JP5092407B2 - Elevator equipment - Google Patents

Description

  The present invention relates to an elevator apparatus in which a hoisting machine is provided in a pit portion of a hoistway.

  In a machine room-less elevator device in which a machine room is not installed above the elevator hoistway, it is necessary to arrange elevator devices, such as an elevator hoisting machine and a control panel, that have been installed in the machine room in the hoistway. is there. For this reason, the elevator equipment is significantly limited in its installation space so as not to interfere with the car and the counterweight that are raised and lowered in the hoistway, and has a great influence on the hoistway size. .

  As a prior art of such an elevator apparatus, for example, an elevator hoisting machine is installed in a pit portion of a hoistway and arranged so as to be adjacent to a counterweight in plan view along a hoistway wall on one side. The thing is proposed (refer patent document 1). In such an elevator apparatus, the hoisting machine is fixed so that one end of the mounting frame is movably fixed to the counterweight guide rail, and the mounting frame is fixed to the bottom surface of the pit portion of the hoistway by a tension rod. It is supported at a predetermined position of the pit portion.

JP 2006-52076 A

  In the thing of patent document 1, since the hoisting machine and the counterweight were arrange | positioned adjacent to each other along the hoistway wall of one side, the hoistway size becomes hoisting machine as the loading capacity of an elevator increases. There is a problem that the width increases depending on the width of the balance and the width of the counterweight. In recent years, in machine room-less elevators, thin hoisting machines that are designed to have a greater width dimension than a thickness dimension are often used. For this reason, it has been difficult to suppress the hoistway size in the conventional arrangement in which the hoistway size increases depending on the width of the hoist.

  Further, in the structure described in Patent Document 1, the earthquake load generated in the hoist and the counterweight both acts on the counterweight guide rail. For this reason, it has been necessary to configure the counterweight guide rail with a highly rigid member, or to narrow the interval between the rail brackets and firmly fix the counterweight guide rail to the hoistway wall or the like. Therefore, there has been a problem that the installation workability of the counterweight guide rail is deteriorated and the cost is increased.

The present invention has been made to solve the above-described problems, and an object thereof is to suppress an increase in hoistway size in an elevator apparatus in which a hoisting machine is installed in a pit portion of the hoistway. can, and is to provide an elevator apparatus that can be greatly reduced seismic load acting on the guide rail.

The elevator apparatus according to the present invention is configured such that a car is lifted up and down in an elevator hoistway, a car and a fishing bottle are suspended, and a space formed between the car and a hoistway wall on one side is reversed in plan view. A counterweight that is raised and lowered in the direction, a guide rail for the counterweight that is erected in the hoistway and guides the counterweight, and is arranged in the pit portion of the hoistway, between the cage and the counterweight in plan view. A hoisting machine, a unit frame that supports the hoisting machine, a support column that is erected in the hoistway and that has an upper end fixed to the unit frame to support the hoisting machine above the hoisting machine, and the hoistway A first bracket device provided on a wall and fixed to a counterweight guide rail and a support post . The counterweight and the hoisting machine are in plan view, and the longitudinal direction thereof is aligned with the longitudinal direction of the space. Are arranged.

According to the present invention, in the elevator apparatus in which the hoisting machine is installed in the pit portion of the hoistway, an increase in the hoistway size can be suppressed , and the earthquake load acting on the guide rail can be greatly reduced. it is Ru can.

  In order to explain the present invention in more detail, it will be described with reference to the accompanying drawings. In addition, in each figure, the same code | symbol is attached | subjected to the part which is the same or it corresponds, The duplication description is simplified or abbreviate | omitted suitably.

Embodiment 1 FIG.
FIG. 1 is a front view of an essential part showing an elevator apparatus according to Embodiment 1 of the present invention, and FIG. 2 is a view taken along the line AA of the elevator apparatus shown in FIG. 1 and shows a hoistway pit part of a machine room-less elevator. ing. 1 and 2, reference numeral 1 denotes an elevator hoistway, 2 denotes a car that moves up and down in the hoistway 1, and 3 denotes a counterweight that moves up and down in the hoistway 1 in directions opposite to each other.

  Here, the counterweight 3 is formed in a space formed between one side 2a of the car 2 in a plan view and the hoistway wall 4a on one side of the hoistway 1 facing the one side 2a. Go up and down. Further, the counterweight 3 is arranged in a plan view, the longitudinal direction of which is aligned with the longitudinal direction of the space formed between the car 2 and the hoistway wall 4a. It is installed so that the width in the depth direction is larger than that. The counterweight 3 is disposed close to the hoistway wall 4a side in the space, and the distance between the one side surface 3a facing the hoistway wall 4a and the hoistway wall 4a is the one side surface 3a. It is smaller than the distance between the other side surface 3b on the opposite side to the one side surface 2a of the car 2 facing the other side surface 3b in plan view, and the one side surface 3a is disposed so as to be close to the hoistway wall 4a. .

