Rotatable Collection Bag Assembly for Power Tool Clipping Capture
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Operators of handheld outdoor power devices like hedge trimmers and chainsaws face inefficiencies in collecting vegetation clippings, as existing solutions require significant manual effort and often fail to gather all clippings thoroughly, especially when changing cutting directions.
Innovation Solution
A collection assembly integrated with the power device, featuring a rigid frame and a rotatable bag assembly that creates a seal with a rotatable plate, allowing for efficient clipping collection regardless of cutting direction without the need for reattachment or tool-assisted emptying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a collection bucket is used to collect clippings, then clipping collection capability is improved, but the device requires manual reattachment when changing cutting directions and tools are needed to empty the collection
Solution Approach 1:
The collection bag is made rotatable relative to the rigid frame, allowing it to dynamically adjust its orientation. The rotatable plate with creating seal mechanism enables the bag to rotate while maintaining a sealed connection, eliminating the need for manual reattachment when changing cutting directions.
Solution Approach 2:
The collection assembly is designed to be self-emptying through gravity. When the bag rotates to the appropriate position, clippings automatically discharge without requiring external tools or manual intervention, making the system serve itself.
2Device complexity
If a fixed collection assembly is used, then structural simplicity is maintained, but the assembly cannot adapt to different cutting directions
Solution Approach 1:
The collection bag transitions from a fixed position to a rotatable position relative to the rigid frame. This dynamic capability allows the bag to adapt to different cutting directions while maintaining a relatively simple overall structure through the use of a rotatable plate mechanism.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A power device may include a blade assembly (20) that includes at least one cutting blade and a motor assembly (30) that powers the blade assembly (20). The power device may further include a collection assembly (70). The collection assembly (70) may include a rigid frame (100) defining an opening (180) and a bag assembly (110) operably coupled to the rigid frame (100) at the opening (180). The bag assembly (110) may include a rotatable plate (160) having an axis (200) extending substantially parallel to the blade assembly (20), and a bag (170), where the bag (170) creates a seal between the rigid frame (100) and the rotatable plate (160).