WO2014189074A1 - Elevator pit scaffolding device - Google Patents

Elevator pit scaffolding device Download PDF

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Publication number
WO2014189074A1
WO2014189074A1 PCT/JP2014/063458 JP2014063458W WO2014189074A1 WO 2014189074 A1 WO2014189074 A1 WO 2014189074A1 JP 2014063458 W JP2014063458 W JP 2014063458W WO 2014189074 A1 WO2014189074 A1 WO 2014189074A1
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WO
WIPO (PCT)
Prior art keywords
pit
car
plate
hoistway
elevator
Prior art date
Application number
PCT/JP2014/063458
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French (fr)
Japanese (ja)
Inventor
啓太 島林
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to CN201480029279.4A priority Critical patent/CN105246811A/en
Priority to JP2015518274A priority patent/JPWO2014189074A1/en
Publication of WO2014189074A1 publication Critical patent/WO2014189074A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0043—Devices enhancing safety during maintenance
    • B66B5/005—Safety of maintenance personnel
    • B66B5/0056—Safety of maintenance personnel by preventing crushing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/28—Buffer-stops for cars, cages, or skips

Definitions

  • the present invention relates to an elevator pit scaffolding device installed in a pit for maintenance and inspection of equipment arranged above the bottom of the pit.
  • a support base is provided on the wall in the pit in order to use a pit lap of a certain size regardless of the pit depth.
  • the maintenance staff supports the lower end portion of the pit lap on the support base from the landing and descends to the bottom of the pit via the support base to perform the maintenance inspection.
  • the pit lap is hung in a folded state on a holder provided on the hall wall between the hall floor and the support base (see, for example, Patent Document 1).
  • a work table of a certain size is provided in the shock absorber installed in the pit regardless of the depth of the pit.
  • the maintenance staff gets down to the bottom of the pit and then leans the pit lap on the work table and goes up to the work table to perform the maintenance inspection.
  • the pit lap is tilted to the corner of the bottom of the pit or stored in another place (for example, see Patent Document 2).
  • the present invention has been made to solve the above-described problems, and an pit scaffolding device for an elevator that can perform maintenance and inspection using the same pit and work laps regardless of the pit depth.
  • the purpose is to obtain.
  • the elevator pit scaffolding apparatus includes a plurality of plate support members including a wall-side support member provided on a wall of a hoistway closer to a landing side than a car guide rail in the hoistway pit, and the hoistway pit.
  • a pit plate that is supported by the plate support portion and that has a work surface that is positioned below the floor surface of the lowest floor landing and above the bottom surface of the pit and on which maintenance personnel ride.
  • the pit plate is supported by the plurality of plate support portions including the wall side support member provided on the wall of the hoistway on the landing side with respect to the car guide rail in the hoistway pit. Therefore, the maintenance inspection can be performed using the same pit lap and work lap regardless of the pit depth.
  • FIG. 2 is a cross-sectional view taken along line II-II in FIG.
  • FIG. 3 is a sectional view taken along line III-III in FIG. It is a side view when a cage
  • FIG. 1 is a plan view showing a hoistway pit of an elevator according to Embodiment 1 of the present invention.
  • FIG. 2 is a cross-sectional view taken along the line II-II in FIG.
  • FIG. 3 is a cross-sectional view taken along the line III-III in FIG.
  • a pair of car guide rails 2a and 2b and a pair of counterweight guide rails 3a and 3b are installed in the hoistway 1.
  • the car 4 is raised and lowered in the hoistway 1 along the car guide rails 2a and 2b.
  • the counterweight 5 is raised and lowered in the hoistway 1 in the direction opposite to the car 4 along the counterweight guide rails 3a and 3b.
  • the counterweight 5 is provided at a position farther from the landing 6 than the car 4 in the depth direction (vertical direction in FIG. 1) as viewed from the landing 6 in the hoistway 1.
  • the car guide rails 2a and 2b are arranged near the center in the depth direction of the hoistway 1 (vertical direction in FIG. 1), and on both sides of the car 4 in the width direction of the entrance / exit of the landing 6 (horizontal direction in FIG. 1). Has been placed. Further, the counterweight guide rails 3a and 3b are arranged at positions farther from the platform 6 than the car 4 in the depth direction of the hoistway 1 and on both sides of the counterweight 5 in the width direction of the entrance / exit of the platform 6. Has been placed.
  • a hoisting machine 7 and a control panel 8 are installed at the height of the lowest floor in the hoistway 1. As shown in FIG. 2, the position of the lower end surface of the hoisting machine 7 and the control panel 8 is located above the floor surface 9 of the lowest floor landing 6a for flooding countermeasures.
  • the hoisting machine 7 and the control panel 8 are fixed to the wall surface of the hoistway 1 so as to face one side surface of the car 4 when the car 4 stops at the lowest floor landing 6a.
  • the hoisting machine 7 and the control panel 8 are thin.
  • the hoisting machine 7 has a hoisting machine main body 10 and a drive sheave 11.
  • the hoisting machine main body 10 includes a motor (not shown) that rotates the drive sheave 11 and a brake (not shown) that brakes the rotation of the drive sheave 11.
  • a suspension body 12 for suspending the car 4 and the counterweight 5 is wound around the drive sheave 11.
  • the car 4 and the counterweight 5 are suspended in the hoistway 1 by the suspension body 12, and are raised and lowered in the hoistway 1 by the hoisting machine 7.
  • the hoistway pit 21 is provided with a car buffer 23 and a counterweight buffer 24. Further, the lower end portions of the car guide rails 2a and 2b and the lower end portions of the counterweight guide rails 3a and 3b are fixed to the pit bottom surface 21a.
  • the hoistway pit 21 is provided with a pit scaffolding device 22 for checking equipment such as the hoisting machine 7 and the control panel 8.
  • the pit scaffolding device 22 includes a pit plate 25, a pit trap 26 used when a maintenance worker descends from the lowest floor landing 6 a to the pit plate 25, and a work trap 27 used when a maintenance worker works on the pit plate 25. Have.
  • the pit plate 25 has a work plate portion 25b including a work surface 25a on which maintenance personnel ride, and a plate frame 25c surrounding the work plate portion 25b.
  • the pit plate 25 is provided so that the work surface 25 a of the work plate portion 25 b is horizontal in the hoistway pit 21.
  • the plate frame 25c rises upward from the work surface 25a of the work plate portion 25b.
  • the pit plate 25 is provided between the pit bottom surface 21a and the floor surface 9 of the lowest floor landing 6a.
  • the pit plate 25 is provided so that the work surface 25a of the work plate portion 25b comes below a certain distance L set from the floor surface 9 of the lowest floor landing 6a regardless of the depth of the hoistway pit 21. ing.
  • the pit plate 25 includes a plurality of (two in this example) wall-side support members 30 provided on the wall surface of the hoistway 1 in the range from the landing 6 to the car guide rails 2a and 2b, and a car guide rail.
  • the wall-side support member 30 is provided on the landing side wall surface 21 b of the hoistway pit 21.
  • the wall-side support members 30 are provided at a distance from each other in the width direction of the entrance / exit of the hall 6.
  • the wall-side support member 30 supports the pit plate 25 in a state where it is in contact with the landing side wall surface 21b.
  • an angle member having a substantially L-shaped cross section is used as the wall-side support member 30.
  • the car rail side support member 31 and the weight rail side support member 32 are provided at the same height where the wall side support member 30 is provided from the floor surface 9 of the lowest floor landing 6a in the height direction of the hoistway 1. ing.
  • an angle member having a substantially L-shaped cross section is used, like the wall side support member 30.
