Tire Building Drum Drive Apparatus with Selective Clutch

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

The existing driving apparatus for building drums requires two separate rotation driving means to rotate the outer and screw shafts, increasing mounting costs and weight, and complicating installation on moving support bases.

Innovation Solution

A driving apparatus with a double shaft structure utilizing a single rotation driving means connected via a rotation transmitting member and a connecting/disconnecting clutch, allowing simultaneous rotation of both shafts or exclusive rotation to the screw shaft for movement operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If two separate rotation driving means are provided to rotate the outer and screw shafts, then both shafts can be driven independently, but mounting cost increases and weight increases

Engineering Contradiction:

Improveindependent driving capabilityVSAvoidapparatus weight

Core Design Contradiction:

Adaptability or versatilityVSWeight of moving object

Solution Approach 1:

The patent combines two separate driving functions (outer shaft rotation and screw shaft rotation) into a single driving means by using a clutch mechanism that can selectively connect to either shaft. This allows one motor to perform both functions that previously required two separate motors, thereby reducing weight and mounting cost while maintaining the capability to drive both shafts independently when needed.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The single rotation driving means is designed with universal capability to drive both the outer shaft and the screw shaft through the clutch mechanism. The clutch can be connected to the outer shaft for rotation operations or to the screw shaft for movement operations, allowing one driving means to perform multiple functions that previously required separate driving means.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If two separate rotation driving means are provided, then both shafts can be driven independently, but mounting space requirement increases

Engineering Contradiction:

Improveindependent driving capabilityVSAvoidmounting space

Core Design Contradiction:

Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The patent merges two separate driving mechanisms into a single integrated driving means with a clutch system. This consolidation reduces the total mounting space required while preserving the ability to independently drive both the outer shaft and screw shaft through selective clutch engagement.

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If two separate rotation driving means are provided, then both shafts can be driven independently, but apparatus becomes less suitable for moving support base installation

Engineering Contradiction:

Improveindependent driving capabilityVSAvoidinstallation suitability

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent combines two separate driving means into one unified driving system with selective clutch connection. This reduction in component quantity and weight makes the apparatus more suitable for installation on moving support bases, improving ease of manufacture and installation while maintaining the capability to drive both shafts independently when required.

Inventive Principle:

Principle #5Merging (Combining)

4Weight of moving object

If a single rotation driving means is used with clutch mechanism, then mounting cost and weight are reduced, but device complexity increases

Engineering Contradiction:

Improveapparatus weightVSAvoidclutch mechanism complexity

Core Design Contradiction:

Weight of moving objectVSDevice complexity

Solution Approach 1:

The clutch mechanism serves as an intermediary component that enables a single driving means to control both the outer shaft and screw shaft. By introducing the clutch as a mediator, the system achieves weight reduction while managing the complexity through a well-established mechanical component that simplifies the overall architecture despite adding selective connection capability.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS8684057B2Driving apparatus of building drum for tire

Publication Date: 2014.04.01 TOYO TIRE CORP

AI summary

The invention is for enabling one piece of rotation driving means 17 to drive to rotate both of an outer side shaft portion 3 of a drum shaft 1 and a screw shaft 4 on an inner side as a driving apparatus 10 of a tire building drum D, including an outer shaft 13 connected to the outer side shaft portion 3, a middle shaft 14 connected to the screw shaft 4, one piece of the rotation driving means 17 connected to the middle shaft 14 by way of a rotation transmitting member 18, and a clutch 26 interposed between the rotation transmitting member 18 connected to the middle shaft 14 and the outer shaft 13, and constituted to transmit rotation of the rotation driving means 17 to both of the middle shaft 14 and the outer shaft 13 in connecting the clutch 26 and transmit the rotation of the rotation driving means 17 only to the middle shaft 14 in cutting the clutch 26.