JP4098029B2 - Passenger conveyor equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a passenger conveyor device having a step chain and a handrail belt, and more particularly to a passenger conveyor capable of driving a handrail belt by obtaining driving power from the step chain.
[0002]
[Prior art]
As a conventional passenger conveyor device, as disclosed in Japanese Patent Laid-Open No. 2000-86135, the power from the step chain is transmitted to the handrail drive chain via the handrail drive sprocket and the second sprocket, and further by the handrail belt pressure contact drive device. What drives a handrail belt is known.
[0003]
Further, as shown in FIGS. 5 and 6, a conveyor apparatus is known in which a handrail driving sheave is provided instead of the second sprocket.
[0004]
As shown in FIGS. 5 and 6, a step chain 56 to which a step 55 is attached is disposed in the truss 51, and a front wheel 57 connected by a front wheel shaft 58 is incorporated in the step chain 56. Further, a rear wheel 59 is provided on the step 55, the front wheel 57 is guided by the front wheel guide rail 60, and the rear wheel 59 is guided by the rear wheel guide rail 61. A presser rail 62 is provided to prevent the front wheel from lifting. By the way, a handrail drive sprocket 70 is disposed between the forward and return step chains 56, and the handrail drive sprocket 70 is connected to the handrail drive sheave 71 via a connecting shaft 72. The connecting shaft 72 is supported by a bearing 73, and the bearing 73 is fixed by a base plate 74 attached in the truss 1. A handrail belt 75 is wound around the handrail driving sheave 71. The handrail belt 75 is pressed against the handrail driving sheave 71 by a pressing roller 76, and the handrail belt 75 is guided by a guide roller 77.
[0005]
When the passenger conveyor device is operated, the handrail drive sprocket 70 disposed between the forward and return step chains 56 rotates the handrail drive sheave 71 connected coaxially, thereby driving the handrail belt 75. .
[0006]
[Problems to be solved by the invention]
However, the above method has the following problems. For example, in the passenger conveyor device disclosed in Japanese Patent Laid-Open No. 2000-86135, the power obtained from the step chain is transmitted to the handrail belt pressure drive device by the handrail drive chain, so that supply of the chain, tension adjustment, etc. are required. These operations are poor in workability because the structure is in the deep part of the truss. In addition, since chain oil is used, the oil scatters and stains steps and handrails, and waste oil comes out, which is not good for the environment.
[0007]
5 and 6, the diameter of the handrail drive sheave 71 is made to correspond to the pitch circle diameter of the handrail drive sprocket 70 in order to match the movement speed of the step 55 and the movement speed of the handrail belt 75. Yes. In the conventional passenger conveyor device, when the depth of the truss 51 is 1 m, the diameter of the handrail driving sheave 71 is about 500 mm. When the handrail belt 71 is wound around the truss 51 and driven, the handrail belt 71 is severely bent. There is a concern that the life of the product may be reduced or damaged.
[0008]
The present invention has been made in consideration of such points, and an object of the present invention is to provide a passenger conveyor device that can prevent the lifespan and damage of the handrail belt.
[0009]
[Means for Solving the Problems]
The present invention includes a step chain to which a plurality of steps are attached;
A handrail drive sprocket that directly engages the step chain;
A handrail drive sheave coupled to the handrail drive sprocket and disposed coaxially with the handrail drive sprocket;
And a handrail belt wound around the outer circumference of the handrail drive sheave,
Between the handrail drive sheave and the handrail belt, an endless body having a circumference longer than the outer shape of the handrail drive sheave is interposed, and the handrail belt is driven by the endless body ,
A curved endless body guide rail is provided in the vicinity of the handrail driving sheave, and the endless body is guided by the curved endless body guide rail .
[0010]
The present invention is the passenger conveyor device, wherein the endless body is formed of an endless elastic body.
[0011]
The present invention is the passenger conveyor device, wherein the endless body is configured by connecting a plurality of links.
[0012]
The present invention is the conveyor device, wherein the endless body is guided in a substantially semicircular shape by a guide mechanism.
[0013]
In the present invention, the step chain has wheels guided by guide rails,
In the vicinity of the handrail drive sprocket, the width of the guide rail that contacts the wheel of the step chain is about half of the width of the wheel, and the remaining width of the wheel engages with the handrail drive sprocket. It is a conveyor device.
[0014]
In the present invention, the step chain has wheels guided by guide rails,
In the vicinity of the handrail drive sprocket, part of the guide rail is removed,
It is a conveyor device characterized in that various rollers for guiding a step chain are arranged in a portion where the guide rail is deleted.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
First Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0016]
1 and 2 are views showing a first embodiment of a passenger conveyor device according to the present invention.