  Further, 5 and 6 are erected in the hoistway 1 so as to face each other with the car 2 interposed therebetween, and a pair of car guide rails for guiding the raising and lowering direction of the car 2, and 7 and 8 have a counterweight 3. A pair of counterweight guide rails which are erected in the hoistway 1 so as to face each other with the gap therebetween and guide the elevating direction of the counterweight 3. Here, the car guide rails 5 and 6 are arranged on both sides of the car 2 in the frontage direction. Specifically, when one of the car guide rails 5 is in plan view, the car guide rail 6 is between the car 2 and the counterweight 3, and the other car guide rail 6 is the hoistway wall 4b facing the car 2 and the hoistway wall 4a. It is arranged between. The counterweight guide rails 7 and 8 are arranged on both sides in the longitudinal direction of the counterweight 3, that is, on both sides in the depth direction of the hoistway 1. Specifically, one counterweight guide rail 7 is in plan view, the counterweight guide rail 8 is connected to the counterweight 3 between the counterweight 3 and the hoistway wall 9a in which the landing doorway is formed. It arrange | positions between the hoistway wall 9b of the back | inner side which opposes the hoistway wall 9a.

  Reference numeral 10 denotes a support base provided on the bottom surface of the pit portion of the hoistway 1. The support base 10 is provided over a predetermined range on the bottom surface of the pit portion, and supports the lower end portions of one car guide rail 5 and the pair of counterweight guide rails 7 and 8. That is, one of the car guide rails 5 and the pair of counterweight guide rails 7 and 8 are erected from the support 10.

  11 is a main rope comprising suspension means for suspending the car 2 and the counterweight 3 in the shape of a fishing bottle, 12 is a drive sheave around which a part of the main rope 11 is wound, and 13 is the drive sheave 12 as a part thereof. In addition, an elevator hoisting machine provided at the pit portion of the hoistway 1 and disposed at a height above the bottom surface of the pit portion by a predetermined distance, 14 is a hoisting machine 13 to which the hoisting machine 13 is directly fixed. It is a unit frame to support.

  Here, the hoisting machine 13 has a width dimension that is larger than its thickness dimension, that is, is thin in the rotation axis direction of the drive sheave 12 and is perpendicular to the rotation axis direction of the drive sheave 12. And a thin type hoisting machine that is large in the width direction. The hoisting machine 13 is arranged between the car 2 and the counterweight 3 in a plan view, arranged in the depth direction of one of the car guide rails 5 and the hoistway 1, and the longitudinal direction of the hoisting machine 13 is 2 and the longitudinal direction of the space formed between the hoistway wall 4a and the depth direction of the hoistway 1 as well as the longitudinal direction of the counterweight 3. That is, the hoisting machine 13 is arranged so that the rotation shaft of the drive sheave 12 faces the frontage direction of the hoistway 1 so that the width in the depth direction is larger than the width in the frontage direction of the hoistway 1. It is installed to be large.

  Further, 15 a and 15 b are a pair of support pillars which are erected from the support base 10 and support the hoisting machine 13 via the unit frame 14. The support pillars 15a and 15b have, for example, upper ends fixed to the lower part of the unit frame 14 in order to support the hoisting machine 13 thereabove. Since it is arranged at a height, it has a predetermined length (height). Moreover, in order to support the load of the hoisting machine 13 equally, the support pillars 15a and 15b are arranged side by side at a predetermined interval in the depth direction of the hoistway 1 according to the direction of the hoisting machine 13, for example. Yes.

  A bracket device 16 is provided on the hoistway wall 4a of the pit portion of the hoistway 1 and supports the lower part of one car guide rail 5, the lower parts of the pair of counterweight guide rails 7 and 8, and the hoisting machine 13. It is. The bracket device 16 includes, for example, first to fourth brackets 17 to 20 and mounting brackets 21 and 22.

  Here, the said 1st bracket 17 and the 2nd bracket 18 consist of angle steel etc., for example, are arrange | positioned at the longitudinal direction both sides of the balance weight 3 in planar view, and support the guide rails 7 and 8 for balance weight. Specifically, the first bracket 17 protrudes from the hoistway wall 4a where the counterweight 3 is close to the hoistway 1 to the inner side so that the longitudinal direction is the frontage direction of the hoistway 1, One counterweight guide rail 7 is fixed to the portion by a rail clip (not shown) or the like. Similarly to the first bracket 17, the second bracket 18 protrudes from the hoistway wall 4 a toward the inner side of the hoistway 1 so that its longitudinal direction is the frontage direction of the hoistway 1. The other counterweight guide rail 8 is fixed by a rail clip or the like.

