WO2019031439A1 - Electromagnetic brake release tool - Google Patents
Electromagnetic brake release tool Download PDFInfo
- Publication number
- WO2019031439A1 WO2019031439A1 PCT/JP2018/029372 JP2018029372W WO2019031439A1 WO 2019031439 A1 WO2019031439 A1 WO 2019031439A1 JP 2018029372 W JP2018029372 W JP 2018029372W WO 2019031439 A1 WO2019031439 A1 WO 2019031439A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- brake
- release
- armature
- pieces
- electromagnetic brake
- Prior art date
Links
Images
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
Definitions
- the present invention relates to an electromagnetic brake releasing tool for manually releasing a brake state of a non-excitation type electromagnetic brake.
- a general non-excitation operation type electromagnetic brake mounts a brake disc relatively non-rotatably and axially movable on the outer periphery of a rotating shaft connected to a driven member, An armature movable in the axial direction of the rotation shaft and a fixed side plate are disposed on both sides of the brake disc, a brake spring biasing the armature toward the brake disc, an electromagnet facing the brake disc with the armature interposed therebetween, Is provided.
- a mechanism is added to the electromagnetic brake that can release the brake state by manual operation, and the brake state is often released to perform operations such as maintenance even during a power failure.
- a release lever is provided between the armature and the side plate, and the armature is moved away from the brake disc against the elasticity of the brake spring by tilting the release lever. To release the brake state.
- the operation plate and the movable plate are disposed opposite to each other in the axial direction on the side opposite to the side of the electromagnet attracting the armature, and the operation is performed between the operation plate and the movable plate
- a ball cam is provided to convert the radial movement of the plate into the axial movement of the movable plate, and the operation plate is integrated with an open screw screwed in the radial direction into the support of the electromagnet.
- a manual release device is provided having a configuration in which the plate is connected to the armature.
- the brake state can be released by screwing the open screw of the manual release device, and the brake released state can be maintained even after the screwing operation is completed.
- One of the reasons is the need for a pulling member that is axially connected to the armature through the electromagnet in the axial direction, which reduces the design freedom of the electromagnet and the armature.
- the components of the manual release device other than the pulling member are disposed on the side opposite to the side attracting the armature of the electromagnet, the entire electromagnetic brake is enlarged in the axial direction.
- a mechanism for releasing the brake state by manual operation is additionally provided, so there is also a problem that it is difficult to achieve both the operability at the time of releasing the brake and the compactness.
- this invention makes it a subject to provide the electromagnetic brake releasing tool which can release the brake state of a non-excitation type
- the present invention is directed to a brake disc mounted on an outer periphery of a rotation shaft to be braked so as to be relatively non-rotatable and axially movable, and to face one side of the brake disc
- An armature movably disposed in the axial direction of the rotating shaft, a side plate fixedly disposed facing the other side of the brake disc, and a brake spring biasing the armature toward the brake disc
- the electromagnet When the electromagnet is energized, the electromagnet resists the elasticity of the brake spring
- An electromagnetic brake releasing tool for use with a non-excitation type electromagnetic brake that is released from a brake disc by moving a armature away from the brake disc, comprising a pair of release pieces having a tapered ridge portion,
- a pair of scissor pieces having one of the pair of release pieces on one end side in the longitudinal direction and a handle on the other end side in the longitudinal direction can be pivoted to the support shaft at the respective longitudinal center portions
- the release pieces are integrated with one end of the scissor piece such that the tip end sides of the respective crests face each other in the rotational direction of the scissor piece, A pair of release pieces can be pushed simultaneously between the armature and the side plate with a single force with one hand, and the brake release operation can be performed efficiently and comfortably.
- each release piece has a mounting portion on the rear end side of the collar portion, and the mounting portion is the scale pieces. In the state inserted in the attachment hole formed in the end part of 1, it can be fixed to the said cap piece.
- the release pieces may be integrally formed on one end of the scissor piece.
- the electromagnetic brake releasing tool according to the present invention can release the braking state of the electromagnetic brake simply by pushing the pair of releasing pieces between the armature and the side plate of the non-excitation type electromagnetic brake as described above. It is possible to maintain the brake release state even after the completion of the pressing operation. Therefore, the electromagnetic brake to which this electromagnetic brake releasing tool is applied does not require a mechanism for releasing the brake by manual operation, and the structure is simple and it is easy to assemble and compact.
- the electromagnetic brake 11 has a substantially square plate-like rotor hub 13 fitted and fixed to the outer periphery of the rotary shaft 12 connected to a driven member (not shown), and can not rotate relative to the outer periphery of the rotor hub 13 and can move axially.
- a brake disk 14 mounted on the shaft, an armature 15 axially movably fitted on the outer periphery of the rotary shaft 12 at a position facing one side surface of the brake disk 14, and a rotor hub at a position facing the other side surface of the brake disk 14 Basically, the side plate 16 disposed so as not to interfere with the wheel 13, the brake spring 17 urging the armature 15 toward the brake disc 14, and the electromagnet 18 opposed to the brake disc 14 with the armature 15 interposed therebetween. It is done.
- the coil spring is used for the brake spring 17, another elastic member can also be employ
- the armature 15 and the side plate 16 are formed to be larger in diameter than the brake disc 14, and penetrate the armature 15 from the outer surface of the side plate 16 at a position radially outward of the outer periphery of the brake disc 14 to the electromagnet 18.
- the side plate 16 is fixed to the electromagnet 18 by a plurality of screws 19 to be screwed.
- the electromagnet 18 has a field core 20 fixed to an external fixing member (not shown) in a state where the rotary shaft 12 is rotatably passed, and an annular ring provided on an inner side surface (a surface facing the armature 15) of the field core 20. It consists of an exciting coil 21 accommodated in the groove.
- the field core 20 accommodates the brake springs 17 in a plurality of spring accommodation holes provided radially inward of the exciting coil 21, and the screws 19 are provided at positions radially outward of the exciting coil 21. It is screwed in.
- the non-excitation operation type electromagnetic brake 11 has the above-described configuration, and when the electromagnet 18 is energized, the electromagnet 18 brakes the armature 15 by attracting the armature 15 against the elasticity of the brake spring 17.
- the brake 14 is released from the disk 14 and the rotary shaft 12 is rotatably released together with the brake disk 14 and the rotor hub 13.
- the electromagnet 18 when the electromagnet 18 is de-energized due to a power failure or the like, the armature 15 biased by the brake spring 17 holds the brake disc 14 together with the side plate 16 to be in the brake state, and the brake disc 14 and the rotor hub 13
- the rotary shaft 12 is braked via the state (state of FIG. 1).
