JP2018052683A - elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator structure capable of sufficiently suppressing vibration of a car room even when twist vibration (vibration combining opening-direction vibration and depth-direction vibration) in a car plan view occurs.SOLUTION: An elevator vibration stopping device 21 is installed at each of the ends of a depth-direction front wall 7 side and a depth-direction rear wall 8 side of a pair of attaching members 17. A nut B27 and a nut A26 of a depth-direction adjustment mechanism 23 of the elevator vibration stopping device 21 are loosened, the protruding margin amount of an elastic block 25a is adjusted to a position where the elastic block 25a abuts against an abutment part (front wall 7), and an abutment member 25 is fixed by fastening in the order of the nut A26 and the nut B27. Nuts C22, 22 of an opening-direction adjustment mechanism 24 are loosened, the protruding margin amount is adjusted to a position where an elastic block 28a abuts against an abutment part (side wall 9) through long holes 30, 30, and an abutment member 28 is fixed by sequentially fastening nuts 22, 22.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an elevator steadying device that suppresses a swing of a cab relative to an elevator car frame.

  The elevator moves up and down the hoistway along the guide rail by suspending a car frame and a counterweight with the main rope and driving a driving device having a sheave around which the main rope is wound. A car room is placed on the car frame via a vibration isolating member (elastic member). Elevator passengers get into the cab and move to the target floor.

  In an elevator, the car frame may vibrate due to vibrations such as guide rail manufacturing accuracy and guide rail installation accuracy, or vibrations from the drive device via the main rope. When such vibration propagates to the cab, there is a risk of making passengers in the cab uncomfortable. Therefore, a general elevator has a vibration isolating member (elastic member) interposed between the car room and the car frame so that the vibration of the car frame is not propagated to the car room.

  On the other hand, since a vibration isolating member (elastic member) is interposed between the car room and the car frame, the car room and the car frame may interfere if the upper part of the car room is abnormally shaken in the horizontal direction. . Therefore, an anti-rest device is installed between the column frame (vertical column) that is a part of the conventional car frame and the upper part of the car room, so that the upper part of the car room is abnormally shaken in the horizontal direction and interferes with the car frame. (Patent Document 1).

  Patent Document 1 discloses a long hole device that is provided in a car room facing surface of a pillar frame (vertical column) of a car frame and provides a long long hole in the elevator ascending / descending direction, and is attached to the car room. In addition, it is described that the anti-vibration elastic body that can move in the axial direction within the long hole prevents the upper portion of the cab from being abnormally shaken in the horizontal direction.

JP 2010-241563 A

  However, since the steady rest is installed in the vicinity of the column (vertical column) of the car frame at the top of the car room, twisting vibration in the car plan view (vibration that combines vibration in the frontage direction and vibration in the depth direction) occurs. In this case, there is a problem that the vibration of the cab cannot be sufficiently suppressed. In the following description, the door opening / closing direction will be described as a frontage direction (X-axis direction in FIG. 1) and a direction perpendicular to the frontage direction as a depth direction (Y-axis direction in FIG. 1) in plan view.

  In addition, the position of the columnar frame (vertical column) of the car frame may vary from elevator to elevator, and the position of the steady rest must be changed. There was a problem that had to be.

  In view of the above-described problems, the present invention sufficiently suppresses the vibration of the car room even when twisting vibration (vibration in which the vibration in the frontage direction and the vibration in the depth direction are combined) occurs in a plan view of the car. It is an object of the present invention to provide an elevator that can be used and that has few ceiling variations regardless of the position of a column (vertical column) of a car frame.

  In order to achieve the above object, an elevator according to the present invention has a car room provided with an entrance / exit on one side surface, and a car frame on which the car room is placed via an elastic member, and the car frame An elevator detent device that includes a car floor support frame, a pair of vertical columns, an upper frame, and a lower frame, and is provided between the car room and the car frame and suppresses the shake of the car room. Each of the pair of vertical frames has a mounting member having a length substantially the same as the ceiling depth dimension of the cab toward the depth direction in plan view in the vicinity of the ceiling height of the cab. Among the four end portions in the depth direction, the elevator steadying device is provided at least at two diagonal positions.

