Wristlet Adjustment Link With Cover-Mounted Actuation
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Solution Overview
Problem
Existing wristlet clasps require manual manipulation to adjust length, which can be inconvenient and not esthetically pleasing, and often necessitate removing the watch from the wrist for adjustment.
Innovation Solution
A device for adjusting the length of a wristlet that incorporates an adjusting link element movable in a longitudinal direction, actuated by an actuating device on the cover, utilizing a first kinematic connection to drive the adjustment without requiring manual manipulation or watch removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual manipulation is required to adjust wristlet length, then the adjustment mechanism can be simple, but the ease of operation deteriorates and aesthetics worsen
Solution Approach 1:
The wristlet adjustment mechanism automatically detects when the clasp is opened and initiates the length adjustment process without requiring manual manipulation. The movable element is automatically positioned and the adjustment is executed autonomously, allowing users to adjust wristlet length simply by opening and closing the clasp.
Solution Approach 2:
The patent replaces traditional manual mechanical adjustment mechanisms with an automated system that uses sensors and actuators to detect clasp opening/closing events and automatically position the movable element, eliminating the need for manual manipulation while maintaining mechanical reliability.
2Device complexity
If manual manipulation is required for adjustment, then the device structure can be simple, but the ease of operation deteriorates and time consumption increases
Solution Approach 1:
The system performs preliminary detection of clasp opening/closing events and automatically initiates the adjustment sequence in advance, eliminating the need for users to spend time manually manipulating adjustment mechanisms. The movable element is pre-positioned and the adjustment is executed automatically, reducing adjustment time to minimal clasp operations.
3Ease of operation
If the watch must be removed from the wrist for adjustment, then the adjustment can be performed with full access, but the ease of operation deteriorates and productivity worsens
Solution Approach 1:
The adjustment mechanism is designed to be fully autonomous and can be operated while the watch remains on the wrist. The system detects clasp opening/closing events and automatically executes length adjustment without requiring the user to remove the watch, maintaining continuous usability and improving productivity.
4Ease of manufacture
If traditional adjustment mechanisms are used, then manufacturing can be simple, but aesthetics and ease of operation worsen
Solution Approach 1:
The automated adjustment components are nested within the existing clasp structure, with sensors and actuators integrated into the folded state of the clasp. This nesting approach maintains the external aesthetic appearance of the wristlet while incorporating advanced adjustment technology, allowing simple manufacturing of the overall structure with enhanced internal components.
Data Source
AI summary
A device for adjusting the length of a wristlet includes: a cover (10); a link element (40) designed to be connected to a wristlet strand (9) and mounted movable relative to the cover (10) in the longitudinal direction in which extends a wristlet strand to be connected to the adjusting link element, such that this displacement of the adjusting link element (40) relative to the cover (10) enables lengthening or shortening the length of a wristlet strand; an actuating device (30) arranged on the cover (10) movable relative to the cover in at least the longitudinal direction; and a kinematic connection connecting the actuating device (30) and the adjusting link element (40), such that the actuation of the actuating device (30) in at least the longitudinal direction relative to the cover (10) can bring about the longitudinal displacement of the adjusting link element (40) relative to the cover (10).