Elevator – industrial lift truck – or stationary lift for vehicle – Stairway assist for individual or minor barrier lift for... – Mounted adjacent stairway for travel parallel thereto
Patent
1996-10-31
1999-06-01
Noland, Kenneth
Elevator, industrial lift truck, or stationary lift for vehicle
Stairway assist for individual or minor barrier lift for...
Mounted adjacent stairway for travel parallel thereto
B66B 908
Patent
active
059080876
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a tandem driving device of a stair lift to bring the stair lift along a guiding system.
BACKGROUND OF THE INVENTION
There are many advantages both individually and to the society if disabled people can keep on living in a well known environment at home. Aid to move between different floors can be one condition for disabled people to keep on living and act in a wellknown environment. Hereby the possibilities to obtain a high quality in life is increased. This can be explained by the fact that the daily ususal routines once being automated in the brain can continue to work without too conscious efforts far up in the old age as long as the brains of the old people doesn't are exposed during a short period of time to too many new impressions (to a great pressure of information). This can happen when moving from the old housing to a home for the aged. Thus, the older people will then often be quite dependent upon external help. Neurophysiologically this can be explained by the fact that behaviour patterns in the brain being used to, which can work excellent in the old environment at home, does not often manage to adopt to new environments with many new impressions. There is a risk that the behaviour patterns collaps.
PRIOR ART
To-day there is an established technique for wall mounted conveying systems for stair lifts. Preferably the stair lifts shall be able to pass over horisontal passages along the extension of stairs which is inclining, and through sharp curves. For this reason the most usual stair lifts have been made positively guided, and maybe driven along both upper and lower rails, normally included in the guiding system. Heretofore an exact parallellity must exist beween these two rails, one monunted above the other at the wall along the stairs. Often this kind of guiding system involves a close measuring of the stairs itself in a coordinate system, and later to have a specific guiding system specially manufactured at the factory and mounted onto the wall at the stairs with an absolute precision. This procedure is circumstantial and often involves several visits from mechanics and needs later adjusting to have the stair lift arrangement to function as expected. One example of such a stair lift is shown in WO 92/14673.
EP-A- 0143737 disclose a stair lift having two rails at different levels and where a guiding of the stair lift along both these rails require an excakt adaption and installation of all the components forming part of the system.
DE-A-3 934 431 disclose a stair lift using just one supporting or guiding rail. A handle or a seat is movably arranged along the rail. At this device the problem with parallellity and positive drive of the lift between two guiding rails has been excluded. It is true that the device shown in this dockument is exemplary simple, but when carrying a sitting person along stairs this person will probably experience the trip as hazardous and instable. The center of gravity of the load and lifting device must always be directely under the suspension point.
THE OBJECTS OF THE INVENTION
The main object of the present invention is to obtain a technique with a great degree of safety to comfortably run a stair lift along a conveying system fitted onto a wall and which also can be arranged in curves at the same time as the stair itself is very steep. The technique includes both a method to run the stair lift and a driving device for the stair lift only engaging a single guiding system passing between different floors in a building.
Another object of the invention is to obtain av driving device for a stair lift with double driving motor devices to maintain the action also when one driving motor device is out of order.
Yet another object of the invention is to obtain a technique not requiring expensive and complicated messurment, special manufacturing and a later mounting of a guiding system, but instead use bent and calibrated pipe components being easily connected and mounted in place with special pressing tools without to great require
LandOfFree
Tandem driving device of a stair lift does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tandem driving device of a stair lift, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tandem driving device of a stair lift will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-949826