Title of Invention

DRIVE FOR ROPE DRIVEN PASSENGER ELEVATORS

Abstract A drive for rope driven passenger elevators is disclosed which is of especially flat construction. The length of the transmission output shaft 16 with the drive disk 4 positioned thereon thereby corresponds essentially to the diameter of the motor 1 colU1ected Vioith the housing 7 of the transmission 3 through the housing bell 6 of the clutch 2. No pro1111ding components can thereby intenupt or influence in any way the operation of a rope driven passenger elevator with the advantageous drive, when this drive is positioned in a space saving manner on the vertical wallS of an elevator shaft
Full Text

Drive For Rope Driven Passenger Elevators
The invention relates to a drive for rope driven passenger elevators consisting of a motor, a clutch/brake, a gear box and a drive disk. Such a drive for rope driven passenger elevators is installed in a machine room at the head or at the foot of an elevator shaft on a horizontal surface.
Previous drives have the significant disadvantage that the drives are of large construction and can therefore not be placed in a restricted spaced such as an elevator shaft.
It is an object of the invention to develop a drive for a rope driven passenger elevator which is of simple and compact construction and can be installed in restricted space.
This object is achieved typically by the characterizing features of claim L Preferred embodiments of the invention are defined in the dependent claims.
It is thereby especially advantageous, that the drive is of such flat construction that it can be installed on the side wall of an elevator shaft without requiring additional space. The machine room at the head or the foot of the elevator shaft for the otherwise conventional installation of the drive can thereby be completely obviated. This is especially advantageous in connection with the subsequent installation of rope driven passenger elevators in houses or especially in old buildings in which often insufficient space is available for an additional machine room.
Further details and advantages of the invention are further described by way of a preferred embodiment illustrated in the drawing. It shows:
Figure 1 the front view of a drive in accordance with invention in partial cross-section; and


In Figure 1, the main components of the drive with motor 1,clutch/brake 2, gear box 3 and drive disk 4 are positioned vertically above one another in compact construction as an integral unit or machine. Motor 1 is a so-called flange motor, which should preferably be a three phase AC motor. To save space, the motor 1 is bolted directly to the housing 7 of the gear box 3 through a housing bell 6 of the clutch 2,
The clutch 2 is a break through resistant clutch, preferably a bolt coupling with elastic buffers 17. In the clutch portion 8 positioned on the motor side, the break through resistant clutch preferably includes pre-tensionable buffers "17 which limit the amount of looseness on reversal but nevertheless provide a good damping. The coupling portion 9 directed towards the gear box which is constructed as a brake drum is mounted on a transmission input shaft 11. Both clutch portions 8,9 are positioned within the housing bell 6. A conventional electromechanical break actuator 10 is also mounted on the housing bell 6.
The transmission 3 which is directly connected with the housing bell 6 of the clutch 2 by way of the housing 7, includes the transmission input shaft 11, which is constructed as a worm shaft and drives a worm gear 12 of the transmission 3, which, wonn gear is fixed on an intermediate shaft 13 of the transmission 3.
As is apparent from Figure 2, the intermediate shaft 13 of the transmission 3 carries a fixed beveled spur gear pinion 14 which drives a spur gear 15. The spur gear 15 is positioned on a transmission output shaft 16 of the transmission 3, which on the output side carries the drive disk 4 for the elevator ropes.
The transmission 3 is preferably a worm — spur gear transmission which combines the positive properties of two gear systems. The high transmission spectrum, the high tooth

brake resistance at nominal load, the angular construction, the vibration free operation and the low noise level are taken over from the worm gear transmission. On the other hand, the spur gear stage transmits high torque within a small space and guarantees high efficiency even at low rotation speeds.
Due to the compact integral manner of construction of the advantageous drive, it is possible to position the drive in the restricted space of an elevator shaft on a vertical wall 5, without interrupting the operation of the elevator or requiring additional space.
As is further apparent from Figure 2, the integral components consisting of motor 1, clutch/brake 2, transmission 3 and drive disk 4 arc aligned with one another in such a way that a planar surface is created on the front and back surfaces of the drive respectively, between which the integral components are positioned one above the other and within a compact space.
The length of the transmission output shaft 16 with the drive disk 4 positioned thereon thereby corresponds essentially to the diameter of the motor 1 which is bolted to the housing 7 of the transmission 3 through the housing bell 6 of the clutch 2. No protruding components can thereby interrupt or influence in any way the operation of a rope driven passenger elevator with the advantageous drive, when the drive is positioned in a space saving manner on the vertical wall of an elevator shaft.



