Sheet-Metal Tool Bag Fastener for Quick Belt Attachment
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Solution Overview
Problem
Existing tool bag fasteners are difficult to quickly couple and decouple with waist belts, and they do not efficiently accommodate different belt sizes and types, leading to inefficiencies in use.
Innovation Solution
A fastener structure with a penetrating-fitting portion and guiding slots, combined with a snap-latching mechanism, allows for easy attachment and detachment of tool bags to waist belts, and adjustable fitting to accommodate various belt widths through a sheet metal forming technique.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a traditional fastener structure is used, then the tool bag can be attached to the band, but the fastening and unfastening process is time-consuming and requires removal of the band
Solution Approach 1:
The fastener is divided into separate components: a fastener body with a penetrating-fitting portion, a resilient portion, and a snap-latching portion. This segmentation allows the band to be inserted through the penetrating-fitting portion without removing the entire fastener, enabling quick attachment and detachment operations.
2Adaptability or versatility
If a fixed fastener structure is used, then the fastener can be manufactured with simple geometry, but it cannot accommodate bands of different sizes and types
Solution Approach 1:
The fastener incorporates a resilient portion that can elastically deform to accommodate bands of varying thicknesses and types. The snap-latching portion can be engaged or disengaged from the band, providing adjustable fastening states. This dynamic structure allows the same fastener to adapt to different band dimensions without requiring multiple specialized fasteners.
3Ease of operation
If the fastener structure is simplified, then manufacturing is easier, but the fastener cannot be quickly fitted to the band
Solution Approach 1:
The snap-latching portion automatically engages with the band when the band is inserted through the penetrating-fitting portion, without requiring manual adjustment or additional fastening steps. The resilient portion automatically returns to its original position after the band passes through, enabling the fastener to self-adjust and secure the band quickly and easily.
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 quick and efficient attachment and detachment of tool bags to waist belts, accommodating different belt sizes and types, enhancing user convenience and working efficiency.
Implementation Method 1
A resilient portion is disposed between the snap-latching portion and the fastener body and adapted to resiliently push and cause the snap-latching portion to abut against the downward-pressing tab
Implementation Method 2
The back of the fastener body extends and bends to form an n-shaped penetrating-fitting portion through a sheet metal forming technique
Data Source
AI summary
A tool bag structure having a fastener includes a fastener, fastener accessory, and tool bag. The back of the fastener extends and bends to form an n-shaped penetrating-fitting portion by sheet-metal forming technique. The top surface of the penetrating-fitting portion is parallel to or higher than the top surface of the fastener body. The penetrating-fitting portion has a free end that curves upward to form a pressing-through portion, allowing an enclosed penetrating-fitting slot to be formed between the penetrating-fitting portion and fastener body and adapted to contain a band penetrating-fitting. Each of two edges of the penetrating-fitting portion is concave to define a guiding slot. The fastener accessory is inserted into and fitted to an insertion hole disposed at the bottom of the fastener. A user presses the fastener to separate the fastener and fastener accessory quickly, allowing the fastener accessory and tool bag to be fitted together for containing tools.