JP4597235B2

JP4597235B2 - Elevator hoisting machine

Info

Publication number: JP4597235B2
Application number: JP2008252126A
Authority: JP
Inventors: 正信伊藤; 章智五十嵐; 清弥伊藤
Original assignee: Hitachi Ltd; Mito Engineering Service Co Ltd
Current assignee: Hitachi Ltd; Mito Engineering Service Co Ltd
Priority date: 2008-09-30
Filing date: 2008-09-30
Publication date: 2010-12-15
Anticipated expiration: 2028-09-30
Also published as: CN101712435A; CN101712435B; HK1141266A1; JP2010083603A

Description

本発明は、昇降路内あるいは機械室内の狭い場所に用いられて好適なエレベーター用巻上機に関する。 The present invention relates to an elevator hoisting machine suitable for use in a narrow place in a hoistway or a machine room.

特許第３７２５９７９号公報（特許文献１）並びに特開２００８−７２４７号公報（特許文献２）に開示されるエレベーター用巻上機に設置される電磁ブレーキは、回動支持される制動腕に保持される制動片が被制動体としてのブレーキドラム外周面の制動面に当接し、制動腕を制動ばねで押圧し、この制動ばねのばね力に抗して制動腕を電磁石などの駆動手段によって駆動して制動付加状態を解除する。 An electromagnetic brake installed in an elevator hoist disclosed in Japanese Patent No. 3725979 (Patent Document 1) and Japanese Patent Application Laid-Open No. 2008-7247 (Patent Document 2) is held by a brake arm that is rotatably supported. The braking piece comes into contact with the braking surface of the outer peripheral surface of the brake drum as a braked body, presses the braking arm with a braking spring, and drives the braking arm against the spring force of the braking spring by driving means such as an electromagnet. To release the braking addition state.

特許文献１においては、制動腕の長さ方向が重力方向の縦方向であり、横方向から制動押圧力が付加される。また特許文献２においては、制動腕の長さ方向が横方向であり、縦の上下方向から制動押圧力が付加される。したがって、特許文献１の場合は、制動腕，制動片，制動ばね及び電磁手段の可動部などの重量がブレーキドラムへの押圧力としてほとんど作用しないが、特許文献２の場合は制動腕，制動片，制動ばね及び駆動手段の可動部などの重量がブレーキドラムへの押圧力として作用する。すなわち、特許文献２の場合、制動ばねのばね力によるブレーキドラム押圧力に対して、上側の制動腕，制動片，制動ばね及び駆動手段の可動部は加押圧力となり、下側の制動腕，制動片，制動ばね及び駆動手段の可動部は減押圧力となる。 In Patent Document 1, the longitudinal direction of the braking arm is the longitudinal direction of the gravity direction, and the braking pressing force is applied from the lateral direction. Moreover, in patent document 2, the length direction of a braking arm is a horizontal direction, and braking pressing force is applied from the vertical up-down direction. Accordingly, in the case of Patent Document 1, the weights of the braking arm, the braking piece, the braking spring, and the movable part of the electromagnetic means hardly act as the pressing force to the brake drum, but in the case of Patent Document 2, the braking arm and the braking piece. The weights of the brake spring and the movable part of the driving means act as a pressing force to the brake drum. That is, in the case of Patent Document 2, the upper brake arm, the brake piece, the brake spring, and the movable part of the driving means are pressed against the brake drum pressing force by the spring force of the brake spring, and the lower brake arm, The brake piece, the brake spring, and the movable part of the drive means have a reduced pressing force.

特許第３７２５９７９号公報Japanese Patent No. 3725979 特開２００８−７２４７号公報JP 2008-7247 A

近年、機械室無のエレベーターが主流となって、昇降路内の昇降路壁と乗かごとの間の隙間に巻上機が設置されるようになった。そのため巻上機はできるだけ狭幅で薄型形状を要求されるようになった。そこで、実用的には扁平電動機を用いて、これに綱車及びブレーキ装置を備えた構成になる。綱車は、径の小さいロープを用いて外径を小さくできるが、制動腕を用いてブレーキドラムの外周を押圧するブレーキ装置は、制動腕の長さが長くなり、強度的に幅や厚さが大きくなって、巻上機の所定幅，厚さに納まらないという問題点がある。 In recent years, elevators without a machine room have become mainstream, and hoisting machines have been installed in the gaps between the hoistway walls in the hoistway and the car. Therefore, the hoisting machine is required to be as narrow and thin as possible. Therefore, practically, a flat electric motor is used, and a sheave and a brake device are provided on the electric motor. The sheave can be reduced in outer diameter by using a rope having a small diameter, but the brake device that presses the outer periphery of the brake drum by using the braking arm has a longer braking arm length and is stronger in width and thickness. However, there is a problem that it becomes too large to fit within the predetermined width and thickness of the hoisting machine.

特許文献１に開示される制動腕の長さ方向が重力方向になっている場合は左右の幅方向から制動押圧力が付加されるので制動片，制動腕の大きさが巻上機の幅方向を大きくする。つまり、ブレーキ装置が平面視で所定幅に設置することが難しい。 When the length direction of the braking arm disclosed in Patent Document 1 is the gravitational direction, the braking pressing force is applied from the left and right width directions, so the size of the braking piece and the braking arm is the width direction of the hoisting machine. Increase That is, it is difficult to install the brake device in a predetermined width in a plan view.

一方、特許文献２のブレーキ装置は、制動腕が横方向に設置されの上下方向の重力方向に制動押圧力が付加されるので、横方向には寸法短縮ができるが、この制動腕，制動片，制動ばね及び駆動装置の可動部などの重量がブレーキドラムへの加減押圧力となる。すなわち、制動ばねのばね力によるブレーキドラム押圧力に対して、上側の制動腕及び制動片は増加押圧力となり、下側の制動腕及び制動片は減少押圧力となる。つまり、上下の制動片で押圧力が不平衡となる。従って、上下の制動片の押圧力が異なってくる。このため、制動片の磨耗量が不平衡となり、押圧力が高くなる方の制動片の磨耗が大きく、頻繁に調整を行うことが必要となる。 On the other hand, in the brake device of Patent Document 2, since the braking arm is installed in the lateral direction and the braking pressing force is applied in the vertical gravity direction, the dimension can be reduced in the lateral direction. The weights of the brake spring and the movable part of the driving device become the pressure for adjusting the brake drum. That is, with respect to the brake drum pressing force due to the spring force of the braking spring, the upper braking arm and the braking piece have an increased pressing force, and the lower braking arm and the braking piece have a decreasing pressing force. That is, the pressing force is unbalanced between the upper and lower braking pieces. Accordingly, the pressing forces of the upper and lower braking pieces are different. For this reason, the amount of wear of the brake piece becomes unbalanced, and the wear of the brake piece having a higher pressing force is large, and frequent adjustment is necessary.

本発明は、上記の問題点を考慮してなされたものであり、電動機及びブレーキ装置も含めて薄型化あるいは小型化できるとともに、安定した制動性能を有するエレベーター用の巻上機を提供する。 The present invention has been made in consideration of the above-described problems, and provides an elevator hoisting machine that can be reduced in thickness or size, including an electric motor and a brake device, and has stable braking performance.

本発明によるエレベーター用巻上機において、電磁ブレーキは、基台に設置され、回転子外周面を制動面にし、この制動面に対向して配置される制動片を備えて回動支持される主制動腕と、制動片が制動面を押圧し回転子を制動付加するように主制動腕のそれぞれに圧力を付加する制動ばねと、主制動腕と並行設置され回動支持される副制動腕と、この主制動腕と副制動腕とを連結する連結手段と、制動ばねのばね力に抗して副制動腕のそれぞれを駆動し制動片の押圧を解除し回転子の制動を解除する電磁手段とを備える。さらに、本電磁ブレーキは、各制動腕の腕長さ方向における基台の幅内でかつ回転子側のロープ端と基台の反回転子側端との間に配置される。これにより、狭幅で、昇降路内あるいは機械室内の狭い場所に用いられて好適なエレベーター用巻上機が得られる。 In the elevator hoisting machine according to the present invention, the electromagnetic brake is installed on the base, the rotor outer peripheral surface is used as a braking surface, and the main brake is rotatably supported with a braking piece disposed opposite to the braking surface. A braking arm, a braking spring that applies pressure to each of the main braking arms so that the braking piece presses the braking surface and applies braking to the rotor, and a sub-braking arm that is installed in parallel with the main braking arm and is pivotally supported. , A connecting means for connecting the main braking arm and the auxiliary braking arm, and an electromagnetic means for driving each of the auxiliary braking arms against the spring force of the braking spring to release the brake piece and release the braking of the rotor With. Further, the electromagnetic brake is disposed within the width of the base in the arm length direction of each braking arm and between the rope end on the rotor side and the counter-rotor side end of the base. As a result, an elevator hoisting machine suitable for use in a narrow space in a hoistway or in a machine room is obtained.

なお、好ましくは、電磁ブレーキの重量で発生する制動片の回転子への押圧力を補正する補正手段を設けるか、又は制動ばねのばね力で押圧力を補正する。補正手段としては、主制動腕又は副制動腕に設けたばね手段を用いても良い。これにより、回転子の制動面に対する制動片の押圧力の不平衡を補正し、制動片磨耗の不平衡が改善できる。 Preferably, a correction means for correcting the pressing force to the rotor of the braking piece generated by the weight of the electromagnetic brake is provided, or the pressing force is corrected by the spring force of the braking spring. As correcting means, spring means provided on the main braking arm or the auxiliary braking arm may be used. Thereby, the imbalance of the pressing force of the brake piece against the braking surface of the rotor can be corrected, and the imbalance of the wear of the brake piece can be improved.

また、好ましくは、副制動腕は電磁手段の出力駆動点である力点に対し連結手段の連結点である作用点の動作方向が反転又は非反転であるとともに、電磁手段の出力は押す方向又は引く方向とする。これにより、制動腕を駆動する電磁手段の配置性が良くなる。 Preferably, the auxiliary braking arm is reversed or non-reversed in the direction of action of the connecting point of the connecting means relative to the force point that is the output driving point of the electromagnetic means, and the output of the electromagnetic means is pushed or pulled. The direction. Thereby, the arrangement of the electromagnetic means for driving the braking arm is improved.

