JPWO2004022471A1

JPWO2004022471A1 - Elevator equipment

Info

Publication number: JPWO2004022471A1
Application number: JP2004534064A
Authority: JP
Inventors: 濱口　修喜; 修喜濱口
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2002-09-03
Filing date: 2002-09-03
Publication date: 2005-12-22
Anticipated expiration: 2022-09-03
Also published as: CN1297468C; JP4216252B2; EP1535875B1; CN1582252A; EP1535875A1; WO2004022471A1; EP1535875A4

Abstract

この発明によるエレベータ装置は、昇降路（１）上部に設置された支持台（３０）に、駆動装置（１０）と遊び車（１４）が、駆動シーブ（１２）と遊び車（１４）の回転軸が鉛直方向になるように配置されている。主索（２０）は、並列な２通りの経路を有し、それぞれ独立している第１のロープ（２１）と第２のロープ（２２）とが備えられ、一端は、共に釣り合いおもり（７）に結合され、釣り合いおもり用そらせ車（１８）により方向転換されており、中間部は、駆動装置（１０）に巻き掛けられ、遊び車（１４）を経由して再び駆動装置（１０）に巻き掛けられており、他端は、それぞれ第１のかご用そらせ車（１６）、第２のかご用そらせ車（１７）により方向転換されて、かご（５）の対向する側面でそれぞれかご（５）に結合されている。In the elevator apparatus according to the present invention, a driving device (10) and a play car (14) are mounted on a support base (30) installed on an upper part of a hoistway (1), and a drive sheave (12) and a play car (14) are rotated. The shaft is arranged in the vertical direction. The main rope (20) has two parallel paths, and is provided with a first rope (21) and a second rope (22) that are independent from each other, and one end of each is connected with a counterweight (7 ) And the direction is changed by the counterweight deflector (18), and the intermediate portion is wound around the drive device (10), and again passes through the play wheel (14) to the drive device (10). The other ends are turned by the first car deflector (16) and the second car deflector (17), respectively, and the car (5) 5).

Description

この発明は、駆動装置が昇降路内の上部に配置されているエレベータ装置に関するものである。 The present invention relates to an elevator apparatus in which a drive device is disposed at an upper portion in a hoistway.

近年、建物の外観や高さによる制限などに伴うエレベータの設置スペースの制約から、機械室を必要としないエレベータ、例えば、駆動装置及び制御盤を昇降路内に設置して機械室を設けないエレベータが普及してきている。そのため、昇降路内の狭いスペースを有効利用して、駆動装置、制御盤などのエレベータ機器を適切に配置する必要があり、例えば、国際出願の国際公開番号ＷＯ０２／１６２４７Ａ１号公報には、昇降路内の上部へ駆動装置が配置されている１：１ローピング式のエレベータが示されている。しかし、従来のエレベータ装置では、駆動シーブへの主索の巻き付け角度が少なく、駆動シーブと主索との摩擦力を確保する手段として、表皮を高摩擦材で構成する高価な合成繊維を用いた特殊ロープを使用したり、また、駆動シーブにも主索との摩擦を上げる切り込みをつけた特殊なアンダーカット溝を採用したりしていた。このために、主索がアンダーカット溝に食い込み、傷ついて寿命を損なうという課題があった。
更に、従来のかごはかご上部に設置された上梁により１箇所で支持されていたため、その吊部相当分の昇降路の上下寸法を確保しなければならないことが課題となっていた。
この発明は、上記のような問題点を解決する事を課題としてなされたものであり、汎用ロープを使用して、安価にして安定した主索の寿命を確保することを目的とする。また、かごの吊り下げ方を工夫して、昇降路の上下寸法を最小に構成することを目的とする。In recent years, elevators that do not require a machine room due to restrictions on the installation space of the elevator due to restrictions on the appearance and height of the building, for example, elevators that do not have a machine room by installing a drive unit and a control panel in the hoistway Has become widespread. Therefore, it is necessary to appropriately arrange elevator devices such as a driving device and a control panel by effectively using a narrow space in the hoistway. For example, in International Publication No. WO 02/16247 A1 of International Application, A 1: 1 roping elevator is shown in which the drive is located at the top of the hoistway. However, in the conventional elevator apparatus, the winding angle of the main rope around the drive sheave is small, and as a means for ensuring the frictional force between the drive sheave and the main rope, an expensive synthetic fiber whose skin is made of a high friction material is used. A special rope was used, and the drive sheave also used a special undercut groove with a notch that increased friction with the main rope. For this reason, there has been a problem that the main rope bites into the undercut groove and is damaged to deteriorate the life.
Further, since the conventional car is supported at one place by the upper beam installed on the upper part of the car, it has been a problem to ensure the vertical dimension of the hoistway corresponding to the hanging part.
An object of the present invention is to solve the above-described problems, and an object of the present invention is to secure a stable main rope life at a low cost by using a general-purpose rope. It is another object of the present invention to devise a way to suspend a car to minimize the vertical dimension of the hoistway.

