Table of Contents
Advertisement
8. Technical description of the ceiling hoist ROBIN
The Invacare Robin
powered by batteries charged through the hand control.
The Invacare Robin
has been tested and approved by TÜV Product Service in compliance with the standard EN10535.
8.1 Mechanical construction
2 straps
The Invacare Robin
always have the same length and are rewound/unwound at the same speed. The straps exit the bottom of the
housing at the housing ends, and are secured by two bolts on the rewinding gears.
2x2 gears with rewinding and arresting device
The rewinding mechanism functions by rewinding the two straps onto the two rewinder gear spools, where the
gear wheels engage with the driving shaft of the gear motor output shaft. The rewinder gear is constructed with a
centred spool between two sets of teeth on which the strap rewinding occurs.
The gear motor output shaft engages with all four set of teeth (2x2), thus ensuring that the entire construction
always is balanced and preventing any kind of twisting or build-up of moment in the chassis.
The gears, including the rewinder, are manufactured from synthetic material and assembled with bolts with inner
and outer hexagonal heads. The motor output shaft is manufactured from alloy steel.
The gear wheels have a built-in arresting device. If the straps unwind too quickly, two steel latches engage with
arresting bolts on the housing sides, stopping the unwinding immediately.
Gear motor and parallel plate chassis
The chassis consists of two aluminium plates, between which the rewinder gears are placed centrally. The chassis
plates are held by the rewinder gears and bolts, respectively. The drive motor is a worm gear motor located on
the chassis exterior, where the output shaft goes through the chassis plates. The motor is a standard 24-volt
wiper-motor.
Revolving inlets
At the housing inlets for the two straps, there are two inlet switches which prevent the straps and the hooks
from being pulled too far into the housing and protects against pinching. The inlet switches are manufactured from
synthetic material. Both inlets are revolving to reduce wear on the straps and ensure optimum rewinding.
Control and batteries
The control pcb is located on the chassis frame exterior on the opposite side of the gear motor inside the housing.
The control includes a soft start, starting the straps and motor slowly, thus ensuring a gentle start.
The control is powered by a battery pack with a voltage rating of 24 volts.
The battery type is NiMh. The batteries are type AA in a pack with an output voltage rating of 24 volts. In the
ceiling hoist, the battery pack is connected to the control through a cable and plug.
Manual control
When not in use, the hand control can be placed in a clip to the strap. To charge the batteries in the ceiling hoist,
place the hand control in its charger. The back of the hand control features 3 gold plated contacts for charging
the batteries of the ceiling hoist when the hand control is placed in the charger holder. This charger holder can be
mounted on the wall, and the transformer connected to the mains.
Hooks
The end of each strap features hooks for the lifting sling. The hooks have pivots so that the lower part of the hook
may pivot freely. This prevents the strap from twisting which could result in an irregular operation or inadvertent
halt when using the ceiling hoist.
Each strap hook has been designed to prevent the connection strap of the sling from falling off the hook when it
carries a load.
42
is a two-strap ceiling hoist for max. user weight of 200 kg driven at 24-volts. The motor is
TM
carries
-marking according to the Medical Directive 93/42/EEC of 27 of May 2003 and
TM
is a ceiling-hoist featuring two straps. The straps run synchronously, which means that they
TM
TM
Advertisement
Table of Contents