  • the car rail side support member 31 is fixed to the opposite side of the car guide rails 2a and 2b to the side on which the car 4 is engaged. Thus, when vertically projected downward from above the hoistway 1, the car rail side support member 31 protrudes from the car guide rails 2 a and 2 b to the side opposite to the car 4.
  • the weight rail side support member 32 is also fixed to the opposite side of the counterweight guide rails 3a and 3b to which the counterweight 5 is engaged. Thereby, when projected vertically from the upper side of the hoistway 1 to the lower side, the weight rail side support member 32 also protrudes from the counterweight guide rails 3a, 3b to the opposite side of the counterweight 5. Further, the weight rail side support member 32 extends toward the car 4 from the surface of the counterweight 5 facing the car 4. Further, the end portion of the weight rail side support member 32 in the depth direction of the hoistway 1 reaches just below the car 4. Further, the weight rail side support member 32 is provided at a position facing the wall side support member 30.
  • the size of the work surface 25a of the work plate portion 25b includes at least a part of the projected range of the car 4 when the car 4 is vertically projected from above the hoistway 1 to the hoistway 7 and the control panel 8. It is set to a size that ensures the inspection range of the equipment.
  • the shape of the work surface 25a is a rectangle in which the width dimension W2 of the pit plate 25 in the width direction of the entrance / exit of the landing 6 is one side and the depth dimension D2 of the pit plate 25 in the depth direction of the hoistway 1 is the other side. Therefore, the hoisting machine 7 is vertically projected from the upper side to the lower side of the hoistway 1 so that the projection range is removed.
  • the width dimension W2 of the pit plate 25 in the width direction of the entrance / exit of the hall 6 is longer than the width dimension W1 of the car 4 on the hall 6 side.
  • the depth dimension D2 of the pit plate 25 in the depth direction of the hoistway 1 is longer than the depth dimension D1 of the car 4.
  • the size of the pit plate 25 is a size that includes most of the projection range of the car 4 when the car 4 and the pit plate 25 are vertically projected from above the hoistway 1 downward.
  • the work surface 25a of the work plate portion 25b has a plurality of through holes 40 (two in this example) for passing the rails of the car guide rails 2a and 2b to the pit bottom surface 21a.
  • the shape of the through hole 40 is a rectangular hole through which each of the car guide rails 2a and 2b can pass.
  • a normal ladder is used as the pit trapping 26.
  • the pit trap 26 is fixed to the wall surface of the same hoistway 1 in which the hoisting machine 7 and the control panel 8 are provided.
  • the lower end of the pit lap 26 is in contact with the pit plate 25.
  • wrap 26 is located above the floor surface 9 of the lowest floor hall 6a.
  • a folding ladder used when maintenance personnel cannot reach the equipment such as the hoisting machine 7 and the control panel 8 is used.
  • a ladder whose ladder does not open on a straight line is used.
  • the work trap 27 is not fixed and can be carried to a place where maintenance personnel work.
  • the car shock absorber 23 is disposed directly below the car 4.
  • the car shock absorber 23 absorbs an impact when the car 4 falls into the hoistway pit 21.
  • the height of the car shock absorber 23 from the pit bottom surface 21 a is adjusted by the support member 28.
  • the strut member 28 has a lower strut portion 28a and an upper strut portion 28b.
  • the lower support column 28a is fixed to the pit bottom surface 21a just below the car 4. Further, the upper end portion of the lower column portion 28 a is in contact with the pit plate 25.
  • the length of the lower support column 28a is set according to the height from the pit bottom surface 21a to the pit plate 25.
  • An upper column part 28b is provided on the upper part of the lower column part 28a via a pit plate 25.
  • Respective fixing plates are provided on the surfaces of the lower support portion 28a and the upper support portion 28b facing each other. In this example, the fixing plates for the lower support portion 28a and the upper support portion 28b are fixed with bolts and nuts with the pit plate 25 sandwiched from above and below.
  • a car shock absorber 23 is provided at the upper end of the upper support column 28b.
  • the upper column part 28b adjusts the height from the pit plate 25 to the car shock absorber 23.
  • the upper support column 28b and the car shock absorber 23 are provided with fixing plates on the surfaces facing each other. In this example, the upper support column 28b and the car shock absorber 23 are fixed by bolts and nuts via a fixing plate.
  • the pit plate 25 is also supported by the lower support portion 28a. Therefore, the pit plate 25 is supported at a total of seven locations, that is, the wall side support member 30, the car rail side support member 31, the weight rail side support member 32, and the lower column portion 28a.
  • the counterweight buffer 24 is disposed directly below the counterweight 5. Further, the counterweight buffer 24 is fixed to the pit bottom surface 21a.
  • FIG. 4 is a side view when the car is pushed down on the shock absorber of FIG.
  • the fixed distance L in which the pit plate 25 is set from the floor 9 of the lowest floor landing 6a is as shown in FIG. 4 when the car 4 is pushed down to the car shock absorber 23 disposed in the hoistway pit 21.
  • the car equipment (in this example, the front sag) 4a mounted on the lower part of the car 4 is set to a distance that does not interfere with the work surface 25a of the work plate part 25b.
  • the maintenance staff gets off the pit plate 25 from the lowest floor landing 6a using the pit turret 26.
  • equipment such as the hoisting machine 7 and the control panel 8 installed above the floor surface 9 of the lowest floor landing 6a is inspected.
  • the work trap 27 may be folded and placed on the pit plate 25 so as not to interfere with the normal operation of the elevator. May be taken out from the hoistway pit 21 and stored in another storage location.
  • the pit plate 25 is provided on the landing side wall surface 21 b below the fixed distance L set from the floor surface 9 of the lowest floor landing 6 a regardless of the depth of the hoistway pit 21.
  • the distance from the pit plate 25 to the hoisting machine 7 and the control panel 8 can be kept constant. Thereby, even when the depth of the hoistway pit 21 becomes deep, the same pit trap 26 and work trap 27 can be used.
  • the fixed distance L in which the pit plate 25 is set from the floor surface 9 of the lowest floor landing 6 a is such that when the car 4 is pushed down to the car shock absorber 23 disposed in the hoistway pit 21, Since the distance between the car equipment 4a mounted on the lower portion and the work surface 25a of the work plate portion 25b is set so as not to interfere with each other, the pit trap 26 and the work can be performed even when the depth of the hoistway pit 21 is minimum. The same thing can be used for the trap 27.
  • the storage location can also be made constant. Thereby, it can prevent that the magnitude
  • the pit plate 25 Since the pit plate 25 is supported by the wall-side support member 30 provided on the wall surface of the hoistway 1 in the range from the landing 6 to the car guide rails 2a and 2b, the position is close to the landing side wall surface 21b side. There is a work surface 25a. As a result, the maintenance staff can easily get off the pit plate 25 from the lowest floor hall 6a.
  • the size of the work surface 25a of the work plate portion 25b is set to a size that secures the inspection range of equipment such as the hoisting machine 7 and the control panel 8, the maintenance staff All inspections can be done with.
  • the pit plate 25 is also provided on the car rail side support member 31 provided on each of the car guide rails 2a and 2b, it is more than when supported only by the wall side support member 30 provided on the landing side wall surface 21b. Also, the strength for supporting the pit plate 25 can be increased.
  • the pit plate 25 is also provided on the weight rail side support member 32 provided on each of the counterweight guide rails 3a and 3b, the pit plate 25 having a large area of the work surface 25a of the work plate portion 25b. When is used, the strength for supporting the pit plate 25 can be increased. Furthermore, since the weight rail side support member 32 is provided at a position facing the wall side support member 30, both end portions of the pit plate 25 can be supported in the depth direction of the hoistway 1. Thereby, the stability which supports the pit plate 25 can be improved.
