JP2008024480A - Emergency braking device of passenger conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an emergency braking device of a passenger conveyor capable of improving installation performance to the inside of a main frame by a simple constitution. <P>SOLUTION: This emergency braking device of the passenger conveyor has a fixing part 20 fixed to the main frame 1 of the passenger conveyor, a rotary shaft 21 rotatably arranged in the fixing part 20, a detecting part 22 arranged at the rotary shaft 21 so as to project in the predetermined direction from the rotary shaft 21 and detecting the rupture of a driving chain 8 for transmitting the driving force of a driving machine 4 of the passenger conveyor to a main shaft 6, and a braking part 23 arranged at the rotary shaft 21 arranged so as to project in the predetermined direction from the rotary shaft 21 and braking the rotational movement of the main shaft 6 when detecting the rupture of the driving chain 8 by the detecting part 22, and is constituted so that a part of the detecting part 22 can be freely attached and detached to and from the rotary shaft 21, and is constituted so that an angle with respect to the braking part 23 of the detecting part 22 can be adjusted in a predetermined range. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an emergency braking device for a man conveyor that detects breakage of a drive chain and prevents rotation of a main shaft.

  Generally, in the man conveyor, a driving force of a driving machine provided in a machine room is transmitted to a main shaft by a driving chain, and a step moves (lifts) between both entrances and exits by the rotation of the main shaft. In addition, the brake device for stopping the movement of the step is normally directly connected to the output shaft of the drive machine. When the man conveyor is stopped or when a power failure occurs, the brake device is operated to operate the output shaft of the drive machine. By stopping the rotation of the main shaft, the rotation of the main shaft is stopped via the drive chain.

  On the other hand, in an escalator having an inclined portion between both entrances and exits in a man conveyor, when a passenger is on the step, a rotational force is always applied in a direction in which the step descends with respect to the main shaft. Therefore, in the escalator, when the step is stopped when the operation is stopped, the brake device is always operated to prevent the step from descending.

  However, if the drive chain is broken by the escalator as described above, even if the brake device is operated, the braking force is not transmitted to the main shaft, and the lowering of the step cannot be stopped. For this reason, if a passenger is on the step when the drive chain is broken, the step starts to descend due to the weight of the passenger and gradually accelerates.If there is no safety device, a very dangerous situation occurs. obtain. Therefore, the man conveyor is provided with a so-called emergency braking device that prevents the lowering of the step by stopping the rotation of the main shaft when the breakage of the drive chain is detected.

  As a prior art of an emergency braking device having the above function, when a breakage of the drive chain is detected, a ratchet pawl that engages with the main shaft is engaged to stop the rotation of the main shaft. (For example, refer to Patent Document 1).

Japanese Utility Model Publication No. 63-16698

  In recent years, it has been required to reduce the space occupied by the man conveyor in the building, that is, to reduce the space of the man conveyor. For example, the opening size on the building side for storing the man conveyor (longitudinal horizontal distance of the man conveyor) There are many demands for shortening. For such a request, it is necessary to shorten the main frame of the man conveyor.

  More recently, the space occupied by the man conveyor in buildings has been reduced by narrowing the width of the main frame (short horizontal distance of the man conveyor) to meet the needs of the market. Man conveyors called space-saving types or narrow types are becoming mainstream. In the man conveyor called the space-saving type or the narrow type in which space saving is achieved as described above, the internal space of the machine room in which the drive machine, the main shaft, and the like are arranged is also narrowed.

  On the other hand, the emergency braking device for the man conveyor described in Patent Document 1 is provided with a long object such as a lever for detecting breakage of the drive chain and a ratchet pole that engages with the ratchet wheel when the drive chain is broken. . Further, when the installation positions of the drive chain and the ratchet wheel are separated from each other, the length of the shaft for interlocking the lever and the ratchet pole is also increased. For this reason, when the emergency braking device is installed in the machine room (in the main frame), there is a problem that the drive unit and other members in the main frame easily interfere with each other and the assemblability is poor. In addition, when the emergency braking device is attached to a man conveyor called the above-described narrow type or the like, and a steel plate is provided on the side surface of the main frame, a part of the emergency braking device cannot be protruded outside the main frame. In some cases, there was a problem that the assemblability deteriorated further.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an emergency braking device for a man conveyor that can improve the assembling property inside the main frame with a simple configuration. That is.