  The third bracket 19 is made of, for example, H steel or the like, is disposed between the cage 2 and the counterweight 3 in plan view, and is connected between the first bracket 17 and the second bracket 18. Specifically, the third bracket 19 is arranged so that its longitudinal length is in the depth direction of the hoistway 1, the landing side end is the tip of the first bracket 17, and the back end is the second bracket. It is fixed to the tip of 18. That is, the first to third brackets 17 to 19 are integrally configured so as to exhibit a substantially U-shape as a whole. And the 1st thru | or 3rd brackets 17 thru | or 19 are installed in the hoistway wall 4a of the hoistway 1 pit part so that the counterweight 3 may be arrange | positioned in the U-shaped part, and the hoistway wall 4a and Is arranged so as to surround the counterweight 3 in plan view.

  The first bracket 17 and the second bracket 18 are the support means for supporting the counterweight guide rails 7 and 8, except for the support base 10 that supports the lower end portions of the counterweight guide rails 7 and 8. Of these, the one installed in the lowermost part in the hoistway 1 is shown. That is, the bracket device 16 shown in FIGS. 1 and 2 represents the lowermost one disposed at the lowest position in the hoistway 1.

  The fourth bracket 20 is for supporting a part of the load acting on one of the car guide rails 5 on the hoistway wall 4a via the first to third brackets 17 to 19. Specifically, the fourth bracket 20 is substantially L-shaped, and a lower end portion thereof is provided on the upper surface of the third bracket 19, and a car side guide is provided on the upper end portion protruding toward the car 2 via a rail clip or the like. The lower part of the rail 5 is fixed. The mounting brackets 21 and 22 support part of the load acting on the hoisting machine 13 via the support columns 15a and 15b on the hoistway wall 4a via the first to third brackets 17 to 19. Is for. Specifically, the fittings 21 and 22 are substantially L-shaped, one end is fixed to the lower surface of the third bracket 19, and a fastening means (not shown) is connected to the other end protruding to the car 2 side. ) And the like, the support columns 15a and 15b are fixed.

  According to Embodiment 1 of the present invention, the counterweight 3 and the hoisting machine 13 are disposed in a space formed between the car 2 and the hoistway wall 4a in plan view, and each longitudinal direction is Since it is arranged according to the longitudinal direction of the space, it is possible to suppress an increase in the hoistway size even when the load capacity of the elevator is increased. That is, even when the load capacity of the elevator is increased and the width of the counterweight 3 and the width of the hoisting machine 13 are increased, the dimensions of the hoisting machine 13 and the like are increased within the longitudinal dimension of the space. It is possible to absorb the minute and it is not necessary to increase the distance between the car 2 and the hoistway wall 4a. The hoisting machine 13 is disposed between the car 2 and the counterweight 3 in plan view, and the longitudinal direction of the hoisting machine 13 is the length of the space formed between the longitudinal direction of the counterweight 3 and the car 2 and the counterweight 3. Since the hoisting machine 13 and the part of the unit frame 14 are arranged in accordance with the direction, it is possible to arrange the hoisting machine 13 and a part of the unit frame 14 at the same height as the range in which the car 2 and the counterweight 3 can be raised and lowered. In such a case, it is possible to easily cope with a case where the depth of the pit portion of the hoistway 1 is shallow.

  The lower portions of the counterweight guide rails 7 and 8 and the hoisting machine 13 are supported by a bracket device 16 protruding from the hoistway wall 4a. Therefore, the earthquake load generated in the counterweight 3 and the hoisting machine 13 can be directly supported by the strong hoistway wall 4a, and the earthquake load acting on the counterweight guide rails 7 and 8, etc. is greatly increased. Can be reduced.

  Further, since the bracket device 16 has a U-shape, a so-called portal structure, the bracket device 16 supports the lower portions of the balance weight guide rails 7 and 8 and the hoisting machine 13 together. The bracket device 16 can be easily and firmly configured, and it is possible to simultaneously cope with the earthquake load, simplify the pit portion of the hoistway 1 and suppress the hoistway size.

Specifically, by fixing the intermediate part of the support pillars 15a and 15b to the lowermost bracket device 16 , the hoisting machine 13 is firmly supported in a state where the hoisting machine 13 is arranged at a predetermined height. It becomes possible to do. Further, by supporting the lower portion of one of the car guide rails 5 to the lowermost bracket device 16 , it is not necessary to add another bracket device only to support the lower portion of the car guide rail 5, and the hoistway The configuration of the 1 pit portion can be further simplified.

