JP5259379B2 - Elevator equipment - Google Patents

Elevator equipment Download PDF

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JP5259379B2
JP5259379B2 JP2008328418A JP2008328418A JP5259379B2 JP 5259379 B2 JP5259379 B2 JP 5259379B2 JP 2008328418 A JP2008328418 A JP 2008328418A JP 2008328418 A JP2008328418 A JP 2008328418A JP 5259379 B2 JP5259379 B2 JP 5259379B2
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counterweight
hole
inspection table
car
fixing
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JP2010149967A (en
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克典 西野
知文 萩谷
重幸 大菅
泰裕 金山
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Hitachi Ltd
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Hitachi Ltd
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Description

本発明は、建物の最下階フロアレベル付近に設置した機器を点検するための点検台を備えたエレベーター装置に関する。   The present invention relates to an elevator apparatus provided with an inspection table for inspecting equipment installed near the floor level of the lowest floor of a building.

建物の最下階フロアレベル付近に設置した機器を点検するための点検台を備えたエレベーター装置として、従来、つり合おもりに点検台を直接設けたものが提案されている（例えば、特許文献１参照）。また、つり合おもりを最下部に固定する機械的ストッパーと、エレベーターが通常走行時はかごの昇降域にない壁側の位置に格納された状態で昇降路壁に固定されるとともに、点検作業時はかごの昇降域に組立てられる点検台、および、前述の機械的ストッパーを差し込まないときは点検台を収納位置にロックする電気錠とを設け、点検作業時の安全を図るようにしたものが挙げられる（例えば、特許文献２参照）。
特開２００６−１７６３２４（段落番号００１５〜００１７、図１） 特開２００５−１７９０１５（段落番号００２８〜００５１、図１） As an elevator apparatus equipped with an inspection table for checking equipment installed near the floor level of the lowermost floor of a building, conventionally, an elevator device in which an inspection table is directly provided on a counterweight has been proposed (for example, Patent Document 1). reference). In addition, a mechanical stopper that fixes the counterweight to the bottom, and the elevator is fixed to the hoistway wall while being stored in a position on the wall side that is not in the car's hoisting zone during normal driving, and during inspection work There is an inspection table assembled in the elevator area of the car, and an electric lock that locks the inspection table in the storage position when the mechanical stopper is not inserted, to ensure safety during inspection work. (See, for example, Patent Document 2).
JP 2006-176324 A (paragraph numbers 0015 to 0017, FIG. 1) JP-A-2005-179015 (paragraph numbers 0028 to 0051, FIG. 1)

しかしながら、前述した特許文献１に示す従来のエレベーター装置では、点検中のかご、およびつり合おもりの固定については特に考慮されておらず、建物の最下階フロアレベル付近に巻上機を設け、点検台上からブレーキの調整作業を行った際に、かご、およびつり合おもりの重さが均等でないと、より重い方向に向けて動く恐れがあった。したがって、つり合おもりと同期して点検台が動いた際に、点検台上の保守作業者が挟まれたり、落下したりすることが懸念される。   However, in the conventional elevator apparatus shown in Patent Document 1 mentioned above, the car under inspection and the fixing of the counterweight are not particularly considered, and a hoisting machine is provided near the floor level of the lower floor of the building, When the brakes were adjusted from the inspection table, if the weights of the car and the counterweight were not equal, there was a risk of moving in a heavier direction. Therefore, when the inspection table moves in synchronization with the counterweight, there is a concern that a maintenance worker on the inspection table may be caught or dropped.

