JP2011051667A - Spring shock absorber for elevator - Google Patents

Spring shock absorber for elevator Download PDF

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JP2011051667A
JP2011051667A JP2009199534A JP2009199534A JP2011051667A JP 2011051667 A JP2011051667 A JP 2011051667A JP 2009199534 A JP2009199534 A JP 2009199534A JP 2009199534 A JP2009199534 A JP 2009199534A JP 2011051667 A JP2011051667 A JP 2011051667A
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shock absorber
spring
coil spring
cylindrical coil
elevator
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JP5473489B2 (en
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Takeya Okawa
剛矢 大川
Yukiomi Mizuno
幸臣 水野
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To obtain a spring shock absorber for an elevator in which spring characteristics of a cylindrical coil spring do not receive variations when installed. <P>SOLUTION: The spring shock absorber for the elevator is disposed on the bottom surface of a hoistway of the elevator, and alleviates a shock by compressing the cylindrical coil spring (2) immediately before a car or weight collides with the bottom surface. The spring shock absorber includes a cylindrical guide pipe (3) for fitting the cylindrical coil spring therein, and preventing the horizontal movement of the cylindrical coil spring. The spring shock absorber also includes a mechanism (9) for holding the cylindrical coil spring at the guide pipe. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

この発明は、異常時に昇降体が昇降路の底面に衝突する衝撃を緩和するエレベータのバネ緩衝器に関するものである。   The present invention relates to a spring shock absorber for an elevator that alleviates the impact of a lifting body colliding with the bottom surface of a hoistway when an abnormality occurs.

ばね緩衝器は、昇降路を昇降するエレベータのかごからなる昇降体の底面と対向し、エレベータの昇降路の底面に立設されており、円筒圧縮コイルばねからなっている。ばね緩衝器のバネはパイプの台に溶接され、そのパイプの台が緩衝器取付け板に溶接され、その緩衝器取付け板がボルトで昇降路の底面に止められている（例えば、特許文献１参照）。   The spring shock absorber is opposed to the bottom surface of the elevator body composed of an elevator car that ascends and descends the hoistway, is erected on the bottom surface of the elevator hoistway, and includes a cylindrical compression coil spring. The spring of the spring shock absorber is welded to the base of the pipe, the base of the pipe is welded to the shock absorber mounting plate, and the shock absorber mounting plate is fixed to the bottom surface of the hoistway with a bolt (for example, see Patent Document 1). ).

そして、通常状態において要時に昇降路に設けられた最下階の乗場に停止する。この状態では、昇降体とばね緩衝器の上端の間に空隙が形成されて、昇降体によってばね緩衝器が圧縮されることはない。しかし、何らかの異常発生によって昇降体が最下階の乗場に対応した所定位置を越えて下降した場合には、昇降体の下面がばね緩衝器に衝突する。これによってばね緩衝器が圧縮され、昇降体の運転エネルギー及び位置エネルギーがばね緩衝器の圧縮エネルギーに変換され、衝突時の衝撃が緩衝されて昇降体が停止するようになっている。   And it stops at the landing on the lowest floor provided in the hoistway when necessary in the normal state. In this state, a gap is formed between the lifting body and the upper end of the spring shock absorber, and the spring shock absorber is not compressed by the lifting body. However, when the lifting body descends beyond a predetermined position corresponding to the landing on the lowest floor due to some abnormality, the lower surface of the lifting body collides with the spring shock absorber. As a result, the spring shock absorber is compressed, the operating energy and potential energy of the lifting body are converted into the compression energy of the spring shock absorber, the shock at the time of collision is buffered, and the lifting body stops.

特開２０００−３０２３５３号公報JP 2000-302353 A

通常、ばね緩衝器には適用可能な荷重範囲（最小〜最大）が設定されている。一般的に適用荷重の最小値は衝突時の減速度のピークが大きくならないように設計する必要があり、また最大値はばね単体の強度を確認しながら設計する必要がある。しかしながら、ばねを溶接で台に取り付けるためバネ特性が変化し適用範囲が外れるといった問題がある。   Usually, an applicable load range (minimum to maximum) is set for the spring shock absorber. Generally, it is necessary to design the minimum value of the applied load so that the peak of deceleration at the time of collision does not become large, and it is necessary to design the maximum value while confirming the strength of the spring alone. However, since the spring is attached to the table by welding, there is a problem that the spring characteristic changes and the application range is out of range.

