JP2992219B2 - Traction sheave elevator and hoisting device - Google Patents

Abstract

Traction sheave elevator consisting of an elevator car moving along elevator guide rails, a counterweight moving along counterweight guide rails, a set of hoisting ropes (3) on which the elevator car and counterweight are suspended, and a drive machine unit (6) driving a traction sheave (7) acting on the hoisting ropes (3) and placed in the elevator shaft. The drive machine unit (6) is of a flat construction. A wall of the elevator shaft is provided with a machine space with its open side facing towards the shaft, the essential parts of the drive machine unit (6) being placed in said space. The hoisting unit (9) of the traction sheave elevator consists of a substantially discoidal drive machine unit (6) and an instrument panel (8) mounted on the frame (20) of the hoisting unit. <IMAGE>

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an elevator car traveling along an elevator guide rail, a counterweight traveling along a counterweight guide rail,
A traction comprising a set of hoisting ropes having an elevator car and counterweight suspended within an elevator shaft thereon, and a drive mechanical device disposed within the elevator shaft and driving a traction sheave acting on the hoisting ropes. Regarding sheave elevator. The invention also relates to a hoisting device for a traction sheave elevator. Furthermore, the present invention relates to a mechanical space for a traction sheave elevator.

[0002]

BACKGROUND OF THE INVENTION One of the goals in elevator development is to achieve efficient and economical space utilization.
In a conventional traction sheave drive elevator, the machine room or other space for the drive machine occupies a significant portion of the building space required for the elevator.

[0003]

The problem is not only in the volume of space required for the elevator, but also in its location in the building. Although there are various solutions for machine room arrangements, they generally have significant constraints on building design, at least in space utilization or appearance. For example, in the case of a so-called side-drive elevator having a machine room below, a machine room or space is needed below or beside its shaft, generally on the lowest floor of the elevator installation. With special space, the machine room generally adds to the cost of the building.

[0004] To meet the need to achieve a reliable elevator with efficient space utilization at economical cost, the building space required for the elevator, regardless of the hoisting height, substantially reduces the safety distance. Initially, a new type of traction sheave elevator was invented for elevator cars and counterweights, which is limited to the space required for their passage and the space required for the passage of the hoisting rope, but which avoids the problems and disadvantages mentioned above As a proposal.

[0005]

SUMMARY OF THE INVENTION In a traction sheave elevator according to the invention, the drive mechanical device is flat in the direction of the drive shaft of the traction sheave, the wall of the elevator shaft has a mechanical space, It is characterized in that the main part of the drive mechanism is arranged therein.

The hoist according to the present invention is characterized in that a disk-shaped driving device and a machine disk are attached to a frame of the hoist.

[0007] The machine space of the present invention is defined by the plane of the wall facing the elevator shaft and the plane of the wall facing outward from the elevator shaft in the direction of the wall thickness. It is characterized by the following.

[0008]

An elevator car running along an elevator guide rail, a counterweight running along a counterweight guide rail, a set of hoisting ropes suspending the elevator car and the counterweight thereon, and a winding In a traction sheave elevator comprising a drive mechanical device acting on an upper rope and driving a traction sheave disposed in an elevator shaft, the drive mechanical device has a flat structure. A wall for the elevator shaft is provided with a mechanical space whose opening side faces the shaft, and a main part of the drive mechanical device is disposed in this space. The hoisting device of a traction sheave elevator is configured by attaching a substantially disk-shaped drive mechanical device and a machine disk to a frame of the hoisting device.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a hoisting device 9 for a traction sheave elevator provided by the present invention. The device in this figure is a hoisting device of a traction sheave elevator having a machine below, and a hoisting rope 3 goes upward from a traction sheave 7 of a hoisting machine 6. In the case of an elevator with the machine at the top, the rope will go down.
The hoisting machine 6 is fixed to the support 20 of the hoisting device,
Is preferably of a frame-like design. flame
Also mounted on 20 is a machine panel 8 which has the elevator control and the equipment necessary for controlling and supplying power to the electric motor incorporated in the hoisting machine 6.
The hoisting machine 6 is disk-shaped and its diameter is relatively flat in the direction of the traction sheave shaft. The traction sheave 7 projects from the disk hoisting machine 6 into the shaft space. A brake 14 is mounted on the circumference of the hoisting machine 6. An elevator machine which can be used as the hoisting machine 6 is described, for example, in Finnish Patent Application No. 941599. Since such machines do not require a large amount of machine space, they can be easily installed in openings in the wall or in holes made in the wall facing the shaft. The preferred thickness of the hoisting device 9 is about
10 centimeters, or slightly more. The traction sheave 7 is not included in this thickness. The hoisting device 9 having a thickness of 10 cm can be easily accommodated in a normal elevator shaft wall. This is because typical wall thicknesses are at least about 15 cm for both concrete and brick walls.

