Timepiece Strap Fixation Member for Rapid Attachment
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Solution Overview
Problem
Conventional portable apparatus cases require multiple operations for attachment, making the process time-consuming.
Innovation Solution
A portable apparatus case design featuring a strap mounting portion with a passage hole and a fixation member that allows for easy attachment by reducing the number of operations required, utilizing a strap with a slip portion to minimize friction and facilitate fastening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional portable apparatus case with buckle and loosely fitted member is used, then the strap can be securely fastened, but the attachment process requires four operations which is time-consuming
Solution Approach 1:
The patent combines the buckle and loosely fitted member into a single integrated fixation member. This fixation member has a locking portion that engages with a lock hole in one operation, eliminating the need for separate buckle engagement and strap tightening steps. The integration reduces the attachment process from four operations to two operations, directly addressing the time-consuming nature of conventional attachment methods.
Solution Approach 2:
The fixation member is designed with distinct functional segments: a locking portion for securing the strap, a locking hole receiving portion for engagement, and an integrated loosely fitted member portion. This segmentation allows each function to be performed through a simplified motion sequence, reducing the number of discrete operations required while maintaining secure fastening capability.
2Reliability
If multiple operations are required for attachment, then secure fastening can be achieved, but the complexity of the attachment process increases
Solution Approach 1:
By merging the buckle and loosely fitted member into a single fixation member with integrated locking and tightening functions, the patent reduces attachment process complexity from four separate operations to two. The locking portion engages with the lock hole while simultaneously providing the tightening function, maintaining secure fastening with fewer steps.
Solution Approach 2:
The fixation member is designed to perform its own locking and tightening functions through a single insertion motion. The locking portion automatically engages with the lock hole, and the integrated loosely fitted member portion provides the tightening action, eliminating the need for separate manual operations and reducing overall process complexity.
Data Source
AI summary
Disclosed are a portable apparatus case, a portable apparatus, and a timepiece allowing easy attachment. A timepiece case includes: a case main body, a first bow having a first passage hole and provided on the case main body, a strap one end portion of which is mounted to the first bow and the other end portion of which is passed through the first passage hole, and a fixation member provided on at least one of the first bow and a main portion of the strap extending from the first bow to the first passage hole and detachably connected to the strap.