The elevator steadying device includes: a support member attached to the attachment member; and an elastic body block attached to the support member and configured to abut against the abutment portion of the cab to suppress the sway of the cab. It is characterized by having.

The elastic body block and the contact portion may have an adjustment mechanism that adjusts so that the contact portion is in contact with the front opening in the plan view.

The elastic body block and the contact portion may have an adjustment mechanism that adjusts the contact in the depth direction in plan view.

Further, the contact portion is a front wall and a side wall of the elevator cab.

  According to the elevator according to the present invention having the above-described configuration, when a vibration that twists in a plan view of the car (vibration in which the vibration in the frontage direction and the vibration in the depth direction are combined) occurs, the vibration in the car room is sufficiently reduced. Can be suppressed.

  In addition, the position of the columnar frame (vertical column) of the car frame may be different for each elevator, and the position of the steadying device must be changed. There is no need to have variations.

It is a figure which shows schematic structure of the elevator which has the elevator steadying apparatus which concerns on Embodiment 1. FIG. These are the expansion perspective views of the elevator steadying apparatus which concerns on Embodiment 1. FIG. These are the enlarged plan views of the elevator steadying apparatus which concerns on Embodiment 1. FIG. These are the expansion perspective views of the elevator steadying apparatus which concerns on Embodiment 2. FIG. These are the enlarged plan views of the elevator steadying apparatus which concerns on Embodiment 2. FIG.

  Hereinafter, an embodiment of an elevator according to the present invention will be described with reference to the drawings.

<Embodiment 1>
[The whole elevator]
As shown in FIG. 1, one end of a main rope 1 is connected to a car frame 3 constituting an elevator car 2 that is one lifting body. The main rope 1 faces upward, and a hoisting machine (not shown) installed in a machine room (not shown) in a building portion above the top of a hoistway (not shown) established in the building. The other end of the main rope 1 is connected to a counterweight (not shown) which is the other lifting body.

  In the hoistway, a pair of car guide rails (not shown) and a pair of counterweight guide rails (not shown) for vertically guiding the raising and lowering of the car 2 and the counterweight are respectively laid in the vertical direction. ing.

  A pair of guide roller units (not shown) are attached to the upper and lower ends of the car 2 so as to correspond to the pair of guide rails for the car. The guide roller unit guides the car 2 in the vertical direction. Is done. Similarly, a pair of guide roller units (not shown) are attached to the upper and lower ends of the counterweight corresponding to the pair of counterweight guide rails. The weight is guided vertically. The guide roller unit may be a so-called sliding guide unit using a shoe material.

  In the elevator having the above-described configuration, when the rotational power from a motor (not shown) is transmitted to a main sheave (not shown) via a power transmission mechanism (not shown) and the main sheave is driven to rotate, the main rope 1 The car 2 and the counterweight connected to each other are guided by the car guide rail and the counterweight guide rail, respectively, and move up and down in the hoistway.

[Configuration of the cage]
First, the configuration aspect of the car 2 will be described. In the following description, the X-axis direction in FIG. 1 is assumed to be the frontage direction, and the Y-axis direction is assumed to be the depth direction.

    As shown in FIG. 1, the car 2 includes a car frame 3 and a car room 6.

  The car frame 3 includes a car floor support frame 16, a pair of vertical frames 15, an upper frame 13, and a lower frame 14. On the other hand, the car room 6 includes a car floor 11, a pair of side walls 9, a front wall 7, a rear wall 8, and a ceiling 10. An entrance / exit 5 is opened in the front wall 7, and the entrance / exit 5 is closed at the lower end by a door 4 guided by a car sill 12. The car room 6 is placed on the car floor support frame 16 via an elastic member 20. Note that FIG. 1 omits the elastic member on the back side in the frontage direction with respect to the paper surface.

  As shown in FIG. 1, one end of the main rope 1 is connected to the upper frame 13.