FIG. 2 shows an elevator to which the present invention is applied, which has a machine below, and a hoisting device 9 is arranged at the side of the shaft and below the shaft. The main part of the elevator machine 6 is mounted in a space which is maximally limited by the wall thickness of the elevator shaft 17, i.e. in the opening 15 of the wall,
This opening opens into the shaft space and is closed from outside by a door 16 to prevent unauthorized entry into the machine or the shaft through the opening 15. On the shaft side, this opening may be provided with a safety net or glass or the like, so that a person, for example, can never reach into the shaft space through the device of the opening. Generally, it is not appropriate to completely close the machine space 15 from the shaft side. This is because, with regard to ventilation of the machine space 15, an advantageous solution is to ventilate the machine space via a shaft. However, in some cases, closing the mechanical space on the shaft side is necessary, for example, to stop the propagation of noise. In such a case, the mechanical space 15 is closed on the shaft side except for the entrance required for transmitting power to the traction sheave 7 and for other purposes. In any case, the machine space 15 has a depth that does not exceed the thickness of the wall of the elevator shaft 17. From a hoisting machine 6 incorporated in the hoisting device, a traction sheave 7 for moving a hoisting rope 3 (indicated by broken lines) protrudes into a shaft 17. This figure shows a portion of the hoisting rope that passes below the car 1 to the direction change pulleys 4 and 5 and a portion that goes down from the upper portion of the shaft 17 to the traction sheave.

FIG. 3 shows an arrangement in which the main components of an elevator having a machine below are projected onto a cross section of an elevator shaft 17. The elevator car 1 runs along an elevator guide rail 10 and the counterweight 2 runs along a counterweight guide rail 11. The hoisting machine 6 and the machine board 8 are arranged in openings in the wall of the elevator shaft 17. The traction sheave 7 projects into the shaft 17 from the hoisting machine 6 and also through the opening 15. A transfer pulley 12, located at the top of the shaft, guides the passage of the hoisting rope. One of the transfer pulleys 12 guides the hoisting rope from the traction sheave 7 to the transfer pulley 13, on which the counterweight 2 is suspended, from which the hoisting rope is further suspended at the top of the shaft. Go to the fixed rope mooring section. Another conversion pulley 12 guides the hoisting rope from the traction sheave 7 to the conversion pulleys 4 and 5 attached to the car 1, thereby suspending the elevator car 1 on the hoisting rope, from which the rope is further shafted. Go to the fixed rope mooring section at the top. In the figure, the hoisting rope is shown in cross section on the traction sheave and the conversion pulley, otherwise the rope is not shown. On each floor, a door opening 18 for a floor door is provided on the wall of the elevator shaft 17. The elevator car 1 is provided with a corresponding door opening 19. Elevator car 1
If a door is provided, the door opening 19 is closed by the car door.

FIG. 4 is a schematic diagram showing an elevator having a machine at the top and implemented in accordance with the present invention. Hoisting device 9
Are located on the side of and above the elevator shaft 117. The elevator machine 6 includes an elevator shaft 11
It is mounted in an opening 115 in the wall 7. This opening opens toward the shaft and is closed by a door 116 from outside the shaft. From a hoisting machine 6 incorporated in the hoisting device, a traction sheave 7 for moving a hoisting rope 103 (indicated by broken lines) protrudes into a shaft 117. The figure shows the conversion pulleys 104 and 105 under the hoisting rope car 101.
And the part running from the traction sheave to the counterweight.