また、前述した特許文献２に示す従来のエレベーター装置では、つり合おもりを機械的ストッパーで固定しているため、つり合おもりが動くことはなく、安全性が確保されているといえる。しかし、点検台は機械的ストッパーを差し込まないと開錠しない電気錠によりその開閉が制限されている。すなわち、点検台とつり合おもりを固定する手段とは電気的に連動した構造となっている。このため、制御装置に電気錠用の電源を持たなければならず、建物の最下階フロアレベル付近に巻上機と制御盤の両方を設けた場合など、部品が増えて製造コストアップとなるとともに、複数のスイッチなどが必要となるため、保守点検する部品も増えるといった問題がある。さらに、電気錠への電源系統に異常があった場合は、つり合おもりに機械的ストッパーを差し込んでも電気錠が開錠できなくなり点検台が開かないため、制御装置を点検できないといった問題点もある。   Moreover, in the conventional elevator apparatus shown in patent document 2 mentioned above, since the counterweight is being fixed with the mechanical stopper, it can be said that the counterweight does not move and safety is ensured. However, opening and closing of the inspection table is restricted by an electric lock that cannot be unlocked unless a mechanical stopper is inserted. That is, the inspection table and the means for fixing the counterweight are electrically linked. For this reason, the control device must have a power source for the electric lock, and when both the hoisting machine and the control panel are provided near the floor level of the lower floor of the building, the number of parts increases and the manufacturing cost increases. In addition, since a plurality of switches are required, there is a problem that the number of parts to be inspected and increased increases. In addition, if there is an abnormality in the power system to the electric lock, even if a mechanical stopper is inserted into the counterweight, the electric lock cannot be unlocked and the inspection table cannot be opened, so that the control device cannot be inspected. .

本発明は、前述した従来技術における実状からなされたもので、その目的は、簡易な構造で、つり合おもりに点検台を設けたものにおいて保守作業者の安全を確保することのできるエレベーター装置を提供することにある。   The present invention is made from the actual situation in the above-described prior art, and an object of the present invention is to provide an elevator apparatus that can ensure the safety of a maintenance worker with a simple structure and an inspection table provided on a counterweight. It is to provide.

前記目的を達成するために、本発明の請求項１に係る発明は、昇降路内を昇降するかごと、このかごと主索を介して連結され、前記かごと反対方向に昇降するつり合おもりと、前記かごの昇降を案内するかご用ガイドレールと、前記つり合いおもりの昇降を案内するつり合いおもり用ガイドレールと、前記つり合おもりに収納可能に設けられる折りたたみ式の点検台と、前記つり合おもりを昇降路下部にて前記つり合いおもり用ガイドレールに対して固定する固定手段とを備えたエレベーター装置において、前記点検台と前記固定手段とを機械的に連動させ、前記固定手段により前記つり合おもりを固定した状態で初めて前記点検台の組立てを可能としたことを特徴としている。 In order to achieve the above-mentioned object, the invention according to claim 1 of the present invention is a counterweight that is connected to a car ascending / descending in a hoistway, this car and the main rope, and elevating in the opposite direction to the car. A car guide rail that guides the raising and lowering of the car, a counterweight guide rail that guides the raising and lowering of the counterweight, a folding inspection table that can be stored in the counterweight, and the counterbalance In an elevator apparatus comprising a fixing means for fixing a weight to the counterweight guide rail at the lower part of the hoistway, the inspection table and the fixing means are mechanically interlocked, and the balancing means is used by the fixing means. The inspection table can be assembled only when the weight is fixed.

このように構成した本発明の請求項１に係る発明では、点検台と固定手段とは機械的に連動するようになっており、固定手段によりつり合おもりを固定した状態で初めて点検台の組立てが可能となる。これによって、点検台を組立てた状態にあるとき、つり合いおもり、およびかごが動くことを抑止し、したがって、つり合おもりに点検台を設けたものにおいて保守作業者の安全を確保できる。また、点検台と固定手段とを機械的に連動する構造とすることで、装置を簡易なものとすることができる。   In the invention according to claim 1 of the present invention constructed as described above, the inspection table and the fixing means are mechanically interlocked, and the inspection table is assembled only after the counterweight is fixed by the fixing means. Is possible. Thus, when the inspection table is in the assembled state, the counterweight and the car are prevented from moving, and therefore the safety of the maintenance worker can be ensured in the case where the counterweight is provided with the inspection table. Moreover, the apparatus can be simplified by adopting a structure in which the inspection table and the fixing means are mechanically linked.

