JP2000143131A - Braking device for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a braking device for an elevator capable of easily coping with various kinds of equipments and almost free from the constraint on the installation space. SOLUTION: A mount frame is mounted in a opposition to a rotary cylindrical surface of a rotary body 5 pivoted on a fixed part 1, and one end of an arm body 16 is pivoted on one side end of this mount frame. One side of a braking piece 18 opposite to the rotary cylindrical surface of the rotary body 5 is pivoted on the longitudinal intermediate part of the arm body 16, and an electromagnetic coil 23 is mounted on the mount frame. One end of an operating shaft 24 having a sucker 26 is connected to the arm body 16 and inserted into the electromagnetic coil 23, and further a pressing means 29 for energizing the arm body 16 in the rotary cylindrical surface direction of the rotary body 5 is mounted. The structural members such as the mount frame, the arm body 16, the braking piece 18 or the like of a braking device 33 are independently or integrally assembled and mounted to the fixing part of an equipment such as a hoist.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator braking device for braking a rotating body such as a sheave of a hoist.

[0002]

2. Description of the Related Art FIGS. 7 to 9 show a conventional elevator braking device. FIG. 7 is a front view of an elevator hoisting machine, and FIG. 8 is a right side view of FIG. 7 showing the braking device of FIG. FIG. 9
9 is a diagram showing a non-braking state of the braking device of FIG. In the figure, 1 is a fixed portion of the hoisting machine, 2 is an electric motor provided on the fixed portion 1, 3 is an output shaft of the electric motor 2, 4 is a drive sheave fixed to the output shaft 3, and 5 is an output shaft 3. It is a fixed braking drum.

Reference numeral 6 denotes a brake drum 5 projecting from the electric motor 2.
A supporting arm 7 is provided on the supporting arm 6 and an actuator 8 is provided on the supporting arm 6. Reference numeral 9 denotes an arm body, the lower end of which is pivotally attached to the fixed part 1, and the upper end of which is arranged at a position facing the support arm 6. Reference numeral 10 denotes a pressing mechanism that is provided on the support arm 6 and that includes a spring that urges the upper end of the arm body 9 toward the support arm 6.

[0004] Reference numeral 11 denotes a transmission bracket, which is L-shaped and has an L-shaped bent portion pivotally connected to the support arm 6 by a pin 12, one end of which contacts the actuator 8 of the electromagnet device 7, and the other end of which is the upper end of the arm 9. It is arranged in contact with a transmission bolt 13 provided on the side. 14
Reference numeral denotes a braking piece, which is mounted in the middle of the arm body 9 in the longitudinal direction and is arranged so as to face the braking surface of the braking drum 5, that is, the rotating cylindrical surface.

[0005] The conventional elevator braking device is constructed as described above.
Is extinguished. Then, the brake piece 14 is pressed by the pressing mechanism 10 via the arm body 9 against the rotating cylindrical surface of the brake drum 5, and the brake drum 5 is frictionally braked as shown in FIG.

When the elevator is started, the electromagnet device 7 is urged to operate the actuator 8, whereby the transmission fitting 11 is rotated against the pressing force of the pressing mechanism 10, and is transmitted through the transmission bolt 13. The arm body 9 is displaced away from the support arm 6. Then, as shown in FIG. 9, the braking piece 14 separates from the braking drum 5, and the friction braking of the braking drum 5 is released.

[0007]

In the above-described conventional braking device for an elevator, the electromagnet device 7, the arm 9, the pressing mechanism 10, the transmission fitting, and the like are assembled to the hoist. Therefore, it is difficult to use the same for a hoist having a different shape and a different method, and there is a problem that productivity is reduced.

The actuator 8 of the electromagnet device 7 operates in the vertical direction, whereby the brake piece 14 operates in the horizontal direction via the arm 9. Therefore, a space for the braking device is required outside the diameter of the braking drum 5 in both the vertical direction and the horizontal direction in FIG. Therefore, the installation of the hoist is restricted depending on the space condition of the installation place.

In addition, the braking piece 1 is rotated by the rotation of the arm 9.
4 is displaced, so that the end of the brake piece 14 on the fixed part 1 side, that is, the end of the brake piece 14 corresponding to the pivotally connected side of the fixed part 1 of the arm body 9 and the brake drum 5 during non-braking. In order to form the required gap, it is necessary to increase the operation stroke of the actuator 8 of the electromagnet device 7. Therefore, the turning operation of the arm 9 needs to be increased, and the sound of the braking release operation of the braking device increases due to the turning operation of the large arm 9. In addition,
The longer the arcuate surface of the braking piece 14 facing the rotating cylindrical surface of the braking drum 5, the louder the braking operation sound.

