Gravity-Driven Trapdoor for Water Slide Drop

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Solution Overview

Problem

Traditional trapdoor systems in water park slides require large amounts of energy to operate and can be dangerous due to the force exerted by springs or pistons, posing a risk if a rider becomes stuck.

Innovation Solution

The system utilizes gravity to move a trapdoor between closed and open positions, reducing energy requirements and incorporating a control device to compensate for frictional losses, thereby minimizing the force exerted on the trapdoor.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If springs or pistons are used to actuate the trapdoor, then the trapdoor can move quickly between closed and open positions, but large amounts of energy are required and safety risks increase

Engineering Contradiction:

Improvetrapdoor movement speedVSAvoidenergy consumption

Core Design Contradiction:

SpeedVSUse of energy by moving object

Solution Approach 1:

The patent converts the harmful effect of gravity (which normally causes the trapdoor to remain closed or move slowly) into a beneficial force that actively drives the trapdoor open quickly. By positioning the trapdoor and rider above the slide entrance, gravity naturally pulls the trapdoor downward to open position, eliminating the need for energy-consuming springs or pistons while maintaining fast movement speed.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The trapdoor system becomes self-actuating through gravity. Once the rider is positioned on the trapdoor, the gravitational force automatically moves the trapdoor from closed to open position without requiring external mechanical actuation systems. The system uses its own weight and the rider's weight to drive the movement, making it energy-independent.

Inventive Principle:

Principle #25Self-service

2Speed

If springs or pistons are used to actuate the trapdoor, then the trapdoor can move quickly between closed and open positions, but safety risks increase if a rider becomes stuck

Engineering Contradiction:

Improvetrapdoor movement speedVSAvoidsafety risk

Core Design Contradiction:

SpeedVSObject-affected harmful factors

Solution Approach 1:

The patent eliminates the harmful mechanical forces (springs or pistons) that could pin a rider by converting gravity into a beneficial controlling force. Gravity provides a smooth, continuous pulling force that opens the trapdoor without sudden jerky movements or excessive force, thereby eliminating the pinning hazard while maintaining quick opening speed.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The patent replaces the traditional mechanical actuation system (springs or pistons) with a gravity-based system. This substitution eliminates the harmful mechanical forces that could cause safety issues, as gravity provides a constant, predictable force that cannot suddenly exert excessive pressure on a rider's body.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If traditional mechanical actuation systems are used, then the trapdoor can be operated reliably, but the device complexity and energy consumption increase

Engineering Contradiction:

Improveoperation reliabilityVSAvoidmechanical complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts and removes the complex mechanical actuation components (springs, pistons, motors, gears) from the trapdoor system. By taking out these unnecessary elements, the system achieves simpler construction while maintaining reliability through the inherent reliability of gravity as a natural force.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The trapdoor system performs its own actuation service through gravity, eliminating the need for external mechanical systems. This self-service approach reduces device complexity to minimal components while maintaining operational reliability, as the system requires no complex control mechanisms or actuation hardware.

Inventive Principle:

Principle #25Self-service

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

This approach reduces energy consumption, enhances safety by eliminating the need for strong springs or motors, and ensures reliable operation with reduced mechanical complexity.

Implementation Method 1

Embodiments of the trapdoor drop amusement mechanism utilize momentum produced by the force of gravity to move a trapdoor between a closed position and an open position.

Methodology Applied

Scientific EffectGravity: Gravitation

Implementation Method 2

Embodiments of the trapdoor drop amusement mechanism may utilize a control device to exert a minimal force against the trapdoor, to compensate for frictional losses during operation.

Methodology Applied

Scientific EffectFriction: Friction

Data Source

PatentUS10166483B2Trapdoor drop amusement mechanism

Publication Date: 2019.01.01 WHITEWATER WEST IND LTD

AI summary

A trapdoor mechanism and method of providing a trapdoor mechanism for initiating descent into a slide ride is disclosed. Aspects of invention are directed to an energy efficient mechanism capable of dropping slide riders into the entrance of a slide ride. The trapdoor mechanism utilizes momentum produced by the force of gravity to swing the trapdoor to an open position, to a closed position, and back to the open position. A control device may be utilized to apply force to the trapdoor during its transit between the open position and closed position.