Rotating Playground Motor Placement Device

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Solution Overview

Problem

Rotary playground equipment without a drive motor is indistinguishable from regular chairs when not in use, making it unattractive to users, and the integration of a drive motor poses maintenance challenges due to space constraints and heat management issues.

Innovation Solution

A playground equipment driving motor-placement device with a lower stationary component and an upper rotator, where the drive motor is placed above the handle support, allowing for easy installation and maintenance, and featuring a heat releasing unit and torque limiter to manage motor torque and heat dissipation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If a drive motor is integrated into the playground equipment structure, then the equipment can rotate automatically to attract users, but the maintenance becomes difficult due to space constraints and heat management issues

Engineering Contradiction:

Improveautomatic rotationVSAvoidmaintenance difficulty

Core Design Contradiction:

Extent of automationVSEase of repair

Solution Approach 1:

The playground equipment is divided into separate functional modules: the rotating play structure, the drive motor unit, and the base platform. This segmentation allows the motor to be easily removed and replaced without disassembling the entire equipment, directly resolving the maintenance difficulty while preserving automatic rotation capability

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The drive motor is extracted as a separate, removable component from the main equipment structure. The motor unit can be detached and replaced independently, eliminating the maintenance challenges caused by integrated motor placement while maintaining the automatic rotation function

Inventive Principle:

Principle #2Taking out (Extraction)

2Volume of moving object

If the drive motor is placed inside the strut for space efficiency, then the equipment structure is compact, but heat dissipation becomes difficult causing the motor to stop rotating

Engineering Contradiction:

Improvespace utilizationVSAvoidheat dissipation

Core Design Contradiction:

Volume of moving objectVSTemperature

Solution Approach 1:

The motor mounting position is specifically designed with enhanced heat dissipation properties at that location, such as increased ventilation openings or heat sink structures, allowing the motor to operate at higher temperatures without stopping while maintaining compact overall equipment dimensions

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The heat generated by the motor is converted into a beneficial effect by designing the motor housing and surrounding structure to act as a heat sink or thermal radiation surface, where the motor's waste heat helps warm the surrounding area or prevents condensation, turning the harmful heat into a useful feature while maintaining space efficiency

Inventive Principle:

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

3Shape

If the drive motor is placed in a non-visible position, then the equipment appearance is clean and simple, but heat management becomes problematic

Engineering Contradiction:

Improveappearance simplicityVSAvoidheat management

Core Design Contradiction:

ShapeVSTemperature

Solution Approach 1:

The drive motor is nested within a decorative housing or integrated into the equipment's aesthetic design elements, such as being enclosed in a styled panel or mounted within a structural feature that serves both visual and thermal functions, maintaining appearance simplicity while enabling heat management

Inventive Principle:

Principle #7Nested doll (Nesting)

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

The solution enables the rotary playground equipment to attract users with automatic rotation, reduces maintenance complexity by isolating the drive motor from the main structure, and effectively manages heat dissipation, ensuring continuous operation.

Implementation Method 1

a coupling fixed to an upper portion of the shaft, for conveying the rotation of the drive motor to a shaft of the lower stationary component

Methodology Applied

Scientific EffectMechanical connection: Mechanical Force

Implementation Method 2

the heat of the drive motor is hard to be emitted to external of the strut, the temperature of the drive motor rises

Methodology Applied

Scientific EffectThermal radiation: Thermal Radiation

Implementation Method 3

the heat of the drive motor is hard to be emitted to external of the strut

Methodology Applied

Scientific EffectConvection: Convection

Data Source

PatentUS8876615B2Playground equipment driving motor-placement device and rotating playground equipment

Publication Date: 2014.11.04 BLD ORIENTAL LTD

AI summary

Provided are a driving motor-placement device to be used in rotating playground equipment that is superior in terms of maintenance, and rotating playground equipment. The disclosed playground equipment driving motor-placement device is characterized in that it is provided with a lower stationary component and an upper rotator; the lower stationary component is provided with a stationary plate that can be removed from the playground equipment and a shaft that stands upright on said stationary plate; the upper rotator is configured to be able to rotate around the shaft of said lower stationary component and is provided with a handle support that supports handles that users can grasp, and a driving motor support that supports the driving motor; said driving motor support is provided above the handle support;and a coupling that transmits the rotation of the driving motor to the shaft of the lower stationary component is fixed to the top of said shaft.