Screw Sealing Disk Axial Positioning for Magazine Storage
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Solution Overview
Problem
Existing screws with sealing disk arrangements are not suitable for storage in magazines due to their design, which prevents efficient stacking and storage.
Innovation Solution
The sealing disk arrangement is positioned along the screw axis at a distance greater than the head's underside, allowing the screw to fit within an elongated magazine with a specific wall thickness, and a cylindrical collar is added to prevent damage during screwing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the sealing disk arrangement is positioned close to the head underside, then the screw structure is compact, but the screw cannot be stored in elongated magazines with standard wall thickness
Solution Approach 1:
The patent positions the sealing disk arrangement at a distance from the head underside along the screw axis, creating axial space that enables the screw to fit within elongated magazine receptacles. This dimensional adjustment transforms the screw's storage profile to be compatible with standard magazine wall thicknesses while preserving the sealing function.
2Ease of operation
If the sealing disk arrangement is positioned at a distance from the head, then the screw can be stored in elongated magazines, but the sealing disk may be damaged or pressed out during screwing
Solution Approach 1:
The patent introduces a collar as an intermediary component between the head and the sealing disk arrangement. This collar acts as a protective mediator that prevents direct contact and potential damage between the sealing disk and the workpiece or substrate during the screwing process, while allowing the sealing disk to remain positioned at the required distance for magazine storage compatibility.
3Reliability
If a collar is added to the shank, then the sealing disk is protected from damage, but the screw manufacturing complexity increases
Solution Approach 1:
The patent merges the collar with the shank to form an integrated component structure. By combining these elements into a unified screw body, the design reduces the number of separate parts and assembly steps, thereby minimizing manufacturing complexity while still providing the necessary protection for the sealing disk arrangement.
Data Source
Figure 1~3
AI summary
The magazine has a screw (10) accommodated in a receiving channel. A shaft (12) defines a screw axis (S) and carries threads (15) in regions. A head (11) is arranged at an end of the shaft. A sealing disk arrangement (20) is placed on the shaft and includes a sealing disk (21) and a reinforcement disk (22). The disk arrangement is placed at a distance (A) from a lower side (16) of the head along the screw axis. The distance is larger than a thickness of a wall of the channel and a thickness (U) of the reinforcement disk and smaller than a cumulative thickness (G) of the disk arrangement.