Transport Turning Device with Preloaded Backlash Restriction
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Solution Overview
Problem
Existing transport apparatuses with turning devices suffer from rattling due to backlashes in the transmission mechanism, leading to unstable orientation and ineffective article transfer.
Innovation Solution
Incorporating a rattling restriction mechanism that includes a pushed portion and a restriction section, where the pushed portion rotates with the turner and the restriction section, supported by the support body, includes a contact member and a biasing mechanism to reduce backlashes and stabilize the turner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a transmission mechanism with gears, chains, or toothed belts is used in the turning device, then the turning driving force can be transmitted from the drive source to the turner, but backlashes at meshing portions cause rattling in the turning direction
Solution Approach 1:
The biasing mechanism applies a preliminary counteracting force to the backlash before it causes harmful rattling. The contact member, biased by the biasing mechanism, continuously presses against the pushed portion to prevent the transmission mechanism components from separating during turning operations, thereby eliminating the root cause of rattling while maintaining smooth power transmission
2Ease of manufacture
If backlashes are provided at meshing portions in the transmission mechanism, then the mechanism can operate with clearance, but the transfer machine rattles significantly in the turning direction
Solution Approach 1:
The invention converts the potentially harmful backlash into a beneficial pre-loaded contact system. The biasing mechanism transforms the clearance that causes rattling into a controlled contact force that eliminates play between transmission components, turning the manufacturing advantage of clearance into a precision advantage by maintaining consistent contact without requiring tight tolerances
3Adaptability or versatility
If the transfer machine is turned with use of a turning device, then the transfer direction can be changed, but the orientation becomes unstable due to rattling
Solution Approach 1:
The biasing mechanism applies a preliminary counteracting force to the backlash before it causes harmful rattling. The contact member, biased by the biasing mechanism, continuously presses against the pushed portion to prevent the transmission mechanism components from separating during turning operations, thereby eliminating the root cause of rattling while maintaining smooth power transmission
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 proposed solution effectively reduces rattling in the turning direction of the transfer machine, enhancing the stability and accuracy of article transfer by minimizing backlashes in the transmission mechanism.
Implementation Method 1
a biasing mechanism configured to bias the contact member that is in contact with the pushed face, toward the pushed face in the turning direction
Data Source
AI summary
A turning device includes a rattling restriction mechanism configured to restrict a rattling in a turning direction of a turner caused by backlashes in a transmission mechanism. The rattling restriction mechanism includes a pushed portion and a restriction section. The pushed portion includes a pushed face facing the turning direction. The restriction section includes: a contact member configured to come into contact with the pushed face while the pushed face is positioned in a specific range in the turning direction, the contact member is arranged in a movement path of the pushed face configured to move in conjunction with a turning of the turner; and a biasing mechanism configured to bias the contact member in contact with the pushed face, toward the pushed face in the turning direction.