JPH0735176A - Nonexciting electromagnetic brake equipped with manual opening device - Google Patents
Nonexciting electromagnetic brake equipped with manual opening deviceInfo
- Publication number
- JPH0735176A JPH0735176A JP5181755A JP18175593A JPH0735176A JP H0735176 A JPH0735176 A JP H0735176A JP 5181755 A JP5181755 A JP 5181755A JP 18175593 A JP18175593 A JP 18175593A JP H0735176 A JPH0735176 A JP H0735176A
- Authority
- JP
- Japan
- Prior art keywords
- iron core
- cover
- braking
- screw
- thread
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2127/00—Auxiliary mechanisms
- F16D2127/02—Release mechanisms
- F16D2127/04—Release mechanisms for manual operation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、電源が遮断されたり
電源がない状態でも、開放ボルトを使用して手動で制動
を開放できる手動開放装置を備える無励磁電磁ブレーキ
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-excited electromagnetic brake provided with a manual release device that can manually release braking even when the power supply is cut off or there is no power supply.
【０００２】[0002]
【従来の技術】無励磁電磁ブレーキは、電磁石に吸引さ
れて制動を解放し制動ばねで押されて制動をする。この
ため、運転中に電源側の事故により電源が遮断されると
必ず制動が働くので安全ブレーキともいわれる。しか
し、電源が遮断されている状態で無励磁電磁ブレーキを
電動機や電動機の負荷と組み立てるときには、無励磁電
磁ブレーキの回転軸を寸動させたいことが多いので、手
動開放装置がどうしても必要となる。2. Description of the Related Art A non-excited electromagnetic brake is attracted by an electromagnet to release braking and is pressed by a braking spring to perform braking. For this reason, if the power is cut off due to an accident on the power supply side during driving, braking is always performed, and it is also called a safety brake. However, when the non-excited electromagnetic brake is assembled with the electric motor or the load of the electric motor in the state where the power supply is cut off, it is often desired to move the rotary shaft of the non-excited electromagnetic brake slightly, so that the manual release device is absolutely necessary.
【０００３】図３は従来例の手動開放装置を備える無励
磁電磁ブレーキの半断面図である。図において、この無
励磁電磁ブレーキの構成は、よく知られるように、固定
鉄心１ａとコイル１ｂとを持つ電磁石１と、この電磁石
１に吸引されて制動を解放し制動ばね２で押されて制動
をする可動鉄心３と、この可動鉄心３と制動板４との間
に配置され両側にブレーキライニング５ａを持つ回転円
板５と、この回転円板５と例えばスプラインのように軸
方向に移動可能に結合されるセンタハブ６と、このセン
タハブ６に固定され軸受７で支承される回転軸８と、固
定鉄心１ａと制動板４との相互位置を確保する図示しな
い例えばスタッドのような連結部材とを備える。FIG. 3 is a half sectional view of a non-excitation electromagnetic brake provided with a conventional manual release device. In the figure, the structure of this non-excitation electromagnetic brake is, as is well known, an electromagnet 1 having a fixed iron core 1a and a coil 1b, and a brake which is attracted to the electromagnet 1 to release braking and is pressed by a braking spring 2 to brake. A movable iron core 3, a rotary disc 5 arranged between the movable iron core 3 and the braking plate 4 and having brake linings 5a on both sides, and the rotary disc 5 and the rotary disc 5 are movable in the axial direction like a spline, for example. A center hub 6 connected to the center hub 6, a rotary shaft 8 fixed to the center hub 6 and supported by a bearing 7, and a connecting member such as a stud (not shown) for securing the mutual position of the fixed iron core 1a and the braking plate 4. Prepare
【０００４】この従来例の場合はブレーキ電動機として
構成され、電動機のブラケット９に、制動板４と軸受７
とを取付ける。ブラケット９には防塵、防音のために、
無励磁電磁ブレーキを電磁石１側から囲むように断面コ
字状のカバー３１がねじ１０で固定される。手動で制動
を開放するために、可動鉄心３に鉄心めねじ１１を設
け、この鉄心めねじ１１の軸方向に向かう挿通孔１２を
固定鉄心１ａに設ける。挿通孔１２には座１２ａを設け
るとよい。手動開放するときには、ボルト１０を外して
カバー３１を取り外し、適当な長さのボルト３２を探し
て来る。このボルト３２を挿通孔１２に挿通して鉄心め
ねじ１１にねじ込み、制動ばね２に抗して可動鉄心３を
固定鉄心１ａ側に引き戻して制動を手動開放する。In the case of this conventional example, it is configured as a brake electric motor, and a braking plate 4 and a bearing 7 are attached to a bracket 9 of the electric motor.
