JP2001097658A - Variable speed passenger conveyor - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a comfortable ride comfort to passengers by suppressing the production and installation costs, generating no noise from a variable speed mechanism. SOLUTION: Pallets 1a, 1b, 1c of a conveyor are provided.
And a primary winding 5 of the linear motor installed in an acceleration / deceleration section for changing the moving speed of the pallets 1a, 1b, 1c. The pitch τ is changed according to the acceleration / deceleration, or the power supply frequency f of the primary winding 5 composed of the plurality of coil units 6 is adjusted for each coil unit 6 of the primary winding 5 according to the acceleration / deceleration.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a variable-speed passenger conveyor capable of partially changing a moving speed including a moving handrail in a line, and more particularly to an improvement of a pallet in an acceleration / deceleration section and a driving device of the moving handrail.

[0002]

2. Description of the Related Art In recent years, passenger conveyors have been developed from those having a constant speed from the entrance to the exit, to those of a variable speed type for the purpose of improving the carrying capacity. This variable-speed passenger conveyor is set at the same speed as a general constant-speed conveyor at the entrance, but then gradually accelerates,
After maintaining a constant high speed in the middle part, it gradually decelerates at the exit.

In such a variable-speed passenger conveyor, a variable-speed mechanism generally changes a pallet interval, and a moving handrail is also controlled at a variable speed in synchronization with the pallet.

FIG. 14 shows, for example, Japanese Patent Application Laid-Open No. 10-167742.
FIG. 1 shows a first example of a conventional variable-speed passenger conveyor disclosed in Japanese Patent Application Laid-Open Publication No. H10-209, and is a front view of a pallet driving unit.

In the figure, 50 is a pallet, 51 is a screw installed along the line below the pallet 50, and 52 is its screw thread. The pitch is narrow and the speed is increased where the speed is to be reduced. The pitch is set wide where it should be. Reference numeral 53 denotes a bracket that is provided to hang down from the lower surface of the pallet 50, and reference numeral 54 denotes a cam follower attached to the bracket 53 so as to be able to abut on the screw surface of the screw 51.

In the variable-speed passenger conveyor of the first conventional example, the moving speed of the pallet 50 can be gradually increased in the acceleration section in which the pitch of the threads 52 becomes wide, and the pitch of the threads 52 becomes narrow. In the deceleration section, the moving speed of the pallet 50 can be gradually reduced.

FIG. 15 shows a second example of a variable-speed passenger conveyor disclosed in, for example, JP-A-5-229773, in which (a) is a front view of a moving handrail drive unit,
(B) is a side view.

In FIG. 1, reference numeral 60 denotes an extendable movable handrail disposed on both sides of a traveling pallet (not shown), and a plurality of handrail portions 61a separated in the line direction and arranged in series, and these handrail portions 61a and 61b. It is formed from a plurality of elastic joint members 61b that connect the spaces. Reference numeral 62 denotes a screw in which the screw pitch is set to be narrow at a position where the speed is to be reduced, and a screw pitch is set to be wide at a position where the speed is to be increased. 63 is a bearing for supporting the screw 62;
A handrail hook 65 fixed to the handrail portion 61a of the moving handrail 60 so as to be able to contact the screw surface of the handrail 65 is a guide rail arranged parallel to the axis of the screw 62 to guide the handrail hook 64.

In the variable-speed passenger conveyor according to the second conventional example, the moving speed of the handrail portion 61a can be gradually increased in an acceleration section in which the screw pitch of the screw 62 becomes large, and the deceleration in which the screw pitch of the screw 62 becomes small. In the section, the moving speed of the handrail portion 61a can be gradually reduced.

[0010]

As described above, in the conventional variable-speed passenger conveyor, the pallet 50 and the moving handrail 60 are driven by the screw driving method, and the acceleration / deceleration control of the pallet 50 and the moving handrail 60 is performed as described above. This is done by changing the screw pitch of the screw. For this reason, the screws 51 and 62 must be installed over the entire length of the acceleration / deceleration section, which makes it difficult not only to support these long screws 51 and 62 but also to increase the manufacturing and installation costs. was there.