この発明は、上述のような課題を解決するためになされたものであり、取付ける際に円筒コイルバネのバネ特性が変動を受けることがないエレベータのバネ緩衝器を得ることを目的とする。   The present invention has been made in order to solve the above-described problems, and an object of the present invention is to obtain an elevator spring damper in which the spring characteristics of a cylindrical coil spring are not subjected to fluctuations when attached.

この発明に係るエレベータのバネ緩衝器は、エレベータの昇降路の底面に配置されるとともに上記底面にかごまたはおもりが衝突する直前に円筒コイルバネを圧縮することにより衝撃を緩和するバネ緩衝器において、上記円筒コイルバネを嵌め込まれるとともに上記円筒コイルバネの水平方向への移動を防止する円筒形のガイドパイプを有する。   An elevator spring shock absorber according to the present invention is a spring shock absorber that is disposed on a bottom surface of an elevator hoistway and that reduces a shock by compressing a cylindrical coil spring immediately before a car or a weight collides with the bottom surface. A cylindrical guide pipe is fitted to the cylindrical coil spring and prevents the cylindrical coil spring from moving in the horizontal direction.

この発明に係るエレベータのバネ緩衝器は、昇降路の底面に固定される緩衝器取付け板に台が固定され、その台にガイドパイプが固定され、そのガイドパイプに円筒コイルバネが嵌め込まれており、円筒コイルバネには溶接が施されず熱が加わらないので、バネ緩衝器を取付けるときに円筒コイルバネのバネ特性が変動を受けることがないという効果を奏する。   In the elevator spring shock absorber according to the present invention, the base is fixed to the shock absorber mounting plate fixed to the bottom surface of the hoistway, the guide pipe is fixed to the base, and the cylindrical coil spring is fitted into the guide pipe, Since the cylindrical coil spring is not welded and heat is not applied, there is an effect that the spring characteristics of the cylindrical coil spring are not affected when the spring shock absorber is attached.

この発明の実施の形態１に係るエレベータのバネ緩衝器の外形図である。BRIEF DESCRIPTION OF THE DRAWINGS It is an external view of the elevator spring buffer which concerns on Embodiment 1 of this invention. この発明の実施の形態１に係るエレベータのバネ緩衝器の別の例の外形図である。It is an external view of another example of the spring shock absorber of the elevator which concerns on Embodiment 1 of this invention. この発明の実施の形態２に係るエレベータのバネ緩衝器の外形図である。It is an external view of the spring shock absorber of the elevator which concerns on Embodiment 2 of this invention. この発明の実施の形態２に係る保持する機構の部分の拡大図である。It is an enlarged view of the part of the mechanism to hold | maintain based on Embodiment 2 of this invention. この発明の実施の形態２に係るエレベータのバネ緩衝器の別の例の外形図である。It is an external view of another example of the spring shock absorber of the elevator which concerns on Embodiment 2 of this invention.

