JP4091286B2

JP4091286B2 - Return car device for elevator

Info

Publication number: JP4091286B2
Application number: JP2001328290A
Authority: JP
Inventors: 浩成宮本
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2001-10-25
Filing date: 2001-10-25
Publication date: 2008-05-28
Anticipated expiration: 2021-10-25
Also published as: JP2003128362A

Description

【０００１】
【発明の属する技術分野】
この発明は、エレベーターの主索が巻掛けられてエレベーターの昇降路内に配置されるエレベーター用返し車装置に関する。
【０００２】
【従来の技術】
昇降路内に巻上機が設けられた機械室なし形態等のエレベーターにおいて、エレベーターの主索が巻掛けられた返し車が、昇降路の内に固定された支持桁に高い剛性で装着されるのが一般的である。このため、返し車が回転することによって発生する振動がそのまま支持桁に伝達する。そして、昇降路内に設けられて支持桁が連結されたエレベーターのガイドレール等の部材を介して、返し車の振動が昇降路を設置した建物に伝播する。
【０００３】
これによって、建物に伝播した返し車の振動によって昇降路近くに形成された建物の居室等に騒音が生じる。このような居室等における騒音の発生を防ぐため従来、返し車の装着部と支持桁の間に防振ゴムを介装して、返し車の振動が建物に伝播しないようにしたエレベーター用返し車装置が設けられている。
【０００４】
【発明が解決しようとする課題】
上記のような従来のエレベーター用返し車装置において、狭隘なスペースに防振ゴムを配置することになる場合が多くこのときには防振ゴムを極力小形化する必要がある。このため、防振ゴムを許容面圧内に設計することが困難であったり、防振ゴムの硬度を上げた設計となって所要の振動減衰作用が得られなかったりするという問題点があった。
【０００５】
また、エレベーター主索の潤滑油等の飛散による防振ゴムの劣化、防振ゴムの損傷など使用環境による影響のために発生する振動減衰作用の低下、複数の防振ゴムによって返し車を支持する場合にはそれぞれの防振ゴムにおける負荷の不均衡等のために所要の振動減衰作用が達成されなくなる不具合がある。
【０００６】
この発明は、かかる問題点を解消するためになされたものであり、狭隘なスペースに設置できて所要の振動減衰作用を容易に得ることができるエレベーター用返し車装置を得ることを目的とする。
【０００７】
【課題を解決するための手段】
この発明に係るエレベーター用返し車装置においては、エレベーターの主索が巻掛けられてエレベーターの昇降路内に配置された返し車と、エレベーターの昇降路に互いに離れて平行に立設されて昇降路の側壁に支持された案内レールと、案内レールの上端部の相互間に架設され昇降路内に固定されて返し車に対向して設けられた支持桁と、鋼材からなり梁状をなし長手が支持桁と平行に配置された弾性支持材と、鋼板からなり弾性支持材の長手両端下面にそれぞれ配置されて支持桁及び弾性支持材の両者の間に介装されて固定され両者間の長手中間に空隙を形成する間隔片と、一側が弾性支持材の長手中間における反支持桁側に固定され、他側には返し車の軸が装着されて弾性支持材から離れた位置に返し車の軸を保持する鋼板製の取付台とを備えたものである。
【０００８】
また、この発明に係るエレベーター用返し車装置においては、鋼板からなる間隔片を、弾性支持材の幅寸法よりも狭幅であって弾性支持材の支持桁との対向面における面積よりも小さい面積に形成されたものとしたものである。
【０００９】
【発明の実施の形態】
実施の形態１．
図１〜図４は、この発明の実施の形態の一例を示す図で、図１はエレベーターの昇降路要部を概念的に示す縦断面図、図２は図１の要部拡大図、図３は図２の平面図、図４は図２の返し車箇所の側面図である。図において、１はエレベーターの昇降路、２は昇降路１に互いに離れて平行に立設されてブラケット３によって昇降路１の側壁に支持された案内レールである。
【００１０】
４は両側の案内レール２の上端部の相互間に架設されて昇降路１内に固定された支持桁、５は鋼材からなり梁状に形成されて長手が支持桁４と平行に配置された弾性支持材、６は鋼板からなる間隔片で、弾性支持材５の長手両端にそれぞれ配置されて支持桁４及び弾性支持材５の両者の間に介装されて固定され上記両者間の長手中間に空隙を形成する。７は弾性支持材５の長手中間における反支持桁４側に固定された取付台、８は返し車で、軸９が取付台７の反弾性支持材５側に装備され、図示が省略してあるがエレベーターの主索が巻掛けられる。
【００１１】
上記のように構成されたエレベーター用返し車装置において、弾性支持材５に返し車８が装着されて、間隔片６によって弾性支持材５が支持桁４に対して空隙を形成して固定される。これによって、弾性支持材５を介して支持桁４に対して返し車８が弾性支持される。また、支持桁４及び弾性支持材５の両者の間にこれら両者の対向面における面積に比べて面積の小さい間隔片６が介在することにより、振動伝播経路途中の接触面積が変化し、しかも摩擦損失が生じるため振動伝達を少なくすることができる。
【００１２】