[Installation mode of elevator steady rest device]
As shown in FIG. 1, each of the pair of vertical frames 15 has an attachment member 17 having substantially the same length as the depth dimension of the ceiling 10 in the depth direction in plan view in the vicinity of the ceiling height of the cab 6. In FIG. 1, the attachment member 17 is C-shaped steel. Note that the mounting member 17 may be a steel material having another cross-sectional shape such as angle steel, and it goes without saying that the material of the mounting member 17 is not limited to a steel material.

  The depth direction front wall 7 side end of the mounting member 17 and the depth direction front wall 7 side end of the car floor support frame 16 are connected by a front pillar 19. On the other hand, the depth direction rear wall 8 side end of the mounting member 17 and the depth direction rear wall 8 side end of the car floor support frame 16 are connected by a rear column 18.

  The elevator steadying device 21 is installed at the depth direction front wall 7 side ends of the pair of mounting members 17 and the depth direction rear wall 8 side ends of the pair of mounting members 17.

[Configuration of elevator steady rest]
The configuration of the elevator steadying device 21 will be described with reference to FIGS. 2 and 3. 2 and 3 show the elevator steadying device 21 in front of the front direction paper surface in FIG. 1 among the elevator steadying devices 21 installed at the ends in the depth direction front wall 7 of the pair of attachment members 17. Of the elevator steadying devices 21 installed at the depth direction front wall 7 side ends of the pair of mounting members 17, the elevator steadying device 21 and the pair of mounting members 17 in the depth direction in FIG. The elevator steadying device 21 installed at the end portion on the wall 8 side is the front of the elevator steadying device 21 installed at the end portion in the depth direction front wall 7 of the pair of attachment members 17 on the front side in the front direction in FIG. Since the configuration is the same as that of the elevator steadying device 21, the description thereof is omitted. In FIG. 1, the elevator steadying device 21 on the back side in the front direction of the paper is not shown in the elevator steadying device 21 installed at the end in the depth direction rear wall 8 side of the pair of attachment members 17.

  2 and 3, the elevator steadying device 21 includes a support member 31, a depth direction adjusting mechanism 23, and a frontage direction adjusting mechanism 24. The support member 31 includes a fixed portion 31a, a frontage direction facing portion 31b, and a depth direction facing portion 31c. The fixing portion 31a is a rectangular steel plate, and a front-facing facing portion 31b extends vertically downward from one side facing the side wall 9 of the fixing portion 31a, and a front-facing facing portion 31b made of a rectangular steel plate. A depth-direction facing portion 31c extends from one side facing the landing toward the front cab 6 side. The depth direction facing portion 31c is also made of a rectangular steel plate.

  Next, the frontage direction adjusting mechanism 24 will be described. The frontage direction adjusting mechanism 24 includes elongated holes 30 and 30 formed in the fixing portion 31 and fastening means 22 and 22. The fixing portion 31a is formed with long holes 30 and 30 penetrating in the vertical direction with the longitudinal direction parallel to the frontage direction. The fixing portion 31a is covered on the upper surface of the mounting member 17 made of C-shaped steel, and the fastening means 22 and 22 are opened at positions corresponding to the long holes 30 and 30 of the mounting member 17 through the long holes 30 and 30. It is screwed into a tap hole (not shown) and fastened. In addition, the fastening means 22 and 22 in FIG. 2 are hexagon bolts. Further, instead of the tap hole, a drill hole may be formed in the mounting member 17 and nut welding may be performed from the side opposite to the fixed portion 31a.

  An abutting member 28 is attached to the face facing the side wall 9 in the front-facing facing portion 31b. The abutting member 28 has an elastic body block 28a made of an elastic body and a threaded portion 28b made of metal extending from the elastic body block 28a in a direction away from the cage 6 in the frontage direction. The screw portion 28b has a male screw threaded around its longitudinal direction. The contact member 28 is attached by inserting a screw portion 28b from a surface facing the side wall 9 into a hole (not shown) of the front-facing facing portion 31b and fastening with a nut C29 from the opposite side to the surface facing the side wall 9. Yes. Note that the abutting member 28 may be attached by removing the threaded portion 28b and baking the elastic body block 28a directly on the front-facing facing portion 31b. In FIG. 3, the elastic body block 28a is a semi-ellipsoid, but it may be a cylinder, a truncated cone or a truncated pyramid. Further, although the abutment portion 28 is screwed with a male screw on the screw portion 28b and fastened with a nut 29, the abutment portion 28 may be fixed by welding or bonding without screwing the male screw. Furthermore, instead of the nut 29, a tapped hole may be formed in the attachment member 17 and fastened.

