JPH0114613Y2

JPH0114613Y2 -

Info

Publication number: JPH0114613Y2
Application number: JP1983025550U
Authority: JP
Priority date: 1983-02-23
Filing date: 1983-02-23
Publication date: 1989-04-28
Also published as: JPS59133570U

Description

【考案の詳細な説明】［産業上の利用分野］高層鉄塔に於いてはガイドレールとピンラツク
とを垂直に敷設し、これに沿うて昇降を可能とし
た壁面昇降機が広く用いられている。本考案はこ
の昇降機の安全装置に関するもので、不測の事故
による昇降機の急落下を制動すると同時に駆動モ
ータを停止させるようにしたものである。[Detailed description of the invention] [Industrial application field] In high-rise steel towers, wall lifts are widely used in which guide rails and pin racks are laid vertically, and the lift can be moved up and down along these lines. The present invention relates to a safety device for this elevator, which brakes the sudden fall of the elevator due to an unexpected accident and simultaneously stops the drive motor.

［従来技術と問題点］前記の目的に沿うものとして実開昭58−1060に
より、駆動軸を上下２本備えたものが公知である
が、装置が巨大化し、重量も大きくなる欠点があ
つた。他に特公昭47−10489で単軸のものが公知
であるが、ブレーキ部材１５，２０を摩擦接触さ
せる際遠心部材１７がブレーキ部材２０の内面を
押圧しながら軸線方向移動をする構成であるた
め、作用に無理があり、所期の制動効果が得にく
い。また速度感知部が装置の内部に閉じこめられ
ていて、使用前の安全点検が行えない等の問題も
あつた。[Prior art and problems] A device equipped with two upper and lower drive shafts is known from Utility Model Application No. 58-1060 as a device that meets the above purpose, but it has the disadvantage that the device becomes bulky and heavy. . In addition, a single-axis type is known from Japanese Patent Publication No. 47-10489, but it is configured so that when the brake members 15 and 20 are brought into frictional contact, the centrifugal member 17 moves in the axial direction while pressing the inner surface of the brake member 20. , the action is unreasonable and it is difficult to obtain the desired braking effect. There were also other problems, such as the speed sensing section being confined inside the device, making it impossible to perform safety checks before use.

［問題点解決の手段］単軸装置に於いて、遠心部材によるブレーキ部
材内面押圧位置が、ブレーキ部材の軸線方向移動
に影響されない構成にする。また速度検知部は手
動点検を可能とするよう全装置の外端部に配置す
る。[Means for solving the problem] In a single-axis device, the position at which the centrifugal member presses the inner surface of the brake member is not affected by the axial movement of the brake member. Additionally, the speed detection unit will be located at the outer end of all equipment to enable manual inspection.