  • the work surface 25a of the work plate part 25b is fixed.
  • the pit plate 25 having a large area is used, the central portion of the pit plate 25 can be supported. Thereby, the strength for supporting the pit plate 25 can be obtained, and the stability of the pit plate 25 can be further improved.
  • the pit plate 25 is not only strong but also manufactured. There is a risk of increasing the cost.
  • the pit plate 25 is provided with a through hole 40 for passing the rails of the car guide rails 2a and 2b to the pit bottom surface 21a, the car guide rails 2a and 2b pass through the through hole 40 and pass through the pit. It can be fixed to the bottom surface 21a. For this reason, since the pit plate 25 should just have the intensity
  • the wall side support member 30, the car rail side support member 31, the weight rail side support member 32, and the lower support portion 28a are provided in total of seven locations. However, it is not always necessary to provide all of them, and some of them may be omitted. That is, the position and number of the plate support portions can be selected according to the design in consideration of the strength and stability of the pit plate 25.
  • the wall-side support member 30, the car rail-side support member 31, and the weight rail-side support member 32 are angle members having a substantially L-shaped cross section, but are not limited thereto.
  • a block having a substantially rectangular cross section may be used.
  • the pit trap 26 is fixed to the wall surface of the hoistway 1, but the pit trap 26 may be leaned against the wall surface of the hoistway 1 without being fixed.
  • two wall-side support members 30 are provided, but one or three or more wall-side support members 30 may be provided.
  • the wall-side support member 30 is provided on the landing side wall surface 21 b, but the hall 6 is more than the car guide rails 2 a and 2 b on the wall of the hoistway 1 facing the left and right side surfaces of the car 4. It may be provided on the side.
  • the pit plate 25 may be provided with an exit for getting down to a portion below the pit plate 25 of the hoistway pit 21.

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  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

This elevator pit scaffolding device comprises: a plurality of plate supports including a wall-side support member provided, in an elevator shaft pit, on a wall in the elevator shaft more toward a landing side than an elevator car guide rail in the elevator shaft pit; and a pit plate that is supported by the plate supports in the elevator shaft pit and is located below the floor of the bottom-most landing and above the pit floor, said pit plate having a work surface on which maintenance staff can stand.

Description

エレベータのピット足場装置Elevator pit scaffolding equipment
　この発明は、ピット底面よりも上方に配置された機器類を保守点検するためにピット内に設置されているエレベータのピット足場装置に関するものである。 The present invention relates to an elevator pit scaffolding device installed in a pit for maintenance and inspection of equipment arranged above the bottom of the pit.
　従来のエレベータのピット入出装置では、ピットの深さに関わらず一定の大きさのピットタラップを用いるために、ピット内の壁に支持台が設けられている。保守員は、保守点検時に、乗場からピットタラップの下端部を支持台に支持させ、支持台を経由してピット底面に降りて保守点検を行う。エレベータの通常運転時には、ピットタラップが、乗場床と支持台との間の乗場側の壁に設けられた保持具に折り畳まれた状態で掛けられている（例えば、特許文献１参照）。 In the conventional elevator pit entry / exit device, a support base is provided on the wall in the pit in order to use a pit lap of a certain size regardless of the pit depth. At the time of maintenance inspection, the maintenance staff supports the lower end portion of the pit lap on the support base from the landing and descends to the bottom of the pit via the support base to perform the maintenance inspection. During normal operation of the elevator, the pit lap is hung in a folded state on a holder provided on the hall wall between the hall floor and the support base (see, for example, Patent Document 1).
　また、従来の他のエレベータのピット内保守装置では、ピットの深さに関わらず、ピット内に設置された緩衝器に、一定の大きさの作業台が設けられている。保守員は、保守点検時に、ピット底面に降りた後、ピットタラップを作業台に立て掛けて作業台に上がり、保守点検を行う。エレベータの通常運転時には、ピットタラップが、ピット底面の隅に倒されているか、または、別の場所に保管されている（例えば、特許文献２参照）。 Moreover, in other conventional elevator maintenance equipment in the pit, a work table of a certain size is provided in the shock absorber installed in the pit regardless of the depth of the pit. At the time of maintenance inspection, the maintenance staff gets down to the bottom of the pit and then leans the pit lap on the work table and goes up to the work table to perform the maintenance inspection. During normal operation of the elevator, the pit lap is tilted to the corner of the bottom of the pit or stored in another place (for example, see Patent Document 2).
特開２００６－８２９３５号公報JP 2006-82935 A 特開２００４－３５１４６号公報JP 2004-35146 A
　しかし、特許文献１に示された従来のエレベータのピット入出装置では、保守員が、ピットの底面から機器類の点検を行う必要がある。ピットに設置された機器類がピット底面よりも上に設置され、機器類に保守員の手が届かないとき、ピット内に降りるためのピットタラップとは別に作業用タラップを用いる必要がある。作業用タラップは、ピットの深さが深くなると、ピットの深さに合わせてサイズを大きくする必要がある。作業用タラップのサイズが大きくなると、収納場所も大きくなってしまう。 However, in the conventional elevator pit entry / exit device disclosed in Patent Document 1, it is necessary for maintenance personnel to check the equipment from the bottom of the pit. When the equipment installed in the pit is installed above the bottom of the pit and the maintenance staff cannot reach the equipment, it is necessary to use a working turret separately from the pit lap for getting into the pit. When the pit depth becomes deep, the working lap needs to be increased in size in accordance with the pit depth. As the size of the working trap increases, the storage space also increases.
　また、特許文献２に示された従来のエレベータのピット内保守装置では、ピットの深さが深くなると、保守員が作業台へ上がるときに用いる作業用タラップのサイズが大きくなる問題がある。また、保守員がピット底面に降りるときに用いるピットタラップのサイズも合わせて大きくなる問題がある。これにより、ピットタラップ及び作業用タラップの収納場所も大きくなってしまう。 Further, in the conventional elevator pit maintenance device shown in Patent Document 2, there is a problem that when the depth of the pit becomes deep, the size of the working trap used when the maintenance staff goes up to the work table increases. There is also a problem that the size of the pit lap used when the maintenance staff gets down to the bottom of the pit also increases. As a result, the storage space for the pit wrap and work wrap is also increased.
　これらにより、特許文献１及び２に示された従来のエレベータのピット入出装置及びエレベータのピット内保守装置では、利便性が悪くなってしまう。 For these reasons, the conventional elevator pit entry / exit device and elevator pit maintenance device shown in Patent Documents 1 and 2 are not convenient.
　この発明は、上記のような課題を解決するためになされたものであり、ピットの深さに関わらず、同一のピットタラップ及び作業タラップを用いて保守点検を行うことができるエレベータのピット足場装置を得ることを目的とする。 The present invention has been made to solve the above-described problems, and an pit scaffolding device for an elevator that can perform maintenance and inspection using the same pit and work laps regardless of the pit depth. The purpose is to obtain.
　この発明によるエレベータのピット足場装置は、昇降路ピット内のかごガイドレールよりも乗場側の昇降路の壁に設けられている壁側支え部材を含む複数のプレート支持部、及び昇降路ピット内で上記プレート支持部により支持されており、かつ最下階乗場の床面よりも下方でピット底面よりも上方に位置し保守員が乗る作業面を有しているピットプレートを備えている。 The elevator pit scaffolding apparatus according to the present invention includes a plurality of plate support members including a wall-side support member provided on a wall of a hoistway closer to a landing side than a car guide rail in the hoistway pit, and the hoistway pit. There is provided a pit plate that is supported by the plate support portion and that has a work surface that is positioned below the floor surface of the lowest floor landing and above the bottom surface of the pit and on which maintenance personnel ride.