[0017]
As shown in FIGS. 1 and 2, the passenger conveyor device 1 includes a truss 1 and left and right step chains 6 disposed in the truss 1 and having a plurality of steps 5 attached thereto.
[0018]
The step chain 6 has a link plate 6 a, and front wheels (wheels) 7 are incorporated in the left and right sides of the step chain 6, and the left and right front wheels 7 are connected by a front wheel shaft 8. Further, a rear wheel (wheel) 9 is attached to the rear side of each step 5.
[0019]
The front wheel 7 of the step chain 6 is guided by a front wheel guide rail 10, and the rear wheel 9 is guided by a rear wheel guide rail 11. Further, a presser rail 12 is disposed to prevent the front wheel 7 from being lifted.
[0020]
Meanwhile, a handrail drive sprocket 20 is disposed between the forward and return step chains 6 so as to mesh with the step chain 6. A handrail drive sheave 21 is concentrically connected to the handrail sprocket 20 via a connecting shaft 22, and the connecting shaft 22 is supported by a bearing 23. The bearing 23 is fixed by a base plate 24 mounted in the truss 1.
[0021]
A handrail belt 25 is wound around the outer periphery of the handrail driving sheave 21, and the handrail belt 25 is pressed against the handrail driving sheave 21 by a pressing roller 26. The handrail belt 25 is guided by a guide roller 27. Furthermore, between the handrail drive sheave 21 and the handrail belt 25, an endless body (annular body) 30 constituted by an endless elastic body and a plurality of links is disposed. The ring-shaped body 30 is guided by a ring-shaped body guide roller 31, and the ring-shaped body 30 is guided by a ring-shaped body guide rail (endless body guide rail) 32. A part of the front wheel guide rail 10 is a notch guide rail 10a that is cut by about half in the width direction.
[0022]
The notch guide rail 10 a is formed to prevent interference between the front wheel guide rail 10 and the handrail drive sprocket 20. Further, the section in which the handrail drive sprocket 20 obtains power from the step chain 6 is X.
[0023]
Next, the operation of the present embodiment having such a configuration will be described.
[0024]
First, when the passenger conveyor is operated, the handrail drive sprocket 20 disposed between the forward and return step chains 6 rotates, and the handrail drive sprocket 20 rotates the handrail drive sheave 21 provided coaxially via the connecting shaft 22. .
[0025]
In this case, half of the front wheel 7 of the step chain 6 is guided by the notch guide rail 10a in the width direction, and the handrail drive sprocket 20 is rotated by the other half. When the handrail drive sprocket 20 is rotated, the ring-shaped body 30 is guided and rotated by the ring-shaped body guide rail 32 and the handrail drive sheave 21, and the handrail belt 25 is driven with gentle bending along this. In this case, the ring-shaped body 30 is formed in a substantially semicircular shape by the ring-shaped body guide roller 31 and the ring-shaped body guide rail 32, and the circumference thereof is larger than that of the handrail drive sheave 21.
[0026]
As described above, according to the present embodiment, the handrail belt 25 can be driven while being gently bent, which can prevent the handrail belt 25 from being shortened in life or damaged. Further, when the ring-shaped body 30 is made of an elastic body, the ring-shaped body 30 can be driven without using oil, the step 5 and the handrail belt 25 are not soiled, and no waste oil is produced. No need for trouble. Furthermore, the tension of the ring-shaped body 30 can be adjusted by moving the ring-shaped body guide roller 31, and the workability of maintenance adjustment is also good.
[0027]
Second embodiment Next, a second embodiment of the present invention will be described with reference to Figs.
[0028]
In the second embodiment shown in FIGS. 3 and 4, the guide rail 10 and the presser rail 12 are partially removed in the section X, and the step chain 6 is provided in a portion where the guide rail 10 and the presser rail 12 are removed. Are provided with a step chain support roller 40 and a step chain presser roller 41, and other configurations are substantially the same as those of the first embodiment shown in FIGS.
[0029]
3 and 4, the same parts as those in FIGS. 1 and 2 are denoted by the same reference numerals, and detailed description thereof is omitted. In FIG. 3, the handrail drive sprocket 20, the connecting shaft 22, the ring-shaped body guide roller 31 and the ring-shaped body guide rail 32 are not shown for convenience.
