JP2928676B2 - Variable speed passenger conveyor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a passenger conveyor such as an electric road or an escalator, and more particularly to a variable-speed passenger conveyor that changes the moving speed of a tread plate between an entrance and an exit.

[0002]

2. Description of the Related Art In a conventional variable-speed passenger conveyor, as described in, for example, Japanese Patent Application Laid-Open No. 50-43686, all the treads are connected by a related link mechanism, and a gap between adjacent treads is provided at the entrance. The moving speed of the tread is made variable by making it narrower and larger in the middle. In addition,
As described in JP-A-2-175587 and JP-A-44-17817.
In addition, a drive belt is formed along the tapered peripheral surface of the passive wheel provided on the tread.
The moving speed can be changed by friction contact or bells with different speeds
A device that moves the floor platform at a variable speed by arranging multiple
Proposed.

[0003]

SUMMARY OF THE INVENTION It is an object of the prior art described above are not taken into consideration any way for simplification of the passenger conveyor construction, in particular, the configuration of the shift driving the stepping plate is complicated co
In addition, the reliability when applied to actual
It could not be said that safety was considered.

An object of the present invention is to provide a variable-speed passenger conveyor capable of changing the moving speed of a tread plate with a simple structure. Another object of the present invention is to improve reliability and
To provide a variable speed passenger conveyor with high safety and security
is there.

[0005]

Above object for Solving the Problems includes a plurality of step boards to be moved by the running wheels between opening descended entrance gate portion, before
The tread plate is disposed between the entrance and the exit to move the tread plate.
Power transmission mechanism that moves along the direction, and provided on the tread plate
And rotate by contact with the power transmission mechanism.
Wherein the variable speed form passenger conveyor provided with a rotating body the running wheel is rotated, the power transmission mechanism is placed in a straight line in plan view, and the rotation of the contact position of the rotating body of the power transmission mechanism Te This is achieved by providing means for changing only in the radial direction of the body.

[0006]

According to the above construction, since the power transmission position is changed in the radial direction of the rotating body, the moving speed of each of the treads can be changed by changing the rotation speed of the rotating body.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to an electric road shown in FIGS. The electric road has a plurality of treads 3 moving on a pair of left and right guide rails 2A and 2B fixed to the frame 1, and a moving handrail 4 provided along the traveling direction of the treads 3.

[0008] The plurality of treads 3 are arranged endlessly so that a passenger can ride on the outward path and return to the original position on the return path under the outward path. As shown in FIGS. 3, 6, and 7, these treads 3 are mainly composed of a tread frame 5 and a main cleat 6 provided horizontally on the top surface 5U of the tread frame 5. The main cleat 6 is formed by continuously bending a thin steel plate, for example, a stainless steel plate in a waveform,
The corrugated mountain is fixed on the tread frame 5 so that the ridge line of the peak coincides with the tread plate moving direction. Side cleats 7A and 7B are adjacent to both ends of the waveform of the main cleat 6, and front cleats 8A and 8A having substantially the same cross section are adjacent to both ends of the main cleat 6 along the tread plate moving direction. A rear cleat 8 </ b> B is arranged and fixed on the tread plate frame 5. The side cleats 7A and 7B, the front cleat 8A, and the rear cleat 8B have a different color from the main cleat 6, for example, a yellowish color with an alerting effect, and use a molded product formed of, for example, a synthetic resin material.

The main cleat 6 may be formed into a corrugated shape using an aluminum alloy material.

A rotary shaft 9 extends through the tread plate frame 5 in the width direction of the tread plate 3 via a bearing 9B, and front wheels 10A and 10B are fixed to both ends. This front wheel 10
A, 10B and rear wheels 11A, 11
B is supported by the tread frame 5. These front wheels 10
A running wheel composed of A, 10B and rear wheels 11A, 11B
Rolls on the guide rails 2A, 2B. In addition, there is no connection between the adjacent treads 3, and each tread 3 can freely travel.