The present invention has been made to solve such a problem, and can easily cope with different types of equipment.
It is another object of the present invention to provide an elevator braking device in which the installation space at the installation location is less restricted.

[0011]

In an elevator braking apparatus according to the present invention, a mounting frame provided on a fixed portion and opposed to a rotating cylindrical surface of a rotating body pivoted on the fixed portion is provided. One end is pivotally attached to one end of the mounting frame on the side closer to the rotating body, the length is arranged tangentially to the rotating cylindrical surface of the rotating body, and the other end is arranged on the other side of the mounting frame. Body, a braking piece, one side of which is pivotally connected to the longitudinal middle of the arm via an axis arranged parallel to the rotation axis of the rotating body, and the other side is arranged opposite to the rotating cylindrical surface of the rotating body, An electromagnetic coil attached to the mounting frame and arranged on the opposite arm side, a suction element sucked by this electromagnetic coil is provided, and one end is connected to the arm body at a position facing the pivoting position of the braking piece, An actuation shaft inserted with a gap in the electromagnetic coil, one side attached to the mounting frame and the other side attached to the rotating end of the arm It is binding and the pressing means are provided for urging the arm member to rotate the cylindrical surface direction of the rotating body.

Further, in the elevator braking device according to the present invention, the plurality of braking devices each including an arm, a braking piece, an electromagnetic coil, an operating shaft, and a mounting frame provided with a pressing means are provided on the rotating cylindrical surface of the rotating body. Are provided at equal intervals.

In the brake device for an elevator according to the present invention, the center portion is provided at each of the rotating ends at both ends of the braking piece pivotally attached to the arm body, and one end is connected to the braking piece. The end is a support bolt inserted with an air gap formed between the arm and the mounting frame, one side is inserted into the insertion end of the support bolt, and the other side is locked by the mounting frame, and the rotating end of the braking piece is mounted on the mounting frame. And a support spring biasing in the direction.

In the elevator braking apparatus according to the present invention, one side is engaged with the insertion end of the operating shaft, and the other side is engaged with the mounting frame, and the biasing body biases the operating shaft in the direction of the mounting frame. Is provided.

Further, in the brake device for an elevator according to the present invention, there is provided a suction element which can be attached to a required position in the longitudinal direction of the operation shaft via a screw provided on the operation shaft.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 1 to 4 show an embodiment of the present invention. FIG. 1 is a front view of an elevator hoist, FIG. 2 is a right side view of FIG. 1, and FIG. FIG. 4 is an enlarged view of a portion, and FIG. 4 is a diagram showing a non-braking state of the braking device of FIG. In the figure, 1 is a fixed portion of the hoisting machine, 2 is an electric motor provided on the fixed portion 1, 3 is an output shaft of the electric motor 2, 4 is a drive sheave fixed to the output shaft 3, and 5 is an output shaft 3. It is a rotating body composed of a fixed braking drum.

Reference numeral 15 denotes a mounting frame, which is provided on the fixed portion 1 and is provided so as to face the rotating cylindrical surface of the rotating body 5. Reference numeral 16 denotes an arm body, one end of which is pivotally connected via a pin 17 to one end of the mounting frame 15 on the side of the rotating body 5 via a pin 17 and whose length is arranged tangentially to the rotating cylindrical surface of the rotating body 5, and the other end thereof. It is arranged on the other side of the mounting frame 15. Numeral 18 denotes a braking piece, the center of one side in the up-down direction is pivotally connected to the longitudinal middle of the arm body 16 via a shaft 19 arranged parallel to the rotation axis of the rotating body 5, and the other side rotates the rotating body 5. It is arranged to face the cylindrical surface.

Reference numeral 20 denotes a support bolt, which is provided at each of the upper and lower ends of the braking piece 18, that is, at the rotating end, and has one end connected to the braking piece 18 and the other end forming a gap in the arm 16 and the mounting frame 15. It has been inserted. Reference numeral 21 denotes a nut screwed into the insertion end of the support bolt 20, and reference numeral 22 denotes a support spring formed of a compression coil spring fitted between the support bolt 20 and disposed between the mounting frame 15 and the nut 21.