Further, since the cam follower 54 and the handrail hook 64 come into contact with the screw surfaces of the screws 51 and 62, the driving force is transmitted, so that a source of noise such as a collision sound and a sliding sound is generated. Had become.

Further, since a range where the screw pitch of the screws 51 and 62 is always larger than the diameters of the cam followers 54 and the handrail hooks 64 that come into contact therewith, the pallet 50 and the moving handrail 60 are shaken due to backlash, and comfort is increased. There was also a problem that spoiled.

[0013] It is a technical object of the present invention to reduce the manufacturing and installation costs of a variable-speed passenger conveyor, to provide no noise from the variable-speed mechanism, and to provide a comfortable ride to passengers. .

[0014]

The variable speed passenger conveyor according to the first aspect of the present invention has the following configuration. That is, in a variable-speed passenger conveyor that moves a plurality of pallets along a circulation path composed of endless continuous running rails and changes the distance in the traveling direction of an adjacent pallet to adjust the moving speed, Equipped with a metal plate of the provided linear motor, and a primary winding of the linear motor installed in an acceleration / deceleration section for changing the moving speed of the pallet, and changing a pole pitch of the primary winding in accordance with the acceleration / deceleration. It was made.

Further, a variable-speed passenger conveyor according to a second aspect of the present invention has the following configuration. That is, in a variable-speed passenger conveyor that moves a plurality of pallets along a circulation path composed of endless continuous running rails and changes the distance in the traveling direction of an adjacent pallet to adjust the moving speed, It is provided with a metal plate of the provided linear motor, and a primary winding of a linear motor composed of a plurality of coil units installed in an acceleration / deceleration section for changing the moving speed of the pallet. The adjustment is made for each coil unit according to the acceleration / deceleration.

Further, the variable speed passenger conveyor according to claim 3 of the present invention has the following configuration. That is, in a variable speed passenger conveyor in which a plurality of handrail pieces to be gripped by a passenger travel on a traveling rail provided in parallel with an endlessly formed passenger conveyor, a linear motor provided on the handrail piece is used. It is provided with a metal plate and a primary winding of a linear motor installed in an acceleration / deceleration section for changing the moving speed of the handrail piece, wherein the pole pitch of the primary winding is changed according to the acceleration / deceleration. .

Further, a variable-speed passenger conveyor according to a fourth aspect of the present invention has the following configuration. That is, in a handrail device of a variable-speed passenger conveyor that moves a plurality of handrail pieces to be gripped by a passenger on a traveling rail provided in parallel with an endless passenger conveyor, the handrail pieces are provided on the handrail pieces. It has a metal plate of a linear motor and a primary winding of a linear motor composed of a plurality of coil units installed in an acceleration / deceleration section for changing the moving speed of a handrail piece. Is adjusted for each of the coil units.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. Hereinafter, the present invention will be described with reference to the illustrated embodiments. 1 is a top view schematically showing the vicinity of an acceleration / deceleration section of a variable-speed passenger conveyor according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line AA of FIG.
(A), (b), and (c) show examples of changes in the pole pitch of the primary winding, (a) is a schematic diagram thereof, and (b) is an example of changes in the pole pitch in the acceleration / deceleration section Z2. FIG. 4C is a schematic winding diagram showing another example of a change in the pole pitch in the acceleration / deceleration section Z2, and FIGS. 4A and 4B are synchronous with the pole pitch. In the graph showing the relationship with the speed, the graph (a) corresponds to the example (b) in FIG. 3, and the graph (b) corresponds to the example (c) in FIG. FIGS. 5A and 5B show an example of a change in the power supply frequency of the primary winding. FIG. 5A shows a change in the power supply frequency between the coil units in the acceleration / deceleration section Z2 and a change in the power supply frequency. Is a schematic diagram showing a system in which the power supply frequency is fixed. FIG. 3B shows that the power supply frequency is changed between the coil units in the acceleration / deceleration section Z2 and the power supply frequency is also changed in each coil unit by inverter control. It is a schematic diagram which shows the system which did in this way.

