Rotary Adjustable Hook Structure for Variable Wall Widths

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Solution Overview

Problem

Conventional adjustable hooks face limitations in size adjustment, insecurity when not tightly fixed, larger size occupation, and user safety due to piercing hazards.

Innovation Solution

A rotary adjusting hook design featuring a hooking member, first and second retainers, and a positioning set with an axial connecting member and adjusting member, allowing for adjustable distances and a rotating mechanism to reduce size and prevent user piercing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the hook is designed with fixed structure, then the manufacturing is simple, but the size cannot be adjusted to accommodate different wall widths

Engineering Contradiction:

Improveadjustability of hook sizeVSAvoidstructural complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The hook is divided into multiple segments: a hooking member with first and second loops, a first retainer with a loop, and a second retainer with a loop. These segments can be independently positioned along the axial connecting member to achieve different hook sizes and configurations, allowing adaptation to various wall widths while maintaining a relatively simple overall structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The hook transitions from a fixed structure to a dynamically adjustable structure. The axial connecting member allows the loops to be positioned at different locations, enabling the hook to adapt its configuration based on the specific wall width requirement, thus providing versatility without excessive complexity.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If the adjustable hook uses retaining pieces and bolts, then the position can be adjusted, but the hooking member and retainers displace forward easily when not tightly fixed

Engineering Contradiction:

Improveposition adjustabilityVSAvoidfixing security

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The design removes the traditional bolt and nut components from the adjustable hook structure. Instead, the axial connecting member with multiple loops provides inherent positioning through the engagement of the loops themselves, eliminating the need for separate fastening elements and reducing the risk of displacement when not tightly fixed.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The loops are nested along the axial connecting member, with each loop capable of engaging with the member at different positions. This nested arrangement provides inherent stability and prevents forward displacement, as the loops are constrained by the structure itself rather than relying on external fasteners.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Adaptability or versatility

If the hook is designed with extended lateral segments, then the adjusting range is increased, but the hook occupies more storage space

Engineering Contradiction:

Improveadjusting rangeVSAvoidstorage size

Core Design Contradiction:

Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The adjustment mechanism utilizes the axial dimension of the connecting member rather than extending the lateral segments. By positioning loops at different locations along the axial direction, the hook achieves a wide adjusting range without increasing its lateral footprint, thus reducing storage space requirements while maintaining versatility.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

4Strength

If the hook uses sharp lateral segments for structure, then the structural integrity is maintained, but the lateral segments can pierce the user causing danger

Engineering Contradiction:

Improvestructural integrityVSAvoiduser safety

Core Design Contradiction:

StrengthVSObject-affected harmful factors

Solution Approach 1:

The design converts the potentially harmful sharp lateral segments into safe loop structures. The loops maintain the necessary structural integrity for hook functionality while presenting a rounded, non-piercing surface that eliminates the safety hazard. The axial connecting member with loops provides both strength and user safety simultaneously.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

Data Source

PatentUS8360381B2Rotary adjusting hook

Publication Date: 2013.01.29 LEE TSUNG YING

AI summary

A rotary adjusting hook contains a hooking member including a circular first loop fitted on one end thereof, a first vertical segment extending downward from another end thereof, and a hook segment extending outward from the first vertical segment; a first retainer including a circular second loop fitted on one end thereof, a second vertical segment extending downward from another end thereof, a second retainer including a circular third loop fitted on one end thereof, and a third vertical segment extending downward from another end thereof; a positioning set including an axial connecting member and an adjusting member, and the axial connecting member including a first coupling segment to connect with an adjusting member; the adjusting member including a second coupling segment to connect with the first coupling segment of the axial connecting member.