また、好ましくは、主制動腕と副制動腕を連結する連結手段は両方向連結又は一方向連結とする。これにより、主又は副制動腕に設けた補正手段の設置性が良くなる。 Preferably, the connecting means for connecting the main braking arm and the auxiliary braking arm is a two-way connection or a one-way connection. Thereby, the installation property of the correction means provided in the main or auxiliary braking arm is improved.

本発明によれば、ブレーキ装置の安定した制動性能を確保しながら、ブレーキ装置も含めた巻上機全体を薄型化あるいは小型化できる。 According to the present invention, the entire hoisting machine including the brake device can be made thinner or smaller while ensuring stable braking performance of the brake device.

第１の実施形態
本発明による実施形態を図１乃至図２５で説明する。図１は本発明による第１の実施形態であるエレベーター用巻上機の正面図、図２，図３は図１の平面図で電磁ブレーキを平面寸法で所定範囲に配置する説明図、図４，図５は主制動腕と副制動腕とを連結する連結手段の正面図，側面図、図６，図７は図１の巻上機を昇降路内の下部に設置したエレベーターの概略構成の正面図，側面図、図８は図１の巻上機を９０度回転配置した巻上機を示す図、図９は図８の巻上機を昇降路内の上部に設置したエレベーターの概略構成の図６相当図、図１０乃至図２５は連結手段の別な実施形態を示す図である。 First Embodiment An embodiment according to the present invention will be described with reference to FIGS. FIG. 1 is a front view of an elevator hoisting machine according to a first embodiment of the present invention, FIGS. 2 and 3 are plan views of FIG. FIG. 5 is a front view and a side view of the connecting means for connecting the main braking arm and the auxiliary braking arm, and FIGS. 6 and 7 are schematic views of an elevator in which the hoisting machine of FIG. 1 is installed in the lower part of the hoistway. FIG. 8 is a view showing a hoisting machine in which the hoisting machine of FIG. 1 is rotated 90 degrees, and FIG. 9 is a schematic configuration of an elevator in which the hoisting machine of FIG. FIG. 6 and FIG. 10 to FIG. 25 are diagrams showing another embodiment of the connecting means.

図１において、電動機１は外側回転型である。電動機１の基台２は電動機１の固定子３を支持するとともに、回転子４を片持ち軸などによって回転可能に軸支している。回転子４は、扁平な形状を有し、その軸方向の寸法が直径よりも小さい。基台２を含めた巻上機全体についても、回転子４の軸方向の寸法が、回転子の径方向の寸法よりも小さく、薄型の巻上機となっている。電動機１においては、固定子３が回転子４の中で回転子４と対向している。回転子４はこの電動機１の被制動体であり外周面を制動面５としている。綱車６は、回転子４の側面の同一軸上に設けられ、両側に乗かご７及びつり合おもり８を係合するロープ９が巻き掛けられる。電磁ブレーキ１０ａ，１０ｂは、それぞれ回転子４の上部及び下部に配置され、それぞれ独立にブレーキとして機能して回転子４を制動する。巻上機１１は、基台２，電動機１，綱車６及び電磁ブレーキ１０ａ，１０ｂで構成され、基台２が取り付けベースとして昇降路内に設置される。 In FIG. 1, the electric motor 1 is an outer rotation type. The base 2 of the electric motor 1 supports the stator 3 of the electric motor 1 and rotatably supports the rotor 4 by a cantilever shaft or the like. The rotor 4 has a flat shape, and its axial dimension is smaller than the diameter. The entire hoisting machine including the base 2 is also a thin hoisting machine in which the axial dimension of the rotor 4 is smaller than the radial dimension of the rotor. In the electric motor 1, the stator 3 faces the rotor 4 in the rotor 4. The rotor 4 is a body to be braked of the electric motor 1 and has an outer peripheral surface as a braking surface 5. The sheave 6 is provided on the same axis of the side surface of the rotor 4, and a rope 9 that engages the car 7 and the counterweight 8 is wound around the both sides. The electromagnetic brakes 10a and 10b are respectively disposed on the upper and lower portions of the rotor 4, and function as a brake independently to brake the rotor 4. The hoisting machine 11 includes a base 2, an electric motor 1, a sheave 6, and electromagnetic brakes 10a and 10b. The base 2 is installed in a hoistway as an attachment base.

電磁ブレーキ１０ａ，１０ｂの構成は次の通りである。一対の主制動腕１２ａ，１２ｂは、それぞれ回転子４の制動面５に対向して配置される制動片１３ａ，１３ｂを備え、軸１４ａ，１４ｂで回動支持される。本実施形態では主制動腕１２ａ，１２ｂの腕長さ方向が重力方向を縦として横方向になるように配置される。 The configuration of the electromagnetic brakes 10a and 10b is as follows. The pair of main braking arms 12a and 12b includes braking pieces 13a and 13b arranged to face the braking surface 5 of the rotor 4, respectively, and are rotatably supported by shafts 14a and 14b. In this embodiment, the arm length directions of the main braking arms 12a and 12b are arranged so that the gravity direction is vertical and the horizontal direction.

制動ばね１５ａ，１５ｂは、制動片１３ａ，１３ｂが制動面５を押圧し回転子４を制動するように、それぞれ主制動腕１２ａ，１２ｂに圧力を付加する。すなわち、制動ばね１５ａ，１５ｂは、基台２に設けた固定部材１６に対して、ばねロッド１７を介して装着され、ばね押え１８及びナット１９で固定される。ナット１９を回転して制動ばね１５ａ，１５ｂのばね力を調整する。 The braking springs 15a and 15b apply pressure to the main braking arms 12a and 12b so that the braking pieces 13a and 13b press the braking surface 5 and brake the rotor 4, respectively. That is, the braking springs 15 a and 15 b are attached to the fixing member 16 provided on the base 2 via the spring rod 17 and fixed by the spring retainer 18 and the nut 19. The nut 19 is rotated to adjust the spring force of the braking springs 15a and 15b.

副制動腕２０ａ，２０ｂは、主制動腕１２ａ，１２ｂと並行して配置され軸２１ａ，２１ｂで回動支持され、連結手段２２ａ，２２ｂでそれぞれの主制動腕１２ａ，１２ｂと連結される。副制動腕２０ａ，２０ｂは後述する電磁手段の駆動点である力点と連結手段２２ａ，２２ｂの連結点である作用点の動き方向が非反転の同一方向である。 The auxiliary braking arms 20a and 20b are arranged in parallel with the main braking arms 12a and 12b, are rotatably supported by shafts 21a and 21b, and are connected to the main braking arms 12a and 12b by connecting means 22a and 22b. The auxiliary braking arms 20a and 20b are in the same direction in which the direction of movement of a force point which is a driving point of electromagnetic means described later and a point of action which is a connection point of the connecting means 22a and 22b are non-inverted.

電磁手段２３ａ，２３ｂは、主制動腕１２ａ，１２ｂを押圧する制動ばね１５ａ，１５ｂのばね力に抗して副制動腕２０ａ，２０ｂのそれぞれを矢印Ｙ１のような押す方向に駆動し、連結手段２２ａ，２２ｂを介して主制動腕１２ａ，１２ｂを駆動し制動片１３ａ，１３ｂの押圧を解除して回転子４の制動を解除する。 The electromagnetic means 23a, 23b drive each of the auxiliary braking arms 20a, 20b in the pushing direction as indicated by the arrow Y1 against the spring force of the braking springs 15a, 15b that presses the main braking arms 12a, 12b, and the connecting means. The main braking arms 12a and 12b are driven via 22a and 22b to release the pressure on the braking pieces 13a and 13b, thereby releasing the braking of the rotor 4.

電磁手段２３ａ，２３ｂは図示を省略する継鉄と電磁コイルからなる電磁石２４と、この電磁石２４に電磁吸引される鉄片２５とからなり、電磁石２４，鉄片２５の一方を基台２に設けた固定部材２６に固定し、他方を可動とする。この鉄片２５と結合するロッド２７を副制動腕２０ａ，２０ｂに螺結した押しボルト２８に当接させ、電磁石２４の付勢でロッド２７が押しボルト２８を押して副制動腕２０ａ，２０ｂを駆動する。そして、この押しボルト２８の出し入れ調整でロッド２７の動作ストロークを調整するとともに、制動片１３ａ，１３ｂと制動面５との間隙を調整する。なお、この図では鉄片２５を可動にして副制動腕２０ａ，２０ｂを駆動したが、逆に電磁石２４を可動、鉄片２５を固定にしても良い。電磁石２４と鉄片２５間に設けられるばね２９は、電磁手段２３ａ，２３ｂの固定部分である電磁石２４と可動部分である鉄片２５間に緊迫力を与え、がたつきを防止する。 The electromagnetic means 23a, 23b includes an electromagnet 24 composed of a yoke and an electromagnetic coil (not shown) and an iron piece 25 that is electromagnetically attracted to the electromagnet 24, and one of the electromagnet 24 and the iron piece 25 is fixed to the base 2. It fixes to the member 26 and makes the other movable. The rod 27 coupled to the iron piece 25 is brought into contact with a push bolt 28 screwed to the sub brake arms 20a and 20b, and the rod 27 pushes the push bolt 28 by the urging of the electromagnet 24 to drive the sub brake arms 20a and 20b. . The operation stroke of the rod 27 is adjusted by adjusting the insertion and removal of the push bolt 28, and the gap between the braking pieces 13a, 13b and the braking surface 5 is adjusted. In this figure, the iron piece 25 is moved and the auxiliary braking arms 20a and 20b are driven, but conversely, the electromagnet 24 may be moved and the iron piece 25 may be fixed. A spring 29 provided between the electromagnet 24 and the iron piece 25 applies a pressing force between the electromagnet 24 which is a fixed part of the electromagnetic means 23a and 23b and the iron piece 25 which is a movable part, and prevents rattling.