In the variable-speed passenger conveyor of the first embodiment, pallets 1a, 1b, 1c,... Run on running rails 2 by running rollers 3. In the low-speed section Z1, the traveling speed of the pallets 1a, 1b, 1c... Is reduced by reducing the distance between the pallets 1a, 1b, 1c. In the high-speed section Z3, the pallets 1a, 1b, 1
By increasing the mutual distance between the pallets 1
a, 1b, 1c,... In the acceleration / deceleration section Z2, when the immediately preceding low-speed section Z1 is the entrance as shown in FIG. 1, by gradually widening the interval between the pallets 1a, 1b, 1c... From the low-speed section Z1 to the high-speed section Z3. The running speed is gradually accelerating.

Conversely, if the low speed zone Z1 is the exit, the acceleration / deceleration zone Z2 is shifted from the high speed zone Z3 to the low speed zone Z1.
The traveling speed is gradually reduced by gradually narrowing the distance between the pallets 1a, 1b, 1c.

Here, the mutual spacing of the pallets 1a, 1b, 1c... Refers to the spacing between specific positions of the pallets, and even if the mutual spacing of the pallets 1a, 1b, 1c. There is no gap between them. In other words, when this conveyor is applied only to a straight line, comb teeth are formed at one end of each pallet so as to form a tenon with the lower surface of an adjacent pallet, and a curved portion exists in the line of the conveyor. In this case, each pallet is formed of a slidable plate with a part of the pallets overlapping one another up and down. By appropriately selecting the pallet shape according to the purpose as described above, it is possible to prevent a gap from being generated between the pallets 1a, 1b, 1c,.

The pallets 1a, 1b, 1c,.
A metal plate 4 serving as a secondary mover of the linear induction motor is fixed, and a primary winding 5 serving as a primary stator is disposed at a position where the metal plate 4 can pass in an acceleration / deceleration section. The pallet is driven by the interaction between the metal plate 4 and the primary winding 5. Synchronous speed of linear induction motor vs
Is known to be expressed by the following equation. νs = 2τf ‥‥‥‥‥‥‥‥‥‥‥‥ (1) where τ is the pole pitch of the primary winding, and f is the power supply frequency. The pole pitch τ is the length of a half cycle of the magnetic flux density, which is the traveling wave magnetic field formed in the primary winding. For example, in the case of a three-phase power supply, the distance between the three-phase UVW windings, that is, FIG. b) The distance between three slots shown in (c), and in the case of a two-phase winding, the distance between two slots. When the three-phase UVW windings are wound out of phase such as U1U2V1V2W1W2 so that the traveling wave magnetic field moves smoothly, the pole pitch τ is the distance between six slots. As is clear from Equation 1, the pole pitch τ
Becomes longer, the synchronization speed becomes faster, and as the pole pitch τ becomes shorter, the synchronization speed becomes slower.

The primary winding 5 has a plurality of coil units 6
The coil unit 6 has a three-phase, UVW winding
This is the minimum unit of the combination. In the example of FIGS.
UU winding, VV winding, W
W windings are respectively connected. In the low speed section Z1,
The pole pitch τ is narrowed, and in the acceleration / deceleration section Z2,
Change the pole pitch τ gradually, and during acceleration
Z1 pole pitch τ _L From the highway section Z3
Τ_H Gradually widen, or high speed section during deceleration
Z3 pole pitch τ_H From the low speed section Z1
Τ_L To gradually narrow. In high-speed section Z3,
Pitch τ_H Is the pole pitch τ of the low speed section Z1._L Than
Keep it wide. Thus, the pole pitch τ of the primary winding 5
Of the pallets 1a, 1b, 1c...
The dynamic speed is determined by the synchronous speed determined by the pole pitch τ.
Can be almost the same.

In the acceleration / deceleration zone Z2, the moving speed is set to the pole pitch.
There are two ways to change (increase here) by τ
real. One is to set the pole pitch τ to τ in FIG.
₁ , Τ _Two , Τ_Three ... and gradually widen like
And each pole pitch τ₁ , Τ_Two , Τ_Three … In other words, in other words
UVW windings are wound in each coil unit 6,6,6 ...
Make the distance between each turned slot equal
Set to. In this case, the synchronization speed is as shown in FIG.
Increase step by step. The other one is the pole pitch τ,
3 (c) τ₁ , Τ_Two , Τ_Three ... gradually widen like
And the pole pitch τ₁ , Τ_Two , Τ_Three … Within
That is, even within each coil unit 6, 6, 6,.
Gradually increase the distance between each slot where the winding is wound
Go. In this case, the synchronization speed is smooth as shown in FIG.
To increase.

