13
4.0 Structure a n d fun ctio n
Fig. 4
Outer tube base plate
b1. Threads M10 for mounting screws
b2. Centering screws for plates on tube
b3. Attachment of ballscrew to base plates
b4. Hole on outer tube base plate – no function
c1. Areas of force distribution
c2. Areas of force distribution
4.2 Brief description
The functional principle of the telescopic pillar CPMT is
based on a push or pull force for the movement of centric
and eccentric loads. The CPMT requires an external control-
ler for it to be operational.
A DC gear motor attached to the middle tube drives two
spindle nuts simultaneously via a spur gear. The rotation of
the nuts induces a linear motion of the two ballscrews in op-
posing directions. The ballscrews are attached to the base
plates and cause an extension or retraction of the telescopic
tubes depending on the direction of motion. A built-in brake
holds the position at a standstill or during power cut.
4.0 Structure and function
4.1 Overview
Fig. 3
a1. Outer tube base plate
a2. Motor cable
a3. Outer tube
a4. Middle tube
a5. Inner tube
a6. Rim covers
a7. Glide pads
a8. Inner tube base plate
a9. Mechanical safety end stop
a8
a5
a7
a6
b1
b1
c1
c1
c1
c1
c2
b1
b1
c1
c1
b1
b1
b4
b2
b2
b2
b2
b3
a9
a2
a4
a3
a1
Inner tube base plate