電磁ブレーキ１０ａ，１０ｂは制動付加手段としての制動ばね１５ａ，１５ｂ、制動解除手段としての電磁手段２３ａ，２３ｂ及び共役部品の制動腕，制動片１３ａ，１３ｂから構成されて、独立に機能，動作する電磁ブレーキが被制動体としての回転子４の上部と下部に計二組設けられており、一組が故障しても他組で制動付加，制動解除の動作ができる二重系になっている。 The electromagnetic brakes 10a and 10b are composed of braking springs 15a and 15b as braking applying means, electromagnetic means 23a and 23b as braking releasing means, braking arms of conjugate parts, braking pieces 13a and 13b, and function and operate independently. Two sets of electromagnetic brakes are provided on the upper and lower parts of the rotor 4 as a braked body, and even if one set breaks down, it is a double system that can perform braking addition and brake releasing operations in the other set. .

センサ３０ａ，３０ｂは、それぞれ制動片１３ａ，１３ｂを備える主制動腕１２ａ，１２ｂの動作をチェックする。同様に、センサ３１ａ，３１ｂは、それぞれ副制動腕２０ａ，２０ｂの動作をチェックする。これらのセンサ３０ａ，３０ｂ，３１ａ，３１ｂとして例えばマイクロスイッチなどが用いられ、制動付加状態でＯＦＦ又はＯＮ、制動解除状態では制動付加状態と逆にＯＮ又はＯＦＦとなるように設定され、このＯＮ，ＯＦＦ信号で電磁ブレーキ１０ａ，１０ｂの動作が正常，異常の判断や電磁石２３ａ，２３ｂの電磁コイル（図示を省略）への通電制御をするようになっている。 The sensors 30a and 30b check the operation of the main braking arms 12a and 12b including the braking pieces 13a and 13b, respectively. Similarly, the sensors 31a and 31b check the operation of the auxiliary braking arms 20a and 20b, respectively. As these sensors 30a, 30b, 31a, 31b, for example, microswitches or the like are used, which are set to be OFF or ON in the braking applied state and set to ON or OFF in the braking released state, contrary to the braking applied state. With the OFF signal, the operation of the electromagnetic brakes 10a, 10b is judged as normal or abnormal, and energization control of the electromagnetic coils (not shown) of the electromagnets 23a, 23b is controlled.

ところで、上側の電磁ブレーキ１０ａでは、主及び副制動腕１２ａ，２０ａ，制動片１３ａ，制動ばね１５ａ，連結手段２２ａ，電磁手段２３ａの可動部分などの重量によって回転子４への制動押圧力が増加する。同様に、下側の電磁ブレーキ１０ｂでは主及び副制動腕１２ｂ，２０ｂ，制動片１３ｂ，制動ばね１５ｂ，連結手段２２ｂ，電磁手段２３ｂの可動部分などの重量によって制動押圧力が減少する。この押圧力の増減を低減するように補正する押圧力補正手段を設けている。 By the way, in the upper electromagnetic brake 10a, the brake pressing force to the rotor 4 is increased by the weights of the main and auxiliary brake arms 12a and 20a, the brake piece 13a, the brake spring 15a, the connecting means 22a, the movable part of the electromagnetic means 23a, and the like. To do. Similarly, in the lower electromagnetic brake 10b, the braking pressing force is reduced by the weights of the main and auxiliary braking arms 12b and 20b, the braking piece 13b, the braking spring 15b, the connecting means 22b, the movable part of the electromagnetic means 23b, and the like. A pressing force correcting means for correcting so as to reduce the increase / decrease of the pressing force is provided.

すなわち、ばね手段３２ａ，３２ｂを含む押圧力補正手段３３ａ，３３ｂによって、主制動腕１２ａ，１２ｂに関わる制動押圧力が補正される。これにより、主制動腕１２ａ，１２ｂ，制動片１３ａ，１３ｂ，制動ばね１５ａ，１５ｂ，連結手段２２ａ，２２ｂなどの重量による軸１４ａ，１４ｂに関してのモーメントで生じる制動片１３ａ，１３ｂの増加押圧力又は減少押圧力が相殺される。図１では、軸１４ａ，１４ｂに関し主制動腕１２ａ，１２ｂの重心Ｇｍａ，Ｇｍｂと同一側にこの主制動腕１２ａ，１２ｂを矢印Ｙｍのように引上げる方向にばね手段３２ａ，３２ｂのばね力を付加している。ばね手段３２ａ，３２ｂの取り付け構造としては、例えば制動ばね１５ａ，１５ｂと同様の構造が用いられる。図示を省略するが、ばね手段３２ａ，３２ｂは、軸１４ａ，１４ｂに関し主制動腕１２ａ，１２ｂの重心Ｇｍａ，Ｇｍｂと反対側に主制動腕１２ａ，１２ｂを延長して、この延長部分にばね手段３２ａ，３２ｂのばね力を引下げる方向に付加したり、又は単純に質量を付加して重量としたりしても良い。 That is, the braking pressure force relating to the main braking arms 12a and 12b is corrected by the pressing force correction means 33a and 33b including the spring means 32a and 32b. As a result, the increased pressing force of the braking pieces 13a, 13b generated by the moment about the shafts 14a, 14b due to the weight of the main braking arms 12a, 12b, braking pieces 13a, 13b, braking springs 15a, 15b, connecting means 22a, 22b, etc. Decreasing pressing force is offset. In FIG. 1, the spring force of the spring means 32a, 32b is pulled in the direction of pulling up the main braking arms 12a, 12b as indicated by the arrow Ym on the same side as the center of gravity Gma, Gmb of the main braking arms 12a, 12b with respect to the shafts 14a, 14b. It is added. As a mounting structure for the spring means 32a and 32b, for example, the same structure as the brake springs 15a and 15b is used. Although not shown in the drawings, the spring means 32a and 32b extend the main braking arms 12a and 12b on the opposite side of the center of gravity Gma and Gmb of the main braking arms 12a and 12b with respect to the shafts 14a and 14b, and spring means are provided at the extended portions. The spring force of 32a and 32b may be added in the direction of lowering, or the mass may be simply added to be the weight.

同様に、ばね手段３４ａ，３４ｂを含む押圧力補正手段３５ａ，３５ｂによって、副制動腕２０ａ，２０ｂに関わる制動押圧力が補正される。これにより、副制動腕２０ａ，２０ｂ，電磁手段２３ａ，２３ｂの可動部分などの重量による軸２１ａ，２１ｂに関してのモーメントで生じる力が連結手段２２ａ，２２ｂを介して制動片１３ａ，１３ｂの増加押圧力又は減少押圧力が相殺される。図１では、軸２１ａ，２１ｂに関し制動腕の重心Ｇｓａ，Ｇｓｂと同一側にこの副制動腕２０ａ，２０ｂを矢印Ｙｓのように引上げる方向にばね手段３４ａ，３４ｂのばね力を付加している。図示を省略するが、ばね手段３４ａ，３４ｂは軸２１ａ，２１ｂに関し副制動腕２０ａ，２０ｂの重心Ｇｓａ，Ｇｓｂと反対側に副制動腕２０ａ，２０ｂを延長して、この延長部分にばね手段３４ａ，３４ｂのばね力を引下げる方向に付加したり、又は単純に質量を付加して重量としたりしても良い。 Similarly, the braking force relating to the auxiliary braking arms 20a and 20b is corrected by the pressing force correcting means 35a and 35b including the spring means 34a and 34b. As a result, the force generated by the moment about the shafts 21a and 21b due to the weights of the auxiliary braking arms 20a and 20b and the movable parts of the electromagnetic means 23a and 23b is increased by the braking pieces 13a and 13b via the connecting means 22a and 22b. Alternatively, the reduced pressing force is canceled out. In FIG. 1, the spring force of the spring means 34a and 34b is applied to the shafts 21a and 21b on the same side as the center of gravity Gsa and Gsb of the braking arm in the direction of pulling up the auxiliary braking arms 20a and 20b as indicated by the arrow Ys. . Although not shown, the spring means 34a, 34b extend the auxiliary braking arms 20a, 20b on the opposite side of the center of gravity Gsa, Gsb of the auxiliary braking arms 20a, 20b with respect to the shafts 21a, 21b, and the spring means 34a is extended to this extended portion. , 34b may be added in the direction of lowering the spring force, or the mass may be simply added to the weight.

従って、ばね手段３４ａ，３４ｂにより、図１の上及び下側の主及び副制動腕１２ａ，１２ｂ，２０ａ，２０ｂに関わる付属部品の重量による制動押圧力が生じないよう、又は上及び下側の制動押圧力が不平衡にならないように補正され、制動ばね１５ａ，１５ｂによって上及び下側ともにほぼ同じばね力設定で所定の制動押圧力が付加されるようになる。 Accordingly, the spring means 34a and 34b do not cause a braking pressing force due to the weight of the accessories related to the upper and lower main and sub brake arms 12a, 12b, 20a and 20b in FIG. The braking pressing force is corrected so as not to become unbalanced, and a predetermined braking pressing force is applied by the braking springs 15a and 15b with substantially the same spring force setting on the upper side and the lower side.

