Full Description

Background of the invention:

The present invention is concerned with multi cars elevator, to conduct more than one car in one lane, in order to reduce the need for several elevators one place, and reduce overcrowding and long waiting and overload, this invention has the following types:

1- Single lane, each car has its own motor, weight, pulleys and wires

2- Open loop lane, each one pair of cars are coupled and has its own motor, pulleys and wire, and no weight needed

3 - using one motor to drive all the system using clutches(for the two types).

Simplified drawing for the two types in figure (14)

Previously the people used one car for each lane, when the lift not working, it becomes very difficult, which is needed to speed reparation, or using more than one elevator in one place, this would waste of building space, this is redundant and expensive because of the equipment needed by each elevator, and sometimes use of more than one elevator is extremely difficult because of the small building space or lack of importance, therefore, the alternative solution is the stairs, which is hard on the elderly, the sick and pregnant as well as carrying luggage. The invention is trying to overcome these problems by conducting more than one car in one lane, and more than one pair of cars in open loop lane.

General Description of the Invention

Given the problems mentioned because of the use of one car for each lane, conduct more than one car in one lane, and more than one pair of cars in open loop lane, the field of invention is the elevators, and the goal is to dispense with several lifts and usage of the stairs except in emergencies, and serving large numbers of users at the peak times without the occurrence of overcrowding, long waiting or overload, and each car has its own processor, there is a main processor for all the system, the communication between cars processors and the main processor is by the wireless communication or infra red communication .

A brief explanation of the figures:

Figure (1): The first method.

Figure (2): The second method.

Figure (3): Side view of the components of single lane.

Figure (4): top view of the car shows how to install the wires.

Figure(5): top view of the cars shows the different positions of the wires.

Figure (6): top view of the components of the systems.

Figure (7): three cars in a single lane (elevation).

Figure (8): three cars in a single lane (side view).

Figure (9): three cars in each branch in an open loop lane (elevation).

Figure (10): three cars in each branch in an open loop lane (side view).

Figure (11): third method in a single lane.

Figure (12): third method in an open loop lane, stop in the floor.

Figure (13): third method in an open loop lane, continue going down.

Figure (14): simplified drawing for the two types

Figure (15): an open loop lane (elevation), canceling area losing.

Figure (16): an open loop lane, cancel area losing, alternative solution.

Figure (17): an open loop lane, cancel area losing, alternative solution.

Figure (18): single lane, alternative solution.

Figure (19): an open loop lane (elevation), more canceling for area losing. Detailed Description:

Because it is not one car in the lane, it is difficult to connect a power cable to each car to feed the electric and electronic components, transporting the electric energy to the car by the carrying wires or chain, and by brushes, and using rechargeable battery to power that components if the power off in the building.

Also difficult to connect a signal cable to each car for data and control, so that we used the wireless communication for data and control, also we used the IR communication for data and control.

To avoid the danger of falling down, clashes are installed on the top of the cars.

First type: Single lane

As an example we have three cars in a single lane, see Figure(3) : shows three cars(l),(2),(3) in a single lane(16) , in the right side of the cars the three wires heading towards the pulley (17) then to the pulley (10) ,(11) and (12), then to the weights(4) ,(5),(6), and in the left side of the cars wires moving to the top towards its pulley (18) and from there to the pulleys of the three motors (13) ,(14) and (15) and then to the weights (7) , (8) and (9), but pulley (17) is not one pulley, also pulley (18) is not one pulley, but each one of them is three pulleys as we will see later in the explanation of figure (6).

Instead of using wires and pulleys to carry the car, we can use chains and gears to make sure that the motion will be achieved regardless of the load of the cars.

With the multitude of cars in one lane, a care should be taken to avoid the friction of wires with each other and with the cars. Figure (4) shows the car as a top view, and shows how to install the two wires (1) and (4). Pyramid (2) is installed on the car to hold the wire (1), and pyramid (5) is installed to hold the wire (4). The wires are far from the car, the wires are fixed out of the circumference of the cars, so that the wire does not come into contact with this car or with the other cars. To avoid the contact of the wire with the other wires of the other cars, the place of installation of the pyramids on the car has been made vary from one car to another.

As it is shown in Figure (5), the cars (1), (2) and (3), each car has a place of installing the two pyramids which is different from the other.