Embodiment 2. FIG.
FIG. 3 is a front view of an essential part showing an elevator apparatus according to Embodiment 2 of the present invention. In FIG. 3, reference numeral 23 is provided on the hoistway wall 4 a of the hoistway 1 pit, and the lower part of one car guide rail 5, the lower parts of the pair of counterweight guide rails 7 and 8, and the upper part of the hoisting machine 13. It is the bracket apparatus which supports each. This bracket device 23 is shown in the second stage from the bottom, which is disposed on the first level of the lowermost bracket device 16 in the hoistway 1, and has substantially the same configuration as the bracket device 16, For example, the first to fourth brackets 24 to 27 and the fittings 28 and 29 are configured. Other than that, the configuration of the bracket device 16 is the same as that of the first embodiment.

  Here, the first to third brackets 24 to 26 are integrally configured so as to exhibit a substantially U-shape as a whole, and are disposed so as to surround the counterweight 3 in plan view with the hoistway wall 4a. ing. The mounting brackets 28 and 29 support a part of the load acting on the upper part of the hoisting machine 13 via the unit frame 14 on the hoistway wall 4a via the first to third brackets 24 to 26. It is. Specifically, the fittings 28 and 29 are substantially L-shaped, one end is fixed to the lower surface of the third bracket 26, and the other end protruding to the car 2 side is a fastening means (not shown). ) Etc., and is fixed to the upper end side surface of the unit frame 14. The other configuration of the bracket device 23 is the same as the corresponding configuration of the bracket device 16.

  According to the second embodiment of the present invention, since the load acting on the hoisting machine 13 is supported by the bracket devices 16 and 23, for example, even when the hoisting machine 13 is heavy, the hoisting machine 13 is hoisted. It becomes possible to sufficiently cope with the earthquake load generated in the machine 13, and the earthquake load acting on the counterweight guide rails 7 and 8 and the car guide rail 5 can be greatly reduced. The other effects are the same as those of the first embodiment.

It is a principal part front view which shows the elevator apparatus in Embodiment 1 of this invention. It is an AA arrow line view of the elevator apparatus shown in FIG. It is a principal part front view which shows the elevator apparatus in Embodiment 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hoistway 2 Car 2a One side surface 3 Balance weight 3a One side surface 3b Other side surface 4a, 4b, 9a, 9b Hoistway wall 5, 6 Guide rail for cages 7, 8 Guide rail for counterweight 10 Support stand 11 Main rope 12 Drive Sheave 13 Hoisting machine 14 Unit frame 15a, 15b Support pillar 16, 23 Bracket device 17, 24 First bracket 18, 25 Second bracket 19, 26 Third bracket 20, 27 Fourth bracket 21, 22, 28, 29 Mounting bracket

Claims (5)

The car going up and down in the elevator hoistway,
A balance weight that is suspended in the cage and a fishing bottle type, and formed between the cage and the hoistway wall on one side in plan view, the cage is raised and lowered in the opposite direction,
A counterweight guide rail installed in the hoistway to guide the counterweight;
A hoisting machine disposed in the pit portion of the hoistway and disposed between the car and the counterweight in plan view;
A unit frame for supporting the hoisting machine;
A support column which is erected in the hoistway and whose upper end is fixed to the unit frame in order to support the hoisting machine thereabove;
A first bracket device provided on the hoistway wall, to which the counterweight guide rail and the support column are fixed ;
An elevator apparatus, wherein the counterweight and the hoisting machine are arranged in a plan view in accordance with the longitudinal direction of the space. Wherein the first bracket unit, an elevator apparatus according to claim 1, characterized in that said by the one side of the hoistway wall, arranged so as to surround the periphery of the counterweight plan view. The unit frame has a lower part disposed below the hoisting machine,
The elevator apparatus according to claim 1 or 2 , wherein an upper end portion of the support pillar is fixed to the lower portion of the unit frame . A second bracket device provided on the hoistway wall, to which the counterweight guide rail is fixed;
With
Said unit frame, the upper is disposed above said traction machine, wherein the top, claim 1, wherein the fixed <br/> to the second bracket device by a predetermined attachment means Item 4. The elevator apparatus according to any one of Items 3 . Standing on the hoistway, a pair of car guide rails for guiding the cage,
The provided, one of said car guide rail, the lower portion, the elevator apparatus according to any one of claims 1 to 4, characterized in that supported on the first bracket unit.

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