Reference numeral 23 denotes the arm 16 mounted on the mounting frame 15.
The electromagnetic coil arranged on the side, 24 is the operating shaft, the braking piece 1
One end is connected to the arm 16 at a position opposite to the pivot position of
5 and is inserted into the mounting frame 15 and the electromagnetic coil 23 with a gap formed therebetween. Numeral 26 denotes a suction element, which forms a part of a magnetic circuit by an electromagnetic coil 23, and has an operating shaft 24.
Is screwed into a thin screw provided in the actuator, and is provided so as to be adjustable in the longitudinal direction of the operating shaft 24, is mounted at a required position by a nut, and is attracted to the electromagnetic coil 23. 27 is the operating shaft 24
A nut 28 screwed into the insertion end is a biasing body formed of a compression coil spring fitted to the operating shaft 24 and disposed between the mounting frame 15 and the nut 27.

Reference numeral 29 denotes a pressing means, which is an adjusting bolt 3 which is screwed into the mounting frame 15 and protrudes to face the rotating end of the arm 16.
0, a spring holder 3 provided at a protruding end of the adjustment bolt 30
1 and a braking spring 3 composed of a compression coil spring whose both ends are held by the pivotal end of the arm body 16 and a spring holder 31, respectively.
2 and presses the arm body 16 toward the rotating cylindrical surface of the rotating body 5. Reference numeral 33 denotes a braking device,
5, arm 16, braking piece 18, electromagnetic coil 23, suction element 2
6. The pressing means 29 is constituted as a main member, and is provided in the fixed portion 1 of the hoisting machine and provided at symmetrical positions on both sides of the rotating body 5 respectively.

In the elevator braking device constructed as described above, the arm body 16 is urged toward the mounting frame 15 via the operating shaft 24 by the urging body 28 so as not to move slightly due to the gap of the pin 25 or the like. Be equipped. The upper and lower ends of the braking piece 18 in FIG.
Accordingly, it is urged toward the mounting frame 15 via the support bolt 20. By the biasing by the support spring 22 and the adjustment by the nut 21, the surface of the braking piece 18 facing the rotating cylindrical surface of the rotating body 5 is arranged in a posture that forms a uniform gap with the rotating cylindrical surface. It is equipped so as not to move slightly due to the gap of the shaft 19 or the like.

When the elevator stops, the electromagnetic coil 23 is deenergized, and the braking piece 18 is pushed by the braking spring 32 of the pressing means 29 via the arm 16 against the urging force of the support spring 22 or the like. Is pressed against the rotating cylindrical surface. Thereby, the rotating body 5 is frictionally braked as shown in FIG.

When the elevator is started, the electromagnetic coil 23 is energized and the suction element 26 is sucked, whereby the arm 16 rotates toward the mounting frame 15 against the pressing force of the pressing means 29. As a result, the braking piece 18 is displaced to separate from the rotating cylindrical surface of the rotating body 5 as shown in FIG. 4, and the friction braking of the rotating body 5 is released.

In the braking device 33, members such as the mounting frame 15, the arm body 16, the braking piece 18, the electromagnetic coil 23, the suction element 26, and the pressing means 29 are independent of the fixed portion 1 of the hoist. And it is assembled integrally. For this reason, it can be diverted to hoists and the like having different shapes and types and can be easily shared. Therefore, by preparing the standard braking device 33, it can be shared by various types of hoists and the like, and the productivity can be improved.

The rotation of the arm 16 causes the arm 1 to rotate.
Since the braking piece 18 directly connected to the wheel 6 is displaced, the size of the braking device 33 can be reduced, and the gap between the braking piece 18 and the rotating cylindrical surface of the rotating body 5 can be easily and uniformly set when braking is not performed. . For this reason, the operation stroke of the suction element 26 can be shortened, and the turning operation of the arm 16 can be reduced. Therefore, the sound of the braking release operation of the braking device 33 is reduced, and the installation environment of the braking device 33 can be quiet.

A braking device 33 is provided on the fixed portion 1 of the hoisting machine, and is provided on both left and right sides of the rotating body 5 at symmetrical positions. For this reason, a space for installing the braking device 33 is not required outside the diameter of the rotating body 5 in the vertical direction of the rotating body 5, and the restriction on the space for installing the hoisting machine or the like is eliminated. Therefore, the degree of freedom regarding the installation location of the hoist increases, and the installation of the hoist can be facilitated.
In addition, it can easily handle different types of equipment such as a hoisting machine,
It is possible to obtain the braking device 33 that can be easily installed and has a low braking release operation sound.