また、上記のような構成において防振ゴムを配置することなく、返し車８が鋼材製の部材によって弾性支持される。このため、エレベーター用返し車装置を安価に製作できる。また、耐久性が高く据付後の調整、保守の手数を省くことができて保守費低減することができる。さらに、狭隘なスペースに容易に返し車８を弾性支持することができて所要の振動減衰作用を容易に得ることができる。このため、返し車８の振動が昇降路１近くに形成された建物の居室等に伝播して生じる騒音を少なくすることができ、建物の居室等を静粛化することができる。
【００１３】
また、防振ゴムを使用しないので、エレベーター主索の潤滑油等の飛散による防振ゴムの劣化、防振ゴムの損傷など使用環境による影響のために発生する振動減衰作用の低下、また複数の防振ゴムによって返し車４を支持する場合にそれぞれの防振ゴムにおける負荷の不均衡等のために所要の振動減衰作用が達成されなくなる不具合を解消することができる。
【００１４】
実施の形態２．
図５〜図７は、この発明の他の実施の形態の一例を示す図で、図５は前述の図２相当図、図６は図５の平面図、図７は図５の返し車箇所の側面図である。図において、前述の図１〜図４と同符号は相当部分を示し、１０は鋼板からなる間隔片で、弾性支持材５の幅寸法よりも狭幅であって弾性支持材５の支持桁４との対向面における面積よりも小さい面積に形成され、弾性支持材５の長手両端にそれぞれ配置されて支持桁４及び弾性支持材５の両者の間に介装されて固定され上記両者間に空隙を形成する。
【００１５】
上記のように構成されたエレベーター用返し車装置において、弾性支持材５に返し車８が装着されて、間隔片１０によって弾性支持材５が支持桁４に対して空隙を形成して装備される。したがって、詳細な説明を省略するが図５〜図７の実施の形態においても図１〜図４の実施の形態と同様な作用が得られる。
【００１６】
また、支持桁４及び弾性支持材５の両者の間にこれら両者の対向面における面積に比べて、前述の間隔片６よりもさらに小面積の間隔片１０が介在する。これにより、振動伝播経路途中の接触面積が急激に変化し、しかも摩擦損失が生じるため一層有効に振動伝達を少なくすることができる。
【００１７】
実施の形態３．
図８〜図１０も、この発明の他の実施の形態の一例を示す図で、図８は前述の図２相当図、図９は図８の平面図、図１０は図８の返し車箇所の側面図である。図において、前述の図１〜図４と同符号は相当部分を示し、１１は鋼板からなる取付台で、弾性支持材５の長手中間における反支持桁４側に固定されて弾性支持材５から離れた位置、すなわち支持桁４から図１０に示す距離Ｗ離れた位置に返し車８の軸９を支持する。
【００１８】
上記のように構成されたエレベーター用返し車装置において、弾性支持材５に返し車８が装着されて、間隔片６によって弾性支持材５が支持桁４に対して空隙を形成して装備される。したがって、詳細な説明を省略するが図８〜図１０の実施の形態においても図１〜図４の実施の形態と同様な作用が得られる。
【００１９】
また、返し車８が取付台１１によって支持桁４から図１０に示す距離Ｗ離れた位置に配置される。これによって、返し車８に発生する支持桁４及び弾性支持材５の両者の間の対向面に沿う方向の振動が、軸９から取付台１１に伝達することにより取付台１１自体が振動してエネルギーを放出する。このため、弾性支持材５による吸振作用の他に、上記両者の対向面に沿う方向の振動伝播を少なくすることができ、一層有効に振動伝達を減少することができる。
【００２０】
実施の形態４．
図１１〜図１３も、この発明の他の実施の形態の一例を示す図で、図１１は前述の図５相当図、図１２は図１１の平面図、図１３は図１１の返し車箇所の側面図である。図において、前述の図５〜図７と同符号は相当部分を示し、１１は鋼板からなる取付台で、弾性支持材５の長手中間における反支持桁４側に固定されて弾性支持材５から離れた位置、すなわち支持桁４から図１３に示す距離Ｗ離れた位置に返し車８の軸９を支持する。
【００２１】
上記のように構成されたエレベーター用返し車装置において、弾性支持材５に返し車８が装着されて、間隔片１０によって弾性支持材５が支持桁４に対して空隙を形成して装備される。したがって、詳細な説明を省略するが図１１〜図１３の実施の形態においても図５〜図７の実施の形態と同様な作用が得られる。
【００２２】
また、返し車８が取付台１１によって支持桁４から図１０に示す距離Ｗ離れた位置に配置される。これによって、返し車８に発生する支持桁４及び弾性支持材５の両者の間の対向面に沿う方向の振動が、軸９から取付台１１に伝達することにより取付台１１自体が振動してエネルギーを放出する。このため、弾性支持材５による吸振作用の他に、上記両者の対向面方向の振動伝播を少なくすることができ、一層有効に振動伝達を減少することができる。
【００２３】
【発明の効果】
この発明は以上説明したように、エレベーターの主索が巻掛けられてエレベーターの昇降路内に配置された返し車と、エレベーターの昇降路に互いに離れて平行に立設されて昇降路の側壁に支持された案内レールと、案内レールの上端部の相互間に架設され昇降路内に固定されて返し車に対向して設けられた支持桁と、鋼材からなり梁状をなし長手が支持桁と平行に配置された弾性支持材と、鋼板からなり弾性支持材の長手両端下面にそれぞれ配置されて支持桁及び弾性支持材の両者の間に介装されて固定され両者間の長手中間に空隙を形成する間隔片と、一側が弾性支持材の長手中間における反支持桁側に固定され、他側には返し車の軸が装着されて弾性支持材から離れた位置に返し車の軸を保持する鋼板製の取付台とを備えたものである。
【００２４】