- FIGS. 3 and 4 show an electromagnetic brake releasing tool 1 of an embodiment applied to the electromagnetic brake 11 of the above configuration.
- the electromagnetic brake release tool 1 comprises a pair of release pieces 2 having a tapered ridge portion 2 a, a pair of wedge pieces 3 to which one of the release pieces 2 is attached at one end side in the longitudinal direction, and It comprises a support shaft 4 rotatably supporting a longitudinal central portion.
- Each release piece 2 is formed with a flat plate portion 2b continuously to the rear end (thick side end) of the collar portion 2a, and a substantially rectangular attachment portion 2c formed continuously to the rear end of the flat plate portion 2b.
- the attachment portion 2c is attached to one end side of the scissor piece 3 as described later.
- Each scale piece 3 has a receiving portion 3b for attaching the release piece 2 to one end in the longitudinal direction of a strip-shaped main body portion 3a curved in plan view, and a rectangular frame shape at the other end in the longitudinal direction of the main body portion 3a
- the grips 3c are respectively formed, and the vicinity of the other end of the main body 3a (the central portion in the longitudinal direction of the entire scale piece 3) is rotatably supported by the support shaft 4.
- the receiving portion 3b is formed with an attachment hole 3d having substantially the same cross-sectional shape as the attachment portion 2c of the release piece 2 and a part of the flat plate portion 2b on the end face on one end side of the scissor piece 3. Then, the release piece 2 is attached to the hook piece 3 by inserting the attachment portion 2c of the release piece 2 into the attachment hole 3d of the receiving portion 3b.
- each release piece 2 is fixed to the scissor piece 3 in a posture in which the tip end sides of the respective crests 2 a are opposed to each other in the rotation direction of the scissor piece 3.
- the support shaft 4 is composed of a bolt and a nut which are passed through the respective hook pieces 3 (see FIG. 5), and the bolt and the nut can be used to tighten the two hook pieces 3.
- each release piece 2 integrated with one end of the scissor piece 3 rotatably attached to the support shaft 4 of the electromagnetic brake release tool 1 is the armature 15 and the side plate 16 with one hand simultaneously with a small force.
- the brake release work can be done efficiently and easily because it can be pushed in between.
- the reaction force received by each release piece 2 from the armature 15 and the side plate 16 cancels components of the direction in which the release piece 2 is pushed in the axial direction, and pushes back the release piece 2 in the radial direction.
- the component is absorbed by the frictional force between the release piece 2 and the armature 15 and the side plate 16. Therefore, there is little possibility that the release piece 2 is pushed back and the electromagnetic brake 11 returns to the brake state even if the hand is released from the electromagnetic brake release tool 1 after the release operation of the release piece 2 is completed.
- the brake release state can be maintained more reliably by holding both pivot pieces 3 with the bolts and nuts of the support shaft 4 after the completion of the pressing operation and maintaining the rotational position of each support piece 3 around the support shaft 4 It is supposed to be.
- maintains the rotational position of each scissor piece in a brake release state is not limited to the spindle which consists of a volt
- this electromagnetic brake releasing tool 1 simply presses the flanges 2a of the pair of releasing pieces 2 from the tip to the space between the armature 15 of the electromagnetic brake 11 and the side plate 16 to set the brake state of the electromagnetic brake 11 Releasable is possible, and the brake released state can be maintained even after the pressing operation of the release piece 2 is completed. Therefore, the electromagnetic brake 11 performing the brake release with the electromagnetic brake releasing tool 1 can be made simple and easy to assemble and compact as compared with the conventional electromagnetic brake having a manual brake release mechanism. Moreover, since it is not necessary to continue operating the electromagnetic brake releasing tool 1 at the time of maintenance etc., it is possible to work efficiently by releasing the hand from the electromagnetic brake releasing tool 1.
- each release piece 2 is integrated with one end portion of the scissor piece 3 by inserting the mounting portion 2 c of each disengaging piece 2 into the mounting hole 3 d of the receiving portion 3 b of the scissor piece 3.
- Each release piece 2 is inserted into the mounting hole 3d of the receiving portion 3b of the scissor piece 3 as in the modification shown in FIG. It may be fixed by a screw 5 screwed into the mounting portion 2c, or may be formed integrally with the receiving portion 3b (one end portion) of the scissor piece 3 as in the modification shown in FIG.
- each release piece 2 is integrated with one end of the scale piece 3 so that the brake release operation can be performed efficiently and easily, but the collar portion 2a of the release piece 2 is pushed between the armature 15 and the side plate 16 It is also possible to perform the brake release operation with only the pair of release pieces 2 when a large force is not required. In this case, since the reaction force received by each release piece 2 is also reduced, the brake released state can be maintained even after the pressing operation of the release piece 2 is completed, even without the mechanism for holding the release piece 2.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
An electromagnetic brake release tool (1) uses a configuration wherein release pieces (2) having a tapered wedge portion (2a) are each attached to one end of each of a pair of scissor pieces (3) rotatably supported at the longitudinal center part thereof, said release pieces being attached such that the tip ends of the wedge portion (2a) oppose each other. As a result, merely by thrusting the wedge portion (2a) of the pair of release pieces (2) of this electromagnetic brake release tool (1) between a side plate (16) and an armature (15) of the electromagnetic brake (11) in the braked state, it is possible to separate the armature (16) from the brake disc (14) counter to the elastic force of a brake spring (17), thereby placing the electromagnetic brake (11) in the released state, and to maintain the released state even after the thrusting operation of the release pieces (2) is complete.
Description
本発明は、無励磁作動型の電磁ブレーキのブレーキ状態を手動操作で解除するための電磁ブレーキ解除具に関する。
The present invention relates to an electromagnetic brake releasing tool for manually releasing a brake state of a non-excitation type electromagnetic brake.
モータ駆動によって被駆動部材を作動させる産業機械等では、停電等によってモータが停止してしまったときに、被駆動部材が重力等の外力を受けて位置（姿勢）を変えることによって種々のトラブルが生じるおそれがある。このため、通常は、モータ停止時に被駆動部材の位置を保持するために無励磁作動型の電磁ブレーキを備えていることが多い。
In industrial machines that operate a driven member by motor drive, when the motor is stopped due to a power failure etc., the driven member receives external force such as gravity to change the position (posture), which causes various troubles. It may occur. For this reason, normally, in order to hold the position of the driven member when the motor is stopped, a non-excitation type electromagnetic brake is often provided.