  Next, the depth direction adjusting mechanism 23 will be described. A contact member 25 is attached to the surface facing the front wall 7 toward the front wall 7 in the depth direction facing portion 31c. The abutting member 25 has an elastic body block 25a made of an elastic body and a screw portion 25b made of metal extending from the elastic body block 25a in the landing direction. The screw portion 25b has a male screw threaded around its longitudinal direction. The contact member 25 is screwed into the tapped hole (not shown) of the depth direction facing portion 31c from the surface side facing the front wall 7, and the nut A26 and the nut A26 from the surface opposite to the surface facing the front wall 7. Fastened with a nut B27. In FIG. 3, the elastic body block 25a is a semi-ellipsoid, but it may be a cylinder, a truncated cone or a truncated pyramid. The screw portion 28b is fastened with a nut by a nut A26 and a nut B27. However, other fastening means may be used as long as the protrusion of the elastic body block 25a can be adjusted and kept constant.

[Adjustment of Depth Direction Adjustment Mechanism 23 and Frontage Direction Adjustment Mechanism 24]
Next, an adjustment method of the depth direction adjustment mechanism 23 will be described. The nut B27 and the nut A26 of the depth direction adjusting mechanism 23 are loosened, and the allowance adjustment of the elastic body block 25a is performed at a position where the elastic body block 25a contacts the contact portion (front wall 7). And the contact member 25 is fixed.

  Next, a method for adjusting the frontage direction adjusting mechanism 24 will be described. Loosen the nuts C22, 22 of the frontage direction adjustment mechanism 24, and adjust the output allowance to the position where the elastic body block 28a contacts the contact portion (side wall 9) using the elongated holes 30, 30. The contact member 28 is fixed by fastening.

As described above, according to the elevator according to the present embodiment, the elevator steadying device 21 is attached to at least two diagonal positions among the four depth direction end portions of the attachment member, thereby twisting the car in plan view. Even when such a vibration (vibration in which the vibration in the frontage direction and the vibration in the depth direction are combined) occurs, the vibration in the cab can be sufficiently suppressed.
Moreover, even if the position of the columnar frame (vertical column) of the car frame is different for each elevator, there is no need to have a variation of the ceiling.

<Embodiment 2>
In the first embodiment, the abutment member 25 and the abutment member 28 are brought into contact with the front wall 7 and the side wall 9 to suppress the vibration of the cab (FIGS. 2 and 3). By causing the contact member 37, the contact member 38, and the contact member 39 in FIGS. 4 and 5 to contact the contact portion (contacted member 33), the vibration of the cab is suppressed. Basically, it is the same as that of the first embodiment except that the elevator steadying device 21 is different. Therefore, the description of the common parts is omitted or simply mentioned, and different parts will be mainly described below.

  In the second embodiment, [the whole elevator], [the configuration aspect of the car] and [the installation aspect of the elevator steadying device] are the same as those in the first embodiment, and thus the description thereof is omitted.

[Configuration of elevator steady rest]
The configuration of the elevator steadying device 21 will be described with reference to FIGS. 4 and 5. 4 and 5 show the elevator steadying device 21 in front of the front direction paper in FIG. 1 among the elevator steadying devices 21 installed at the end in the depth direction front wall 7 of the pair of attachment members 17. Of the elevator steadying devices 21 installed at the depth direction front wall 7 side ends of the pair of mounting members 17, the elevator steadying device 21 and the pair of mounting members 17 in the depth direction in FIG. The elevator steadying device 21 installed at the end portion on the wall 8 side is the front of the elevator steadying device 21 installed at the end portion in the depth direction front wall 7 of the pair of attachment members 17 on the front side in the front direction in FIG. Since the configuration is the same as that of the elevator steadying device 21, the description thereof is omitted.

