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Sound attenuation for material handling systems

a material handling and sound attenuation technology, applied in the field of sound attenuation in material handling systems, can solve the problems of inherently loud receptacles or totes for handling and transporting articles and materials, material handling operations that produce significant noise, deleterious health effects for workers and operators inside the material handling facility, etc., to reduce vibration, reduce vibration, and reduce vibration

Inactive Publication Date: 2021-04-01
DEMATIC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is a sound attenuated material handling element in the form of a conveyor roller. The roller has a portion of sound damping material placed inside it to reduce vibration and noise during material handling operations. The damping material is a high-density polymer that is placed in continuous contact with the roller's inner wall. This results in a more cost-effective and efficient way to attenuate sound compared to external coatings. The damping material can be retrofitted into existing rollers or installed during manufacturing to reduce the size of the roller required. Overall, the invention improves the performance of conveyor systems by reducing vibration and noise levels.

Problems solved by technology

Material handling operations produce significant noise, due to various causes, including vibration during operation and manipulation of components of material handling systems.
Significant levels of noise are known to cause deleterious health effects for workers and operators inside of material handling facilities.
Receptacles or totes for handling and transporting articles and materials, such as nestable material handling totes, are inherently loud because of their design and / or material.
Totes are effectively a resonance chamber and when excited by being dropped or when running over rollers on a conveyor, the tote creates substantial noise, even when full of product.
Such totes can produce significant noise during conveyance and manipulation of the tote based on the inherent material properties of the tote.

Method used

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  • Sound attenuation for material handling systems
  • Sound attenuation for material handling systems
  • Sound attenuation for material handling systems

Examples

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Embodiment Construction

[0029]Referring now to the drawings and the illustrative embodiments depicted therein, a sound attenuated or damped roller apparatus 10 and a sound attenuated or damped material handling tote or bin 110 are provided for reducing sound during operation of conveyor type material handling systems, such the sound produced as a tote 110 moves along a conveyor roller system. In the illustrated embodiments of FIGS. 1-6, the roller apparatus 10 includes a conveyor roller assembly 12 with a metal roller, casing, or tube 14 defining an exterior roller surface for supporting articles (e.g. totes, receptacles, boxes, or individual items) as they are transported along the conveyor roller system (FIGS. 1-2). A sound damper 16, such as a sound damping material, is disposed on the interior of the roller 14. The roller apparatus 10 may be provided with new conveyor systems or for retrofit applications to sound-attenuate rollers in existing conveyor systems. In a preferred embodiment, the sound-atten...

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PUM

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Abstract

A sound attenuated material handling element reduces vibration and sound in a material handling system. The material handling element may be a sound attenuated roller for use in a roller conveyer or a sound attenuated nestable tote for receiving and transporting articles in the material handling system. Reducing vibration in material handling element reduces the noise produced by the element. The sound attenuated roller includes sound attenuating material disposed inside of the roller and in contact with the inner surface of the roller body. The sound attenuated nestable tote includes sound dampening material disposed in or formed with the tote structure. The sound damping material may be integrally formed with the roller or tote in order to maximize vibration and noise attenuation. Three dimensional computer analysis may be used to determine optimized locations for placement of the sound damping material on the roller or tote.

Description

CROSS REFERENCE TO RELATED APPLICATION[0001]The present application claims priority of U.S. provisional application Ser. No. 62 / 906,965 filed Sep. 27, 2019, by Eric Ahlquist and Jeffrey Devries for SOUND ATTENUATION FOR MATERIAL HANDLING SYSTEMS, which is hereby incorporated herein by reference in its entirety.FIELD OF THE INVENTION[0002]The present invention is directed to sound attenuation in material handling systems, more particularly for sound attenuation of rollers for conveyors and receptacles for order item processing.BACKGROUND OF THE INVENTION[0003]Material handling operations produce significant noise, due to various causes, including vibration during operation and manipulation of components of material handling systems. Noise sources include ringing in conveyor rollers due to vibrations in the rollers and impacts with the rollers, as well as rattling and vibration in material handling totes that produce resonance inside the tote. Significant levels of noise are known to ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G10K11/162B65G39/02B65D21/02B65D25/14
CPCG10K11/162B65G39/02B65G2207/32B65D21/0209B65D25/14B65D21/0233B65D25/36B65G39/07
Inventor AHLQUIST, ERICDEVRIES, JEFFREY S.
Owner DEMATIC
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