［実施例］図面についてその実施例を説明する。鉄塔の壁
面にはガイドレールＧとピンラツクＰとが垂直に
固着されている。昇降機のケージＣは正逆回転可
能なモータＭを搭載し、両端のアームＨ先端のロ
ーラでガイドレールＧと係合する。駆動軸１はモ
ータＭから附設の減速装置を介して突出し、その
先端附近はねじ部１ａとなつている。ピニオン２
は駆動軸１へ固着され、ピンラツクＰとかみ合
う。ドラムＡはピニオン２に固着されており、摩
擦接触面ａを備える。ナツト筒３は駆動軸のねじ
部１ａと螺合し、前端に凸辺３ａを備え、後端に
環状ストツパ３ｂを固着してある。ドラムＢとシ
ユー板４とは何れもナツト筒３へ回転自在に支持
され、凸辺３ａとストツパ３ｂとに挟まれて軸線
方向動きは拘束されている。但しドラムＢは外周
に突片Ｔを備える。これがケージＣに設けた案内
ｇと係合し、ドラムＢは軸線方向移動のみを許容
される。ドラムＢは一面に摩擦接触面ｂを備え、
これが接触面ａと接触可能である。またその他面
には円筒５が固着され、その内面が摩擦接触面と
なつている。シユー板４は環状板の外周へ対称に
ウイング４ａを突出させたもので、ウイング４ａ
には夫々シユー６がピン７で枢着されており、
夫々の対向するシユー６の両端同志が平行リンク
１６で連結され、附設ばね８によつて互に姿勢を
揃えている。シユー板４を回わすと遠心力でシユ
ー６の先端が円筒５の接触面５ａと接触係合する
ようになつている。駆動軸１の外端面には直径方
向溝が設けてあり、これへ短冊形薄板の止板９が
はめこまれ、その両端がナツト筒３の端面へねじ
１０でとめてある。同じく駆動軸の外端部には軸
線方向有底孔が穿たれ、これへ挿入された飛出片
１１が附設ばねｓによつて飛出しを附勢され、止
板９で係止されている。即ち駆動軸１とナツト筒
３の間に相対回動が起こると、止板９は破壊さ
れ、飛出片１１が飛出すようになつている。その
飛出方向には、飛出片１１の飛込みによりモータ
を停止可能なリミツトスイツチＳが臨ませてあ
り、このスイツチＳはアーム１２を介しドラムＢ
に固着されている。ナツト筒３の凸片３ａにはピ
ン１３が植込んである。係合子１４はピン１３に
枢着され、ウイング４ａに植込んだピン１５と係
合離脱可能である。この係合によつて、ナツト筒
３とシユー板４とは一体化回転可能となる。[Example] An example will be described with reference to the drawings. A guide rail G and a pin rack P are vertically fixed to the wall of the steel tower. The cage C of the elevator is equipped with a motor M capable of forward and reverse rotation, and engages with a guide rail G by rollers at the tips of arms H at both ends. The drive shaft 1 protrudes from the motor M via an attached reduction gear, and has a threaded portion 1a near its tip. pinion 2
is fixed to the drive shaft 1 and meshes with the pin rack P. The drum A is fixed to the pinion 2 and has a frictional contact surface a. The nut tube 3 is threadedly engaged with the threaded portion 1a of the drive shaft, has a convex side 3a at its front end, and has an annular stopper 3b fixed to its rear end. Both the drum B and the show plate 4 are rotatably supported by the nut cylinder 3, and are restrained from moving in the axial direction by being sandwiched between the convex side 3a and the stopper 3b. However, the drum B is provided with a protrusion T on the outer periphery. This engages a guide g provided in the cage C, and the drum B is only allowed to move in the axial direction. The drum B has a friction contact surface b on one side,
This can come into contact with contact surface a. A cylinder 5 is fixed to the other surface, and the inner surface thereof serves as a friction contact surface. The shoe plate 4 is an annular plate with wings 4a projecting symmetrically toward the outer periphery.
A shoe 6 is pivotally connected to each with a pin 7,
Both ends of the shoes 6 facing each other are connected by a parallel link 16, and are aligned with each other by an attached spring 8. When the shoe plate 4 is rotated, the tip of the shoe 6 comes into contact with the contact surface 5a of the cylinder 5 due to centrifugal force. A diametrical groove is provided on the outer end surface of the drive shaft 1, into which a stop plate 9 made of a rectangular thin plate is fitted, and both ends of the stop plate 9 are fastened to the end surface of the nut cylinder 3 with screws 10. Similarly, a bottomed hole in the axial direction is bored in the outer end of the drive shaft, and a protruding piece 11 inserted into this is urged to protrude by an attached spring s, and is locked by a stop plate 9. . That is, when a relative rotation occurs between the drive shaft 1 and the nut cylinder 3, the stop plate 9 is destroyed and the protruding piece 11 is made to protrude. A limit switch S that can stop the motor when the protruding piece 11 jumps in is facing in the direction of the protrusion, and this switch S is connected to the drum B via the arm 12.
is fixed to. A pin 13 is embedded in the convex piece 3a of the nut cylinder 3. The engaging element 14 is pivotally connected to the pin 13, and can be engaged with and disengaged from the pin 15 implanted in the wing 4a. Due to this engagement, the nut cylinder 3 and the shoe plate 4 can be rotated as one unit.

本考案は以上のように構成される。係合子１４
は常時はピン１５と係合させ、ナツト筒とシユー
板とを一体化して使用する。モータを正転或は逆
転させ、昇降機を正常速度で昇降させている場
合、駆動軸の回転は緩慢であるため、ナツト筒は
駆動軸と一体化して回転する。シユー６は円筒５
の内面と接触せず、２つのドラムＡ，Ｂも互に接
触はしない。しかし減速機やモータブレーキ等の
破損による不測の事態で昇降機が急降下する場合
には、ピニオンとラツクのかみ合いにより駆動軸
は急回転し、ナツト筒とシユー板も急回転する。
シユーは飛出してドラムＢと係合するが、ドラム
Ｂが回転を抑止されているので、ナツト筒、シユ
ー板、ドラムＢの３者は一体となつて図の左方へ
移動する。２つのドラムＡ，Ｂは係合一体化した
上、突片Ｔによつて回転を抑止される。この間駆
動軸とナツト筒との相対回転によつて、止板９は
破壊される。飛出片１１の飛出しによつてスイツ
チＳが作動し、モータも回転を停止する。このあ
と昇降機はドラムＡ，Ｂの摩擦力によつて徐々に
停止する。 The present invention is constructed as described above. Engagement element 14
is normally engaged with the pin 15, and the nut cylinder and shoe plate are used as one unit. When the motor is rotated forward or reverse to move the elevator up and down at a normal speed, the rotation of the drive shaft is slow, so the nut tube rotates integrally with the drive shaft. Show 6 is cylinder 5
The two drums A and B do not come into contact with each other. However, if the elevator suddenly descends due to unforeseen circumstances such as damage to the reducer or motor brake, the drive shaft rotates rapidly due to the engagement of the pinion and the rack, and the nut tube and shoe plate also rotate rapidly.
The shoe pops out and engages with drum B, but since drum B is prevented from rotating, the nut cylinder, shoe plate, and drum B move as one to the left in the figure. The two drums A and B are integrally engaged and are prevented from rotating by the projection T. During this time, the stop plate 9 is destroyed due to the relative rotation between the drive shaft and the nut cylinder. The switch S is actuated by the protrusion of the protrusion piece 11, and the motor also stops rotating. After this, the elevator gradually stops due to the frictional force between drums A and B.