このような構成により、返し車が弾性支持材によって支持桁に対して弾性支持され、支持桁及び弾性支持材の両者の間にこれら両者の対向面における面積に比べて面積の小さい間隔片が介在することにより、振動伝播経路途中の接触面積が変化し、しかも摩擦損失が生じるため振動伝達を減少することができる。また、防振ゴムを配置することなく返し車が鋼材製の部材によって弾性支持される。このため、エレベーター用返し車装置を安価に製作でき、また耐久性が高く据付後の調整、保守の手数を省くことができて保守費低減することができる。さらに、狭隘なスペースに容易に返し車を弾性支持することができて所要の振動減衰作用を得ることができて、返し車の振動が昇降路近くに形成された建物の居室等に伝播して生じる騒音を減少でき、建物の居室等を静粛化する効果がある。
また、返し車が取付台によって弾性支持材から離れた位置に配置される。これによって、返し車に発生する支持桁及び弾性支持材の両者の間の対向面に沿う方向の振動が、返し車の軸から取付台に伝達することにより取付台自体が振動してエネルギーを放出する。このため、弾性支持材による吸振作用の他に、上記両者の対向面に沿う方向の振動伝播を少なくすることができ、一層有効に振動伝達を減少する効果がある。
【００２５】
また、この発明は以上説明したように、鋼板からなる間隔片を、弾性支持材の幅寸法よりも狭幅であって弾性支持材の支持桁との対向面における面積よりも小さい面積に形成されたものとしたものである。
【００２６】
このような構成により、返し車が弾性支持材によって支持桁に対して弾性支持され、支持桁及び弾性支持材の両者の間にこれら両者の対向面における面積に比べて面積が小さく弾性支持材の幅寸法よりも狭幅の間隔片が介在する。これにより、振動伝播経路途中の接触面積が急激に変化し、しかも摩擦損失が生じるため一層有効に振動伝達を減少することができる。また、防振ゴムを配置することなく返し車が鋼材製の部材によって弾性支持される。このため、エレベーター用返し車装置を安価に製作でき、また耐久性が高く据付後の調整、保守の手数を省くことができて保守費低減することができる。さらに、狭隘なスペースに容易に返し車を弾性支持することができて所要の振動減衰作用を得ることができて、返し車の振動が昇降路近くに形成された建物の居室等に伝播して生じる騒音を減少でき、建物の居室等を静粛化する効果がある。
【図面の簡単な説明】
【図１】この発明の実施の形態１を示す図で、エレベーターの昇降路要部を概念的に示す縦断面図。
【図２】図１の要部拡大図。
【図３】図２の平面図。
【図４】図２の返し車箇所の側面図。
【図５】この発明の実施の形態２を示す図で、前述の図２相当図。
【図６】図５の平面図。
【図７】図５の返し車箇所の側面図。
【図８】この発明の実施の形態３を示す図で、前述の図２相当図。
【図９】図８の平面図。
【図１０】図８の返し車箇所の側面図。
【図１１】この発明の実施の形態４を示す図で、前述の図５相当図。
【図１２】図１１の平面図。
【図１３】図１１の返し車箇所の側面図。
【符号の説明】
１昇降路、４支持桁、５弾性支持材、６間隔片、８返し車、９軸、１０間隔片、１１取付台。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an elevator return wheel device in which a main rope of an elevator is wound and disposed in a hoistway of the elevator.
[0002]
[Prior art]
In an elevator with a hoisting machine provided in a hoistway, such as a machine room-less elevator, a return wheel around which the main rope of the elevator is wound is attached to a support girder fixed in the hoistway with high rigidity. It is common. For this reason, the vibration generated by the rotation of the return wheel is directly transmitted to the support beam. And the vibration of the return wheel propagates to the building where the hoistway is installed through a member such as a guide rail of an elevator provided in the hoistway and connected to the support beam.
[0003]
As a result, noise is generated in the room of the building formed near the hoistway due to the vibration of the return wheel propagated to the building. In order to prevent the occurrence of noise in such living rooms, etc., an elevator return wheel that has been conventionally provided with an anti-vibration rubber interposed between the attachment part of the return wheel and the support girder so that the vibration of the return wheel is not propagated to the building. A device is provided.