And install. To prevent dust and sound on the bracket 9,
A cover 31 having a U-shaped cross section is fixed by a screw 10 so as to surround the non-excitation electromagnetic brake from the electromagnet 1 side. In order to manually release the braking, the movable iron core 3 is provided with an iron core female screw 11, and an insertion hole 12 extending in the axial direction of the iron core female screw 11 is provided in the fixed iron core 1a. A seat 12a may be provided in the insertion hole 12. When manually opening, the bolt 10 is removed, the cover 31 is removed, and the bolt 32 having an appropriate length is searched for. The bolt 32 is inserted into the insertion hole 12 and screwed into the iron core female screw 11, the movable iron core 3 is pulled back to the fixed iron core 1a side against the braking spring 2, and the braking is manually released.
【０００５】[0005]
【発明が解決しようとする課題】前記の従来例では、制
動を手動開放するには、その都度、カバー３１を取り外
さなければならないし、適当な長さのボルト３２を探し
て来なければならない。カバー３１を取り外さないよう
にカバー３１にボルト３２のための孔を設けておけば防
塵、防音性が損なわれるし、適当な長さのボルト３２を
予めカバー３１の内側や外側にクランプして置いても脱
落、紛失の恐れがある。In the above-mentioned conventional example, in order to manually release the braking, the cover 31 must be removed each time, and the bolt 32 having an appropriate length must be searched for. If a hole for the bolt 32 is provided in the cover 31 so as not to remove the cover 31, the dustproofness and soundproofness will be impaired, and the bolt 32 of an appropriate length should be clamped inside or outside the cover 31 in advance. However, there is a risk of falling off or loss.
【０００６】この発明の目的は、無励磁で制動状態の可
動鉄心の手動開放が、カバーを取り外すことなく可能で
あり、手動開放用の開放ボルトの脱落、紛失の恐れがな
いような手動開放装置を備える無励磁電磁ブレーキを提
供することにある。An object of the present invention is to manually open a movable iron core in a braking state without excitation, without removing a cover, and there is no fear that the opening bolt for manual opening will fall out or be lost. A non-excitation electromagnetic brake having
【０００７】[0007]
【課題を解決するための手段】この発明の手動開放装置
を備える無励磁電磁ブレーキは、電磁石に吸引されて制
動を解放し制動ばねで押されて制動をする可動鉄心と、
この可動鉄心と制動板との間に配置される回転円板と、
この回転円板と軸方向に移動可能に結合されるセンタハ
ブと、このセンタハブに固定され軸受で支承される回転
軸と、電磁石の固定鉄心と制動板との相互位置を確保す
る連結部材とを備える無励磁電磁ブレーキにおいて、こ
の無励磁電磁ブレーキを電磁石側から囲む断面コ字状の
カバーと、固定鉄心の挿通孔に挿通される開放ボルトと
を備え、この開放ボルトは、カバーのカバーめねじにね
じ結合可能な外側おねじと、可動鉄心の鉄心めねじにね
じ結合可能な内側おねじと、外側おねじと内側おねじと
の間の胴太部と、外側おねじの外端に形成され外側おね
じの谷の径より細いねじ回し部とを備え、開放ボルトの
寸法は、外側おねじが前記カバーめねじにねじ結合して
胴太部がカバーに当接する状態で内側おねじが固定鉄心
の内側端面より引き込んでおり、外側おねじが前記カバ
ーめねじとねじ結合が外れて胴太部が固定鉄心の外側端
面に当接する状態で内側おねじが前記鉄心めねじにねじ
結合する関係にあるものである。A non-excitation electromagnetic brake provided with a manual release device of the present invention includes a movable iron core that is attracted by an electromagnet to release braking and is pressed by a braking spring to perform braking.