  An emergency braking device for a man conveyor according to the present invention includes a fixed portion fixed to a main frame of the man conveyor, a rotating shaft rotatably provided on the fixing portion, a rotating shaft, and a rotating shaft. And a detection unit that detects breakage of the drive chain that transmits the driving force of the drive device of the man conveyor to the main shaft, and is provided on the rotation shaft, and is provided with a predetermined value from the rotation shaft. A braking unit for a man conveyor comprising: a braking unit disposed so as to protrude in a direction, and braking the rotation of the main shaft when the detection unit detects breakage of the drive chain. A part thereof is configured to be detachable with respect to the rotation shaft, and an angle with respect to the braking portion can be adjusted within a predetermined range.

  According to the present invention, it is possible to improve the assembling property of the emergency brake device of the man conveyor inside the main frame with a simple configuration.

  In order to explain the present invention in more detail, it will be described with reference to the accompanying drawings. In addition, in each figure, the same code | symbol is attached | subjected to the part which is the same or it corresponds, The duplication description is simplified or abbreviate | omitted suitably.

Embodiment 1 FIG.
FIG. 1 is a side view showing the overall configuration of the man conveyor. In FIG. 1, 1 is a main frame that spans between adjacent upper and lower floors and supports the weight and load of the man conveyor. 2, the upper surface forms the floor surface of the upper entrance, and the upper end of the main frame 1. A floor plate that covers the upper part of the upper machine room 3 consisting of a space formed in the part, 4 is a drive machine provided in the upper machine room 3, 5 is a drive chain gear provided on the output shaft of the drive machine 4, and 6 is The main shaft 7 is provided in the upper machine chamber 3 so as to be rotatable, and the axial direction is arranged in the opening direction of the main frame 1. The main shaft drive chain gear 8 that rotates is wound around the drive chain gear 5 and the main shaft drive chain gear 7, and the drive chain that transmits the driving force of the drive machine 4 to the main shaft 6 through the main shaft drive chain gear 7. It is.

  9 is disposed in the upper machine chamber 3, and is provided on the main shaft 6, whereby the upper step chain gear 10 that rotates in conjunction with the main shaft 6 (and the main shaft drive chain gear 7) is disposed in the lower machine chamber 11. The lower step chain gear 12, which is rotatably provided with respect to the main frame 1, is wound around the upper step chain gear 9 and the lower step chain gear 10, and is endlessly driven by the driving force of the drive unit 4. The step chain 13 is provided on each step shaft (not shown) attached to the step chain 12 at regular intervals, and is a step that circulates between the upper and lower entrances and exits as the step chain 12 moves.

  14 is a balustrade erected on both sides of the main frame 1, 15 is an endless moving handrail that is supported by the balustrade 14 and circulates between both upper and lower entrances and exits, and 16 is a moving handrail 15 that is driven by the driving force of the drive unit 4 A moving handrail drive device 17 for driving is a control panel provided in the upper machine room 3 and governing the overall control of the man conveyor. In addition, L in FIG. 1 has shown the opening dimension (longitudinal horizontal distance of a man conveyor) of a building required in order to store a man conveyor.

  2 is a plan view showing an emergency braking device for a man conveyor according to Embodiment 1 of the present invention, and FIG. 3 is a front view showing the emergency braking device for a man conveyor according to Embodiment 1 of the present invention. FIG. 3 shows a view taken in the direction of arrow A in FIG. 1, and FIG. 4 is a CC arrow view of the emergency braking device for the man conveyor shown in FIG.

