JPH01122888A - Vibration absorber for elevator - Google Patents
Vibration absorber for elevatorInfo
- Publication number
- JPH01122888A JPH01122888A JP62277931A JP27793187A JPH01122888A JP H01122888 A JPH01122888 A JP H01122888A JP 62277931 A JP62277931 A JP 62277931A JP 27793187 A JP27793187 A JP 27793187A JP H01122888 A JPH01122888 A JP H01122888A
- Authority
- JP
- Japan
- Prior art keywords
- vibration absorber
- rubber
- dynamic vibration
- spring constant
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 34
- 229920001971 elastomer Polymers 0.000 claims abstract description 30
- 239000005060 rubber Substances 0.000 claims abstract description 30
- 239000000725 suspension Substances 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、エレベータの吸振装置に係り、特に、反作用
が少なくかつ吸振周波数の調整が容易な動吸振器に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a vibration absorbing device for an elevator, and particularly to a dynamic vibration absorber with little reaction and whose vibration absorption frequency can be easily adjusted.
従来、特公昭４７−５１６２５号に記載のように、エレ
ベータの吸振装置として、シャックルソケットもしくは
吊り車枠部分におもりと弾性体とからなる動吸振器を取
付けることが考案され、また、実公昭４９−２２１０２
号に記載のように、前記動吸振器の弾性体に板ばねを使
用し、その仮ばねに取付けるおもりの位置を変えること
により、板ばねのばね定数を変化させ吸振周波数を調整
容易とする構造が考案されている。Conventionally, as described in Japanese Patent Publication No. 47-51625, it has been devised as a vibration absorbing device for an elevator to attach a dynamic vibration absorber consisting of a weight and an elastic body to the shackle socket or suspension wheel frame. 22102
As described in the above issue, a structure in which a leaf spring is used as the elastic body of the dynamic vibration absorber, and by changing the position of a weight attached to the temporary spring, the spring constant of the leaf spring is changed and the vibration absorption frequency is easily adjusted. has been devised.
しかし、前記動吸振器の設置により、新たに。However, with the installation of the dynamic vibration absorber, new
目的とする吸振周波数の上下に２つの共振周波数が誘起
され、この新たな共振周波数と、駆動装置の加振周波数
が一致した場合、例えば加減速時等には、動吸振器取付
けによる反作用が生じ乗心地に悪影響を及ぼすことにな
るため、この影響を減らすべく、前記動吸振器の弾性体
に内部減衰の大きなゴムを使用することが、特開昭６１
−１２５８２号により考案されている。Two resonance frequencies are induced above and below the target vibration absorption frequency, and if these new resonance frequencies match the excitation frequency of the drive device, a reaction will occur due to the installation of the dynamic vibration reducer, for example during acceleration or deceleration. This will have a negative effect on riding comfort, so in order to reduce this effect, it is recommended to use rubber with large internal damping for the elastic body of the dynamic vibration absorber, as disclosed in Japanese Patent Laid-Open No. 61
-12582.
しかしながら、上記の実公昭４９−２２１０２号記載の
ものにおいては、吸振周波数の調整が容易ではあるが、
動吸振器の弾性体として、内部減衰の非常に小さい金属
を使用しているため、動吸振器設置により新たに誘起さ
れる共振周波数により生じる反作用が大きいという問題
があった。However, in the above-mentioned Utility Model Publication No. 49-22102, although it is easy to adjust the vibration absorption frequency,
Since a metal with very low internal damping is used as the elastic body of the dynamic vibration absorber, there is a problem in that the reaction generated by the newly induced resonance frequency when the dynamic vibration absorber is installed is large.
一方、上記の特開昭６１−１２５８２号記載のものは、
動吸振器の弾性体として、内部減衰の大きいゴムを使用
しているので動吸振器設置による反作用は小さいが、ゴ
ムのばね定数が一定のため、吸振周波数を調整するため
には、動吸振器のおもりの重量を変化させねばならず、
そのために吸振周波数の微調整や据付現場における調整
が困難であるという問題があった。また、おもりの重量
を変化させることは、動吸振器に要求されるおもりの適
正重量を維持できないか、もしくは過大となってしまう
という問題もあった。On the other hand, the one described in JP-A-61-12582 mentioned above is
Since rubber with large internal damping is used as the elastic body of the dynamic vibration absorber, the reaction effect due to the installation of the dynamic vibration absorber is small, but since the spring constant of the rubber is constant, in order to adjust the vibration absorption frequency, it is necessary to The weight of the weight must be changed,
Therefore, there was a problem in that fine adjustment of the vibration absorption frequency and adjustment at the installation site were difficult. In addition, changing the weight of the weight has the problem that the proper weight of the weight required for the dynamic vibration absorber cannot be maintained, or the weight becomes too large.
