Retractable Torch Tail Cap Life Hammer Mechanism

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Solution Overview

Problem

Existing torch tail caps with integrated life hammers are structurally flawed as they expose the hammer, leading to potential personal injuries and damage during movement, and lack a convenient mechanism for retracting the hammer when not in use.

Innovation Solution

A torch tail cap design featuring a retractable ring and support rack system that allows the life hammer to be axially inserted and extended/retracted within the tail cap base, providing a secure and space-saving solution with a threaded connection and guide sleeves for stable operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the life hammer is directly fixed or exposed on the torch tail cap, then it is easily accessible and simple in structure, but it causes personal injuries and damage to objects during movement and placement

Engineering Contradiction:

ImproveAccessibility of life hammerVSAvoidPersonal injury and object damage

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The life hammer is nested within the tail cap base, specifically stored in the inner cavity formed by guide sleeves. The retractable ring mechanism allows the hammer to be extended from or retracted into this nested position, achieving safe storage while maintaining accessibility when needed.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The life hammer transitions from a static exposed position to a dynamic retractable position through the threaded connection mechanism. The retractable ring rotates to drive the support rack and life hammer axially, allowing the hammer to move between extended and retracted states within the tail cap base.

Inventive Principle:

Principle #15Dynamics

2Ease of operation

If the life hammer is exposed on the tail cap, then it is readily available for use, but it occupies excessive space and protrudes from the surface

Engineering Contradiction:

ImproveReadiness for useVSAvoidSpace occupation

Core Design Contradiction:

Ease of operationVSVolume of moving object

Solution Approach 1:

The life hammer is nested within the inner cavity of the tail cap base when not in use, significantly reducing the occupied volume. The hammer only extends outward when needed through the axial movement driven by the retractable ring mechanism.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The life hammer employs dynamic positioning through axial movement controlled by the retractable ring. When retracted, it occupies minimal space within the cavity; when extended, it is readily accessible for immediate use.

Inventive Principle:

Principle #15Dynamics

3Object-affected harmful factors

If a retractable mechanism is added to the tail cap, then the life hammer can be safely enclosed and space is saved, but the device complexity increases

Engineering Contradiction:

ImprovePersonal injury and object damageVSAvoidStructure complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The retractable mechanism is segmented into distinct functional components: the retractable ring for rotation and control, the support rack for axial movement guidance, and the threaded connection elements for force transmission. This segmentation allows each component to perform its specific function while maintaining overall structural clarity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The retractable ring serves multiple functions: it acts as the control interface for user operation, provides the threaded connection for force transmission, and guides the axial movement of the support rack and life hammer. This multi-functionality reduces the need for additional separate components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

4Object-affected harmful factors

If the life hammer is made retractable, then safety is improved by enclosing it, but the operation speed and convenience may be reduced

Engineering Contradiction:

ImprovePersonal injury and object damageVSAvoidOperation speed

Core Design Contradiction:

Object-affected harmful factorsVSSpeed

Solution Approach 1:

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The life hammer is pre-positioned within the inner cavity of the tail cap base, ready for quick deployment. The threaded connection and support rack mechanism are pre-configured to enable rapid axial extension when the retractable ring is rotated, minimizing the time required to access the hammer.

Inventive Principle:

Principle #10Preliminary action

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

The design enables quick and convenient operation of the life hammer, ensuring safety and efficient use while minimizing space, allowing the hammer to be safely enclosed when not needed, and facilitating its use in emergencies.

Implementation Method 1

the inner wall of the retractable ring is in a threaded connection with the outside wall of the support rack

Methodology Applied

Scientific EffectThreaded connection: Screw

Data Source

PatentUS10047948B1Torch tail cap and torch

Publication Date: 2018.08.14 NINGBO HONGFU ALUMINUM & PLASTIC ELECTRIC APPLIANCE CO LTD

AI summary

A torch tail cap includes a tail cap base which has a middle portion provided with an inner cavity, a life hammer which is axially inserted into the inner cavity of the tail cap base, and a retractable ring which is rotationally installed on the periphery of the tail cap base and is connected with the life hammer. The retractable ring drives the life hammer to extend out of or retract back into the inner cavity during rotation. The life hammer can be conveniently accommodated in the tail cap when not in use.