In addition, as shown in FIG. 3, a power conversion mechanism for changing the direction of the transmitted driving force and a speed conversion mechanism for changing the speed of the transmitted driving force are provided at an intermediate portion of the rotating shaft 9. A mechanism is provided. More specifically, the power conversion mechanism and the speed conversion mechanism fix a spline hub 12 having an engagement portion formed of a large number of concave grooves or protrusions along the axial direction formed on the outer periphery at an intermediate portion of the rotating shaft 9. The rotating body 13 is engaged with the engaging portion of the spline hub 12 so that it can move only in the axial direction. The rotating body 13 includes a pair of rotating bodies 13A and 13B having inclined surfaces 13a and 13b on opposing surfaces, respectively.
B, spring seats 14A and 14B are fixed to the rotating shaft 9 at fixed intervals, respectively,
Pressing springs 15A and 15B are mounted between the spring seats 14A and 14B and the rotating bodies 13A and 13B, respectively, so as to press A and 13B in directions approaching each other.
When the pair of rotating bodies 13A and 13B are in contact with each other, a V-groove is formed by the inclined surfaces 13a and 13b.

Further, as shown in FIGS. 6 and 7, one end of a large number of elongated bodies 16 is rotatably connected to the rear end side of the tread plate 3 in the movement direction by pins 17. In addition, a blocking plate 18 is arranged below these elongated bodies 16,
One end is connected via a pin 17. This long body 1
The other end of the closing plate 6 and the closing plate 18 is formed so that it can be inserted into and removed from the tread plate 3 adjacent to the rear side in the moving direction. That is, the waveform of the main cleat 6 and the top surface 5U of the tread frame 5
The elongated body 16 is inserted into and removed from the space 6H formed by the above, and the closing plate 18 is inserted into and removed from the guide grooves 18A and 19B provided below the top surface 5U of the tread plate frame 5.

Next, a power transmission mechanism for moving the tread plate 3 configured as described above will be described. As shown in FIG. 2, a power transmission body 20 formed in an endless shape is arranged over the entire length below the outward side of the arrangement made by the plurality of treads 3. The power transmission body 20 has a trapezoidal friction member 2 having the same slopes 21a and 21b as the slopes 13a and 13b of the pair of rotating bodies 13A and 13B.
1 and a chain 22 that connects connecting portions 21c extending from the bottom of the friction body 21 having a trapezoidal cross section. The power transmission body 20 is wound around a drive pulley 23 and a driven pulley 24 supported by the frame 1.
The tread 3 is moved in the moving direction, and the outward path is opposed to the outward path of the tread 3. The drive pulley 23 has a sprocket 25A coaxially, and a drive chain 25B.
The torque of the electric motor 26 is transmitted through the motor. The driven pulley 24 is supported by a support base 24 so that it can move in the chain tension direction in order to absorb the elongation of the chain 22.
S, and is constantly pressed in the tension direction by the elastic body 27. The power transmission body 20 is guided by the guide rail 28 so that the friction body 21 is opposed to the V-groove formed by the pair of rotating bodies 13A and 13B from below. The guide rail 28 is arranged so as to be straight when viewed in plan so as to guide the movement of the chain 22 along the moving direction of the tread plate 3.
The height is changed between the getting on / off portion and the intermediate portion where the passenger gets on and off the vehicle when viewed from the side.
That is, as shown in FIG. 2, an uphill slope having an inclination angle S with respect to the moving direction is set near the entrance, the height of the upper slope is maintained in the middle section, and the downhill of the inclination angle S is set near the exit. The height of the straight guide rail 28 is changed only in the radial direction of the rotating body 13 so as to form a gradient. In this way, by changing the height of the straight guide rail 28 in the radial direction of the rotating body 13, the guided power transmission body 20 is also displaced up and down with respect to the moving direction. The body 21 includes the pair of rotating bodies 13A, 13A.
The contact position with the V groove formed by B is changed in the radial direction. In other words, the power transmitting position or the power transmitting / receiving position to the tread 3 changes as the tread 3 moves.

Next, guidance and driving of the moving handrail 4 will be described. The moving handrail 4 has a C-shaped cross section, and is provided with a guide member 29G (FIG. 1) provided at the upper end of the balustrade component 29.
(See Ref.). As shown in FIGS. 8 and 9, the moving handrail 4 absorbs a change in the gap between the plurality of handrails 30 and the adjacent handrails 30 and closes the gap, for example, a gap closing member such as a bellows. Each of the handrails 30 includes a tongue piece 32 extending downward from an inner central portion, a plurality of holes 33 extending in the moving direction along a C-shaped cross section, and an adjacent handrail unit 30.
And a positioning rod 34 to be inserted into and removed from the hole 33.

The tongue piece 32 pivotally supports a pair of guide rollers 35A and 35B which are vertically spaced from each other, and sandwiches a guide rail 36 fixed to the frame 1. Further, the tongue piece 32 pivotally supports one end of a first link 37A and a second link 37B having the same length at the same position. The other end of these two links 37A, 37B is
It is supported by. At this time, the first link 37A and the second link 37B of the adjacent tongue piece 32 together with the driving piece 3
8 and supported in the same position, and are continuously zigzag as a whole. The driving piece 38 pivotally supports a pair of guide rollers 39A and 39B positioned at an interval above and below, and sandwiches a guide rail 40 fixed to the frame 1. The distances H ₁ and H ₂ between these two guide rails 36 and 40 are set so that the vicinity of the entrance becomes gradually narrower in the moving direction, similarly to the change in the height of the guide rails 28 of the chain 22. Further, the fixing position of the guide rail 40 is changed so that the intermediate portion maintains a narrow interval and the vicinity of the exit gradually widens.

The driving piece 38 also has a spacer 41, and has a length such that the driving piece 38 contacts an adjacent driving piece 38 when the distance between the two guide rails 36 and 40 is the widest. Reference numeral 42 denotes an elastic body such as rubber provided at the tip of the spacer 41 and has a buffering action when it comes into contact with the adjacent driving piece 38. 43 is a projection provided on the spacer 41.
As shown in FIG. 2, the protrusions 43 are provided with handrail driving devices 44A, 44A provided in the end portions of the balustrade constituent member 29.
B and drives the moving handrail 4. These handrail driving devices 44A and 44B are composed of an electric motor 45 and this electric motor 4
5 includes a chain 46 for transmitting power, and a sprocket 47 having teeth which are rotated by the chain 46 and engage with the projections 43.

Next, the operation of the electric road configured as described above will be described.

First, as shown in FIG.
When there is the tread 3 in the acceleration region A where the slope is uphill, FIG.
As shown in FIG.
It is in contact with the outside of the V groove made by A and 13B. In this state, the friction body 21 moves in the direction opposite to the tread plate moving direction, that is,
When driven at a constant speed in one direction from the exit side to the entrance side, the rotating bodies 13A and 13B in contact therewith begin to rotate due to frictional force. Therefore, the rotating body 13A,
13B constitutes a power conversion mechanism for converting the one-way driving force into a rotational force. This rotating body 13A, 1
3B, the front wheels 10A, 10A
B is driven, and the tread plate 3 travels along the guide rails 2A and 2B by itself. Since the power transmission body 20 is guided uphill by the guide rail 28, the friction body 21
And as shown in FIG. 5, the V-groove is pushed open against the pressing springs 15A, 15B pressing the rotating bodies 13A, 13B, and bites into the inner diameter side of the V-groove. As a result, the friction body 2
In other words, since the power transmission position changes from the outer diameter side to the inner diameter side, the rotating bodies 13A and 13B are driven at a constant speed.
The rotation speed of 13B gradually increases, and the self-running speed of the tread 3 also increases. Therefore, the inclined surfaces 13a, 13b forming the V-groove are a rotation speed conversion mechanism for changing the rotation speed of the front wheels 10A, 10B, a movement speed conversion mechanism for changing the movement speed of the tread, and a power transmission body. 20
A drive speed conversion mechanism that changes the drive speed transmitted from the motor. With the self-running speed increased in the acceleration region A, the tread plate 3 self-runs in the middle high-speed region B, and then enters the deceleration region C near the exit. In this deceleration region C, the rotating bodies 13A, 13A
The friction body 21 that was in contact with the back of the V groove of B is shown in FIGS.
As shown in FIG. 3, the front wheel 1 gradually moves to the outside of the V-groove,
The rotation speed of 0A and 10B is gradually reduced.

As described above, the tread plate is located near the entrance,
The vehicle gradually accelerates from a safe speed for entry, maintains the accelerated maximum speed in the middle portion, and decelerates from the maximum speed to a safe speed to get off near the exit. Therefore, a variable speed electric road in which the moving speed of the tread plate is the highest in the middle can be obtained. Further, since the tread plate 3 can be driven at a variable speed by a simple power transmission mechanism disposed over the entire length in the moving direction and a speed conversion mechanism provided in the tread plate 3, a complicated link mechanism is used. Therefore, a variable speed electric road having a simple structure can be obtained. further,
The power transmission mechanism changes only in the radial direction with respect to the rotating body 13.
And the speed of movement of the footboard 3 is changed to
The installation of the delivery mechanism and the driving structure of the tread are simple and structural
And high reliability and safety.

In the acceleration area A and the deceleration area C, the moving speeds of the treads 3 are different from each other. As a result, a gap is formed between the treads 3, and the gap has a large number of lengths which are inserted into and removed from adjacent treads. Since the scale 16 is present, there is no danger that the passenger will fall between the treads even if the passenger walks on the treads. Furthermore, since the long body 16 has a gap between adjacent long bodies, the inside of the frame 1 can be seen from this gap. It is the closing plate 18 that makes this invisible, and each of the tread plates 3 together with the long body 16.
The gap between them is closed.

On the other hand, the moving handrail 4 is driven in accordance with the speeds of the acceleration area A, the high-speed area B and the deceleration area C in the same manner as the driving of the tread plate 3. The speed is controlled by changing the interval between the two guide rails 36 and 40, thereby changing the opening angles θ ₁ and θ ₂ of the first link 37A and the second link 37B, and narrowing the interval between the handrail units 30. It is changed to the wide-interval L ₂ from the interval L _1. Specifically, if during the guide rails 36 and 40 of the wide pitch H _1, the first link 37A and the second link 37B is narrow angle theta _1,
The time between the handrail itself 30 has a distance L ₁ to the gap closing member 31 is most narrowed. Conversely, guide rail 3
If during 6,40 is narrow interval H _2, the first link 37
A and the second link 37B have a narrow angle θ ₂ , and at this time, the gap between the handrails 30 has a wide interval L ₂ where the gap closing body 31 extends most. By changing the interval between the handrails 30 in this manner, the moving speed of the handrails 30 is changed. Of course, the two guide rails 36, 4
The interval of 0 is gradually changed so that there is no rapid change in speed.

Further, the moving speed of the handrail unit 30 is:
Failure to synchronize with the moving speed of the tread 3 leads to a major accident in which the passenger falls. Therefore, although not shown, a synchronization device for synchronizing the moving speed of the handrail unit 30 and the moving speed of the tread plate 3 is used.

The moving handrail 4 is driven by a link. However, the handrail unit 30 is configured in the same manner as the driving of the tread plate 3, and is driven by a similar power transmission mechanism. It may be.

In the above embodiment, one power transmission mechanism is installed over the entire length in the direction in which the treads move.
Numerals 12 show another embodiment, in which the tread is moved by a plurality of power transmission mechanisms. That is, a plurality of disks 48A are attached to the rotating shaft 9 of the front wheels 10A and 10B of each tread plate 3.
-48B, and a plurality of power transmission mechanisms 49A, 50A, 51A, 52A, 53, 52
B, 51B, 50B, 49B are displaced in the tread width direction. In the plurality of power transmission mechanisms, power transmission mechanisms 49A and 49B for transmitting a safe moving speed for passengers to get on and off are arranged at the entrance / exit portion, and then the moving speed is sequentially reduced as compared with the power transmission mechanisms 49A and 49B. The power transmission mechanisms 50A, 51A, 52A set so as to be faster are arranged in the tread plate acceleration area, and the power transmission mechanisms 52B, 51B, 50B set so as to gradually decrease the moving speed.
Are disposed in the tread plate deceleration region, and a power transmission mechanism 53 for continuously transmitting the highest moving speed is disposed between the acceleration / deceleration regions. As shown in FIG. 12, for example, the adjacent power transmission mechanisms 52A, 53, and 52B are arranged so as to overlap each other by one dimension in the direction of movement of the tread, so that power is always transmitted to the tread. Specifically, the adjacent power
Transmission mechanism 49A-50A, 50A-51A, 51A-52
A, 52A-53 and 53-52B, 52B-51B,
The difference in moving speed between the 51B-50B and 50B-49B is the smallest.
Is small, the end between these adjacent power transmission mechanisms
When viewed from the side, the l dimension overlaps in the tread plate movement direction.
You do it. Each power transmission mechanism includes a power transmission body 54 formed in an endless shape, and a pair of pulleys 55A and 55B that rotate by winding the power transmission body 54 at both ends. The power transmission body 54 is moved using one of the pulleys 55A and 55B as a driving pulley. 56, 57 are adjacent power transmission mechanisms 52
A, 52B is a pulley around which the power transmission body 54 is wound.

Next, how the tread plate 3 is moved in the above configuration will be described. At the time of starting, the entire power transmission mechanism is driven, and the power transmission body 54 is moved at the set speed. In this state, the tread plate 3 located at the entrance faces the power transmission mechanism 49A. At this time, the disc 48E comes into contact with the power transmission body 54 of the power transmission mechanism 49A. The front wheels 10A, 10B are rotated via the rotating shaft 9 by the rotation force, and the guide rails 2A, 2
Rolling on B moves the tread 3. Next, when the tread 3 reaches the power transmission mechanism 50A, the disk 48D of the tread 3 comes into contact with the power transmission 54 of the power transmission 50A, and after the l-dimension movement, the disk 48E becomes the power transmission 54 of the power transmission 49A. Move away from It should be noted that, within the range of the l dimension, two discs 48
E and 48D are transmitted at different speeds by the power transmission members 54 of the power transmission mechanisms 49A and 50A, respectively, and the speed difference at that time is caused by the slip between the disks 48E and 48D and the power transmission member 54. Can be absorbed. In this way, the tread plate 3 obtains the motive power of the plurality of power transmission mechanisms set so as to gradually increase the moving speed, and accelerates. On the contrary, the power of the power transmission mechanism set so as to gradually lower the moving speed is obtained, the speed is reduced, and the moving speed returns to the same level as the entrance. As mentioned above, multiple power transmission
Mechanisms 49A, 50A, 51A, 52A, 53, 52B,
The power from 51B, 50B, 49B is transferred to a plurality of discs 48A.
Change the moving speed of the tread 3 by receiving it selectively by ~ 48E
Let it do.

According to the above embodiment, the moving speed of the tread 3 can be accelerated / decelerated by a simple mechanism.

In the embodiment shown in FIGS. 10 to 12, the plurality of power transmission mechanisms are set at different speeds.
The moving speed may be changed by changing the diameter of 48A to 48E. Specifically, the diameter of each disk serving as the power conversion mechanism is changed.
If you want to output a different moving speed,
At the entrance, secure a safe moving speed that does not interfere with getting on and off
And move faster as you go from the entrance to the middle
And gradually slows down from the middle to the exit
Set the diameter of each disk to
After the structure 52A, the power transmission mechanism 53 is connected to the disc 48B and the disc.
48A is selected before and after
Part of the ends of the power transmission mechanisms 52A and 53 viewed from the side
By making them overlap, sudden changes in speed change are alleviated.
As a result, it is possible to prevent passengers from falling over.

[0028]

[0029]

The embodiment described above is directed to a motorized road which is installed horizontally without any steps on the outward side of the tread.
The present invention can be applied to an electric road which is installed at an angle, and can also be applied to an escalator in which a step is formed on a tread plate on the outward path. That is, as compared to the electric road, the escalator tread runs on the inclined portion, but the tread can be moved by the mechanism described in the above embodiment, and the moving speed is increased to increase the distance between adjacent treads. In some cases, the riser provided at the rear end of the tread can be tilted, and its length in the height direction can be made variable so as to close the gap between adjacent treads. Alternatively, a dedicated closing member may be provided instead of the riser.

Further, in the above-described embodiment, an example is described in which the power transmission mechanism and the power conversion mechanism (or the rotation speed conversion mechanism or the moving speed conversion mechanism) opposed thereto are used in a one-to-one manner. By using a plurality of the power transmission mechanisms and a plurality of the power conversion mechanisms (or a rotation speed conversion mechanism or a moving speed conversion mechanism) as a set, a reliable variable-speed passenger conveyor can be obtained.

[0032]

As described above, according to the present invention, the moving speed of the tread can be changed with a simple structure.
A variable-speed passenger conveyor with high reliability and safety can be obtained.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of an electric road showing an embodiment of a variable-speed passenger conveyor according to the present invention.

FIG. 2 is a schematic side view of an electric road showing an embodiment of a variable-speed passenger conveyor according to the present invention.

FIG. 3 is a vertical sectional front view of a tread of an electric road showing an embodiment of a variable-speed passenger conveyor according to the present invention.

FIG. 4 is a drawing of essential parts of the tread shown in FIG. 3;

FIG. 5 is a drawing of essential parts of the tread shown in FIG. 3;

FIG. 6 is a perspective view of an electric road tread showing one embodiment of a variable-speed passenger conveyor according to the present invention.