本発明の目的は、上記問題点を解消するためになされた
もので、吸振周波数の調整が容易で、かつ弾性体にゴム
を用いた反作用め少ない動吸振器を提供することにある
。SUMMARY OF THE INVENTION An object of the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a dynamic vibration absorber in which the vibration absorption frequency can be easily adjusted, and in which the elastic body is made of rubber and there is less reaction force.
上記の目的を達成するために本発明のエレベータの吸振
装置は、ロープにより懸垂・駆動するロープ式エレベー
タの乗かごを、該ロープ端のシャックルソケット部又は
該ロープを介して吊られる吊り車を保持する吊り車枠部
に第１の弾性体を介して連結させ、該シャックルソケッ
ト部又は吊り車枠部に第２の弾性体とおもりとからなる
動吸振器が設置され、該第２の弾性体としてゴムを使用
するエレベータの吸振装置において、前記動吸振器を水
平軸に対して回転可能な取付は構造とし、前記ゴムの鉛
直方向のばね定数が連続的に変化することを特徴とする
ものである。In order to achieve the above object, the elevator vibration absorbing device of the present invention holds a rope-type elevator car suspended and driven by a rope, and a shackle socket at the end of the rope or a suspension wheel suspended via the rope. A dynamic vibration absorber consisting of a second elastic body and a weight is installed on the shackle socket or the suspension wheel frame through a first elastic body, and the second elastic body is made of rubber. In the vibration absorbing device for an elevator using the dynamic vibration absorber, the structure is such that the dynamic vibration absorber is rotatable about a horizontal axis, and the spring constant of the rubber in the vertical direction changes continuously.
上記の構成によると、動吸振器の弾性体として用いるゴ
ムの取付角度が連続的に可変となる。According to the above configuration, the mounting angle of the rubber used as the elastic body of the dynamic vibration absorber becomes continuously variable.
ゴム単体における鉛直方向ばね定数Ｋｌ 、および水平
方向ばね定数Ｋｚは一定であるが、このゴムの取付は角
度を変化させることにより、実際の鉛直方向の合成ばね
定数ＫＴは、取付は角度をθとすると、
Ｋ ｒ ： Ｋ ｔ ｃｏｓ２θ＋Ｋｚｓｉｎ”０とな
り、Ｋ２からＫｌの間で連続的に可変となる。The vertical spring constant Kl and horizontal spring constant Kz of the rubber alone are constant, but by changing the angle when installing this rubber, the actual composite spring constant KT in the vertical direction can be changed by changing the installation angle to θ. Then, K r : K t cos2θ+Kzsin”0, which is continuously variable between K2 and Kl.
一般にゴムの水平方向ばね定数と、鉛直方向ばね定数と
の差が大きければ、ゴムの取付は角度を変化させること
で、沿直方向の合成ばね定数ＫＴは広範囲にわたり連続
的に変化可能となり、したがって動吸振器の吸振周波数
もおもりの重量を変えずに連続的に広範囲に変化可能と
なる。In general, if the difference between the horizontal spring constant and the vertical spring constant of the rubber is large, the composite spring constant KT in the vertical direction can be varied continuously over a wide range by changing the angle at which the rubber is attached. The vibration absorption frequency of the dynamic vibration reducer can also be changed continuously over a wide range without changing the weight of the weight.
以下、本発明の一実施例を図面により説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第３図において、乗かと１は、ロープ２端のシャックル
ソケット部３に第１の弾性体４を介して連結され、この
シャックルソケット部：３に、取付は板５を介して、動
吸振器６が取付けられている。In FIG. 3, the rider 1 is connected to a shackle socket 3 at the end of the rope 2 via a first elastic body 4, and a dynamic vibration absorber is attached to this shackle socket 3 via a plate 5. 6 is installed.
