Elevator system, with two emergency safety brake devices and a shock-proof system

Abstract

An elevator system consisting in a platform steel floor fixed to four bogeys guiding the descent or ascension of the platform onto the two steel H beam or steel linear motion track profiles. The elevator is operated by a remote or pad control transmitting signals with a wire or with a wireless frequency signals to a motorised mechanical engine or electric winch at the ground level of structure, if not being manually operated and controlled. The motorised mechanical engine or electric winch unrolls one or a set of normal operation cables to allow the descent of the elevator platform and the sliding o f t he bogeys along the lateral guiding tracks. The motorised mechanical engine or electric winch rolls the set of normal operation cables to allow the ascension of the elevator platform and the sliding of the bogeys along the lateral guiding tracks. The set of operating cables drives a fixed pulley on a driving steel shaft at the top of the structure or elsewhere on the elevator system. On the driving steel shaft is also there one or many steel drums or pulleys to allow unrolling and rolling of a second independent steel cable standing for a first emergency safety brake device activated by one or many inertia brakes which stops rotation on steel shaft at excessive speed rotation of steel shaft if a fracture or breaking happens on the set of operating cables and engage the free falling of the elevator platform. The set of safety cables is attached to steel hooks fixed to the shock-proof steel plate attached underneath the elevator platform by compression springs and guided by steel rods inserting steel bushings. The shock-proof safety steel plate is retained by two fixed steel cables attached to elevator platform and to a steel hook half ring or U-Bolt mounted on the shock-proof safety steel plate.

The second emergency safety brake device is engaged when the two spur gears collides together after the compression of the springs or of any other kind of shock absorber when the set of safety cables ask to stop the free felling of the shock-proof steel plate and because the two opposite spur gears are taking two different directions onto the steel gear track or gear rack with teeth and also having then two different rotation direction; one spur gear is going down and the other spur gear is stopping its rotation. When the emergency break is applied for the elevator to stop its free falling, the safety trap on elevator floor can be lifted manually and be blocked by engaging the retainer steel arm in the corner steel angle and sided steel plate to allow the person to evacuate by the ladder bars fixed on the structure and the ladder bar underneath safety trap.

Claims

1. An elevator system, having two emergency safety brake devices and a shock absorption system, totally independent to the normal operation, manually or from a motorised mechanical engine or electric winch, first said emergency safety brake device, being a centrifugal inertia brake (4) or a set of centrifugal inertia brakes, not using friction, but blocking suddenly its rotation at an excessive speed on the steel shaft (5) of the inertia brake induced or brought by an excessive unrolling speed of the emergency safety cables (41) on its shaft (5) and pulley or drum (3), in case of the free falling or malfunction of the elevator platform (15); the second emergency safety brake is designed to avoid the elevator platform (15) to get an upward jump while and after first emergency brake being applied and shock absorber accumulating or releasing the energy of the sudden blocking of first emergency safety brake, said first emergency inertia brake device engaging a locking system as sprockets, gears, solenoids, electric coils and springs but not using friction disks; the elevator system, having at least two totally independent sets of cables, made out of steel or other material, first sa id set of cables standing only for the normal operation cables (28) of the elevator system and the other said set of cables standing only for the emergency safety cables (41), made out of steel or other material; the elevator system, having a shock absorber standing for a shock -proof system for the elevator platform (15) composed of compression springs (20) or other kind of springs or by air or fluid pressure tube shock absorber to absorb the gravity force of the sudden blocking of the inertia brake and of the stop of unrolling of the safety cables, said shock absorber being on the elevator platform (15) itself or elsewhere on the elevator system; the elevator system, being operated manually or by wired or wireless frequency signals from a remote (29) or pad control to a motorised mechanical engine or electric winch (27).

2. An elevator system, as defined in claims 1, having the second emergency safety brake composed of two gears (16) (19) colliding together on their run onto the gear rack or track (13) to avoid an upward jump of the elevator platform (15) and also to avoid the inertia brake (4) to release its blocking status engaged when a shock absorber for the elevator platform is absorbing the energy of the sudden stop of the free falling of the elevator platform (15).

3. An elevator system, as defined in claim I, having lateral guiding tracks (9) using H beams or linear motion track profiles, made out of steel, aluminum, other metals, PVC (Polyvinyl Chlorate) or any other plastics or even made out of wood and having the ladder bars (40) attached or not to the lateral guiding tracks (9).

4. An elevator system, as defined in claim 2, having a gear track or gear rack with teeth (13) made out of steel, aluminum, other metals, PVC (Polyvinyl Chlorate) or any other plastics or even made out of wood.

5. An elevator system, as defined in claim 1, having an elevator platform floor (15), the safety ramp (38) and its ramp bars or plates (37) made out of steel aluminum, other metals, PVC (Polyvinyl Chlorate) or any other plastics or even made out of wood.

6. An elevator system, as defined in claim 1, having rollers (11) of the bogeys (10) and/or bogeys (10) made out of steel, aluminum, other metals, PVC (Polyvinyl Chlorate) or other plastics such as UHMW or rubber or tires or even made out of wood or out of any other element or compound.