1. Drive for a rope driven passenger elevator, consisting of a motor (1), a clutch/brake (2), a transmission (3) and a drive disk (4), characterized in that the motor (1), the clutch/brake (2), the transmission (3) and the drive disk (4) form an integral unit or machine.
2. Drive according to claim 1, characterized in that the motor (1) is directly connected with the housing (7) of the transmission (3) through a housing bell (6) of the clutch (2).
3. Drive according to claim 1, characterized in that the motor (1) is a flange motor and that the motor (1) is a conventional three phase motor.
4- Drive according to claim 1, characterized in that the clutch (2) is constructed as a bolt clutch and that the clutch portion (8) on the motor side includes pre-tensionable buffers.
5. Drive according to claim 4, characterized in that the clutch portion (8) on the motor side and the coupling portion (9) on the transmission side which is mounted on a transmission output shaft (11) of the transmission (3) are positioned inside the housing bell (6).
6. Drive according to claim 5, characterized in that the transmission input shaft (11) of the transmission (3) is constructed as a worm gear shaft, that the transmission input shaft (11) engages a worm gear (12) of the transmission (3) and that the worm gear (12) is positioned on an intermediate shaft (13) of the transmission (3).

7. Drive according to claim 6, characterized in that a beveled spur gear pinion (14) is fixed on the intermediate shaft (13) of the transmission (3), that the beveled spur gear pinion (14) engages a spur gear (15) of the transmission (3) and that the spur gear (15) is positioned on a transmission output shaft (16) of the transmission (3).
8. Drive according to claim 7, characterized in that the drive disk (4) for the elevator ropes is positioned on the output side of the transmission output shaft (16) to be flush with the couplingtorake (2) and the motor (1).
9. Drive according to claim 1, characterized in that the integral components consisting of motor (1), clutch/break (2), transmission (3) and drive disk (4) are flush with one another so that a planar surface is created of the front and rear sides of the drive respectively and that the integral components are positioned one above the other between the surfaces.
10. Drive according to claim 9, characterized in that the length of the transmission output
shaft (16) with the drive disk (4) positioned thereon essentially corresponds to the
diameter of the motor (1) connected with the housing (7) of the transmission (3)
through the housing bell (6) of the clutch (2),

11. Drive for a rope driven passenger elevator, substantially as hereinabove described and illustrated with reference to the accompanying drawings.


Documents:

838-mas-2000-abstract.pdf

838-mas-2000-assignment.pdf

838-mas-2000-claims duplicate.pdf

838-mas-2000-claims original.pdf

838-mas-2000-correspondance others .pdf

838-mas-2000-correspondance po.pdf

838-mas-2000-description complete duplicate.pdf

838-mas-2000-description complete original.pdf

838-mas-2000-drawings.pdf

838-mas-2000-form 1.pdf

838-mas-2000-form 26.pdf

838-mas-2000-form 3.pdf

838-mas-2000-form 5.pdf

838-mas-2000-other documents.pdf


Patent Number 207298
Indian Patent Application Number 838/MAS/2000
PG Journal Number 26/2007
Publication Date 29-Jun-2007
Grant Date 04-Jun-2007
Date of Filing 04-Oct-2000
Name of Patentee M/S. FLENDER TUBINGEN GMBH
Applicant Address BAHNHOFSTRASSE 40-44, 72072 TUBINGEN.
Inventors:
# Inventor's Name Inventor's Address
1 LUDGER PUTTMANN SONNENSCHEINSTR 14,46395 BOCHOLT.
PCT International Classification Number B66B11/04
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 199 48 584.4 1999-10-08 Germany