Hasp Seal Lock Assembly with Rotating Cover
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Solution Overview
Problem
Existing lock assemblies for securing truck storage compartment latches and security seals lack the ability to fully rotate, making it difficult to attach or detach security seals without obstructing the locking mechanism.
Innovation Solution
A unitary lock assembly with a base member and cover member that can rotate 180°, allowing the cover to be positioned out of the way when attaching or detaching security seals, and features tabs that require vertical lifting before rotation, enabling secure locking with a padlock.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cover member is fixed in position to secure the latch, then security is improved, but accessibility for attaching/detaching security seals deteriorates
Solution Approach 1:
The cover member is designed to rotate between a closed position (providing security) and an open position (providing accessibility). The hinge mechanism enables dynamic repositioning of the cover member, allowing it to transition between protecting the latch and allowing access for security seal attachment/detachment operations.
Solution Approach 2:
The cover member rotates about a hinge axis, moving from a two-dimensional closed barrier position to a three-dimensional open position. This rotational movement in another dimension allows the cover member to serve both protective and accessible functions without compromising either.
2Device complexity
If the cover member is made stationary to simplify structure, then device complexity is reduced, but functionality for seal attachment deteriorates
Solution Approach 1:
A simple hinge mechanism adds minimal complexity while enabling the cover member to rotate between closed and open positions. This dynamic element provides the necessary functionality for both securing the latch and allowing access for security seal operations.
Solution Approach 2:
The lock assembly is divided into separable components (base member, cover member, hinge) that can move independently. This segmentation allows the cover member to rotate for access while the base member remains stationary, providing functionality without excessive complexity.
3Reliability
If the cover member cannot rotate to maintain secure positioning, then locking reliability is improved, but ease of attaching/detaching security seals deteriorates
Solution Approach 1:
The cover member's rotational capability allows it to be positioned securely during locking (closed position) and then easily accessed during security seal attachment/detachment (open position). The hinge mechanism maintains locking reliability when closed while enabling easy operation when opened.
Solution Approach 2:
The cover member is pre-positioned in a closed secure state during locking operations. When security seal attachment/detachment is needed, the cover member can be rotated open in advance, allowing the user to access the latch area without compromising the secure locked state during normal operation.
Data Source
AI summary
An improved hasp seal lock assembly includes a base member that is attached via a hinge to a cover member. The cover member can be rotated approximately 180° from a fully “closed” position, which is when it overlays a latch and seal, to a fully “open” position. The base member and the cover member each have a plurality of apertures defined in adjacent side walls that allow the horizontal latch arm to extend through the assembly. The base member and the cover member also include a second plurality of cooperating apertures whereby the base member and the cover member may be locked together by use of a padlock. In the preferred embodiment, each cover side wall includes a tab and tab-receiving apertures are defined within the base member. The tabs require that the cover be lifted vertically prior to rotation of the cover member about the base member.