また、本発明の請求項２に係る発明は、前記固定手段が、前記つり合おもりに設けられる第１の貫通孔と、前記つり合おもり用ガイドレールに固定され、前記第１の貫通孔と対向可能な第２の貫通孔を有する受け材と、前記第１の貫通孔および前記第２の貫通孔に挿通される固定ピンとから成るとともに、前記点検台に、この点検台を開いたときに前記第１の貫通孔および前記第２の貫通孔と対向可能となり、かつ、前記固定ピンが挿通される第３の貫通孔を設け、前記固定ピンを前記第１の貫通孔、前記第２の貫通孔および前記第３の貫通孔に挿通させたときに前記点検台の開状態が保持されることを特徴としている。   In the invention according to claim 2 of the present invention, the fixing means is fixed to the first through-hole provided in the counterweight, and the counterweight guide rail, and the first through-hole A receiving member having a second through-hole that can be opposed to the first through-hole and a fixing pin inserted through the second through-hole; and when the inspection table is opened on the inspection table A third through hole is provided which can be opposed to the first through hole and the second through hole and through which the fixing pin is inserted, and the fixing pin serves as the first through hole and the second through hole. The open state of the inspection table is maintained when the inspection table is inserted through the through hole and the third through hole.

このように構成した本発明の請求項２に係る発明では、第１の貫通孔、第２の貫通孔および第３の貫通孔のそれぞれを互いに対向させた状態とし、これらの貫通孔に固定ピンを挿通して、つり合おもりをつり合いおもり用ガイドレールに対して固定するとともに、点検台の開状態を保持する。このように、各部位に設けた貫通孔に固定ピンを挿通するという簡易な構造で点検台と固定手段とを機械的に連動させることができる。   In the invention according to claim 2 of the present invention configured as described above, the first through hole, the second through hole, and the third through hole are made to face each other, and a fixing pin is placed in these through holes. Is inserted, and the counterweight is fixed to the counterweight guide rail and the inspection table is kept open. Thus, the inspection table and the fixing means can be mechanically interlocked with a simple structure in which the fixing pin is inserted into the through hole provided in each part.

さらに、本発明の請求項３に係る発明は、前記固定ピンが所定の格納位置から移動したことを検知してかごの運転を停止させる格納スイッチを設けたことを特徴としている。   Furthermore, the invention according to claim 3 of the present invention is characterized in that a storage switch for stopping the operation of the car by detecting that the fixed pin has moved from a predetermined storage position is provided.

このように構成した本発明の請求項３に係る発明では、点検台の組立てのために固定ピンが格納位置から外されると、格納スイッチを介してかごの運転が電気的に停止される。これによって、点検台利用時における保守作業者の安全をさらに高めることができる。   In the invention according to the third aspect of the present invention configured as described above, when the fixing pin is removed from the storage position for assembling the inspection table, the operation of the car is electrically stopped via the storage switch. Thereby, the safety of the maintenance worker when using the inspection table can be further enhanced.

本発明によれば、固定手段によりつり合おもりを固定した状態で初めて点検台の組立てが可能となることから、点検台を組立てた状態にあるとき、つり合いおもり、およびかごが動くことを抑止し、したがって、保守作業時の安全性を高めることができる。また、点検台と固定手段とを機械的に連動させる構造とすることで、装置を簡易なものとし、製造コストの低減を図るとともに、電気的な異常により点検台が開かないといった事態を避けることができる。さらに、作業時にかごの運転を電気的に停止する格納スイッチを設けた場合、機械的な手段および電気的な手段の２系統で、保守作業時、かご、およびつり合いおもりを固定するものとなり、さらなる安全性の向上を図ることができる。   According to the present invention, since the inspection table can be assembled only after the counterweight is fixed by the fixing means, the counterweight and the car are prevented from moving when the inspection table is assembled. Therefore, safety during maintenance work can be improved. In addition, the structure of mechanically interlocking the inspection table and the fixing means will simplify the device, reduce the manufacturing cost, and avoid the situation where the inspection table cannot be opened due to an electrical abnormality. Can do. Furthermore, when a retractable switch that electrically stops the operation of the car during work is provided, the car and the counterweight are fixed at the time of maintenance work by two systems of mechanical means and electrical means. Safety can be improved.