FIG. 7 is a vertical cross-sectional side view along the line VII-VII in FIG. 6;

FIG. 8 is a schematic vertical sectional side view showing a driving mechanism of a moving handrail of a variable-speed passenger conveyor according to the present invention.

FIG. 9 is a schematic vertical sectional side view showing an operating state of the driving mechanism of the moving handrail shown in FIG. 8;

FIG. 10 is a longitudinal sectional front view of a tread of an electric road showing another embodiment of the variable-speed passenger conveyor according to the present invention.

FIG. 11 is a plan view of an arrangement of a power transmission mechanism of an electric road showing another embodiment of the variable-speed passenger conveyor according to the present invention.

FIG. 12 is an enlarged side view of a part of the power transmission mechanism of FIG. 11;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Frame body, 2A, 2B ... Guide rail, 3 ... Tread plate, 4 ... Moving handrail, 5 ... Tread plate frame, 6 ... Main cleat, 9 ... Rotation axis, 1
0A, 10B ... front wheel, 11A, 11B ... rear wheel, 13 ... rotating body, 13a, 13b ... inclined surface, 16 ... long body, 18 ...
Blocking plate, 20: power transmission body, 28: guide rail.

Continued on the front page (72) Inventor Kazutoshi Takeda 1070 Ma, Katsuta-shi, Ibaraki Pref.Hitachi, Ltd.Mito Plant, Hitachi, Ltd. 72) Inventor Hisao Chiba 1070 Ma, Katsuta-shi, Ibaraki Pref.Hitachi, Ltd.Mito Plant, Hitachi Ltd.

Claims (4)

(57) [Claims] 1. A plurality of treads, which are moved by a traveling wheel between an entrance and an exit, and a power transmission disposed between the entrance and the exit to move in the direction of travel of the treads. A variable speed passenger conveyor provided with a mechanism and a rotating body provided on the tread plate and rotated by contact with the power transmission mechanism to rotate the running wheels. And a means for changing a contact position of the power transmission mechanism with the rotating body only in a radial direction of the rotating body is provided. 2. A plurality of treads which are moved by a running wheel between a door portion and an exit portion, and a power transmission which is disposed between the ride portion and the exit portion and moves along the tread plate moving direction. In a variable speed passenger conveyor provided with a mechanism and a rotating body provided on the tread plate and rotated by contact with the power transmission mechanism to rotate the running wheels, the rotating body may change an interval between the rotating bodies. The power transmission mechanism is composed of two members, each having a V-shaped groove formed by opposing the two members and increasing from an inner diameter to an outer diameter. An endless power transmission body that contacts the opening side of the V-groove, and guides the power transmission body such that the contact position of the power transmission body with the rotating body is changed only in the radial direction of the rotating body. Guide rail Variable speed form passenger conveyer characterized and. 3. A plurality of treads, which are moved by a running wheel between the entrance and the exit, a power transmission mechanism disposed between the entrance and the exit, and provided on the tread. And a power conversion mechanism that converts the power of the power transmission mechanism into rotational force and transmits the power to the traveling wheels, wherein the power conversion mechanism includes a plurality of power conversion mechanisms provided on the tread plate.
Made from the power conversion mechanism, the power transmission mechanism, said plurality
Consists of a plurality of power transmission mechanism moving speed is different to sequentially contact the power conversion mechanism, the plurality of power transmission mechanism
The ends of the power transmission mechanisms with small differences in moving speed
Variable speed forms a passenger conveyor, characterized in that arranged so that a part becomes heavy in the step board moving direction as viewed from. 4. A plurality of treads, which are moved by a running wheel between the entrance and the exit, a power transmission mechanism disposed between the entrance and the exit, and provided on the tread. The power of the power transmission mechanism is converted into torque and transmitted to the running wheels.
Variable speed form passenger conveyor smell and a dynamic force converting mechanism that
The power conversion mechanism is different from the power conversion mechanism provided on the tread plate.
It comprises a plurality of power conversion mechanisms that output a moving speed,
The power transmission mechanism selectively connects with the plurality of power conversion mechanisms.
It a plurality of power transmission Organization moving speed of erosion is the same
And the order selected from among the plurality of power transmission mechanisms.
When looking from the side, the end of the power transmission mechanism
A variable-speed passenger conveyor, which is arranged so as to partially overlap in the direction in which the treads move .