　この発明によるエレベータのピット足場装置によれば、昇降路ピット内のかごガイドレールよりも乗場側の昇降路の壁に設けられている壁側支え部材を含む複数のプレート支持部によりピットプレートが支持されているので、ピットの深さに関わらず、同一のピットタラップ及び作業タラップを用いて保守点検を行うことができる。 According to the elevator pit scaffolding apparatus according to the present invention, the pit plate is supported by the plurality of plate support portions including the wall side support member provided on the wall of the hoistway on the landing side with respect to the car guide rail in the hoistway pit. Therefore, the maintenance inspection can be performed using the same pit lap and work lap regardless of the pit depth.
この発明の実施の形態１によるエレベータの昇降路ピットを示す平面図である。It is a top view which shows the hoistway pit of the elevator by Embodiment 1 of this invention. 図１のＩＩ－ＩＩ線に沿った断面図である。FIG. 2 is a cross-sectional view taken along line II-II in FIG. 図１のＩＩＩ－ＩＩＩ線に沿った断面図である。FIG. 3 is a sectional view taken along line III-III in FIG. 図２の緩衝器にかごが突き下げたときの側面図である。It is a side view when a cage | basket pushes down to the buffer of FIG.
　実施の形態１．
　図１は、この発明の実施の形態１によるエレベータの昇降路ピットを示す平面図である。また、図２は、図１のＩＩ－ＩＩ線に沿った断面図である。さらに、図３は、図１のＩＩＩ－ＩＩＩ線に沿った断面図である。 Embodiment 1 FIG.
1 is a plan view showing a hoistway pit of an elevator according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional view taken along the line II-II in FIG. FIG. 3 is a cross-sectional view taken along the line III-III in FIG.
　図１～図３に示すように、昇降路１内には、一対のかごガイドレール２ａ，２ｂ、及び一対の釣合おもりガイドレール３ａ，３ｂが設置されている。かご４は、かごガイドレール２ａ，２ｂに沿って昇降路１内を昇降される。また、釣合おもり５は、釣合おもりガイドレール３ａ，３ｂに沿って昇降路１内をかご４と反対方向に昇降される。この例では、乗場６から昇降路１内を見た奥行方向（図１の上下方向）について釣合おもり５が、かご４よりも乗場６から離れた位置に設けられている。 1 to 3, a pair of car guide rails 2a and 2b and a pair of counterweight guide rails 3a and 3b are installed in the hoistway 1. The car 4 is raised and lowered in the hoistway 1 along the car guide rails 2a and 2b. The counterweight 5 is raised and lowered in the hoistway 1 in the direction opposite to the car 4 along the counterweight guide rails 3a and 3b. In this example, the counterweight 5 is provided at a position farther from the landing 6 than the car 4 in the depth direction (vertical direction in FIG. 1) as viewed from the landing 6 in the hoistway 1.
　かごガイドレール２ａ，２ｂは、昇降路１の奥行方向（図１の上下方向）の中央付近に配置され、かつ、乗場６の出入口の幅方向（図１の左右方向）についてかご４の両側に配置されている。また、釣合おもりガイドレール３ａ，３ｂは、昇降路１の奥行方向について乗場６からかご４よりも離れた位置に配置され、かつ、乗場６の出入口の幅方向について釣合おもり５の両側に配置されている。 The car guide rails 2a and 2b are arranged near the center in the depth direction of the hoistway 1 (vertical direction in FIG. 1), and on both sides of the car 4 in the width direction of the entrance / exit of the landing 6 (horizontal direction in FIG. 1). Has been placed. Further, the counterweight guide rails 3a and 3b are arranged at positions farther from the platform 6 than the car 4 in the depth direction of the hoistway 1 and on both sides of the counterweight 5 in the width direction of the entrance / exit of the platform 6. Has been placed.
　また、昇降路１内の最下階の高さ位置には、巻上機７及び制御盤８が設置されている。図２に示すように、巻上機７及び制御盤８の下端面の位置は、冠水対策のために最下階乗場６ａの床面９よりも上方に位置している。この例では、巻上機７及び制御盤８は、かご４が最下階乗場６ａに停止したとき、かご４の一方の側面に対向するように昇降路１の壁面に固定されている。また、巻上機７及び制御盤８は、薄型のものを用いている。 Also, at the height of the lowest floor in the hoistway 1, a hoisting machine 7 and a control panel 8 are installed. As shown in FIG. 2, the position of the lower end surface of the hoisting machine 7 and the control panel 8 is located above the floor surface 9 of the lowest floor landing 6a for flooding countermeasures. In this example, the hoisting machine 7 and the control panel 8 are fixed to the wall surface of the hoistway 1 so as to face one side surface of the car 4 when the car 4 stops at the lowest floor landing 6a. The hoisting machine 7 and the control panel 8 are thin.
　巻上機７は、巻上機本体１０と駆動シーブ１１とを有している。巻上機本体１０は、駆動シーブ１１を回転させるモータ（図示せず）と、駆動シーブ１１の回転を制動するブレーキ（図示せず）とを有している。 The hoisting machine 7 has a hoisting machine main body 10 and a drive sheave 11. The hoisting machine main body 10 includes a motor (not shown) that rotates the drive sheave 11 and a brake (not shown) that brakes the rotation of the drive sheave 11.
　駆動シーブ１１には、かご４と釣合おもり５とを吊り下げる懸架体１２が巻き掛けられている。懸架体１２としては、複数のロープ、または複数のベルト等が用いられている。かご４と釣合おもり５とは、懸架体１２により昇降路１内に吊り下げられており、巻上機７により昇降路１内を昇降される。 A suspension body 12 for suspending the car 4 and the counterweight 5 is wound around the drive sheave 11. As the suspension body 12, a plurality of ropes or a plurality of belts are used. The car 4 and the counterweight 5 are suspended in the hoistway 1 by the suspension body 12, and are raised and lowered in the hoistway 1 by the hoisting machine 7.
　昇降路ピット２１には、かご緩衝器２３と、釣合おもり緩衝器２４とが設けられている。また、ピット底面２１ａには、かごガイドレール２ａ，２ｂの下端部、及び釣合おもりガイドレール３ａ，３ｂの下端部が固定されている。 The hoistway pit 21 is provided with a car buffer 23 and a counterweight buffer 24. Further, the lower end portions of the car guide rails 2a and 2b and the lower end portions of the counterweight guide rails 3a and 3b are fixed to the pit bottom surface 21a.
　また、昇降路ピット２１には、巻上機７及び制御盤８等の機器類を点検するためのピット足場装置２２が設けられている。ピット足場装置２２は、ピットプレート２５と、保守員が最下階乗場６ａからピットプレート２５へ降りる際に用いるピットタラップ２６と、保守員がピットプレート２５で作業する際に用いる作業タラップ２７とを有している。 Also, the hoistway pit 21 is provided with a pit scaffolding device 22 for checking equipment such as the hoisting machine 7 and the control panel 8. The pit scaffolding device 22 includes a pit plate 25, a pit trap 26 used when a maintenance worker descends from the lowest floor landing 6 a to the pit plate 25, and a work trap 27 used when a maintenance worker works on the pit plate 25. Have.