一般的な無励磁作動型電磁ブレーキ（以下、単に「電磁ブレーキ」とも称する。）は、被駆動部材に連結された回転軸の外周にブレーキディスクを相対回転不能かつ軸方向移動可能に取り付け、そのブレーキディスクの両側に回転軸の軸方向に移動可能なアーマチュアと固定のサイドプレートを配するとともに、アーマチュアをブレーキディスクに向けて付勢するブレーキばねと、アーマチュアを挟んでブレーキディスクと対向する電磁石とを設けた構成となっている。
A general non-excitation operation type electromagnetic brake (hereinafter, also simply referred to as "electromagnetic brake") mounts a brake disc relatively non-rotatably and axially movable on the outer periphery of a rotating shaft connected to a driven member, An armature movable in the axial direction of the rotation shaft and a fixed side plate are disposed on both sides of the brake disc, a brake spring biasing the armature toward the brake disc, an electromagnet facing the brake disc with the armature interposed therebetween, Is provided.
そして、通常時は通電された電磁石がブレーキばねの弾力に抗してアーマチュアを吸引することにより、アーマチュアがブレーキディスクから離れてブレーキ解除状態となり、停電等で電磁石が非通電状態になったときには、ブレーキばねに付勢されたアーマチュアがサイドプレートとともにブレーキディスクを挟み付けることによってブレーキ状態となり、回転軸を制動して被駆動部材の位置を保持するようになっている。
When the energized electromagnet normally attracts the armature against the elastic force of the brake spring, the armature moves away from the brake disk and the brake is released, and the electromagnet is de-energized due to a power failure, etc. The armature biased with the brake spring clamps the brake disc together with the side plate to be in a braking state, and brakes the rotary shaft to hold the position of the driven member.
ところで、上記のような電磁ブレーキを組み込んだ産業機械等では、停電等でモータが停止したときに、被駆動部材の位置を保持することはできるが、手動で被駆動部材を動かすこともできなくなる。このため、停電中にメンテナンスを行う際に作業がやりにくいという問題があった。
By the way, in the industrial machine etc. which incorporated the above electromagnetic brakes, when a motor stops by a power failure etc., although the position of a driven member can be held, it becomes impossible also to move a driven member manually. . For this reason, there is a problem that it is difficult to work when performing maintenance during a power failure.
この問題に対しては、電磁ブレーキにそのブレーキ状態を手動操作で解除できる機構を付設し、停電中でもブレーキ状態を解除してメンテナンス等の作業を行えるようにしていることが多い。
In order to solve this problem, a mechanism is added to the electromagnetic brake that can release the brake state by manual operation, and the brake state is often released to perform operations such as maintenance even during a power failure.
例えば、下記特許文献１に記載された電磁ブレーキでは、アーマチュアとサイドプレートの間に解放レバーを設け、その解放レバーを傾動させることにより、アーマチュアをブレーキばねの弾力に抗してブレーキディスクから離反させてブレーキ状態を解除する方法がとられている。
For example, in the electromagnetic brake described in Patent Document 1 below, a release lever is provided between the armature and the side plate, and the armature is moved away from the brake disc against the elasticity of the brake spring by tilting the release lever. To release the brake state.
また、下記特許文献２に記載された電磁ブレーキは、電磁石のアーマチュアを吸引する側と反対の側に操作板と可動板を軸方向で対向させて配し、その操作板と可動板の間に、操作板の径方向移動を可動板の軸方向移動に変換するボールカムを設けるとともに、操作板を電磁石の支持部に径方向にねじ込まれる開放ねじと一体化し、電磁石を軸方向に貫通する牽引部材で可動板をアーマチュアに連結した構成の手動解放装置を備えている。そして、その手動解放装置の開放ねじをねじ込んで操作板を径方向移動させることにより、ボールカムの作用で可動板が牽引部材およびアーマチュアと一体にブレーキばねの弾力に抗して軸方向に移動し、アーマチュアがブレーキディスクから離れてブレーキ状態が解除されるようになっている。
Further, in the electromagnetic brake described in Patent Document 2 below, the operation plate and the movable plate are disposed opposite to each other in the axial direction on the side opposite to the side of the electromagnet attracting the armature, and the operation is performed between the operation plate and the movable plate A ball cam is provided to convert the radial movement of the plate into the axial movement of the movable plate, and the operation plate is integrated with an open screw screwed in the radial direction into the support of the electromagnet. A manual release device is provided having a configuration in which the plate is connected to the armature. Then, by screwing in the release screw of the manual release device and moving the operation plate radially, the movable plate moves in the axial direction against the elastic force of the brake spring integrally with the pulling member and the armature by the action of the ball cam The armature disengages from the brake disc and the brake is released.
しかしながら、上記特許文献１に記載の電磁ブレーキでは、解放レバーを傾動させてブレーキ状態を解除するようになっているので、停電中のメンテナンス等の際にブレーキ解除状態を維持するためには、解放レバーを元の状態に戻す方向に作用する反力に抗して解放レバーを傾動させ続ける必要があり、これがメンテナンス等の作業効率を低下させる一因となる。
However, in the electromagnetic brake described in Patent Document 1, the release lever is tilted to release the brake state. Therefore, in order to maintain the brake release state at the time of maintenance or the like during a power failure, release is performed. It is necessary to continue to tilt the release lever against the reaction force acting in the direction of returning the lever to the original state, which contributes to the reduction of the work efficiency such as maintenance.
一方、上記特許文献２に記載の電磁ブレーキでは、手動解放装置の開放ねじをねじ込めばブレーキ状態を解除でき、ねじ込み操作完了後もブレーキ解除状態を維持できるが、その手動解放装置の部品の一つとして電磁石を軸方向に貫通してアーマチュアに連結される牽引部材を必要とするため、電磁石やアーマチュアの設計自由度が低くなる。また、その牽引部材以外の手動解放装置の構成部品が電磁石のアーマチュアを吸引する側と反対の側に配されるため、電磁ブレーキ全体が軸方向に大型化してしまう。
On the other hand, in the electromagnetic brake described in Patent Document 2, the brake state can be released by screwing the open screw of the manual release device, and the brake released state can be maintained even after the screwing operation is completed. One of the reasons is the need for a pulling member that is axially connected to the armature through the electromagnet in the axial direction, which reduces the design freedom of the electromagnet and the armature. Further, since the components of the manual release device other than the pulling member are disposed on the side opposite to the side attracting the armature of the electromagnet, the entire electromagnetic brake is enlarged in the axial direction.
また、上記のいずれの電磁ブレーキでも、手動操作でブレーキ状態の解除を行うための機構を付設したものであるため、ブレーキ解除時の操作性とコンパクト性を両立することが難しいという問題もある。
Further, in any of the above-described electromagnetic brakes, a mechanism for releasing the brake state by manual operation is additionally provided, so there is also a problem that it is difficult to achieve both the operability at the time of releasing the brake and the compactness.