4 and 5, the elevator steadying device 21 includes a support member 32, depth direction adjusting mechanisms 34 and 36, a frontage direction adjusting mechanism 35, and a contact angle 33. The support member 32 is U-shaped with an opening on the side of the cab 6 in plan view, and is made of a steel plate and fixed to the upper surface of the mounting member 17 by welding or the like (the weld bead is not shown in FIG. 4). The support member 32 has a rectangular facing portion 32b facing the side wall 9 and rectangular extending portions 32a and 32c extending from both ends in the depth direction of the facing portion 32b to the car side.
The contact angle 33 is L-shaped in plan view, is made of a steel plate, and extends from one end in the depth direction of the rectangular fixed piece 33a and the fixed piece 33a toward the direction away from the front cab 6. It has a protruding piece 33b. The contact angle 33 is formed on the side wall 9 facing the facing portion 32b so that the extending piece 33b, which is one side of the L shape, enters between the extending portions 32a and 32c of the support member 32 having a U-shape in plan view. It is fixed by welding or the like (the weld bead is not shown in FIG. 4).

  Next, the depth direction adjusting mechanism 34 will be described. The depth direction adjusting mechanism 36 has the same configuration as that of the depth direction adjusting mechanism 34 when it is symmetric with respect to the extending piece 33b, and a description thereof will be omitted. A contact member 37 is attached to a surface of the extension portion 32c facing the extension piece 33b toward the extension piece 33b. The contact member 37 has an elastic body block 37a made of an elastic body and a screw portion 37b made of metal extending from the elastic body block 37a in the landing direction. The screw portion 37b has a male screw threaded around its longitudinal direction. The abutting member 37 is screwed into the tapped hole (not shown) of the extending portion 32c from the surface side facing the extending piece 33b, and the nut A40 from the surface opposite to the surface facing the extending piece 33b. And it is fastened and attached by nut B41. In FIG. 5, the elastic block 37a is a semi-ellipsoid, but it may be a cylinder, a truncated cone or a truncated pyramid. The screw portion 37b is fastened with a double nut by the nut A40 and the nut B41. However, other fastening means may be used as long as the protrusion of the elastic body block 37a can be adjusted and kept constant. The configuration of the depth direction adjusting mechanism 36, which is not described, has a depth except that the contact member 39 includes an elastic block 39a and a threaded portion 39b and is fastened with a nut by a nut A44 and a nut B45. This is the same as the direction adjustment mechanism 34.

  Next, the frontage direction adjusting mechanism 35 will be described. An abutting member 38 is attached to the facing portion 32b toward the extending piece 33b on the surface facing the end face direction end face of the extending piece 33b. The abutting member 38 has an elastic body block 38a made of an elastic body and a screw portion 38b made of metal extending from the elastic body block 38a toward the direction away from the cage 6 in the frontage direction. The screw portion 38b has a male screw threaded around its longitudinal direction. The abutting member 38 is screwed into the tapped hole (not shown) of the facing portion 32b from the surface facing the front end surface of the extending piece 33b, and the surface opposite to the surface facing the extending piece 33b. Are fastened with nuts A42 and B43. In FIG. 5, the elastic block 38a is a semi-ellipsoid, but it may be a cylinder, a truncated cone or a truncated pyramid. The screw portion 38b is fastened with a double nut by the nut A42 and the nut B43. However, other fastening means may be used as long as the protruding amount of the elastic body block 38a can be adjusted and kept constant.

[Adjustment of Depth Direction Adjustment Mechanisms 34, 36 and Frontage Direction Adjustment Mechanism 35]
Next, a method for adjusting the depth direction adjusting mechanisms 34 and 36 will be described. The nuts B41, 45 and the nuts A40, 44 of the depth direction adjusting mechanisms 34, 36 are loosened, and the elastic blocks 37a, 39a are extended to positions where the elastic blocks 37a, 39a abut against the abutting portions (extending pieces 33b). Adjustment is performed and the nuts A 40 and 44 and nuts B 41 and 45 are fastened in this order to fix the contact members 37 and 39.

