Transport Hook With Spring-Loaded Safety Catch
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Solution Overview
Problem
Existing technologies face challenges in safely lifting and moving loads that are only accessible from above, such as floor elements or machines, without being able to pick them up from the side or underside.
Innovation Solution
A transport hook with a safety device that includes a lever section, a hook leg, and a holding mechanism, which can be secured in a hole of the load using a safety rod and handle, allowing for safe lifting and movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a simple hook is used to lift loads accessible only from above, then the lifting operation is simplified, but the risk of accidental release increases
Solution Approach 1:
The hook is pre-loaded with a spring mechanism that automatically engages the safety catch when the hook is inserted into the load hole. This preliminary action ensures security without requiring additional manual steps during the lifting operation.
Solution Approach 2:
The safety mechanism is self-activating through the spring-loaded design. When the hook engages with the load, the spring automatically pushes the safety catch into the locked position, and the mechanism self-releases when the load is set down, eliminating the need for manual intervention.
2Reliability
If a securing device is added to prevent accidental release, then reliability improves, but device complexity increases
Solution Approach 1:
The safety catch and spring mechanism are integrated directly into the hook body as a unified component. The safety catch is formed as part of the hook structure, and the spring is housed within the same component, eliminating the need for separate securing devices.
Solution Approach 2:
The spring-loaded safety mechanism serves multiple functions: it provides the locking action to prevent accidental release, it indicates when the hook is properly engaged, and it automatically releases when the load weight decreases. This multi-functionality reduces the need for additional components.
3Adaptability or versatility
If the hook opening is made wide to accommodate various loads, then adaptability improves, but the hook may inadvertently close on smaller objects
Solution Approach 1:
The safety catch acts as an intermediary mechanism between the hook opening and the load. It prevents the hook from closing on small objects by requiring the load to properly engage the hole, which then triggers the spring mechanism to secure the opening. This intermediary control eliminates the harmful effect of inadvertent closing.
Data Source
Figure 1
Figure 2~3
Figure 4a~4c
AI summary
The present invention relates to a transport hook for raising and moving a load, wherein the transport hook (1) comprises a lever portion (2) with a coupling element (4), by means of which the transport hook (1) can be connected to a lifting apparatus, and also comprises a hook limb (3), which, for the purposes of raising and moving the load (101), can engage in a hole (102) of the load (101). The hook limb (3) is connected to the lever portion (2) by means of an angled portion (14) such that an angle (α) of less than 90° forms between a line which extends from the coupling element (4) to a vertex (SP) of the angled portion (14) and a line which runs along the hook limb (3). The hook can grip a load through a small opening on an upwardly oriented surface and raise the load securely. The transport hook can be provided with different securing elements, which reliably prevent accidental release of the transport hook.