[0030]
As shown in FIGS. 3 and 4, the guide rail 10 and the presser rail 12 are removed in the section X, and a plurality of step chain support rollers 40 that support the link plate 6 a of the step chain 6 are removed from the section X. A plurality of step chain pressing rollers 41 that press the link plate 6a of the step chain 6 from above are arranged. The step chain presser roller 41 is supported by a presser roller support frame 42, and the step chain support roller 40 and the presser roller support frame 42 are held by a step chain support base 43 disposed in the section X.
[0031]
Next, the operation of the present embodiment having such a configuration will be described. During operation of the passenger conveyor device, the handrail drive sprocket 20 meshes with the front wheel 7 of the step chain 6 to obtain power. In this case, the link plate 6 a of the step chain 6 is guided by the step chain support roller 40.
[0032]
During this time, the handrail drive sprocket 20 tries to push up the step chain 6 via the front wheel 7. However, the link plate 6a of the step chain 6 is pressed by the step chain pressing roller 41, and the movement path of the step chain 6 is uniform. Adjusted.
[0033]
Similarly, in the section X, the front wheel 7 provided on the step chain 6 is engaged with the teeth of the handrail drive sprocket 20 and is prevented from rotating. In this case, since the presser rail 12 and the front wheel guide rail 10 are removed in the section X, the front wheel 7 does not come into contact with the presser rail 12 and the notch guide rail 10a, and the rotation of the front wheel 7 is reliably suppressed. Can do. For this reason, compared with the case where the front wheel 7 is brought into contact with the presser rail 12 and the notch guide rail 10a, the front wheel 7 can be prevented from being damaged and the life of the front wheel 7 can be prevented from being deteriorated without causing torsional stress.
[0034]
According to the present embodiment, the link plate 6a of the step chain 6 is guided by the step chain support roller 40 and the step chain pressing roller 41, so that the step chain 6 can be prevented from being lifted, and the front wheel 7 can be prevented from being lifted. Torsional stress does not occur, and it is possible to prevent breakage and shortening of life.
[0035]
【The invention's effect】
As described above, according to the present invention, the handrail belt can be gently bent and driven, so that the lifespan and damage of the handrail belt can be prevented.
[Brief description of the drawings]
FIG. 1 is a side view showing a first embodiment of a passenger conveyor according to the present invention.
FIG. 2 is a cross-sectional view taken along line AA in FIG.
FIG. 3 is a side view showing a second embodiment of a passenger conveyor according to the present invention.
4 is a cross-sectional view taken along the line BB in FIG.
FIG. 5 is a side view showing a conventional passenger conveyor.
6 is a cross-sectional view taken along the line CC of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Truss 5 Step 6 Step chain 7 Front wheel 8 Front wheel shaft 9 Rear wheel 10 Front wheel guide rail 10a Notch guide rail 11 Rear wheel guide rail 12 Presser rail 20 Handrail drive sprocket 21 Handrail drive sheave 22 Connection shaft 23 Bearing 24 Base plate 25 Handrail Belt 26 Pressing roller 27 Guide roller 30 Ring-shaped body 31 Ring-shaped body guide roller 32 Ring-shaped body guide rail 40 Step chain support roller 41 Step chain press roller 42 Press roller support frame 43 Step chain support base

Claims (6)

A chain of steps with multiple steps attached;
A handrail drive sprocket that directly engages the step chain;
A handrail drive sheave coupled to the handrail drive sprocket and disposed coaxially with the handrail drive sprocket;
And a handrail belt wound around the outer circumference of the handrail drive sheave,
Between the handrail drive sheave and the handrail belt, an endless body having a circumference longer than the outer shape of the handrail drive sheave is interposed, and the handrail belt is driven by the endless body ,
A passenger conveyor apparatus characterized in that a curved endless body guide rail is provided in the vicinity of the handrail drive sheave, and the endless body is guided by the curved endless body guide rail .   The passenger conveyor apparatus according to claim 1, wherein the endless body is configured by an endless elastic body.   The passenger conveyor apparatus according to claim 1, wherein the endless body is configured by connecting a plurality of links.   The conveyor apparatus according to claim 1, wherein the endless body is guided in a substantially semicircular shape by a guide mechanism. The step chain has wheels guided by guide rails,
In the vicinity of the handrail drive sprocket, the width of the guide rail that contacts the wheel of the step chain is about half of the width of the wheel, and the remaining width of the wheel engages with the handrail drive sprocket. The conveyor apparatus of Claim 1 thru | or 4. The step chain has wheels guided by guide rails,
In the vicinity of the handrail drive sprocket, part of the guide rail is removed,
The conveyor apparatus according to any one of claims 1 to 4, wherein a number of rollers for guiding the step chain are arranged in a portion where the guide rail is deleted.

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