, a restrictor placed in the recess is provided on the other of the device body or the cover, and the cover is movable with respect to the device body only within a range corresponding to the length of the recess.