Figure (6) represents a top view of the three cars that has a different positions of the carrying pyramids, and the pulleys(l),(2),(3) in one side, while pyramids((4),(5),(6) in the other side, each pyramid has a wire fixed in its top, the pulleys are in the top of the building, the Upper car (7), while the Lower and Middle cars do not appear here in the figure. Pulleys (1), (2) and (3) are represented in Figure (3) by pulley (17), and pulleys (4) , (5) and (6) are represented in Figure (3) by pulley (18). The Upper car has pulleys (3) and (4), the Middle car has pulleys (2) and (5), and the Lower has pulleys (1) and (6).

So figure (3) shows the system as a side view, while figure (6) show a top view of some part of the system.

Figure(7) and figure(8) are showing alternative solution, all the motors and weights in one side, it is in the left side only or in the right side only, the idea is to use coaxial pulleys, see figure(7) the cars (7),(8),(9), small pulleys(2),big pulleys(l), the two wires(5),(6), the lane(3), the motor(ll), weight(12),pulleys(13), weight(14) but pulley(l) is not a single pulley, it is a group of pulleys, they are three pulleys(l) in figure (8) means one pulley for each wire, also pulley(2) is a group of pulleys, they are three pulleys(2) in figure (8), figure(7) is elevation, while figure(8) is side view.

Figure(8) two wires(5) carries car(9), two wires(6) carries car(8), two wires(lO) carries car(7),the axis of the pulleys (4).

Another alternative solution in figure (16), right pulleys for moving the right side for the two branches, left pulleys for left side for the two branches, right pulleys(9),its wires(3), left pulleys(l),its wires(2),cars(5),(6),(7),(8),lane(4) Figure (17) is the left side of figure (16) Figure(17) cars(3),(4),(5),(6),lane(2),pulleys(l)

Return to figure (1) Suppose that we have three cars in a single lane (4) :upper car(3), middle car(2) and lower car(3), all the three ascend and descend in a single lane, and each car has its own motor, weight, wires, pulleys and a processor, the common thing between the cars is the lane and the main processor.

In the normal times the number of the operating cars decreases, and the rest goes either under the lower floor or at the top of the building, Figure (1) which shows that the middle car (2) and the lower car (1) are below the level of the lower floor, while the upper car (3) is at the level of the lower floor(5), and at the peak times all cars operate, this is done automatically, and we have three methods to operation : -

The first method: normally, all cars go under lower floor (maybe the ground or maybe the basement), except for the upper one that shall be in the lower floor as shown in the Figure(l) , if the entry and exist of the users of the upper car finished , the upper car will begin to go up , the middle car will come to that place. The cars varied in the field of movement. The upper car goes to the upper third of the building and does not stop during the ascent in the lower third or in the middle third but stops only in the upper third, but during the descent it stops at any floor when it is asked to do that, the middle car goes to middle third of the building , and does not stop during the ascent in the lower third but it stops in the middle third of the building, and during the descent it stops at any floor , lower car only goes to the lower third of the building and stops there , but it does not goes higher than that.

If the number of the user is dropped and the lower car is made to stop under the lower floor, hence, we have only two cars, the upper and the middle which has became now the lower car, then the upper one moves from the lower floor to the end of the lower half of the building, if the number of user is decreased more and the middle car is made to stop, hence , only upper car will move from the lower floor to the upper floor to serve all the floors. The second method: Figure (2) : Here the field of movement of the lower car(l) is between the lower floor to a near floor(4), say it is the first or second or third floor, and the rest of the cars have to move from that near floor , which is the end of the field from which the lower car moves higher, in the figure lower car(l) in the lower floor, middle car(2) is below the near floor(4), higher car in the near floor, each car renders service to a group of floors, when the lower car stops at the lower floor , then all users enter, and whenever passes a required floor the lower car stops until it arrives the last allowable floor, the rest of users will exit, the users who want that floor can go to their flats, and the remaining users who want the upper floors will keep waiting , all cars come to this floor , and the upper car stops versus the door and the rest keep waiting under that floor , and whenever a car has completed the exit and entry of the users it will go up toward its floors , then next car ascend to that place, and every user enters the car that take him to his floor, whereas each car renders service to certain floors , and each car has a certain sign or number on it.