以下、本発明に係るエレベーター装置の実施の形態を図に基づいて説明する。   Hereinafter, an embodiment of an elevator apparatus according to the present invention will be described with reference to the drawings.

図１は本発明に係るエレベーター装置の一実施形態を示す概略構成図、図２は点検台を組立てた状態を示す側面図、図３は点検台を格納した状態を示す側面図、図４は本実施形態における点検台および固定手段の要部を示す斜視図、図５は要部を異なる方向から見た斜視図である。   1 is a schematic configuration diagram showing an embodiment of an elevator apparatus according to the present invention, FIG. 2 is a side view showing a state where an inspection table is assembled, FIG. 3 is a side view showing a state where the inspection table is stored, and FIG. The perspective view which shows the principal part of the inspection stand and fixing means in this embodiment, FIG. 5 is the perspective view which looked at the principal part from the different direction.

エレベーター装置は、図１に示すように、人および荷物を載せて昇降路１内を昇降するかご２と、このかご２と主索３を介して連結され、かご２と反対方向に昇降するつり合おもり４と、最下階付近に設置され、主索３を介してかご２とつり合おもり４とを駆動し昇降させる巻上機５と、かご２の昇降を案内するかご用ガイドレール６と、つり合いおもり４の昇降を案内するつり合いおもり用ガイドレール７と、つり合おもり４に収納可能に設けられる折りたたみ式の点検台８と、つり合いおもり４と対向する昇降路１の底部に設置されたつり合おもり用緩衝器９と、つり合おもり４を昇降路下部にてつり合いおもり用ガイドレール７に対して固定する固定手段１０とを備えている。なお、５ａは巻上機５を支持する支持台である。   As shown in FIG. 1, the elevator apparatus is connected to a car 2 that moves up and down in the hoistway 1 with a person and a load, and is connected to the car 2 via a main rope 3 and lifts in the opposite direction to the car 2. A counterweight 4, a hoisting machine 5 that is installed near the lowermost floor and drives the car 2 and the counterweight 4 via the main rope 3 to move up and down, and a car guide rail 6 that guides the lifting and lowering of the car 2. And a counterweight guide rail 7 that guides the lifting and lowering of the counterweight 4, a folding inspection table 8 that can be stored in the counterweight 4, and the bottom of the hoistway 1 that faces the counterweight 4. A counterweight buffer 9 and a fixing means 10 for fixing the counterweight 4 to the counterweight guide rail 7 at the lower part of the hoistway are provided. In addition, 5a is a support stand for supporting the hoisting machine 5.

つり合おもり４は、図２および図３に示すように、かご２の重量に対応するように積載される着脱可能なおもり４ａと、おもり４ａを支持するつり合おもり枠４ｂと、つり合おもり枠４ｂの上部に設置され、主索３が巻き掛けられる吊り車４ｃとを備えている。   As shown in FIGS. 2 and 3, the counterweight 4 includes a detachable weight 4a that is loaded so as to correspond to the weight of the car 2, a counterweight frame 4b that supports the weight 4a, and a counterweight. A suspension wheel 4c is provided on the upper portion of the frame 4b and around which the main rope 3 is wound.