　ピットプレート２５は、保守員が乗る作業面２５ａを含む作業板部２５ｂと、作業板部２５ｂの周囲を囲むプレート枠２５ｃとを有している。ピットプレート２５は、作業板部２５ｂの作業面２５ａが昇降路ピット２１内に水平になるように設けられている。プレート枠２５ｃは、作業板部２５ｂの作業面２５ａから上方に立ち上がっている。ピットプレート２５は、ピット底面２１ａから最下階乗場６ａの床面９までの間に設けられている。また、ピットプレート２５は、昇降路ピット２１の深さに関わらず、最下階乗場６ａの床面９から設定された一定距離Ｌ下方に作業板部２５ｂの作業面２５ａがくるように設けられている。 The pit plate 25 has a work plate portion 25b including a work surface 25a on which maintenance personnel ride, and a plate frame 25c surrounding the work plate portion 25b. The pit plate 25 is provided so that the work surface 25 a of the work plate portion 25 b is horizontal in the hoistway pit 21. The plate frame 25c rises upward from the work surface 25a of the work plate portion 25b. The pit plate 25 is provided between the pit bottom surface 21a and the floor surface 9 of the lowest floor landing 6a. The pit plate 25 is provided so that the work surface 25a of the work plate portion 25b comes below a certain distance L set from the floor surface 9 of the lowest floor landing 6a regardless of the depth of the hoistway pit 21. ing.
　また、ピットプレート２５は、乗場６からかごガイドレール２ａ，２ｂまでの範囲の昇降路１の壁面に設けられている複数（この例では、２つ）の壁側支え部材３０と、かごガイドレール２ａ，２ｂのそれぞれに設けられた複数（この例では、２つ）のかごレール側支え部材３１と、釣合おもりガイドレール３ａ，３ｂのそれぞれに設けられた複数（この例では、２つ）のおもりレール側支え部材３２とにより支持されている。即ち、実施の形態１のピット支持部は、壁側支え部材３０とかごレール側支え部材３１とおもりレール側支え部材３２とを有している。 The pit plate 25 includes a plurality of (two in this example) wall-side support members 30 provided on the wall surface of the hoistway 1 in the range from the landing 6 to the car guide rails 2a and 2b, and a car guide rail. A plurality (two in this example) of the car rail side support members 31 provided in each of 2a and 2b and a plurality (two in this example) provided in each of the counterweight guide rails 3a and 3b It is supported by the weight rail side support member 32. That is, the pit support portion of the first embodiment includes the wall side support member 30, the car rail side support member 31, and the weight rail side support member 32.
　壁側支え部材３０は、昇降路ピット２１の乗場側壁面２１ｂに設けられている。また、壁側支え部材３０は、乗場６の出入口の幅方向について互いに距離を置いて設けられている。この例では、壁側支え部材３０が、ピットプレート２５を乗場側壁面２１ｂに接触させた状態で支持している。また、この例では、壁側支え部材３０として、断面略Ｌ字型のアングル材が用いられている。 The wall-side support member 30 is provided on the landing side wall surface 21 b of the hoistway pit 21. The wall-side support members 30 are provided at a distance from each other in the width direction of the entrance / exit of the hall 6. In this example, the wall-side support member 30 supports the pit plate 25 in a state where it is in contact with the landing side wall surface 21b. In this example, an angle member having a substantially L-shaped cross section is used as the wall-side support member 30.
　かごレール側支え部材３１及びおもりレール側支え部材３２は、昇降路１の高さ方向について最下階乗場６ａの床面９から壁側支え部材３０が設けられている同じ高さにそれぞれ設けられている。この例では、かごレール側支え部材３１及びおもりレール側支え部材３２として、壁側支え部材３０同様、断面略Ｌ字型のアングル材が用いられている。 The car rail side support member 31 and the weight rail side support member 32 are provided at the same height where the wall side support member 30 is provided from the floor surface 9 of the lowest floor landing 6a in the height direction of the hoistway 1. ing. In this example, as the car rail side support member 31 and the weight rail side support member 32, an angle member having a substantially L-shaped cross section is used, like the wall side support member 30.
　かごレール側支え部材３１は、各かごガイドレール２ａ，２ｂのかご４が係合する側とは反対側に固定されている。これにより、昇降路１の上方から下方に鉛直に投影したとき、かごレール側支え部材３１は、かごガイドレール２ａ，２ｂからかご４と反対側に突出している。 The car rail side support member 31 is fixed to the opposite side of the car guide rails 2a and 2b to the side on which the car 4 is engaged. Thus, when vertically projected downward from above the hoistway 1, the car rail side support member 31 protrudes from the car guide rails 2 a and 2 b to the side opposite to the car 4.
　おもりレール側支え部材３２も、かごレール側支え部材３１と同様に、各釣合おもりガイドレール３ａ，３ｂの釣合おもり５が係合する側とは反対側に固定されている。これにより、昇降路１の上方から下方に鉛直に投影したとき、おもりレール側支え部材３２も、釣合おもりガイドレール３ａ，３ｂから釣合おもり５と反対側に突出している。また、おもりレール側支え部材３２は、かご４と対向する釣合おもり５の面よりもかご４に向かって延びている。さらに、昇降路１の奥行方向についておもりレール側支え部材３２のかご４側端部は、かご４の真下にまで達している。また、おもりレール側支え部材３２は、壁側支え部材３０に対向する位置に設けられている。 Similarly to the car rail side support member 31, the weight rail side support member 32 is also fixed to the opposite side of the counterweight guide rails 3a and 3b to which the counterweight 5 is engaged. Thereby, when projected vertically from the upper side of the hoistway 1 to the lower side, the weight rail side support member 32 also protrudes from the counterweight guide rails 3a, 3b to the opposite side of the counterweight 5. Further, the weight rail side support member 32 extends toward the car 4 from the surface of the counterweight 5 facing the car 4. Further, the end portion of the weight rail side support member 32 in the depth direction of the hoistway 1 reaches just below the car 4. Further, the weight rail side support member 32 is provided at a position facing the wall side support member 30.
　作業板部２５ｂの作業面２５ａの大きさは、かご４を昇降路１の上方から下方に鉛直に投影したとき、かご４の投影範囲の少なくとも一部を含み、巻上機７及び制御盤８等の機器類の点検範囲を確保した大きさに設定されている。 The size of the work surface 25a of the work plate portion 25b includes at least a part of the projected range of the car 4 when the car 4 is vertically projected from above the hoistway 1 to the hoistway 7 and the control panel 8. It is set to a size that ensures the inspection range of the equipment.
　この例では、作業面２５ａの形状が、乗場６の出入口の幅方向のピットプレート２５の幅寸法Ｗ２を一辺とし、昇降路１の奥行方向のピットプレート２５の奥行寸法Ｄ２を他辺とした矩形の形状から、巻上機７を昇降路１の上方から下方に鉛直に投影した投影範囲を外した形状とされている。 In this example, the shape of the work surface 25a is a rectangle in which the width dimension W2 of the pit plate 25 in the width direction of the entrance / exit of the landing 6 is one side and the depth dimension D2 of the pit plate 25 in the depth direction of the hoistway 1 is the other side. Therefore, the hoisting machine 7 is vertically projected from the upper side to the lower side of the hoistway 1 so that the projection range is removed.
