Robot Exterior Assembly Using Plate Fixing Members

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Solution Overview

Problem

The assembly efficiency of the exterior to the body in existing robots is low due to the use of screws for fixation, which complicates the assembly process.

Innovation Solution

The use of plate-shaped members with specific protrusions and notches that engage with the body's protrusions, allowing for precise alignment and fixation without the need for specialized tools, combined with a simplified manufacturing process using polyamide 6 (PA6) for the members.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If screws are used for fixation of the exterior to the body, then secure fixation is achieved, but assembly efficiency deteriorates due to complicated assembly process

Engineering Contradiction:
Improvefixation securityVSAvoidassembly efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent extracts and eliminates the screw fixation mechanism from the assembly process. Instead of using screws, the invention employs a snap-fit engagement system where the exterior directly engages with the body through complementary geometric features (protrusions and recesses), removing the need for fastening tools and complex assembly steps while maintaining secure fixation

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the mechanical screw-threaded fixation system with a geometric interlocking system. The exterior includes protrusions that engage with corresponding recesses in the body, creating a secure mechanical connection through shape complementarity rather than threaded fastening, thereby simplifying the assembly process

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If plate-shaped members with protrusions and notches are used for engagement, then assembly efficiency is improved, but device complexity increases

Engineering Contradiction:
Improveassembly efficiencyVSAvoidstructure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The plate-shaped members serve multiple functions simultaneously: they provide structural support, enable precise alignment through geometric features, facilitate easy assembly via snap-fit engagement, and ensure secure fixation. This multi-functionality reduces the need for separate alignment features and fastening mechanisms, ultimately simplifying the overall device structure

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The plate-shaped members are pre-formed with specific protrusions and notches during manufacturing that automatically guide and align the exterior with the body during assembly. This preliminary preparation of alignment features eliminates the need for complex adjustment procedures or additional alignment components during the assembly process

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20260077477A1Robot and robot manufacturing method
Publication Date: 2026.03.19 CASIO COMPUTER CO LTD
  • US20260077477A1 patent drawing
  • US20260077477A1 patent drawing
  • US20260077477A1 patent drawing

AI summary

A robot includes an exterior, a body, and a plate-shaped member (fixing member). The body is covered by the exterior and is provided with a screw hole (attachment receiver), a first protrusion (engager), and a second protrusion (engager). The plate-shaped member is fixed to the inner surface of the exterior, and includes a through-hole (attacher) disposed at a position where the screw hole (attachment receiver), a hole (engagement receiver) with which a first protrusion is engaged, and a notch (engagement receiver) with which a second protrusion is engaged. Engagement of the first protrusion and the second protrusion with a hole and a notch positions the plate-shaped member relative to the body.