点検台８は、図２および図３に示すように、保守作業者が作業を行なう作業部８ａと、つり合おもり枠４ｂに固定され、作業部８ａの一端が回動可能に取付けられる上受け台８ｂと、作業部８ａの中間位置に一端が回動可能に接続される支持部材８ｃと、支持部材８ｃの他端が回動可能に取付けられる下受け台８ｄと、作業部８ａの周囲に設けられる手摺り８ｅとを備えている。なお、図３は点検台８を格納してかご２の昇降スペースを確保した状態を示し、図２に示す状態から、手摺り８ｅを折り畳むとともに、作業部８ａと上受け台８ｂとの回動部、作業部８ａと支持部材８ｃとの回動部、支持部材８ｃと下受け台８ｄとの回動部を介し、作業部８ａを下向きに格納する。なお、作業部８ａの格納方向が上向きとなる構造とすれば、つり合おもり４下方に作業部８ａの格納のために必要となる寸法が短くなることから、ピットの深さ寸法が浅い場合において有効である。   As shown in FIGS. 2 and 3, the inspection table 8 is fixed to a working part 8 a on which a maintenance worker works and a counterweight frame 4 b, and an upper support on which one end of the working part 8 a is rotatably attached. Around the work part 8a, a support member 8c, one end of which is pivotally connected to an intermediate position of the work part 8a, a support base 8d to which the other end of the support member 8c is pivotally attached, and the work part 8a. And a handrail 8e provided. FIG. 3 shows a state where the inspection table 8 is stored and a space for raising and lowering the car 2 is secured. From the state shown in FIG. 2, the handrail 8e is folded and the working unit 8a and the upper receiving table 8b are rotated. The working unit 8a is stored in a downward direction via the pivoting unit between the working unit 8a and the support member 8c, and the pivoting unit between the support member 8c and the lower receiving base 8d. If the storage direction of the working unit 8a is upward, the dimension required for storing the working unit 8a below the counterweight 4 is shortened, so that the pit depth is shallow. It is valid.

そして、本実施形態のエレベーター装置は、図４に示すように、点検台８と固定手段１０とを機械的に連動させるようになっている。すなわち、固定手段１０が、つり合おもり枠４ｂに設けられる第１の貫通孔１０ａと、つり合おもり用ガイドレール７に固定されるとともに、第１の貫通孔１０ａと対向可能な第２の貫通孔１０ｂ１を有する受け材１０ｂと、第１の貫通孔１０ａおよび第２の貫通孔１０ｂ１に挿通される固定ピン１０ｃとから成るとともに、点検台８に、この点検台８を開いたときに第１の貫通孔１０ａおよび第２の貫通孔１０ｂ１と対向可能となり、かつ、固定ピン１０ｃが挿通される第３の貫通孔（図示せず）を設けたものとなっている。なお、第３の貫通孔は下受け台８ｄに形成されている。また、エレベーターの運転速度が比較的速い場合、第３の貫通孔を介してボルト等を用いて格納状態にある点検台８をつり合おもり枠４ｂに対して固定することで、点検台８の振動・音の発生を防ぐことができる。さらに、エレベーターに備えられるブレーキ開放装置でつり合おもり４をつり合おもり側緩衝器９の上面に載置させた状態とし、すなわち、つり合おもり４の質量がつり合おもり側緩衝器９にかかった状態で、固定手段１０の受け材１０ｂを取付けるようにすることにより、受け材１０ｂに求められる強度を低減し、その構造を簡易なものとすることができる。   And the elevator apparatus of this embodiment makes the inspection stand 8 and the fixing means 10 interlock mechanically, as shown in FIG. In other words, the fixing means 10 is fixed to the first through hole 10a provided in the counterweight frame 4b and the counterweight guide rail 7, and the second through which can be opposed to the first through hole 10a. The receiving member 10b having a hole 10b1 and a fixing pin 10c inserted through the first through hole 10a and the second through hole 10b1, and the inspection table 8 is opened when the inspection table 8 is opened. The through-hole 10a and the second through-hole 10b1 can be opposed to each other, and a third through-hole (not shown) through which the fixing pin 10c is inserted is provided. The third through hole is formed in the lower receiving base 8d. Further, when the elevator operating speed is relatively high, the inspection table 8 in the retracted state is fixed to the counterweight frame 4b by using bolts or the like through the third through hole. Generation of vibration and sound can be prevented. Further, the counterweight 4 is placed on the upper surface of the counterweight-side shock absorber 9 by the brake release device provided in the elevator, that is, the mass of the counterweight 4 is applied to the counterweight-side shock absorber 9. By attaching the receiving member 10b of the fixing means 10 in a state where the fixing member 10 is attached, the strength required for the receiving member 10b can be reduced and the structure thereof can be simplified.

