KR100824823B1 - Elevator car guiding device for an elevator without machine room - Google Patents

Abstract

The present invention relates to an elevator car (3) guide device for an elevator having a drive motor (5) mounted on the upper sidewall of a shaft without a machine room, the elevator car (3) being integral with the elevator car and having a car guide rail ( The upper car guide element 9, guided by opposing upper and lower guide elements 9, which slides or rolls in 11, and which is stationary at the vertical projection of the drive motor 5 or the bracket of the drive motor, is at least opposed. Attached to the car 3 at a lower level than the guiding element 9 so that the upper portion 29 of the car can stop at the shaft 7 at a high height such that it can stop against the drive motor 5 or the bracket of the drive motor. It is characterized by enabling the translational movement of the car 3.

Description

Elevator car guide device for elevators without machine room {ELEVATOR CAR GUIDING DEVICE FOR AN ELEVATOR WITHOUT MACHINE ROOM}

The present invention relates to an elevator car guide apparatus for an elevator that does not include a machine room.

It is known that the slide guide element of the elevator car on the car guide rail is typically positioned to face each other at the same height, at the same height, to provide a maximum distance between the centerlines of the guide members. However, in an elevator without a machine room, the upper slide guide element of the car on the side of the drive motor is characterized in that the laterally protruding element has a vertical projection of the motor or the bracket of the motor. It may also stop, thus limiting the displacement of the car at the height of the shaft.

1 is a perspective view of a car frame with guide slides.

2 is a front view showing the assembly of the car slide offset in height on the transverse beam.

3 is a sectional view of the shaft showing the position of the car at the top level of the shaft.

The present invention aims to rectify this drawback, and provides an elevator car guiding device for an elevator without a machine room, in which a drive motor is mounted on top of the car guide rail of the shaft, the elevator car being integral with the elevator car and The upper car guide element, guided by the opposite upper and lower guiding elements, which slide or roll, and which is stationary in the vertical projection of the bracket of the drive motor or the drive motor, is attached to the car at least at a lower level than the opposite guide element, It is characterized in that the upper part enables the translational movement of the car on the shaft at a higher height which can stop against the drive motor or the bracket of the drive motor.

The downward height offset of the upper guide element on the motor side is about 0.2 to 0.5 m with respect to the height of the opposing upper guide element such that the reduced distance between the centerlines, which is 2.2 to 3 m depending on the car size, compared to the conventional vertical center line distance The guide is small and remains unchanged as in the conventional form on the opposite side with little effect on the guidance of the elevator car on the motor side.

The offset also includes a distance margin D that can compensate for any abnormal car overtravel.

This arrangement according to the invention has the effect that the car can be moved to an upper level having a height close to the top of the elevator shaft so that it does not have to be made higher.

The guide element can be a roller guide rolling on a car rail or a slide with a U-shaped recess for slidingly receiving a corresponding car guide rail.

The offset guiding element is advantageously mounted on a transverse beam attached to the prop of the car frame or arch, the transverse beam having recesses or inner deformations at the height of the guiding element so that the element is possible from the side of the elevator car. One less protrusion.

The invention also relates to an elevator comprising a car guide device as defined above by the invention.

The present invention has an exemplary embodiment with reference to the accompanying drawings and is described below.

The figures, in particular Figures 1 and 3, respectively show the arch 1 of the car of an elevator without a machine room, with the car 3 and counterweights arranged on the top and sides of the shaft 7 on the upper side. It is driven by the motor 5 (refer FIG. 3). The motor 5 is compact and has a longitudinal shape along the side of the shaft and horizontally, but its vertical projection impinges on the area of the car guide slide 9 on the motor side.

The motor 5 is mounted on the top of the car guide rail 11 and on top of two opposing counterweight rails 13 on which counterweights slide on the same side (not shown) therebetween.

The elevator car 3 supports four guide slides 9 arranged in the same vertical plane of the car, two at the top and two at the bottom. Such a slide 9 having a conventional U-shaped cross section slides on two car guide rails 11 facing each other on either side of the car. The lower slide 9 is typically attached to the vertical skirt 15 of the car frame platform and faces each other at the bottom of the car (and at the same height).

In addition, the slide 9 opposite the upper slide 9 on the motor side is usually mounted at the upper end of the elevator car in the upper transverse beam, which is mounted at its end on the strut 19 of the car arch.

The upper slide 9 on the motor side is offset downward by about 0.4 m with respect to the opposing slide, and offset downward relative to the conventional position at the upper end of the elevator car.

The offset, which is about 2,2 m in this case, is small compared to the conventional centerlines distance of the slides and has little effect on the quality of the car guidance as compared to the induction with slides spaced as in the prior art.

The slide 9 which is offset from the height is mounted to its transverse beam 21 with its end attached to the car arch strut 19 at a predetermined height.

The transverse beam 21 is bent (see FIG. 2) to form an inner recess 23 that receives the slide. The recess 23 bounded by two inwardly inclined vanes 25 is flat and receives the slide at the length of the recess at various points along the length of the recess depending on the position of the slide of the car. can do. The inwardly pivoting wall of the transverse beam is located adjacent to the panel 27 of the car which limits the depth of the inner recess. Such a recess 23 can reduce the outward projection of the slide outside the car, thereby reducing the cross-sectional area of the shaft and bringing the corresponding guide rail 11 close.

Because of this offset configuration at the height of the slide, the car can ascend to the upper level at the position where the upper portion 29 (beam) stops against the motor 5, as shown in FIG. It is possible to ascend within a short distance from the shaft ceiling 31 without disturbing this rise of the car. The distance clearance D between the slide and the motor, for example 0.15 m, must be provided to account for any car rebound or drive failure that causes the car to move beyond the normal limit.

The slide 9 can be clearly replaced by a roller guide element that is rolled on the car guide rail.

Claims (7)

An elevator car guide device for an elevator having no machine room and a drive motor mounted on an upper portion of a guide rail, The elevator car is guided by opposing upper and lower guide elements which are integral with the elevator car and which slide or roll on the car guide rails, The guide device comprises an upper car guide element disposed on the same side as the drive motor or bracket of the drive motor,  The upper car guiding element is attached to the car at a lower level than the opposing guiding element, the elevator car guiding device for the elevator, which enables translational movement of the car to the upper level in the shaft. The method of claim 1, wherein the downward height offset of the upper guide element on the motor side is about 0.2 m to 0.5 m relative to the height of the opposing upper guide element such that the reduced distance between the centerlines compared to the conventional vertical center line distance Elevator car guide device for elevators of about 2.2m to 3m. 3. The elevator car guide apparatus of claim 2, wherein the offset also includes a distance margin D to account for any abnormal car overtravel. The elevator car guide apparatus according to claim 1, wherein the guide element is a slide having a U-shaped recess for slidingly receiving a corresponding car guide rail. The elevator car guide apparatus according to claim 1, wherein the guide element is a roller guide which rolls on a car guide rail. The elevator car guide apparatus of claim 1, wherein the guide element is mounted to a transverse beam attached to a strut of a car frame or arch, the transverse beam having a recess or inner deformation at the height of the guide element. An elevator comprising a guide device as defined in claim 1.