以下、本発明のエレベータのバネ緩衝器の好適な実施の形態につき図面を用いて説明する。
実施の形態１．
図１は、この発明の実施の形態１に係るエレベータのバネ緩衝器の外形図である。なお、図１における（ａ）は正面図であり、（ｂ）は平面図である。
この発明の実施の形態１に係るエレベータのバネ緩衝器１は、エレベータのかごまたはおもりが衝突したときの衝撃を緩和する円筒コイルバネ２と、円筒コイルバネ２が外側面に嵌められたガイドパイプ３と、ガイドパイプ３が内側に挿入された台４と、台４が固定された緩衝器取付け板５と、を備える。
ガイドパイプ３は、有底の円筒であり、外径は円筒コイルバネ２の内径より僅かに大きく、円筒コイルバネ２をガイドパイプ３に嵌め込むと、円筒コイルバネ２が外側に広がってガイドパイプ３を押し付ける。
台４は、円筒であり、内径はガイドパイプ３の外径と同じか僅かに大きい。ガイドパイプ３は、台４に挿入され溶接されると、台４は後述のように昇降路の底面６に対して固定されているので、ガイドパイプ３の水平方向の動きが防止される。
また、台４は緩衝器取付け板５に溶接により固定される。
緩衝器取付け板５は、平板であり、平板の中央には台４が固定されている。また、周縁部にはボルト７が貫通する穴８が設けられ、緩衝器取付け板５がボルト７で昇降路の底面６に止められている。 Hereinafter, preferred embodiments of a spring shock absorber for an elevator according to the present invention will be described with reference to the drawings.
Embodiment 1 FIG.
1 is an external view of a spring shock absorber for an elevator according to Embodiment 1 of the present invention. 1A is a front view, and FIG. 1B is a plan view.
An elevator spring shock absorber 1 according to Embodiment 1 of the present invention includes a cylindrical coil spring 2 that alleviates an impact when an elevator car or a weight collides, and a guide pipe 3 in which the cylindrical coil spring 2 is fitted to the outer surface. The base 4 in which the guide pipe 3 is inserted is provided, and the shock absorber mounting plate 5 to which the base 4 is fixed.
The guide pipe 3 is a cylinder with a bottom, and the outer diameter is slightly larger than the inner diameter of the cylindrical coil spring 2. When the cylindrical coil spring 2 is fitted into the guide pipe 3, the cylindrical coil spring 2 spreads outward and presses the guide pipe 3. .
The table 4 is a cylinder, and the inner diameter is the same as or slightly larger than the outer diameter of the guide pipe 3. When the guide pipe 3 is inserted into the base 4 and welded, the base 4 is fixed to the bottom surface 6 of the hoistway as will be described later, so that the horizontal movement of the guide pipe 3 is prevented.
The stand 4 is fixed to the shock absorber mounting plate 5 by welding.
The shock absorber mounting plate 5 is a flat plate, and a base 4 is fixed to the center of the flat plate. Further, a hole 8 through which the bolt 7 passes is provided in the peripheral portion, and the shock absorber mounting plate 5 is fixed to the bottom surface 6 of the hoistway with the bolt 7.

次に、このバネ緩衝器１の作動について説明する。ここではかごに対応するバネ緩衝器１について説明するが、釣合いおもりに対しても同様である。
何らかの異常発生によってかごが最下階の乗場に対応した所定位置を越えて下降したとき、かごの底面が円筒コイルバネ２に衝突する。円筒コイルバネ２の底面は台４に当たっているので、表面から押されると円筒コイルバネ２は圧縮され、かごの運転エネルギー及び位置エネルギーが円筒コイルバネ２の圧縮エネルギーに変換され、衝突時の衝撃が緩衝されてかごが停止するようになっている。
なお、円筒コイルバネ２はガイドパイプ３に嵌め込まれているだけであるが、上述のように作動するときは円筒コイルバネ２はかごと台４に挟まれるので円筒コイルバネ２が外れることはない。 Next, the operation of the spring shock absorber 1 will be described. Although the spring shock absorber 1 corresponding to the car will be described here, the same applies to the counterweight.
When the car descends beyond a predetermined position corresponding to the landing on the lowest floor due to some abnormality, the bottom surface of the car collides with the cylindrical coil spring 2. Since the bottom surface of the cylindrical coil spring 2 is in contact with the base 4, the cylindrical coil spring 2 is compressed when pressed from the surface, and the operation energy and positional energy of the car are converted into the compression energy of the cylindrical coil spring 2, and the shock at the time of collision is buffered. The car is supposed to stop.
Although the cylindrical coil spring 2 is only fitted in the guide pipe 3, when it operates as described above, the cylindrical coil spring 2 is sandwiched between the car and the base 4, so that the cylindrical coil spring 2 does not come off.

この発明の実施の形態１に係るエレベータのバネ緩衝器１は、昇降路の底面６に固定される緩衝器取付け板５に台４が固定され、その台４にガイドパイプ３が固定され、そのガイドパイプ３に円筒コイルバネ２が嵌め込まれており、円筒コイルバネ２には溶接が施されず熱が加わらないので、円筒コイルバネ２のバネ特性がバネ緩衝器１を組み立てる際に変動受けることがない。
また、円筒コイルバネ２と台４とは別々に仕込むことができ、向け先毎に円筒コイルバネ２を嵌めて出荷でき生産に合理化が図れる。 In the elevator spring shock absorber 1 according to Embodiment 1 of the present invention, the base 4 is fixed to the shock absorber mounting plate 5 fixed to the bottom surface 6 of the hoistway, and the guide pipe 3 is fixed to the base 4. Since the cylindrical coil spring 2 is fitted in the guide pipe 3 and the cylindrical coil spring 2 is not welded and heat is not applied, the spring characteristics of the cylindrical coil spring 2 are not affected when the spring shock absorber 1 is assembled.
Moreover, the cylindrical coil spring 2 and the stand 4 can be charged separately, and the cylindrical coil spring 2 can be fitted and shipped for each destination, so that production can be rationalized.