この発明のエレベータ装置は、昇降路上部に設置された支持台に取り付けられ、エレベータ主索が巻き掛けられた駆動シーブと駆動シーブを回転駆動する電動機を有し、少なくとも駆動シーブの回転軸が鉛直方向になるように配置されている駆動装置と、主索により昇降路内に吊り下げられ駆動装置により昇降されるかご及び釣り合いおもりとを備えているエレベータ装置において、駆動装置から所定の距離をおいて回転軸が鉛直方向になるように設置された遊び車と、一端が釣り合いおもりに結合され、中間部が駆動シーブに巻き掛けられた後、遊び車に巻き掛けられ更に駆動シーブに巻き掛けられて、他端がかごに結合された主索が備えられている。また、支持台に配置され、駆動シーブからかごに至る主索を水平方向から鉛直方向へ方向転換させるかご用そらせ車と、同様に支持台に配置され、駆動シーブから釣り合いおもりに至る主索を水平方向から鉛直方向へ方向転換させる釣り合いおもり用そらせ車とが備えられている。そして、この駆動装置は径方向の寸法に比して回転軸方向の厚さが小さく形成されており、駆動シーブは、主索が巻き掛けられるＵ溝を有し、このＵ溝の底部半円形部の直径を主索の直径に近似する直径に形成されている。また、駆動装置は、昇降路の後部隅に近接して配置されている。
また、主索は、並列な２通りの経路を有し、それぞれ独立している第１のロープと第２のロープとが備えられている。そして、かご用そらせ車は、第１のロープ、第２のロープに対応して、それぞれ第１のかご用そらせ車、第２のかご用そらせ車が備えられており、互いに離れて且つ昇降路の鉛直投影面上で少なくとも一部がかごと重なるように配置されている。尚、釣り合いおもり用そらせ車についても、昇降路の鉛直投影面上で少なくとも一部が釣り合いおもりと重なるように配置されている。ここで、第１のロープ、第２のロープは共に、一端は駆動シーブから釣り合いおもり用そらせ車で方向転換され、釣り合いおもりに結合されている。他端については、第１のロープ、第２のロープが、駆動シーブからそれぞれ第１のかご用そらせ車、第２のかご用そらせ車で方向転換され、第１のロープと第２のロープの端部が、かごの対向する側面底部でそれぞれかごに結合されている。また、好ましくは、かごの重心を挟んで対向する位置でそれぞれかごに結合されている。
また、この発明のエレベータ装置は、遊び車が、駆動シーブからかご用そらせ車に至る主索と、駆動シーブから釣り合いおもり用そらせ車に至る主索との間に挟まれるように配置されている。
また、この発明のエレベータ装置は、かごを制御するための制御盤と調速機とを備え、制御盤、調速機、遊び車は、駆動装置、またはかご用そらせ車及び釣り合いおもり用そらせ車のいずれかの最大高さ寸法の範囲内に収まるように配置されている。
また、この発明のエレベータ装置は、かごを案内する主ガイドレールと釣り合いおもりを案内する副ガイドレールとを備え、支持台は主ガイドレール及び副ガイドレール、または昇降路壁の少なくともいずれかにより支持されている。また、この好適な例としては、支持台は、支持台を支持する主ガイドレール及び副ガイドレール、または昇降路壁との間に防振材を介在させて設置されている。
以上のような発明によれば、駆動装置から所定の位置に遊び車を配置することで、主索の駆動シーブへの巻き付け角を増やせ、主索と駆動シーブ間に充分な摩擦力の確保が容易となる為、高摩擦の特殊な主索を用いなくても汎用の主索が使えるようになり、安価にして安定した主索の寿命の確保が可能となる。その上、主索の保守・点検が容易となる。An elevator apparatus according to the present invention includes a drive sheave mounted on a support base installed at an upper part of a hoistway, and an electric motor that rotationally drives a drive sheave around which an elevator main rope is wound, and at least a rotation shaft of the drive sheave is vertical. In an elevator apparatus comprising a drive device arranged in a direction, a car suspended in a hoistway by a main rope and lifted and lowered by the drive device, and a counterweight, a predetermined distance from the drive device is maintained. And one end is coupled to the counterweight and the intermediate part is wrapped around the drive sheave, and then wrapped around the play sheave and further around the drive sheave. And a main rope having the other end coupled to the car. In addition, the main rope from the drive sheave to the counterweight is arranged on the support base, and the main rope from the drive sheave to the counterweight is also arranged on the support base to change the main rope from the drive sheave to the car from the horizontal direction to the vertical direction. A counterweight deflector for changing the direction from the horizontal direction to the vertical direction is provided. The drive device is formed so that the thickness in the rotation axis direction is smaller than the radial dimension, and the drive sheave has a U-groove around which the main rope is wound, and the bottom semicircular shape of the U-groove The diameter of the part is formed to a diameter that approximates the diameter of the main rope. Moreover, the drive device is disposed close to the rear corner of the hoistway.
In addition, the main rope has two parallel paths and is provided with a first rope and a second rope that are independent of each other. The car deflecting car is provided with a first car deflecting car and a second car deflecting car corresponding to the first rope and the second rope, respectively, and is separated from each other and the hoistway Are arranged so that at least a part thereof overlaps the vertical projection plane. Note that the counterweight deflector is also arranged so that at least a part of the counterweight overlaps with the counterweight on the vertical projection plane of the hoistway. Here, one end of each of the first rope and the second rope is redirected from the drive sheave by a counterweight deflector, and is coupled to the counterweight. For the other end, the first rope and the second rope are redirected from the drive sheave by the first car deflector and the second car deflector, respectively. Ends are respectively joined to the car at opposite side bottoms of the car. In addition, preferably, the car is coupled to the car at positions facing each other across the center of gravity of the car.
Moreover, the elevator apparatus of this invention is arrange | positioned so that a play vehicle may be pinched | interposed between the main rope which leads from a drive sheave to a car deflecting vehicle, and the main rope which leads from a drive sheave to a counterweight deflector. .
The elevator apparatus according to the present invention includes a control panel and a speed governor for controlling a car. The control panel, the speed governor, and the play car are a drive device, a car sled car, and a counterweight sled car. Are arranged so as to be within the range of the maximum height dimension.
The elevator apparatus of the present invention includes a main guide rail for guiding the car and a sub guide rail for guiding the counterweight, and the support base is supported by at least one of the main guide rail and the sub guide rail, or the hoistway wall. Has been. As a preferable example, the support base is installed with a vibration isolating material interposed between the main guide rail and the sub guide rail that support the support base, or the hoistway wall.
According to the invention as described above, by arranging the play wheel at a predetermined position from the drive device, the winding angle of the main rope around the drive sheave can be increased, and sufficient frictional force can be secured between the main rope and the drive sheave. Since it becomes easy, a general-purpose main rope can be used without using a special main rope with high friction, and a stable main rope life can be secured at a low cost. In addition, maintenance and inspection of the main rope becomes easy.

第１図は、本発明の実施の形態１によるエレベータ装置の配置例を示し、エレベータ装置を上方から見下ろした平面図である。
第２図は、本発明の実施の形態１によるエレベータ装置の配置例を示し、エレベータ装置を水平方向から見た部分立面図である。
第３図は、この発明で用いる主索が巻き掛けられる駆動シーブの溝の従来の形状と本発明の形状を示す断面図である。
第４図は、本発明の実施の形態２によるエレベータ装置の配置例を示す平面図である。
第５図は、本発明の実施の形態３によるエレベータ装置の配置例を示す平面図である。
第６図は、本発明の実施の形態３によるエレベータ装置の配置例を示す平面図である。FIG. 1 is a plan view of an elevator apparatus according to Embodiment 1 of the present invention, as viewed from above.
FIG. 2 is a partial elevation view showing the elevator apparatus according to the first embodiment of the present invention, as viewed from the horizontal direction.
FIG. 3 is a sectional view showing the conventional shape of the groove of the drive sheave around which the main rope used in the present invention is wound and the shape of the present invention.
FIG. 4 is a plan view showing an arrangement example of the elevator apparatus according to the second embodiment of the present invention.
FIG. 5 is a plan view showing an arrangement example of the elevator apparatus according to Embodiment 3 of the present invention.
FIG. 6 is a plan view showing an arrangement example of the elevator apparatus according to Embodiment 3 of the present invention.