上記のように、図１の実施形態では、主及び副制動腕１２ａ，１２ｂ，２０ａ，２０ｂを腕長さ方向が重力方向を縦方向として横方向に配置すると、主及び副制動腕１２ａ，１２ｂ，２０ａ，２０ｂに関わる付属部品の重量によって、上側の制動片１３ａでは制動押圧力が増加、下側の制動片１３ｂでは制動押圧力が減少して付加されることを説明したが、この電磁ブレーキ１０ａ，１０ｂの構成で主及び副制動腕１２ａ，１２ｂ，２０ａ，２０ｂの腕長さ方向が重力方向と任意の角度となる場合は、付属部品重量による制動押圧力をこの任意の角度による重力方向の分力を考慮すれば良い。例えば、制動腕の腕長さ方向が重力方向の縦方向に配置されている場合は、角度が０であるから主及び副制動腕１２ａ，１２ｂ，２０ａ，２０ｂに関わる付属部品の重量の制動押圧力への分力としてほとんど生じないことになる。 As described above, in the embodiment of FIG. 1, when the main and auxiliary braking arms 12a, 12b, 20a and 20b are arranged in the lateral direction with the arm length direction being the vertical direction of gravity, the main and auxiliary braking arms 12a and 12b are arranged. , 20a and 20b, the brake pressing force is increased in the upper braking piece 13a and the braking pressing force is decreased and added in the lower braking piece 13b. When the arm length direction of the main and auxiliary braking arms 12a, 12b, 20a, 20b is an arbitrary angle with the direction of gravity in the configuration of 10a, 10b, the braking pressing force due to the weight of the accessory part is determined as the direction of gravity at the arbitrary angle. Considering the component power of For example, when the arm length direction of the braking arm is arranged in the longitudinal direction of the gravity direction, the angle is 0, so that the weight of the accessory related to the main and auxiliary braking arms 12a, 12b, 20a, 20b is reduced. It hardly occurs as a component force to pressure.

また、図２の平面視で示すように、巻上機１１は昇降路壁と乗かご７との間の狭いスペースに設置するために、電磁ブレーキ１０ａ，１０ｂはロープ９の延在方向が図の紙面と垂直方向にあるので、このロープ９と接触しないように配置される。すなわち、図２では、主制動腕１２ａ，１２ｂと副制動腕２０ａ，２０ｂとが、これら制動腕の腕長さ方向線が互いに平行になるようにかつ回転子４の回転面に平行になるように配置される。そして、電磁ブレーキ１０ａ，１０ｂと主制動腕１２ａ，１２ｂと副制動腕２０ａ，２０ｂは、制動腕の腕長さ方向における基台２の幅（Ｂ）内かつ回転子４側のロープ９端から基台２の反回転子４側端面との間（Ｗ）の範囲内に配置される。 2, the hoisting machine 11 is installed in a narrow space between the hoistway wall and the car 7, so that the electromagnetic brakes 10a and 10b have a direction in which the rope 9 extends. Is arranged so as not to contact the rope 9. That is, in FIG. 2, the main braking arms 12a and 12b and the auxiliary braking arms 20a and 20b are arranged so that the arm length direction lines of these braking arms are parallel to each other and parallel to the rotation surface of the rotor 4. Placed in. The electromagnetic brakes 10a, 10b, the main braking arms 12a, 12b, and the auxiliary braking arms 20a, 20b are within the width (B) of the base 2 in the arm length direction of the braking arm and from the end of the rope 9 on the rotor 4 side. It arrange | positions in the range between the counter-rotor 4 side end surfaces of the base 2 (W).

また、図３の平面視に示すように、例えば電磁手段２３ａ，２３ｂが大きくなってロープ９側にはみ出る場合は、図２の場合とは異なり、平面視で主制動腕１２ａ，１２ｂに対して副制動腕２０ａ，２０ｂの腕長さ方向線が平行ではなく角度を形成して配置され、電磁ブレーキ１０ａ，１０ｂ全体としては基台２の幅（Ｂ）内かつ回転子４側のロープ９端から基台２の反回転子４側端面との間（Ｗ）に配置される。 Further, as shown in the plan view of FIG. 3, for example, when the electromagnetic means 23a and 23b become large and protrude to the rope 9 side, unlike the case of FIG. 2, the plan view shows the main braking arms 12a and 12b. The auxiliary brake arms 20a and 20b are arranged such that the arm length direction lines are not parallel but form an angle, and the electromagnetic brakes 10a and 10b as a whole are within the width (B) of the base 2 and the end of the rope 9 on the rotor 4 side. To the opposite end surface of the base 2 on the side opposite to the rotor 4 (W).

図２及び図３に示すように電磁ブレーキと主及び副制動腕を配置することにより、ブレーキを含めた巻上機全体を薄型化し小型化することができる。 By arranging the electromagnetic brake and the main and auxiliary braking arms as shown in FIGS. 2 and 3, the entire hoisting machine including the brake can be made thinner and smaller.

図４及び図５に、図１における上側の主制動腕１２ａと副制動腕２０ａ及び連結手段２２ａを示す。下側の連結手段２２ｂは上側と図示が上下逆になるだけであるので説明を省略する。図４は一部断面視の正面図、図５は図４のＡ−Ａ視図である。 4 and 5 show the upper main braking arm 12a, the auxiliary braking arm 20a and the connecting means 22a in FIG. The lower connecting means 22b is only shown upside down with respect to the upper side, and the description thereof is omitted. 4 is a partially sectional front view, and FIG. 5 is an AA view of FIG.

主制動腕１２ａと副制動腕２０ａとを両側から一対のブラケット３６で挟み、このブラケット３６の一端側は主制動腕１２ａに設けた孔３７にピン３８を挿着し回動支持する。この際、孔３７に軸受３９を装着すると滑らかな回動となる。そして、ブラケット３６の他端側は副制動腕２０ａの表面に設けた円弧状の窪み４０にブラケット３６を通してピン４１を挿着する。この際、副制動腕２０ａのピンが腕方向に可動できるように副制動腕２０ａの円弧状の窪みの曲率半径Ｒはピン４１の半径ｒより大きくなっている。そして、ブラケット３６の他端部側が窪み部から外れないようにピンに対してピン押え４２が設けられている。 The main braking arm 12a and the auxiliary braking arm 20a are sandwiched between a pair of brackets 36 from both sides, and one end of the bracket 36 is rotatably supported by inserting a pin 38 into a hole 37 provided in the main braking arm 12a. At this time, if the bearing 39 is mounted in the hole 37, the rotation is smooth. And the other end side of the bracket 36 inserts the pin 41 through the bracket 36 in the circular-arc shaped recess 40 provided in the surface of the subbraking arm 20a. At this time, the radius of curvature R of the arc-shaped depression of the auxiliary braking arm 20a is larger than the radius r of the pin 41 so that the pin of the auxiliary braking arm 20a can move in the arm direction. And the pin retainer 42 is provided with respect to the pin so that the other end part side of the bracket 36 may not remove | deviate from a hollow part.

また、主制動腕１２ａと副制動腕２０ａとの間に、ばね４３が設けられ、両者間に緊迫力を与えて、がたつきを抑制している。なお、連結状態を逆にして、主制動腕１２ａに曲率半径の窪み４０、副制動腕２０ａに孔３７を設けてピン３８，４１を挿着しても良い。 In addition, a spring 43 is provided between the main braking arm 12a and the auxiliary braking arm 20a, and a tight force is applied between them to suppress rattling. It should be noted that the connection state may be reversed, and the depressions 40 having a radius of curvature may be provided in the main braking arm 12a and the holes 37 may be provided in the auxiliary braking arm 20a, and the pins 38 and 41 may be inserted.

要するに、この連結手段２２ａの構成は、主制動腕１２ａと副制動腕２０ａの連結状態は両者が拡げられる方向に連結、両者が狭められる方向に非連結となる一方向連結である。 In short, the configuration of the connecting means 22a is a one-way connection in which the main braking arm 12a and the auxiliary braking arm 20a are connected in a direction in which both are expanded and disconnected in a direction in which both are narrowed.

本実施形態の巻上機は図６，図７に示すようにエレベーター昇降路に設置される。図６は昇降路の正面図、図７は図６の側面図を示す。すなわち、巻上機１１は昇降路ＥＶＳ下部で乗かご７と昇降路壁ＥＶＷとの間に設置され、乗かご７及びつり合おもり８を連結する主ロープ９が綱車６に巻き掛けられる。前述したように巻上機１１は狭い場所に設置するために、薄型にするとともに、この巻上機１１に装着される電磁ブレーキ１０ａ，１０ｂは主ロープ９や乗かご７，つり合おもり８などの昇降体と接触しないように配置する。 The hoisting machine of this embodiment is installed in an elevator hoistway as shown in FIGS. 6 is a front view of the hoistway, and FIG. 7 is a side view of FIG. That is, the hoisting machine 11 is installed between the car 7 and the hoistway wall EVW at the lower part of the hoistway EVS, and the main rope 9 that connects the car 7 and the counterweight 8 is wound around the sheave 6. As described above, the hoisting machine 11 is made thin so as to be installed in a narrow place, and the electromagnetic brakes 10a and 10b attached to the hoisting machine 11 include the main rope 9, the car 7, the counterweight 8, and the like. Arrange them so that they do not come into contact with the elevator.

また、この巻上機１１は昇降路上部に設置して用いることができる。すなわち、図１で示した巻上機１１を左９０度又は右９０度回転して、図８では左９０度回転した場合で示すが、重力方向を縦として制動腕の腕長さ方向が縦の縦置きにする。この巻上機１１を図９に示すように、昇降路上部に設置してエレベーターを構成する。これにより、巻上機１１の高さが低くなるので昇降路ＥＶＳ上部の省スペース化が図れる。 Moreover, this hoisting machine 11 can be installed and used in the upper part of a hoistway. That is, the hoisting machine 11 shown in FIG. 1 is rotated 90 degrees to the left or 90 degrees to the right, and FIG. 8 shows the case where the hoisting machine 11 is rotated 90 degrees to the left. Set up vertically. As shown in FIG. 9, the hoisting machine 11 is installed on the upper part of the hoistway to constitute an elevator. Thereby, since the height of the hoisting machine 11 becomes low, space saving of the upper part of the hoistway EVS can be achieved.

要するに、この巻上機１１は重力方向を縦として制動腕の腕長さ方向が横の横置き、又は腕長さ方向が縦の縦置きに設置でき、昇降路ＥＶＳの下部、あるいは上部に設置して用いることができる。なお、この際、主制動腕及び副制動腕が縦方向に設置されるので、それぞれに設けられる押圧力補正手段３３ａ，３３ｂ，３５ａ，３５ｂは省略することができる。 In short, the hoisting machine 11 can be installed in the horizontal direction where the arm length direction of the braking arm is horizontal or the vertical direction of the arm length direction with the gravity direction as the vertical direction, and is installed below or above the hoistway EVS. Can be used. At this time, since the main braking arm and the auxiliary braking arm are installed in the vertical direction, the pressing force correcting means 33a, 33b, 35a, 35b provided respectively can be omitted.