以上の作動が誤りなく行われるためには、非常
の際シユーが確実かつ有効に円筒内面と摩擦接触
することが絶対必要条件である。確実に作用する
か否かは随時点検を要する。その場合には係合子
１４をピン１５から離脱させればよい。シユー板
は手動で回転可能となるので、容易にこの点検が
行える。 In order for the above operation to be carried out without error, it is absolutely necessary that the shoe reliably and effectively come into frictional contact with the cylindrical inner surface in the event of an emergency. It is necessary to check from time to time whether it is working reliably. In that case, the engaging element 14 may be separated from the pin 15. Since the shoe plate can be rotated manually, this inspection can be easily performed.

［効果］シユーによるドラムＢの内面押圧がドラムＢの
軸線方向移動と独立に行われるため、無理なく制
動作用を発揮できる。シユーとリンクの係合作用
は随時点検可能で、安全確認に寄与する。[Effects] Since the inner surface of the drum B is pressed by the shoe independently of the axial movement of the drum B, the braking action can be exerted without difficulty. The engagement between the shoe and the link can be checked at any time, contributing to safety confirmation.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の平面図、第２図は同一部の切
断平面図、第３図はPP断面矢視図、第４図はQQ
断面矢視図である。Ｇ……ガイドレール、Ｐ……ピンラツク、Ｃ…
…ケージ、Ｍ……モータ、Ｈ……アーム、Ｔ……
突片、ｇ……案内、Ｓ……スイツチ、Ａ，Ｂ……
ドラム、１……駆動軸、１ａ……ねじ部、２……
ピニオン、３……ナツト筒、３ａ……凸辺、３ｂ
……ストツパ、４……シユー板、４ａ……ウイン
グ、５……円筒、６……シユー、７……ピン、８
……ばね、９……止板、１０……ねじ、１１……
飛出片、１２……アーム、１３……ピン、１４…
…係合子、１５……ピン、１６……平行リンク。 Figure 1 is a plan view of the present invention, Figure 2 is a cutaway plan view of the same part, Figure 3 is a cross-sectional view of PP, and Figure 4 is a QQ
FIG. G...Guide rail, P...Pin rack, C...
...Cage, M...Motor, H...Arm, T...
Projection, g...Guide, S...Switch, A, B...
Drum, 1... Drive shaft, 1a... Threaded portion, 2...
Pinion, 3... Nut cylinder, 3a... Convex side, 3b
...Stopper, 4...Show plate, 4a...Wing, 5...Cylinder, 6...Show, 7...Pin, 8
... Spring, 9 ... Stop plate, 10 ... Screw, 11 ...
Projection piece, 12... Arm, 13... Pin, 14...
...Engager, 15...Pin, 16...Parallel link.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

モータにより正逆回転可能で先端部をねじ部と
した駆動軸と、駆動軸に固着され壁面のラツク棒
とかみ合うピニオンとを備えた昇降機に附設さ
れ、駆動軸に固着されたドラムＡと、駆動軸のね
じ部と螺合し昇降機ケージに回り止めされたナツ
ト筒と、ナツト筒外周へ回転自在に支持され一面
はドラムＡと摩擦接触可能で他面に円筒を固着し
たドラムＢと、同じくナツト筒と係合或は離脱し
てその外周へ回転自在に支持されドラムＢの円筒
内面と摩擦接触可能なシユーを軸支したシユー板
と、ナツト筒と駆動軸との相対回動により駆動軸
端から飛出し可能な飛出片と、アームを介してド
ラムＢに附設され前記飛出片の飛込みによりモー
タを停止可能なスイツチとから構成され、駆動軸
回転の異常加速によりシユー円板とドラムＢとが
係合一体化するようにしたことを特徴とする昇降
機の安全装置。 A drum A attached to an elevator is equipped with a drive shaft that can be rotated forward and backward by a motor and has a threaded end, and a pinion that is fixed to the drive shaft and meshes with a rack rod on the wall. A nut cylinder is screwed into the threaded part of the shaft and is prevented from rotating by the elevator cage, and a drum B is rotatably supported on the outer periphery of the nut cylinder and has one side capable of frictional contact with drum A and a cylinder fixed to the other side, and the same nut cylinder. A shoe plate that engages with or disengages from the cylinder and is rotatably supported on its outer periphery and is capable of frictional contact with the cylindrical inner surface of the drum B is pivoted, and the drive shaft end is rotated by the relative rotation between the nut cylinder and the drive shaft. It consists of a fly-out piece that can fly out from the drum B, and a switch that is attached to the drum B via an arm and can stop the motor when the fly-out piece jumps in. A safety device for an elevator, characterized in that the two are integrally engaged with each other.