A rotating disc disposed between the movable iron core and the braking plate,
A center hub movably coupled to the rotary disc in the axial direction, a rotary shaft fixed to the center hub and supported by bearings, and a connecting member that secures a mutual position between the fixed iron core of the electromagnet and the braking plate. The non-excitation electromagnetic brake is provided with a cover having a U-shaped cross section that surrounds the non-excitation electromagnetic brake from the electromagnet side, and an open bolt that is inserted into an insertion hole of the fixed iron core. It is formed on the outer male thread that can be screwed, the inner male thread that can be screwed to the iron core female thread of the movable iron core, the body part between the outer male thread and the inner male thread, and the outer end of the outer male thread. It has a screwdriver part that is thinner than the diameter of the trough of the outer male thread.The dimensions of the open bolt are such that the outer male thread is screwed to the cover female thread and the inner male thread is fixed when the thick body portion contacts the cover. Pull from the inner end surface of the iron core The external male screw is in a relationship of being screw-coupled to the cover female screw, and the inner male screw is screw-coupled to the female iron core in a state in which the body portion is in contact with the outer end surface of the fixed iron core. .
【０００８】[0008]
【作用】このような構成によれば、開放ボルトの外側お
ねじがカバーめねじにねじ結合して胴太部がカバーに当
接する状態では、内側おねじが固定鉄心の内側端面より
引き込んでいる。このため、内側おねじの先端は運転中
の制動時に可動鉄心に干渉しない。また、開放ボルトの
脱落、紛失の恐れもないし、カバーめねじが塞がれて防
塵、防音性を損なわない。そして、外側おねじとカバー
めねじとのねじ結合を外すように回して内側おねじが鉄
心めねじにねじ込まれ、胴太部が固定鉄心の外側端面に
当接する状態では、内側おねじが制動ばねに抗して可動
鉄心を固定鉄心側に引き戻して制動を手動開放する。こ
のため、カバーを取り外す必要がない。また、ねじ回し
部は外側おねじの谷の径より細いので、外側おねじがカ
バーめねじから外れるときに、ねじ回し部はカバーめね
じに干渉しない。According to this structure, the inner male screw is pulled in from the inner end surface of the fixed iron core in a state where the outer male screw of the open bolt is screwed to the female screw of the cover and the thick body portion contacts the cover. . Therefore, the tip of the inner male screw does not interfere with the movable iron core during braking during operation. Further, there is no fear that the open bolt will fall out or be lost, and the female screw for the cover will be closed so that the dustproof and soundproof properties will not be impaired. When the inner male screw is screwed into the iron core female screw by turning so that the outer male screw and the cover female screw are disconnected, the inner male screw is braked when the thick body portion contacts the outer end face of the fixed iron core. The movable iron core is pulled back to the fixed iron core side against the spring to manually release the braking. Therefore, it is not necessary to remove the cover. Further, since the screwdriver portion is thinner than the diameter of the trough of the outer male screw, the screwdriver portion does not interfere with the cover female screw when the outer male screw comes off the cover female screw.
【０００９】[0009]
【実施例】図１は実施例の運転状態で制動中の半断面
図、図２は図１の手動開放状態の要部の断面図である。
従来例及び各図において同一符号をつけるものはおよそ
同一機能を持ち、重複説明を省くこともある。図におい
て、この無励磁電磁ブレーキの構成は、従来例と同様
に、固定鉄心１ａとコイル１ｂとを持つ電磁石１と、こ
の電磁石１に吸引されて制動を解放し制動ばね２で押さ
れて制動をする可動鉄心３と、この可動鉄心３と制動板
４との間に配置され両側にブレーキライニング５ａを持
つ回転円板５と、この回転円板５と例えばスプラインの
ように軸方向に移動可能に結合されるセンタハブ６と、
このセンタハブ６に固定され軸受７で支承される回転軸
８と、固定鉄心１ａと制動板４との相互位置を確保する
図示しない例えばスタッドのような連結部材とを備え
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a half sectional view during braking in an operating state of the embodiment, and FIG. 2 is a sectional view of a main portion of FIG. 1 in a manually opened state.
In the conventional example and in each drawing, those denoted by the same reference numerals have approximately the same function, and duplicate explanation may be omitted. In the figure, the structure of this non-excitation electromagnetic brake is similar to the conventional example, in which an electromagnet 1 having a fixed iron core 1a and a coil 1b, and a brake which is attracted by the electromagnet 1 to release braking and is pressed by a braking spring 2 are used. A movable iron core 3, a rotary disc 5 arranged between the movable iron core 3 and the braking plate 4 and having brake linings 5a on both sides, and the rotary disc 5 and the rotary disc 5 are movable in the axial direction like a spline, for example. A center hub 6 coupled to
A rotating shaft 8 fixed to the center hub 6 and supported by bearings 7 and a connecting member (not shown) such as a stud for securing the mutual position of the fixed iron core 1a and the braking plate 4 are provided.