[0004]
[Problems to be solved by the invention]
In the conventional return gear device for an elevator as described above, the anti-vibration rubber is often disposed in a narrow space, and in this case, it is necessary to make the anti-vibration rubber as small as possible. For this reason, it has been difficult to design the vibration isolating rubber within the allowable surface pressure, or the design of the anti-vibration rubber has been increased so that the required vibration damping action cannot be obtained. .
[0005]
In addition, the vibration-damping rubber deteriorates due to the scattering of lubricating oil from the main rope of the elevator, the vibration-damping action is reduced due to the influence of the usage environment such as damage to the vibration-proof rubber, and the return wheel is supported by multiple vibration-proof rubbers. In some cases, the required vibration damping action cannot be achieved due to load imbalance in each anti-vibration rubber.
[0006]
The present invention has been made to solve such a problem, and an object thereof is to provide an elevator return wheel device that can be installed in a narrow space and can easily obtain a required vibration damping action.
[0007]
[Means for Solving the Problems]
In the return gear device for an elevator according to the present invention, the return wheel, in which the main rope of the elevator is wound and disposed in the elevator hoistway , and the hoistway that is erected in parallel with the elevator hoistway apart from each other A guide rail supported on the side wall of the guide rail, a support girder installed between the upper ends of the guide rail and fixed in the hoistway so as to face the return wheel, and is made of steel and has a beam shape and has a long length. An elastic support material arranged in parallel with the support beam, and a steel plate , arranged on the lower surface of both ends of the longitudinal end of the elastic support material, interposed between the support beam and the elastic support material, and fixed, and the length between the two An interval piece that forms a gap in the middle, and one side is fixed to the anti-supporting girder side in the middle of the longitudinal length of the elastic support material, and the return wheel shaft is attached to the other side so that it is away from the elastic support material. Steel plate mount to hold the shaft It is those with a.