次に、図１０乃至図２５に基づいて、連結手段２２ａの別な形態を示し、このうち、図１０乃至図１７は前記図４，図５と同じ一方向連結構成の場合、図１８乃至図２５は前記後述する両方向連結構成の場合である。なお、図４，図５と同様に、上側の連結手段２２ａを説明し下側の連結手段２２ｂは説明を省略する。 Next, another form of the connecting means 22a is shown based on FIG. 10 to FIG. 25. Of these, FIG. 10 to FIG. 17 show the same one-way connecting structure as FIG. 4 and FIG. Reference numeral 25 denotes the case of the bidirectional connection structure described later. 4 and 5, the upper connecting means 22a will be described, and the lower connecting means 22b will not be described.

図１０，図１１が図４，図５と異なる点は、主制動腕１２ａと副制動腕２０ａとを両側から挟むブラケット４４にあり、このブラケット４４は凹状に一体形成し、凹状の底部４５を上側にして図４，図５で示したピン押え４２にしたことである。図４，図５と同一部分については同一符号を付して説明を省略する。この図ではブラケット４４を逆凹状に配置して凹状の底部を副制動腕２０ａ側としている。また、主制動腕１２ａと副制動腕２０ａとの間に、ばね４３が設けられ、両者間に緊迫力を与えてがたつきを抑制している。この構成により、図４，図５のピン押え４２が省略できるとともに、２個のブラケット４４が一体形成できる。 10 and 11 are different from FIGS. 4 and 5 in a bracket 44 that sandwiches the main braking arm 12a and the auxiliary braking arm 20a from both sides. The bracket 44 is integrally formed in a concave shape, and a concave bottom portion 45 is formed. This is the pin retainer 42 shown in FIGS. 4 and 5 on the upper side. The same parts as those in FIGS. 4 and 5 are denoted by the same reference numerals and description thereof is omitted. In this figure, the bracket 44 is disposed in a reverse concave shape, and the concave bottom portion is on the side of the auxiliary braking arm 20a. In addition, a spring 43 is provided between the main braking arm 12a and the auxiliary braking arm 20a, and a tight force is applied between the two to suppress rattling. With this configuration, the pin retainer 42 of FIGS. 4 and 5 can be omitted, and the two brackets 44 can be integrally formed.

図１２，図１３が図１０，図１１と異なる点は、凹状のブラケット４４と副制動腕２０ａとの係合構造にある。図１０，図１１と同一部分については同一符号を付して説明を省略する。この凹状のブラケット４４の一方の開放側を主制動腕１２ａとピン３８で回動支持し、凹状のブラケット４４の底側４５に螺結しナット４７で固定する押しボルト４８に副制動腕２０ａを当接させる。また、図１０，図１１と同様に、主制動腕１２ａと副制動腕２０ａとの間に、ばね４３が設けられる。この構成により、押しボルト４８の出し入れで主制動腕１２ａと副制動腕２０ａの間隔が調整できる。 12 and 13 are different from FIGS. 10 and 11 in the engagement structure between the concave bracket 44 and the auxiliary braking arm 20a. The same parts as those in FIG. 10 and FIG. One open side of the concave bracket 44 is pivotally supported by the main brake arm 12 a and the pin 38, and the sub brake arm 20 a is screwed to the bottom side 45 of the concave bracket 44 and fixed by the nut 47. Make contact. Similarly to FIGS. 10 and 11, a spring 43 is provided between the main braking arm 12a and the auxiliary braking arm 20a. With this configuration, the distance between the main braking arm 12a and the auxiliary braking arm 20a can be adjusted by inserting and removing the push bolt 48.

図１４，図１５が前記図４，図５と異なる点は、ブラケット３６と主制動腕１２ａとの連結構造にあり、図４，図５のブラケット３６と副制動腕２０ａとの連結構造と同じにしたことである。図４，図５と同一部分については同一符号を付して説明を省略する。また、図４，図５と同様に、主制動腕１２ａと副制動腕２０ａとの間に、ばね４３が設けられる。この構成により、主制動腕１２ａの孔加工及び軸受３９を不要にできるとともに、ピン３８，４１及びピン押え４２などの部品が共通化できる。 14 and 15 differ from FIGS. 4 and 5 in the connection structure between the bracket 36 and the main braking arm 12a, which is the same as the connection structure between the bracket 36 and the auxiliary braking arm 20a in FIGS. It is that. The same parts as those in FIGS. 4 and 5 are denoted by the same reference numerals and description thereof is omitted. 4 and 5, a spring 43 is provided between the main braking arm 12a and the auxiliary braking arm 20a. With this configuration, the drilling of the main braking arm 12a and the bearing 39 can be made unnecessary, and parts such as the pins 38 and 41 and the pin presser 42 can be shared.

図１６，図１７が図４，図５と異なる点は、主制動腕１２ａと副制動腕２０ａとを連結ロッド４９で連結したことである。図４，図５と同一部分については同一符号を付して説明を省略する。主制動腕１２ａと副制動腕２０ａに上下方向に設けた孔５０，５１に前記連結ロッド４９を貫通して結合する。この際、連結ロッド４９の両端は凹面座５２及び凸面座５３で構成した球面座５４を介して主制動腕１２ａ，副制動腕２０ａとが連結され、ナット５５で固定する。また、図４，図５と同様に、必要に応じて主制動腕１２ａと副制動腕２０ａとの間に、ばね４３が設けられる。この構成により、連結手段２２ａが簡単になるとともに、球面座５４を装着することによって連結ロッド４９に加わる曲げ力を緩和できる。 16 and 17 are different from FIGS. 4 and 5 in that the main braking arm 12 a and the auxiliary braking arm 20 a are connected by the connecting rod 49. The same parts as those in FIGS. 4 and 5 are denoted by the same reference numerals and description thereof is omitted. The connecting rod 49 is connected through holes 50 and 51 provided in the vertical direction in the main braking arm 12a and the auxiliary braking arm 20a. At this time, both ends of the connecting rod 49 are connected to the main braking arm 12 a and the auxiliary braking arm 20 a via the spherical seat 54 constituted by the concave seat 52 and the convex seat 53, and are fixed by the nut 55. 4 and 5, a spring 43 is provided between the main braking arm 12a and the auxiliary braking arm 20a as necessary. With this configuration, the connecting means 22a is simplified, and the bending force applied to the connecting rod 49 can be reduced by mounting the spherical seat 54.

図１８，図１９が図４，図５と異なる点は、ブラケット３６と副制動腕２０ａとの連結構造にある。図４，図５と同一部分については同一符号を付して説明を省略する。図４，図５のブラケット３６と主制動腕１２ａとの連結構造と同じにし、主，副制動腕１２ａ，２０ａの両者が拡げられる方向及び狭められる方向ともに連結状態となる両方向連結となる。また、図４，図５と同様に、主制動腕１２ａと副制動腕２０ａとの間に、ばね４３が設けられる。この構成により、孔加工及びピン３８，４１，軸受３９などの部品が共通化できる。 18 and 19 differ from FIGS. 4 and 5 in the connection structure of the bracket 36 and the auxiliary braking arm 20a. The same parts as those in FIGS. 4 and 5 are denoted by the same reference numerals and description thereof is omitted. 4 and 5 is the same as the connection structure between the bracket 36 and the main braking arm 12a, and the two-way connection is established in which both the main and auxiliary braking arms 12a, 20a are connected in both the expanding direction and the narrowing direction. 4 and 5, a spring 43 is provided between the main braking arm 12a and the auxiliary braking arm 20a. With this configuration, holes and parts such as the pins 38 and 41 and the bearing 39 can be shared.

図２０，図２１が図１８，図１９と異なる点は、主制動腕１２ａと副制動腕２０ａとを１本のピン５６で連結する構造にある。図１８，図１９と同一部分については同一符号を付して説明を省略する。主制動腕１２ａと副制動腕２０ａとを連結する部分に、主制動腕１２ａ，副制動腕２０ａそれぞれに孔５７，５８を有する突部５９，６０を設け、この両者の孔５７，５８部にピン５６を貫通装着する。この際、孔５７，５８部のいずれかに軸受６１を装着してピン５６に対して滑らかに回動できるようにする。また、図１８，図１９と同様に、必要に応じて主制動腕１２ａと副制動腕２０ａとの間に、ばね４３が設けられる。この構成により、連結手段２２ａの構造が簡単化できる。 20 and 21 are different from FIGS. 18 and 19 in the structure in which the main braking arm 12a and the auxiliary braking arm 20a are connected by a single pin 56. FIG. The same parts as those in FIGS. 18 and 19 are denoted by the same reference numerals and description thereof is omitted. Protrusions 59 and 60 having holes 57 and 58 are provided in the main braking arm 12a and the auxiliary braking arm 20a, respectively, at the portion connecting the main braking arm 12a and the auxiliary braking arm 20a. The pin 56 is inserted through. At this time, the bearing 61 is attached to either of the holes 57 and 58 so as to be smoothly rotated with respect to the pin 56. Similarly to FIGS. 18 and 19, a spring 43 is provided between the main braking arm 12a and the auxiliary braking arm 20a as necessary. With this configuration, the structure of the connecting means 22a can be simplified.