It will be apparent to those skilled in the art that various embodiments of the present invention are not limited to the examples described above, but may be modified within the scope of the appended claims. For example, the placement of the car and counterweight in the shaft is not critical. It will also be clear to the person skilled in the art that the drive shaft of the traction sheave can also be provided with support on the side facing the shaft, for example by using a support beam attached to the frame of the hoisting machine. . Further, those skilled in the art know that the traction sheave incorporated into an elevator machine is not necessarily a fixed part of the machine, but a component that does not need to be mounted on its drive shaft until the elevator installation is underway.

[0015]

Various advantages can be achieved by applying the present invention, including the following. According to the traction sheave elevator of the present invention,
Clear space savings can be achieved in the building because no separate machine room is required. -Elevator machines can be assembled at the factory and pre-tested, making elevator installation cheaper. -Practical application of the invention does not require significant changes in elevator design or manufacture. The accessibility of the machine for maintenance or emergencies is not substantially different from that of conventional elevators, because the machine and the machine board are within reach.

[Brief description of the drawings]

FIG. 1 is a schematic view of a hoisting device used in the present invention.

FIG. 2 is an illustration of an elevator having a machine below it in which the invention is used.

FIG. 3 is a layout view in which main components of an elevator to which the present invention is applied are projected on a cross section of an elevator shaft.

FIG. 4 is an illustration of an elevator having a machine implemented thereon in accordance with the invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 101 Elevator car 2 Counterweight 3, 103 Hoisting rope 6 Drive mechanical device 7 Traction sheave 10 Elevator guide rail 11 Counterweight guide rail 15, 115 Machine space 17, 117 Elevator shaft

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Esco Aulanko Finland 04230 Keraba, Kaenkatu 6C 33 (56) References JP-A-51-139044 (JP, A) JP-A-62-230587 (JP, A) JP-A-7-137962 (JP, A) JP-A-7-144857 (JP, A) JP 1-30467 (JP, Y2) US Patent 5,018,603 (US, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) B66B 11/04-11/08 B66B 7/00

Claims (7)

(57) [Claims] 1. An elevator car traveling along an elevator guide rail, a counterweight traveling along a counterweight guide rail, and a set of the elevator car and the counterweight suspended above the elevator car in an elevator shaft. A hoisting rope, and a drive mechanical device disposed in the elevator shaft and driving a traction sheave acting on the hoisting rope, wherein the drive mechanical device is arranged in the direction of the drive shaft of the traction sheave. Flat,
Machine space inside the elevator shaft wall itself
A traction sheave elevator, wherein the traction sheave elevator is housed , and a main part of the driving mechanical device is arranged in the machine space. 2. The traction sheave elevator according to claim 1, wherein the mechanical space comprises an opening in a wall of an elevator shaft, the opening opening toward the shaft, and a door or an entrance door from outside. A traction sheave elevator characterized by being closed by: 3. The traction sheave elevator according to claim 1, wherein the drive mechanical device is provided with a mechanical panel of a motor for driving the traction sheave, and the mechanical panel controls and supplies power to the elevator. possess the necessary equipment, a traction sheave elevator, characterized in that the machine plate is to preferably is integrated with the drive machine unit as a single assembly. 4. The traction sheave elevator according to claim 1, wherein the drive mechanical device is arranged in a lower part of the elevator shaft on a side of the elevator shaft. Sheave elevator. 5. The traction sheave elevator according to claim 1, wherein the drive mechanical device is disposed in an upper part of the elevator shaft, beside the elevator shaft. Sheave elevator. 6. The traction sheave elevator according to claim 1, wherein a glass safety net or other protection element is arranged in the machine space on the side facing the elevator shaft. A traction sheave elevator characterized by the following. 7. A hoisting device for a traction sheave elevator, wherein the hoisting device is provided on a wall of an elevator shaft.
Located within the opening and housed within the thickness of the shaft wall
The hoisting device is mounted on a frame of the hoisting device.
Thickness of the hoisting device in the direction of the wall of the shaft, having a disk-shaped driving device and a machine disk
Does not exceed the thickness of the walls of the elevator shaft and is substantially
Only the traction sheave or its drive shaft
A hoisting device protruding from the hoisting device into the shaft .