[0008]
Moreover, in the return gear device for an elevator according to the present invention, the spacing piece made of a steel plate is narrower than the width dimension of the elastic support material and smaller than the area of the surface of the elastic support material facing the support beam. It was supposed to be formed.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
1 to 4 are diagrams showing an example of an embodiment of the present invention. FIG. 1 is a longitudinal sectional view conceptually showing a main part of a hoistway of an elevator. FIG. 2 is an enlarged view of a main part of FIG. 3 is a plan view of FIG. 2, and FIG. 4 is a side view of the return wheel portion of FIG. In the figure, reference numeral 1 is an elevator hoistway, and 2 is a guide rail that is erected parallel to the hoistway 1 and is supported on the side wall of the hoistway 1 by a bracket 3.
[0010]
4 is a support girder constructed between the upper ends of the guide rails 2 on both sides and fixed in the hoistway 1, 5 is made of steel and formed in a beam shape, and its longitudinal length is arranged parallel to the support girder 4. elastic supporting member, 6 is a distance piece made of steel plate, the longitudinal middle between the two fixed is interposed between each disposed in both the support beam 4 and the elastic supporting member 5 in the longitudinal ends of the elastic supporting member 5 Voids are formed in Reference numeral 7 denotes a mounting base fixed to the anti-supporting girder 4 side in the middle of the elastic support member 5, and 8 denotes a return wheel. The shaft 9 is mounted on the anti-elastic support member 5 side of the mounting base 7, and the illustration is omitted. There is a main rope of the elevator.
[0011]
In the elevator return device configured as described above, the return wheel 8 is mounted on the elastic support member 5, and the elastic support member 5 is fixed to the support girder 4 by a gap piece 6. . Thus, the return wheel 8 is elastically supported with respect to the support beam 4 via the elastic support member 5. In addition, since the spacing piece 6 having a smaller area than the area of the opposed surfaces of the support beam 4 and the elastic support material 5 is interposed between the support beam 4 and the elastic support material 5, the contact area in the middle of the vibration propagation path is changed and the friction is changed. Since loss occurs, vibration transmission can be reduced.
[0012]
Further, without disposing the anti Fugo beam With the above construction, diverting pulleys 8 is elastically supported by the steel-made member. For this reason, the return wheel apparatus for elevators can be manufactured at low cost. In addition, the durability is high, and it is possible to omit the adjustment and maintenance work after installation, thereby reducing the maintenance cost. Furthermore, the return wheel 8 can be elastically supported easily in a narrow space, and a required vibration damping action can be easily obtained. For this reason, the noise generated by the vibration of the return wheel 8 propagating to the room of the building formed near the hoistway 1 can be reduced, and the room of the building can be made quiet.
[0013]
Further, since no use anti Fugo beam, a decrease in vibration damping effect generated by scattering of the lubricating oil such as an elevator main rope deterioration of anti Fugo beam, due to the effect by the use environment such as the damage-proof Fugo arm, also it is possible to solve the problem that the required vibration damping for imbalance such loads definitive in each explosion Fugo beam is no longer achieved when supporting a plurality of anti Fugo beam to thus diverting pulley 4.
[0014]
Embodiment 2. FIG.
5 to 7 are diagrams showing an example of another embodiment of the present invention. FIG. 5 is a view corresponding to FIG. 2, FIG. 6 is a plan view of FIG. 5, and FIG. FIG. In the figure, the same reference numerals as those in FIGS. 1 to 4 indicate the corresponding parts, and 10 is a spacing piece made of a steel plate, which is narrower than the width dimension of the elastic support member 5 and has a support beam 4 of the elastic support member 5. Is formed in an area smaller than the area on the opposite surface of the elastic support member 5 and is disposed at both longitudinal ends of the elastic support member 5 so as to be interposed and fixed between the support beam 4 and the elastic support member 5. Form.
[0015]
In the elevator return device configured as described above, the return wheel 8 is mounted on the elastic support member 5, and the elastic support member 5 is provided with a gap with respect to the support beam 4 by the spacing piece 10. . Therefore, although the detailed description is omitted, the same operation as the embodiment of FIGS. 1 to 4 can be obtained also in the embodiment of FIGS.
