MAJOR PROJECTS: Nursery
Spacing 1 gallon pots using a
The University of California is conducting a three year intervention
trial in cooperation with commercial nurseries to use engineering
controls to reduce the incidence of musculoskeletal disorders among
workers performing selected highly repetitive lifting an carrying tasks.
Previously the UC team identified eighty-five such injuries involving
1246 lost work days among the cooperating pool of 1290 workers for the
years 1993 and 1994. The team and cooperators then selected specific
high risk jobs for intervention. A set of hand tools for carrying and
moving plant containers were developed along with workstation redesign in
one job. These engineering controls are now being subjected to a twelve
month cooperative intervention trial, after which their effect on
incidence of musculoskeletal disorders and related symptoms associated
with these jobs will be evaluated.
John Miles demonstrating one version of a
The Nursery Project has been successful in many ways, especially its
productive relationship with the cooperating nurseries. From injury
records to interviews, from input to ideas, their participation has been
invaluable to the current results that have been and will be published.
A major success of this project is the widespread acceptability of a
large number of tools and systems developed. In fact, perhaps even
greater is the motivation and inspiration of the cooperators to pursue
additional improve ments on their own volition.
Shown here are a variety of additional tools and systems developed in
this project, most of which are currently undergoing extended trials.
maximum voluntary grip on tool with Chatillon Dynamometer.
Worker using one version of a five gallon
Another version of a five gallon
AutoCAD renderings of nursery tool designs:
Two-to-five gallon Point-Pick with BackSide-Grip.
Two-to-five gallon Point-Pick with a Curve-Grip that
is interchangeable with a BackSide-Grip.
Five-gallon C-Clip tool, with forward grip only
due to center-of-gravity effects.
One-gallon 41-Carrier with Curve-Grip. Separate tool can be
manufactured with an Adjusta-Grip (vertically adjustable grip). Tool
can also be made in a 3-can format.
One-gallon Skip-Spacer tool with an Adjusta-Grip. Separate tool can
be manufactured with a
Curve-Grip as shown in the previous image of the 41-Carrier. Tool can also
be made in a
Please see Papers & Articles for relevant articles.
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