【００１０】この実施例の場合もブレーキ電動機として
構成され、電動機のブラケット９に、制動板４と軸受７
とを取付ける。ブラケット９には防塵、防音のために、
無励磁電磁ブレーキを電磁石１側から囲むように断面コ
字状のカバー２１がねじ１０で固定される。手動で制動
を開放するために、可動鉄心３に鉄心めねじ１１を設
け、この鉄心めねじ１１の軸方向に向かう挿通孔１２を
固定鉄心１ａに設ける。挿通孔１２には座１２ａを設け
るとよい。Also in the case of this embodiment, the brake motor is constructed, and the brake plate 4 and the bearing 7 are attached to the bracket 9 of the motor.
And install. To prevent dust and sound on the bracket 9,
A cover 21 having a U-shaped cross section is fixed by a screw 10 so as to surround the non-excitation electromagnetic brake from the electromagnet 1 side. In order to manually release the braking, the movable iron core 3 is provided with an iron core female screw 11, and an insertion hole 12 extending in the axial direction of the iron core female screw 11 is provided in the fixed iron core 1a. A seat 12a may be provided in the insertion hole 12.
【００１１】実施例の特徴として、鉄心めねじ１１の軸
方向に向かう、すなわち挿通孔１２の軸方向に向かうカ
バーめねじ２２をカバー２１に設け、特別な開放ボルト
２３を予め用意する。この開放ボルト２３は、カバー２
１のカバーめねじ２２にねじ結合可能な外側おねじ２３
ａと、可動鉄心３の鉄心めねじ１１にねじ結合可能な内
側おねじ２３ｂと、外側おねじ２３ａと内側おねじ２３
ｂとの間の胴太部２３ｃと、外側おねじ２３ａの外端に
形成され外側おねじ２３ａの谷の径より細いねじ回し部
２３ｄとを備える。四角柱からなるねじ回し部２３ｄ
は、工具に適応するように、六角柱やすり割りや角穴で
もよい。As a feature of the embodiment, a cover female screw 22 that faces the iron core female screw 11 in the axial direction, that is, the axial direction of the insertion hole 12 is provided in the cover 21, and a special opening bolt 23 is prepared in advance. The open bolt 23 is used for the cover 2
External male thread 23 that can be screwed to the cover female thread 22 of No. 1
a, an inner male screw 23b capable of being screwed to the inner female screw 11 of the movable iron core 3, an outer male screw 23a, and an inner male screw 23.
It has a thick portion 23c between it and b, and a screwdriver portion 23d formed at the outer end of the outer male screw 23a and thinner than the diameter of the valley of the outer male screw 23a. Screwdriver part 23d consisting of a square pole
May be a hexagonal stud or square hole to accommodate the tool.
【００１２】開放ボルト２３の寸法は、外側おねじ２３
ａがカバーめねじ２２にねじ結合して胴太部２３ｃがカ
バー２１の内側に当接する状態で内側おねじ２３ｂが固
定鉄心１ａの内側端面より引き込んでいる。そして、外
側おねじ２３ａがカバーめねじ２２とねじ結合が外れて
胴太部２３ｃが固定鉄心１ａの外側端面に、この場合、
座１２ａの底に、当接する状態で内側おねじ２３ｂが鉄
心めねじ１１にねじ結合する関係にある。The dimensions of the open bolt 23 are as follows:
The inner male screw 23b is pulled in from the inner end surface of the fixed iron core 1a in a state in which a is screwed to the cover female screw 22 and the body portion 23c is in contact with the inner side of the cover 21. Then, the outer male thread 23a is disengaged from the cover female thread 22, and the body portion 23c is located on the outer end surface of the fixed iron core 1a.
The inner male thread 23b is in a relationship of being screwed to the iron core female thread 11 while being in contact with the bottom of the seat 12a.
