Telescopic Crank Handle Drill Bit Attachment for Overhead Devices

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Solution Overview

Problem

There is a need for an extension handle that can efficiently turn a crank coupler on overhead retractable devices such as awnings, window blinds, or skylights, and a drill attachment that allows a rotary tool to perform this function, with the ability to adjust height using an extendable rod.

Innovation Solution

A telescopic crank handle drill bit attachment comprising a hook, an extendable rod with multiple telescopically nested or individually removable rod sections, and a drill attachment that can couple with a rotary tool to rotate the crank coupler in various directions, allowing for height adjustment and easy assembly/disassembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a rigid fixed-length handle is used to turn the crank coupler, then the structure is simple and strong, but it cannot adapt to different heights and locations of overhead retractable devices

Engineering Contradiction:

Improveheight adjustment capabilityVSAvoidstructure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The handle is divided into multiple telescopic sections that can slide relative to each other, allowing the overall length to be adjusted. Each section contains locking mechanisms that engage with corresponding features on adjacent sections to maintain structural integrity at various extended lengths.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The handle transitions from a fixed rigid structure to a dynamically adjustable structure. The telescopic sections can be extended or retracted based on the specific height requirements, and the locking mechanisms provide dynamic stabilization at selected positions.

Inventive Principle:

Principle #15Dynamics

2Productivity

If manual operation of the crank coupler is used, then no special tools are needed, but it requires significant manual effort and time for overhead devices

Engineering Contradiction:

Improveoperational efficiencyVSAvoidmanual effort required

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

A drill attachment serves as an intermediary device that connects the rotary tool to the crank coupler. The attachment includes a drill bit that engages with the crank mechanism, translating rotational motion from the power tool into the mechanical action needed to operate the overhead device.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

Manual mechanical operation of the crank coupler is replaced by a powered rotary system. The drill attachment converts the rotational output of an electric or cordless drill into the mechanical motion required to turn the crank, significantly reducing manual effort and increasing operational speed.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If a telescopic handle with multiple sections is used, then height adjustability is improved, but the risk of section separation or instability increases

Engineering Contradiction:

Improveheight adjustment capabilityVSAvoidstructural stability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The telescopic handle employs nested sections where smaller diameter sections are inserted within larger diameter sections. This nested arrangement provides natural alignment and support, reducing the risk of misalignment or separation while maintaining compact storage when retracted.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The locking mechanisms are designed to engage before full extension is reached, providing preemptive stabilization. The locking features include detents, springs, or friction-based elements that secure the telescopic sections together prior to any potential instability or separation.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS11279007B1Telescopic crank handle drill bit attachment

Publication Date: 2022.03.22 STOLL WILLIAM

AI summary

The telescopic crank handle drill bit attachment comprises a hook, an extendable rod, and a drill attachment. The telescopic crank handle drill bit attachment may couple to a crank coupler of an overhead retractable device. The telescopic crank handle drill bit attachment may rotate the crank coupler when the telescopic crank handle drill bit attachment is turned using a rotary tool. As non-limiting examples, the overhead retractable device may be an awning, a window blind, or a skylight. The telescopic crank handle drill bit attachment may rotate the crank coupler in a first rotational direction to move the overhead retractable device in a first operational direction. The telescopic crank handle drill bit attachment may rotate the crank coupler in a second rotational direction to move the overhead retractable device in a second operational direction.