そこで、本発明は、無励磁作動型電磁ブレーキのブレーキ状態を簡単な手動操作で解除でき、かつ、その手動操作完了後もブレーキ解除状態を維持できる電磁ブレーキ解除具を提供することを課題とする。
Then, this invention makes it a subject to provide the electromagnetic brake releasing tool which can release the brake state of a non-excitation type | formula operation type electromagnetic brake by simple manual operation, and can maintain a brake release state even after the manual operation completion. .
上記の課題を解決するために、本発明は、制動対象となる回転軸の外周に、相対回転不能かつ軸方向移動可能に取り付けられたブレーキディスクと、前記ブレーキディスクの一側面と対向する状態で、前記回転軸の軸方向に移動可能に配されたアーマチュアと、前記ブレーキディスクの他側面と対向する状態で固定配置されたサイドプレートと、前記アーマチュアをブレーキディスクに向けて付勢するブレーキばねと、前記アーマチュアを挟んでブレーキディスクと対向する電磁石とを備え、前記電磁石に通電されていないときは、前記ブレーキばねに付勢されたアーマチュアがサイドプレートとともにブレーキディスクを挟み付けることによってブレーキ状態となり、前記電磁石に通電すると、前記電磁石がブレーキばねの弾力に抗してアーマチュアをブレーキディスクから離反させることによってブレーキ解除状態となる無励磁作動型の電磁ブレーキに対して用いられる電磁ブレーキ解除具であって、先細り形状の楔部を有する一対の解除片を備え、前記電磁ブレーキがブレーキ状態にあるときに、前記一対の解除片を、それぞれの楔部の先端側が前記回転軸を径方向で挟んで対向する姿勢で、前記アーマチュアとサイドプレートの間へ押し込むことにより、前記ブレーキばねの弾力に抗して前記アーマチュアをブレーキディスクから離反させて、前記電磁ブレーキをブレーキ解除状態とする構成の電磁ブレーキ解除具を採用したのである。
In order to solve the above-described problems, the present invention is directed to a brake disc mounted on an outer periphery of a rotation shaft to be braked so as to be relatively non-rotatable and axially movable, and to face one side of the brake disc An armature movably disposed in the axial direction of the rotating shaft, a side plate fixedly disposed facing the other side of the brake disc, and a brake spring biasing the armature toward the brake disc An electromagnet facing the brake disc with the armature interposed therebetween, and when the electromagnet is not energized, the armature biased with the brake spring holds the side disc together with the brake disc, thereby bringing about a brake state; When the electromagnet is energized, the electromagnet resists the elasticity of the brake spring An electromagnetic brake releasing tool for use with a non-excitation type electromagnetic brake that is released from a brake disc by moving a armature away from the brake disc, comprising a pair of release pieces having a tapered ridge portion, the electromagnetic When the brake is in the braking state, the pair of release pieces are pushed between the armature and the side plate in a posture in which the leading end sides of the respective ridges face each other across the rotational axis in the radial direction. The electromagnetic brake releasing device is adopted in which the armature is separated from the brake disc against the elasticity of the brake spring to bring the electromagnetic brake into the brake release state.
上記の構成によれば、先細り形状の楔部を有する一対の解除片を電磁ブレーキのアーマチュアとサイドプレートの間へ押し込むだけで、電磁ブレーキのブレーキ状態を解除することができる。また、ブレーキ解除状態では両解除片の楔部の先端側が回転軸を径方向で挟んで対向しており、各解除片がアーマチュアおよびサイドプレートから受ける反力は、解除片を軸方向に押す方向の成分が相殺され、解除片を径方向に押し戻す方向の成分が解除片とアーマチュアおよびサイドプレートとの間の摩擦力で吸収されるので、解除片の押込操作完了後もブレーキ解除状態を維持することができる。
According to the above configuration, it is possible to release the brake state of the electromagnetic brake simply by pushing the pair of release pieces having the tapered ridge portion between the armature and the side plate of the electromagnetic brake. Further, in the brake released state, the tip end sides of the flanges of both release pieces are opposed to each other with the rotation axis interposed in the radial direction, and the reaction force received by each release piece from the armature and side plate pushes the release pieces in the axial direction Of the component in the direction of pushing back the release piece in the radial direction is absorbed by the friction force between the release piece and the armature and side plate, so that the brake release state is maintained even after the release piece pressing operation is completed. be able to.
ここで、前記一対の解除片の一つを長手方向の一端側に有し、長手方向の他端側に把手を有する一対の鋏片が、それぞれの長手方向中央部で支軸に回動自在に取り付けられており、前記各解除片は、それぞれの楔部の先端側が前記鋏片の回動方向で互いに対向する姿勢で、前記鋏片の一端部に一体化されている構成とすれば、片手で一対の解除片を同時にかつ小さい力でアーマチュアとサイドプレートの間へ押し込むことができ、ブレーキ解除作業が効率よく楽に行えるようになる。
Here, a pair of scissor pieces having one of the pair of release pieces on one end side in the longitudinal direction and a handle on the other end side in the longitudinal direction can be pivoted to the support shaft at the respective longitudinal center portions The release pieces are integrated with one end of the scissor piece such that the tip end sides of the respective crests face each other in the rotational direction of the scissor piece, A pair of release pieces can be pushed simultaneously between the armature and the side plate with a single force with one hand, and the brake release operation can be performed efficiently and comfortably.
また、上記のような一対の鋏片で電磁ブレーキ解除具を構成する場合には、前記各解除片は、それぞれ楔部の後端側に取付部を有し、その取付部が前記各鋏片の一端部に形成された取付穴に挿入された状態で、前記鋏片に固定されているものとすることができる。あるいは、前記各解除片がそれぞれ前記鋏片の一端部に一体形成されている構成とすることもできる。
Further, when the electromagnetic brake releasing tool is constituted by the pair of scale pieces as described above, each release piece has a mounting portion on the rear end side of the collar portion, and the mounting portion is the scale pieces. In the state inserted in the attachment hole formed in the end part of 1, it can be fixed to the said cap piece. Alternatively, the release pieces may be integrally formed on one end of the scissor piece.
また、前記各解除片の楔部が前記アーマチュアとサイドプレートの間へ押し込まれた状態で、前記各鋏片の支軸のまわりの回動位置を保持する機構が設けられている構成とすれば、解除片の押込操作完了後のブレーキ解除状態の維持がより確実に行えるようになる。
In addition, in a state where the collar portion of each release piece is pushed between the armature and the side plate, a mechanism is provided which holds the rotational position around the support shaft of each scale piece. As a result, the brake release state can be more reliably maintained after the completion of the pressing operation of the release piece.