The primary winding 5 may be composed of a plurality of primary windings, and the pole pitch may be changed in each primary winding, and the pole pitch may be different between the primary windings.

As is apparent from the above equation (1), the synchronous speed can also be changed by arranging the pole pitch τ of the primary winding 5 at an equal pitch and changing the power supply frequency f. In this case, it is necessary to perform power control independently for each coil unit. Therefore, the UU winding, the VV winding, and the WW winding are not connected between the adjacent coil units 6, and each coil unit 6 is independently connected to the power supply. Then, the power supply frequency f is changed for each coil unit 6 of the primary winding 5 so that the power supply frequency f is lowered in the low-speed section Z1, and is gradually increased (or decelerated) during acceleration in the acceleration / deceleration section Z2. sometimes gradually lowered) at the time of acceleration gradually changed with the power frequency f from the power supply frequency f _L of the low speed section Z1 to the power frequency f _H of the high speed section Z3, power frequency f _H slow high speed section Z3 at the time of deceleration It has gradually changed to the power supply frequency f _L of the section Z1. In high speed section Z3, the power frequency f _H higher than the power supply frequency f _L of the low-speed section Z1. This makes it possible to make the moving speed of the pallets 1a, 1b, 1c... Substantially the same as the synchronous speed determined by the power supply frequency f of each coil unit 6 of the primary winding 5.

In the acceleration / deceleration zone Z2, the moving speed is changed to the power supply frequency f.
There are two methods for changing (in this case, increasing). One is to change the power supply frequency f to f ₁ , f in FIG.
_The power supply frequency is fixed in each coil unit 6 while gradually increasing the frequency as in ₂ , ₃ . in this case,
The synchronization speed gradually increases as shown in FIG.
The other is to change the power supply frequency f from f _L → f in FIG.
Each of the coil units 6, 6,..., ₁ , f ₁ → f ₂ .
Increment gradually by inverter control. In this case, the synchronization speed smoothly increases as shown in FIG.

Note that the pole pitch τ of the primary winding 5 is gradually changed, and the power supply frequency f of the primary winding 5 is changed.
Pallets 1a,
. May be driven.

Also, here, a single-sided linear motor in which the primary winding 5 of the primary stator is opposed to the lower surface of the metal plate 4 has been described as an example, but this is shown in FIG. It is needless to say that the same effect can be obtained by using a double-sided linear motor which is disposed on the primary windings 5A and 5B of the primary stator so as to oppose both side surfaces of the linear motor.

Embodiment 2 7 is a top view schematically showing the vicinity of an acceleration / deceleration section of a handrail device of a variable-speed passenger conveyor according to a second embodiment of the present invention, and FIG. 8 is a cross-sectional view taken along line BB of FIG. 9 (a), 9 (b) and 9 (c) show examples of changes in the pole pitch of the primary winding, FIG. 9 (a) is a schematic diagram thereof, and FIG. 9 (b) shows changes in the pole pitch in the acceleration / deceleration section Z2. FIG. 10C is a schematic winding diagram showing an example of the example, FIG. 10C is a schematic winding diagram showing another example of a change in the pole pitch in the acceleration / deceleration section Z2, and FIGS. 7A is a schematic diagram showing an example in which a power supply frequency is changed between coil units in an acceleration / deceleration section Z2 and a power supply frequency is fixed in each coil unit; FIG. FIG. 4B shows the electric power between the coil units in the acceleration / deceleration section Z2. It is a schematic diagram which shows the system which changed the power supply frequency by inverter control also in each coil unit while changing a frequency, and in each figure, the same code | symbol is attached | subjected to the same part as the thing of 1st Embodiment mentioned above. It is attached.

