Arm Set-up Manual
©
2011, Equipois Inc.
4 of 32
All rights reserved.
101-9110 Rev E
Glossary
Italicized terms in the definitions have their own glossary entries.
clevis pin
—The quick-release pin that attached the shoulder
hinge block
to the
mounting interface block
.
centering
—The movement of the arm to a horizontal rest position when the tool is released.
dock
—A mechanism for fastening the
zeroG®
arm in a folded, out-of-the-way position.
end block—
One of several pieces that connect the upper and lower assemblies of a
link
and contain
the sockets for connecting the link variously to the hinge block,
mounting interface block
, or the
gimbal
post
.
gimbal
—The mechanism that holds the tool
*
while allowing it to rotate freely. The gimbaling me-
chanism includes the
yoke
and is attached to the arm, often by a
post
.
hinge block—
See
link
.
iso-elasticity
—The
zeroG
arm’s property of requiring virtually the same force to move the tool* up
and down over the vertical range of motion. As iso-elasticity is decreased, the range of iso-
elastic motion becomes narrower, and the force required to move the tool increases more
quickly as it is moved toward the top and bottom of the range. Iso-elasticity can be adjusted
with the Rate knob.
lift
—The upward force with which the arm supports the
payload
.
link—
A segment of the arm. Installations that require minimal vertical range use one dynamic link
and one static link, which has no spring and adjusters.
The arm’s links are termed the “distal” or forearm link and the “proximal” or upper arm link.
The shoulder hinge block connects the proximal link to the
mounting interface block
, and the el-
bow hinge block connects the distal link to the proximal link.
mounting interface block
—The connector that is fastened to the
mounting system
and includes the
socket to which the shoulder
hinge block
of the
zeroG
arm is attached.
*
zeroG
arms can support things beside tools, such as parts and assemblies. For simplicity,
“tool” in this document refers to whatever the customer mounts in the gimbal.