Side-Mounted Serving Robot Display for Narrow-Space Interaction

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Solution Overview

Problem

Existing serving robots face limitations in narrow spaces due to restricted rotational movement, making it difficult to interact with customers at tables with limited space, and require the entire robot to rotate within narrow passages.

Innovation Solution

A serving robot apparatus with a display that moves along the side surface of the main body, allowing interaction without rotating the main body, using a link member and driving devices to pivot the display towards the customer, and a guide rail for stable movement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the display is fixed to the robot, then the robot structure is simple, but the robot cannot interact with customers in narrow spaces without rotating the entire body

Engineering Contradiction:
ImproveInteraction capabilityVSAvoidDisplay mounting structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The display is separated from the main robot body and mounted on an independently movable carriage that travels along a guide rail. This segmentation allows the display to rotate and face customers independently without rotating the entire robot, solving the contradiction between interaction capability and structural complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The display mounting structure transitions from a fixed state to a dynamic state where the display can rotate along the guide rail. The driving mechanism enables the display to dynamically adjust its orientation to face customers, improving interaction capability while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the robot rotates within narrow passages, then the display can face the customer, but the robot may collide with tables or walls

Engineering Contradiction:
ImproveDisplay orientationVSAvoidCollision risk
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

By separating the display rotation function from the robot's main body movement, the system allows the display to orient toward customers independently. The robot body remains stationary or moves minimally along the aisle, while only the display carriage rotates, dramatically reducing collision risk with tables and walls.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The guide rail acts as an intermediary mechanism between the robot body and the display. It enables the display to rotate and face customers without requiring the robot body to rotate, thus eliminating collision risks in narrow passages while maintaining proper display orientation.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If the display moves along the side surface, then interaction is improved, but the mounting structure becomes more complex

Engineering Contradiction:
ImproveCustomer interactionVSAvoidMounting mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The guide rail and carriage mechanism serves multiple functions: it supports the display, enables rotation, guides movement along the side surface, and provides a stable mounting structure. This multi-functionality reduces the need for additional complex components, balancing interaction improvement with structural simplicity.

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

Data Source

PatentEP4173775B1Serving robot device
Publication Date: 2025.09.03 SAMSUNG ELECTRONICS CO LTD
  • EP4173775B1 patent drawingFigure 1
  • EP4173775B1 patent drawingFigure 2
  • EP4173775B1 patent drawingFigure 3

AI summary

A serving robot apparatus is disclosed. The serving robot apparatus includes a main body; a shelf horizontally supported by the main body; a first driving device configured to move the main body; a display comprising a front surface to display an image and a rear surface disposed to face a side surface of the main body; a link member comprising one end connected to the main body and other end connected to a rear surface of the display; and a second driving device configured to move the link member so that the display moves along the side surface of the main body.