  2 to 4, reference numeral 18 denotes a ratchet wheel which is disposed in the upper machine chamber 3 and is rotated on the main shaft 6 by being provided on the main shaft 6. The ratchet wheel 18 and the main shaft drive chain gear 7 around which a part of the drive chain 8 is wound are, for example, provided at both ends of the main shaft 6 so as to sandwich the step 13 therebetween. A ratchet wheel 18 is arranged on one side of the machine room 3 in the frontage direction and on the other side of the upper machine room 3 in the frontage direction, in proximity to the main frames 1 on both sides. The ratchet wheel 18 constitutes a part of an emergency braking device, and the main shaft 6 is restrained by braking the rotation of the ratchet wheel 18.

  Reference numeral 19 denotes a braking means which is disposed in the upper machine chamber 3 and brakes the rotation of the ratchet wheel 18 by detecting the breakage of the drive chain 8 to stop the main shaft 6. The braking means 19 is provided at a fixed portion 20 fixed to the main frame 1, a rotary shaft 21 provided rotatably on the fixed portion 20, and one end portion of the rotary shaft 21. A detection unit 22 that detects breakage and a ratchet that is provided at the other end portion of the rotating shaft 21, and when the breakage of the drive chain 8 is detected by the detection unit 22, a part thereof is engaged with the ratchet wheel 18. A braking portion 23 that brakes the rotation of the wheel 18, that is, the rotation of the main shaft 6, is provided.

  The fixing portion 20 of the braking means 19 includes, for example, a support member 24 having a predetermined length having a substantially L-shaped cross section, and a plurality of support members 24 provided on the support member 24 and rotatably supporting the rotating shaft 21. The bearing plate 25 is comprised. The main frame 1 has one end portion of the support member 24 arranged on one side in the front direction of the upper machine chamber 3 and the other end portion of the support member 24 arranged on the other side in the front direction of the upper machine chamber 3. 1, the support member 24 is arranged so as to extend in the opening direction of the upper machine chamber 3 by being fastened and fixed to each via a bolt 26.

  The rotating shaft 21 is fixed at the predetermined position of the main frame 1 so that the axial direction of the rotating shaft 21 is arranged substantially parallel to the axial direction of the main shaft 6, and one end portion of the rotating shaft 21 is a main shaft drive chain. The other end is disposed above the ratchet wheel 18 above the gear 7 (drive chain 8). That is, the rotation shaft 21 has a predetermined length slightly longer than the distance between the main shaft drive chain gear 7 and the ratchet wheel 18.

  The detecting portion 22 of the braking means 19 is disposed so as to protrude from one end portion of the rotating shaft 21 in a predetermined direction orthogonal to the axial direction of the rotating shaft 21, and the tip portion thereof is the endless drive chain 8. It is mounted from above on the upper end part. When the drive chain 8 is broken, the tip portion is dropped, and the rotation shaft 21 is rotated in a predetermined direction by a predetermined angle or more. The detection unit 22 includes, for example, a lever support unit 27 provided integrally with the rotation shaft 21 at one end of the rotation shaft 21 so as to slightly protrude from the rotation shaft 21 in a predetermined direction, and a lever. From one end portion detachably provided on the support portion 27 (the rotation shaft 21), it extends in a predetermined direction orthogonal to the axial direction of the rotation shaft 21, and the angle with respect to the lever support portion 27 is within a predetermined range. An adjustable lever 28 and a shoe 29 provided at the other end (tip) of the lever 28 and placed on the upper end of the drive chain 8 from above are configured.

  Here, the lever support portion 27 is formed with a plurality of screw holes 27a in an arc shape (on the arc line) centered on the central axis of the rotation shaft 21 at a part of the lever support portion 27 that is separated from the rotation shaft 21 by a predetermined distance. ing. Further, the lever 28 is opened to one side at one end thereof, and a recess 30 in which the rotation shaft 21 is disposed at a predetermined position inside the opening, and a predetermined distance from the recess 30 to the other end side. And a lever mounting hole (not shown) formed at a distant position. The lever 28 is tightened to one of the screw holes 27a of the lever support portion 27 with the bolt 31 inserted through the lever mounting hole in a state where the rotation shaft 21 is disposed at a predetermined position of the recess 30. It is fixed so as to extend in a predetermined direction orthogonal to the axial direction of the rotating shaft 21.

  The plurality of screw holes 27 a are formed on an arc line centering on the central axis of the rotation shaft 21 disposed at a predetermined position inside the recess 30, so that the lever 28 (detection unit 22) is a bolt 31. By changing the position of the screw hole 27a for tightening, the angle with respect to the brake unit 23 (relative angle with the brake unit 23), which will be described in detail later, can be adjusted within a predetermined range. Further, the recess 30 is formed such that the opening direction (center line X of the opening 30 in FIG. 4) has a predetermined angle (for example, 30 degrees) with a straight line Y described later. Here, the straight line Y is a straight line orthogonal to the center line of the rotation shaft 21 when the rotation shaft 21 is arranged at a predetermined position inside the recess 30, and the center line of the rotation shaft 21 and the lever attachment It is also a straight line that is orthogonal to the straight line Z that is orthogonal to the center line of the hole. That is, the opening direction of the recess 30 is formed so that the lever 28 does not rotate around the bolt 31 (lever mounting hole) in a state where the rotation shaft 21 is disposed at the predetermined position in the recess 30. . Therefore, even if the bolt 31 is loosened from the state shown in FIG. 4, the lever 28 does not rotate around the center line of the lever mounting hole, and the lever 28 falls off the rotating shaft 21. There is no such thing.

  The lever mounting holes and screw holes 27a may be arranged in the opposite manner. That is, the screw hole 27a may be formed in the lever 28, and the lever mounting hole corresponding to the screw hole 27a may be formed in the lever support portion 27. A plurality of lever mounting holes may be formed in a predetermined arc shape.

  Further, the braking portion 23 of the braking means 19 is orthogonal to the axial direction of the rotating shaft 21 from the other end of the rotating shaft 21 so as to have a predetermined relative angle with the longitudinal direction of the lever 28 of the detecting portion 22. Projecting in a predetermined direction, and the tip portion thereof is shaped to engage with the ratchet wheel 18. The brake unit 23 is disposed above the ratchet wheel 18 at a predetermined interval with the shoe 29 of the detection unit 22 placed on the upper end of the drive chain 8 from above. . That is, when the drive chain 8 is operating normally (when it is not broken), the tip of the braking portion 23 does not engage with the ratchet wheel 18 and the main shaft 6 remains rotatable. is doing.

  On the other hand, when the drive chain 8 is broken, the shoe 29 placed on the upper end of the drive chain 8 falls, and the rotation shaft 21 rotates in a predetermined direction. Then, the braking portion 23 rotates in conjunction with the rotation shaft 21, and its tip end portion engages with the ratchet wheel 18 to stop the rotation of the main shaft 6. That is, the detection unit 22 and the braking unit 23 of the braking means 19 do not hinder the rotation of the ratchet wheel 18 when normal, and the braking unit 23 engages with the ratchet wheel 18 when the drive chain 8 is broken, thereby causing the main shaft 6 to move. The arrangement, the angle, and the like are adjusted so as to stop.

  Next, the operation when the braking means 19 having the above configuration is attached to the main frame 1 will be described. FIG. 5 is a diagram showing an assembled state of the emergency brake device for the man conveyor according to the first embodiment of the present invention. When attaching the braking means 19 to the main frame 1, the lever 28 of the detection unit 22 is removed from the rotating shaft 21 in advance. Then, the braking means 19 is fixed to a predetermined position of the main frame 1 with a bolt 26 in a state where only the lever support portion 27 of the detection unit 22 is fixed to the rotating shaft 21. At this time, since the support member 24 of the fixed portion 20 has a predetermined length, if necessary, the brake means 19 is inserted into the main frame 1 while being inclined with respect to the installation direction as shown in FIG. To do. Then, after the braking means 19 is rotated in the main frame 1 so as to face the installation direction, the braking means 19 is fixed to a predetermined position of the main frame 1 by the bolt 26.

  Next, inside the main frame 1, the lever 28 is fixed to the rotation shaft 21 (lever mounting portion 27). Specifically, the rotation shaft 21 is disposed at a predetermined position in the recess 30 of the lever 28 so that one end of the lever 28 is hooked on the rotation shaft 21, and the lever 28 is supported by the rotation shaft 21. Then, while confirming the positions of the shoe 29 and the braking portion 23, the lever 28 is fixed to the lever support portion 27 by the bolt 31, and the shoe 29 is placed on the upper end portion of the drive chain 8 from above.

  According to Embodiment 1 of the present invention, the lever 28 of the detection unit 22 is configured to be detachable from the rotation shaft 21. Therefore, since the brake means 19 can be assembled to the main frame 1 with the lever 28, which is a long object at one end of the rotating shaft 21, removed, the internal means of the brake means 19 and the main frame 1 at the time of assembly. And the assembling property of the braking means 19 inside the main frame 1 can be greatly improved. In addition, since the detection part 22 and the braking part 23 are fixed to the rotating shaft 21 so as to have a predetermined angle when viewed from the side, the assemblability is greatly improved by simply removing the lever 28 which is one long object. it can.

  Further, as in the first embodiment, when the detection unit 22 and the braking unit 23 are arranged close to the main frames 1 on both sides, or when the braking means 19 is attached to a man conveyor called a narrow type or the like In the case where a steel plate is attached to the side surface of the main frame 1 and a part of the braking device 19 cannot be protruded outside the main frame 1, this is a particularly effective means.

  In addition, a recess 30 is formed at one end of the lever 28, and the bolt 31 can be fastened with the end of the lever 28 hooked on the rotating shaft 21, so that the lever 28 can be attached and removed. This simplifies the operation inside the main frame 1.

  Further, since the angle of the detection unit 22 with respect to the braking unit 23 can be adjusted within a predetermined range, the braking unit 23 and the ratchet wheel 18 can be adjusted even when the braking means 19 is installed or when the drive chain 8 is extended. Can be easily adjusted.

Embodiment 2. FIG.
FIG. 6 is a front view showing an emergency braking device for a man conveyor in the second embodiment of the present invention, and shows a view corresponding to FIG. 3 in the second embodiment. FIG. 7 is a DD arrow view of the emergency brake device for the man conveyor shown in FIG. 6 and 7, the detecting unit 22 of the braking means 19 is provided integrally with the rotating shaft 21 at one end of the rotating shaft 21 so as to slightly protrude from the rotating shaft 21 in a predetermined direction. A lever support portion 27 in which a plurality of screw holes 27a are formed in a circular arc shape (on the circular arc line) centered on the central axis of the rotation shaft 21 at a part away from the rotation shaft 21 by a predetermined distance, and one end portion For angle adjustment, which is rotatably provided on the rotation shaft 21 and is partly fastened and fixed to the lever support portion 27 by a bolt 31 so that the angle relative to the lever support portion 27 can be adjusted within a predetermined range. The support portion 32 and one end portion are detachably provided at the other end portion of the angle adjustment support portion 32, and are extended from the angle adjustment support portion 32 in a predetermined direction orthogonal to the axial direction of the rotation shaft 21. The lever 33 and the other end (tip) of the lever 33 Composed of a shoe 29 for being placed from above on the upper end portion of the over emissions 8.

  Here, since the plurality of screw holes 27a are formed on the arc line centering on the central axis of the rotation shaft 21 in the lever support portion 27, the position of the screw hole 27a for tightening the bolt 31 is changed. The angle of the lever 33 (detection unit 22) with respect to the braking unit 23 can be adjusted within a predetermined range. The angle adjustment support portion 32 is formed with one angle adjustment hole (not shown) corresponding to the screw hole 27a, which is inserted when the bolt 31 is screwed into the screw hole 27a. . The lever 33 is fastened and fixed to the other end portion of the angle adjustment support portion 32 by a plurality of bolts 34, for example.

  The angle adjusting hole and the screw hole 27a may be arranged in the opposite manner. That is, the screw hole 27a may be formed in the angle adjustment support portion 32, and the angle adjustment hole corresponding to the screw hole 27a may be formed in the lever support portion 27. A plurality of angle adjusting holes may be formed in a predetermined arc shape.

  When the braking means 19 having the above configuration is assembled to the main frame 1, the lever 33 is removed from the angle adjustment support portion 32 (rotating shaft 21) in advance. Then, with only the lever support portion 27 and the angle adjustment support portion 32 of the detection portion 22 being fixed to the rotating shaft 21, the braking means 19 is fixed to a predetermined position of the main frame 1 with a bolt 26. After the braking means 19 having the above-described configuration is fixed to the main frame 1, one end of the lever 33 is connected to the other end of the angle adjustment support portion 32 while checking the positions of the shoe 29 and the braking portion 23 inside the main frame 1. Then, the bolts 34 are fastened and fixed, and the shoe 29 is placed on the upper end of the drive chain 8 from above.

  Also with this configuration, it is possible to achieve the same effects as in the first embodiment. According to the second embodiment, even when the bolt 31 is removed to adjust the relative angle between the detection unit 22 and the braking unit 23, the lever 33 and the like are not detached from the rotation shaft 21, and the lever 33 Can be prevented from dropping into the main frame 1. Others have the same configuration and effects as the first embodiment.

Embodiment 3 FIG.
FIG. 8 is a front view showing an emergency braking device for a man conveyor in the third embodiment of the present invention, and shows a view corresponding to FIG. 3 in the third embodiment. FIG. 9 is an EE arrow view of the emergency braking device for the man conveyor shown in FIG. 8 and 9, the detection unit 22 of the braking means 19 is provided integrally with the rotation shaft 21 at one end of the rotation shaft 21 so as to slightly protrude from the rotation shaft 21 in a predetermined direction. A first screw hole (not shown) formed in an intermediate portion of the rotary shaft 21 that is a predetermined distance away from the rotation shaft 21, and a center of the first screw hole at an end portion that is a predetermined distance away from the first screw hole. A lever support portion 36 having a plurality of second screw holes 35 formed in an arc shape (on the arc line) centered on the shaft, and one end portion detachably provided on the lever support portion 36 (rotating shaft 21) To a lever 37 that extends in a predetermined direction orthogonal to the axial direction of the rotating shaft 21 and can be adjusted within a predetermined range with respect to the lever support portion 36, and the other end (tip portion) of the lever 37 And a shoe 29 mounted on the upper end of the drive chain 8 from above. That.

  The plurality of second screw holes 35 formed in the lever support portion 36 are formed so that the one arranged at the center is arranged substantially in a straight line with the rotation shaft 21 and the first screw hole. Yes. The lever 37 is fastened and fixed to the lever support portion 36 by a bolt 38 a fastened and fixed to the first screw hole and a bolt 38 b fastened and fixed to the second screw hole 35. The rest of the configuration is the same as that of the first embodiment.

  Also with this configuration, it is possible to achieve the same effects as in the first embodiment. In addition, according to Embodiment 3, the structure of the detection part 22 is simplified and can be comprised cheaply.

It is a side view which shows the whole structure of a man conveyor. It is a top view which shows the emergency braking device of the man conveyor in Embodiment 1 of this invention. It is a front view which shows the emergency braking device of the man conveyor in Embodiment 1 of this invention. It is CC arrow directional view of the emergency braking device of the man conveyor shown in FIG. It is a figure which shows the assembly state of the emergency braking device of the man conveyor in Embodiment 1 of this invention. It is a front view which shows the emergency braking device of the man conveyor in Embodiment 2 of this invention. FIG. 7 is a DD arrow view of the emergency brake device for the man conveyor shown in FIG. 6. It is a front view which shows the emergency braking device of the man conveyor in Embodiment 3 of this invention. It is the EE arrow line view of the emergency brake device of the man conveyor shown in FIG.

Explanation of symbols

1 main frame, 2 floor board, 3 upper machine room, 4 drive machine, 5 drive chain gear,
6 spindle, 7 spindle drive chain gear, 8 drive chain, 9 upper step chain gear,
10 Lower step chain gear, 11 Lower machine room, 12 Step chain,
13 steps, 14 railings, 15 moving handrails, 16 moving handrail drive devices,
17 control panel, 18 ratchet wheel, 19 braking means, 20 fixing part,
21 rotating shaft, 22 detecting section, 23 braking section, 24 support member,
25 bearing plate, 26 bolt, 27 lever support, 27a screw hole,
28 lever, 29 shoe, 30 recess, 31 bolt,
32 angle adjustment support, 33 lever, 34 bolt, 35 second screw hole,
36 lever support, 37 lever, 38a bolt, 38b bolt

Claims (6)

A fixed part fixed to the main frame of the man conveyor,
A pivot shaft rotatably provided on the fixed portion;
A detector that is provided on the rotating shaft and is disposed so as to protrude in a predetermined direction from the rotating shaft, and detects a break of a drive chain that transmits a driving force of a driving device of a man conveyor to the main shaft;
Braking provided on the rotating shaft and disposed so as to protrude in a predetermined direction from the rotating shaft, and brakes the rotation of the main shaft when the detection portion detects the breaking of the drive chain. An emergency braking device for a man conveyor comprising:
A part of the detection unit is configured to be detachable from the rotation shaft, and an angle with respect to the braking unit can be adjusted within a predetermined range. The detector
A lever support provided integrally with the rotation shaft;
A lever that is detachably provided on the lever support portion, is disposed so as to protrude in a predetermined direction from the rotation shaft, and is capable of adjusting an angle with respect to the lever support portion within a predetermined range;
A shoe provided at the tip of the lever and placed on the drive chain from above;
The emergency brake device for a man conveyor according to claim 1, further comprising: The lever
A recess that is open to one side and in which a rotation shaft is disposed at a predetermined position inside from the opening;
Any one of a lever mounting hole and a screw hole formed at a position away from the recess by a predetermined distance;
And the opening direction of the recess is formed so that the lever does not rotate about the one in a state where the rotation shaft is arranged at the predetermined position in the recess,
The emergency brake device for a man conveyor according to claim 2, wherein the lever support portion is formed with the other of the lever mounting hole and the screw hole corresponding to the one. The detector
A lever support provided integrally with the rotation shaft;
An angle adjustment support portion that is rotatably provided on the rotation shaft, and a part of the rotation shaft is fixed to the lever support portion so that an angle with respect to the lever support portion is adjustable within a predetermined range;
A lever that is detachably provided on the angle adjustment support portion and is arranged so as to protrude in a predetermined direction from the rotation shaft;
A shoe provided at the tip of the lever and placed on the drive chain from above;
The emergency brake device for a man conveyor according to claim 1, further comprising: The angle adjustment support portion is formed with either an angle adjustment hole or a screw hole at a position away from the rotation axis by a predetermined distance.
5. The emergency brake device for a man conveyor according to claim 4, wherein the lever support portion is formed with the other of the angle adjusting hole and the screw hole corresponding to the one.   The emergency braking device for a man conveyor according to any one of claims 1 to 5, wherein the detection unit and the braking unit are disposed close to the main frames on both sides.

Images