本発明の電磁ブレーキ解除具は、上述したように、一対の解除片を無励磁作動型電磁ブレーキのアーマチュアとサイドプレートの間へ押し込むだけで、電磁ブレーキのブレーキ状態を解除可能であり、解除片の押込操作完了後もブレーキ解除状態を維持することが可能である。したがって、この電磁ブレーキ解除具の適用対象となる電磁ブレーキは、手動操作でブレーキ解除を行うための機構が不要となり、構造が簡単で組み立てやすくコンパクトなものとなる。
The electromagnetic brake releasing tool according to the present invention can release the braking state of the electromagnetic brake simply by pushing the pair of releasing pieces between the armature and the side plate of the non-excitation type electromagnetic brake as described above. It is possible to maintain the brake release state even after the completion of the pressing operation. Therefore, the electromagnetic brake to which this electromagnetic brake releasing tool is applied does not require a mechanism for releasing the brake by manual operation, and the structure is simple and it is easy to assemble and compact.
以下、図面に基づき、本発明の実施形態を説明する。図１および図２は、実施形態の電磁ブレーキ解除具の適用対象となる無励磁作動型電磁ブレーキを示す。この電磁ブレーキ１１は、被駆動部材（図示省略）に連結された回転軸１２の外周に嵌合固定される略正方形板状のロータハブ１３と、ロータハブ１３の外周に相対回転不能かつ軸方向移動可能に取り付けられたブレーキディスク１４と、ブレーキディスク１４の一側面に対向する位置で回転軸１２の外周に軸方向移動可能に嵌め込まれたアーマチュア１５と、ブレーキディスク１４の他側面に対向する位置でロータハブ１３と干渉しないように配されたサイドプレート１６と、アーマチュア１５をブレーキディスク１４に向けて付勢するブレーキばね１７と、アーマチュア１５を挟んでブレーキディスク１４と対向する電磁石１８とで基本的に構成されている。なお、ブレーキばね１７はコイルばねが用いられているが、他の弾性部材を採用することもできる。
Hereinafter, embodiments of the present invention will be described based on the drawings. 1 and 2 show a non-excitation type electromagnetic brake to which the electromagnetic brake releasing device of the embodiment is applied. The electromagnetic brake 11 has a substantially square plate-like rotor hub 13 fitted and fixed to the outer periphery of the rotary shaft 12 connected to a driven member (not shown), and can not rotate relative to the outer periphery of the rotor hub 13 and can move axially. A brake disk 14 mounted on the shaft, an armature 15 axially movably fitted on the outer periphery of the rotary shaft 12 at a position facing one side surface of the brake disk 14, and a rotor hub at a position facing the other side surface of the brake disk 14 Basically, the side plate 16 disposed so as not to interfere with the wheel 13, the brake spring 17 urging the armature 15 toward the brake disc 14, and the electromagnet 18 opposed to the brake disc 14 with the armature 15 interposed therebetween. It is done. In addition, although the coil spring is used for the brake spring 17, another elastic member can also be employ | adopted.
前記アーマチュア１５およびサイドプレート１６はブレーキディスク１４よりも大径に形成されており、ブレーキディスク１４の外周よりも径方向外側の位置でサイドプレート１６の外側面からアーマチュア１５を貫通して電磁石１８にねじ込まれる複数のねじ１９により、サイドプレート１６が電磁石１８に固定されている。
The armature 15 and the side plate 16 are formed to be larger in diameter than the brake disc 14, and penetrate the armature 15 from the outer surface of the side plate 16 at a position radially outward of the outer periphery of the brake disc 14 to the electromagnet 18. The side plate 16 is fixed to the electromagnet 18 by a plurality of screws 19 to be screwed.
前記電磁石１８は、回転軸１２を回転自在に通す状態で図示省略した外部の固定部材に固定されるフィールドコア２０と、フィールドコア２０の内側面（アーマチュア１５と対向する面）に設けられた環状溝に収容される励磁コイル２１とからなる。そのフィールドコア２０は、励磁コイル２１よりも径方向内側に設けられた複数のばね収容穴にそれぞれ前記ブレーキばね１７を収容しており、励磁コイル２１よりも径方向外側の部位に前記ねじ１９をねじ込まれている。
The electromagnet 18 has a field core 20 fixed to an external fixing member (not shown) in a state where the rotary shaft 12 is rotatably passed, and an annular ring provided on an inner side surface (a surface facing the armature 15) of the field core 20. It consists of an exciting coil 21 accommodated in the groove. The field core 20 accommodates the brake springs 17 in a plurality of spring accommodation holes provided radially inward of the exciting coil 21, and the screws 19 are provided at positions radially outward of the exciting coil 21. It is screwed in.
この無励磁作動型の電磁ブレーキ１１は、上記の構成であり、電磁石１８に通電されたときは、電磁石１８がブレーキばね１７の弾力に抗してアーマチュア１５を吸引することにより、アーマチュア１５がブレーキディスク１４から離れてブレーキ解除状態となり、ブレーキディスク１４およびロータハブ１３とともに回転軸１２を回転自在に解放する。一方、停電等で電磁石１８が非通電状態になったときには、ブレーキばね１７に付勢されたアーマチュア１５がサイドプレート１６とともにブレーキディスク１４を挟み付けることによってブレーキ状態となり、ブレーキディスク１４およびロータハブ１３を介して回転軸１２を制動する（図１の状態）。
The non-excitation operation type electromagnetic brake 11 has the above-described configuration, and when the electromagnet 18 is energized, the electromagnet 18 brakes the armature 15 by attracting the armature 15 against the elasticity of the brake spring 17. The brake 14 is released from the disk 14 and the rotary shaft 12 is rotatably released together with the brake disk 14 and the rotor hub 13. On the other hand, when the electromagnet 18 is de-energized due to a power failure or the like, the armature 15 biased by the brake spring 17 holds the brake disc 14 together with the side plate 16 to be in the brake state, and the brake disc 14 and the rotor hub 13 The rotary shaft 12 is braked via the state (state of FIG. 1).
図３および図４は、上記構成の電磁ブレーキ１１に適用される実施形態の電磁ブレーキ解除具１を示す。この電磁ブレーキ解除具１は、先細り形状の楔部２ａを有する一対の解除片２と、長手方向の一端側に解除片２の一つを取り付けられる一対の鋏片３と、両鋏片３の長手方向中央部を回動自在に支持する支軸４とからなる。
FIGS. 3 and 4 show an electromagnetic brake releasing tool 1 of an embodiment applied to the electromagnetic brake 11 of the above configuration. The electromagnetic brake release tool 1 comprises a pair of release pieces 2 having a tapered ridge portion 2 a, a pair of wedge pieces 3 to which one of the release pieces 2 is attached at one end side in the longitudinal direction, and It comprises a support shaft 4 rotatably supporting a longitudinal central portion.
