Manual Cutting Device Cover Stabilization via Rocker Linkage
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Solution Overview
Problem
Existing manual cutting devices for components, like milling discs, suffer from reduced stability and increased force requirements due to the pivotable cover opening with each forward movement, which compromises support and efficiency.
Innovation Solution
A hand-held device design where one outlet opening is closed by a cover interacting with the housing and guide carriage via a rocker, stabilizing the housing and reducing additional force needs during normal operation, while allowing the milling disc to be moved through two adjacent openings for enhanced working area access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cover is made pivotable to allow milling disc removal from the first outlet opening, then the milling disc can be easily removed and installed, but the housing stability is reduced and additional forces are required during operation
Solution Approach 1:
The cover is divided into two functional zones: a fixed portion that remains stationary to maintain housing stability, and a movable portion that pivots to enable milling disc removal. This segmentation allows the cover to simultaneously provide structural support and operational accessibility without requiring the entire cover to move.
2Ease of operation
If the cover is made pivotable for milling disc access, then the milling disc can be removed from the first outlet opening, but dust ejection through the second outlet opening is not prevented
Solution Approach 1:
The fixed portion of the cover is designed to pre-close the second outlet opening before the milling disc is inserted or removed through the first outlet opening. This preliminary action prevents dust generated during milling operations from being ejected through the second opening, while the movable portion still allows necessary access for disc changes.
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
The solution enhances the stability of the housing, reduces the need for additional forces during operation, and prevents dust ejection, providing a more efficient and stable cutting experience.
Implementation Method 1
one of the two outlet openings is closed by means of a cover, which rests on both the housing and the guide carriage via a rocker and interacts with these components
Implementation Method 2
an undercut is formed between the rocker and the guide carriage, because this additional contact surface increases the stabilization of the lid in the closed state
Data Source
Figure 1
Figure 2a
Figure 2b
AI summary
The device (1) has a drive motor (2), and a cutting disk (3) connected with the motor over a shaft (4). A housing (5) encloses the disk, and an elongated hole (7) is formed in the housing. The hole has guiding-sections, and a guide slide (10) is locked on a covering plate (6) of the housing in a pivotable manner. An outlet opening (13) turned towards one of the sections of the hole is closed by a cover (21) that is coupled to a compensator (22) supported in the plate. A side of the compensator turned away from the cover is passed through the slide and pressed into an inner area of the plate.