[0016]
Further, a spacing piece 10 having a smaller area than the spacing piece 6 is interposed between the support beam 4 and the elastic support material 5 as compared with the area of the opposing surfaces of both. As a result, the contact area in the middle of the vibration propagation path changes abruptly and a friction loss occurs, so that vibration transmission can be reduced more effectively.
[0017]
Embodiment 3 FIG.
8 to 10 are also diagrams showing an example of another embodiment of the present invention. FIG. 8 is a view corresponding to FIG. 2, FIG. 9 is a plan view of FIG. 8, and FIG. FIG. In the figure, the same reference numerals as FIGS. 1 to 4 described above represents a substantial portion, 11 is a mounting base made of steel plate, is fixed to the counter-support beam 4 side in the longitudinal middle of the elastic supporting member 5 from the elastic supporting member 5 The shaft 9 of the return wheel 8 is supported at a distant position, that is, a position away from the support beam 4 by a distance W shown in FIG.
[0018]
In the elevator return device configured as described above, the return wheel 8 is mounted on the elastic support member 5, and the elastic support member 5 is provided with a gap with respect to the support beam 4 by the spacing piece 6. . Therefore, although the detailed description is omitted, the same operation as the embodiment of FIGS. 1 to 4 can be obtained also in the embodiment of FIGS.
[0019]
Further, the return wheel 8 is arranged at a position away from the support beam 4 by a distance W shown in FIG. As a result, the vibration in the direction along the facing surface between the support beam 4 and the elastic support material 5 generated in the return wheel 8 is transmitted from the shaft 9 to the mounting base 11, so that the mounting base 11 itself vibrates. Release energy. For this reason, in addition to the vibration-absorbing action by the elastic support member 5, vibration propagation in the direction along the opposing surfaces can be reduced, and vibration transmission can be reduced more effectively.
[0020]
Embodiment 4 FIG.
11 to 13 are also diagrams showing an example of another embodiment of the present invention. FIG. 11 is a view corresponding to FIG. 5, FIG. 12 is a plan view of FIG. 11, and FIG. FIG. In the figure, the same reference numerals as FIGS. 5 to 7 described above shows a substantial portion, 11 is a mounting base made of steel plate, is fixed to the counter-support beam 4 side in the longitudinal middle of the elastic supporting member 5 from the elastic supporting member 5 The shaft 9 of the return wheel 8 is supported at a distant position, that is, a position away from the support beam 4 by a distance W shown in FIG.
[0021]
In the elevator return device configured as described above, the return wheel 8 is mounted on the elastic support member 5, and the elastic support member 5 is provided with a gap with respect to the support beam 4 by the spacing piece 10. . Therefore, although the detailed description is omitted, the same operation as the embodiment of FIGS. 5 to 7 can be obtained also in the embodiment of FIGS.
[0022]
Further, the return wheel 8 is arranged at a position away from the support beam 4 by a distance W shown in FIG. As a result, the vibration in the direction along the facing surface between the support beam 4 and the elastic support material 5 generated in the return wheel 8 is transmitted from the shaft 9 to the mounting base 11, so that the mounting base 11 itself vibrates. Release energy. For this reason, in addition to the vibration absorbing action by the elastic support member 5, the vibration propagation in the direction of the opposing surfaces can be reduced, and the vibration transmission can be reduced more effectively.
[0023]
【The invention's effect】
As described above, the present invention is such that the main wheel of the elevator is wrapped around the return wheel disposed in the elevator hoistway , and the elevator hoistway is erected in parallel with each other on the side wall of the hoistway. A supported guide rail, a support girder installed between the upper ends of the guide rail , fixed in the hoistway and facing the return wheel, and a beam made of steel and having a longitudinal length as a support girder parallel-arranged elastic support, the longitudinal middle gap therebetween are fixedly interposed between both the support beam and the elastic supporting member is arranged in the longitudinal opposite ends lower surface of the elastic supporting member made of a steel plate The one side is fixed to the anti-supporting girder side in the middle of the elastic support material, and the return wheel shaft is mounted on the other side to hold the return wheel shaft away from the elastic support material. it is obtained by a mount made of steel plates
[0024]
With such a configuration, the return wheel is elastically supported by the elastic support material with respect to the support beam, and a space piece having a smaller area than the area of the opposing surface of both is interposed between the support beam and the elastic support material. By doing so, the contact area in the middle of the vibration propagation path changes, and furthermore, friction loss occurs, so that vibration transmission can be reduced. Further, the return wheel is elastically supported by the steel member without arranging the anti-vibration rubber. For this reason, the elevator return gear device can be manufactured at low cost, and the durability and high post-installation adjustment and maintenance can be saved, thereby reducing the maintenance cost. Furthermore, the return wheel can be elastically supported easily in a narrow space, and the required vibration damping action can be obtained, and the vibration of the return wheel propagates to the room of the building formed near the hoistway. Noise generated can be reduced, and there is an effect of quieting the room of the building.