本発明をより詳細に説述するために、添付の図面に従ってこれを説明する。
実施の形態１．
第１図、第２図は、本発明の実施の形態１による機械室レスタイプのエレベータ装置の配置例を示す図であり、第１図はエレベータ装置を上方から見下ろした平面図、第２図はエレベータ装置を水平方向から見た部分立面図で、それぞれエレベータ装置要部を示す概念図である。
図において、昇降路１内には、昇降路１の壁面に取り付けられたレールブラケット４により支持された一対の主（かご用）ガイドレール２、及び他の一対の副（釣り合いおもり用）ガイドレール３が配置されている。かご５は、主ガイドレール２に案内されて昇降路１内を昇降され、釣り合いおもり７は副ガイドレール３に案内されて昇降路１内を昇降される。
かご５には第１図の平面図に示す如く昇降路前部に出入口ドア５ａがあり、主ガイドレール２はかご出入口面と直交するかごの両側面の側に配置され、副ガイドレール３は、かご出入口に対向する背面の側に配置されている。また、かご５には、主ガイドレール２に係合する複数のガイドシュー８が設けられており、釣り合いおもり７には、副ガイドレール３に係合する複数のガイドシュー９が設けられている。主ガイドレール２、及び副ガイドレール３のそれぞれの上端部には、支持台３０を取り付けるための支持台ブラケット３１が備えられており、支持台３０は、この支持台ブラケット３１に防振材３２を介して取り付けられている。支持台３０は、直に支持台ブラケット３１に取り付けても良いが、駆動装置１０が発する振動を主ガイドレール２、及び副ガイドレール３からレールブラケット４を介して昇降路壁部より建物に伝わるのを防止するため、支持台ブラケット３１との間に防振材３２を介在させて用いるのが好ましい。
エレベータ主索２０が巻き掛けられ回転軸が鉛直方向になるように構成された駆動シーブ１２と、駆動シーブ１２を回転駆動する電動機１１とを備えた駆動装置１０は、その外形を径方向の寸法に比して回転軸方向の厚さを小さく形成した薄形タイプである。遊び車１４は、駆動シーブ１２と同じく回転軸が鉛直方向になるように配置されている。駆動装置１０、遊び車１４は支持台３０に搭載され、駆動装置１０は、かご５のコーナー部の上方に配置され、遊び車１４は駆動装置１０から所定の距離をおいて配置されている。つまり、駆動装置１０は昇降路１の隅に寄せて配置され、遊び車１４は昇降路１の他の隅に寄せて配置されている。更に付け加えると、第１図では、駆動装置１０が、ローピング上好ましい位置（主索をシーブ類に巻き掛けていく過程において、主索が交差し干渉が生じる恐れのない位置）である昇降路の後部隅に近接して配置されている。
尚、この実施の形態では、遊び車１４は、駆動装置１０と同じ支持台３０に搭載されている例を示したが、遊び車１４は、支持台３０とは別に設けられた支持台に搭載されていても良い。
次に、主索２０は、独立した第１のロープ２１と第２のロープ２２とから成る並列な２通りの経路を有しており、第１のロープ２１、第２のロープ２２はそれぞれ複数本から成る単位ロープの組により構成されている。
この第１のロープ２１、第２のロープ２２を有した主索２０の中間部は、駆動シーブ１２に巻き掛けられた後、遊び車１４に巻き掛けられ、更に駆動シーブ１２に再び巻き掛けられている。主索２０の一端は、駆動シーブ１２から釣り合いおもり用そらせ車１８によって、主索２０が水平方向から鉛直方向に方向転換され、釣り合いおもり７に至っている。すなわち、駆動シーブ１２から遊び車１４に巻き掛けられ、更に駆動シーブ１２に巻き掛けられ、釣り合いおもり用そらせ車１８を経て釣り合いおもり７に至る間は、第１のロープ２１と第２のロープ２２とは平行で主索２０を形成している。
そして、第１のロープ２１、第２のロープ２２は共に、一端はロープシャックル２６及びコイルばねを用いた緩衝材２７を介して釣り合いおもり７の上梁２９に接続されている。
また、主索２０の他端、すなわち駆動シーブ１２からかご５に至る他端は、第１のロープ２１と第２のロープ２２とが互いに離れ、それぞれ第１のかご用そらせ車１６、第２のかご用そらせ車１７によって、第１のロープ２１、第２のロープ２２が水平方向から鉛直方向に方向転換され、かご５の所定部分に結合されている。この他端では、第１のロープ２１、第２のロープ２２が、それぞれロープシャックル２４及びコイルばねを用いた緩衝材２５を介して、かご５の底部でかご５の重心を挟んで対向する位置に設けられている２箇所のかごブラケット６に接続されている。
これにより、従来例のように、かご５の上部に吊部を設ける必要がなく、かご５の吊部相当のスペース分だけ昇降路１の上下寸法を縮小することができる。その上、従来のかご５上部での１点支持に対し、この発明ではかご５の底部での２点支持となるため、かご５上部の構造部材の強度を低減できることとなり、かご５の軽量化及び製作コストも低減できる。
尚、この実施の形態では、好適な一例として、かご５は、かご５底部で支持されているが、かご５の上面より下方の２個所で支持されていれば、昇降路１の上下寸法の縮小が実現できるため、支持部はかご５の対向する側面であるなら、支持位置はどこでも良い。
次に、上述のように本実施の形態においては、かご用そらせ車として、第１のロープ２１、第２のロープ２２に対応して、それぞれ第１のかご用そらせ車１６、第２のかご用そらせ車１７が備えられており、互いに離れて且つ昇降路１の鉛直投影面上で少なくとも一部がかご５と重なるように配置されている。また、第１のかご用そらせ車１６、第２のかご用そらせ車１７は、それぞれロープシャックル２４の上方に位置している。すなわち、第１のかご用そらせ車１６、第２のかご用そらせ車１７は、その大部分が鉛直投影面上でかご５と重なるように配置され、したがって、かご５と昇降路壁との距離を大きく取る必要がないように、（昇降路１の平面を拡大する必要がないように）配置されている。
釣り合いおもり用そらせ車１８は、昇降路１の鉛直投影面上で少なくとも一部が釣り合いおもり７と重なるように配置されている。尚、第１のかご用そらせ車１６、第２のかご用そらせ車１７、釣り合いおもり用そらせ車１８は支持台３０に設置されている。
ここで、遊び車１４は、駆動シーブ１２から第１のかご用そらせ車１６に至る主索２０（第１のロープ２１）と、駆動シーブ１２から釣り合いおもり用そらせ車１８に至る主索２０との間に挟まれるように配置されている。
つまり、駆動シーブ１２、遊び車１４、第１のかご用そらせ車１６、第２のかご用そらせ車１７、釣り合いおもり用そらせ車１８に対して、それらが構成されている順番に主索２０を巻き掛けていく過程で、主索２０が交差し、干渉が生じる恐れが無いように配置することができる。また、かご５をかご５の対向する側面で吊る際には、かご５の重心を挟んで対向する位置で吊ることが望ましく、そうした場合にかご５の２箇所の吊部は、第１図のように昇降路１を鉛直方向から見て昇降路１のほぼ中央の側壁面付近（主ガイドレール２の近傍）となる。そのため、上記のように遊び車１４を配置することによって、駆動装置１０、遊び車１４、第１のかご用そらせ車１６、第２のかご用そらせ車１７、釣り合いおもり用そらせ車１８といった支持台３０に設置されている昇降路頂部設置機器が、昇降路１を鉛直方向から見て、第１のかご用そらせ車１６と第２のかご用そらせ車１７を結んだ線を基準にして、昇降路１の片側に収納することができ、昇降路１上部の省スペース化、及び支持台３０のコンパクト化、保守スペースの確保が実現できる。
また、上述の説明による配置が好適な遊び車１４の配置場所の例であるが、エレベータ装置のレイアウトの都合によっては、遊び車１４は、駆動シーブ１２から第２のかご用そらせ車１７に至る主索２０（第２のロープ２２）と、駆動シーブ１２から釣り合いおもり用そらせ車１８に至る主索２０との間（具体的には、駆動シーブ１２から第１のかご用そらせ車１６に至る主索２０（第１のロープ２１）と、駆動シーブ１２から第２のかご用そらせ車１７に至る主索２０（第２のロープ２２）との間）に挟まれるように配置されていても良い。
また、このエレベータ装置には、かご５の昇降を制御するための制御盤３３と調速機３４が支持台３０に取り付けられており、これらの制御盤３３、調速機３４、及び遊び車１４は、駆動装置１０、第１のかご用そらせ車１６、第２のかご用そらせ車１７、釣り合いおもり用そらせ車１８のいずれかの最大高さ寸法の範囲内に収まるように配置されている。なお、第２図では、駆動装置１０の上下幅内に収まるように配置されている。
第３図は、主索２０が巻き掛けられる駆動シーブの溝の従来の形状と本発明の形状を示す断面図である。
第３図において、従来形状の駆動シーブ１３は、主索２３が接触する部分に特殊なアンダーカット溝と呼ばれる溝が設けられており、その溝に主索２３が食い込むことで摩擦力を大きくできるが、主索２３の磨耗が大きくなり寿命が短くなるという欠点がある。そこで、本形状の駆動シーブ１２は、主索２０が巻き掛けられるＵ溝を有し、このＵ溝の底部半円形部の直径を主索２０の直径に近似する直径に形成している。そのため、駆動シーブ１２と主索２０との接触面積が大きくとれるので面圧を下げることができ、主索２０の寿命の面でも有利である。
以上の説明より、この実施の形態において、主索２０を駆動シーブ１２に巻き掛けた後、遊び車１４に巻き掛け、更に駆動シーブ１２に再び巻き掛けることにより、駆動シーブ１２への主索２０の接触量を示す巻き付け角度が増え、所定のトラクションを得る事が容易となる。
これにより、従来の主索２３として、合成繊維を用いた高摩擦の特殊な主索を用いて、更に特殊なアンダーカット溝を設けた駆動シーブ１３の組み合わせによりトラクションを上げる方式から、鋼製の汎用主索２０と、その主索２０が巻き掛けられるＵ溝を有し、このＵ溝の底部半円形部の直径が主索２０の直径に近似する直径で形成された駆動シーブ１２の組み合わせによって、必要とするトラクションを得る事ができ、主索２０の高寿命化と、更には製作・保守時のコスト削減にもなる。
また、この実施の形態では、駆動装置１０は、かご５のコーナー部の上方に配置され、遊び車１４の直径は、一般的に駆動シーブ１２の直径と同径か、若しくはその９割程度に形成されており、駆動装置１０から所定の距離をおいて配置されている。つまり、駆動シーブ１２は、他のシーブ（遊び車１４、第１のかご用そらせ車１６、第２のかご用そらせ車１７、釣り合いおもり用そらせ車１８）に対し、極力離す目的で昇降路１の隅に寄せて配置されているため、駆動シーブ１２とシーブの軸方向が異なる他のシーブとの間に生じる主索２０の捻れを緩和するための充分な距離を確保する事ができると共に、駆動シーブ１２に対して充分な巻き付け角度を確保する事ができる。
また、この実施の形態では、制御盤３３、調速機３４、及び遊び車１４、それに加え、第１のかご用そらせ車１６、第２のかご用そらせ車１７、及び釣り合いおもり用そらせ車１８が、駆動装置１０の最大高さ寸法の範囲内に収まるように配置されているが、支持台３０についても同様に上記範囲内に配置することで、更に昇降路１上部の上下寸法を抑えることができる。また、最大高さを示すのは駆動装置１０に限らず、例えば、第１のかご用そらせ車１６、第２のかご用そらせ車１７、及び釣り合いおもり用そらせ車１８のいずれかであっても良い。
また、この発明は、上述のように汎用主索を用いてトラクションの確保を容易に得られるが、汎用主索に代わり、高張力タイプの細い直径の主索を採用して更にトラクション能力を向上しても良い。ここで、法規上、シーブ径と主索の直径の関係は、シーブ径／主索径≧４０とされているため、高張力タイプの従来より細い直径の主索を用いることで、駆動シーブ１２、遊び車１４、第１のかご用そらせ車１６、第２のかご用そらせ車１７、釣り合いおもり用そらせ車１８といったシーブ類の小径化が可能となり、更には駆動装置１０を小径化することもでき、昇降路１上部の省スペース性がより向上する。
実施の形態２．
第４図は、本発明の実施の形態２による機械室レスタイプのエレベータ装置の配置例を示す平面図である。
実施の形態１では、昇降路１内のかご５の後方に釣り合いおもり７が配置されているが、第４図のように、昇降路１内のかご５の側方に釣り合いおもり７が配置されている。すなわち、釣り合いおもり７をかご５の出入口ドア５ａ側からみて、かご５の一方の側面を昇降させるので、副ガイドレール３も昇降路の入口側からみて昇降路側面（この場合、左側面）に配置されている。このような配置の変更に対応して、支持台３０の形状も変更されている。しかし、その他の構成およびその動作は、実地の形態１と基本的に同様であるから、同一または相当部分に同一に符号を付してその説明を省略する。なお、この実施の形態２でも、遊び車１４は、駆動シーブ１２から第１のかご用そらせ車１６に至る主索２０（第１のロープ２１）と、駆動シーブ１２から釣り合いおもり用そらせ車１８に至る主索２０との間に挟まれるように配置されている。
本実施の形態においても、主索２０を駆動シーブ１２に巻き掛けた後、遊び車１４に巻き掛け、更に駆動シーブ１２に再び巻き掛けることにより、駆動シーブ１２への主索２０の接触量を示す巻き付け角度が増え、所定のトラクションを得る事が容易となる。
これにより、従来の主索２３として、合成繊維を用いた高摩擦の特殊な主索を用いて、更に特殊なアンダーカット溝を設けた駆動シーブ１３の組み合わせによりトラクションを上げる方式から、鋼製の汎用主索２０と、主索２０が巻き掛けられるＵ溝を有し、このＵ溝の底部半円形部の直径が主索２０の直径に近似する直径で形成された駆動シーブ１２の組み合わせにより同等のトラクションを得る事ができ、主索２０の高寿命化と、更には製作・保守時のコスト削減にもなる。
また、従来例のように、かご５の上部に吊部を設ける必要がなく、かご５の吊部相当のスペース分だけ昇降路１の上下寸法を縮小することができる。その上、従来のかご５上部での１点支持に対し、この発明ではかご５の底部での２点支持となるため、かご５上部の構造部材の強度を低減できることとなり、かご５の軽量化及び製作コストも低減できる。
その他、実施の形態１で得られたのと同様の効果を奏する。
実施の形態３．
第５図、第６図は、本発明の実施の形態３による機械室レスタイプのエレベータ装置の配置例を示す平面図である。
実施の形態１では、主索２０が第１のロープ２１、第２のロープ２２にて構成されており、駆動シーブ１２から第１のかご用そらせ車１６、第２のかご用そらせ車１７によって方向転換され、かご５が２箇所のかごブラケット６によって、かご５の底部で吊り下げられている。しかし、この発明はこれに限るものではない。第５図において、１経路のみの主索２０が、駆動シーブ１２に巻き掛けられた後、遊び車１４に巻き掛けられ、更に駆動シーブ１２に巻き掛けられており、一端は釣り合いおもり用そらせ車１８によって、主索２０が水平方向から鉛直方向に方向転換され、釣り合いおもり１８に至っている。また、駆動シーブ１２からかご５に至る他端は、かご用そらせ車１５によって、主索２０が水平方向から鉛直方向に方向転換され、ロープシャックル２４及び緩衝材２５（ここでは図示せず）を介してかご５の上梁２８に接続されている。
このように、かご５をかごの上梁２８の１箇所で支持するローピング方式においてもこの発明が適用できる。そのため、充分な巻き付け角度を確保することができ、必要なトラクションの確保が容易となるため、（国際出願の国際公開番号ＷＯ０２／１６２４７Ａ１号公報のように、）駆動シーブ１３にアンダーカット溝を設けて高摩擦の特殊な主索２３を用いることなしに、汎用主索２０の使用が可能となり、主索の高寿命化、製作・保守時のコスト削減が図れる。
また、第５図は昇降路１内のかご５の後方に釣り合いおもり７が配置されているが、第６図のように、昇降路１内のかご５の側方に釣り合いおもり７が配置されているエレベータ装置にも、この発明は適用できる。