As is clear from the comparison between FIGS. 9 and 10 and FIGS. 3 and 5, the variable-speed passenger conveyor according to the second embodiment is provided in each of the aforementioned systems, that is, in the acceleration / deceleration zone Z2. The handrail is driven by using the driving principle of each method which is exactly the same as the principle of driving the pallet using the method of controlling the speed by changing the pole pitch τ or the method of changing the power supply frequency f. Things.

A plurality of handrail pieces 10a, 10 gripped by the passenger
b, 10c... and a pallet 1a, 1b, 1 on which a passenger rides
c ... are conveyed synchronously. Handrail pieces 10a, 10
, 10c... are arranged in series separated from each other in the line direction, and the traveling rails 1
The handrail pieces are connected to each other by a running roller 13, and each handrail piece is connected with an expansion joint as described with reference to FIG. In the low speed section Z1, the handrail piece 10
The traveling speed of the handrail pieces 10a, 10b, 10c,... is reduced by reducing the distance between the a, 10b, 10c,. In the high-speed section Z3, the handrail pieces 10a, 10
The traveling speed of the handrail pieces 10a, 10b, 10c... is increased by increasing the distance between the b, 10c. In the acceleration / deceleration section Z2, when the immediately preceding low-speed section Z1 is the entrance as shown in FIG. 7, by gradually increasing the mutual interval between the handrail pieces 10a, 10b, 10c... From the low-speed section Z1 to the high-speed section Z3, The running speed is gradually increasing.

Conversely, if the low speed zone Z1 is the exit, the acceleration / deceleration zone Z2 is changed from the high speed zone Z3 to the low speed zone Z2.
The traveling speed is gradually reduced by gradually narrowing the distance between the handrail pieces 10a, 10b, 10c.

On the lower surfaces of the handrail pieces 10a, 10b, 10c,..., A metal plate 14 serving as a secondary mover of the linear induction motor is fixed. A primary winding 15 which is a primary stator is disposed at a position where the handrail can pass through, and the handrail piece is propelled by the interaction between the metal plate 14 and the primary winding 15. Therefore, the synchronization speed of the handrail pieces 10a, 10b, 10c... Increases as the pole pitch τ increases, and decreases as the pole pitch τ decreases.

The primary winding 15 includes a plurality of coil units 1
6, in the low speed section Z1, the pole pitch τ is narrowed, and in the acceleration / deceleration section Z2, the pole pitch τ is gradually changed, for example, from the pole pitch τ _{L in the} low speed section Z1 to the pole pitch τ in the high speed section Z3. _Changed to _H. In the high-speed section Z3, the pole pitch τ _{H is changed} to the low-speed section Z.
It should be wider than one pole pitch τ _L. By changing the pole pitch τ of the primary winding 15 in this manner, the moving speed of the handrail pieces 10a, 10b, 10c... Can be made substantially the same as the synchronous speed determined by the coil pitch τ.

As described above, there are two methods for changing (increasing here) the moving speed by the pole pitch τ in the acceleration / deceleration zone Z2. ), Gradually widen as τ ₁ , τ ₂ , τ ₃ ... And each pole pitch τ ₁ , τ ₂ ,
τ ₃ , in other words, each coil unit 16, 16, 1
In 6..., The distance between the slots around which the UVW winding is wound is set to be equal. In this case, the synchronization speed gradually increases as shown in FIG.
The other is to set the pole pitch τ to τ ₁ , τ in FIG.
₂ , τ ₃ , etc., and at the same time, the UVW winding is wound within each of the pole pitches τ ₁ , τ ₂ , τ ₃ , ie, within each of the coil units 16, 16, 16,. Gradually increase the distance between each slot. In this case, the synchronization speed smoothly increases as shown in FIG.

It is to be noted that the primary winding 15 may be composed of a plurality of primary windings, and the pole pitch may be changed in each primary winding, and the pole pitch may be different between the primary windings. .