Further, the return wheel is arranged at a position away from the elastic support member by the mounting base. As a result, the vibration in the direction along the facing surface between the support beam and the elastic support material generated in the return wheel is transmitted from the shaft of the return wheel to the mount, so that the mount itself vibrates and releases energy. To do. For this reason, in addition to the vibration-absorbing action by the elastic support material, vibration propagation in the direction along the opposing surfaces of both can be reduced, and there is an effect of further reducing vibration transmission.
[0025]
Further, as described above, in the present invention, the spacing piece made of a steel plate is formed in an area that is narrower than the width dimension of the elastic support material and smaller than the area of the surface of the elastic support material facing the support beam. It is what was meant.
[0026]
With such a configuration, the return wheel is elastically supported with respect to the support beam by the elastic support material, and the area of the elastic support material is smaller between the support beam and the elastic support material than the area of the opposing surface of both. Spacing pieces that are narrower than the width are present. As a result, the contact area in the middle of the vibration propagation path changes abruptly and a friction loss occurs, so that vibration transmission can be reduced more effectively. Further, the return wheel is elastically supported by the steel member without arranging the anti-vibration rubber. For this reason, the elevator return gear device can be manufactured at low cost, and the durability and high post-installation adjustment and maintenance can be saved, thereby reducing the maintenance cost. Furthermore, the return wheel can be elastically supported in a narrow space, and the required vibration damping action can be obtained, and the vibration of the return wheel propagates to the room of the building formed near the hoistway. Noise generated can be reduced, and there is an effect of quieting the room of the building.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view conceptually showing a main part of a hoistway of an elevator according to a first embodiment of the present invention.
FIG. 2 is an enlarged view of a main part of FIG.
FIG. 3 is a plan view of FIG. 2;
4 is a side view of the return wheel portion of FIG. 2. FIG.
FIG. 5 is a diagram showing a second embodiment of the present invention and corresponding to FIG. 2 described above.
6 is a plan view of FIG. 5. FIG.
7 is a side view of the return wheel portion of FIG. 5. FIG.
FIG. 8 is a diagram showing a third embodiment of the present invention and corresponding to FIG. 2 described above.
9 is a plan view of FIG. 8. FIG.
10 is a side view of the return wheel portion of FIG. 8. FIG.
FIG. 11 is a diagram showing a fourth embodiment of the present invention and corresponding to FIG. 5 described above.
12 is a plan view of FIG. 11. FIG.
13 is a side view of the return wheel portion of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hoistway, 4 Supporting girder, 5 Elastic support material, 6 Spacing piece, 8 Return wheel, 9 axis | shaft, 10 Spacing piece, 11 Mounting stand.

Claims

A return wheel on which the main rope of the elevator is wound and disposed in the elevator hoistway, a guide rail that is erected parallel to the elevator hoistway and supported on the side wall of the hoistway, and A support girder installed between the upper ends of the guide rails , fixed in the hoistway and facing the return wheel, and made of a steel material in the form of a beam, with its length parallel to the support girder. the elastic supporting member, a gap in the longitudinal midway between longitudinal ends lower surface are disposed respectively fixed being interposed between both the support beam and the elastic supporting member above both of the elastic supporting member made of a steel plate The spacing piece to be formed and one side is fixed to the anti-supporting girder side in the middle of the length of the elastic support material, and the shaft of the return wheel is attached to the other side so that the return wheel is separated from the elastic support material. steel plate and mount for holding the shaft Elevator for the return pulley device characterized by comprising.

The spacing piece made of a steel plate is formed in an area that is narrower than the width dimension of the elastic support material and smaller than the area of the surface of the elastic support material facing the support beam. Item 1. An elevator return wheel device according to item 1.