A braking device 33 is provided on the fixed portion 1 of the hoist, and is provided at symmetrical positions on both left and right sides of the rotating body 5. As a result, the braking devices 33 are arranged at symmetrical positions with respect to the axis of the rotating body 5, and the pressing forces of the braking pieces 18 of the respective braking devices 33 on the rotating body 5 are balanced. Therefore, a smooth braking action can be obtained without applying any extra load to the axis of the rotating body 5. In addition, even when the plurality of braking devices 33 are provided at equal intervals along the rotating cylindrical surface of the rotating body 5, the function of equalizing the pressing force of the braking piece 18 on the rotating body 5 can be obtained.

The center of the braking piece 18 along the circumferential direction of the rotating body 5 rotating cylindrical surface of the braking piece 18 is pivotally attached to the arm 16 and the braking piece 1
A support bolt 20 is provided at each of the rotating ends of both ends of the arm 8, one end is connected to the braking piece 18, and the other end is inserted into the arm 16 and the mounting frame 15 with a gap. A support spring 22 is provided, one side of which is inserted into the support bolt 20 and the other side of which is locked by the mounting frame 15 to urge the rotating end of the braking piece 18 toward the mounting frame 15.

For this reason, the braking piece 18 is smoothly disengaged from the rotating cylindrical surface without temporarily hitting the rotating cylindrical surface of the rotating body 5 during non-braking. Further, since the braking piece 18 is constantly pressed against the arm body 16, the fine movement phenomenon at the connecting portion between the braking piece 18 and the arm body 16 is suppressed, and the operation noise generated by the fine movement can be prevented.

Further, since one side is engaged with the insertion end of the operating shaft 24 and the other side is respectively engaged with the mounting frame 15, there is provided an urging body 28 for urging the operating shaft 24 toward the mounting frame 15.
The reciprocating operation of the operating shaft 24 in the electromagnetic coil 23 can be smoothed. Further, the operation shaft 24 is biased in the direction of the mounting frame 15, thereby suppressing a fine movement phenomenon at the brake piece 18 and the arm body 16 and at a connecting portion between the arm body 16 and the operation shaft 24, thereby reducing an operation sound generated by the fine movement. Can be prevented.

Further, the suction element can be mounted at a required position in the longitudinal direction of the operating shaft 24 via a thin screw provided on the operating shaft 24. Therefore, the position of the attraction element 26 facing the electromagnetic coil 23 can be easily set at an appropriate position, the magnetic gap can be shortened, and the utilization of magnetic force can be made more efficient. Further, the suction element 26 is
The stroke of the operating shaft 24 until it comes into contact with can be easily adjusted, and the braking operation can be facilitated. further,
By shortening the stroke of the operating shaft 24, it is possible to prevent the generation of operating noise between the suction element 26 and the electromagnetic coil 23.

In the embodiment of FIGS. 1 to 4,
The description has been given assuming that the rotating body 5 is constituted by the braking drum fixed to the output shaft 3 of the electric motor 2 constituting the hoisting machine. However, for example, in a case where the braking device 33 is provided on a deflecting vehicle mounted on an elevator, and a rotating body including a braking drum formed on the deflecting vehicle is frictionally braked by the braking piece 18, even if the braking device 33 is configured as shown in FIG. 4 to 4 can be obtained.

Embodiment 2 FIG. 5 and 6 are views showing an example of another embodiment of the present invention. FIG. 5 is a front view of a hoisting machine for an elevator, in which a fixing portion on one side, which will be described later, is omitted, and FIG. 5 is a plan view of FIG. In the drawings, the same reference numerals as those in FIGS. 1 to 4 denote the corresponding parts, 1 is a fixing portion comprising bearing plates on both sides of a hoist constituted by an outer rotor type electric motor 2, and 34 is a fixing of the electric motor 2 The shaft 4, 4 is a drive sheave formed on the outer rotor of the electric motor 2, and 5 is a rotating body composed of a braking drum formed on the outer rotor of the electric motor 2.

In the braking device for an elevator constructed as described above, the mounting frame 15, the arm body 16, the braking piece 18, the electromagnetic coil 2 and the like are the same as in the embodiment shown in FIGS.
3. The braking device 33 is configured with the suction element 26 and the pressing means 29 as main members. When the elevator stops, the electromagnetic coil 23 is deenergized, and the brake piece 32 is pressed by the brake spring 32 of the pressing means 29 to frictionally brake the rotating body 5.