また、固定ピン１０ｃを通常運転時に格納する格納部１１が設けられている。格納部１１は、図５に示すように、受け材１０ｂの裏面側に対となって配置され、固定ピン１０ｃが挿通される貫通孔を有し、その両端を支持する支持体１１ａと、固定ピン１０ｃが挿通される貫通孔を有するおもり１１ｂと、おもり１１ｂを上下移動可能に案内するとともに、上下方向の抜けを防止する案内部１１ｃと、固定ピン１０ｃが所定の格納位置から移動したことを検知してかご２の運転を停止させる格納スイッチ１１ｄとから成っている。   Moreover, the storage part 11 which stores the fixed pin 10c at the time of normal operation is provided. As shown in FIG. 5, the storage portion 11 is disposed in pairs on the back surface side of the receiving material 10 b, has a through hole through which the fixing pin 10 c is inserted, and a support body 11 a that supports both ends thereof, The weight 11b having a through-hole through which the pin 10c is inserted, the weight 11b being guided so as to be movable up and down, the guide portion 11c for preventing the vertical pull-out, and the fixed pin 10c being moved from a predetermined storage position The storage switch 11d detects and stops the operation of the car 2.

本実施形態にあっては、最下階付近に設置された巻上機５の保守作業を行なうため点検台８を組立てる場合、つり合おもり枠４ｂの第１の貫通孔１０ａと、受け材１０ｂの第２の貫通孔１０ｂ１が同じ高さ位置となり互いに対向するように、つり合おもり４を昇降路下部に移動する。なお、ここで、つり合おもり４を最下位置とした状態にあわせて固定手段１０の受け材１０ｂをあらかじめつり合おもり用ガイドレール７に取付けておくことで作業時間の短縮を図ることができる。その後、固定ピン１０ｃを格納部１１から引抜くとともに、つり合おもり４に格納されている点検台８を開き、受け台８ｄの第３の貫通孔８ｆを、第１の貫通孔１０ａおよび第２の貫通孔１０ｂ１に対向した状態とし、固定ピン１０ｃを各々の貫通孔に貫通する。このように、固定ピン１０ｃを第１の貫通孔１０ａ、第２の貫通孔１０ｂ１および第３の貫通孔８ｆに挿通させたときに点検台８の開状態が保持される。この状態で図１に示すように、保守作業者が作業台８に乗り、作業を行なう。このとき、つり合おもり４は固定手段１０によりつり合いおもり用ガイドレール７に対して機械的に固定されているため、巻上機５のブレーキの分解・調整作業を実施しても、かご２およびつり合おもり４が移動することはなく、保守作業者の安全が保たれる。また、点検台８の組立て時に固定ピン１０ｃが格納部１１から引抜かれた際、おもり１１ｂが自重で落下して格納スイッチ１１ｄが動作し、かご２の運転を電気的に停止することで、第三者による不意な運転を抑止し、保守作業者の安全をさらに確保する。   In the present embodiment, when assembling the inspection table 8 to perform maintenance work for the hoisting machine 5 installed near the lowest floor, the first through hole 10a of the counterweight frame 4b and the receiving material 10b. The counterweight 4 is moved to the lower part of the hoistway so that the second through holes 10b1 are at the same height and face each other. Here, the working time can be shortened by attaching the receiving material 10b of the fixing means 10 to the counterweight guide rail 7 in advance so that the counterweight 4 is in the lowest position. . Thereafter, the fixing pin 10c is pulled out from the storage portion 11, the inspection table 8 stored in the counterweight 4 is opened, and the third through hole 8f of the receiving table 8d is connected to the first through hole 10a and the second through hole. In this state, the fixing pin 10c is penetrated through each through hole. Thus, when the fixing pin 10c is inserted through the first through hole 10a, the second through hole 10b1, and the third through hole 8f, the open state of the inspection table 8 is maintained. In this state, as shown in FIG. 1, the maintenance worker gets on the work table 8 and performs work. At this time, since the counterweight 4 is mechanically fixed to the counterweight guide rail 7 by the fixing means 10, even if the brake of the hoisting machine 5 is disassembled and adjusted, the car 2 and The counterweight 4 does not move and the safety of the maintenance worker is maintained. In addition, when the fixing pin 10c is pulled out from the storage portion 11 when the inspection table 8 is assembled, the weight 11b falls by its own weight, the storage switch 11d operates, and the operation of the car 2 is electrically stopped. Prevent unintentional operation by the three parties and further ensure the safety of maintenance workers.