なお、上述のガイドパイプ３は台４に挿入された後に溶接されて台４に固定されているが、図２に示すように、台４を省略してガイドパイプ３を緩衝器取付け板５に直接溶接して固定しても良い。このようにすることにより台４を省略でき、コストを低減することができる。   The above-described guide pipe 3 is welded and fixed to the base 4 after being inserted into the base 4, but the base 4 is omitted and the guide pipe 3 is attached to the shock absorber mounting plate 5 as shown in FIG. It may be fixed by direct welding. By doing in this way, the stand 4 can be omitted and the cost can be reduced.

実施の形態２．
図３は、この発明の実施の形態２に係るエレベータのバネ緩衝器の外形図である。図４は、クリップにより円筒コイルバネをガイドパイプに保持した部分の拡大図である。なお、図４における（ａ）は図３の保持する機構９ａ、（ｂ）は図３の保持する機構９ｂの拡大図である。
この発明の実施の形態２に係るエレベータのバネ緩衝器１Ｂは、この発明の実施の形態１に係るエレベータのバネ緩衝器１に円筒コイルバネ２をガイドパイプ３に保持する機構９ａ、９ｂを追加したことが異なり、それ以外は同様であるので、同様な部分に同じ符号を付記し説明は省略する。 Embodiment 2. FIG.
FIG. 3 is an external view of an elevator spring shock absorber according to Embodiment 2 of the present invention. FIG. 4 is an enlarged view of a portion where the cylindrical coil spring is held on the guide pipe by a clip. 4A is an enlarged view of the mechanism 9a held in FIG. 3, and FIG. 4B is an enlarged view of the mechanism 9b held in FIG.
In an elevator spring shock absorber 1B according to Embodiment 2 of the present invention, mechanisms 9a and 9b for holding the cylindrical coil spring 2 on the guide pipe 3 are added to the elevator spring shock absorber 1 according to Embodiment 1 of the present invention. However, the other parts are the same, and the same reference numerals are given to the same parts, and the description is omitted.

保持する機構９ａ、９ｂは、円筒コイルバネ２を爪により掴むクリップ１１と、クリップ１１に設けられた長穴１１ａを貫通しガイドパイプ３に設けられたネジ穴３ａにねじ込まれる押さえネジ１２と、を有する。
この保持する機構９ａ、９ｂは、次のようにして組み立てられる。ガイドパイプ３に円筒コイルバネ２を嵌め込み、次にクリップ１１の爪の部分を円筒コイルバネ２に引っ掛ける。それから、クリップの長穴１１ａとガイドパイプのネジ穴３ａとを位置合わせし、押さえネジ１２でクリップ１１をガイドパイプ３に締結する。このようにすることにより円筒コイルバネ２がガイドパイプ３から上方に抜けることを防止できる。 The holding mechanisms 9 a and 9 b include a clip 11 that grips the cylindrical coil spring 2 with a claw, and a holding screw 12 that passes through a long hole 11 a provided in the clip 11 and is screwed into a screw hole 3 a provided in the guide pipe 3. Have.
The holding mechanisms 9a and 9b are assembled as follows. The cylindrical coil spring 2 is fitted into the guide pipe 3, and then the claw portion of the clip 11 is hooked on the cylindrical coil spring 2. Then, the long hole 11 a of the clip and the screw hole 3 a of the guide pipe are aligned, and the clip 11 is fastened to the guide pipe 3 with the holding screw 12. By doing so, it is possible to prevent the cylindrical coil spring 2 from being pulled upward from the guide pipe 3.