　また、この例では、乗場６の出入口の幅方向についてピットプレート２５の幅寸法Ｗ２は、乗場６側のかご４の幅寸法Ｗ１よりも長い。また、昇降路１の奥行方向についてピットプレート２５の奥行寸法Ｄ２は、かご４の奥行寸法Ｄ１よりも長い。さらに、かご４とピットプレート２５とを昇降路１の上方から下方に鉛直に投影したとき、かご４の乗場６側の端部よりもピットプレート２５の乗場６側の端部が乗場６側に近い位置に位置している。これにより、ピットプレート２５の大きさは、かご４とピットプレート２５とを昇降路１の上方から下方に鉛直に投影したとき、かご４の投影範囲の大半を含む大きさとなっている。 In this example, the width dimension W2 of the pit plate 25 in the width direction of the entrance / exit of the hall 6 is longer than the width dimension W1 of the car 4 on the hall 6 side. Further, the depth dimension D2 of the pit plate 25 in the depth direction of the hoistway 1 is longer than the depth dimension D1 of the car 4. Further, when the car 4 and the pit plate 25 are vertically projected from the upper side of the hoistway 1 downward, the end of the pit plate 25 on the landing 6 side is closer to the landing 6 side than the end of the car 4 on the landing 6 side. Located close. Accordingly, the size of the pit plate 25 is a size that includes most of the projection range of the car 4 when the car 4 and the pit plate 25 are vertically projected from above the hoistway 1 downward.
　図１及び図３に示すように、作業板部２５ｂの作業面２５ａには、かごガイドレール２ａ，２ｂのレールをピット底面２１ａまで通すための貫通孔４０が複数（この例では、２つ）設けられている。この例では、貫通孔４０の形状が、かごガイドレール２ａ，２ｂそれぞれのレールを通すことができる矩形の孔とされている。 As shown in FIGS. 1 and 3, the work surface 25a of the work plate portion 25b has a plurality of through holes 40 (two in this example) for passing the rails of the car guide rails 2a and 2b to the pit bottom surface 21a. Is provided. In this example, the shape of the through hole 40 is a rectangular hole through which each of the car guide rails 2a and 2b can pass.
　ピットタラップ２６としては、通常の梯子が用いられている。この例では、ピットタラップ２６は、巻上機７及び制御盤８等が設けられている同じ昇降路１の壁面に固定されている。ピットタラップ２６の下端部は、ピットプレート２５に接している。また、ピットタラップ２６の上部は、最下階乗場６ａの床面９よりも上方に位置している。 A normal ladder is used as the pit trapping 26. In this example, the pit trap 26 is fixed to the wall surface of the same hoistway 1 in which the hoisting machine 7 and the control panel 8 are provided. The lower end of the pit lap 26 is in contact with the pit plate 25. Moreover, the upper part of the pit lap | wrap 26 is located above the floor surface 9 of the lowest floor hall 6a.
　作業タラップ２７としては、保守員が巻上機７及び制御盤８等の機器に手が届かないとき等に使用される折りたたみ式の梯子（脚立）が用いられている。作業タラップ２７は、梯子が直線上に開かないものを用いている。作業タラップ２７は、固定されず、保守員が作業する場所に持ち運び可能である。 As the work trap 27, a folding ladder (stepladder) used when maintenance personnel cannot reach the equipment such as the hoisting machine 7 and the control panel 8 is used. As the work trap 27, a ladder whose ladder does not open on a straight line is used. The work trap 27 is not fixed and can be carried to a place where maintenance personnel work.
　かご緩衝器２３は、かご４の真下に配置されている。かご緩衝器２３は、昇降路ピット２１内にかご４が落下した際の衝撃を吸収する。かご緩衝器２３のピット底面２１ａからの高さは、支柱部材２８により調整されている。支柱部材２８は、下部支柱部２８ａと上部支柱部２８ｂとを有している。 The car shock absorber 23 is disposed directly below the car 4. The car shock absorber 23 absorbs an impact when the car 4 falls into the hoistway pit 21. The height of the car shock absorber 23 from the pit bottom surface 21 a is adjusted by the support member 28. The strut member 28 has a lower strut portion 28a and an upper strut portion 28b.
　下部支柱部２８ａは、かご４の真下で、ピット底面２１ａに固定されている。また、下部支柱部２８ａの上端部は、ピットプレート２５と接している。下部支柱部２８ａの長さは、ピット底面２１ａからピットプレート２５までの高さに合わせて設定されている。下部支柱部２８ａの上部には、ピットプレート２５を介して上部支柱部２８ｂが設けられている。下部支柱部２８ａと上部支柱部２８ｂとが互いに対向する面には、それぞれの固定用プレートが設けられている。この例では、下部支柱部２８ａと上部支柱部２８ｂとのそれぞれの固定用プレートが、ピットプレート２５を上下方向から挟んだ状態で、ボルトとナットとで固定されている。 The lower support column 28a is fixed to the pit bottom surface 21a just below the car 4. Further, the upper end portion of the lower column portion 28 a is in contact with the pit plate 25. The length of the lower support column 28a is set according to the height from the pit bottom surface 21a to the pit plate 25. An upper column part 28b is provided on the upper part of the lower column part 28a via a pit plate 25. Respective fixing plates are provided on the surfaces of the lower support portion 28a and the upper support portion 28b facing each other. In this example, the fixing plates for the lower support portion 28a and the upper support portion 28b are fixed with bolts and nuts with the pit plate 25 sandwiched from above and below.
　上部支柱部２８ｂの上端部には、かご緩衝器２３が設けられている。上部支柱部２８ｂは、ピットプレート２５からかご緩衝器２３までの高さを調整している。上部支柱部２８ｂとかご緩衝器２３とは、互いに対向する面に固定用プレートが設けられている。この例では、上部支柱部２８ｂとかご緩衝器２３とは、固定用プレートを介してボルトとナットとで固定されている。 A car shock absorber 23 is provided at the upper end of the upper support column 28b. The upper column part 28b adjusts the height from the pit plate 25 to the car shock absorber 23. The upper support column 28b and the car shock absorber 23 are provided with fixing plates on the surfaces facing each other. In this example, the upper support column 28b and the car shock absorber 23 are fixed by bolts and nuts via a fixing plate.
　これにより、ピットプレート２５は、下部支柱部２８ａにも支持されている。従って、ピットプレート２５は、壁側支え部材３０、かごレール側支え部材３１、おもりレール側支え部材３２、及び下部支柱部２８ａの計７ヵ所で支持されていることになる。 Thereby, the pit plate 25 is also supported by the lower support portion 28a. Therefore, the pit plate 25 is supported at a total of seven locations, that is, the wall side support member 30, the car rail side support member 31, the weight rail side support member 32, and the lower column portion 28a.
　釣合おもり緩衝器２４は、釣合おもり５の真下に配置されている。また、釣合おもり緩衝器２４は、ピット底面２１ａに固定されている。 The counterweight buffer 24 is disposed directly below the counterweight 5. Further, the counterweight buffer 24 is fixed to the pit bottom surface 21a.
　図４は、図２の緩衝器にかごが突き下げたときの側面図である。ピットプレート２５が最下階乗場６ａの床面９から設定された一定距離Ｌは、図４に示すように、昇降路ピット２１内に配置されたかご緩衝器２３にかご４が突き下げたとき、かご４の下部に搭載されているかご機器類（この例では、前垂れ）４ａと作業板部２５ｂの作業面２５ａとが干渉しない距離に設定してある。 FIG. 4 is a side view when the car is pushed down on the shock absorber of FIG. The fixed distance L in which the pit plate 25 is set from the floor 9 of the lowest floor landing 6a is as shown in FIG. 4 when the car 4 is pushed down to the car shock absorber 23 disposed in the hoistway pit 21. The car equipment (in this example, the front sag) 4a mounted on the lower part of the car 4 is set to a distance that does not interfere with the work surface 25a of the work plate part 25b.