前記各解除片２は、楔部２ａの後端（厚肉側端）に連続して平板部２ｂが形成され、平板部２ｂの後端に連続して略直方体状の取付部２ｃが形成されており、その取付部２ｃで後述するように鋏片３の一端側に取り付けられるようになっている。
Each release piece 2 is formed with a flat plate portion 2b continuously to the rear end (thick side end) of the collar portion 2a, and a substantially rectangular attachment portion 2c formed continuously to the rear end of the flat plate portion 2b. The attachment portion 2c is attached to one end side of the scissor piece 3 as described later.
前記各鋏片３は、平面視で湾曲している帯状の本体部３ａの長手方向の一端に解除片２を取り付けるための受入部３ｂが、本体部３ａの長手方向の他端に矩形枠状の把手３ｃがそれぞれ形成されており、本体部３ａの他端近傍（鋏片３全体の長手方向中央部）を支軸４に回動自在に支持されている。その受入部３ｂは、鋏片３の一端側の端面に、解除片２の取付部２ｃおよび平板部２ｂの一部とほぼ同じ断面形状の取付穴３ｄが形成されている。そして、その受入部３ｂの取付穴３ｄに解除片２の取付部２ｃを挿入することにより、解除片２が鋏片３に取り付けられるようになっている。
Each scale piece 3 has a receiving portion 3b for attaching the release piece 2 to one end in the longitudinal direction of a strip-shaped main body portion 3a curved in plan view, and a rectangular frame shape at the other end in the longitudinal direction of the main body portion 3a The grips 3c are respectively formed, and the vicinity of the other end of the main body 3a (the central portion in the longitudinal direction of the entire scale piece 3) is rotatably supported by the support shaft 4. The receiving portion 3b is formed with an attachment hole 3d having substantially the same cross-sectional shape as the attachment portion 2c of the release piece 2 and a part of the flat plate portion 2b on the end face on one end side of the scissor piece 3. Then, the release piece 2 is attached to the hook piece 3 by inserting the attachment portion 2c of the release piece 2 into the attachment hole 3d of the receiving portion 3b.
ここで、各鋏片３の受入部３ｂの取付穴３ｄは、解除片２の平板部２ｂの一部を受け入れるスリット部分が鋏片本体部３ａの凹側に開口している。これにより、各解除片２は、それぞれの楔部２ａの先端側が鋏片３の回動方向で互いに対向する姿勢で、鋏片３に固定されている。
Here, in the mounting hole 3 d of the receiving portion 3 b of each scale piece 3, a slit portion for receiving a part of the flat plate portion 2 b of the release piece 2 is opened on the concave side of the scale piece main portion 3 a. Thereby, each release piece 2 is fixed to the scissor piece 3 in a posture in which the tip end sides of the respective crests 2 a are opposed to each other in the rotation direction of the scissor piece 3.
前記支軸４は、各鋏片３に通されるボルトとナットとで構成され（図５参照）、そのボルトとナットで両鋏片３を締め付けることができるものとなっている。
The support shaft 4 is composed of a bolt and a nut which are passed through the respective hook pieces 3 (see FIG. 5), and the bolt and the nut can be used to tighten the two hook pieces 3.
この電磁ブレーキ解除具１を用いて前記電磁ブレーキ１１のブレーキ状態（図１の状態）を解除しようとするときは、図５に示すように、電磁ブレーキ解除具１の両解除片２の楔部２ａの先端側が回転軸１２を径方向で挟んで対向するようにセットし、両鋏片３の把手３ｃを握り込むことにより両鋏片３を回動させて、各解除片２をアーマチュア１５とサイドプレート１６の間（ブレーキディスク１４の径方向外側）へ押し込んでいく。これにより、ブレーキばね１７の弾力に抗してアーマチュア１５をブレーキディスク１４から離反させて、電磁ブレーキ１１をブレーキ解除状態とすることができる。
When it is going to release the brake state (the state of FIG. 1) of the electromagnetic brake 11 using this electromagnetic brake releasing tool 1, as shown in FIG. 5, the ridges of both releasing pieces 2 of the electromagnetic brake releasing tool 1 The tip end side of 2a is set so as to be opposite to sandwich the rotary shaft 12 in the radial direction, and by grasping the grips 3c of the both pieces 3, the two pieces 3 are rotated to rotate each release piece 2 with the armature 15. It is pushed in between the side plates 16 (radially outside of the brake disc 14). Thereby, the armature 15 can be separated from the brake disc 14 against the elastic force of the brake spring 17, and the electromagnetic brake 11 can be put in the brake release state.
このとき、電磁ブレーキ解除具１の支軸４に回動自在に取り付けられた鋏片３の一端部に一体化された各解除片２は、片手で同時にかつ小さい力でアーマチュア１５とサイドプレート１６の間へ押し込めるので、ブレーキ解除作業は効率よく楽に行うことができる。
At this time, each release piece 2 integrated with one end of the scissor piece 3 rotatably attached to the support shaft 4 of the electromagnetic brake release tool 1 is the armature 15 and the side plate 16 with one hand simultaneously with a small force. The brake release work can be done efficiently and easily because it can be pushed in between.
また、このブレーキ解除状態では、各解除片２がアーマチュア１５およびサイドプレート１６から受ける反力は、解除片２を軸方向に押す方向の成分が相殺され、解除片２を径方向に押し戻す方向の成分が解除片２とアーマチュア１５およびサイドプレート１６との間の摩擦力で吸収される。したがって、解除片２の押込操作完了後に電磁ブレーキ解除具１から手を離しても、解除片２が押し戻されて電磁ブレーキ１１がブレーキ状態に戻るおそれは少ないが、この実施形態では、解除片２の押込操作完了後に支軸４のボルトとナットで両鋏片３を締め付けて、各鋏片３の支軸４のまわりの回動位置を保持することにより、より確実にブレーキ解除状態を維持できるようになっている。
Further, in this brake release state, the reaction force received by each release piece 2 from the armature 15 and the side plate 16 cancels components of the direction in which the release piece 2 is pushed in the axial direction, and pushes back the release piece 2 in the radial direction. The component is absorbed by the frictional force between the release piece 2 and the armature 15 and the side plate 16. Therefore, there is little possibility that the release piece 2 is pushed back and the electromagnetic brake 11 returns to the brake state even if the hand is released from the electromagnetic brake release tool 1 after the release operation of the release piece 2 is completed. The brake release state can be maintained more reliably by holding both pivot pieces 3 with the bolts and nuts of the support shaft 4 after the completion of the pressing operation and maintaining the rotational position of each support piece 3 around the support shaft 4 It is supposed to be.