動吸振器６は、第１図および第２図に示すように、おも
り７の両側面をゴム８で保持した構造とし、かつ取付は
ブラケット９および取付はボルト１０により取付は板５
に水平軸に対し回転可能な構造で取付けられている６本
実施例においては、このゴム８の水平方向ばね定数が鉛
直方向ばね定数に比べかなり小さくなっている。As shown in FIGS. 1 and 2, the dynamic vibration absorber 6 has a structure in which both sides of a weight 7 are held by rubber 8, and is attached to a plate 5 using a bracket 9 and bolts 10.
In this embodiment, the rubber 8 has a horizontal spring constant that is considerably smaller than its vertical spring constant.
本実施例によれば、第４図〜第６図に示したように、動
吸振器６の取付は角度θを変化させることによりゴムの
鉛直方向合成ばね定数が変化し、したがって、第７図に
示すように、吸振周波数がｆｎｌからｆｎｚまで連続的
に変化するため、吸振周波数の調整が容易になるという
効果がある。According to this embodiment, as shown in FIGS. 4 to 6, when the dynamic vibration absorber 6 is mounted, the vertical composite spring constant of the rubber changes by changing the angle θ, and therefore, as shown in FIG. As shown in the figure, since the vibration absorption frequency changes continuously from fnl to fnz, there is an effect that adjustment of the vibration absorption frequency becomes easy.
第８図および第９図は、第２の実施例を示すもので、筒
形のゴム８を用い、このゴムをおもり７および内筒１１
に接着取付けしたものをボルト１２によって、取付はブ
ラケット９に取付ける構造である。8 and 9 show a second embodiment, in which a cylindrical rubber 8 is used, and this rubber is attached to a weight 7 and an inner cylinder 11.
The structure is such that it is attached to the bracket 9 using bolts 12.
本実施例においても、取付ケブラケット９および取付は
ボルト１０により動吸振器６の取付は角度を変化させる
ことで、第１の実施例と同様の効果が得られる。In this embodiment as well, the same effects as in the first embodiment can be obtained by changing the mounting angle of the dynamic vibration absorber 6 using the mounting bracket 9 and the bolts 10.
なお、これらの実施例においては、１：１０−ピングの
エレベータのロープ端のシャックルソケット部に動吸振
器を取付ける構造を示しているが、２：１０−ピングエ
レベータのように吊り車およびその吊り車を保持する吊
り車枠を有するものにおいて、その吊り車枠部に上記実
施例と同じ構造の動吸振器を取り付けても同様の効果が
あることは明らかである。In addition, in these examples, a structure is shown in which a dynamic vibration absorber is attached to the shackle socket at the end of the rope of a 1:10-ping elevator, but a suspension wheel and its suspension are attached as in a 2:10-ping elevator. It is clear that in a vehicle having a suspension wheel frame for holding a car, the same effect can be obtained even if a dynamic vibration absorber having the same structure as in the above embodiment is attached to the suspension wheel frame.
上述のとおり本発明によれば、ゴムを用いた動吸振器を
水平軸に対して回転可能な取付は構造とし、ゴムの鉛直
方向のばね定数を連続的に変化させることができるので
、おもりの重量を変化させることなく吸振周波数の調整
が可能であり、そのために、動吸振器設置により生じる
反作用が少なくかつ吸振周波数の調整が容易なエレベー
タの吸振装置が得られる。As described above, according to the present invention, the dynamic vibration absorber using rubber is mounted so that it can rotate about the horizontal axis, and the spring constant of the rubber in the vertical direction can be changed continuously, so that the weight A vibration absorbing device for an elevator can be obtained in which the vibration absorption frequency can be adjusted without changing the weight, and therefore the reaction caused by installing the dynamic vibration absorber is small and the vibration absorption frequency can be easily adjusted.
