Watch Case Mobile Horns Push-Button Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing watch cases with integrated horns face manufacturing and polishing challenges, and existing fastening mechanisms are fragile, require specialized tools, or are not adaptable to small wrists, making them difficult to disassemble and reassemble without tools.
Innovation Solution
A watch case design featuring a middle with blind holes, mobile horns with through-holes, and elastic elements that allow for easy assembly and disassembly using a push-button mechanism, eliminating the need for voluminous horns or middles, and allowing for stable fastening without modifying bar lengths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If horns are integrated into the middle by stamping, then manufacturing is simplified, but polishing and manufacturing difficulty increase
Solution Approach 1:
The watch case is divided into separate components: the middle and the horns are manufactured as distinct parts and then assembled together. This segmentation allows each component to be manufactured and polished independently, resolving the contradiction between manufacturing simplicity and polishing difficulty.
2Reliability
If traditional spring bar insertion is used, then bracelet fastening is achieved, but the process is fragile and delicate
Solution Approach 1:
The horn assembly incorporates mobile horns that can dynamically adjust their position. The horns can be pushed back to widen the lug distance for easy bracelet insertion, then return to their original position to secure the bracelet. This dynamic mechanism transforms the fragile static insertion process into a reliable and easy operation.
3Adaptability or versatility
If removable horns are used, then bracelet exchange is facilitated, but assembly and disassembly become complex
Solution Approach 1:
The fastening function is extracted from the middle and placed in the mobile horns. The horns can be independently removed from the middle by pushing them back, allowing bracelet exchange without complex disassembly procedures. This extraction simplifies the overall assembly while maintaining versatility.
4Reliability
If connecting parts are added to horns, then stable fastening is achieved, but case diameter increases
Solution Approach 1:
The connecting parts are nested within the horn structure itself rather than being added as external components. The horns are designed with integrated connecting elements that fit within the existing case geometry, achieving stable fastening without increasing the overall case diameter.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables easy insertion and extraction of bracelet strands without tools, stable fastening, and adaptability to small wrists by using a push-button mechanism that widens the lug distance, facilitating quick bracelet changes and reducing assembly complexity.
Implementation Method 1
a first elastic element (31) exerting a force on the horn (30) that tends to push it back into a position with a widened lug distance
Implementation Method 2
a second elastic element (52) exerting a force on the push-button (5) to push it back into the locked position
Data Source
AI summary
Watch case (1) having a middle (2) provided with a blind hole (20); a first mobile horn (3) for fastening a strand of a bracelet, and provided with a through-hole (33); a first elastic element (31) exerting a force on the horn (3) that tends to push it back into a position with a widened lug distance (d); a push-button (5) traversing said through-hole (33) and engaged in the blind hole (20) in the middle, arranged so as to be able to slide between a locked position, in which the push-button (5) blocks the displacement of the horn (3), and a released position in which the displacement of the horn (3) into pushed-back position is possible, a second elastic element (52) exerting a force on the push-button (5) to push it hack into the locked position.