なお、ブレーキ解除状態で各鋏片の回動位置を保持する機構は、実施形態のようなボルトとナットからなる支軸に限らず、適宜のものを用いることができる。
In addition, the mechanism which hold | maintains the rotational position of each scissor piece in a brake release state is not limited to the spindle which consists of a volt | bolt and a nut like embodiment, An appropriate thing can be used.
この電磁ブレーキ解除具１は、上述したように、一対の解除片２の楔部２ａをその先端から電磁ブレーキ１１のアーマチュア１５とサイドプレート１６の間へ押し込むだけで、電磁ブレーキ１１のブレーキ状態を解除可能にし、解除片２の押込操作完了後もブレーキ解除状態を維持できる。したがって、この電磁ブレーキ解除具１でブレーキ解除を行う電磁ブレーキ１１は、従来の手動のブレーキ解除機構を有する電磁ブレーキに比べて、構造が簡単で組み立てやすくコンパクトなものとすることができる。また、メンテナンス等の際に、電磁ブレーキ解除具１を操作し続ける必要がないので、電磁ブレーキ解除具１から手を離して効率よく作業することができる。
As described above, this electromagnetic brake releasing tool 1 simply presses the flanges 2a of the pair of releasing pieces 2 from the tip to the space between the armature 15 of the electromagnetic brake 11 and the side plate 16 to set the brake state of the electromagnetic brake 11 Releasable is possible, and the brake released state can be maintained even after the pressing operation of the release piece 2 is completed. Therefore, the electromagnetic brake 11 performing the brake release with the electromagnetic brake releasing tool 1 can be made simple and easy to assemble and compact as compared with the conventional electromagnetic brake having a manual brake release mechanism. Moreover, since it is not necessary to continue operating the electromagnetic brake releasing tool 1 at the time of maintenance etc., it is possible to work efficiently by releasing the hand from the electromagnetic brake releasing tool 1.
上述した実施形態では、各解除片２の取付部２ｃを鋏片３の受入部３ｂの取付穴３ｄに挿入することにより、各解除片２を鋏片３の一端部に一体化しているが、各解除片２は、図６に示す変形例のように、その取付部２ｃを鋏片３の受入部３ｂの取付穴３ｄに挿入した後、鋏片本体部３ａの凸側から解除片２の取付部２ｃにねじ込まれるねじ５で固定するようにしてもよいし、図７に示す変形例のように、鋏片３の受入部３ｂ（一端部）と一体に形成してもよい。
In the embodiment described above, each release piece 2 is integrated with one end portion of the scissor piece 3 by inserting the mounting portion 2 c of each disengaging piece 2 into the mounting hole 3 d of the receiving portion 3 b of the scissor piece 3. Each release piece 2 is inserted into the mounting hole 3d of the receiving portion 3b of the scissor piece 3 as in the modification shown in FIG. It may be fixed by a screw 5 screwed into the mounting portion 2c, or may be formed integrally with the receiving portion 3b (one end portion) of the scissor piece 3 as in the modification shown in FIG.
また、実施形態ではブレーキ解除作業が効率よく楽に行えるように各解除片２を鋏片３の一端部に一体化したが、解除片２の楔部２ａをアーマチュア１５とサイドプレート１６の間へ押し込むのに大きな力を必要としない場合は、一対の解除片２のみでブレーキ解除作業を行うことも可能である。なお、この場合、各解除片２が受ける反力も小さくなるので、解除片２の押込操作完了後には、解除片２を保持する機構がなくてもブレーキ解除状態を維持することができる。
In the embodiment, each release piece 2 is integrated with one end of the scale piece 3 so that the brake release operation can be performed efficiently and easily, but the collar portion 2a of the release piece 2 is pushed between the armature 15 and the side plate 16 It is also possible to perform the brake release operation with only the pair of release pieces 2 when a large force is not required. In this case, since the reaction force received by each release piece 2 is also reduced, the brake released state can be maintained even after the pressing operation of the release piece 2 is completed, even without the mechanism for holding the release piece 2.
１ 電磁ブレーキ解除具
２ 解除片
２ａ 楔部
２ｃ 取付部
３ 鋏片
３ｃ 把手
４ 支軸
５ ねじ
１１ 電磁ブレーキ
１２ 回転軸
１３ ロータハブ
１４ ブレーキディスク
１５ アーマチュア
１６ サイドプレート
１７ ブレーキばね
１８ 電磁石 DESCRIPTION OFSYMBOLS 1 electromagnetic brake releasing tool 2 releasing piece 2a flange 2c attaching part 3 flange 3c handle 4 supporting shaft 5 screw 11 electromagnetic brake 12 rotating shaft 13 rotor hub 14 brake disk 15 armature 16 side plate 17 brake spring 18 electromagnet
２ 解除片
２ａ 楔部
２ｃ 取付部
３ 鋏片
３ｃ 把手
４ 支軸
５ ねじ
１１ 電磁ブレーキ
１２ 回転軸
１３ ロータハブ
１４ ブレーキディスク
１５ アーマチュア
１６ サイドプレート
１７ ブレーキばね
１８ 電磁石 DESCRIPTION OF
Claims (5)
- 制動対象となる回転軸の外周に、相対回転不能かつ軸方向移動可能に取り付けられたブレーキディスクと、前記ブレーキディスクの一側面と対向する状態で、前記回転軸の軸方向に移動可能に配されたアーマチュアと、前記ブレーキディスクの他側面と対向する状態で固定配置されたサイドプレートと、前記アーマチュアをブレーキディスクに向けて付勢するブレーキばねと、前記アーマチュアを挟んでブレーキディスクと対向する電磁石とを備え、前記電磁石に通電されていないときは、前記ブレーキばねに付勢されたアーマチュアがサイドプレートとともにブレーキディスクを挟み付けることによってブレーキ状態となり、前記電磁石に通電すると、前記電磁石がブレーキばねの弾力に抗してアーマチュアをブレーキディスクから離反させることによってブレーキ解除状態となる無励磁作動型の電磁ブレーキに対して用いられる電磁ブレーキ解除具であって、
先細り形状の楔部を有する一対の解除片を備え、前記電磁ブレーキがブレーキ状態にあるときに、前記一対の解除片を、それぞれの楔部の先端側が前記回転軸を径方向で挟んで対向する姿勢で、前記アーマチュアとサイドプレートの間へ押し込むことにより、前記ブレーキばねの弾力に抗して前記アーマチュアをブレーキディスクから離反させて、前記電磁ブレーキをブレーキ解除状態とすることを特徴とする電磁ブレーキ解除具。 It is disposed movably in the axial direction of the rotary shaft in a state of facing the brake disc mounted on the outer periphery of the rotary shaft to be braked against relative rotation and movably in the axial direction and facing one side of the brake disc. An armature, a side plate fixedly disposed facing the other side of the brake disc, a brake spring biasing the armature toward the brake disc, and an electromagnet facing the brake disc with the armature interposed therebetween When the electromagnet is not energized, the armature biased with the brake spring holds the brake disc together with the side plate to be in a brake state, and when the electromagnet is energized, the electromagnet exerts an elastic force of the brake spring. Away the armature from the brake disc against An electromagnetic brake release tool used for the non-excitation type electromagnetic brake comprising a brake release state by Rukoto,