When the elevator is started, the electromagnetic coil 23 is energized and the operation of the suction element 26 causes the brake piece 1 to move.
8 is separated from the rotating cylindrical surface of the rotating body 5, and the friction braking of the rotating body 5 is released. Then, the mounting frame 15, the arm body 16, the braking piece 18, the electromagnetic coil 23, the suction element 26, the pressing means 29
The braking device 33 is assembled independently and integrally with the fixed portion 1 of the hoist by means of such members. Therefore, although detailed description is omitted, the same operation as the embodiment of FIGS. 1 to 4 can be obtained in the embodiment of FIGS.

In the embodiment shown in FIGS. 5 and 6, a braking device 33 is provided on the fixed portion 1 of the hoist and is provided at a vertically symmetric position of the rotating body 5 respectively.
For this reason, no space for installing the braking device 33 is required outside the diameter of the rotating body 5 in the left-right direction of the rotating body 5, and the restriction on the space for installing the hoist and the like is eliminated.
Therefore, the degree of freedom regarding the installation location of the hoist increases,
Installation of the hoist can be facilitated.

[0037]

As described above, the present invention provides a mounting frame provided on a fixed portion and opposed to a rotating cylindrical surface of a rotating body pivotally supported by the fixed portion, and a rotation of the mounting frame. One end is pivotally attached to one end near the body, the length is arranged tangentially to the rotating cylindrical surface of the rotating body, and the other end is an arm body arranged on the other side of the mounting frame, One side is pivotally attached to the longitudinal middle of the arm via a shaft arranged in parallel with the rotation axis, and the other side is mounted on a mounting frame, with a braking piece arranged opposite the rotating cylindrical surface of the rotating body. An electromagnetic coil arranged on the opposite side of the arm and a suction element to be attracted to the electromagnetic coil are provided, and one end is connected to the arm at a position facing the pivoting position of the braking piece to form a gap in the electromagnetic coil The arm is connected to the rotating shaft of the rotating body, with the operating shaft inserted and the one side connected to the mounting frame and the other side connected to the rotating end of the arm. It is provided with a a pressing means for urging direction.

Thus, the members such as the mounting frame, the arm, the braking piece, the electromagnetic coil, the suction element, and the pressing means are assembled independently and integrally with the fixed portion of the hoisting machine, and the braking device is provided. Be composed. For this reason, it can be easily shared by hoists having different shapes and types, and by preparing a standard braking device, it can be shared by various types of hoists and the like, which has the effect of improving productivity.

Further, a braking device is provided at a fixed portion of the hoist and is disposed at a symmetric position with respect to the rotating body. This eliminates the need for a space for installing the braking device outside the outer periphery of the rotating body where the braking device for the rotating body is not disposed, and eliminates the restriction on the space for installing the hoisting machine or the like. Therefore, the degree of freedom regarding the installation location of the hoist increases, and there is an effect that the installation of the hoist is facilitated.

As described above, according to the present invention, a plurality of braking devices including an arm, a braking piece, an electromagnetic coil, an operating shaft, and a mounting frame provided with pressing means are provided along the rotating cylindrical surface of the rotating body. They are provided at equal intervals.

Thus, the braking devices are arranged at symmetric positions with respect to the axis of the rotating body, and the pressing force of the rotating body by the braking pieces of each braking device is balanced. Therefore,
This has the effect of smoothing the braking action without any extra load such as an unbalanced load acting on the axis of the rotating body.

Further, as described above, the present invention has a central portion provided at each of the rotating ends at both ends of the braking piece pivotally attached to the arm body, one end of which is connected to the braking piece, and the other end of which is provided at the other end. A support bolt inserted into the arm and the mounting frame to form a gap,
One side is provided with a support bolt insertion end, and the other side is provided with a support spring which is locked to the mounting frame and biases the rotating end of the braking piece toward the mounting frame.

As a result, the braking piece is supported by the support bolt, and the braking piece is smoothly disengaged from the rotating cylindrical surface without temporarily hitting the rotating cylindrical surface of the rotating body during non-braking. Further, since the braking piece is constantly pressed against the arm, the fine movement phenomenon at the connecting portion between the braking piece and the arm is suppressed, and there is an effect of preventing the operation noise generated by the fine movement.