この発明の実施の形態２に係るエレベータのバネ緩衝器１Ｂは、この発明の実施の形態１に係るエレベータのバネ緩衝器１と同様な効果を奏しますが、さらに保持する機構９ａ、９ｂが追加されているので、円筒コイルバネ２がガイドパイプ３からより抜け難いという効果を奏する。   The elevator spring shock absorber 1B according to the second embodiment of the present invention has the same effect as the elevator spring shock absorber 1 according to the first embodiment of the present invention, but additionally has holding mechanisms 9a and 9b. Therefore, there is an effect that the cylindrical coil spring 2 is more difficult to be removed from the guide pipe 3.

なお、上述のガイドパイプ３は台４に挿入された後に溶接されて台４に固定されているが、図５に示すように、台４を省略してガイドパイプ３を緩衝器取付け板５に直接溶接して固定しても良い。   The above-described guide pipe 3 is welded and fixed to the base 4 after being inserted into the base 4, but the base 4 is omitted and the guide pipe 3 is attached to the shock absorber mounting plate 5 as shown in FIG. It may be fixed by direct welding.

１、１Ｂ バネ緩衝器、２ 円筒コイルバネ、３ ガイドパイプ、３ａ ネジ穴、４ 台、５ 緩衝器取付け板、６ （昇降路の）底面、７ ボルト、８ （緩衝器取付け板）の穴、９ａ、９ｂ 保持する機構、１１ クリップ、１１ａ 長穴、１２ 押さえネジ。   1, 1B Spring shock absorber, 2 Cylindrical coil spring, 3 Guide pipe, 3a Screw hole, 4 units, 5 Shock absorber mounting plate, 6 Bottom of hoistway, 7 Bolt, 8 Hole of shock absorber mounting plate, 9a 9b Holding mechanism, 11 clip, 11a oblong hole, 12 holding screw.

Claims (2)

エレベータの昇降路の底面に配置されるとともに上記底面にかごまたはおもりが衝突する直前に円筒コイルバネを圧縮することにより衝撃を緩和するバネ緩衝器において、
上記円筒コイルバネを嵌め込まれるとともに上記円筒コイルバネの水平方向への移動を防止する円筒形のガイドパイプを有することを特徴とするエレベータのバネ緩衝器。 In a spring shock absorber disposed on the bottom surface of the elevator hoistway and relieving shock by compressing the cylindrical coil spring immediately before the car or weight collides with the bottom surface,
An elevator spring shock absorber comprising a cylindrical guide pipe into which the cylindrical coil spring is fitted and which prevents the cylindrical coil spring from moving in the horizontal direction. 上記円筒コイルバネを上記ガイドパイプに保持する機構を有することを特徴とする請求項１に記載のエレベータのバネ緩衝器。   The elevator spring shock absorber according to claim 1, further comprising a mechanism for holding the cylindrical coil spring on the guide pipe.
JP2009199534A 2009-08-31 2009-08-31 Elevator spring shock absorber Expired - Fee Related JP5473489B2 (en)

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WO2020194573A1 (en) * 2019-03-27 2020-10-01 三菱電機株式会社 Spring buffer for elevator
WO2020194590A1 (en) * 2019-03-27 2020-10-01 三菱電機株式会社 Shock absorber spring support and elevator shock absorber
CN113602809A (en) * 2021-08-13 2021-11-05 博众精工科技股份有限公司 Highly self-adaptive assembly

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Publication number Priority date Publication date Assignee Title
WO2020194573A1 (en) * 2019-03-27 2020-10-01 三菱電機株式会社 Spring buffer for elevator
WO2020194590A1 (en) * 2019-03-27 2020-10-01 三菱電機株式会社 Shock absorber spring support and elevator shock absorber
JPWO2020194573A1 (en) * 2019-03-27 2021-10-14 三菱電機株式会社 Elevator spring shock absorber
JPWO2020194590A1 (en) * 2019-03-27 2021-10-14 三菱電機株式会社 Spring support for shock absorbers and elevator shock absorbers
CN113574002A (en) * 2019-03-27 2021-10-29 三菱电机株式会社 Spring support table of buffer and elevator buffer
JP7134335B2 (en) 2019-03-27 2022-09-09 三菱電機株式会社 Shock absorber spring supports and elevator shock absorbers
CN113602809A (en) * 2021-08-13 2021-11-05 博众精工科技股份有限公司 Highly self-adaptive assembly

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