Robot Hand Waterproof Mechanism with Segmented Fixing
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Solution Overview
Problem
Existing waterproof mechanisms for robot hands require complex removal processes and are not versatile, as they need to be specifically designed for each claw member shape, limiting replacement workability and adaptability.
Innovation Solution
A waterproof mechanism comprising a cover that encases the robot hand's main body and driving portion, with an extension member connecting the driving portion to the claw member, using a resin cover for visibility and a rubber cover for flexibility, allowing easy attachment and detachment of the claw member without removing the cover, enhancing replacement workability and versatility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cover is used to waterproof the robot hand, then waterproofing performance is improved, but replacement workability of claw members deteriorates because the cover must be removed for replacement
Solution Approach 1:
The fixing members are segmented into two types: a first fixing member (screw) that is covered by the waterproof cover for securing the extension member to the driving portion, and a second fixing member (retaining ring) that is exposed for detachably fixing the claw member to the extension member. This segmentation allows the cover to remain in place while enabling claw member replacement through the exposed second fixing member.
Solution Approach 2:
An extension member is introduced as an intermediary component between the driving portion and the claw member. This extension member allows the claw member to be fixed and replaced independently through the exposed second fixing member, while the covered first fixing member maintains the waterproof seal for the driving portion.
2Reliability
If a cover is specifically designed for each claw member shape, then waterproofing performance is improved, but versatility deteriorates
Solution Approach 1:
The waterproof cover is designed with a universal opening that can accommodate extension members of various shapes. The cover structure itself remains unchanged, but it can adapt to different claw member configurations through the standardized opening design, allowing a single cover type to serve multiple functions with different claw member shapes.
Solution Approach 2:
The specific adaptation to different claw member shapes is extracted from the cover design and transferred to the extension member design. The cover maintains a standardized opening, while the extension member varies in shape to match different claw members, allowing the cover to remain universal while still accommodating shape variations.
Data Source
AI summary
A waterproof mechanism, for a robot hand, includes a cover covering at least a part of a main body portion of the robot hand, covering a driving portion, and including an opening; and an extension member protruding from the opening, wherein the driving portion is held so as to be driven with respect to the main body portion, a proximal end portion of the extension member is fixed to the driving portion, a distal end portion of the extension member is fixed to a claw member of the robot hand, a first fixing member that fixes the extension member and the driving portion to each other is covered by the cover, and a second fixing member that fixes the extension member and the claw member to each other is detachably exposed from the cover.