以上の実施の形態１から３では、好適な一例として、駆動装置１０、遊び車１４、第１のかご用そらせ車１６、第２のかご用そらせ車１７（かご用そらせ車１５）、釣り合いおもり用そらせ車１８が配置されている支持台３０は、主ガイドレール２、及び副ガイドレール３に備えられた支持台ブラケット３１に防振材３２を介して取り付けられている。ここで、通常、昇降路壁は強度部材として形成されており、これらの実施の形態の変形例として、駆動装置１０、遊び車１４、第１のかご用そらせ車１６、第２のかご用そらせ車１７（かご用そらせ車１５）、釣り合いおもり用そらせ車１８が配置されている支持台３０は、昇降路壁部により支持されていても良い（図示省略する）。また、支持台３０と昇降路壁部の間にゴム製の防振材３２を介する事で、駆動装置１０が発する振動を昇降路壁部を通して建物に伝わるのを防止することができる。In order to describe the present invention in more detail, it will be described with reference to the accompanying drawings.
Embodiment 1 FIG.
FIG. 1 and FIG. 2 are views showing an arrangement example of a machine room-less type elevator apparatus according to Embodiment 1 of the present invention. FIG. 1 is a plan view of the elevator apparatus looking down from above, FIG. These are the partial elevations which looked at the elevator apparatus from the horizontal direction, and are the conceptual diagrams which respectively show the elevator apparatus principal part.
In the figure, in a hoistway 1, a pair of main (car) guide rails 2 supported by rail brackets 4 attached to the wall of the hoistway 1, and another pair of auxiliary (for counterweight) guide rails. 3 is arranged. The car 5 is guided by the main guide rail 2 and raised and lowered in the hoistway 1, and the counterweight 7 is guided by the sub guide rail 3 and raised and lowered in the hoistway 1.
As shown in the plan view of FIG. 1, the car 5 has an entrance door 5a at the front of the hoistway, the main guide rail 2 is arranged on both sides of the car orthogonal to the car entrance surface, and the sub guide rail 3 is It is arranged on the back side facing the car doorway. The car 5 is provided with a plurality of guide shoes 8 that engage with the main guide rail 2, and the counterweight 7 is provided with a plurality of guide shoes 9 that engage with the sub guide rail 3. . At the upper end of each of the main guide rail 2 and the sub guide rail 3, a support base bracket 31 for attaching the support base 30 is provided. The support base 30 is attached to the support base bracket 31 with a vibration isolating material 32. Is attached through. The support base 30 may be directly attached to the support base bracket 31, but the vibration generated by the driving device 10 is transmitted from the main guide rail 2 and the sub guide rail 3 to the building from the hoistway wall through the rail bracket 4. In order to prevent this, it is preferable to use a vibration isolator 32 interposed between the support base bracket 31 and the support base bracket 31.
A drive device 10 including a drive sheave 12 that is wound around an elevator main rope 20 and has a rotation axis in a vertical direction and an electric motor 11 that rotationally drives the drive sheave 12 has an outer shape that is a radial dimension. This is a thin type with a smaller thickness in the direction of the rotation axis than As with the drive sheave 12, the play wheel 14 is arranged so that the rotation axis is in the vertical direction. The driving device 10 and the play wheel 14 are mounted on the support 30, the driving device 10 is disposed above the corner portion of the car 5, and the play wheel 14 is disposed at a predetermined distance from the driving device 10. In other words, the driving device 10 is disposed near the corner of the hoistway 1, and the play wheel 14 is disposed near the other corner of the hoistway 1. In addition, in FIG. 1, the drive device 10 is a position of the hoistway that is a preferable position for roping (a position in which the main ropes cross and cause no interference in the process of winding the main ropes around the sheaves). Located close to the rear corner.
In this embodiment, the play car 14 is mounted on the same support base 30 as that of the driving device 10. However, the play car 14 is mounted on a support base provided separately from the support base 30. May be.
Next, the main rope 20 has two parallel paths composed of independent first ropes 21 and second ropes 22, and there are a plurality of first ropes 21 and second ropes 22. It consists of a set of unit ropes consisting of books.
The intermediate portion of the main rope 20 having the first rope 21 and the second rope 22 is wound around the drive sheave 12, wound around the play wheel 14, and further wound around the drive sheave 12. ing. At one end of the main rope 20, the main rope 20 is changed from the horizontal direction to the vertical direction by the counterweight deflector 18 from the drive sheave 12, and reaches the counterweight 7. That is, the first rope 21 and the second rope 22 are wound around the play sheave 12 from the drive sheave 12 and further on the drive sheave 12 to reach the counterweight 7 via the counterweight deflector 18. And the main rope 20 is formed in parallel.
One end of each of the first rope 21 and the second rope 22 is connected to the upper beam 29 of the counterweight 7 via a rope shackle 26 and a cushioning material 27 using a coil spring.
Further, the other end of the main rope 20, that is, the other end from the drive sheave 12 to the car 5, the first rope 21 and the second rope 22 are separated from each other. The first rope 21 and the second rope 22 are changed from the horizontal direction to the vertical direction by the car deflecting wheel 17 and coupled to a predetermined portion of the car 5. At the other end, the first rope 21 and the second rope 22 are opposed to each other with the center of gravity of the car 5 sandwiched between the rope shackle 24 and the cushioning material 25 using a coil spring, respectively. Are connected to two car brackets 6 provided on the vehicle.
Thereby, unlike the prior art, it is not necessary to provide a hanging part on the upper part of the car 5, and the vertical dimension of the hoistway 1 can be reduced by a space corresponding to the hanging part of the car 5. In addition, in contrast to the conventional one-point support at the top of the car 5, the present invention provides two-point support at the bottom of the car 5, thereby reducing the strength of the structural members at the top of the car 5 and reducing the weight of the car 5. In addition, the manufacturing cost can be reduced.
In this embodiment, as a preferred example, the car 5 is supported at the bottom of the car 5. However, if the car 5 is supported at two locations below the upper surface of the car 5, the vertical dimension of the hoistway 1 Since the reduction can be realized, the support position may be anywhere as long as the support portion is the opposite side surface of the car 5.
Next, in the present embodiment, as described above, the first car sloping wheel 16 and the second car corresponding to the first rope 21 and the second rope 22 as the car sloping car, respectively. A deflecting wheel 17 is provided and is arranged so as to be separated from each other and at least partially overlap the car 5 on the vertical projection plane of the hoistway 1. Further, the first car deflecting wheel 16 and the second car deflecting wheel 17 are respectively positioned above the rope shackle 24. That is, the first car deflector 16 and the second car deflector 17 are arranged so that most of them overlap with the car 5 on the vertical projection plane, and therefore the distance between the car 5 and the hoistway wall. Is arranged (so that it is not necessary to enlarge the plane of the hoistway 1).
