Proximity Safeguarding For Automatic Shuttle Conveyors; Applicability; References For Proximity Safeguarding; Hazards To Personnel In Proximity To Shuttle Conveyors - Milnor 48032BTL Safety Manual

BISUUI01 (Published) Book specs- Dates: 20181207 / 20181207 / 20181207 Lang: ENG01 Applic: EOT

6. Proximity Safeguarding for Automatic Shuttle Conveyors

Proximity safeguarding—a means of preventing personnel from entering the path of a machine,
such as an industrial robot, that moves within a large area.

Applicability

6.1.
This document—
applies to Milnor
operator intervention (automatic operation),
does not apply to shuttles that require operator input continually, such as directing all shuttle
movements (manual operation).

References for Proximity Safeguarding

6.2.
ANSI Z8.1-2016 "American National Standard for Commercial Laundry and Drycleaning
Equipment and Operations - Safety Requirements"
OSHA Standard 29 CFR § 1910.212 "General Requirements for All Machines"
OSHA Directive STD 01-12-002 - Pub 8-1.3 "Guidelines for Robotic Safety"
ANSI/RIA R15.06-2012 "American National Standard for Industrial Robots and Robot
Systems- Safety Requirements"
ANSI/ASME B15.1-2000 "Safety Standard for Mechanical Power Transmission Apparatus"
OSHA Publication 3067 "Concepts and Techniques of Machine Safeguarding"
ISO 10472-1 "Safety Requirements for Industrial Laundry Machinery"

Hazards To Personnel in Proximity to Shuttle Conveyors

6.3.
Milnor automated laundering systems use
the processing machines in the system. Depending on model, an automatic shuttle conveyor may
move in any of the following ways, in addition to running its conveyor belt(s):
• It may travel along (traverse) a line of machines (typically dryers).
• Its conveyor bed(s) may ascend and descend (elevate) within the machine frame.
• Its conveyor bed(s) may extend and retract within the machine frame.
• The conveyor bed and frame may pivot.
• Wet goods shuttles have a bucket that elevates and tilts.
These motions pose strike, crush, sever, and entrapment hazards to personnel in proximity to the
shuttle. For the safety of personnel, owner/users must provide proximity safeguarding that
protects personnel from the moving shuttle.
A common method of proximity safeguarding is safety fencing with interlocked gates that disable
the shuttle when a gate is opened. When a shuttle is disabled, this will eventually cause other
machines in the system to
cause them to immediately stop moving. In the case of a tunnel system, the press or centrifugal
extractor can pose additional hazards to personnel in proximity to the equipment. Hence, the
safeguards must also disable any presses or extractors. Tunnels and dryers do not pose a
significant hazard to personnel merely because they are in proximity to the equipment, and need
not be automatically disabled.
WARNING 25 : Multiple Hazards—Proximity safeguarding provides only partial protection
and only against injury resulting from entering the shuttle path. It is not a substitute for proper
®
automated laundering systems with shuttle conveyors that move without
automatic shuttle conveyors
(wait for action from another machine), but it will not necessarily
hold
22
to transport goods among
PELLERIN MILNOR CORPORATION