Further, as described above, the present invention is provided with an urging member which is engaged on one side with the insertion end of the operating shaft and locked on the other side with the mounting frame, and urges the operating shaft toward the mounting frame. Things.

Thus, since the operating shaft is mounted on the mounting frame via the urging member and is urged in the direction of the mounting frame, the reciprocating operation in the electromagnetic coil can be facilitated. Further, since the operating shaft is urged in the direction of the mounting frame, a fine movement phenomenon at a connecting portion between the arm body and the operating shaft is suppressed, and an operation sound generated by the fine movement is prevented.

Further, as described above, the present invention is provided with a suction element which can be mounted at a required position in the longitudinal direction of the operating shaft via a screw provided on the operating shaft.

As a result, the position of the attraction element facing the electromagnetic coil can be easily set at an appropriate position, the magnetic gap can be shortened, and the use of magnetic force can be made more efficient. In addition, the stroke of the operating shaft until the suction element comes into contact with the electromagnetic coil can be easily adjusted, which has the effect of smoothing the braking operation. Further, by shortening the stroke of the operating shaft, there is an effect of preventing generation of operating noise between the suction element and the electromagnetic coil.

[Brief description of the drawings]

FIG. 1 shows the first embodiment of the present invention, and is a front view of an elevator hoist.

FIG. 2 is a right side view of FIG.

FIG. 3 is an enlarged view of a main part of FIG. 2;

FIG. 4 is a diagram showing a non-braking state of the braking device of FIG. 3;

FIG. 5 is a view showing Embodiment 2 of the present invention, and is a front view showing an elevator hoist constituted by an outer rotor type electric motor, with one side of a fixing portion omitted.

FIG. 6 is a plan view of FIG. 5;

FIG. 7 is a diagram showing a conventional elevator braking device;
The front view of an elevator hoist.

8 is a right side view of FIG. 7 showing the braking device of the hoist of FIG. 7;

FIG. 9 is a diagram showing a non-braking state of the braking device of FIG. 8;

[Explanation of symbols]

1 fixed part, 5 rotating bodies, 15 mounting frames, 16 arms,
18 Brake pieces, 19 axes, 20 support bolts, 22 support springs, 23 electromagnetic coils, 24 operating shafts, 26 suction elements, 28 biasing bodies, 29 pressing means, 33 braking devices.

Claims (5)

[Claims] 1. A mounting frame provided on a fixed portion and opposed to a rotating cylindrical surface of a rotating body pivotally supported by the fixed portion, and an end of the mounting frame on one side closer to the rotating body. One end is pivotally mounted and its length is arranged tangentially to the rotating cylindrical surface, and the other end is arranged in parallel with the rotation axis of the rotating body and the arm body arranged on the other side of the mounting frame. One side is pivotally attached to the longitudinal middle of the arm body via a shaft, and the other side is a braking piece disposed opposite to the rotating cylindrical surface, and is mounted on the mounting frame and disposed on the opposite side of the arm body. An electromagnetic coil and a suction element to be attracted to the electromagnetic coil are provided, and one end is connected to the arm at a position facing the pivotally attached position of the braking piece,
An actuation shaft inserted with a gap formed in the electromagnetic coil,
A brake device for an elevator, comprising pressing means connected on one side to the mounting frame and the other side to a rotating end of the arm body to urge the arm body toward the rotating cylindrical surface. 2. A plurality of braking devices each comprising an arm, a braking piece, an electromagnetic coil, an operating shaft, and a mounting frame provided with a pressing means are provided at regular intervals along a rotating cylindrical surface of a rotating body. The brake device for an elevator according to claim 1, wherein: 3. A braking member pivotally attached to the arm body having a central portion provided at each of the rotating ends of both ends thereof, one end of which is connected to the braking member, and the other end of which has a gap between the arm body and the mounting frame. The support bolt formed and inserted, one side is locked by the insertion end of the support bolt, and the other side is locked by the mounting frame, and urges the rotating end of the braking piece in the direction of the mounting frame. The elevator braking device according to claim 1, further comprising a support spring. 4. The apparatus according to claim 1, further comprising an urging body, one side of which is engaged with the insertion end of the operating shaft, and the other side of which is engaged with the mounting frame to urge the operating shaft toward the mounting frame. 2. The elevator braking device according to claim 1. 5. The elevator braking device according to claim 1, wherein the suction element is mounted at a required position in a longitudinal direction of the operation shaft via a screw provided on the operation shaft.