Portable escalator
AssigneeDk City Corporation
InventorChiu Hsiang Lo
Life of this patent
Estimating the term…
Abstract
A portable escalator includes a frame, a stair caterpillar, a driving device and a braking device. The driving device includes a motor, a chain-sprocket unit and a belt-pulley unit. The motor includes a mandrel and is connected to the frame. The chain-sprocket unit is connected to the stair caterpillar. The belt-pulley unit includes two pulleys and a belt. The first pulley is connected to the mandrel. The second pulley is connected to the chain-sprocket unit. The belt is provided on the first and second pulleys so that the motor is operable to drive the stair caterpillar through the belt-pulley unit and the chain-sprocket unit. The braking device is connected to the mandrel so that the braking device is operable to stop the mandrel.
Claims6
A portable escalator comprising:
- a frame;
- a stair caterpillar;
- a driving device comprising:
- a motor comprising a mandrel formed with two ends, wherein the motor is connected to the frame;
- a gearbox comprising a first gear connected to one of the ends of the mandrel, a second gear coaxially connected to the first gear, a third gear engaged with the second gear, a fourth gear coaxially connected to the third gear, a fifth gear engaged with the fourth gear and a power takeout axle co-axially connected to the fifth gear at an end;
- a chain-sprocket unit connected to the stair caterpillar;
- a belt-pulley unit comprising:
- a first pulley co-axially connected to the power takeout axle;
- a second pulley connected to the chain-sprocket unit;
- and
- a belt provided on the first and second pulleys so that the motor is operable to drive the stair caterpillar via the belt-pulley unit and the chain-sprocket unit;
- and
- a braking device connected to the second end of the mandrel so that the braking device is operable to stop the mandrel.
Dependencies are inferred from the claim text.