図２２，図２３が図２０，図２１と異なる点は、図１０，図１１で説明した凹状のブラケット６２を副制動腕２０ａに装着しボルト６３で固定し、この凹状のブラケット６２に設けた孔６４と主制動腕１２ａの突部５９の孔６５とをピン５６で貫通装着することである。図２０，図２１と同一部分については同一符号を付して説明を省略する。この際、孔６４，６５部のいずれかに軸受６６を装着してピンに対して滑らかに回動できるようにする。また、図２０，図２１と同様に、必要に応じて主制動腕１２ａと副制動腕２０ａとの間に、ばね４３が設けられる。この構成により、図２０，図２１で示した副制動腕２０ａの孔５７を有する突部５９が不要となり副制動腕２０ａの構造が簡単化できる。 FIGS. 22 and 23 differ from FIGS. 20 and 21 in that the concave bracket 62 described in FIGS. 10 and 11 is mounted on the auxiliary braking arm 20a and fixed with a bolt 63, and is provided on the concave bracket 62. The hole 64 and the hole 65 of the protrusion 59 of the main braking arm 12 a are to be fitted through with a pin 56. The same parts as those in FIG. 20 and FIG. At this time, a bearing 66 is attached to either of the holes 64 and 65 so that it can be smoothly rotated with respect to the pin. Similarly to FIGS. 20 and 21, a spring 43 is provided between the main braking arm 12a and the auxiliary braking arm 20a as necessary. With this configuration, the protrusion 59 having the hole 57 of the auxiliary braking arm 20a shown in FIGS. 20 and 21 is not required, and the structure of the auxiliary braking arm 20a can be simplified.

図２４，図２５が前記図２２，図２３と異なる点は、孔６７を有する凹状ブラケット６８を二組用い、それぞれ主制動腕１２ａ及び副制動腕２０ａに凹状ブラケット６８の開放側を向い合わせて装着しボルト６３で固定して、この両者の凹状ブラケット６８の孔にピン５６で貫通装着することである。図２２，図２３と同一部分については同一符号を付して説明を省略する。この際、ブラケット６８のいずれかの孔６７部に軸受６９を装着するとピン５６に対して滑らかに回動できるようになる。また、図２２，図２３と同様に、主制動腕１２ａと副制動腕２０ａ，２０ｂとの間に、ばね４３が設けられる。この構成により、図２２，図２３で示した主制動腕１２ａの孔６５を有する突部５９が不要となり主制動腕１２ａの構造が簡単化できる。 24 and 25 differ from FIGS. 22 and 23 in that two sets of concave brackets 68 having holes 67 are used, and the open side of the concave brackets 68 faces the main braking arm 12a and the auxiliary braking arm 20a, respectively. It is mounted and fixed with bolts 63, and is inserted through the holes of the concave brackets 68 with pins 56. The same parts as those in FIGS. 22 and 23 are denoted by the same reference numerals, and description thereof is omitted. At this time, when the bearing 69 is mounted in any hole 67 portion of the bracket 68, the pin 56 can be smoothly rotated. Similarly to FIGS. 22 and 23, a spring 43 is provided between the main braking arm 12a and the auxiliary braking arms 20a and 20b. With this configuration, the protrusion 59 having the hole 65 of the main braking arm 12a shown in FIGS. 22 and 23 becomes unnecessary, and the structure of the main braking arm 12a can be simplified.

ところで、主及び副制動腕１２ａ，１２ｂ，２０ａ，２０ｂにそれぞればね手段３２ａ，３２ｂ，３４ａ，３４ｂを設けた場合で説明したが、下記のようにすると、ばね手段３２ａ，３２ｂ，３４ａ，３４ｂを省略できる。 By the way, the case where the spring means 32a, 32b, 34a, 34b are provided in the main and sub brake arms 12a, 12b, 20a, 20b, respectively, has been described. However, the spring means 32a, 32b, 34a, 34b are provided as follows. Can be omitted.

上側の主，副制動腕１２ａ，２０ａ系について
（１）主制動腕１２ａのばね手段３２ａの省略
（方法１）副制動腕２０ａのばね手段３４ａで主制動腕１２ａのばね手段３２ａのばね力分を負担する。
（方法２）制動ばね１５ａで主制動腕１２ａのばね手段３２ａのばね力分を負担し、制動ばね１５ａの所定のばね力からばね手段３２ａのばね力分を減少する。
（２）副制動腕２０ａのばね手段３４ａの省略
（方法１）連結手段２２ａが両方向連結であれば、主制動腕１２ａのばね手段３２ａで副制動腕２０ａのばね手段３４ａのばね力分を負担する。
（方法２）連結手段２２ａが両方向連結であれば、制動ばね１５ａで副制動腕２０ａのばね手段３４ａのばね力分を負担し、制動ばね１５ａの所定のばね力からばね手段３４ａのばね力分を減少する。
（３）主，副制動腕１２ａ，２０ａの両方のばね手段３２ａ，３４ａの省略
（方法１）主，副制動腕１２ａ，２０ａのばね手段３２ａ，３４ａのばね力を負担できる十分な出力の電磁手段２３ａを設ける。
（方法２）制動ばね１５ａで主，副制動腕１２ａ，２０ａのばね手段３２ａ，３４ａのばね力分を負担し、制動ばね１５ａの所定のばね力からばね手段３２ａ，３４ａのばね力分を減少する。 (1) Omission of the spring means 32a of the main braking arm 12a (Method 1) The spring means 34a of the auxiliary braking arm 20a is divided by the spring force of the spring means 32a of the main braking arm 12a. To bear.
(Method 2) The spring force of the spring means 32a of the main brake arm 12a is borne by the brake spring 15a, and the spring force of the spring means 32a is reduced from the predetermined spring force of the brake spring 15a.
(2) Omission of the spring means 34a of the auxiliary braking arm 20a (Method 1) If the connecting means 22a is connected in both directions, the spring means 32a of the main braking arm 12a bears the spring force of the spring means 34a of the auxiliary braking arm 20a. To do.
(Method 2) If the connecting means 22a is connected in both directions, the spring force of the spring means 34a of the auxiliary brake arm 20a is borne by the brake spring 15a, and the spring force of the spring means 34a is determined from the predetermined spring force of the brake spring 15a. Decrease.
(3) Omission of both spring means 32a and 34a of the main and auxiliary braking arms 12a and 20a (Method 1) Electromagnetic output with sufficient output capable of bearing the spring force of the spring means 32a and 34a of the main and auxiliary braking arms 12a and 20a Means 23a are provided.
(Method 2) The spring force of the spring means 32a and 34a of the main and auxiliary brake arms 12a and 20a is borne by the brake spring 15a, and the spring force of the spring means 32a and 34a is reduced from the predetermined spring force of the brake spring 15a. To do.

また、同様に下側の主，副制動腕１２ｂ，２０ｂ系では
（１）主制動腕１２ｂのばね手段３２ｂの省略
（方法１）連結手段２２ａが両方向連結であれば、副制動腕２０ｂのばね手段３４ｂで主制動腕１２ｂのばね手段３２ｂのばね力分を負担する。
（方法２）制動ばね１５ｂで主制動腕１２ｂのばね手段３２ｂのばね力分を負担し、制動ばね１５ｂの所定のばね力からばね手段３２ｂのばね力分を増加する。
（２）副制動腕２０ｂのばね手段３４ｂの省略
（方法１）主制動腕１２ｂのばね手段３２ｂで副制動腕２０ｂのばね手段３４ｂのばね力分を負担する。
（方法２）制動ばね１５ｂで副制動腕２０ｂのばね手段３４ｂのばね力分を負担し、制動ばね１５ｂの所定のばね力からばね手段３４ｂのばね力分を増加する。
（３）主，副制動腕１２ｂ，２０ｂの両方のばね手段３２ｂ，３４ｂの省略
（方法１）主，副制動腕１２ｂ，２０ｂのばね手段３２ｂ，３４ｂのばね力を負担できる十分な出力の電磁手段２３ｂを設ける。
（方法２）制動ばね１５ｂで主，副制動腕１２ｂ，２０ｂのばね手段３２ｂ，３４ｂのばね力分を負担し、制動ばね１５ｂの所定のばね力からばね手段３２ｂ，３４ｂのばね力分を増加する。 Similarly, in the lower main and auxiliary braking arms 12b and 20b, (1) the spring means 32b of the main braking arm 12b is omitted. (Method 1) If the connecting means 22a is connected in both directions, the spring of the auxiliary braking arm 20b. The means 34b bears the spring force of the spring means 32b of the main braking arm 12b.
(Method 2) The spring force of the spring means 32b of the main brake arm 12b is borne by the brake spring 15b, and the spring force of the spring means 32b is increased from the predetermined spring force of the brake spring 15b.
(2) Omission of the spring means 34b of the auxiliary braking arm 20b (Method 1) The spring means 32b of the main braking arm 12b bears the spring force of the spring means 34b of the auxiliary braking arm 20b.
(Method 2) The spring force of the spring means 34b of the auxiliary brake arm 20b is borne by the brake spring 15b, and the spring force of the spring means 34b is increased from the predetermined spring force of the brake spring 15b.
(3) Omission of both spring means 32b and 34b of main and auxiliary braking arms 12b and 20b (Method 1) Electromagnetic output with sufficient output capable of bearing the spring force of spring means 32b and 34b of main and auxiliary braking arms 12b and 20b Means 23b are provided.
(Method 2) The spring force of the spring means 32b, 34b of the main and auxiliary brake arms 12b, 20b is borne by the brake spring 15b, and the spring force of the spring means 32b, 34b is increased from the predetermined spring force of the brake spring 15b. To do.

次に、上記のように構成される電磁ブレーキ及びエレベーターの動作を説明する。制動付加は電磁石２４の電磁コイル（図示を省略）への通電を遮断して電磁石２４を消勢して行い、制動ばね１５ａ，１５ｂのばね力が制動腕を介し制動片１３ａ，１３ｂで被制動体としての回転子４を押圧して制動状態となり、乗かご７及びつり合おもり８を停止保持する。制動解除は電磁石２４の電磁コイル（図示を省略）に通電して電磁石２４を付勢して行い、電磁吸引力により鉄片２５を吸引し制動ばね１５ａ，１５ｂのばね力に抗して制動腕１２ａ，１２ｂ，２０ａ，２０ｂを駆動し、制動片１３ａ，１３ｂを回転子４の制動面５から離間させて制動状態を解除し、電動機１を駆動して乗かご７及びつり合おもり８を昇降運転する。 Next, operations of the electromagnetic brake and elevator configured as described above will be described. The braking is performed by cutting off the current to the electromagnetic coil (not shown) of the electromagnet 24 and deactivating the electromagnet 24, and the spring force of the braking springs 15a and 15b is braked by the braking pieces 13a and 13b via the braking arms. The rotor 4 as a body is pressed to enter a braking state, and the car 7 and the counterweight 8 are stopped and held. The brake is released by energizing an electromagnetic coil (not shown) of the electromagnet 24 and energizing the electromagnet 24 to attract the iron piece 25 by the electromagnetic attractive force and resist the spring force of the brake springs 15a and 15b. , 12b, 20a, 20b, the braking pieces 13a, 13b are separated from the braking surface 5 of the rotor 4 to release the braking state, and the motor 1 is driven to drive the car 7 and the counterweight 8 up and down. To do.