本実施形態によれば、固定手段１０によりつり合おもり４を固定した状態で初めて点検台８の組立てが可能となることから、点検台８を組立てた状態にあるとき、つり合いおもり４、およびかご２が動くことを抑止し、したがって、保守作業時の安全性を高めることができる。また、点検台８と固定手段１０とを機械的に連動させる構造とすることで、装置を簡易なものとし、製造コストの低減を図るとともに、電気的な異常により点検台８が開かないといった事態を避けることができる。さらに、作業時にかご２の運転を電気的に停止する格納スイッチ１１ｄを設けることで、機械的な手段および電気的な手段の２系統で、保守作業時、かご２、およびつり合いおもり４を停止するものとなり、さらなる安全性の向上を図ることができる。   According to the present embodiment, since the inspection table 8 can be assembled only after the counterweight 4 is fixed by the fixing means 10, when the inspection table 8 is in an assembled state, the counterweight 4 and the car 2 can be prevented from moving, and thus safety during maintenance work can be improved. Further, the structure in which the inspection table 8 and the fixing means 10 are mechanically interlocked to simplify the apparatus, reduce the manufacturing cost, and prevent the inspection table 8 from being opened due to an electrical abnormality. Can be avoided. Furthermore, by providing a retractable switch 11d that electrically stops the operation of the car 2 during work, the car 2 and the counterweight 4 are stopped during maintenance work by two systems, mechanical means and electrical means. Therefore, the safety can be further improved.

図１は本発明に係るエレベーター装置の一実施形態を示す概略構成図である。FIG. 1 is a schematic configuration diagram showing an embodiment of an elevator apparatus according to the present invention. 点検台を組立てた状態を示す側面図である。It is a side view which shows the state which assembled the inspection stand. 点検台を格納した状態を示す側面図である。It is a side view which shows the state which stored the inspection stand. 本実施形態における点検台および固定手段の要部を示す斜視図である。It is a perspective view which shows the principal part of the inspection stand and fixing means in this embodiment. 要部を異なる方向から見た斜視図である。It is the perspective view which looked at the principal part from the different direction.

符号の説明Explanation of symbols

１ 昇降路
２ かご
３ 主索
４ つり合いおもり
４ａ おもり
４ｂ つり合おもり枠
４ｃ 吊り車
５ 巻上機
６ かご用ガイドレール
７ つり合いおもり用ガイドレール
８ 点検台
８ａ 作業部
８ｂ 上受け台
８ｃ 支持部材
８ｄ 下受け台
８ｅ 手摺り
８ｆ 第３の貫通孔
９ つり合おもり用緩衝器
１０ 固定手段
１０ａ 第１の貫通孔
１０ｂ 受け材
１０ｂ１ 第２の貫通孔
１０ｃ 固定ピン１０
１１ 格納部
１１ａ 支持体
１１ｂ おもり
１１ｃ 案内部
１１ｄ 格納スイッチ DESCRIPTION OF SYMBOLS 1 Hoistway 2 Car 3 Main rope 4 Balance weight 4a Weight 4b Balance weight frame 4c Lifting vehicle 5 Lifting machine 6 Guide rail for cage 7 Guide rail for balance weight 8 Inspection stand 8a Working part 8b Upper support 8c Support member 8d Lower receiving base 8e Handrail 8f Third through hole 9 Counterweight buffer 10 Fixing means 10a First through hole 10b Receiving material 10b1 Second through hole 10c Fixing pin 10
DESCRIPTION OF SYMBOLS 11 Storage part 11a Support body 11b Weight 11c Guide part 11d Storage switch

Claims (3)

昇降路内を昇降するかごと、このかごと主索を介して連結され、前記かごと反対方向に昇降するつり合おもりと、前記かごの昇降を案内するかご用ガイドレールと、前記つり合いおもりの昇降を案内するつり合いおもり用ガイドレールと、前記つり合おもりに収納可能に設けられる折りたたみ式の点検台と、前記つり合おもりを昇降路下部にて前記つり合いおもり用ガイドレールに対して固定する固定手段とを備えたエレベーター装置において、
前記点検台と前記固定手段とを機械的に連動させ、前記固定手段により前記つり合おもりを固定した状態で初めて前記点検台の組立てを可能としたことを特徴とするエレベーター装置。 A car that moves up and down in the hoistway, this car is connected via a main rope, a counterweight that moves up and down in the opposite direction of the car, a car guide rail that guides the car ascending and descending, and the counterweight A counterweight guide rail that guides the lifting and lowering, a folding inspection table that can be stored in the counterweight, and a fixing that fixes the counterweight to the counterweight guide rail at the lower part of the hoistway. In an elevator apparatus comprising means,
An elevator apparatus characterized in that the inspection table can be assembled only in a state where the inspection table and the fixing means are mechanically interlocked and the counterweight is fixed by the fixing means. 前記固定手段が、前記つり合おもりに設けられる第１の貫通孔と、前記つり合おもり用ガイドレールに固定され、前記第１の貫通孔と対向可能な第２の貫通孔を有する受け材と、前記第１の貫通孔および前記第２の貫通孔に挿通される固定ピンとから成るとともに、前記点検台に、この点検台を開いたときに前記第１の貫通孔および前記第２の貫通孔と対向可能となり、かつ、前記固定ピンが挿通される第３の貫通孔を設け、前記固定ピンを前記第１の貫通孔、前記第２の貫通孔および前記第３の貫通孔に挿通させたときに前記点検台の開状態が保持されることを特徴とする請求項１記載のエレベーター装置。   The fixing means includes a first through hole provided in the counterweight, and a receiving material having a second through hole that is fixed to the counterweight guide rail and can be opposed to the first through hole. And the first through hole and the fixing pin inserted through the second through hole, and the first through hole and the second through hole when the inspection table is opened on the inspection table. A third through hole through which the fixing pin is inserted, and the fixing pin is inserted through the first through hole, the second through hole, and the third through hole. The elevator apparatus according to claim 1, wherein the open state of the inspection table is sometimes maintained. 前記固定ピンが所定の格納位置から移動したことを検知してかごの運転を停止させる格納スイッチを設けたことを特徴とする請求項２記載のエレベーター装置。   The elevator apparatus according to claim 2, further comprising a storage switch that detects that the fixed pin has moved from a predetermined storage position and stops the operation of the car.
JP2008328418A 2008-12-24 2008-12-24 Elevator equipment Expired - Fee Related JP5259379B2 (en)

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JP5421232B2 (en) * 2010-12-08 2014-02-19 株式会社日立製作所 Elevator equipment
JP2013086935A (en) * 2011-10-19 2013-05-13 Hitachi Ltd Double deck elevator
JP5805499B2 (en) * 2011-11-02 2015-11-04 株式会社日立製作所 Elevator equipment
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