　次に、保守点検時の手順を説明する。先ず、保守員は、最下階乗場６ａからピットタラップ２６を使用してピットプレート２５に降りる。次に、作業タラップ２７を使用して、最下階乗場６ａの床面９よりも上方に設置されている巻上機７及び制御盤８等の機器類を点検する。点検作業が終了した保守員が、昇降路ピット２１から出るとき、作業タラップ２７は、エレベータの通常運行の妨げにならないように、折り畳んでピットプレート２５上に倒して置いてもよいし、保守員が昇降路ピット２１から持ち出して、別の保管場所に収納するようにしてもよい。 Next, the procedure for maintenance inspection will be explained. First, the maintenance staff gets off the pit plate 25 from the lowest floor landing 6a using the pit turret 26. Next, using the work trap 27, equipment such as the hoisting machine 7 and the control panel 8 installed above the floor surface 9 of the lowest floor landing 6a is inspected. When the maintenance worker who has completed the inspection work exits from the hoistway pit 21, the work trap 27 may be folded and placed on the pit plate 25 so as not to interfere with the normal operation of the elevator. May be taken out from the hoistway pit 21 and stored in another storage location.
　このようなピット足場装置２２では、ピットプレート２５は、昇降路ピット２１の深さに関わらず、最下階乗場６ａの床面９から設定された一定距離Ｌ下方の乗場側壁面２１ｂに設けられているので、ピットプレート２５から巻上機７及び制御盤８等の機器類までの距離を一定に保つことができる。これにより、昇降路ピット２１の深さが深くなったときでも、ピットタラップ２６及び作業タラップ２７は同一のものを用いることができる。 In such a pit scaffolding device 22, the pit plate 25 is provided on the landing side wall surface 21 b below the fixed distance L set from the floor surface 9 of the lowest floor landing 6 a regardless of the depth of the hoistway pit 21. Thus, the distance from the pit plate 25 to the hoisting machine 7 and the control panel 8 can be kept constant. Thereby, even when the depth of the hoistway pit 21 becomes deep, the same pit trap 26 and work trap 27 can be used.
　また、ピットプレート２５が最下階乗場６ａの床面９から設定された一定距離Ｌは、昇降路ピット２１内に配置されたかご緩衝器２３にかご４が突き下げたときに、かご４の下部に搭載されているかご機器類４ａと作業板部２５ｂの作業面２５ａとが干渉しない距離と設定されているので、昇降路ピット２１の深さが最小のときにも、ピットタラップ２６及び作業タラップ２７は同一のものを用いることができる。 Further, the fixed distance L in which the pit plate 25 is set from the floor surface 9 of the lowest floor landing 6 a is such that when the car 4 is pushed down to the car shock absorber 23 disposed in the hoistway pit 21, Since the distance between the car equipment 4a mounted on the lower portion and the work surface 25a of the work plate portion 25b is set so as not to interfere with each other, the pit trap 26 and the work can be performed even when the depth of the hoistway pit 21 is minimum. The same thing can be used for the trap 27.
　さらに、ピットタラップ２６及び作業タラップ２７は同一のものを用いることができるので、収納場所も一定の大きさにすることができる。これにより、収納場所の大きさが大きくなることを防ぐことができる。 Furthermore, since the same pit trap 26 and work trap 27 can be used, the storage location can also be made constant. Thereby, it can prevent that the magnitude | size of a storage place becomes large.
　また、ピットプレート２５は、乗場６からかごガイドレール２ａ，２ｂまでの範囲の昇降路１の壁面に設けられている壁側支え部材３０に支持されているので、乗場側壁面２１ｂ側に近い位置に作業面２５ａが存在している。これにより、保守員は、最下階乗場６ａから容易にピットプレート２５に降りることができる。 Since the pit plate 25 is supported by the wall-side support member 30 provided on the wall surface of the hoistway 1 in the range from the landing 6 to the car guide rails 2a and 2b, the position is close to the landing side wall surface 21b side. There is a work surface 25a. As a result, the maintenance staff can easily get off the pit plate 25 from the lowest floor hall 6a.
　さらに、作業板部２５ｂの作業面２５ａの大きさは、巻上機７及び制御盤８等の機器類の点検範囲を確保した大きさに設定されているので、保守員は、ピットプレート２５上で全ての点検を行うことができる。 Furthermore, since the size of the work surface 25a of the work plate portion 25b is set to a size that secures the inspection range of equipment such as the hoisting machine 7 and the control panel 8, the maintenance staff All inspections can be done with.
　また、かごガイドレール２ａ，２ｂのそれぞれに設けられたかごレール側支え部材３１にもピットプレート２５を設けているので、乗場側壁面２１ｂに設けられている壁側支え部材３０のみで支えるときよりもピットプレート２５を支える強度を上げることができる。 Further, since the pit plate 25 is also provided on the car rail side support member 31 provided on each of the car guide rails 2a and 2b, it is more than when supported only by the wall side support member 30 provided on the landing side wall surface 21b. Also, the strength for supporting the pit plate 25 can be increased.
　さらに、釣合おもりガイドレール３ａ，３ｂのそれぞれに設けられたおもりレール側支え部材３２にもピットプレート２５を設けているので、作業板部２５ｂの作業面２５ａの面積を大きく取ったピットプレート２５を用いるとき、ピットプレート２５を支える強度を上げることができる。さらに、おもりレール側支え部材３２は、壁側支え部材３０に対向する位置に設けられているので、昇降路１の奥行方向についてピットプレート２５の両端部を支えることができる。これにより、ピットプレート２５を支える安定性の向上を図ることができる。 Further, since the pit plate 25 is also provided on the weight rail side support member 32 provided on each of the counterweight guide rails 3a and 3b, the pit plate 25 having a large area of the work surface 25a of the work plate portion 25b. When is used, the strength for supporting the pit plate 25 can be increased. Furthermore, since the weight rail side support member 32 is provided at a position facing the wall side support member 30, both end portions of the pit plate 25 can be supported in the depth direction of the hoistway 1. Thereby, the stability which supports the pit plate 25 can be improved.
　また、ピット底面２１ａに固定された下部支柱部２８ａと、ピットプレート２５に置かれた上部支柱部２８ｂとが、ピットプレート２５を介して固定されているので、作業板部２５ｂの作業面２５ａの面積を大きく取ったピットプレート２５を用いるとき、ピットプレート２５の中央部を支えることができる。これにより、ピットプレート２５を支える強度を得るとともに、さらにピットプレート２５の安定性の向上を図ることができる。 Moreover, since the lower column part 28a fixed to the pit bottom surface 21a and the upper column part 28b placed on the pit plate 25 are fixed via the pit plate 25, the work surface 25a of the work plate part 25b is fixed. When the pit plate 25 having a large area is used, the central portion of the pit plate 25 can be supported. Thereby, the strength for supporting the pit plate 25 can be obtained, and the stability of the pit plate 25 can be further improved.
　ピットプレート２５に、かごガイドレール２ａ，２ｂを固定すると、ピットプレート２５に、かごガイドレール２ａ，２ｂ及びかご４等の重量がかかるので、ピットプレート２５は、強度が必要になるうえに、製造コストの増加に繋がるおそれがある。しかし、ピットプレート２５には、かごガイドレール２ａ，２ｂのレールをピット底面２１ａまで通すための貫通孔４０が設けられているので、かごガイドレール２ａ，２ｂは、貫通孔４０を通過し、ピット底面２１ａに固定することができる。このため、ピットプレート２５は、保守作業時における強度を有していればよいので、製造コストの増加を抑制することができる。 When the car guide rails 2a, 2b are fixed to the pit plate 25, the car guide rails 2a, 2b, the car 4, etc. are loaded on the pit plate 25. Therefore, the pit plate 25 is not only strong but also manufactured. There is a risk of increasing the cost. However, since the pit plate 25 is provided with a through hole 40 for passing the rails of the car guide rails 2a and 2b to the pit bottom surface 21a, the car guide rails 2a and 2b pass through the through hole 40 and pass through the pit. It can be fixed to the bottom surface 21a. For this reason, since the pit plate 25 should just have the intensity | strength at the time of a maintenance work, the increase in manufacturing cost can be suppressed.
