Movable Delimiting Element for High-Speed Working Region Braking

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Solution Overview

Problem

Automatic movement machines often overshoot their working regions due to malfunctions or manual control, leading to potential injuries and damage, especially at high speeds and accelerations, where conventional stationary protection devices fail to stop them effectively in time.

Innovation Solution

A delimiting device with a movable element that anticipates and gently brakes the automatic movement machine's element by moving in sync or slower than it, ensuring contact before boundary overshoot, and can extend beyond the working region to prevent collisions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If stationary protection devices (security fences, security gates) are used to delimit the working region, then injury prevention is achieved, but the automatic movement machine cannot be stopped at an early stage before overshooting the boundary

Engineering Contradiction:
Improveinjury preventionVSAvoidresponse time to prevent overshooting
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The delimiting device employs a movable delimiting element that can dynamically adjust its position to track the movement of the movable element. This dynamic configuration allows the delimiting element to move in sync with or slower than the movable element, enabling early detection and gentle braking before the boundary is overshot, thus resolving the contradiction between reliable injury prevention and timely response.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The delimiting element is positioned to anticipate the movement of the movable element by moving in sync or slower than it. This preliminary action allows the system to prepare for potential boundary overshooting by maintaining a proactive position, enabling early intervention and gentle braking before the actual boundary is reached, thereby improving response time while maintaining reliability.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If the automatic movement machine operates at high speeds and accelerations, then productivity is improved, but the machine overshoots the working region boundary more easily

Engineering Contradiction:
Improveoperating speedVSAvoidboundary accuracy
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The delimiting device provides continuous feedback about the position of the movable element by tracking its movement. The movement apparatus receives this feedback and adjusts the position of the delimiting element accordingly, moving it in sync with or slower than the movable element. This feedback mechanism enables the system to maintain boundary accuracy even during high-speed operations by continuously monitoring and responding to the movable element's position.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The delimiting element's ability to dynamically adjust its position in response to the movable element's high-speed movements allows the system to maintain precision during high-speed operation. By moving the delimiting element in sync with or slower than the movable element, the system can track and respond to rapid changes in position, preventing boundary overshooting while maintaining high productivity.

Inventive Principle:
Principle #15Dynamics

3Reliability

If stationary protection devices are used, then the working region is delimited, but the movable element collides at high speed causing considerable damage

Engineering Contradiction:
Improveboundary delimitationVSAvoidcollision resistance
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The delimiting element moves in sync with or slower than the movable element, creating a dynamic safety system that reduces relative velocity at the moment of contact. This dynamic approach transforms the rigid, high-impact collision scenario into a controlled, low-velocity interaction, significantly reducing collision damage while maintaining reliable boundary delimitation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system prepares for potential contact by positioning the delimiting element to intercept the movable element before it reaches the boundary. By moving the delimiting element in advance and maintaining a slower speed profile, the system effectively cushions the potential impact, reducing the kinetic energy of collision and preventing considerable damage while maintaining boundary delimitation integrity.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS11376737B2Arrangement comprising an automatic movement machine and a delimiting device, delimiting device for the arrangement, and method for operating the arrangement
Publication Date: 2022.07.05 SIEMENS AG
  • US11376737B2 patent drawing
  • US11376737B2 patent drawing

AI summary

A method, a delimiting device and an arrangement that includes an automatic movement machine that has at least one movable element, wherein the arrangement includes a delimiting device for delimiting a working region of the automatic movement machine, where the delimiting device includes at least one delimiting element via which it is possible to prevent the at least one element from overshooting at least one boundary of the working region, and the delimiting device also includes a movement apparatus that is configured to move the at least one delimiting element depending on at least one movement of the at least one movable element such that the at least one delimiting element prevents the at least one movable element from overshooting the at least one boundary.