JPS63704Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to an improvement in a passenger conveyor system.

It has been proposed that the moving handrail of a passenger conveyor device is driven in a straight line by a rotating body. Such a passenger conveyor system will be explained with reference to FIGS. 1 and 2.

In the figure, 1 is the main frame of the passenger conveyor, 2 is the tread plate placed on this, 2a is the axis of the tread plate 2, and 3 is the tread plate 2.
The tread chain is arranged endlessly along the treadle, through which the shaft 2a is inserted, and the outer edge of the link 3a is provided with a rack 3b.

4 is a roller pivotally attached to the end of the shaft 2a, 5 is a rail provided on the main frame 1 and guides the roller 4, 6
is a gear pivotally mounted on the main frame 1 and engaged with the rack 3b via an idler 6a; 7 is a drive rotating body consisting of this gear and a drive roller integrally formed therewith; 8 is a flexible gear mainly made of rubber. With flexible moving handrails,
The rollers are arranged in an endless manner, and the inner side of the C-shaped cross section is in contact with the drive roller of the drive rotor 7.

Reference numeral 9 denotes a pressure roller pivotally mounted to the main frame 1 and presses the back surface of the C-shaped cross section of the moving handrail 8; 90 a drive mechanism comprising the driving rotary body 7, the pressure roller 9, etc.; 10;
1 is a guide body installed on the railing of the passenger conveyor to guide the moving handrail 8; 11 is a drive machine installed in the longitudinal middle of the main frame 1; 11a is a drive chain wheel of the drive machine 10 that engages with the tread chain 3; are doing.

That is, the drive chain 3 is driven by the drive machine 11 to move the footboard 2, and the gear 6 engaged with the drive chain 3 rotates the drive rotating body 7 integrally formed therewith. Frictional force is generated between the drive rotor 7 and the movable handrail 8 by the drive rotor 7 and the pressing roller 9, and the movable handrail 8 is driven and continuously arranged around the entire circumference of the main frame 1. Guide body 1
It is designed to move along 0.

However, even if the guide body 10 of the moving handrail 8 is made of smooth steel or plastic such as nylon,
The relative movement between them generates friction, and the guide body 10
Wear particles are generated and adhere to the moving handrail 8 and also to the driving rotor 7 of the moving handrail 8.
The frictional force generated between the moving handrail 8 and the driving rotor 7 is reduced, and the moving handrail 8 slips,
There was a problem in that the speed of the moving handrail 8 became slower than the speed of the footboard 2, which caused the hands of passengers holding onto the moving handrail 8 to be pulled back, creating a very dangerous situation.

In addition, especially in the case of a passenger conveyor installed outdoors, dust generated from the surrounding environment adheres to the inner surface of the moving handrail 8, reducing the frictional force as well as abrasion powder of the guide body 10, and causing the moving handrail 8 to There was a problem with slipping, reducing passenger safety.

This invention solves the above-mentioned drawbacks and prevents the slip of the moving handrail and speeds up the movement of the tread in the case where the moving handrail moves due to the frictional force between the moving handrails when they are pinched by a rotating body. The purpose of this invention is to provide a highly safe passenger conveyor system that can obtain a speed of the moving handrail that is synchronized with the speed of the handrail.

An embodiment of this invention will be described below with reference to FIGS. 3 and 4.

In the figure, the same reference numerals as those in FIGS. 1 and 2 indicate the same parts, and reference numeral 12 denotes a first gear which is disposed near the drive mechanism 90 and rotates by engaging with the rack 3b on the outer edge of the tread chain 3.
Gear 13 is a cleaning device, 13a is a rotary body having an outer ring which is a brush that is in contact with the inside of the C-shaped cross section of the handrail 8, and 13b is a second gear integrally constructed with the rotary body 13a. The intermediate gear 14 is engaged with the first gear 12 which rotates while being engaged with the gear 3b. An arm 15 pivotally supports the first gear 12, second gear 13b, and intermediate gear 14 and is fixed to the main frame 1. An arm 16 is fixed to the arm 15 and supports the relative movement of the moving handrail 8 and the rotating body 13a. This is a receiving plate that receives the dust that is thrown out and guides it to the outside of the moving handrail 8.