したがって、巻上機１１の平面視で基台２の幅（Ｂ）内かつ回転子４側のロープ９端から基台２の反回転子４側端面の間（Ｗ）に前記電磁ブレーキ１０ａ，１０ｂを設置できるようにし、かつ、ばね手段３２ａ，３２ｂ，３４ａ，３４ｂ又は制動ばね１５ａ，１５ｂによって一対の主及び副制動腕１２ａ，１２ｂ，２０ａ，２０ｂに関わる付属部品の重量によるブレーキドラムへの押圧力を相殺、制動押圧力の不平衡が補正されるので、制動片１３ａ，１３ｂ磨耗の不平衡を改善して保守性が良好な電磁ブレーキを備えたエレベーター用巻上機が得られる。 Accordingly, the electromagnetic brakes 10a, 10a, 10b are disposed within the width (B) of the base 2 and between the end of the rope 9 on the rotor 4 side and the end face (W) on the counter rotor 4 side of the base 2 in a plan view of the hoisting machine 11. 10b, and the spring means 32a, 32b, 34a, 34b or the brake springs 15a, 15b are applied to the brake drum due to the weight of the accessories related to the pair of main and sub brake arms 12a, 12b, 20a, 20b. Since the pressing force is offset and the imbalance of the braking pressing force is corrected, the elevator hoisting machine having the electromagnetic brake with good maintainability by improving the imbalance of the braking pieces 13a and 13b is obtained.

第２の実施形態
図２６は、本発明による第２の実施形態であるエレベーター用巻上機１１の正面図であり、図１相当図である。本実施形態が第１の実施形態と異なる点は、電磁手段２３ａ，２３ｂが副制動腕２０ａ，２０ｂのそれぞれを引く方向に駆動し、連結手段２２ａ，２２ｂを介して主制動腕１２ａ，１２ｂを押圧する制動ばね１５ａ，１５ｂのばね力に抗して、制動片１３ａ，１３ｂの押圧力を解除するようにしたことである。図１と同一部分には同一符号を付して説明を省略する。 Second Embodiment FIG. 26 is a front view of an elevator hoisting machine 11 according to a second embodiment of the present invention, which corresponds to FIG. The present embodiment is different from the first embodiment in that the electromagnetic means 23a and 23b are driven in the direction of pulling the auxiliary braking arms 20a and 20b, and the main braking arms 12a and 12b are connected via the connecting means 22a and 22b. That is, the pressing force of the brake pieces 13a and 13b is released against the spring force of the brake springs 15a and 15b to be pressed. The same parts as those in FIG.

電磁手段７０ａ，７０ｂは、主制動腕１２ａ，１２ｂを押圧する制動ばね１５ａ，１５ｂのばね力に抗して副制動腕２０ａ，２０ｂのそれぞれを矢印Ｙ２のように引く方向に駆動し、連結手段２２ａ，２２ｂを介して主制動腕１２ａ，１２ｂを駆動し制動片１３ａ，１３ｂの押圧を解除して回転子４の制動を解除する。 The electromagnetic means 70a, 70b drive the auxiliary braking arms 20a, 20b in the pulling direction as indicated by the arrow Y2 against the spring force of the braking springs 15a, 15b that presses the main braking arms 12a, 12b, and the connecting means. The main braking arms 12a and 12b are driven via 22a and 22b to release the pressure on the braking pieces 13a and 13b, thereby releasing the braking of the rotor 4.

電磁手段７０ａ，７０ｂは図示を省略する継鉄と電磁コイルからなる電磁石７１と、この電磁石７１に電磁吸引される鉄片７２からなる。この鉄片７２と係合するロッド７３を副制動腕２０ａ，２０ｂに係合しナット７４で固定する。このナット７４を回転してロッド７３を出し入れすることにより、鉄片７２の動作ストロークを調整する。なお、図１と同様に、電磁石７１，鉄片７２の一方を基台２に設けた固定部材７５に固定し、他方を可動とする。図２６では鉄片７２を可動として副制動腕２０ａ，２０ｂを駆動するが、逆に電磁石７１を可動，鉄片を固定にしても良い。 The electromagnetic means 70a and 70b are composed of an electromagnet 71 composed of a yoke and an electromagnetic coil (not shown), and an iron piece 72 that is electromagnetically attracted to the electromagnet 71. A rod 73 that engages with the iron piece 72 is engaged with the sub braking arms 20 a and 20 b and fixed with a nut 74. The operation stroke of the iron piece 72 is adjusted by rotating the nut 74 and taking the rod 73 in and out. As in FIG. 1, one of the electromagnet 71 and the iron piece 72 is fixed to the fixing member 75 provided on the base 2, and the other is movable. In FIG. 26, the iron piece 72 is movable and the auxiliary braking arms 20a and 20b are driven, but conversely, the electromagnet 71 may be movable and the iron piece fixed.

電磁石７１と鉄片７２間に設けられるばね７６により、電磁手段７０ａ，７０ｂの固定部分である電磁石７１と可動部分である鉄片７２間に緊迫力を与え、がたつきを抑制する。なお、連結手段２２ａ，２２ｂは図４乃至図２１で説明したものが用いられる。また、電磁ブレーキ及びエレベーターの動作及び効果は第１の実施形態と同様であり、この構成により、特に電磁手段が前記回転子４側に設置できない時に有効な配置となる。 A spring 76 provided between the electromagnet 71 and the iron piece 72 applies a pressing force between the electromagnet 71 which is a fixed part of the electromagnetic means 70a and 70b and the iron piece 72 which is a movable part, thereby suppressing rattling. The connecting means 22a and 22b are the same as those described with reference to FIGS. The operation and effect of the electromagnetic brake and the elevator are the same as those in the first embodiment. With this configuration, the arrangement is effective particularly when the electromagnetic means cannot be installed on the rotor 4 side.

第３の実施形態
図２７は、本発明による第３の実施形態であるエレベーター用巻上機の正面図であり、図２６相当図である。この実施形態が第２の実施形態と異なる点は、電磁手段２３ａ，２４ｂが副制動腕７７ａ，７７ｂのそれぞれを引く方向に駆動し、連結手段２２ａ，２２ｂを介して主制動腕１２ａ，１２ｂを押圧する制動ばね１５ａ，１５ｂのばね力に抗して、制動片１３ａ，１３ｂの押圧力を解除するようにしたことである。図２６と同一部分には同一符号を付して説明を省略する。 Third Embodiment FIG. 27 is a front view of an elevator hoisting machine according to a third embodiment of the present invention, which corresponds to FIG. This embodiment is different from the second embodiment in that the electromagnetic means 23a, 24b are driven in the direction of pulling the auxiliary braking arms 77a, 77b, and the main braking arms 12a, 12b are connected via the connecting means 22a, 22b. That is, the pressing force of the brake pieces 13a and 13b is released against the spring force of the brake springs 15a and 15b to be pressed. 26 identical to those in FIG. 26 are assigned the same reference codes as in FIG.

軸７８で回動支持される副制動腕７７ａ，７７ｂは、連結手段２２ａ，２２ｂでそれぞれの主制動腕１２ａ，１２ｂと連結される。副制動腕７７ａ，７７ｂの力点には図１で説明した電磁手段２３ａ，２３ｂ及び押しボルト２８が設けられ、図１とは逆方向からこの電磁手段２３ａ，２３ｂで矢印Ｙ３のように押す方向に副制動腕７７ａ，７７ｂを駆動する。また、連結手段２２ａ，２２ｂは図４乃至図５及び図１０乃至図２５で説明したものが用いられる。また、電磁ブレーキ及びエレベーターの動作及び効果は第１の実施形態と同様であり、この構成により、第２の実施形態と同じく電磁手段が回転子４側に設置できない時に有効な配置となる。 The auxiliary braking arms 77a and 77b supported by the shaft 78 are connected to the main braking arms 12a and 12b by connecting means 22a and 22b. The electromagnetic means 23a, 23b and the push bolt 28 described in FIG. 1 are provided at the force points of the auxiliary braking arms 77a, 77b, and the electromagnetic means 23a, 23b are pushed in the direction of the arrow Y3 from the opposite direction to FIG. The auxiliary braking arms 77a and 77b are driven. The connecting means 22a and 22b are the same as those described with reference to FIGS. 4 to 5 and FIGS. 10 to 25. The operation and effect of the electromagnetic brake and the elevator are the same as those in the first embodiment. With this configuration, the arrangement is effective when the electromagnetic means cannot be installed on the rotor 4 side as in the second embodiment.

第４の実施形態
図２８は、本発明による第４の実施形態であるエレベーター用巻上機の正面図であり、図２７相当図である。この実施形態が第３の実施形態と異なる点は、電磁手段７０ａ，７０ｂが副制動腕７７ａ，７７ｂのそれぞれを引く方向に駆動し、連結手段２２ａ，２２ｂを介して主制動腕１２ａ，１２ｂを押圧する制動ばね１５ａ，５ｂのばね力に抗して制動片１３ａ，１３ｂの押圧力を解除するようにしたことである。図２７と同一部分には同一符号を付して説明を省略する。 Fourth Embodiment FIG. 28 is a front view of an elevator hoisting machine according to a fourth embodiment of the present invention, which corresponds to FIG. This embodiment differs from the third embodiment in that the electromagnetic means 70a and 70b are driven in the direction of pulling the auxiliary braking arms 77a and 77b, and the main braking arms 12a and 12b are connected via the connecting means 22a and 22b. That is, the pressing force of the braking pieces 13a and 13b is released against the spring force of the braking springs 15a and 5b to be pressed. The same parts as those in FIG.