【００１３】このような構造によれば、開放ボルト２３
の外側おねじ２３ａがカバーめねじ２２にねじ結合して
胴太部２３ｃがカバー２１の内側に当接する状態では、
図１に示すように、内側おねじ２３ｂが固定鉄心１ａの
内側端面より引き込んでいる。このため、内側おねじ２
３ｂの先端は運転中の制動時に可動鉄心３に干渉しない
し、開放ボルト２３の脱落、紛失の恐れもないし、カバ
ーめねじ２２が塞がれて防塵、防音性を損なわない。そ
して、外側おねじ２３ａとカバーめねじ２２とのねじ結
合を外すように回して内側おねじ２３ｂが鉄心めねじ１
１にねじ込まれ、胴太部２３ｃが固定鉄心１ａの外側端
面に、この場合、座１２ａの底に、当接する状態では、
図２に示すように、内側おねじ２３ｂが制動ばね２に抗
して可動鉄心３を固定鉄心１ａ側に引き戻して制動を手
動開放する。このため、カバー２１を取り外す必要がな
い。また、ねじ回し部２３ｄは外側おねじ２３ａの谷の
径より細いので、外側おねじ２３ａがカバーめねじ２２
から外れるときに、ねじ回し部２３ｄはカバーめねじ２
２に干渉しない。According to this structure, the opening bolt 23
In a state where the outer male screw 23a of the above is screwed to the cover female screw 22 and the thick body portion 23c abuts on the inner side of the cover 21,
As shown in FIG. 1, the inner male screw 23b is pulled in from the inner end surface of the fixed iron core 1a. Therefore, the inner male screw 2
The tip of 3b does not interfere with the movable iron core 3 during braking during operation, and there is no risk of the open bolt 23 falling off or being lost, and the cover female screw 22 is closed so that dustproof and soundproofing properties are not impaired. Then, the outer male screw 23a and the cover female screw 22 are turned so as to remove the screw connection, and the inner male screw 23b is turned into the iron core female screw 1.
In the state in which the thick body portion 23c abuts on the outer end surface of the fixed iron core 1a, in this case, the bottom of the seat 12a,
As shown in FIG. 2, the inner male screw 23b pulls the movable iron core 3 back to the fixed iron core 1a side against the braking spring 2 to manually release the braking. Therefore, it is not necessary to remove the cover 21. Further, since the screwdriver portion 23d is thinner than the diameter of the trough of the outer male screw 23a, the outer male screw 23a is covered with the cover female screw 22a.
When the screwdriver 23d is removed from the
Does not interfere with 2.
【００１４】[0014]
【発明の効果】この発明の手動開放装置を備える無励磁
電磁ブレーキによれば、無励磁電磁ブレーキの運転中に
は、開放ボルトの外側おねじがカバーのカバーめねじに
固着される。そして、電源が遮断されているとき、カバ
ーの外側から開放ボルトをねじ回せば、内側おねじが可
動鉄心を引き戻して制動を手動開放する。このため、無
励磁で制動状態の可動鉄心の手動開放がカバーを取り外
すことなく可能であるという効果があり、手動開放用の
開放ボルトの脱落、紛失の恐れがく、カバーの防塵、防
音性を損なわないという効果がある。According to the non-excited electromagnetic brake provided with the manual release device of the present invention, the outer male screw of the release bolt is fixed to the cover female screw of the cover during operation of the non-excited electromagnetic brake. Then, when the power is cut off, if the release bolt is screwed from the outside of the cover, the inner male screw pulls back the movable iron core to manually release the braking. For this reason, there is an effect that the movable iron core can be manually opened in a braking state without excitation without removing the cover, and there is no fear that the opening bolt for manual opening will fall out or be lost, and the dustproof and soundproof property of the cover will be impaired. There is an effect that there is no.
【図１】実施例の運転状態で制動中の半断面図FIG. 1 is a half sectional view during braking in an operating state according to an embodiment.
【図２】図１の手動開放状態の要部の断面図FIG. 2 is a cross-sectional view of a main part of FIG. 1 in a manually opened state.
