Clip-On Strap Assembly With Press-Actuated Snap Hooks
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Solution Overview
Problem
Existing wristwatch strap replacement methods require users to remove the watch from their hand, making the process inconvenient and time-consuming.
Innovation Solution
A clip-on strap assembly with a locking mechanism that includes movable members, elastic members, and snap hooks, allowing the strap to be easily installed or removed by pressing members without taking the watch off, enabling strap replacement without removing the watch from the user's hand.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional strap replacement method is used, then strap can be securely fastened, but user must remove watch from hand making process inconvenient and time-consuming
Solution Approach 1:
The strap replacement mechanism is segmented into independent components: a locking assembly with movable members, elastic members, and snap hooks that can operate independently from the watch body. This allows the strap to be changed while the watch remains on the user's hand, as the locking assembly can be actuated through the strap itself without requiring removal of the entire watch.
Solution Approach 2:
The locking assembly acts as an intermediary mechanism between the strap and the watch body. It includes elastic members that mediate the connection and release forces, allowing the strap to be quickly engaged or released through pressing members without requiring direct manual manipulation of the watch itself.
2Ease of operation
If traditional buckle attachment is used, then strap connection is simple, but strap removal requires taking watch off hand
Solution Approach 1:
The locking assembly employs movable members that can dynamically transition between locked and unlocked states. The elastic members provide dynamic restoring forces that automatically engage the snap hooks with the buckles when the movable members are in their relaxed state, and allow easy release when compressed by the pressing members.
Solution Approach 2:
The locking assembly is designed to be self-servicing through the elastic members that automatically engage the snap hooks with the buckles without requiring manual intervention. The system serves itself by using the elastic restoring force to secure the strap, and the pressing members provide a simple user interface to override this automatic engagement when strap removal is needed.
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
Facilitates quick and convenient strap replacement by allowing engagement and disengagement of snap hooks with buckles through the pressing members, eliminating the need to remove the watch from the user's hand.
Implementation Method 1
two elastic members, each of the two elastic members being disposed between one of the two movable members and the connecting portion
Data Source
AI summary
A clip-on strap assembly includes a watch strap with a groove and two mounting holes, a base disposed in the groove and including a midpoint connecting portion, two movable members movably on the base and located on opposite sides of the connecting portion, two snap hooks disposed on ends of the movable members, two elastic members disposed between the movable members and the connecting portion, and two pressing members disposed on the movable members and accommodated in the two mounting holes. The pressing members can bear against the elastic members. The snap hooks can engage with or be disengaged from the two buckles. The watch strap is clipped to or unclipped from the watch head merely by only pressing the two pressing members, facilitating the replacement of the watch strap.