Miter Saw Extendable Support Extensions for Compact Transport

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing saws, such as miter and pull saws, face challenges in securely and stably supporting workpieces, especially longer ones, while also requiring compact designs for transport and avoiding the inconvenience of separate support blocks that can be easily misplaced.

Innovation Solution

The implementation of extendable support extensions with connecting webs that can be pushed into recesses on the lower table for compact transport, and extended for stable support, allowing for adjustable and separate use as a support block, enhancing stability and reducing the risk of misplaced components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If support blocks are attached to the lower table, then workpiece support stability is improved, but the saw becomes unwieldy and difficult to transport

Engineering Contradiction:
Improveworkpiece support stabilityVSAvoidtransportability
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The extension arm is designed to be movable rather than fixed, allowing it to be extended when needed for workpiece support and retracted for compact transport. The extension arm can be pushed into or pulled out from the lower table, providing dynamic adaptability between transport mode and work mode.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If support extensions are extended for long workpieces, then support capability is improved, but the saw size increases making transport difficult

Engineering Contradiction:
Improveworkpiece length accommodationVSAvoidsaw size
Core Design Contradiction:
Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The extension arm is nested within or integrated into the lower table structure when retracted, allowing it to be stored compactly during transport. The extension arm can be pushed into the lower table or pulled out as needed, effectively hiding the extended portion within the main body when not in use.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Adaptability or versatility

If separate support blocks are used, then support functionality is improved, but the risk of forgetting components increases

Engineering Contradiction:
Improvesupport functionalityVSAvoidcomponent availability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The extension arm is integrated with the lower table as a unified structure, eliminating the need for separate support blocks. The extension arm is either permanently attached or easily reattachable to the lower table, ensuring it is always available when needed and cannot be forgotten or misplaced.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP2875889B1Mitre and/or pull saw
Publication Date: 2020.11.11 METABOWERKE
  • EP2875889B1 patent drawingFigure 1~2

AI summary

The present invention relates to a miter saw (10) with a base table (12) for receiving and supporting a workpiece (W) to be machined, wherein the base table (12) comprises at least two support extensions (20) with a support section (26) that serves to receive and support the workpiece (W) to be machined, wherein each support extension (20) is movable back and forth between a retracted position and an extended position relative to the base table (12) and for this purpose has at least one connecting web (22) which, for connecting the support extension (20) to the base table (12), can be inserted at least partially into a corresponding recess on the base table (12) and, for releasing the connection, can be completely withdrawn from this recess, and at least one support leg (24) for stable support of the support extension (20).wherein the support extension (20) can be used as a separate support for the workpiece (W) to be machined in a position of the connecting bridge (22) detached from the lower table (12), and wherein the at least two support extensions (20) can be connected to each other in a state detached from the lower table (12).