【図３】従来例の運転状態で制動中の半断面図FIG. 3 is a half cross-sectional view during braking in an operating state of a conventional example
１ 電磁石 １ａ 固定鉄心 １ｂ コイル ２ 制動ばね ３ 可動鉄心 ４ 制動板 ５ 回転円板 ６ センタハブ ７ 軸受 ９ ブラケット １１ 鉄心めねじ １２ 挿通孔 ２１ カバー ２２ カバーめ
ねじ ２３ 開放ボルト ２３ａ 外側おね
じ ２３ｂ 内側おねじ ２３ｃ 胴太部 ２３ｄ ねじ回し部1 Electromagnet 1a Fixed Iron Core 1b Coil 2 Braking Spring 3 Movable Iron Core 4 Braking Plate 5 Rotating Disc 6 Center Hub 7 Bearing 9 Bracket 11 Iron Core Female Thread 12 Insertion Hole 21 Cover 22 Cover Female Thread 23 Open Bolt 23a Outside Male Thread 23b Inner Male Thread 23c Thick body 23d Screwdriver
Claims (1)
で押されて制動をする可動鉄心と、この可動鉄心と制動
板との間に配置される回転円板と、この回転円板と軸方
向に移動可能に結合されるセンタハブと、このセンタハ
ブに固定され軸受で支承される回転軸と、電磁石の固定
鉄心と制動板との相互位置を確保する連結部材とを備え
る無励磁電磁ブレーキにおいて、 この無励磁電磁ブレーキを電磁石側から囲む断面コ字状
のカバーと、固定鉄心の挿通孔に挿通される開放ボルト
とを備え、 この開放ボルトは、カバーのカバーめねじにねじ結合可
能な外側おねじと、可動鉄心の鉄心めねじにねじ結合可
能な内側おねじと、外側おねじと内側おねじとの間の胴
太部と、外側おねじの外端に形成され外側おねじの谷の
径より細いねじ回し部とを備え、 開放ボルトの寸法は、外側おねじが前記カバーめねじに
ねじ結合して胴太部がカバーに当接する状態で内側おね
じが固定鉄心の内側端面より引き込んでおり、外側おね
じが前記カバーめねじとねじ結合が外れて胴太部が固定
鉄心の外側端面に当接する状態で内側おねじが前記鉄心
めねじにねじ結合する関係にあることを特徴とする手動
開放装置を備える無励磁電磁ブレーキ。1. A movable core that is attracted by an electromagnet to release braking and is pressed by a braking spring to perform braking, a rotating disc disposed between the movable core and a braking plate, and the rotating disc. In a non-excited electromagnetic brake including a center hub movably coupled in an axial direction, a rotary shaft fixed to the center hub and supported by bearings, and a connecting member for ensuring mutual positions of a fixed iron core of an electromagnet and a braking plate. , A cover with a U-shaped cross section that surrounds the non-excitation electromagnetic brake from the electromagnet side, and an open bolt that is inserted into the through hole of the fixed iron core. The open bolt is an outer side that can be screwed to the cover female screw of the cover. A male thread, an inner male thread that can be screwed to the inner core female thread of the movable iron core, a body portion between the outer male thread and the inner male thread, and a trough of the outer male thread formed at the outer end of the outer male thread. With a screwdriver that is thinner than the diameter of The dimensions of the open bolt are as follows: the outer male screw is screwed to the cover female screw, and the inner male screw is pulled in from the inner end face of the fixed iron core with the thick body part contacting the cover. Non-excitation provided with a manual opening device, characterized in that the internal male screw is in screw connection with the core female screw in a state where the cover female screw and the screw connection are disengaged and the thick body portion contacts the outer end surface of the fixed iron core. Electromagnetic brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5181755A JPH0735176A (en) | 1993-07-23 | 1993-07-23 | Nonexciting electromagnetic brake equipped with manual opening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5181755A JPH0735176A (en) | 1993-07-23 | 1993-07-23 | Nonexciting electromagnetic brake equipped with manual opening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0735176A true JPH0735176A (en) | 1995-02-03 |
Family
ID=16106325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5181755A Pending JPH0735176A (en) | 1993-07-23 | 1993-07-23 | Nonexciting electromagnetic brake equipped with manual opening device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0735176A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6171141B1 (en) | 1996-11-25 | 2001-01-09 | Nippon Cable Systems | Fixing apparatus |
| KR100807124B1 (en) * | 2007-04-20 | 2008-02-27 | 주식회사 신라공업 | Housing of electric coil applied to automobile magnet clutch |
-
1993
- 1993-07-23 JP JP5181755A patent/JPH0735176A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6171141B1 (en) | 1996-11-25 | 2001-01-09 | Nippon Cable Systems | Fixing apparatus |
| US6332806B1 (en) | 1996-11-25 | 2001-12-25 | Nippon Cable System Inc. | Fixing apparatus |
| KR100807124B1 (en) * | 2007-04-20 | 2008-02-27 | 주식회사 신라공업 | Housing of electric coil applied to automobile magnet clutch |
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