Rotatable Drill Dust Collector for Corner Hole Positioning

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Solution Overview

Problem

Existing drill dust collectors face challenges when drilling in corner areas, as they hinder positioning due to contact with corner faces, are difficult to position without a center drill, and can contaminate the floor with mud and dust, especially when using wet-type drills.

Innovation Solution

A drill dust collector with a rotatable lid member and flexible contact seals, allowing the box to adjust its position relative to corner faces, and a partitioned design to separate suction and collection areas, preventing contamination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the box is positioned closer to the corner for drilling, then positioning accuracy is improved, but the peripheral side faces of the box contact with the upright corner faces which hinders positioning

Engineering Contradiction:
Improvepositioning accuracyVSAvoidpositioning ease
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The box is divided into a box body and a separate lid member with the opening. The lid member can be rotated relative to the box body, allowing the opening to be positioned independently while the box body maintains contact with corner faces for stable positioning.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The lid member is made rotatable relative to the box body, transforming a static structure into a dynamic one. This allows the opening to be adjusted to different positions while the box body remains stationary and properly positioned against corner faces.

Inventive Principle:
Principle #15Dynamics

2Device complexity

If the opening is fixed on the upper face of the box, then the structure is simple, but drills of various diameters cannot be properly accommodated

Engineering Contradiction:
Improvestructural simplicityVSAvoiddrill compatibility
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The lid member with the opening can be rotated to different angular positions relative to the box body. This dynamic adjustment allows the opening to be optimally positioned for different drill diameters and types, enhancing versatility while maintaining simple structure.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The rotatable lid member serves multiple functions: it accommodates different drill diameters, allows adjustment for various drilling positions, and maintains a simple overall structure. One component performs multiple adaptive functions.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Object-generated harmful factors

If the leading end portion of the drill is entirely covered with the box, then dust collection is effective, but the condition of the drill cannot be checked visually

Engineering Contradiction:
Improvedust collection efficiencyVSAvoiddrill condition visibility
Core Design Contradiction:
Object-generated harmful factorsVSDifficulty of detecting and measuring

Solution Approach 1:

The lid member acts as a flexible cover that can be rotated. When rotated to cover the opening, it provides effective dust collection. When rotated away, it allows visual inspection of the drill while maintaining the sealed enclosure for dust containment.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The lid member's rotatable design allows dynamic switching between two states: covered (for dust collection) and open (for visual inspection). This resolves the contradiction by making the system adaptable to different operational needs.

Inventive Principle:
Principle #15Dynamics

4Adaptability or versatility

If a core drill having no center drill is used, then drilling flexibility is improved, but positioning becomes more difficult

Engineering Contradiction:
Improvedrilling flexibilityVSAvoidpositioning accuracy
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The box body with contact members is designed to be positioned against corner faces before drilling begins. This preliminary positioning action establishes a stable reference frame that compensates for the lack of center drill positioning, enabling accurate hole placement.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The box body acts as an intermediary positioning device between the operator and the workpiece. It provides mechanical reference surfaces that facilitate accurate positioning without requiring a center drill, thus enabling the use of core drills while maintaining positioning accuracy.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Enables stable and efficient dust collection over a wide range, allowing accurate positioning near and away from corners without floor contamination, and facilitates the use of various drill diameters.

Implementation Method 1

a suction port for making the inner pressure of the box negative is formed in the box, being connected to the leading end of a suction hose the proximal end of which is connected to an suction apparatus

Methodology Applied
Scientific EffectNegative pressure: Pressure Drop

Data Source

PatentUS20090172911A1Drill Dust Collector
Publication Date: 2009.07.09 MIYANAGA KK
  • US20090172911A1 patent drawing
  • US20090172911A1 patent drawing
  • US20090172911A1 patent drawing

AI summary

Object: A drill dust collector is provided that is capable of drilling holes in an area ranging from a position near a corner to a position distant from the corner and that can be positioned with a side face in contact with an upright face such as a wall during drilling.Means for Solving: The drill dust collector has (i) an opening 2C provided in the upper face of a box having an open lower face 1C, for receiving a drill inserted therein; (ii) a suction port 1U connected to the leading end of a suction hose 3 connected to an suction apparatus; and (iii) a contact member 1A of high flexibility formed so as to extend around the lower face of the box. The box has a lid member 3 composed of the opening 2C and its peripheral part, and a box body 1. The lid member 3 is placed so as to be rotatable relative to the box body 1 and the opening 2C is located at a position the center of which is shifted from the center of rotation of the lid member 3 relative to the box body 1.