  Next, an adjustment method of the frontage direction adjustment mechanism 35 will be described. The nut B43 and nut A42 of the frontage direction adjusting mechanism 35 are loosened, and the allowance adjustment of the elastic body block 38a is performed at a position where the elastic body block 38a comes into contact with the contact portion (end surface in the frontage direction of the extended piece 33b). Then, the abutting member 38 is fixed by fastening in the order of the nut B43.

As described above, according to the elevator according to the present embodiment, the elevator steadying device 21 is attached to at least two diagonal positions among the four depth direction end portions of the attachment member, thereby twisting the car in plan view. Even when such a vibration (vibration in which the vibration in the frontage direction and the vibration in the depth direction are combined) occurs, the vibration in the cab can be sufficiently suppressed.
Further, even if the position of the columnar frame (vertical column) of the car frame is different for each elevator, the elevator steadying device 21 is arranged at the four corners of the cab 6 so that the elevator steadying device 21 There is no need to have ceiling or side wall variations with different mounting positions.

As mentioned above, although the elevator which concerns on this invention has been demonstrated based on embodiment, of course, this invention is not restricted to an above-described form, For example, it is good also as the following forms.
(1) In the above embodiment, the elevator steadying device 21 is installed at each of the pair of attachment members 17 at the end in the depth direction front wall 7 and the other end of the pair of attachment members 17 in the depth direction rear wall 8. As described above, two elevator steadying devices 21 may be installed diagonally.

(2) In the first embodiment, the abutting portions are the front wall 7 and the side wall 9. However, the present invention is not limited to this. Other members constituting the side wall surface and the wall surface in the depth direction of the cab 6 may be used.

(3) In the first and second embodiments, the structure of the two elevator steadying devices 21 is shown. However, if the position where the elevator steadying device 21 is attached is the same as in the first and second embodiments, the elevator steadying device is used. The structure 21 may be a structure other than the first and second embodiments.

(4) Although the first and second embodiments have been described with an elevator having a machine room, an elevator without a machine room, that is, a so-called machine roomless elevator may be used.

(5) In Embodiments 1 and 2 described above, the car room in which the entrance / exit is provided on one side surface has been described, but an elevator in which a plurality of entrances / exits are provided in the car room may be used.

  The elevator according to the present invention can be suitably used as, for example, an elevator structure that needs to suppress car vibration.

7 Front wall 9 Side wall 15 Vertical frame 17 Mounting member 21 Elevator steadying device 23, 34, 36 Depth direction adjusting mechanism 24, 35 Frontage direction adjusting mechanism 31, 32 Support member 25, 28, 37, 38, 39 Contact member

Claims (5)

A cab with an entrance on one side;
The cage has a cage frame placed via an elastic member,
The car frame is a car floor support frame,
A pair of vertical columns;
Upper frame,
Including the bottom frame,
An elevator steadying device that is provided between the car room and the car frame and suppresses the shake of the car room;
Each of the pair of vertical frames has an attachment member having a length substantially the same as the ceiling depth dimension of the cab toward the depth direction in plan view in the vicinity of the ceiling height of the cab.
The elevator having the elevator steadying device at least at two diagonal positions among the four depth direction end portions of the mounting member. The elevator steadying device is
A support member attached to the attachment member;
2. The elevator according to claim 1, further comprising an elastic block that is attached to the support member and that abuts against a contact portion of the cab and suppresses the sway of the cab. The elevator according to claim 2, further comprising an adjusting mechanism that adjusts the elastic body block and the abutting portion so as to abut on each other in a front-view frontage direction. The elevator according to claim 2 or 3, further comprising an adjustment mechanism that adjusts the elastic body block and the contact portion so as to contact each other in a depth direction in plan view. The elevator according to any one of claims 2 to 4, wherein the contact portion is a front wall and a side wall of the elevator cab.