副制動腕２０ａ，２０ｂの力点には図２６で説明した電磁手段及び押しボルトが設けられ、この電磁手段でＹ４のように引く方向に図２７とは逆方向から副制動腕２０ａ，２０ｂを駆動する。また、連結手段２２ａ，２２ｂは図４乃至図５及び図１０乃至図２５で説明したものが用いられる。また、ブレーキ装置及びエレベーターの動作及び効果は第１，３の実施形態と同様である。 The electromagnetic means and push bolts described in FIG. 26 are provided at the force points of the auxiliary braking arms 20a and 20b, and the auxiliary braking arms 20a and 20b are driven in the pulling direction like Y4 by the electromagnetic means from the direction opposite to FIG. To do. The connecting means 22a and 22b are the same as those described with reference to FIGS. 4 to 5 and FIGS. 10 to 25. The operation and effects of the brake device and the elevator are the same as those in the first and third embodiments.

なお、前述の第２乃至４の実施形態においても、第１の実施形態で説明したのと同様に、巻上機１１を左９０度又は右９０度回転し、重力方向を縦として制動腕の腕長さ方向が縦の縦置きにして、昇降路上部に設置することができる。 In the second to fourth embodiments described above, as described in the first embodiment, the hoisting machine 11 is rotated 90 degrees to the left or 90 degrees to the left and the direction of gravity is set to the vertical direction. The arm length direction can be set vertically and installed on the upper part of the hoistway.

上述した各実施形態によれば、巻上機の平面視で所定幅，厚さの範囲に設置でき、かつ、制動腕に関わる付属部品の重量による制動押圧力が生じないようにするとともに、被制動体への押圧力の不平衡を補正し、制動片磨耗の不平衡を改善して保守性が良くなる。 According to each of the above-described embodiments, the hoisting machine can be installed in a predetermined width and thickness range in plan view, and it is possible to prevent a braking pressing force due to the weight of an accessory related to the braking arm from being generated. The imbalance of the pressing force to the braking body is corrected, the unbalance of the braking piece wear is improved, and the maintainability is improved.

また、上述した実施形態に限らず、本発明の技術的思想の範囲内において、種々の実施形態が可能である。例えば、本発明による巻上機は、上述したような、機械室の無い機械室レスエレベーターのみならず、機械室を有するエレベーターにも適用でき、機械室を省スペース化することができる。 In addition to the above-described embodiments, various embodiments are possible within the scope of the technical idea of the present invention. For example, the hoist according to the present invention can be applied not only to a machine room-less elevator without a machine room as described above, but also to an elevator having a machine room, and the machine room can be saved in space.

本発明による第１の実施形態であるエレベーター用巻上機の正面図。The front view of the hoist for elevators which is the 1st embodiment by the present invention. 図１の平面図。The top view of FIG. 図１の他の平面図。The other top view of FIG. 連結手段の正面図。The front view of a connection means. 連結手段の側面図。The side view of a connection means. 巻上機を昇降路内の下部に設置したエレベーターの概略構成正面図。The schematic structure front view of the elevator which installed the hoisting machine in the lower part in a hoistway. 巻上機を昇降路内の下部に設置したエレベーターの概略構成側面図。The schematic structure side view of the elevator which installed the winding machine in the lower part in a hoistway. 図１の巻上機を９０度回転配置した巻上機。The hoisting machine in which the hoisting machine of FIG. 図８の巻上機を昇降路内の上部に設置した図６相当図。FIG. 9 is a view corresponding to FIG. 6 in which the hoisting machine of FIG. 連結手段の別な実施形態を示す図。The figure which shows another embodiment of a connection means. 図１０のＢ−Ｂ視図。BB view of FIG. 連結手段の別な実施形態を示す図。The figure which shows another embodiment of a connection means. 図１２のＣ−Ｃ視図。CC view of FIG. 連結手段の別な実施形態を示す図。The figure which shows another embodiment of a connection means. 図１４のＤ−Ｄ視図。DD view of FIG. 連結手段の別な実施形態を示す図。The figure which shows another embodiment of a connection means. 図１６のＥ−Ｅ視図。EE view of FIG. 連結手段の別な実施形態を示す図。The figure which shows another embodiment of a connection means. 図１８のＥ−Ｅ視図。EE view of FIG. 連結手段の別な実施形態を示す図。The figure which shows another embodiment of a connection means. 図２０のＧ−Ｇ視図。GG view of FIG. 連結手段の別な実施形態を示す図。The figure which shows another embodiment of a connection means. 図２２のＨ−Ｈ視図。The HH view of FIG. 連結手段の別な実施形態を示す図。The figure which shows another embodiment of a connection means. 図２４のＩ−Ｉ視図。FIG. 25 is a II view of FIG. 24. 本発明による第１の実施形態であるエレベーター用巻上機の正面図。The front view of the hoist for elevators which is the 1st embodiment by the present invention. 本発明による第１の実施形態であるエレベーター用巻上機の正面図。The front view of the hoist for elevators which is the 1st embodiment by the present invention. 本発明による第１の実施形態であるエレベーター用巻上機の正面図。The front view of the hoist for elevators which is the 1st embodiment by the present invention.

符号の説明Explanation of symbols

１電動機
２基台
３固定子
４回転子
５制動面
６綱車
７乗かご
８つり合おもり
９ロープ
１０ａ，１０ｂ電磁ブレーキ
１１巻上機
１２ａ，１２ｂ主制動腕
１３ａ，１３ｂ制動片
１５ａ，１５ｂ制動ばね
２０ａ，２０ｂ副制動腕
２２ａ，２２ｂ連結手段
２３ａ，２３ｂ電磁手段
３３ａ，３３ｂ，３５ａ，３５ｂ押圧力補正手段 DESCRIPTION OF SYMBOLS 1 Electric motor 2 Base 3 Stator 4 Rotor 5 Braking surface 6 Sheave 7 Car 8 Balance weight 9 Rope 10a, 10b Electromagnetic brake 11 Hoisting machines 12a, 12b Main braking arms 13a, 13b Braking pieces 15a, 15b Braking Spring 20a, 20b Subbraking arm 22a, 22b Connecting means 23a, 23b Electromagnetic means 33a, 33b, 35a, 35b Pressing force correcting means

Claims

基台に設けられる扁平な電動機と、前記電動機の回転子に設けられ乗かご及びつり合おもりを係合するロープが巻き掛けられる綱車と、前記回転子を被制動体とする電磁ブレーキとを備えるエレベーター用巻上機において、
前記電磁ブレーキは、前記基台に設置され、前記回転子外周面を制動面にし、前記制動面に対向して配置される制動片を備えて回動支持される主制動腕と、前記制動片が前記制動面を押圧し前記回転子を制動付加するように前記主制動腕に圧力を付加する制動ばねと、前記主制動腕と並行設置され回動支持される副制動腕と、前記主制動腕と副制動腕とを連結する連結手段と、前記制動ばねのばね力に抗して前記副制動腕を駆動し前記制動片の押圧を解除し前記回転子の制動を解除する電磁手段とを備えるとともに、前記各制動腕の腕長さ方向における前記基台の幅内でかつ前記回転子側のロープ端と前記基台の反回転子側端との間に配置することを特徴とするエレベーター用巻上機。 A flat electric motor provided on a base, a sheave provided on a rotor of the electric motor around which a rope for engaging a car and a counterweight is wound, and an electromagnetic brake using the rotor as a braked body In the elevator hoisting machine provided,
The electromagnetic brake is installed on the base, and has a brake piece disposed on the outer peripheral surface of the rotor as a braking surface and arranged to face the braking surface. A brake spring that applies pressure to the main brake arm so as to press the brake surface and brake the rotor, a sub-brake arm that is installed in parallel with the main brake arm and is pivotally supported, and the main brake Connecting means for connecting the arm and the auxiliary braking arm; and electromagnetic means for driving the auxiliary braking arm against the spring force of the braking spring to release the brake piece and release the braking of the rotor. And an elevator that is disposed within the width of the base in the arm length direction of each brake arm and between the rope end on the rotor side and the counter-rotor side end of the base. Hoisting machine.

請求項１において、前記電磁ブレーキの重量で発生する前記制動片の前記回転子への押圧力を補正する補正手段を備えることを特徴とするエレベーター用巻上機。 The elevator hoisting machine according to claim 1, further comprising a correcting unit that corrects a pressing force of the braking piece generated by the weight of the electromagnetic brake to the rotor.

請求項１において、前記電磁ブレーキの重量で発生する前記制動片の前記回転子への押圧力を前記制動ばねのばね力によって補正することを特徴とするエレベーター用巻上機。 The elevator hoisting machine according to claim 1, wherein a pressing force of the braking piece to the rotor generated by the weight of the electromagnetic brake is corrected by a spring force of the braking spring.

請求項２において、前記補正手段は前記主制動腕又は副制動腕に設けたばね手段であることを特徴とするエレベーター用巻上機。 The elevator hoisting machine according to claim 2, wherein the correction means is a spring means provided on the main braking arm or the auxiliary braking arm.

請求項１ないし４のいずれか１項において、前記副制動腕は前記電磁手段の出力駆動点である力点に対し前記連結手段の連結点である作用点の動作方向が反転又は非反転であるとともに、前記電磁手段の出力は押す方向又は引く方向であることを特徴とするエレベーター用巻上機。 5. The operating direction of an action point that is a connection point of the connecting means is reversed or non-reversed with respect to a force point that is an output driving point of the electromagnetic means. The elevator hoisting machine is characterized in that the output of the electromagnetic means is a pushing direction or a pulling direction.

請求項１ないし５のいずれか１項において、前記連結手段は両方向連結又は一方向連結であることを特徴とするエレベーター用巻上機。 The elevator hoisting machine according to any one of claims 1 to 5, wherein the connecting means is a two-way connection or a one-way connection.