第１図は本実施例の動吸振器の上面図、第２図は第１図
のＡ矢視図、第３図は本実施例を取付けた乗かご部分の
正面図、第４図ないし第６図は本実施例の動吸振器の取
付は角度の変化を示す側面図、第７図は本実施例の動吸
振器の取付は角度の変化による吸振周波数の変化を示す
グラフ、第８図は第２の実施例の動吸振器の上面図、第
９図は第８図のＢ矢視図である。
１・・・乗かご、２・・・ロープ、３・・・シャックル
ソケット、４・・・第１の弾性体、５・・・取付は板、
６・・・動吸振器、７・・・おもり、８・・・ゴム、９
・・・取付はブラケット、１０・・・取付はボルト。Fig. 1 is a top view of the dynamic vibration reducer of this embodiment, Fig. 2 is a view taken in the direction of arrow A in Fig. 1, Fig. 3 is a front view of the passenger car portion to which this embodiment is attached, and Figs. Figure 6 is a side view showing changes in angle when the dynamic vibration absorber is installed in this example, Figure 7 is a graph showing changes in vibration absorption frequency due to changes in angle when the dynamic vibration absorber is installed in this example, and Figure 8 9 is a top view of the dynamic vibration reducer of the second embodiment, and FIG. 9 is a view taken along arrow B in FIG. DESCRIPTION OF SYMBOLS 1... Passenger car, 2... Rope, 3... Shackle socket, 4... First elastic body, 5... Mounting plate,
6...Dynamic vibration absorber, 7...Weight, 8...Rubber, 9
...Mounting with bracket, 10...Mounting with bolt.
Claims (1)
乗かごを、該ロープ端のシヤツクルソケツト部又は該ロ
ープを介して吊られる吊り車を保持する吊り車枠部に第
１の弾性体を介して連結させ、該シヤツクルソケツト部
又は吊り車枠部に第２の弾性体とおもりとからなる動吸
振器が設置され、該第２の弾性体としてゴムを使用する
エレベータの吸振装置において、前記動吸振器を水平軸
に対して回転可能な取付け構造とし、前記ゴムの鉛直方
向のばね定数が連続的に変化することを特徴とするエレ
ベータの吸振装置。 ２、前記動吸振器が、コ型ブラケットの一対のフランジ
の内面に配設された一対のゴムと、該一対のゴムに挟持
されたおもりとからなり、前記シヤツクルソケツト部又
は吊り車枠部に前記コ型ブラケットのウェブがボルトに
より該ボルト軸を水平にして取付けられ、該ボルト軸回
りに回転可能であることを特徴とする特許請求の範囲の
第１項に記載の吸振装置。[Claims] 1. A rope-type elevator car, which is suspended and driven by a rope, is attached to the shaft socket at the end of the rope or to the suspension wheel frame portion that holds the suspension wheel suspended via the rope. An elevator in which a dynamic vibration absorber consisting of a second elastic body and a weight is installed in the shaft socket portion or the suspension wheel frame portion through an elastic body, and in which rubber is used as the second elastic body. 1. A vibration absorbing device for an elevator, characterized in that the dynamic vibration absorber has a mounting structure rotatable about a horizontal axis, and the spring constant of the rubber in the vertical direction changes continuously. 2. The dynamic vibration absorber is composed of a pair of rubbers disposed on the inner surface of a pair of flanges of the U-shaped bracket, and a weight held between the pair of rubbers, and the dynamic vibration absorber includes a pair of rubbers disposed on the inner surface of a pair of flanges of the U-shaped bracket, and a weight held between the pair of rubbers, and 2. The vibration absorbing device according to claim 1, wherein the web of the U-shaped bracket is attached by a bolt with the bolt axis horizontal, and is rotatable about the bolt axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62277931A JPH01122888A (en) | 1987-11-02 | 1987-11-02 | Vibration absorber for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62277931A JPH01122888A (en) | 1987-11-02 | 1987-11-02 | Vibration absorber for elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01122888A true JPH01122888A (en) | 1989-05-16 |
Family
ID=17590276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62277931A Pending JPH01122888A (en) | 1987-11-02 | 1987-11-02 | Vibration absorber for elevator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01122888A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009190900A (en) * | 2008-01-16 | 2009-08-27 | Toshiba Elevator Co Ltd | Elevator provided with elevator vibration damping device |
-
1987
- 1987-11-02 JP JP62277931A patent/JPH01122888A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009190900A (en) * | 2008-01-16 | 2009-08-27 | Toshiba Elevator Co Ltd | Elevator provided with elevator vibration damping device |
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