Guide Rail-Supported Dust Receptacle for Handheld Power Tools

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Solution Overview

Problem

The existing collection receptacles for handheld power tools increase the weight and influence on the operation of the tool, potentially affecting the quality of the workpiece being processed, as they need to be manipulated separately and can hinder the operation of the handheld power tool.

Innovation Solution

A collection receptacle with a support means that allows it to be coupled to a handheld power tool, featuring a rigid shell with a flexible portion and a support bracket or wheels for stable positioning on a guide rail or base plate, reducing the influence on the tool's operation and enhancing handling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a collection receptacle is coupled to a handheld power tool, then workpiece particles can be collected, but the weight and influence on the operation of the tool increases

Engineering Contradiction:
Improveparticle collection capabilityVSAvoidweight of handheld power tool assembly
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The collection receptacle is designed as a separate, detachable component from the handheld power tool. The support means includes a detachable connection to the base plate, allowing the receptacle to be segmented from the tool during operation. This segmentation reduces the effective weight that the user must manipulate during cutting operations while maintaining particle collection capability when the receptacle is attached.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The support means utilizes the vertical dimension by extending downward from the base plate to contact the guide rail or workpiece surface. This dimensional extension allows the collection receptacle's weight to be supported in a different spatial dimension (vertically downward to the guide rail) rather than adding to the horizontal manipulation weight of the tool assembly.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Quantity of substance

If a collection receptacle with large volume is used, then more workpiece particles can be collected, but the handling and operation becomes more difficult

Engineering Contradiction:
Improvecollection volume capacityVSAvoidhandling ease of collection receptacle
Core Design Contradiction:
Quantity of substanceVSEase of operation

Solution Approach 1:

The support means acts as a counterbalancing mechanism by providing external support from the guide rail or workpiece surface. This support structure counteracts the weight of the large-volume collection receptacle, making it easier to handle and maneuver during operation. The receptacle can have large capacity without proportionally increasing the manipulation difficulty because the support means compensates for the additional weight.

Inventive Principle:
Principle #8Anti-weight (Counterweight)

3Device complexity

If the collection receptacle is supported on the handheld power tool, then the structure is simplified, but the weight of the tool increases

Engineering Contradiction:
Improvesupport structure complexityVSAvoidweight of handheld power tool
Core Design Contradiction:
Device complexityVSWeight of moving object

Solution Approach 1:

The support function is extracted from the handheld power tool itself and transferred to external elements (guide rail or workpiece surface). The support means includes elements that extend outward from the tool assembly to contact these external surfaces, thereby taking the weight-bearing function out of the tool's internal structure and distributing it to external support points.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentEP4454822A1Collection receptacle for workpiece particles, handheld power tool assembly, particle collection assembly, handheld power tool system, and use of a guide rail
Publication Date: 2024.10.30 FESTOOL GMBH
  • EP4454822A1 patent drawingFigure 1~2
  • EP4454822A1 patent drawingFigure 3~4
  • EP4454822A1 patent drawingFigure 5~6

AI summary

A collection receptacle (14) for collecting workpiece particles is described. The collection receptacle (14) comprises a receptacle shell (22) having an inlet port (26) and an outlet. Moreover, the collection receptacle (14) comprises a support means (140) arranged on the receptacle shell (22). The support means (140) is configured for supporting the receptacle shell (22) on a guide rail (16) and/or on a base plate of a handheld power tool (12). Furthermore, a handheld power tool assembly (18) is presented. The handheld power tool assembly (18) comprises a handheld power tool (12) and a collection receptacle (14). Additionally, a particle collection assembly (20) is shown. The particle collection assembly (20) comprises a guide rail (16) and a collection receptacle (14). The support means (140) of the collection receptacle (14) is supported on the guide rail (16). Also a handheld power tool system (10) is presented. The handheld power tool system (10) comprises a particle collection assembly (20) and a handheld power tool (12). Also, a use of a guide rail (16) for supporting a collection receptacle (14) is explained.