The counterweight deflector 18 is arranged so that at least a part thereof overlaps with the counterweight 7 on the vertical projection plane of the hoistway 1. The first car deflecting wheel 16, the second car deflecting car 17, and the counterweight deflecting car 18 are installed on the support 30.
Here, the play car 14 includes a main rope 20 (first rope 21) extending from the drive sheave 12 to the first car deflector 16 and a main rope 20 extending from the drive sheave 12 to the counterweight deflector 18. It is arranged to be sandwiched between the two.
That is, with respect to the drive sheave 12, the play car 14, the first car deflector 16, the second car deflector 17, and the counterweight deflector 18, the main ropes 20 are arranged in the order in which they are configured. In the process of winding, the main ropes 20 can be arranged so as not to intersect and cause interference. Further, when the car 5 is hung on the opposite side surfaces of the car 5, it is desirable to hung the car 5 at positions facing each other across the center of gravity of the car 5. In such a case, the two hanger portions of the car 5 are shown in FIG. Thus, when the hoistway 1 is viewed from the vertical direction, it is in the vicinity of the substantially central side wall surface (near the main guide rail 2) of the hoistway 1. Therefore, by arranging the play wheel 14 as described above, the support bases such as the driving device 10, the play wheel 14, the first car sling wheel 16, the second car sled wheel 17, and the counterweight sled wheel 18 are provided. The hoistway top installation device installed at 30 moves up and down with reference to the line connecting the first car sloping car 16 and the second car sloping car 17 when the hoistway 1 is viewed from the vertical direction. It can be stored on one side of the road 1, and space saving at the upper part of the hoistway 1, downsizing of the support 30 and securing of maintenance space can be realized.
Moreover, although the arrangement | positioning by the above-mentioned description is an example of the arrangement | positioning place of the playwheel 14 suitable for the convenience of the layout of an elevator apparatus, the playwheel 14 reaches from the drive sheave 12 to the 2nd car deflection car 17. Between the main rope 20 (second rope 22) and the main rope 20 extending from the drive sheave 12 to the counterweight deflector 18 (specifically, from the drive sheave 12 to the first car deflector 16) Even if it is arranged so as to be sandwiched between the main rope 20 (first rope 21) and the main rope 20 (second rope 22) extending from the drive sheave 12 to the second car deflector 17 good.
Further, in this elevator apparatus, a control panel 33 and a speed governor 34 for controlling raising and lowering of the car 5 are attached to the support base 30, and these control panel 33, speed governor 34, and play wheel 14 Are arranged so as to be within the range of the maximum height of any one of the driving device 10, the first car deflector 16, the second car deflector 17, and the counterweight deflector 18. In FIG. 2, the driving device 10 is disposed so as to be within the vertical width.
FIG. 3 is a cross-sectional view showing the conventional shape of the groove of the drive sheave around which the main rope 20 is wound and the shape of the present invention.
In FIG. 3, the drive sheave 13 having a conventional shape is provided with a special undercut groove in a portion where the main rope 23 comes into contact, and the main rope 23 bites into the groove to increase the frictional force. However, there is a drawback that the wear of the main rope 23 is increased and the life is shortened. Therefore, the drive sheave 12 of this shape has a U groove around which the main rope 20 is wound, and the diameter of the bottom semicircular portion of the U groove is formed to a diameter that approximates the diameter of the main rope 20. Therefore, since the contact area between the drive sheave 12 and the main rope 20 can be increased, the surface pressure can be lowered, which is advantageous in terms of the life of the main rope 20.
From the above description, in this embodiment, after the main rope 20 is wound around the drive sheave 12, the main rope 20 around the drive sheave 12 is wound around the play wheel 14 and again around the drive sheave 12. The winding angle indicating the amount of contact increases, and it becomes easy to obtain a predetermined traction.
Thereby, as a conventional main rope 23, a high friction special main rope using synthetic fibers is used, and a combination of a drive sheave 13 provided with a special undercut groove further increases the traction, and is made of steel. A combination of a general-purpose main rope 20 and a drive sheave 12 having a U-groove around which the main rope 20 is wound and having a diameter of the bottom semicircular portion of the U-groove approximate to the diameter of the main rope 20 The required traction can be obtained, the life of the main rope 20 can be extended, and the cost for production and maintenance can be reduced.
Further, in this embodiment, the driving device 10 is disposed above the corner portion of the car 5 and the diameter of the play wheel 14 is generally the same as the diameter of the driving sheave 12 or about 90% thereof. It is formed and is arranged at a predetermined distance from the driving device 10. That is, the drive sheave 12 is the hoistway 1 for the purpose of separating as much as possible from the other sheaves (the play car 14, the first car deflector 16, the second car deflector 17, and the counterweight deflector 18). Since it is arranged close to the corners, it is possible to secure a sufficient distance to alleviate torsion of the main rope 20 generated between the drive sheave 12 and another sheave having a different axial direction of the sheave. A sufficient winding angle can be secured with respect to the drive sheave 12.
In this embodiment, the control panel 33, the speed governor 34, the play wheel 14, the first car sloping wheel 16, the second car sling wheel 17, and the counterweight sling wheel 18 are added. However, the vertical height of the upper part of the hoistway 1 can be further suppressed by arranging the support base 30 within the above range as well. Can do. Further, the maximum height is not limited to the driving device 10, and may be, for example, any of the first car deflecting vehicle 16, the second car deflecting vehicle 17, and the counterweight deflecting vehicle 18. good.
In addition, as described above, the traction can be easily secured by using the general-purpose main rope as described above, but the high-strength type main rope having a small diameter is used instead of the general-purpose main rope to further improve the traction capability. You may do it. Here, according to the law, since the relationship between the sheave diameter and the main rope diameter is set as sheave diameter / main rope diameter ≧ 40, the drive sheave 12 can be obtained by using a high tension type main rope having a smaller diameter than the conventional one. It is possible to reduce the diameter of the sheaves such as the play car 14, the first car deflecting wheel 16, the second car deflecting wheel 17, and the counterweight deflecting wheel 18, and the driving device 10 can be further reduced in diameter. The space saving property of the upper part of the hoistway 1 can be improved.
Embodiment 2. FIG.
FIG. 4 is a plan view showing an arrangement example of a machine room-less type elevator apparatus according to Embodiment 2 of the present invention.
In the first embodiment, the counterweight 7 is arranged behind the car 5 in the hoistway 1, but the counterweight 7 is arranged on the side of the car 5 in the hoistway 1 as shown in FIG. ing. That is, when the counterweight 7 is viewed from the entrance / exit door 5a side of the car 5 and one side surface of the car 5 is lifted, the auxiliary guide rail 3 is also viewed from the entrance side of the hoistway on the side of the hoistway (in this case, the left side). Is arranged. Corresponding to such a change in arrangement, the shape of the support base 30 is also changed. However, since the other configuration and the operation thereof are basically the same as those of the first embodiment, the same or corresponding parts are denoted by the same reference numerals, and the description thereof is omitted. Also in the second embodiment, the play car 14 includes the main rope 20 (first rope 21) extending from the drive sheave 12 to the first car deflector 16 and the counterweight deflector 18 from the drive sheave 12. It arrange | positions so that it may be pinched | interposed between the main ropes 20 leading to.
Also in the present embodiment, after the main rope 20 is wound around the drive sheave 12, the main rope 20 is wound around the play sheave 14, and is further wound around the drive sheave 12, whereby the contact amount of the main rope 20 with respect to the drive sheave 12 is increased. The winding angle shown increases, and it becomes easy to obtain a predetermined traction.
Thereby, as a conventional main rope 23, a high friction special main rope using synthetic fibers is used, and a combination of a drive sheave 13 provided with a special undercut groove further increases the traction, and is made of steel. Equivalent to a combination of a general-purpose main rope 20 and a drive sheave 12 having a U-groove around which the main rope 20 is wound, and a diameter of the bottom semicircular portion of the U-groove approximate to the diameter of the main rope 20 The traction of the main rope 20 can be increased, and the manufacturing and maintenance costs can be reduced.
Further, unlike the conventional example, it is not necessary to provide a hanging portion on the upper portion of the car 5, and the vertical dimension of the hoistway 1 can be reduced by a space corresponding to the hanging portion of the car 5. In addition, in contrast to the conventional one-point support at the top of the car 5, the present invention provides two-point support at the bottom of the car 5, thereby reducing the strength of the structural members at the top of the car 5 and reducing the weight of the car 5. In addition, the manufacturing cost can be reduced.
In addition, the same effects as those obtained in the first embodiment are obtained.
Embodiment 3 FIG.
FIGS. 5 and 6 are plan views showing examples of arrangement of the machine room-less type elevator apparatus according to Embodiment 3 of the present invention.
In the first embodiment, the main rope 20 is constituted by the first rope 21 and the second rope 22, and is driven by the first car deflector 16 and the second car deflector 17 from the drive sheave 12. The direction is changed and the car 5 is suspended from the bottom of the car 5 by two car brackets 6. However, the present invention is not limited to this. In FIG. 5, the main rope 20 of only one path is wound around the drive sheave 12 and is then wound around the play sheave 14 and further wound around the drive sheave 12. One end of the counterweight is a counterweight sled wheel. The main rope 20 is turned from the horizontal direction to the vertical direction by 18 and reaches the counterweight 18. The other end from the drive sheave 12 to the car 5 is turned by the car deflecting wheel 15 from the horizontal direction to the vertical direction, and the rope shackle 24 and the buffer material 25 (not shown here) are attached. And connected to the upper beam 28 of the car 5.
Thus, the present invention can also be applied to a roping method in which the car 5 is supported at one place on the upper beam 28 of the car. Therefore, a sufficient winding angle can be ensured, and the necessary traction can be easily secured, so that the undercut groove is formed in the drive sheave 13 (as in International Publication No. WO 02/16247 A1). It is possible to use the general-purpose main rope 20 without using the special main rope 23 with high friction, and it is possible to extend the life of the main rope and to reduce the cost during production and maintenance.
In FIG. 5, the counterweight 7 is arranged behind the car 5 in the hoistway 1. However, the counterweight 7 is arranged on the side of the car 5 in the hoistway 1 as shown in FIG. The present invention can also be applied to an elevator apparatus.
In the first to third embodiments described above, as a preferred example, the driving device 10, the play car 14, the first car sloping car 16, the second car sloping car 17 (the car sloping car 15), the counterweight. The support base 30 on which the deflecting wheel 18 is disposed is attached to a support base bracket 31 provided on the main guide rail 2 and the sub guide rail 3 via a vibration isolating material 32. Here, the hoistway wall is usually formed as a strength member, and as a modification of these embodiments, the driving device 10, the play wheel 14, the first car sled wheel 16, and the second car sled. The support base 30 on which the car 17 (car deflecting car 15) and the counterweight deflecting car 18 are arranged may be supported by a hoistway wall (not shown). Further, the vibration generated by the drive device 10 can be prevented from being transmitted to the building through the hoistway wall part by using the rubber vibration isolator 32 between the support base 30 and the hoistway wall part.

この発明は、以上説明したように構成されているので、以下に示すような効果がある。
本発明によれば、駆動装置から所定の位置に遊び車を配置することで、主索の駆動シーブへの巻き付け角を増やせ、主索と駆動シーブ間に充分な摩擦力の確保が容易となる為、高摩擦の特殊な主索を用いなくても汎用の主索が使えるようになり、安価にして安定した主索の寿命の確保が可能となる。また、主索の保守・点検が容易となる。更に高張力の細い主索を用いることで、駆動シーブ、遊び車、そらせ車の小径化が可能となる。
また、かごを側面底部で吊ることで、従来のかごの上部を吊る方式に比べ、かご上部の構造部材の強度を低減できることとなり、また製作コストの低減、軽量化にもなる為、昇降路上部の鉛直方向の寸法を抑えることもでき、機械室レスエレベータのメリットである省スペース性を更に向上できる。その為、本発明は、建物の外観や高さによる制限などを有する厳しい立地条件でのエレベータを提供するのに適している。Since the present invention is configured as described above, there are the following effects.
According to the present invention, by arranging the play wheel at a predetermined position from the drive device, the winding angle of the main rope around the drive sheave can be increased, and it becomes easy to secure sufficient frictional force between the main rope and the drive sheave. Therefore, a general-purpose main rope can be used without using a special main rope with high friction, and a stable main rope life can be secured at a low cost. In addition, maintenance and inspection of the main rope becomes easy. Further, by using a high tension thin main rope, it is possible to reduce the diameter of the drive sheave, the play wheel, and the deflector.
In addition, by suspending the car at the bottom of the side, the strength of the structural member at the top of the car can be reduced compared to the conventional method of hanging the top of the car, and the manufacturing cost is reduced and the weight is reduced. The vertical dimension can be suppressed, and the space saving, which is a merit of the machine room-less elevator, can be further improved. Therefore, the present invention is suitable for providing an elevator in a severe location condition that has limitations due to the appearance and height of a building.