That is, the first gear 12 disposed near the drive mechanism 90 moves the tread chain 3 due to the movement of the tread chain 3.
The intermediate gear 14, which rotates by engaging with the rack 3b on the outer edge of the intermediate gear 14, which is further engaged with the first gear 12, and the intermediate gear 1
4 rotates, the second gear 13b is integrated with the second gear 13b, and the cross section C of the moving handrail 8 rotates.
Rotating body 1 whose outer ring has a brush that touches the inside of the character
3a rotates in the opposite direction to the moving direction of the handrail, expelling abrasion powder or dust from the guide body 10 on the inner surface of the movable handrail 8, and discharging the abrasion powder or dust from the receiving plate 16 fixed to the arm 15. are collected and discharged outside the moving handrail 8.

By removing the abrasion powder on the inner surface of the movable handrail 8 before the drive mechanism 90 and the movable handrail 8 contact each other in this way, the abrasion powder or dust adhering to the drive rotary body 7 can be removed. The inner surface of the movable handrail 8 is in close contact with the movable handrail 8, and sufficient frictional force can be obtained to drive the movable handrail 8 at a speed synchronized with the moving speed of the footboard 2.

As explained above, this invention is provided with a tread chain driven by a drive machine placed in the longitudinal middle of the main frame, and engages with the tread chain to rotate and drive the handrail to move in a straight line. The drive mechanism is installed at a location where the movable handrail is arranged with the opening of the C-shaped cross section facing upward, and the movable handrail is driven via a gear engaged with the tread chain. A cleaning device that rubs the inner surface of the movable handrail, and a receiving plate that is installed opposite to the brush-like rotating body of the cleaning device and guides expelled dust etc. from the C-shaped recess of the movable handrail to the outside. This removes dust and abrasion particles from the conveyor belt, prevents slipping of the moving handrail driven by the drive mechanism, and enables the moving handrail to be driven at a speed synchronized with the moving speed of the tread, realizing a highly safe passenger conveyor. It is something.

[Brief explanation of drawings]

Figure 1 is a conceptual side view of a conventional passenger conveyor system, Figure 2 is an enlarged cross-sectional view taken along the - line in Figure 1, and Figure 3 is an enlarged cross-sectional view taken along the line -
The figures show an embodiment of the passenger conveyor system according to this invention, and are an enlarged view of the main parts of FIG. 1, and FIG. 4 is an enlarged cross-sectional view taken along the line -- of FIG. 3. DESCRIPTION OF SYMBOLS 1... Main frame, 8... Moving handrail, 13... Cleaning device, 16... Receiving plate, 90... Drive mechanism. In addition, the same parts or corresponding parts in the figures are indicated by the same reference numerals.

Claims (1)

[Scope of utility model registration request] A large number of treads connected to a tread chain and circulated within the main frame; a handrail erected from the main frame; and a movable handrail having a C-shaped cross section arranged endlessly on the main frame; A C-shaped opening in the cross section of the moving handrail is arranged upward, and is provided on the main frame corresponding to the location where the moving handrail is arranged in a straight line, and is arranged on the surface and inner surface of the moving handrail, respectively. A drive mechanism that compresses and drives the movable handrail with a rotating body, and a gear that is provided on the main frame and rotates while engaging with the tread chain, rotates and slides on the inner surface of the C-shaped recess of the movable handrail. a cleaning device having a brush-like rotary body for scrubbing; and a cleaning device provided on the main frame, one side of which is disposed near the bottom of the C-shaped recess to form an inclined surface facing the cylindrical surface of the rotary body; and a receiving plate extending outside the C-shaped recess.