JP4262805B2

JP4262805B2 - Elevator equipment

Info

Publication number: JP4262805B2
Application number: JP24993898A
Authority: JP
Inventors: 清小林; 正宗像; 晃正上村
Original assignee: Toshiba Elevator Co Ltd
Current assignee: Toshiba Elevator and Building Systems Corp
Priority date: 1998-09-03
Filing date: 1998-09-03
Publication date: 2009-05-13
Anticipated expiration: 2018-09-03
Also published as: JP2000086129A

Description

【０００１】
【発明の属する技術分野】
本発明は、昇降路内に駆動装置を設置したトラクション方式のエレベータ装置に関する。
【０００２】
【従来の技術】
近年、特に都市部においては建物自体の効率的な利用が要求されるようになり、たとえば屋上等に突出したエレベータの機械室等が日照権問題に影響を与えたり、美観を損ねかねないようにもなってきた。
【０００３】
そこでこれまでにも、エレベータ機械室を特に設置することなく、昇降路内にエレベータ制御装置を収納しコンパクト化する考えが種々なされている。例えば、特許第２５９３２８８号公報に記載の「トラクションシーブエレベータ」は、図１６に示すように、トラクションシーブ１を備えた偏平薄型の駆動装置２が、昇降路３内の側壁３ａとエレベータかご４の昇降移動空間との間に形成される間隙に設置され、かご４の下部に取り付けられた動滑車をなすシーブ５ａと、釣合錘６の上部に取り付けられた動滑車をなすシーブ５ｂとに順次吊りロープ７を巻き掛け、吊りロープ７の両端部を昇降路３の天井壁３ｂに連結支持した構成である。なお、図１６で昇降路３内のピット３ｃは、１階（１Ｆ）の位置３ｄの下に位置していることを示している。
【０００４】
この図１６に示したエレベータ装置は、かご４の下部のシーブ５ａに吊りロープ７を巻き掛けてかごを動滑車的に駆動する方式であって、上記構成により、かご４上の空間は有効利用できると共に、駆動機構のモータ容量を比較的小さく抑えることができ、駆動装置の占有空間を小さくすることができる。
【０００５】
また、特開平９−１５６８５５公報に記載の「エレベータ装置」は、図１７に示すように、釣合錘１６の上部空間に同じく偏平薄型の駆動装置１２を配置し、昇降路１３内の頂部に設けられた転向シーブ１８ａ，１８ｂ及び反らせシーブ１８ｃを介して、かご４を吊り下げるよう構成されている。
【０００６】
このように、トラクションシーブ１１を備えた偏平薄型の駆動装置１２を、昇降路１３内の側壁とエレベータかご１４の昇降移動空間との間に形成される間隙との間に設置することにより、屋上等に格別機械室を設けることなく、装置全体の占める空間のコンパクト化が図られ、スペース効率の良いエレベータ装置を実現することができる。
【０００７】
【発明が解決しようとする課題】
ところが、このような従来のエレベータ装置では、次のような問題点があった。図１６に示したエレベータ装置では、かごの下部に動滑車をなすシーブを取り付けているため、エレベータかごの下にスペースを必要とし、またかごを吊る位置もかご下の左右両側面に限定されてしまい、限られたスペースにエレベータかご、釣合錘、巻上機などを自由にレイアウトすることが難しい問題点があった。また図１７に示した従来のエレベータ装置では、昇降路の上部に転向シーブを収容する空間を必要とする問題点があった。
【０００８】
本発明はかかる従来の問題点に鑑みてなされたもので、格別機械室を設けることなく、省スペース化が可能で、かつ昇降路空間に合わせて自由な機器配置が可能なエレベータ装置を提供することを目的とする。
【０００９】
【課題を解決するための手段】
請求項１の発明は、昇降路内に設けられた１対のかご用ガイドレールに沿って昇降するエレベータかごと、前記昇降路内に設けられた１対の釣合錘用ガイドレールに沿って昇降する釣合錘と、前記エレベータかごと釣合錘とを懸垂する吊りロープと、前記吊りロープが巻付けられたトラクションシーブを回転駆動する駆動装置とを備えて成るエレベータ装置であって、前記１対のかご用ガイドレールは、前記昇降路の左右の側壁それぞれに固定され、前記１対の釣合錘用ガイドレールは、前記昇降路の左右いずれかの側壁において当該側壁に固定されている前記かご用ガイドレールの一方に隣接する位置に固定され、前記駆動装置は薄型に構成し、かつ前記昇降路の前記釣合錘用ガイドレールが固定されている側壁と前記エレベータかごの昇降移動空間との間に形成される間隙に収容し、前記吊りロープは、前記エレベータかごの前記間隙に面する側面に当該側面と平行な面内にて回転するように設けられたかご側転向シーブと、前記釣合錘に前記かご側転向シーブと平行な面内にて回転するように設けられた釣合錘側転向シーブとに巻掛け、その両端を前記昇降路の上端部内に設置された支持部材に連結支持したものである。
【００１０】
請求項２の発明は、昇降路内に設けられた１対のかご用ガイドレールに沿って昇降するエレベータかごと、前記昇降路内に設けられた１対の釣合錘用ガイドレールに沿って昇降する釣合錘と、前記エレベータかごと釣合錘とを懸垂する吊りロープと、前記吊りロープが巻付けられたトラクションシーブを回転駆動する駆動装置とを備えて成るエレベータ装置であって、前記１対のかご用ガイドレールは、前記昇降路の左右の側壁それぞれに固定され、前記１対の釣合錘用ガイドレールは、前記昇降路の前記エレベータかごの背面の面する背壁に固定され、前記駆動装置は薄型に構成し、かつ前記昇降路の背壁と前記エレベータかごの昇降移動空間との間に形成される間隙に収容し、前記吊りロープは、前記エレベータかごの背面に当該背面と平行な面内にて回転するように設けられたかご側転向シーブと、前記釣合錘に前記かご側転向シーブと平行な面内にて回転するように設けられた釣合錘側転向シーブとに巻掛け、その両端を前記昇降路の上端部内に設置された支持部材に連結支持したものである。
【００１１】
請求項３の発明は、昇降路内に設けられた１対のガイドレールに沿って昇降するエレベータかごと、前記昇降路内に設けられた他のガイドレールに沿って昇降する釣合錘と、前記エレベータかごと釣合錘とを懸垂する吊りロープと、前記吊りロープが巻付けられたトラクションシーブを回転駆動する駆動装置とで構成されるエレベータ装置であって、前記駆動装置は薄型に構成し、かつ前記昇降路の側壁と前記エレベータかごの昇降移動空間との間に形成される間隙に収容し、前記吊りロープは、前記エレベータかごの両側面と底面とに当該面それぞれと平行な面内にて回転するように設けられたかご側転向シーブと前記釣合錘に設けられた釣合錘側転向シーブとに巻掛け、その両端を前記昇降路の上端部内に設置された支持部材に連結支持したものである。
【００１２】
請求項４の発明は、昇降路内に設けられた１対のガイドレールに沿って昇降するエレベータかごと、前記昇降路内に設けられた他のガイドレールに沿って昇降する釣合錘と、前記エレベータかごと釣合錘とを懸垂する吊りロープと、前記吊りロープが巻付けられたトラクションシーブを回転駆動する駆動装置とで構成されるエレベータ装置であって、前記駆動装置は薄型に構成し、かつ前記昇降路の側壁と前記エレベータかごの昇降移動空間との間に形成される間隙に収容し、前記吊りロープは、前記エレベータかごの両側面と天井面とに当該面それぞれと平行な面内にて回転するように設けられたかご側転向シーブと前記釣合錘に設けられた釣合錘側転向シーブとに巻掛け、その両端を前記昇降路の上端部内に設置された支持部材に連結支持したものである。
【００１３】
請求項５の発明は、昇降路内に設けられた１対のガイドレールに沿って昇降するエレベータかごと、前記昇降路内に設けられた他のガイドレールに沿って昇降する釣合錘と、前記エレベータかごと釣合錘とを懸垂する吊りロープと、前記吊りロープが巻付けられたトラクションシーブを回転駆動する駆動装置とで構成されるエレベータ装置であって、前記駆動装置は薄型に構成し、かつ前記昇降路の背壁と前記エレベータかごの昇降移動空間との間に形成される間隙に収容し、前記吊りロープは、前記エレベータかごの両側面及び背面に当該面それぞれと平行な面内にて回転するように設けられたかご側転向シーブと前記釣合錘に設けられた釣合錘側転向シーブとに巻掛け、その両端を前記昇降路の上端部内に設置された支持部材に連結支持したものである。
【００１４】
請求項６の発明は、昇降路内に設けられた１対のガイドレールに沿って昇降するエレベータかごと、前記昇降路内に設けられた他のガイドレールに沿って昇降する釣合錘と、前記エレベータかごと釣合錘とを懸垂する吊りロープと、前記吊りロープが巻付けられたトラクションシーブを回転駆動する駆動装置とで構成されるエレベータ装置であって、前記駆動装置は薄型に構成し、かつ前記昇降路の背壁又は側壁と前記エレベータかごの昇降移動空間との間に形成される間隙に収容し、前記吊りロープは、前記エレベータかごの側面、背面及び底面に当該面それぞれと平行な面内にて回転するように設けられたかご側転向シーブと前記釣合錘に設けられた釣合錘側転向シーブとに巻掛け、その両端を前記昇降路の上端部内に設置された支持部材に連結支持したものである。
【００１５】
請求項７の発明は、昇降路内に設けられた１対のガイドレールに沿って昇降するエレベータかごと、前記昇降路内に設けられた他のガイドレールに沿って昇降する釣合錘と、前記エレベータかごと釣合錘とを懸垂する吊りロープと、前記吊りロープが巻付けられたトラクションシーブを回転駆動する駆動装置とで構成されるエレベータ装置であって、前記駆動装置は薄型に構成し、かつ前記昇降路の背壁と前記エレベータかごの昇降移動空間との間に形成される間隙に収容し、前記吊りロープは、前記エレベータかごの両側面及び天井面に当該面それぞれと平行な面内にて回転するように設けられた転向シーブと前記釣合錘に設けられた転向シーブとに巻掛け、その両端を前記昇降路の上端部内に設置された支持部材に連結支持したものである。
【００１６】
請求項１〜７の発明のエレベータ装置では、エレベータかごの昇降路の上方や下方に隣接して機械室などの余分な空間を必要とせず、省スペース化が可能である。
【００１９】
請求項８の発明は、請求項３〜７のエレベータ装置において、前記エレベータかごの側面又は背面に設けられたかご側転向シーブをエレベータかごの重心に対して上方から見て対称の位置に配置したものであり、エレベータかごのガイドレール及び案内装置にかかる偏荷重を防止することができる。
【００２０】
請求項９の発明は、請求項１〜８のエレベータ装置において、前記駆動装置に、各々がトラクションシーブを有する複数の薄型巻上機を用いたものであり、大容量のエレベータかごのトラクション駆動が可能である。
【００２１】
請求項１０の発明は、請求項９のエレベータ装置において、前記複数の薄型巻上機を１台の制御装置によって同時に駆動するようにしたものであり、制御の共通化により装置構成を簡素化できる。
【００２２】
【発明の実施の形態】
以下、本発明の実施の形態を図に基づいて詳説する。図１及び図２は本発明の第１の実施の形態のエレベータ装置の構成を示している。昇降路２４の側壁２４ａにブラケット（図示せず）などで取り付けられたかご用ガイドレール２０ａ，２０ｂによってエレベータかご２１は案内される。このエレベータかご２１の側面２１ａ（エレベータかご２１の入り口側を正面２１ｂとして左右のいずれかの側面）に、転向シーブ２２がその回転面が当該側面２１ａと平行となる位置関係で取り付けられている。転向シーブ２２には吊りロープ２３が巻き掛けられ、エレベータかご２１はこの転向シーブ２２を介して吊りロープ２３によって懸垂された状態になっている。
【００２３】
転向シーブ２２が取り付けられた側面側に設置されているガイドレール２０ａの頂部に、駆動装置２６が固定されており、この駆動装置２６によって回転駆動される扁平薄型のトラクションシーブ２５が、昇降路２４の側壁２４ａとエレベータかご２１の昇降移動空間との間の間隙に位置するようにしてある。そしてこのトラクションシーブ２５に吊りロープ２３が巻き掛けられ、トラクションシーブ２５の回転によって吊りロープ２３が釣瓶式に巻き上げ／巻き戻しされる。
【００２４】
かご用ガイドレール２０ａに隣接する位置に釣合錘用ガイドレール２７ａ，２７ｂが設置されていて、これらに釣合錘２８が昇降自在に案内される。釣合錘２８の頂部には転向シーブ２９が取り付けられていて、吊りロープ２３がこの転向シーブ２９にも巻き掛けられ、釣合錘２８を懸垂している。なお、吊りロープ２３の両端は、エレベータかご２１の上方の昇降路２４の天井部に架設されている支持部材（図示せず）にヒッチばね（図示せず）を介して連結され、支持されている。
【００２５】
次に、上記の第１の実施の形態のエレベータ装置の動作を説明する。駆動装置２６を駆動することにより、トラクションシーブ２５が回転駆動され、これに巻き掛けられている吊りロープ２３が巻き上げ／巻き戻しされ、吊りロープ２３に懸垂されているエレベータかご２１と釣合錘２８とが互いに逆向きに、それぞれのガイドレール２０ａ，２０ｂ；２７ａ，２７ｂに案内されながら昇降動作する。このとき、エレベータかご２１はその天井面２１ｃより下方の側面２１ａに設けられた転向シーブ２２を介して吊りロープ２３に懸垂されているため、エレベータかご２１の天井面２１ｃが昇降路２４の上方へ駆動装置２６を超えて上昇する。
【００２６】
これにより、第１の実施の形態のエレベータ装置では、吊りロープ２３に懸垂されたエレベータかご２１がそれに取り付けられている転向シーブ２２により動滑車的な動きを行うため、エレベータかご２１をトラクションシーブ２５によって直接につり上げる機構の場合よりも駆動装置２６の容量が小さくて済む。また、駆動装置２６はエレベータかご２１の昇降移動空間と昇降路２４の側壁２４ａとの間の間隙において昇降路２４内に設置されており、しかもエレベータかご２１は昇降路２４の上部及び下部に空間を必要とせず、昇降路２４の天井及び床近くまで昇降可能であるため、昇降路２４の高さを最小限に設定することができる。
【００２７】
次に、本発明の第２の実施の形態のエレベータ装置について、図３及び図４に基づいて説明する。第２の実施の形態のエレベータ装置は、図１及び図２に示した第１の実施の形態のエレベータ装置に対して、釣合錘２８は昇降路２４の背壁２４ｂに設置されたガイドレール２７ａ，２７ｂによって案内されて自由に昇降する設定とし、またエレベータかご２１の背面２１ｄに転向シーブ２２を取り付け、扁平薄型の駆動装置２６を釣合錘用ガイドレール２７ａの上部に取り付け、昇降路２４におけるエレベータかご２１の昇降移動空間と昇降路２４の背壁２４ｂとの間の間隙にトラクションシーブ２５が位置するようにしたことを特徴とする。その他の構成は、図１及び図２に示した第１の実施の形態と同じであり、同一の要素に対しては同一の符号を付して示してある。
【００２８】
第２の実施の形態のエレベータ装置では、昇降路２４の奥行きに比較的余裕がある設置場所において利用するのに有用である。
【００２９】
次に、本発明の第３の実施の形態のエレベータ装置を、図５に基づいて説明する。第３の実施の形態は、昇降路２４の（正面から見て左側）側壁にブラケット（図示せず）などで取り付けられたかご用ガイドレール２０ａ，２０ｂに案内されるエレベータかご２１の側面２１ａ，２１ｅそれぞれの左右相対称な位置に転向シーブ２２ａ，２２ｂを取り付け、さらに、エレベータかご２１の床面２１ｆの下面側に、床面２１ｆと平行な回転面を持つ転向シーブ２２ｃ，２２ｄを取り付け、これらに吊りロープ２３を巻き掛けている。また、一方のかご用ガイドレール２０ｂに隣接して、釣合錘用ガイドレール２７ａ，２７ｂを昇降路２４の側壁に設置し、これらによって釣合錘２８をその昇降を案内させるようにしている。この釣合錘２８の頂部に転向シーブ２９が取り付けられている。
【００３０】
この第３の実施の形態の場合、駆動装置２６はかご用ガイドレール２０ｂの上部に取り付け、トラクションシーブ２５はエレベータかご２１の昇降移動空間と昇降路２４の側壁との間の間隙に位置する設定である。
【００３１】
そして吊りロープ２３は、トラクションシーブ２５に巻き掛けられ、エレベータかご２１の両側面２１ａ，２１ｅに取り付けられた転向シーブ２２ａ，２２ｂ、底面に取り付けられた転向シーブ２２ｃ，２２ｄに巻き掛けられ、さらに釣合錘２８の転向シーブ２９に巻き掛けられ、その両端は昇降路２４の上方の天井部に架設されている支持部材（図示せず）にヒッチばねを介して連結し、支持されている。
【００３２】
この第３の実施の形態のエレベータ装置では、駆動装置２６を駆動することにより、吊りロープ２３がトラクションシーブ２５との係合により駆動され、この吊りロープ２３に懸垂されたエレベータかご２１及び釣合錘２８がそれぞれのガイドレール２０ａ，２０ｂ；２７ａ，２７ｂに案内されて互いに逆向きに昇降する。このとき、エレベータかご２１はその天井面２１ｃより下方の側面２１ａ，２１ｅに取り付けられている転向シーブ２２ａ，２２ｂなどを介して吊りロープ２３によって懸垂されているため、エレベータかご２１の天井面２１ｃは昇降路２４の上方へ駆動装置２６よりも高い位置まで上昇する。
【００３３】
これにより、第３の実施の形態によれば、吊りロープ２３に懸垂されたエレベータかご２１が動滑車的な動作を行うため、駆動装置２６の容量が小さくて済む。またトラクションシーブ２５を有する駆動装置２６はエレベータかご２１の昇降移動空間と昇降路２４の側壁との間の間隙に収容されており、しかもエレベータかご２１は昇降路２４の上方と下方とに空間を必要とせず、昇降路２４の天井及び床近くまで昇降可能であるため、昇降路２４の高さを最小限に抑えることができる。加えて、エレベータかご２１の側面２１ａ，２１ｅに取り付けられた転向シーブ２２ａ，２２ｂの位置は、それらと対をなす床面２１ｆの転向シーブ２２ｃ，２２ｄの位置と共に自由に設定することができる利点がある。
【００３４】
次に、本発明の第４の実施の形態のエレベータ装置を、図６に基づいて説明する。第４の実施の形態の特徴は、第３の実施の形態と上下反対になるように、転向シーブをエレベータかご２１の両側面２１ａ，２１ｅと天井面２１ｃに配置した点にある。すなわち、エレベータかご２１の左右の側面２１ａ，２１ｅの中央部近くに転向シーブ２２ｅ，２２ｆを取り付け、さらに両側面２１ａ，２１ｂの上稜線近くの位置に転向シーブ２２ｇ，２２ｈを取り付け、かご２１の天井面２１ｃの左右両端近くに天井面２１ｃと回転面が平行になるように転向シーブ２２ｉ，２２ｊを取り付けている。そして、釣合錘２８の配置、駆動装置２６とトラクションシーブ２５の配置は、図５に示した第３の実施の形態と同様である。
【００３５】
第４の実施の形態のエレベータ装置でも、第３の実施の形態と同様に、吊りロープ２３に懸垂されたエレベータかご２１が動滑車的な動作を行い、駆動装置２６の容量が小さくて済む。またトラクションシーブ２５を有する駆動装置２６はエレベータかご２１の昇降移動空間と昇降路２４の側壁との間の間隙に収容されており、しかもエレベータかご２１は昇降路２４の上方と下方とに空間を必要とせず、昇降路２４の天井及び床近くまで昇降可能であるため、昇降路２４の高さを最小限に抑えることができる。加えて、エレベータかご２１の側面２１ａ，２１ｅに取り付けられた転向シーブ２２ｅ，２２ｆ，２２ｇ，２２ｈの位置は、それらと組をなす天井面２１ｃの転向シーブ２２ｉ，２２ｊの位置と共に自由に設定することができる利点がある。
【００３６】
次に、本発明の第５の実施の形態のエレベータ装置を、図７及び図８に基づいて説明する。第５の実施の形態は、図５及び図６に示した第４の実施の形態においてエレベータかご２１の天井面２１ｃに取り付けた転向シーブ２２ｉ，２２ｊに代えて、エレベータかご２１の背面２１ｄに転向シーブ２２ｋ，２２ｌを取り付けた点に特徴がある。また、昇降路２４におけるエレベータかご２１の昇降移動空間と昇降路背壁との間の間隙に駆動装置２６とトラクションシーブ２５を設置し、同じ間隙空間において釣合錘２８を昇降させる構成にしている。
【００３７】
第５の実施の形態のエレベータ装置では、第４の実施の形態と同様に、駆動装置２６の容量が小さくて済み、またトラクションシーブ２５を有する駆動装置２６がエレベータかご２１の昇降移動空間と昇降路２４の背壁との間の間隙に収容されており、しかもエレベータかご２１は昇降路２４の上方と下方とに空間を必要とせず、昇降路２４の天井及び床近くまで昇降可能であるため、昇降路２４の高さを最小限に抑えることができる。加えて、エレベータかご２１の側面２１ａ，２１ｅに取り付けられた転向シーブ２２ｅ，２２ｆ，２２ｇ，２２ｈの位置は、それらと組をなす背面２１ｄの転向シーブ２２ｋ，２２ｌの位置と共に自由に設定することができる利点がある。
【００３８】
次に、本発明の第６の実施の形態のエレベータ装置を、図９及び図１０に基づいて説明する。エレベータかご２１の一方（ここでは、正面から見て右側）側面２１ａと背面２１ｄとに転向シーブ２２ｍ，２２ｎを取り付け、さらに床面２１ｆにもそれに平行な回転面で回転する転向シーブ２２ｏを取り付け、また駆動装置２６とトラクションシーブ２５をエレベータかご２１の昇降移動空間と昇降路２４の背壁との間の間隙の上部に設置し、同じ間隙空間において釣合錘２８が昇降するように設置し、吊りロープ２３をこれらの転向シーブ２２ｍ，２２ｎ，２２ｏ、そして釣合錘２８に取り付けた転向シーブ２９に巻き掛け、またトラクションシーブ２５に巻き掛け、その両端を昇降路２４の天井部に架設された支持部材（図示せず）に連結し、支持させている。
【００３９】
この第６の実施の形態のエレベータ装置でも、第３〜第５の実施の形態と同様に、駆動装置２６の容量が小さくて済み、またトラクションシーブ２５を有する駆動装置２６がエレベータかご２１の昇降移動空間と昇降路２４の背壁との間の間隙に収容されていて、昇降路２４の高さを最小限に抑えることができ、その上、エレベータかご２１の側面２１ａ、背面２１ｄ、床面２１ｆに取り付けられた転向シーブ２２ｍ，２２ｎ，２２ｏの位置を自由に設定することができる利点がある。
【００４０】
次に、本発明の第７の実施の形態のエレベータ装置を、図１１に基づいて説明する。第７の実施の形態のエレベータ装置は、図７及び図８に示した第５の実施の形態においてエレベータかご２１の側面２１ａ，２１ｅの上部に取り付けた転向シーブ２２ｇ，２２ｈ及び背面２１ｄに取り付けた転向シーブ２２ｋ，２２ｌに代えて、エレベータかご２１の天井面２１ｃの両側に、転向シーブ２２ｐ，２２ｑをそれらの回転面が左右方向のほぼ垂直面になるように取り付け、吊りロープ２３をこれらの転向シーブ２２ｅ，２２ｆ，２２ｐ，２２ｑ、そして釣合錘２８の頂部の転向シーブ２９に巻き掛けた構成である。
【００４１】
この第７の実施の形態のエレベータ装置でも、第５の実施の形態と同様の作用効果を奏し、加えて、エレベータかご２１に取り付ける転向シーブの使用個数を４個に減らせる利点がある。
【００４２】
次に、本発明の第８の実施の形態のエレベータ装置を、図１２に基づいて説明する。この第８の実施の形態は、図１に示した第１の実施の形態において駆動装置２６の代わりに、複数台の駆動装置２６ａ，２６ｂを使用し、これらを同時に駆動する構成にした点に特徴がある。すなわち、エレベータかご２１のためのガイドレール２０ａ，２０ｂのうち、一方のガイドレール２０ｂの上端部に、それぞれがトラクションシーブ２５ａ，２５ｂを有する複数台の駆動装置２６ａ，２６ｂを取り付け、これらのトラクションシーブ２５ａ，２５ｂを同時に巻き上げ／巻き戻しするようにしている。
【００４３】
吊りロープ２３は、その一端２３ａが釣合錘２８に取り付けられた転向シーブ２９に巻き掛けられた後に昇降路２４の天井部に連結され、支持されている。そして、この吊りロープ２３の他端２３ｂは、下方からまず上側トラクションシーブ２５ａの上半周を経て下側トラクションシーブ２５ｂの下半周に巻き掛けられ、再度、上側トラクションシーブ２５ａの上半周を経て下方に下り、エレベータかご２１の側面２１ｅに取り付けられた転向シーブ２２に巻き掛けられ、その後に昇降路２４の天井部に連結支持されている。これによって、２台のトラクションシーブ２５ａ，２５ｂそれぞれに等しく３／４周ずつ巻き掛けることができる。なお、この場合、上側トラクションシーブ２５ａのロープ溝は、下側トラクションシーブ２５ｂの２倍、形成されている。
【００４４】
この第８の実施の形態のエレベータ装置では、駆動装置２６ａ，２６ｂの２台で吊りロープ２３を巻き上げるようにしているので、エレベータかご２１を駆動する推力を２倍にすることができ、大容量のエレベータかご２１の駆動に対応することができる。
【００４５】
なお、図１３に示すように、複数台の駆動装置２６ａ，２６ｂを横並びに設置することも可能である。この場合、吊りロープ２３は、駆動装置２６ａ，２６ｂそれぞれのトラクションシーブ２５ａ，２５ｂの部分では、下方からまず前側のトラクションシーブ２５ａの上方を１／４周させ、後側のトラクションシーブ２５ｂの後半周を経て再び前側のトラクションシーブ２５ａを下方より半周させ、再度、後側のトラクションシーブ２５ｂの上方を１／４周するように巻き掛けて下方に至り、エレベータかご２１の側面２１ｅに取り付けられた転向シーブ２２に巻き掛ける。これによって、２台のトラクションシーブ２５ａ，２５ｂそれぞれに等しく３／４周ずつ巻き掛けることができる。
【００４６】
また、複数台の駆動装置を並設し、それぞれのトラクションシーブに吊りロープを巻き掛ける構成は、第１の実施の形態〜第７の実施の形態のいずれのエレベータ装置においてもその駆動装置２６に置き換えて採用することができる。
【００４７】
さらに、これらの複数台の駆動装置を採用する場合、それらを１台の制御装置によって同期的に制御することにより、装置構成が複雑化するのを防止することができる。
【００４８】
次に、本発明の第９の実施の形態のエレベータ装置を、図１４及び図１５に基づいて説明する。上述した第３〜第７の実施の形態のようにエレベータかご２１の左右両側面２１ａ，２１ｄ、あるいは側面２１ａ，２１ｅと背面２１ｄ又は天井面２１ｃとの複数面に転向シーブを取り付けている場合には、図１４に示すようにエレベータかご２１の重心位置Ｇに対して、それらの転向シーブ２２ａ〜２２ｄの配置を対称（この場合には１８０度対称）にすることができる。
【００４９】
また図１５に示したように、エレベータかご２１の側面２１ａと背面２１ｄ、そして底面２１ｆに転向シーブ２２ｍ〜２２ｏが設置されている場合にも、同様に、エレベータかご２１の重心位置Ｇに対して、それらの転向シーブの配置を対称（この場合には、９０度対称）にすることができる。
【００５０】
これによって、エレベータかご２１の重心Ｇを挟む形でエレベータかご２１を懸垂することができ、ガイドレール２０ａ，２０ｂに過大な偏荷重が作用することを防止し、安定した昇降が実現できる。
【００５１】
なお、上記の各実施の形態において、左右のいずれか片方の側面側に駆動装置、トラクションシーブ、釣合錘が配置されている場合、それとは反対側の側面側に設置することも可能である。
【００５２】
【発明の効果】
以上のように、請求項１〜７の発明によれば、エレベータかごの昇降路の上方や下方に隣接して機械室などの余分な空間を必要とせず、省スペース化が可能である。
【００５５】
請求項８の発明によれば、請求項３〜７のエレベータ装置において、エレベータかごの側面又は背面に設けられたかご側転向シーブをエレベータかごの重心に対して上方から見て対称の位置に配置したので、エレベータかごのガイドレール及び案内装置にかかる偏荷重を防止することができる。
【００５６】
請求項９の発明によれば、請求項１〜８のエレベータ装置において、駆動装置に各々がトラクションシーブを有する複数の薄型巻上機を用いたので、大容量のエレベータかごのトラクション駆動が可能である。
【００５７】
請求項１０の発明によれば、請求項９のエレベータ装置において、複数の薄型巻上機を１台の制御装置によって同時に駆動するようにしたので、制御の共通化により装置構成を簡素化できる。
【図面の簡単な説明】
【図１】本発明の第１の実施の形態の斜視図。
【図２】上記の実施の形態の平面図。
【図３】本発明の第２の実施の形態の斜視図。
【図４】上記の実施の形態の平面図。
【図５】本発明の第３の実施の形態の斜視図。
【図６】本発明の第４の実施の形態の斜視図。
【図７】本発明の第５の実施の形態の斜視図。
【図８】上記の実施の形態の平面図。
【図９】本発明の第６の実施の形態の斜視図。
【図１０】上記の実施の形態の平面図。
【図１１】本発明の第７の実施の形態の斜視図。
【図１２】本発明の第８の実施の形態の斜視図。
【図１３】上記の実施の形態の別の例の斜視図。
【図１４】本発明の第９の実施の形態の平面図。
【図１５】上記の実施の形態の別の例の平面図。
【図１６】従来例の斜視図。
【図１７】他の従来例の斜視図。
【符号の説明】
２０ａ，２０ｂかご用ガイドレール
２１エレベータかご
２１ａ，２１ｅ側面
２１ｂ正面
２１ｃ天井面
２１ｄ背面
２１ｆ底面
２２ａ〜２２ｑ転向シーブ
２３吊りロープ
２４昇降路
２４ａ，２４ｃ側壁
２４ｂ背壁
２５，２５ａ，２５ｂトラクションシーブ
２６，２６ａ，２６ｂ駆動装置
２７ａ，２７ｂ釣合錘用ガイドレール
２８釣合錘
２９転向シーブ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a traction type elevator apparatus in which a drive device is installed in a hoistway.
[0002]
[Prior art]
In recent years, especially in urban areas, the efficient use of the building itself has been demanded. For example, the elevator's machine room that protrudes from the rooftop can affect the right to sunshine and damage the aesthetics. It has become.
[0003]
So far, various ideas have been made to accommodate the elevator control device in the hoistway and make it compact without particularly installing the elevator machine room. For example, as shown in FIG. 16, a “traction sheave elevator” described in Japanese Patent No. 2593288 includes a flat and thin driving device 2 including a traction sheave 1, and a side wall 3 a in the hoistway 3 and an elevator car 4. A sheave 5a that is installed in a gap formed between the up-and-down moving space and that is attached to the lower part of the car 4 and forms a moving pulley, and a sheave 5b that is attached to the upper part of the counterweight 6 and is sequentially formed The suspension rope 7 is wrapped around and both ends of the suspension rope 7 are connected to and supported by the ceiling wall 3 b of the hoistway 3. FIG. 16 shows that the pit 3c in the hoistway 3 is located below the position 3d on the first floor (1F).
[0004]
The elevator apparatus shown in FIG. 16 is a system in which a suspension rope 7 is wound around a sheave 5a below the car 4 and the car is driven like a moving pulley, and the space above the car 4 is effectively utilized by the above configuration. In addition, the motor capacity of the drive mechanism can be kept relatively small, and the space occupied by the drive device can be reduced.
[0005]
In addition, as shown in FIG. 17, an “elevator device” described in Japanese Patent Laid-Open No. 9-156855 has a flat and thin drive device 12 disposed in the upper space of the counterweight 16 and is located at the top in the hoistway 13. The car 4 is configured to be suspended through the provided turning sheaves 18a and 18b and the warping sheave 18c.
[0006]
In this way, by installing the flat and thin drive device 12 including the traction sheave 11 between the side wall in the hoistway 13 and the space formed between the elevator car 14 ascending / descending movement space, Thus, the space occupied by the entire apparatus can be made compact without providing a special machine room, and an elevator apparatus with good space efficiency can be realized.
[0007]
[Problems to be solved by the invention]
However, such a conventional elevator apparatus has the following problems. In the elevator apparatus shown in FIG. 16, since a sheave that forms a moving pulley is attached to the lower part of the car, a space is required under the elevator car, and the position where the car is hung is limited to the left and right side surfaces under the car. As a result, it was difficult to freely lay out elevator cars, counterweights, hoisting machines, etc. in a limited space. Further, the conventional elevator apparatus shown in FIG. 17 has a problem that a space for accommodating the turning sheave is required in the upper part of the hoistway.
[0008]
The present invention has been made in view of such conventional problems, and provides an elevator apparatus that can save space without providing a special machine room and can be freely arranged in accordance with a hoistway space. For the purpose.
[0009]
[Means for Solving the Problems]
The invention of claim 1 is a pair of devices provided in a hoistway. For basket The elevator car that goes up and down along the guide rail, provided in the hoistway For a pair of counterweights An elevator apparatus comprising: a counterweight that moves up and down along the guide rail; a suspension rope that suspends the elevator car and the counterweight; and a drive device that rotationally drives a traction sheave around which the suspension rope is wound. Because The pair of car guide rails are fixed to the left and right side walls of the hoistway, and the pair of counterweight guide rails are fixed to the side walls at the left and right side walls of the hoistway. Fixed to a position adjacent to one of the car guide rails, The drive device is configured to be thin, and the hoistway The counterweight guide rail is fixed The suspension rope is housed in a gap formed between a side wall and the elevator car's up-and-down movement space. Facing the gap On the side Rotate in a plane parallel to the side Provided Car side With turning sheave , On the counterweight Rotate in a plane parallel to the car side turning sheave Provided Counterweight side It is wound around a turning sheave, and both ends thereof are connected and supported by a support member installed in the upper end of the hoistway.
[0010]
The invention of claim 2 is a pair of devices provided in the hoistway. For basket The elevator car that goes up and down along the guide rail, provided in the hoistway For a pair of counterweights An elevator apparatus comprising: a counterweight that moves up and down along the guide rail; a suspension rope that suspends the elevator car and the counterweight; and a drive device that rotationally drives a traction sheave around which the suspension rope is wound. Because The pair of car guide rails are fixed to the left and right side walls of the hoistway, and the pair of counterweight guide rails are fixed to the back wall of the hoistway facing the back of the elevator car. And The driving device is configured to be thin, and is housed in a gap formed between a back wall of the hoistway and a lifting movement space of the elevator car, and the suspension rope is disposed on the rear surface of the elevator car. Rotate in a plane parallel to the back With the car side turning sheave provided , On the counterweight Rotate in a plane parallel to the car side turning sheave Provided Counterweight side It is wound around a turning sheave, and both ends thereof are connected and supported by a support member installed in the upper end of the hoistway.
[0011]
The invention of claim 3 includes an elevator car that moves up and down along a pair of guide rails provided in the hoistway, a counterweight that moves up and down along other guide rails provided in the hoistway, An elevator apparatus comprising a suspension rope that suspends the elevator car and a counterweight, and a drive device that rotationally drives a traction sheave around which the suspension rope is wound, wherein the drive device is configured to be thin. And in a gap formed between the side wall of the hoistway and the elevator car moving space, and the suspension rope is provided on both sides and the bottom surface of the elevator car. Rotate in a plane parallel to each of the faces Provided Car side Provided on the turning sheave and the counterweight Counterweight side It is wound around a turning sheave, and both ends thereof are connected and supported by a support member installed in the upper end of the hoistway.
[0012]
The invention of claim 4 includes an elevator car that moves up and down along a pair of guide rails provided in the hoistway, a counterweight that moves up and down along other guide rails provided in the hoistway, An elevator apparatus comprising a suspension rope that suspends the elevator car and a counterweight, and a drive device that rotationally drives a traction sheave around which the suspension rope is wound, wherein the drive device is configured to be thin. And in a gap formed between a side wall of the hoistway and an elevator car moving space, and the suspension rope is provided on both side surfaces and the ceiling surface of the elevator car. Rotate in a plane parallel to each of the faces Provided Car side Provided on the turning sheave and the counterweight Counterweight side It is wound around a turning sheave, and both ends thereof are connected and supported by a support member installed in the upper end of the hoistway.
[0013]
The invention of claim 5 includes an elevator car that moves up and down along a pair of guide rails provided in the hoistway, a counterweight that moves up and down along other guide rails provided in the hoistway, An elevator apparatus comprising a suspension rope that suspends the elevator car and a counterweight, and a drive device that rotationally drives a traction sheave around which the suspension rope is wound, wherein the drive device is configured to be thin. , And accommodated in a gap formed between the back wall of the hoistway and the lift movement space of the elevator car, and the suspension ropes are provided on both sides and the back of the elevator car. Rotate in a plane parallel to each of the faces Provided Car side Provided on the turning sheave and the counterweight Counterweight side It is wound around a turning sheave, and both ends thereof are connected and supported by a support member installed in the upper end of the hoistway.
[0014]
The invention of claim 6 includes an elevator car that moves up and down along a pair of guide rails provided in the hoistway, a counterweight that moves up and down along other guide rails provided in the hoistway, An elevator apparatus comprising a suspension rope that suspends the elevator car and a counterweight, and a drive device that rotationally drives a traction sheave around which the suspension rope is wound, wherein the drive device is configured to be thin. And in a gap formed between the back wall or side wall of the hoistway and the elevator car moving space, and the suspension rope is provided on the side, back and bottom of the elevator car. Rotate in a plane parallel to each of the faces Provided Car side Provided on the turning sheave and the counterweight Counterweight side It is wound around a turning sheave, and both ends thereof are connected and supported by a support member installed in the upper end of the hoistway.
[0015]
The invention of claim 7 includes an elevator car that moves up and down along a pair of guide rails provided in the hoistway, a counterweight that moves up and down along other guide rails provided in the hoistway, An elevator apparatus comprising a suspension rope that suspends the elevator car and a counterweight, and a drive device that rotationally drives a traction sheave around which the suspension rope is wound, wherein the drive device is configured to be thin. And in a gap formed between the back wall of the hoistway and the lifting / lowering movement space of the elevator car, and the suspension rope is provided on both sides and the ceiling surface of the elevator car. Rotate in a plane parallel to each of the faces It is wound around a turning sheave provided and a turning sheave provided on the counterweight, and both ends thereof are connected and supported by a support member installed in the upper end of the hoistway.
[0016]
In the elevator apparatus according to the first to seventh aspects of the invention, it is possible to save space without requiring an extra space such as a machine room adjacent to the upper or lower side of the elevator car hoistway.
[0019]
Claim 8 The elevator apparatus according to any one of claims 3 to 7 is provided on a side surface or a back surface of the elevator car. Car side The turning sheave is arranged at a symmetrical position when viewed from above with respect to the center of gravity of the elevator car, and it is possible to prevent an uneven load on the guide rail and the guide device of the elevator car.
[0020]
Claim 9 The invention of claim 1 to claim 1 8 In the elevator apparatus, a plurality of thin hoisting machines each having a traction sheave are used as the driving apparatus, and traction driving of a large capacity elevator car is possible.
[0021]
Claim 10 The invention of claim 9 In this elevator apparatus, the plurality of thin hoisting machines are driven simultaneously by a single control apparatus, and the apparatus configuration can be simplified by common control.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 and 2 show the configuration of the elevator apparatus according to the first embodiment of the present invention. The elevator car 21 is guided by car guide rails 20a and 20b attached to the side wall 24a of the hoistway 24 with brackets (not shown). A turning sheave 22 is attached to a side surface 21a of the elevator car 21 (any one of the left and right side surfaces with the entrance side of the elevator car 21 as the front surface 21b) in a positional relationship in which the rotational surface is parallel to the side surface 21a. A suspension rope 23 is wound around the turning sheave 22, and the elevator car 21 is suspended by the suspension rope 23 via the turning sheave 22.
[0023]
A driving device 26 is fixed to the top of the guide rail 20a installed on the side surface side to which the turning sheave 22 is attached. A flat and thin traction sheave 25 that is rotationally driven by the driving device 26 is a hoistway 24. Is located in the gap between the side wall 24a of the elevator car 21 and the space in which the elevator car 21 moves up and down. Then, the suspension rope 23 is wound around the traction sheave 25, and the suspension rope 23 is wound / rewinded into a fishing bottle type by the rotation of the traction sheave 25.
[0024]
The counterweight guide rails 27a and 27b are installed at positions adjacent to the car guide rail 20a, and the counterweight 28 is guided in such a manner that the counterweight 28 can be raised and lowered. A turning sheave 29 is attached to the top of the counterweight 28, and a suspension rope 23 is also wound around the turning sheave 29 to suspend the counterweight 28. Both ends of the suspension rope 23 are connected and supported via a hitch spring (not shown) to a support member (not shown) installed on the ceiling of the hoistway 24 above the elevator car 21. Yes.
[0025]
Next, operation | movement of the elevator apparatus of said 1st Embodiment is demonstrated. By driving the driving device 26, the traction sheave 25 is rotationally driven, the suspension rope 23 wound around the traction sheave 25 is wound up / rewinded, and the elevator car 21 suspended from the suspension rope 23 and the counterweight 28. Are moved up and down while being guided by the respective guide rails 20a, 20b; 27a, 27b in opposite directions. At this time, since the elevator car 21 is suspended from the suspension rope 23 via the turning sheave 22 provided on the side surface 21a below the ceiling surface 21c, the ceiling surface 21c of the elevator car 21 is located above the hoistway 24. Ascend beyond the drive 26.
[0026]
Thereby, in the elevator apparatus of 1st Embodiment, since the elevator car 21 suspended by the suspension rope 23 performs a moving pulley-like movement with the turning sheave 22 attached to it, the elevator car 21 is made into the traction sheave 25. Therefore, the capacity of the drive device 26 can be smaller than in the case of a mechanism that lifts directly. The driving device 26 is installed in the hoistway 24 in the gap between the elevator moving space of the elevator car 21 and the side wall 24 a of the hoistway 24, and the elevator car 21 is located above and below the hoistway 24. Can be moved up and down to the ceiling and floor of the hoistway 24, Hoistway 24 Can be set to a minimum height.
[0027]
Next, the elevator apparatus of the 2nd Embodiment of this invention is demonstrated based on FIG.3 and FIG.4. The elevator apparatus according to the second embodiment is different from the elevator apparatus according to the first embodiment shown in FIGS. 1 and 2 in that the counterweight 28 is a guide rail installed on the back wall 24b of the hoistway 24. 27a and 27b are set so as to freely move up and down, a turning sheave 22 is attached to the rear surface 21d of the elevator car 21, a flat and thin driving device 26 is attached to the upper part of the counterweight guide rail 27a, and the hoistway 24 The traction sheave 25 is located in the gap between the elevator car 21 lifting and lowering movement space and the back wall 24b of the hoistway 24. Other configurations are the same as those of the first embodiment shown in FIGS. 1 and 2, and the same elements are denoted by the same reference numerals.
[0028]
The elevator apparatus according to the second embodiment is useful for use in an installation place where the depth of the hoistway 24 is relatively large.
[0029]
Next, the elevator apparatus of the 3rd Embodiment of this invention is demonstrated based on FIG. In the third embodiment, the side surface 21a of the elevator car 21 guided by the car guide rails 20a, 20b attached to the side wall of the hoistway 24 (left side as viewed from the front) with a bracket (not shown) or the like. The turning sheaves 22a and 22b are attached to the left and right symmetrical positions of the respective 21e, and further turning sheaves 22c and 22d having a rotation surface parallel to the floor surface 21f are attached to the lower surface side of the floor surface 21f of the elevator car 21. A suspension rope 23 is wound around the cable. Further, the counterweight guide rails 27a and 27b are installed on the side walls of the hoistway 24 adjacent to one of the car guide rails 20b, and thereby the counterweight 28 is guided to ascend and descend. A turning sheave 29 is attached to the top of the counterweight 28.
[0030]
In the case of the third embodiment, the driving device 26 is attached to the upper portion of the car guide rail 20b, and the traction sheave 25 is set in the gap between the elevator car 21 lifting and lowering movement space and the side wall of the hoistway 24. It is.
[0031]
The suspension rope 23 is wound around a traction sheave 25, wound around turning sheaves 22a and 22b attached to both side surfaces 21a and 21e of the elevator car 21, and turning sheaves 22c and 22d attached to the bottom surface. It is wound around a turning sheave 29 of the counterweight 28, and both ends thereof are connected and supported via a hitch spring to a support member (not shown) installed on the ceiling portion above the hoistway 24.
[0032]
In the elevator apparatus according to the third embodiment, by driving the driving device 26, the suspension rope 23 is driven by the engagement with the traction sheave 25, and the elevator car 21 suspended from the suspension rope 23 and the balance. The weight 28 is guided by the respective guide rails 20a, 20b; 27a, 27b and moves up and down in opposite directions. At this time, since the elevator car 21 is suspended by the suspension rope 23 via the turning sheaves 22a and 22b attached to the side surfaces 21a and 21e below the ceiling surface 21c, the ceiling surface 21c of the elevator car 21 is Ascending to the position higher than the drive device 26 above the hoistway 24.
[0033]
Thereby, according to 3rd Embodiment, since the elevator car 21 suspended by the suspension rope 23 performs operation | movement like a moving pulley, the capacity | capacitance of the drive device 26 may be small. The driving device 26 having the traction sheave 25 is accommodated in a gap between the elevator moving space of the elevator car 21 and the side wall of the hoistway 24, and the elevator car 21 has a space above and below the hoistway 24. The height of the hoistway 24 can be minimized because the hoistway 24 can be raised and lowered to near the ceiling and floor without being required. In addition, there is an advantage that the positions of the turning sheaves 22a and 22b attached to the side surfaces 21a and 21e of the elevator car 21 can be freely set together with the positions of the turning sheaves 22c and 22d of the floor surface 21f that makes a pair with them. is there.
[0034]
Next, the elevator apparatus of the 4th Embodiment of this invention is demonstrated based on FIG. The feature of the fourth embodiment is that turning sheaves are arranged on both side surfaces 21a and 21e of the elevator car 21 and the ceiling surface 21c so as to be upside down with respect to the third embodiment. That is, the turning sheaves 22e and 22f are attached near the center of the left and right side surfaces 21a and 21e of the elevator car 21, and the turning sheaves 22g and 22h are attached near the upper ridge lines of the side surfaces 21a and 21b. Turning sheaves 22i and 22j are attached near the left and right ends of the surface 21c so that the ceiling surface 21c and the rotation surface are parallel to each other. The arrangement of the counterweight 28 and the arrangement of the driving device 26 and the traction sheave 25 are the same as those in the third embodiment shown in FIG.
[0035]
Also in the elevator apparatus of the fourth embodiment, the elevator car 21 suspended from the suspension rope 23 performs a dynamic pulley operation, and the capacity of the drive apparatus 26 can be reduced, as in the third embodiment. The driving device 26 having the traction sheave 25 is accommodated in a gap between the elevator moving space of the elevator car 21 and the side wall of the hoistway 24, and the elevator car 21 has a space above and below the hoistway 24. The height of the hoistway 24 can be minimized because the hoistway 24 can be raised and lowered to near the ceiling and floor without being required. In addition, the positions of the turning sheaves 22e, 22f, 22g, and 22h attached to the side surfaces 21a and 21e of the elevator car 21 can be freely set together with the positions of the turning sheaves 22i and 22j of the ceiling surface 21c that form a pair with them. There is an advantage that can be.
[0036]
Next, the elevator apparatus of the 5th Embodiment of this invention is demonstrated based on FIG.7 and FIG.8. In the fifth embodiment, instead of the turning sheaves 22i and 22j attached to the ceiling surface 21c of the elevator car 21 in the fourth embodiment shown in FIGS. 5 and 6, the turning is made to the rear surface 21d of the elevator car 21. It is characterized in that the sheaves 22k and 22l are attached. In addition, the drive device 26 and the traction sheave 25 are installed in the gap between the elevator car 21 in the hoistway 24 between the elevator car 21 and the hoistway back wall, and the counterweight 28 is raised and lowered in the same gap space. .
[0037]
In the elevator apparatus according to the fifth embodiment, similarly to the fourth embodiment, the capacity of the drive device 26 may be small, and the drive device 26 having the traction sheave 25 may move up and down the elevator car 21 and the elevator moving space. Since the elevator car 21 is accommodated in a gap between the back wall of the road 24 and the elevator car 21 does not require a space above and below the hoistway 24, the elevator car 21 can move up and down to the ceiling and floor of the hoistway 24. The height of the hoistway 24 can be minimized. In addition, the positions of the turning sheaves 22e, 22f, 22g, and 22h attached to the side surfaces 21a and 21e of the elevator car 21 can be freely set together with the positions of the turning sheaves 22k and 22l of the rear face 21d that form a pair with them. There are advantages you can do.
[0038]
Next, the elevator apparatus of the 6th Embodiment of this invention is demonstrated based on FIG.9 and FIG.10. Turning sheaves 22m and 22n are attached to one side (here, the right side when viewed from the front) side surface 21a and the back surface 21d of the elevator car 21, and further turning sheaves 22o that rotate on a rotating surface parallel to the floor surface 21f are attached. In addition, the driving device 26 and the traction sheave 25 are installed on the upper part of the gap between the elevator moving space of the elevator car 21 and the back wall of the hoistway 24 so that the counterweight 28 is raised and lowered in the same gap space. The suspension rope 23 is wound around the turning sheaves 22m, 22n, and 22o, and the turning sheave 29 attached to the counterweight 28, and is also wound around the traction sheave 25, and both ends thereof are installed on the ceiling portion of the hoistway 24. It is connected to and supported by a support member (not shown).
[0039]
Also in the elevator apparatus of the sixth embodiment, the capacity of the drive device 26 is small as in the third to fifth embodiments, and the drive device 26 having the traction sheave 25 is used for raising and lowering the elevator car 21. It is accommodated in the gap between the moving space and the back wall of the hoistway 24, and the height of the hoistway 24 can be minimized. In addition, the side surface 21a, the rear surface 21d, and the floor surface of the elevator car 21 There is an advantage that the positions of the turning sheaves 22m, 22n, and 22o attached to 21f can be freely set.
[0040]
Next, the elevator apparatus of the 7th Embodiment of this invention is demonstrated based on FIG. The elevator apparatus according to the seventh embodiment is attached to the turning sheaves 22g and 22h and the rear face 21d attached to the upper portions of the side surfaces 21a and 21e of the elevator car 21 in the fifth embodiment shown in FIGS. Instead of the turning sheaves 22k and 22l, turning sheaves 22p and 22q are attached to both sides of the ceiling surface 21c of the elevator car 21 so that their rotational surfaces are substantially vertical surfaces in the left-right direction, and the suspension ropes 23 are turned in these directions. The sheaves 22e, 22f, 22p, and 22q are wound around the turning sheave 29 at the top of the counterweight 28.
[0041]
The elevator apparatus of the seventh embodiment also has the same effect as the fifth embodiment, and additionally has the advantage that the number of turning sheaves attached to the elevator car 21 can be reduced to four.
[0042]
Next, an elevator apparatus according to an eighth embodiment of the present invention will be described with reference to FIG. In the eighth embodiment, instead of the driving device 26 in the first embodiment shown in FIG. 1, a plurality of driving devices 26a and 26b are used, and these are driven simultaneously. There are features. That is, among the guide rails 20a and 20b for the elevator car 21, a plurality of drive devices 26a and 26b each having traction sheaves 25a and 25b are attached to the upper end portion of one guide rail 20b, and these traction sheaves are attached. 25a and 25b are simultaneously wound / rewinded.
[0043]
The suspension rope 23 is connected to and supported by the ceiling portion of the hoistway 24 after its one end 23 a is wound around a turning sheave 29 attached to the counterweight 28. The other end 23b of the suspension rope 23 is wound around the lower half circumference of the lower traction sheave 25b from the lower side first through the upper half circumference of the upper traction sheave 25a, and again downward through the upper half circumference of the upper traction sheave 25a. Downhill, it is wound around a turning sheave 22 attached to a side surface 21e of the elevator car 21, and is then connected and supported by the ceiling portion of the hoistway 24. As a result, the traction sheaves 25a and 25b can be wound equally around each 3/4 turn. In this case, the rope groove of the upper traction sheave 25a is formed twice as much as the lower traction sheave 25b.
[0044]
In the elevator apparatus according to the eighth embodiment, the suspension rope 23 is wound up by the two driving apparatuses 26a and 26b, so that the thrust force for driving the elevator car 21 can be doubled, and the capacity is large. This can correspond to driving of the elevator car 21.
[0045]
In addition, as shown in FIG. 13, it is also possible to install a plurality of drive devices 26a and 26b side by side. In this case, in the traction sheaves 25a and 25b of the driving devices 26a and 26b, the suspension rope 23 first makes a quarter turn from the lower side of the front traction sheave 25a, and the latter half of the rear side traction sheave 25b. After that, the front traction sheave 25a is made to make a half turn from below, and the upper part of the rear traction sheave 25b is wound again to make a ¼ turn, and the turn is attached to the side surface 21e of the elevator car 21. Wrap around the sheave 22. As a result, the traction sheaves 25a and 25b can be wound equally around each 3/4 turn.
[0046]
In addition, the configuration in which a plurality of drive devices are arranged in parallel and the suspension rope is wound around each traction sheave is provided in the drive device 26 in any of the elevator devices according to the first to seventh embodiments. It can be replaced and adopted.
[0047]
Further, when these plural drive devices are employed, the device configuration can be prevented from becoming complicated by controlling them synchronously by one control device.
[0048]
Next, an elevator apparatus according to a ninth embodiment of the present invention will be described with reference to FIGS. When turning sheaves are attached to the left and right side surfaces 21a and 21d of the elevator car 21 or a plurality of surfaces 21a and 21e and the back surface 21d or the ceiling surface 21c as in the third to seventh embodiments described above. 14, the arrangement of the turning sheaves 22a to 22d can be made symmetric (in this case, 180 degrees symmetric) with respect to the gravity center position G of the elevator car 21.
[0049]
Further, as shown in FIG. 15, when the turning sheaves 22 m to 22 o are installed on the side surface 21 a and the back surface 21 d and the bottom surface 21 f of the elevator car 21, the center of gravity G of the elevator car 21 is similarly set. The arrangement of the turning sheaves can be symmetric (in this case, 90 degrees symmetric).
[0050]
As a result, the elevator car 21 can be suspended while sandwiching the center of gravity G of the elevator car 21, and an excessively biased load is prevented from acting on the guide rails 20 a and 20 b, thereby realizing stable elevation.
[0051]
In each of the above-described embodiments, when the driving device, the traction sheave, and the counterweight are arranged on one of the left and right side surfaces, it can be installed on the side surface on the opposite side. .
[0052]
【The invention's effect】
As described above, according to the first to seventh aspects of the present invention, it is possible to save space without requiring an extra space such as a machine room adjacent to the upper and lower sides of the elevator car hoistway.
[0055]
Claim 8 According to the invention, in the elevator apparatus according to claims 3 to 7, the elevator apparatus is provided on a side surface or a back surface of the elevator car. Car side Since the turning sheave is disposed at a symmetrical position when viewed from above with respect to the center of gravity of the elevator car, it is possible to prevent an uneven load applied to the guide rail and the guide device of the elevator car.
[0056]
Claim 9 According to the present invention, claims 1 to 8 In this elevator apparatus, since a plurality of thin hoisting machines each having a traction sheave are used as the driving apparatus, traction driving of a large capacity elevator car is possible.
[0057]
Claim 10 According to the invention of claim 9 In the elevator apparatus, since a plurality of thin hoisting machines are driven simultaneously by a single control apparatus, the apparatus configuration can be simplified by common control.
[Brief description of the drawings]
FIG. 1 is a perspective view of a first embodiment of the present invention.
FIG. 2 is a plan view of the above embodiment.
FIG. 3 is a perspective view of a second embodiment of the present invention.
FIG. 4 is a plan view of the above embodiment.
FIG. 5 is a perspective view of a third embodiment of the present invention.
FIG. 6 is a perspective view of a fourth embodiment of the present invention.
FIG. 7 is a perspective view of a fifth embodiment of the present invention.
FIG. 8 is a plan view of the above embodiment.
FIG. 9 is a perspective view of a sixth embodiment of the present invention.
FIG. 10 is a plan view of the above embodiment.
FIG. 11 is a perspective view of a seventh embodiment of the present invention.
FIG. 12 is a perspective view of an eighth embodiment of the present invention.
FIG. 13 is a perspective view of another example of the above embodiment.
FIG. 14 is a plan view of a ninth embodiment of the present invention.
FIG. 15 is a plan view of another example of the above embodiment.
FIG. 16 is a perspective view of a conventional example.
FIG. 17 is a perspective view of another conventional example.
[Explanation of symbols]
20a, 20b Car guide rail
21 elevator car
21a, 21e side
21b front
21c Ceiling
21d back
21f Bottom
22a-22q turning sheave
23 Hanging rope
24 hoistway
24a, 24c side wall
24b back wall
25, 25a, 25b Traction sheave
26, 26a, 26b Driving device
27a, 27b Counterweight guide rail
28 counterweight
29 Turning sheave

Claims

An elevator car that moves up and down along a pair of car guide rails provided in the hoistway, a counterweight that goes up and down along a pair of counterweight guide rails provided in the hoistway; An elevator apparatus comprising a suspension rope that suspends the elevator car and a counterweight, and a drive device that rotationally drives a traction sheave around which the suspension rope is wound,
The pair of car guide rails are fixed to the left and right side walls of the hoistway,
The pair of counterweight guide rails is fixed at a position adjacent to one of the car guide rails fixed to the side wall on either side wall of the hoistway,
The drive device is configured to be thin, and is housed in a gap formed between a side wall to which the counterweight guide rail of the hoistway is fixed and a lift movement space of the elevator car,
The suspension rope is provided on a side surface facing the gap of the elevator car so as to rotate in a plane parallel to the side surface, and the counterweight is parallel to the car-side turning sheave on the counterweight. An elevator apparatus characterized in that it is wound around a counterweight-side turning sheave provided so as to rotate in a smooth plane, and both ends thereof are connected and supported by support members installed in the upper end of the hoistway.

An elevator car that moves up and down along a pair of car guide rails provided in the hoistway, a counterweight that goes up and down along a pair of counterweight guide rails provided in the hoistway; An elevator apparatus comprising a suspension rope that suspends the elevator car and a counterweight, and a drive device that rotationally drives a traction sheave around which the suspension rope is wound,
The pair of car guide rails are fixed to the left and right side walls of the hoistway,
The pair of counterweight guide rails are fixed to a back wall of the hoistway facing the back of the elevator car,
The driving device is configured to be thin, and is housed in a gap formed between a back wall of the hoistway and a lift moving space of the elevator car,
The suspension rope is provided on the rear surface of the elevator car so as to rotate in a plane parallel to the rear surface, and on the counterweight in a plane parallel to the car-side turning sheave. An elevator apparatus characterized in that it is wound around a counterweight-side turning sheave provided so as to rotate , and both ends thereof are connected to and supported by support members installed in the upper end of the hoistway.

An elevator car that moves up and down along a pair of guide rails provided in the hoistway, a counterweight that moves up and down along another guide rail provided in the hoistway, and the elevator car and the counterweight An elevator device comprising: a suspension rope that suspends the suspension rope; and a drive device that rotationally drives a traction sheave around which the suspension rope is wound,
The driving device is configured to be thin, and is housed in a gap formed between a side wall of the hoistway and a lifting / lowering movement space of the elevator car, and the suspension rope is provided on both side surfaces and a bottom surface of the elevator car. It is wrapped around a car-side turning sheave provided to rotate in a plane parallel to each of the surfaces and a counterweight-side turning sheave provided on the counterweight , and both ends thereof are within the upper end of the hoistway. An elevator apparatus characterized in that it is connected to and supported by a support member installed in the vehicle.

An elevator car that moves up and down along a pair of guide rails provided in the hoistway, a counterweight that moves up and down along another guide rail provided in the hoistway, and the elevator car and the counterweight An elevator device comprising: a suspension rope that suspends the suspension rope; and a drive device that rotationally drives a traction sheave around which the suspension rope is wound,
The drive device is configured to be thin, and is housed in a gap formed between a side wall of the hoistway and a lift moving space of the elevator car,
The suspension rope, the counterweight side provided in the counterweight and cage-side deflection sheave is provided so as to rotate at both sides and the ceiling surface and on the surface each parallel plane of said elevator car An elevator apparatus characterized in that it is wound around a turning sheave and both ends thereof are connected and supported by a support member installed in the upper end of the hoistway.

An elevator car that moves up and down along a pair of guide rails provided in the hoistway, a counterweight that moves up and down along another guide rail provided in the hoistway, and the elevator car and the counterweight An elevator device comprising: a suspension rope that suspends the suspension rope; and a drive device that rotationally drives a traction sheave around which the suspension rope is wound,
The driving device is configured to be thin, and is housed in a gap formed between a back wall of the hoistway and a lift moving space of the elevator car,
The suspension rope includes a car-side turning sheave provided on both sides and back of the elevator car so as to rotate in a plane parallel to each of the surfaces, and a counterweight-side turning sheave provided on the counterweight. An elevator apparatus characterized in that both ends thereof are connected to and supported by support members installed in the upper end portion of the hoistway.

An elevator car that moves up and down along a pair of guide rails provided in the hoistway, a counterweight that moves up and down along another guide rail provided in the hoistway, and the elevator car and the counterweight An elevator device comprising: a suspension rope that suspends the suspension rope; and a drive device that rotationally drives a traction sheave around which the suspension rope is wound,
The drive device is configured to be thin, and is housed in a gap formed between a back wall or a side wall of the hoistway and a lift moving space of the elevator car,
The suspension rope, the elevator car side, rear and bottom the surface each parallel plane counterweight side deflection provided with cage-side deflection sheave is provided to rotate the balance weight at the in An elevator apparatus characterized in that it is wound around a sheave and both ends thereof are connected and supported by a support member installed in the upper end of the hoistway.

An elevator car that moves up and down along a pair of guide rails provided in the hoistway, a counterweight that moves up and down along another guide rail provided in the hoistway, and the elevator car and the counterweight An elevator device comprising: a suspension rope that suspends the suspension rope; and a drive device that rotationally drives a traction sheave around which the suspension rope is wound,
The driving device is configured to be thin, and is housed in a gap formed between a back wall of the hoistway and a lift moving space of the elevator car,
The suspension rope is wrapped around a turning sheave provided on both sides and a ceiling surface of the elevator car so as to rotate in a plane parallel to each of the surfaces, and a turning sheave provided on the counterweight, An elevator apparatus characterized in that both ends thereof are connected to and supported by a support member installed in an upper end portion of the hoistway.

The elevator according to any one of claims 3 to 7, wherein a car-side turning sheave provided on a side surface or a rear surface of the elevator car is disposed at a symmetrical position when viewed from above with respect to the center of gravity of the elevator car. apparatus.

The elevator apparatus according to any one of claims 1 to 8 , wherein the driving device is a plurality of thin hoisting machines each having a traction sheave.

The elevator apparatus according to claim 9 , wherein the plurality of thin hoisting machines are simultaneously driven by a single control device.