JPH11116170A - Handrail driving device for passenger conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a handrail driving device for passenger conveyor having a simple drive system. SOLUTION: A handrail driving device of a passenger conveyor is structured so that a handrail belt pressed to the drive rollers 3-6 by pressure roller is moved with rotation of the drive rollers 3-6, being characterized by that the drive rollers 3, 4, 5, 6 are driven by gear mechanisms 24a and 3a rotated by a transmission shaft 23 leading from a power source. Thus the device is embodied in a compact configuration and the maintenance costs can be suppressed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a handrail drive device for a passenger conveyor such as an escalator and a moving sidewalk.

[0002]

2. Description of the Related Art A handrail belt of a passenger conveyor such as an escalator or a moving sidewalk is moved by a pressing force between a driving roller and a pressing roller. There is a method in which the driving means of the driving roller is driven by a chain around.

For example, as a prior art, Japanese Patent Publication No. Sho 63-1
The invention disclosed in JP 3910 is known.

According to the invention, a chain from a drive source (motor) is wound around a drive wheel provided on a frame, and another chain is endlessly wound from the drive wheel via a plurality of drive rollers and a tension wheel. Has been turned around.

[0005]

However, the disclosed invention has a problem in that a space from a passenger conveyor having a low tapper cannot be secured because the chain from the driving source is hung around the driving wheel below the frame.

[0006] In the chain drive system, the chain elongates when used for a long period of time, and the tension of the chain is adjusted.
In addition, there is a problem that replacement is required and maintenance frequency is short.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to provide a device for driving a handrail of a passenger conveyor which is compact.

[0008]

An object of the present invention is to provide a handrail belt pressed against a driving roller by a pressing roller.
A handrail drive device for a passenger conveyor that is moved by the rotation of the drive roller, wherein the drive roller is driven by a gear mechanism rotated by a transmission shaft from a power source, wherein the handrail of the passenger conveyor is provided. Solved by the drive.

According to the above means, since the drive roller is driven by the gear mechanism, a simple drive system can be formed even with a passenger conveyor having a low tapper, and the number of failures is smaller than that of a chain and maintenance is easy.

[0010]

FIG. 1 is a side view for explaining an embodiment of a handrail drive device for a passenger conveyor according to the present invention, wherein 1 is a handrail belt, and 2 is a frame attached to a pedestal of the passenger conveyor. Reference numerals 3, 4, 5, and 6 denote driving rollers of the handrail belt 1.

Reference numerals 7, 8, 9 and 10 denote pressing rollers which sandwich the handrail belt 1 and are arranged opposite the driving rollers 3, 4, 5 and 6.

The pressure rollers 7, 8, 9, 10 are pivotally supported by brackets 7a, 8a, 9a, and 10a, and the respective brackets 7a, 8a, 9a, and 10a.
Rods 7b, 8b, 9b, 10b are integrally connected to the lower part of a, and an intermediate part thereof is fitted in guide bodies 7c, 8c, 9c, 10c fixed to the frame 2 so as to be vertically movable. Is equipped.

Numerals 11 and 12 denote cylinders of a hydraulic mechanism.
Pistons 15 and 16 fixed to the connecting bars 13 and 14 of 8c, 9c and 10c are fitted, and spring receiving portions 17 and 18 are fixed to the upper portions of the cylinders 11 and 12, respectively. The rods 7b,
The lower ends of 8b, 9b and 10b are fitted.

19, 20, 21, and 22 are springs,
The springs 19, 20, 21, and 22 are provided with the spring receiving portions 17,
A structure is provided between the rod 18 and the rods 7b, 8b, 9b, 10b to apply a pressing force to the pressure rollers 7, 8, 9, and 10.

When hydraulic pressure is applied to the upper chambers of the cylinders 11 and 12, the spring receiving portions 17 and 18
12 and the pressure rollers 7, 8, 9 and 10
And the pressing force of the springs 19, 20, 21 and 22 acts on the handrail belt 1.

When the hydraulic pressure in the upper chambers of the cylinders 11 and 12 is released, the spring receiving portions 17 and 18 are lowered together with the cylinders 11 and 12 due to the spring force and the weight of the pressure rollers. , 9 and 10 are also lowered and the springs 19, 20, 21 and 2 acting on the handrail belt 1 are also lowered.
2, the pressure decreases.

FIG. 2 is a plan view of FIG. 1, in which drive rollers 3, 4, 5 and 6 are arranged with the frame 2 as a boundary, and bevel gears 3a, 4a, 5a and 6a are coaxially mounted on the opposite side. The bevel gears 3a, 4a, 5a, 6a mesh with bevel gears 24a, 24b, 24c, 24d of a drive shaft 24 connected to a transmission shaft 23 from a motor (not shown) by a joint 23a. Therefore, the rotation of the transmission shaft 23 is
a, 24b, 24c, 24d, bevel gears 3a, 4
a, 5a, and 6a rotate, and the driving rollers 3, 4, 5, and 6 are driven.

FIG. 3 is a right side view of FIG. 1, wherein reference numeral 25 denotes a pedestal of the passenger conveyor, reference numeral 26 denotes a balustrade, and a bevel gear 24d of a drive shaft 24 meshes with a bevel gear 6a of a drive roller 6.

The drive shaft 24 and the drive rollers 3, 4, 5,
Although the drive transmission of No. 6 has been described as an example of meshing of bevel gears, the drive shaft may be a worm and the drive roller side may be a worm gear.

[0020]

As described above, the present invention eliminates the need for chains and sprockets, so that even a passenger conveyor having a low tapper can be installed, and space saving can be realized.

In addition, since the elongation does not occur unlike a chain, there is an effect that the maintenance frequency is reduced.

[Brief description of the drawings]

FIG. 1 is a side view illustrating an embodiment of a handrail drive device for a passenger conveyor according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a right side view of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Handrail belt 2 Frame 3 Drive roller 4 Drive roller 5 Drive roller 6 Drive roller 7 Pressure roller 8 Pressure roller 9 Pressure roller 10 Pressure roller 11 Cylinder 12 Cylinder 13 Connection bar 14 Connection bar 15 Piston 16 Piston 17 Spring support Part 18 Spring receiving part 19 Spring 20 Spring 21 Spring 22 Spring 23 Conduction shaft 24 Drive shaft 25 Mount 26 Railing

Claims (1)

[Claims] 1. A handrail drive device for a passenger conveyor for moving a handrail belt pressed by a pressure roller to a drive roller side by rotation of the drive roller, wherein the drive roller is driven by a transmission shaft from a power source. A handrail driving device for a passenger conveyor, wherein the device is driven by a rotating gear mechanism.