Third method using "I" lane

Figure(ll): For fast entry and exit for the users, it is better to use more than one door in the lower floor, because the majority of the people are using it, the lane (1), at the lower part of the lane it is ended with horizontal part(7) to allow to more than one car to stop over it in one time, this part is not 100% horizontal, but it have a some slight slop with the horizontal, so that the car will move to the right end of that part if it is free, cars(2),(3),(4),(5), the car has a wheels(6) to move horizontally, this part has a length that enough for some cars to stop in one time, when stopping, each car will be in a front of a door, so entry and exit of the users will be very fast.

Second type: open loop lane

No weight needed for this type, each one pair is coupled mechanically using two wires or two chains and has its own motor and pulleys or gear, see figure(9) the length of the wire that connected between the two cars of any pair is same, cars(4),(5),(6),(7),(8),(9), the wires(3),small pulleys(l),big pulleys(2), motor (10).

The three methods that mentioned for the last type are valid for this type, regarding Third method "I" lane, see figure(12) the cars(l),(2),(5),(6)(7), the horizontal part of the lane is enough for some cars, and some modification for the "I" is needed for this type to make the lower vertical part of the lane narrow using the moveable arm(3), it can move around point(4), its motion is under control of the main processor, if this arm moves to the left and the arm(9) goes horizontal(as they appear now in the figure) it will deflect the car(2) to the left, and the car contact the horizontal part from its left end then start to go right, but if the arm(3) become vertical, and arm(9) goes down as they appear in figure(13), at that time the cars go down under this floor.

Figure(lO) is side view, cars(7),(8),(9), two wires(5) to carry car(9), two wires(6) to carry car(8), two wires(lO) to carry car(7), big pulleys(l),small pulleys(2), motor(3),axis of the motor(4).

If the users are few, the processor stops one pair or any number of pairs, the stopping is achieved by sending one car of that pair to be stopped in the top of the building and another car to down of the lower floor, so that the enlargement for the lane should be under the lower floor, left or right, no need to enlarge both sides, the upper end of the lane should be high to be enough for some of the cars also.

Figure (9) shoes that the space between the right side and the left side of the lane is loses the area, and it is repeated in all floor.

To cancel this losing of the area, see figure (15) two pulleys (1), (2) should be added to the lane to make closing for the two internal wires, motor (3), small pulleys(4), cars(6),(7),(8),(9), big pulleys(5) is smaller than that in figure(9), so the space between the right side and left side of the lane is canceled.

Another alternative solution in figure (16) right pulley for moving the right sides for the two branches, left pulley for the left side for the two branches. Figure (17) shows left side of figure(16).

For more cancelling for area losing see figure (19), by making the lane in the lower part of the building(4) is enough for one car only(3), while the lane in the upper part(5) is enough for two cars(l),(2). see figure (3), the motors are (13), (14), (15) ,but (18) is just pulleys, in this case we used 3 motors to drive 3 cars, another solution is to drive all the system using one hi power motor, this motor will be (17) or (18) in figure (3), and (3) in figure(15), (1) or(9) in figure(16), and (1) or (2) in figure(18), and (3) in figure(lO) and (10) in figure(9),and (3) in figure(8) and (11) in figure(7), at that case (13), (14), (15) in figure(3) will be just pulleys, the pulleys of the motor has clutch to rotate with motor or not rotate(braked), see figure (7) the elevation and figure (8) it's side view, motor(3), big pulleys(l), small pulleys(2).

Figure (18) is alternative solution for single lane, see figure (7), all in one side.

Figure (18) motor (1) or (2), pulleys(3),(4), weights (5),(6), cars(7),(8)

About the second type(open loop lane), see figure(9) elevation and figure (10) which is side view, the motor (3) in figure(lO) drives the clutched pulleys, but the pulleys that not clutched will be free from the motor and locked against the random motion(braked),

In figure (9): a group of small pulleys(l), a group of big pulleys (2), the motor drives one group of them only, the two groups of wires(3), cars in the right branch (7),(8),(9), cars in the left (4),(5),(6).

Electronic circuits:

The electronic circuit in the car is just a board, no any connection, only the negative and positive terminals of the electric power, so if it is not working, it is easy to replace by a new one after giving it its ID, then sent the defective one to the workshop to repair.

The electric power: The car has a lamp and a fan and a switch for each one of them, the car takes its power using brushes or using the carrying tool (wire or chain), there is a rechargeable battery inside the car to feed the electronic board and the lamp and the fan in case of no power in the building or failure of taking the power by the brushes or wire or chain.