Also in this case, similarly to the pallet side, each coil unit 16 is independently connected to a power source, and the primary winding 1
5 are arranged at the same pitch, and the power supply frequency f
It is needless to say that changing the synchronization speed can also change the synchronization speed. That is, the power supply frequency f is changed for each coil unit 16 of the primary winding 15, the power supply frequency f is reduced in the low speed section Z1, and the acceleration / deceleration section Z2 is reduced.
Then, the power supply frequency f is gradually increased (or gradually lowered). During acceleration, the power supply frequency f is gradually increased from the power supply frequency f _L in the low-speed section Z1 to the power supply frequency f _{H in the} high-speed section Z3. , The power supply frequency f in the high-speed section Z3
Gradually lowered from the power supply frequency f _H to the power supply frequency f _L of the low-speed section Z1. In the high-speed section Z3, the power supply frequency f _H
Is set higher than the power supply frequency f _L in the low-speed section Z1. Thereby, the moving speed of the handrail pieces 10a, 10b, 10c.
The synchronizing speed determined by the power supply frequency f of each coil unit 16 of the primary winding 15 can be substantially the same.

In the acceleration / deceleration zone Z2, the moving speed is changed to the power supply frequency f.
As described above, there are two methods of changing (in this case, increasing) the power supply frequency f.
Are gradually increased like f ₁ , f ₂ , f ₃ ... In FIG. 10A, and the power supply frequency is fixed in each coil unit 16. In this case, the synchronization speed is as shown in FIG.
It gradually increases as shown in FIG. The other one is to gradually increase the power supply frequency f by inverter control in each of the coil units 16, 16,... As shown by f _L → f ₁ , f ₁ → f ₂ . In this case, the synchronization speed smoothly increases as shown in FIG.

In this case, similarly to the pallet side, the pole pitch τ of the primary winding 15 is gradually changed, and the power supply frequency f of the primary winding 15 is changed for each coil unit 16 of the primary winding 15 so that the handrail is moved. Pieces 10a, 10b, 10c ...
May be driven.

Also, here, as in the case of the pallet side, a single-sided linear motor in which the primary winding 15 of the primary stator is opposed to the lower surface of the metal plate 14 has been described as an example.
As shown in FIG. 11, the primary winding 15 of the primary stator is opposed to both side surfaces of the metal plate 14A.
It is needless to say that the same effect can be obtained even with the double-sided linear motors arranged at A and 15B, and further, as shown in FIGS. 12 and 13, the primary winding 15 or 15A, 1A.
Even if 5B is attached to the support 11, exactly the same effect can be obtained.

The variable-speed passenger conveyor of the present invention can be widely applied to a system in which each pallet or handrail circulates in a vertical plane or a system in which each pallet or handrail circulates in a plane.

In each of the above-described embodiments, the pallet and the handrail are driven based on the same driving principle. However, only one of the pallet and the handrail is used according to the present invention. A linear motor drive system may be used, and the other may be a conventional screw drive system.

[0044]

As described above, according to the present invention, the metal plate of the linear motor provided on the pallet and the primary winding of the linear motor provided in the acceleration / deceleration section for changing the moving speed of the pallet are provided. Line, and changes the pole pitch of the primary winding in accordance with the acceleration / deceleration, or adjusts the power supply frequency of the primary winding composed of a plurality of coil units for each coil unit in accordance with the acceleration / deceleration. As a result, the manufacturing and installation costs of the pallet drive unit can be reduced, and no noise is generated from the variable speed mechanism, so that passengers can be provided with a comfortable ride.

Further, according to the present invention, a metal plate of a linear motor provided on a handrail piece, and a primary winding of a linear motor installed in an acceleration / deceleration section for changing a moving speed of the handrail piece are provided. Since the pole pitch of the primary winding is changed in accordance with the acceleration / deceleration, or the power supply frequency of the primary winding composed of a plurality of coil units is adjusted for each coil unit in accordance with the acceleration / deceleration, the handrail is used. The manufacturing and installation costs of the drive unit can be reduced, and noise is not generated from the variable speed mechanism, so that a comfortable ride can be provided to passengers.

[Brief description of the drawings]

FIG. 1 is a top view schematically showing the vicinity of an acceleration / deceleration section of a variable-speed passenger conveyor according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a diagram illustrating an example of a change in a pole pitch of a primary winding of the variable-speed passenger conveyor according to the first embodiment.

FIG. 4 is a graph showing a relationship between a pole pitch and a synchronous speed of the variable-speed passenger conveyor according to the first embodiment.