　なお、上記の例では、ピットプレート２５を支持するために、壁側支え部材３０、かごレール側支え部材３１、おもりレール側支え部材３２、及び下部支柱部２８ａの計７ヵ所を設けているが、必ずしも全てを設けなくてもよく、一部を省略してもよい。即ち、プレート支持部の位置及び数は、ピットプレート２５の強度及び安定性を考慮し、設計に合わせて選択が可能である。 In the above example, in order to support the pit plate 25, the wall side support member 30, the car rail side support member 31, the weight rail side support member 32, and the lower support portion 28a are provided in total of seven locations. However, it is not always necessary to provide all of them, and some of them may be omitted. That is, the position and number of the plate support portions can be selected according to the design in consideration of the strength and stability of the pit plate 25.
　また、上記の例では、壁側支え部材３０、かごレール側支え部材３１、及びおもりレール側支え部材３２を断面略Ｌ字型のアングル材としているが、これに限るものではない。例えば、断面略矩形のブロックを用いてもよい。 In the above example, the wall-side support member 30, the car rail-side support member 31, and the weight rail-side support member 32 are angle members having a substantially L-shaped cross section, but are not limited thereto. For example, a block having a substantially rectangular cross section may be used.
　さらに、上記の例では、ピットタラップ２６が、昇降路１の壁面に固定されているが、ピットタラップ２６を固定せずに、昇降路１の壁面に立て掛けていてもよい。 Furthermore, in the above example, the pit trap 26 is fixed to the wall surface of the hoistway 1, but the pit trap 26 may be leaned against the wall surface of the hoistway 1 without being fixed.
　また、上記の例では、壁側支え部材３０を２つ設けているが、壁側支え部材３０は、１つ、または３つ以上設けてもよい。 In the above example, two wall-side support members 30 are provided, but one or three or more wall-side support members 30 may be provided.
　さらに、上記の例では、壁側支え部材３０が、乗場側壁面２１ｂに設けられているが、かご４の左右の側面に対向する昇降路１の壁のかごガイドレール２ａ，２ｂよりも乗場６側に設けられていてもよい。 Furthermore, in the above example, the wall-side support member 30 is provided on the landing side wall surface 21 b, but the hall 6 is more than the car guide rails 2 a and 2 b on the wall of the hoistway 1 facing the left and right side surfaces of the car 4. It may be provided on the side.
　また、ピットプレート２５には、昇降路ピット２１のピットプレート２５よりも下方の部分に降りるための降り口を設けていてもよい。 Further, the pit plate 25 may be provided with an exit for getting down to a portion below the pit plate 25 of the hoistway pit 21.

Claims (7)

  1. 　昇降路ピット内のかごガイドレールよりも乗場側の昇降路の壁に設けられている壁側支え部材を含む複数のプレート支持部、及び
    　上記昇降路ピット内で上記プレート支持部により支持されており、かつ最下階乗場の床面よりも下方でピット底面よりも上方に位置し保守員が乗る作業面を有しているピットプレート
    　を備えているエレベータのピット足場装置。     A plurality of plate support parts including a wall side support member provided on the wall of the hoistway on the landing side of the car guide rail in the hoistway pit, and supported by the plate support part in the hoistway pit. A pit scaffolding device for an elevator, comprising a pit plate having a work surface on which a maintenance person rides and is positioned below the floor surface of the lowermost landing and above the bottom surface of the pit.
  2. 　上記プレート支持部は、上記かごガイドレールに設けられたかごレール側支え部材を有している請求項１に記載のエレベータのピット足場装置。 The elevator pit scaffolding apparatus according to claim 1, wherein the plate support portion includes a car rail side support member provided on the car guide rail.
  3. 　上記プレート支持部は、釣合おもりガイドレールに設けられたおもりレール側支え部材を有している請求項１または請求項２に記載のエレベータのピット足場装置。 The elevator pit scaffolding apparatus according to claim 1 or 2, wherein the plate support portion includes a weight rail side support member provided on a counterweight guide rail.
  4. 　かご緩衝器が上部に設けられている支柱部材は、上記ピット底面に設けられている下部支柱部と、上記下部支柱部の上部に設けられている上部支柱部とを有し、
    　上記ピットプレートは、上記下部支柱部と上記上部支柱部とに挟まれている請求項１～請求項３のいずれか一項に記載のエレベータのピット足場装置。     The strut member on which the car shock absorber is provided at the top has a lower strut portion provided on the bottom surface of the pit, and an upper strut portion provided on the top of the lower strut portion,
    The elevator pit scaffolding device according to any one of claims 1 to 3, wherein the pit plate is sandwiched between the lower support column and the upper support column.
  5. 　上記ピットプレートには、上記かごガイドレールを通す貫通孔が設けられており、
    　上記貫通孔に通された上記かごガイドレールは、上記ピット底面に固定されている請求項２に記載のエレベータのピット足場装置。     The pit plate is provided with a through hole through which the car guide rail passes.
    The elevator pit scaffolding apparatus according to claim 2, wherein the car guide rail passed through the through hole is fixed to the bottom surface of the pit.
  6. 　上記作業面は、上記昇降路ピット内に設けられている上記かご緩衝器をかごが突き下げても上記かごの下部に搭載されているかご機器類が上記作業面に干渉しない距離だけ、上記最下階乗場の床面よりも下方に位置している請求項１～請求項５のいずれか一項に記載のエレベータのピット足場装置。 The work surface is positioned at a distance that does not interfere with the work equipment mounted on the lower part of the car even if the car pushes down the car shock absorber provided in the hoistway pit. The elevator pit scaffolding apparatus according to any one of claims 1 to 5, wherein the elevator pit scaffolding apparatus is located below a floor surface of a lower floor landing.
  7. 　上記作業面の大きさは、上記かごと上記ピットプレートとを上記昇降路の上方から下方に鉛直に投影したとき、上記かごの投影範囲の少なくとも一部を含み、上記昇降路内に設けられた機器類の点検範囲を確保した大きさに設定されている請求項１～請求項６のいずれか一項に記載のエレベータのピット足場装置。 The size of the work surface includes at least a part of the projected range of the car and is provided in the hoistway when the car and the pit plate are vertically projected from the upper side to the lower side of the hoistway. The elevator pit scaffolding apparatus according to any one of claims 1 to 6, wherein the elevator pit scaffolding apparatus is set to a size that secures an inspection range of equipment.
PCT/JP2014/063458 2013-05-22 2014-05-21 Elevator pit scaffolding device WO2014189074A1 (en)

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CN111148710A (en) * 2017-09-29 2020-05-12 三菱电机株式会社 Pit ladder device for elevator and landing door device for elevator

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JP2017218258A (en) * 2016-06-06 2017-12-14 三菱電機ビルテクノサービス株式会社 Scaffold for elevator
CN111148710A (en) * 2017-09-29 2020-05-12 三菱电机株式会社 Pit ladder device for elevator and landing door device for elevator
CN111148710B (en) * 2017-09-29 2022-06-17 三菱电机株式会社 Pit ladder device for elevator and landing door device for elevator

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