A pair of release pieces having a tapered ridge portion, and when the electromagnetic brake is in a brake state, the tip sides of the respective ridge portions face each other across the rotation shaft in the radial direction when the release lever is in the brake state. An electromagnetic brake characterized in that by pressing between the armature and the side plate in posture, the armature is separated from the brake disc against the elastic force of the brake spring to bring the electromagnetic brake into the brake release state. Release tool. - 前記一対の解除片の一つを長手方向の一端側に有し、長手方向の他端側に把手を有する一対の鋏片が、それぞれの長手方向中央部で支軸に回動自在に取り付けられており、
前記各解除片は、それぞれの楔部の先端側が前記鋏片の回動方向で互いに対向する姿勢で、前記鋏片の一端部に一体化されていることを特徴とする請求項１に記載の電磁ブレーキ解除具。 A pair of scissor pieces having one of the pair of release pieces on one end side in the longitudinal direction and a handle on the other end side in the longitudinal direction are rotatably attached to the support shaft at their respective longitudinal center portions Yes,
The respective release pieces are integrated with one end of the scissor piece in a posture in which the tip end sides of the respective crests face each other in the rotational direction of the scissor piece. Electromagnetic brake release tool. - 前記各解除片は、それぞれ楔部の後端側に取付部を有し、その取付部が前記各鋏片の一端部に形成された取付穴に挿入された状態で、前記鋏片に固定されていることを特徴とする請求項２に記載の電磁ブレーキ解除具。 Each of the release pieces has a mounting portion on the rear end side of the collar portion, and is fixed to the collar piece in a state where the mounting portion is inserted into a mounting hole formed at one end of each of the collar pieces. The electromagnetic brake releasing tool according to claim 2, characterized in that:
- 前記各解除片がそれぞれ前記鋏片の一端部に一体形成されていることを特徴とする請求項２に記載の電磁ブレーキ解除具。 The electromagnetic brake releasing tool according to claim 2, wherein each of the release pieces is integrally formed at one end of the scissor piece.
- 前記各解除片の楔部が前記アーマチュアとサイドプレートの間へ押し込まれた状態で、前記各鋏片の支軸のまわりの回動位置を保持する機構が設けられていることを特徴とする請求項２乃至４のいずれかに記載の電磁ブレーキ解除具。 A mechanism is provided which holds a pivoting position of each of the scissor pieces about the support shaft in a state where the scissor portion of each of the release pieces is pushed between the armature and the side plate. The electromagnetic brake releasing tool according to any one of Items 2 to 4.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-155831 | 2017-08-10 | ||
| JP2017155831A JP2019035443A (en) | 2017-08-10 | 2017-08-10 | Electromagnetic brake releasing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2019031439A1 true WO2019031439A1 (en) | 2019-02-14 |
Family
ID=65272055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2018/029372 WO2019031439A1 (en) | 2017-08-10 | 2018-08-06 | Electromagnetic brake release tool |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2019035443A (en) |
| WO (1) | WO2019031439A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7251452B2 (en) | 2019-11-15 | 2023-04-04 | 株式会社豊田自動織機 | brake system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54109576A (en) * | 1977-12-12 | 1979-08-28 | Verlinde Sa | Brake device |
| JP2000027901A (en) * | 1998-07-14 | 2000-01-25 | Ogura Clutch Co Ltd | Non-excited actuation type electromagnetic brake |
| JP2009108928A (en) * | 2007-10-30 | 2009-05-21 | Ogura Clutch Co Ltd | Manual release device for deenergized operating brake |
-
2017
- 2017-08-10 JP JP2017155831A patent/JP2019035443A/en active Pending
-
2018
- 2018-08-06 WO PCT/JP2018/029372 patent/WO2019031439A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54109576A (en) * | 1977-12-12 | 1979-08-28 | Verlinde Sa | Brake device |
| JP2000027901A (en) * | 1998-07-14 | 2000-01-25 | Ogura Clutch Co Ltd | Non-excited actuation type electromagnetic brake |
| JP2009108928A (en) * | 2007-10-30 | 2009-05-21 | Ogura Clutch Co Ltd | Manual release device for deenergized operating brake |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019035443A (en) | 2019-03-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9903430B2 (en) | Brake system and electric motor | |
| JP4119229B2 (en) | Electric parking brake mechanism | |
| US20050077782A1 (en) | Electrically driven parking brake device | |
| JP2017197164A (en) | Electrically-driven type brake | |
| US11965559B2 (en) | Bearing assembly | |
| US4022301A (en) | Spring-applied electromagnetically-released brake | |
| JP2009542999A (en) | Electromechanically switchable shape-coupled freewheel, electromechanical brake for an automobile with such a freewheel, and method for adjusting the air gap of such a brake | |
| JP4320461B2 (en) | Automatic reduction ratio switching device | |
| WO2019031439A1 (en) | Electromagnetic brake release tool | |
| JPS6037427A (en) | Disc brake | |
| US20230392656A1 (en) | Brake Device, Drive Unit, and Industrial Device | |
| JP5471445B2 (en) | Elevator hoisting machine and brake device | |
| JP7167349B2 (en) | Brake assembly and method for controlling the brake assembly | |
| JP2005147170A (en) | Electrically-powered braking unit | |
| JP2002372078A (en) | Deenergizing actuated brake | |
| JP2002059312A (en) | Power tool | |
| JP5782304B2 (en) | Non-excitation brake | |
| JP2009108928A (en) | Manual release device for deenergized operating brake | |
| JP2012167742A (en) | Cover attachment structure of non-excited brake | |
| JP4009286B2 (en) | Braking device for hoisting machine | |
| JP2003113877A5 (en) | ||
| JP6339491B2 (en) | Screw driver | |
| WO2018235680A1 (en) | Work tool | |
| CN217081186U (en) | Electromagnetic brake, driving system and engineering vehicle | |
| JPH0141852B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 18844139 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 18844139 Country of ref document: EP Kind code of ref document: A1 |