7. An elevator system, as defined in claim 1, having ladder bars (40) and (24) made out of steel, aluminum, other metals, PVC (Polyvinyl Chlorate) or other plastics such as UHMW or even made out of wood.

8. An elevator system, as defined in claim i, having rods (21) and bushings (22) made out of steel, aluminum, other metals or PVC (Polyvinyl Chlorate) or other plastics such as UHMW or even made out of wood.

9. An elevator system, as defined in claim 1, having bumpers (8) at the end of guiding tracks, made out of rubber or any other element or compound, or having springs as compression springs or other kind of shock absorbers made out of steel or other metals or even made out of plastics of any kind, or having both bumpers (8) and springs together used in the elevator system for the ending limit movement of the elevator.

Description

BRIEF DESCRIPTION OF DRAWINGS/FIGS.

[0026] Figures listed below are titled on top of each FIG. showed.

[0027] FIG. 1 is a frontal view of the elevator system

[0028] FIG. 2 is a top aerial view of the elevator platform

DETAILED DESCRIPTION OF DRAWINGS WITH REFERENCES

[0029] FIG. 1 is a Frontal View of the Elevator System for a High Structure,

[0030] The elevator platform floor (15) made of checker steel plate, the safety steel ramp (38) and the steel ramp bars or plates (37) are attached to four bogeys (10) with rollers (!!) or balls by steel union plates (39) and by steel corner brackets (14). The bogeys (10) slides downward or upward onto the two lateral guiding devices (9) made of steel H beams or steel linear motion track profiles fixed on the structure by welded steel plates (45) to the guiding device (9) and bolted or attached by welding to the structure. The elevator platform (15) is then operated and controlled by a wireless or wired frequency remote or pad control (29) transmitting signals for operation to the controlled motorised mechanical engine or electric winch (27) at ground level. When the motorised mechanical engine or elective winch (27) unrolls the operating steel cable (28) it allows the elevator platform (15) to go downward and when the electric winch (27) rolls the operating steel cable (28) it allows the elevator platform (15) to go upward. Rubber bumpers and/or compression springs (8) are fixed to the structure on mounted blocks (7) at ends of the guiding steel 11 beams or guiding steel linear motion track profiles (9) to stop the sliding of bogeys (10) and of the shock-proof safety steel plate (23). Fixing steel plates (12) are tightened with screws or bolts to the steel gear track or gear rack with teeth (13) and attached to ladder bars (40) by steel hooks half rings or U-Bolts (42). The operating steel cable (28) attached to the elevator steel floor (15) by a steel hook half ring or U-Bolt (42) also drives a fixed pulley (2) on driving steel shaft (5) and also drives the steel drum (3) which unrolls the same free length of the safety steel cable (41) when elevator platform (15) is going downward and rolls the same length of the safety steel cable (41) when elevator platform (15) is going upward. The operating steel driving shaft (5) at the top of the structure is allowed to rotate free inside two distant sided pillow block, bearings (1) mounted on mounted blocks (6). The use of an inertia brake (4) will stop the rotation of the operating steel shaft (5) when excessive speed rotation is happening in case of the fracture or breaking of the operating steel cable (28) and the free frilling of the elevator platform (15) demanding acceleration of the unrolling of the safety steel cable (41) on its shaft. The stop of the rotation of safety shaft, for inertia brake (5) will stop unrolling the safety steel cable (41) and then engaged the shock-proof safety steel plate (23) attached to the safety steel cable (41) by steel hook half ring (25) and by steel cable clamps (26) to stop its descent onto the steel gear track or gear rack with teeth (13) and stop the rotation of the spur gear (19) attached to steel shaft (18) and steel corner brackets (17) fixed to shock-proof safety steel plate (23). Since the elevator platform (15) will continue to go downward, the compression of any kind of shock absorber here designed as springs (20) will compress and absorb the shock and then steel rods (21) will insert the steel bushings (22) allowing the shock-proof safety steel plate (23) and the spur gear (19) attached to it to collide with the spur gear (16) attached to elevator platform (15). When the collision happens between the two spur gears (16) and (19), the system is locked on the steel gear track or gear rack with teeth (13) and the free falling of the elevator platform (15) is stopped and also avoid any upward jump of the elevator platform (15). Then, people taking place in the elevator can lift an emergency safety trap (33) in the elevator floor (15) and go down with ladder rung or ladder bar (24) underneath safety trap and then with ladder bars (40) fixed to the structure to get to the ground level safely. To retain the shock-proof safety steel plate (23) to fall down free, two retaining steel cables (43) are attached to elevator steel floor (15) and two steel hooks half ring or U-Bolts (44) fixed to the shock-proof safety steel plate and locked with steel cable clamps (26).

[0031] FIG. 2 is a Top Aerial View of the Elevator Platform Floor.

[0032] The main floor of the elevator (15) is made of checker steel plate. Fixed to the main floor of the elevator (15) are the steel ramp bars or plates (37) and the safety steel ramp (38). In the elevator platform floor (15) is an emergency safety trap (33) that can be lifted manually by the steel handle (32) and there is a steel arm (36) that can be released from its plastic retainer for steel arm (31) and then rotates from its fixing steel hook half ring or U-Bolt (35) to engage in the steel angle with steel side plate (34) for an anchor to steel arm (36).