Claims

A drive sheave mounted on a support base installed in the upper part of the hoistway and having an elevator main rope wound thereon and an electric motor that rotates the drive sheave, and at least the rotation axis of the drive sheave is in the vertical direction An elevator apparatus comprising: a drive device arranged as described above; and a car and a counterweight that are suspended in the hoistway by the main rope and lifted by the drive device,
A play wheel arranged such that the rotation axis is in a vertical direction at a predetermined distance from the drive device;
A main rope having one end coupled to the counterweight and an intermediate portion wound around the drive sheave, then wound around the play sheave, and again wound around the drive sheave and the other end coupled to the car. ,
A car sloping wheel arranged on the support base and changing the direction of the main rope from the driving sheave to the car from a horizontal direction to a vertical direction;
A counterweight deflector for changing the direction of the main rope from the drive sheave to the counterweight, which is arranged on the support base, from a horizontal direction to a vertical direction;
An elevator apparatus comprising:

The main rope has two parallel paths, and includes a first rope and a second rope that are independent from each other, and the first car is disposed as a car slurries and is separated from each other. Of the main rope extending from the drive sheave to the car, the first rope is connected to the car via the first car deflection car. 2. The elevator apparatus according to claim 1, wherein the elevator apparatus reaches a predetermined portion, and the second rope reaches the other predetermined portion of the car via the second car deflecting wheel.

The elevator apparatus according to claim 2, wherein ends of the first rope and the second rope are respectively coupled to the car at opposite sides of the car.

The elevator apparatus according to claim 2, wherein ends of the first rope and the second rope are respectively coupled to the car at positions facing each other across the center of gravity of the car.

The elevator apparatus according to claim 1, wherein the driving device is formed with a thickness in a rotation axis direction smaller than a dimension in a radial direction.

The drive sheave has a U-groove around which the main rope is wound, and the diameter of the bottom semicircular portion of the U-groove is formed to a diameter approximate to the diameter of the main rope. The elevator apparatus as described.

The play car is disposed so as to be sandwiched between a main rope extending from the drive sheave to the car deflector and the main rope extending from the drive sheave to the counterweight deflector. The elevator apparatus according to claim 1 or 2.

The car sloping wheel and the counterweight sloping wheel are arranged on the vertical projection surface of the hoistway so that at least a part of the car and the counterweight overlap each other. The elevator apparatus according to 1.

2. The elevator apparatus according to claim 1, wherein the driving device is disposed in the vicinity of a rear corner of the hoistway.

The elevator apparatus includes a control panel and a speed governor for controlling the raising and lowering of the car, and the control panel, the speed governor, and the play wheel are the driving device or the car sloping car and 2. The elevator apparatus according to claim 1, wherein the elevator apparatus is disposed so as to be within a range of a maximum height dimension of any of the counterweight deflecting wheels.

The elevator apparatus includes a main guide rail that guides the car and a sub guide rail that guides the counterweight, and the support base is at least one of the main guide rail and the sub guide rail, or a hoistway wall. The elevator apparatus according to claim 1, wherein the elevator apparatus is supported by the elevator.

The elevator apparatus according to claim 11, wherein the support base includes a vibration isolator interposed between the main guide rail and the sub guide rail supporting the support base, or the hoistway wall. .