FIG. 5 is a schematic diagram illustrating an example of a change in the power supply frequency of the primary winding of the variable-speed passenger conveyor according to the first embodiment.

FIG. 6 is a cross-sectional view showing a modification of the arrangement of the metal plates and the primary windings of the primary stator of the linear motor of the variable-speed passenger conveyor according to the first embodiment.

FIG. 7 is a top view schematically showing the vicinity of an acceleration / deceleration section of a handrail device of a variable-speed passenger conveyor according to a second embodiment of the present invention.

FIG. 8 is a sectional view taken along the line BB of FIG. 7;

FIG. 9 is a diagram showing an example of a change in a pole pitch of a primary winding of a variable-speed passenger conveyor according to a second embodiment.

FIG. 10 is a schematic diagram showing an example of a change in the power supply frequency of the primary winding of the variable-speed passenger conveyor according to the second embodiment.

FIG. 11 is a cross-sectional view showing a modification of the arrangement of the metal plate and the primary winding of the primary stator of the variable-speed passenger conveyor linear motor according to the second embodiment.

FIG. 12 is a cross-sectional view showing a modification of the arrangement of the metal plates and the primary windings of the primary stator of the variable-speed passenger conveyor linear motor according to the second embodiment.

FIG. 13 is a cross-sectional view showing a modification of the arrangement of the metal plate and the primary winding of the primary stator of the variable-speed passenger conveyor linear motor according to the second embodiment.

FIG. 14 is a front view of a pallet drive section of the variable-speed passenger conveyor of the first conventional example.

FIG. 15 is a front view of a moving handrail drive unit of a variable-speed passenger conveyor according to a second conventional example.

[Explanation of symbols]

1a, 1b, 1c Pallet 2, 12 Running rail 4, 4A, 14, 14A Metal plate 5, 5A, 5B, 15, 15A, 15B Primary winding 6, 16 Coil unit 10a, 10b, 10c Handrail piece τ, τ _L ~ Τ _H pole pitch f, f _L ~ f _H power supply frequency

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Ryuichi Okuno 1-2-1 Marunouchi, Chiyoda-ku, Tokyo F-term (reference) 3F321 AA07 AA08 BA01 BA06 CA32 CA41

Claims (4)

[Claims] 1. A variable-speed passenger conveyor that moves a plurality of pallets along a circulation path composed of endlessly continuous running rails and changes the distance of the adjacent pallets with respect to the traveling direction to adjust the moving speed. A metal plate of a linear motor provided on the pallet, and a primary winding of a linear motor installed in an acceleration / deceleration section for changing a moving speed of the pallet, wherein a pole pitch of the primary winding is adjusted. A variable-speed passenger conveyor characterized by varying the speed according to the speed. 2. A variable-speed passenger conveyor that moves a plurality of pallets along a circulation path composed of endlessly continuous traveling rails, and changes the distance of the adjacent pallets in the traveling direction to adjust the moving speed. A metal plate of a linear motor provided on the pallet, and a primary winding of a linear motor including a plurality of coil units installed in an acceleration / deceleration section for changing a moving speed of the pallet; A variable-speed passenger conveyor, wherein a power supply frequency of a line is adjusted for each coil unit according to acceleration / deceleration. 3. A plurality of handrail pieces for a passenger to hold,
In a variable-speed passenger conveyor that travels on a traveling rail provided in parallel with an endless passenger conveyor, a metal plate of a linear motor provided on the handrail and a moving speed of the handrail are changed. And a primary winding of a linear motor installed in an acceleration / deceleration section for changing the pole pitch of the primary winding in accordance with the acceleration / deceleration. 4. A plurality of handrail pieces for a passenger to grip,
In a handrail device of a variable-speed passenger conveyor that runs on a traveling rail provided in parallel with an endlessly formed passenger conveyor, a metal plate of a linear motor provided on the handrail piece and a moving speed of the handrail piece And a primary winding of a linear motor composed of a plurality of coil units installed in an acceleration / deceleration section for changing the power supply frequency. The power supply frequency of the primary winding is adjusted for each of the coil units according to the acceleration / deceleration. A variable speed passenger conveyor characterized by: