JP4071133B2 - Elevator hold door closing device - Google Patents

Description

【００２１】
次に図３を参照し、図１に示したエレベータのホールドア閉鎖装置１００の第１変形例について説明すると、このホールドア閉鎖装置１１０においては、閉鎖ケーブル８の先端側が錘１０に貫設された中心孔内に挿通されて下方に延びるともに、その先端に固定された先端部材２１と錘１０の下面との間にコイルばね２２が圧縮ばねとして介設されている。
これにより、錘１０が上下振動して下方に変位する毎にコイルばね２０が圧縮され、そのばね反力が閉鎖ケーブル８を介してホールドア１Ｌに伝達され、同様の作用効果を得ることができる。
【００２２】
図４に示した第２変形例のホールドア閉鎖装置１２０においては、コイルばね２３が、閉鎖ケーブル８の基端とホールドア１Ｌのブラケット７との間に引っ張りばねとして介設されている。
これにより、錘１０側にコイルばねを取り付けるスペースが無い場合でも、コイルばね２３を介設して同様の作用効果を得ることができる。
【００２３】
図５に示した第３変形例のホールドア閉鎖装置１３０においては、コイルばね２４が、閉鎖ケーブル８の途中に介設されている。
これにより、錘１０側およびブラケット７側にコイルばねを取り付けるスペースが無い場合でも、閉鎖ケーブル８の途中の適切な位置にコイルばね２４を介設し、同様の作用効果を得ることができる。
【００２４】
図６に示した第４変形例のホールドア閉鎖装置１４０においては、錘が上側部分１０Ｕと下側部分１０Ｌとから構成され、かつコイルばね２５が錘の上側部分１０Ｕと下側部分１０Ｌとの間に介設されている。
このとき、錘の上側部分１０Ｕは、錘の下側部分１０Ｌに作用する重力およびコイルばね２４のばね反力を閉鎖ケーブル８にホールドア１Ｌに伝達する伝達手段の一部を構成している。
したがって、錘の上側部分１０Ｕおよび下側部分１０Ｌの重量を適切に設定することにより、ホールドア１Ｌに断続的に作用させる閉鎖付勢力の大きさを最適に設定することが可能となる。
【００２５】
図７に示した第５変形例のホールドア閉鎖装置１５０においては、錘１０に作用する重力をホールドア１Ｌのブラケット７に伝達するための伝達手段が、細長いコイルばね２６となっている。
これにより、伝達手段の全長にわたる領域をコイルばね２６のために用いることができるから、ホールドア１Ｌに断続的に作用させる閉鎖付勢力の大きさを最適に設定することが可能となる。
【００２６】
第２実施形態
次に図８を参照し、第２実施形態のエレベータのホールドア閉鎖装置についてに説明する。
【００２７】
上述した第１実施形態およびその変形例は、いずれも錘１０に作用する重力を閉鎖ケーブル８を介して左側のホールドア１Ｌに伝達する構成であった。
これに対して、本第２実施形態のホールドア閉鎖装置２００においては、錘に作用する重力をホールドアに伝達する伝達手段が揺動リンク機構となっている。
【００２８】
すなわち、建物側と左右一対のホールドア１Ｌ，１Ｒとの間には、ホールドア１Ｌ，１Ｒをそれぞれ閉じ側に付勢するための左右一対の揺動リンク機構３０Ｌ，３０Ｒがそれぞれ介設されている。
これらの揺動リンク機構３０Ｌ，３０Ｒは、その基端が建物側に揺動自在に軸支された第１リンク３１と、この第１リンク３１の先端およびホールドアにそれぞれ揺動自在に軸支された第２リンク３２とを有している。
そして、第１リンク３１にはコイルばね３３を介して錘３４が吊り下げられている。
【００２９】
これにより、左右一対のホールドア１Ｌ，１Ｒは、錘３４に作用する重力によって付勢されて閉じ方向に次第に加速するが、例えばホールシル６に入り込んだゴミとドアシュー５，５との間に矢印Ａで示した摩擦抵抗が生じると、ホールドア１Ｌ，１Ｒは閉じ方向に急激に減速する。
ところが、錘３４はその慣性力によってそのまま下降し続けようとし、第１リンク３１との間に介設されているコイルばね３３の弾性伸縮作用によって上下振動を開始する。
【００３０】
そして、上下振動中の錘３４が下向きに変位する毎に、左右一対のホールドア１Ｌ，１Ｒには大きな閉鎖付勢力が断続的に作用する。
これにより、左右一対のホールドア１Ｌ，１Ｒは徐々に摩擦抵抗に打ち勝って閉じ側に変位し、やがて完全に閉じ切ることができる。
したがって、左右一対のホールドア１Ｌ，１Ｒの不完全閉鎖に起因してエレベータが運行停止する事態を回避することができるから、保守作業員を現地に急行させてメンテナンス作業を行わなくても済むことになる。
【００３１】
以上、本発明に係るエレベータのホールドア閉鎖装置の各実施形態ついて詳しく説明したが、本発明は上述した実施形態によって限定されるものではなく、種々の変更が可能であることは言うまでもない。
例えば、上述した実施形態においては、両開き形式のホールドア１Ｌ，１Ｒを例にとって説明しているが、片開き形式のホールドアにも本発明を適用できることは言うまでもない。
【００３２】
【発明の効果】
以上の説明から明らかなように、本発明に係るエレベータのホールドア閉鎖装置は、錘に作用する重力をホールドアに伝達する伝達手段の途中に錘の上下振動を許容する弾性伸縮部材を介設したものであるから、ホールドアが閉じようとしているときにホールシル内のゴミ等の影響を受けてホールドアが減速すると、錘が上下振動してホールドアに対し大きな閉鎖付勢力を断続的に作用させる。
これにより、ホールドアは徐々に摩擦抵抗に打ち勝って閉じ側に変位し完全に閉じることになるから、ホールドアの不完全閉鎖に起因してエレベータが運行停止する事態を回避することができ、保守作業員を現地に急行させてメンテナンス作業を行う必要をなくすことができる。
【図面の簡単な説明】
【図１】第１実施形態のホールドア閉鎖装置を模式的に示す正面図。
【図２】図１中に示したホールドア閉鎖装置の作用を説明する図。
【図３】第１変形例のホールドア閉鎖装置を模式的に示す正面図。
【図４】第２変形例のホールドア閉鎖装置を模式的に示す正面図。
【図５】第３変形例のホールドア閉鎖装置を模式的に示す正面図。
【図６】第４変形例のホールドア閉鎖装置を模式的に示す正面図。
【図７】第５変形例のホールドア閉鎖装置を模式的に示す正面図。
【図８】第２実施形態のホールドア閉鎖装置を模式的に示す正面図。
【図９】従来のホールドア閉鎖装置を模式的に示す正面図。
【符号の説明】
１Ｌ，１Ｒ ホールドア
２ ドアハンガー
３ ハンガローラ
４ ハンガレール
５ ドアシュー
６ ホールシル
７ ブラケット
８ 閉鎖ケーブル（伝達手段）
９ プーリ
１０ 錘
１０Ｕ 錘の上側部分
１０Ｌ 錘の下側部分
１１ ガイド
１２Ｌ，１２Ｒ プーリ
１３ 連動ケーブル
１４，１５ ブラケット
２０ コイルばね
２１ 固定部材
２２，２３，２４，２５，２６ コイルばね（弾性伸縮部材）
３０Ｌ，３０Ｒ 揺動リンク機構
３１ 第１リンク
３２ 第２リンク
３３ コイルばね
３４ 錘
１００ 第１実施形態のホールドア閉鎖装置
１１０ 第１変形例のホールドア閉鎖装置
１２０ 第２変形例のホールドア閉鎖装置
１３０ 第３変形例のホールドア閉鎖装置
１４０ 第４変形例のホールドア閉鎖装置
１５０ 第５変形例のホールドア閉鎖装置
２００ 第２実施形態のホールドア閉鎖装置[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for closing an elevator hold using a weight, and more specifically, so that the hold door can be closed even when the hold door is difficult to close due to the influence of dust or the like in the hole sill. The present invention relates to an improved hold door closure device.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a hold door provided in a hall of an elevator is opened together with a car-side door by a car-side door driving device, and is closed by a hold-side closing device.
There are two types of hold door closing devices, one using gravity acting on the weight and the other using spring tension (see, for example, Patent Document 1). Regardless of the open / close position, there is an advantage that a constant closing biasing force can always be applied to the hold door.
[0003]
Here, an example of the structure of the hold door closing device using the weight will be outlined with reference to FIG. 9. The pair of left and right hold doors 1L, 1R is a double hanger type, and the hanger roller 3 provided on the door hanger 2L, 2R is a hanger rail. 4 Open and close in the left-right direction by rolling on top.
Further, the door shoes 5 and 5 provided at the lower ends of the pair of left and right holders 1L and 1R respectively regulate the lower ends of the holders 1L and 1R from being displaced in the front-rear direction while sliding in the groove of the hole sill 6. ing.
[0004]
The closing cable 8 whose one end is locked to the bracket 7 provided at the upper end of the left door 1L is wound downwardly after being wound around a pulley 9 rotatably supported above the right end of the hanger rail 4. A weight 10 is connected to the other end.
Thereby, the left holder 1L is always urged in the closing direction by the gravity acting on the weight 10.
The weight 10 is inserted into a cylindrical guide 11 and its swinging is restricted.
[0005]
An interlocking cable 13 is wound endlessly on pulleys 12L and 12R that are rotatably supported above the left and right ends of the hanger rail 4, respectively.
The upper reciprocating part 13a of the interlocking cable 13 is connected to a bracket 14 provided at the upper end of the left door 1L, and the lower reciprocating part 13b of the interlocking cable 13 is a bracket 15 provided at the upper end of the right door 1R. It is connected to the.
As a result, the pair of left and right hold doors 1L and 1R open and close in conjunction with each other.
[0006]
[Patent Document 1]
Japanese Patent Laid-Open No. 2000-211859 (FIGS. 2 and 3)
[0007]
[Problems to be solved by the invention]
By the way, if dust or the like is clogged in the groove of the hole sill 6, the displacement of the door shoes 5, 5 may be hindered and the closing operation of the hold doors 1L, 1R may be hindered.
Further, when a passenger's body or baggage entering the car collides with the hold doors 1L and 1R violently, the hold doors 1L and 1R are slightly bent and the door shoes 5 and 5 slide with the hall sill 6. There is a risk of hindering the closing operation of the doors 1L, 1R.
[0008]
When the hold doors 1L, 1R are caught by dust or the like in the hall sill 6 and are not completely closed, the elevator safety device is actuated to stop the raising and lowering of the car.
Accordingly, every time the hold doors 1L and 1R are not completely closed, the service personnel rush to the site, and maintenance work must be performed so that the hold doors 1L and 1R open and close smoothly.
[0009]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned problems of the prior art, and an elevator capable of closing the hold door as much as possible even when the hold door is difficult to close due to the influence of dust or the like in the hole sill. An object of the present invention is to provide a holder closing device.
[0010]
[Means for Solving the Problems]
The means according to claim 1, which solves the above problem, is a device for closing an elevator holder using a weight, and in the middle of a transmission means for transmitting gravity acting on the weight to the holder. It is characterized in that an elastic elastic member that allows vertical vibration of the weight is interposed.
The transmission means may be a flexible linear body such as a cable, a wire, a rope or a chain, or a swing link mechanism.
The elastic elastic member can be a metal spring such as a coil spring, a string of a polymer material such as rubber or elastomer, a columnar member or a block-shaped member.
Moreover, the position which interposes an elastic expansion-contraction member can be between a weight and a cable, for example, between the bracket and cable which were provided in the hold door.
Further, the weight can be divided in the vertical direction, and an elastic elastic member can be interposed between the upper part and the lower part.
Furthermore, the transmission means itself can be composed of an elongated coil spring.
[0011]
That is, in the elevator holder closing device according to the first aspect, even when the hold speed is about to close, even if the traveling speed is reduced due to the influence of dust in the hole sill or frictional resistance with the hole sill. The weight tries to keep descending due to the inertial force.
At this time, since the elastic expansion / contraction member is interposed in the middle of the transmission means, the weight that was going to continue to descend starts to vibrate up and down.
Each time the weight during vertical vibration is displaced downward, the spring reaction force of the elastic elastic member acts intermittently on the holder via the transmission means.
As a result, a large closing urging force acts intermittently on the hold door, so the hold door gradually overcomes dust and frictional resistance and is displaced to the closing side, and then closes completely. It is possible to avoid a situation in which the operation of the elevator stops due to the above.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, with reference to FIG. 1 thru | or FIG. 8, each embodiment of the elevator holder closing apparatus which concerns on this invention is described in detail.
In the following description, the opening and closing direction of the hold door is referred to as the left-right direction, the direction in which passengers enter and exit from a car not shown is referred to as the front-rear direction, and the same portions are denoted by the same reference numerals. Is omitted.
[0013]
First Embodiment First, an elevator holder closing device according to a first embodiment will be described with reference to FIGS. 1 and 2.
[0014]
In the elevator holder closing device 100 shown in FIG. 1, a pair of left and right holders 1L, 1R are opened and closed in the left-right direction by rolling the hanger rollers 3 provided on the door hangers 2L, 2R.
Further, the door shoes 5 and 5 provided at the lower ends of the pair of left and right holders 1L and 1R respectively regulate the lower ends of the holders 1L and 1R from being displaced in the front-rear direction while sliding in the groove of the hole sill 6. ing.
[0015]
A closing cable (transmission means) 8 whose base end is locked to a bracket 7 provided at the upper end of the left door 1L is wound around a pulley 9 rotatably supported above the right end of the hanger rail 4. After that, it goes downward and its tip is connected to the weight 10 via the coil spring 20.
Thereby, the left holder 1L is always urged in the closing direction by the gravity acting on the weight 10.
The weight 10 is inserted into a cylindrical guide 11 and its swinging is restricted.
[0016]
An interlocking cable 13 is wound endlessly on pulleys 12L and 12R that are rotatably supported above the left and right ends of the hanger rail 4, respectively.
The upper reciprocating part 13a of the interlocking cable 13 is connected to a bracket 14 provided at the upper end of the left door 1L, and the lower reciprocating part 13b of the interlocking cable 13 is a bracket 15 provided at the upper end of the right door 1R. It is connected to the.
As a result, the pair of left and right holders 1L and 1R open and close in conjunction with each other.
[0017]
The pair of left and right hold doors 1L and 1R are engaged with a pair of left and right car side doors (not shown) and an open side, and together with the car side door by the driving force of a door driving device (not shown) that opens and closes the car side door. Displaces to the open side.
In contrast, when the pair of left and right hold doors 1L and 1R are closed, the car side door starts to close at a higher speed.
Accordingly, the pair of left and right holders 1L and 1R are closed by being biased by gravity acting on the weight 10 in a free state in which the engagement with the car-side door is released.
[0018]
At this time, as shown in FIG. 2, the pair of left and right holders 1L and 1R are urged by the gravity acting on the weight 10 and gradually accelerate in the closing direction. When the frictional resistance indicated by the arrow A is generated in the door shoes 5 and 5, the hold doors 1L and 1R are rapidly decelerated in the closing direction.
However, the weight 10 tends to continue to descend as indicated by the arrow B due to its inertial force, and starts vertical vibration by the elastic expansion and contraction action of the coil spring 20 interposed between the closed cable 8 and the weight 10.
[0019]
Then, every time the weight 10 during vertical vibration is displaced downward, a large closing biasing force as indicated by an arrow C acts intermittently on the left holder 1L.
As a result, the pair of left and right holders 1L, 1R gradually overcomes the frictional resistance and displaces to the closing side, and can eventually be completely closed.
Therefore, it is possible to avoid a situation in which the elevator stops due to incomplete closing of the pair of left and right hold doors 1L and 1R, so that it is not necessary to perform maintenance work by urging maintenance personnel to the site. become.
[0020]
It should be noted that the specifications of the coil spring 20 are capable of applying an effective closing biasing force to the holders 1L and 1R while having durability to withstand opening and closing operations of the holders 1L and 1R for tens of thousands of times. It is necessary to select various dimensions and materials.
For example, one embodiment that could apply an effective closing bias to the hold door was as follows.

[0021]
Next, a first modification of the elevator holder closing device 100 shown in FIG. 1 will be described with reference to FIG. 3. In this holder closing device 110, the distal end side of the closing cable 8 is provided through the weight 10. A coil spring 22 is interposed as a compression spring between the tip member 21 fixed to the tip of the weight member 10 and the lower surface of the weight 10 while being inserted into the center hole and extending downward.
As a result, each time the weight 10 is vibrated up and down and displaced downward, the coil spring 20 is compressed, and the spring reaction force is transmitted to the holder 1L via the closing cable 8 and the same effect can be obtained. .
[0022]
In the hold door closing device 120 of the second modification shown in FIG. 4, the coil spring 23 is interposed as a tension spring between the base end of the closing cable 8 and the bracket 7 of the hold door 1L.
Thereby, even when there is no space for attaching the coil spring on the weight 10 side, the same effect can be obtained by interposing the coil spring 23.
[0023]
In the hold door closing device 130 of the third modification shown in FIG. 5, the coil spring 24 is interposed in the middle of the closing cable 8.
Thereby, even when there is no space for attaching the coil spring on the weight 10 side and the bracket 7 side, the coil spring 24 can be provided at an appropriate position in the middle of the closing cable 8 to obtain the same effect.
[0024]
In the hold door closing device 140 of the fourth modification shown in FIG. 6, the weight is composed of the upper part 10U and the lower part 10L, and the coil spring 25 is formed between the upper part 10U and the lower part 10L of the weight. It is interposed between.
At this time, the upper portion 10U of the weight constitutes a part of transmission means for transmitting the gravity acting on the lower portion 10L of the weight and the spring reaction force of the coil spring 24 to the hold cable 1L.
Therefore, by appropriately setting the weights of the upper portion 10U and the lower portion 10L of the weight, it is possible to optimally set the magnitude of the closing biasing force that acts intermittently on the hold door 1L.
[0025]
In the hold door closing device 150 of the fifth modification shown in FIG. 7, the transmission means for transmitting the gravity acting on the weight 10 to the bracket 7 of the hold door 1 </ b> L is an elongated coil spring 26.
Thereby, since the area | region covering the full length of a transmission means can be used for the coil spring 26, it becomes possible to set optimally the magnitude | size of the closing urging | biasing force made to act on the holder 1L intermittently.
[0026]
Second Embodiment Next, with reference to FIG. 8, an elevator holder closing device according to a second embodiment will be described.
[0027]
The first embodiment described above and the modifications thereof are all configured to transmit the gravity acting on the weight 10 to the left holder 1 </ b> L via the closing cable 8.
On the other hand, in the hold door closing device 200 of the second embodiment, the transmission means for transmitting the gravity acting on the weight to the hold door is a swing link mechanism.
[0028]
That is, a pair of left and right swing link mechanisms 30L and 30R for biasing the holders 1L and 1R toward the closing side are interposed between the building side and the pair of left and right holders 1L and 1R, respectively. Yes.
These swing link mechanisms 30L, 30R are pivotally supported by a first link 31 whose base end is pivotally supported on the building side, and by a tip and a holder of the first link 31, respectively. The second link 32 is provided.
A weight 34 is suspended from the first link 31 via a coil spring 33.
[0029]
Accordingly, the pair of left and right holders 1L and 1R are urged by the gravity acting on the weight 34 and gradually accelerate in the closing direction. For example, the arrow A between the dust that has entered the hole sill 6 and the door shoes 5 and 5 When the frictional resistance indicated by (2) occurs, the hold doors 1L and 1R decelerate rapidly in the closing direction.
However, the weight 34 tends to continue to descend as a result of its inertial force, and starts vertical vibration due to the elastic expansion and contraction of the coil spring 33 interposed between the first link 31 and the weight 34.
[0030]
A large closing biasing force acts intermittently on the pair of left and right hold doors 1L and 1R each time the weight 34 during vertical vibration is displaced downward.
As a result, the pair of left and right holders 1L, 1R gradually overcomes the frictional resistance and displaces to the closing side, and can eventually be completely closed.
Therefore, it is possible to avoid a situation in which the elevator stops due to incomplete closing of the pair of left and right hold doors 1L and 1R, so that it is not necessary to perform maintenance work by urging maintenance personnel to the site. become.
[0031]
As mentioned above, although each embodiment of the elevator holder closing device according to the present invention was described in detail, it is needless to say that the present invention is not limited to the above-described embodiment, and various modifications are possible.
For example, in the above-described embodiment, the double-open type hold doors 1L and 1R are described as an example, but it goes without saying that the present invention can also be applied to a single-open type hold door.
[0032]
【The invention's effect】
As is apparent from the above description, the elevator holder closing device according to the present invention is provided with an elastic expansion / contraction member that allows vertical vibration of the weight in the middle of the transmission means that transmits gravity acting on the weight to the holder. Therefore, if the holder is decelerated under the influence of dust in the hole sill while the holder is about to close, the weight will vibrate up and down and a large closing biasing force will act on the holder intermittently. Let
As a result, the hold door gradually overcomes the frictional resistance and displaces to the closing side and closes completely. Therefore, it is possible to avoid the situation where the elevator stops due to the incomplete closing of the hold door. It is possible to eliminate the need to perform maintenance work by dispatching workers to the site.
[Brief description of the drawings]
FIG. 1 is a front view schematically showing a hold door closing apparatus according to a first embodiment.
FIG. 2 is a diagram for explaining the operation of the hold door closing device shown in FIG. 1;
FIG. 3 is a front view schematically showing a hold door closing device of a first modified example.
FIG. 4 is a front view schematically showing a hold door closing device of a second modified example.
FIG. 5 is a front view schematically showing a hold door closing device of a third modified example.
FIG. 6 is a front view schematically showing a hold door closing device of a fourth modified example.
FIG. 7 is a front view schematically showing a hold door closing device of a fifth modified example.
FIG. 8 is a front view schematically showing a hold door closing apparatus according to a second embodiment.
FIG. 9 is a front view schematically showing a conventional hold door closing device.
[Explanation of symbols]
1L, 1R Hold door 2 Door hanger 3 Hanger roller 4 Hanger rail 5 Door shoe 6 Hole sill 7 Bracket 8 Closing cable (transmission means)
9 Pulley 10 Weight 10U Upper part of weight 10L Lower part of weight 11 Guide 12L, 12R Pulley 13 Interlocking cable 14, 15 Bracket 20 Coil spring 21 Fixing member 22, 23, 24, 25, 26 Coil spring (elastic elastic member)
30L, 30R Oscillating link mechanism 31 First link 32 Second link 33 Coil spring 34 Weight 100 Hold-a closing device 110 of the first embodiment Hold-a closing device 120 of the first modification 120 Hold-a closing device of the second modification 130 Hold-A Closure Device 140 of the Third Modification Hold-A Closure Device 150 of the Fourth Modification 150 Hold-A Closure Device 200 of the Fifth Modification Hold-A Closure Device of the Second Embodiment

Claims (8)

A device for closing an elevator hold door with a weight,
An elevator holder closing device characterized in that an elastic expansion / contraction member allowing vertical vibration of the weight is interposed in the middle of a transmission means for transmitting gravity acting on the weight to the holder. The transmission means is a flexible linear body that connects the holder and the weight,
2. The elevator holder closing device according to claim 1, wherein the elastic elastic member is interposed between a tip of the linear body and the weight. The transmission means is a flexible linear body that connects the holder and the weight,
2. The elevator holder closing device according to claim 1, wherein the elastic elastic member is interposed between a base end of the linear body and the holder. The transmission means is a flexible linear body that connects the upper part of the upper part and the lower part of the weight divided in the vertical direction and the holder,
2. The elevator holder closing device according to claim 1, wherein the elastic elastic member is interposed between an upper portion and a lower portion of the weight. The elevator hall according to claim 1, wherein the elastic stretchable member is a linear body serving as the transmission means that connects the holder and the weight and has flexibility and elastic stretchability. Door closing device. The transmission means is an oscillating link that is interposed between the holder and the building side and oscillates downward due to gravity acting on the weight and pushes the holder in a closing direction,
2. The elevator holder closing device according to claim 1, wherein the elastic elastic member is interposed between the swing link and the weight. 7. The elevator holder closing device according to claim 1, wherein the elastic elastic member is a coil spring. 7. The elevator holder closing device according to claim 1, wherein the elastic elastic member is a member formed in a linear shape or a column shape from a polymer material.

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