JPH09169483A - Handrail device for variable speed type passenger conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a handrail device for variable speed type passenger conveyor at a low cost with durability, which can secure the safety of passenger. SOLUTION: This handrail device is formed of a pair of guide rails 7, 8, which are arranged endless and formed wide in a low-speed zone and narrow in a high-speed zone, a lever 4 having rollers 5, 6 to be guided by the pair of guide rails 7, 8 in both ends thereof, a shaft 2 arranged so as to pass through the lever 4, a sliding roller 9 provided in the tip of the shaft 2 and for sliding with a driving belt, and a handrail piece 1a provided in the other end of the shaft 2. The handrail piece 1a is connected in universal, and used as a handrail device for variable speed type passenger conveyor, which is connected in endless.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handrail device for a variable speed passenger conveyor in which a moving speed of a pallet is changed between an entrance and an exit of a passenger conveyor such as a moving walkway or an escalator.

[0002]

2. Description of the Related Art A handrail device for a variable speed passenger conveyor in which the moving speed of a pallet changes between an entrance and an exit
It is known in the following published patents.

As a variable speed handrail system, Japanese Patent Laid-Open No.
The invention disclosed in Japanese Patent No. 26277 is a system in which a plurality of handrail devices having different speeds are independently arranged in series.

Further, as the structure of the variable speed handrail, the invention disclosed in Japanese Patent Application Laid-Open No. 55-11978 is a system in which they are overlapped with each other in the feed direction.
The invention disclosed in Japanese Patent Publication No. 7-98481 is a method of attaching a bellows-shaped cover.

As a drive mechanism for the handrail, the above-mentioned JP-A-57 is used.
The invention disclosed in Japanese Patent Publication No. 98481 is a system in which a link structure is driven by a dedicated chain.

[0006]

However, in the invention of Japanese Patent Laid-Open No. 50-26277, the handrail devices are independent of each other, and there is a problem that the structure is complicated and the cost is high. Has a problem that it is inconvenient to ride because the handrail is changed at each seam. Further, since the speeds of the tread and the handrail are not synchronized with each other, there is an inconvenience of having to carry the same even if they are held by the same handrail.

Further, as the structure of the variable speed handrail, the invention disclosed in Japanese Patent Laid-Open No. 55-11978 has a risk of fingers being pinched when the handrail unit is contracted.

Further, the invention disclosed in the above-mentioned JP-A-57-98481 as a handrail drive mechanism is
In order to achieve synchronization when the claws on the chain and the link shaft are engaged, the manufacturing precision of both is strictly required. However, in practice, when driving with this method in the central high speed range, it is difficult to make the degree of engagement between the claws of each chain and the link shaft uniform. In this case, the engaged links The transport load is concentrated on the shaft, which is a structurally unfavorable problem.

The present invention aims to solve the above-mentioned problems in the prior art.

[0010]

[Means for Solving the Problems] The first means for solving the above-mentioned problems is to provide a groove type drive belt disposed endlessly on the upper part of the balustrade, and a low speed zone provided on both sides of the drive belt. In the high-speed zone where the space is widened, a pair of guide rails having a narrower space than the above, a lever having rollers guided by the pair of guide rails at both ends, a shaft fixed through the lever, and a shaft of the shaft. It is composed of a sliding roller attached to the tip and slidingly contacting the side portion of the drive belt, and a handrail piece fixed to the other end of the shaft. The handrail pieces are universally connected and every other one of the shafts. It is a handrail device for a variable speed passenger conveyor that is fixedly attached to and connected endlessly.

According to the first means, the length of the handrail piece is regulated by the change of the distance between the guide rails, the distance between the axes is changed, and the handrail piece is expanded and contracted to provide a variable speed of the handrail. Be done. That is, in the low-speed zone of the entrance or exit, the guide rails have a wide interval, and the handrail piece is restricted to a single length. Therefore, when the lever is rotated, the handrail acts in the direction of contraction. To do. Further, in the middle high speed zone, the spacing between the guide rails is narrow and the handrail piece is restricted to a single length, so that when the lever is rotated, the handrail acts in the extension direction.

Further, since the sliding roller at the tip of the lever shaft is in sliding contact with the side portion of the drive belt, a moving force is applied to the handrail due to friction, and even if the handrail interval fluctuates in low speed and high speed zones. The moving roller moves and responds accurately.

A second means for solving the above-mentioned problems is that the drive belt is arranged separately in the low speed zone and the high speed zone, and the variable speed passenger conveyor according to the first means is characterized. Handrail device.

According to the second means, since the driving belts are arranged separately in the low speed zone and the high speed zone, the handrail is moved by a separate driving belt, so that the pulling force of the handrail does not increase. The durability of the handrail at a long distance is improved.

A third means for solving the above-mentioned problems is the above-mentioned first or second means, characterized in that the handrail is endlessly formed with a cover having a flexible shape or material. A handrail device for a variable speed passenger conveyor.

According to the third means, the handrail can be manufactured by integral molding with rubber or synthetic rubber, so that the manufacturing cost is low.

A fourth means for solving the above-mentioned problems is that the drive sources of the drive belt are provided independently at the entrance and the exit, respectively. A handrail device for a variable speed passenger conveyor according to any one of the means.

According to the fourth means, since it is not necessary to connect the drive belt wheels at the entrance and exit to each other by a drive system such as a chain, the cost is low when the transport section is long, and When the transport direction is reversed and the entrance and exit are interchanged, the drive side can be easily changed.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a partial sectional perspective view showing one side of a handrail device for a variable speed passenger conveyor according to the present invention,
FIG. 2 is a sectional view taken along line AA of FIG.

1 and 2, 1 is a handrail,
A plurality of handrail pieces 1a, 1b, 1c, 1d ... Are connected by a connecting portion 1 '. The connecting portion 1'is connected by a universal joint or the like so as to freely rotate up and down, left and right and endure a pulling force.

The handrail pieces 1a, 1b, 1c, 1d ...
Shafts 2 are fixed to every other lower part (Fig. 1 shows the handrail piece 1a).
(Only shown), and extends in the direction of the groove type drive belt 3, a lever 4 is integrally fixed to the shaft 2 in the middle of the shaft 2, and rollers 5 are provided at both ends of the lever 4. 6 is pivotally supported. Since the rollers 5 and 6 are guided by the guide rails 7 and 8, when the distance between the guide rails 7 and 8 is widened, the lever 4 is rotated and the shafts 2 are adjacent to each other and the adjacent handrail pieces 1c. Pull the shaft 2 (handrail pieces 1a, 1b
.. (because the length of .. is constant), the distance between the axes 2 changes in the direction of becoming narrower. (Details will be described later.)

A slide roller 9 is slidably in contact with both sides of the groove-shaped drive belt 3 at the lower part of the shaft 2, and the handrail 1
When the driving belt 3 is moved, the sliding roller 9 that is in contact with the driving belt 3 is pulled by a frictional force and moved by the movement of the driving belt 3, and the handrail piece 1a. To move. Further, when the distance between the shafts 2 changes, the sliding roller 9 that is in contact with the drive belt 3 overcomes the frictional force and moves in the groove of the drive belt 3.

Numerals 10 and 11 are guide rollers of the drive belt 3 and are pivotally supported in the frame 12. 13 is a balustrade.

FIG. 3 is a plan view of the variable speed passenger conveyor according to the present invention, and FIG. 4 is a side sectional view.

In FIG. 3 and FIG. 4, both sides L are the slowest zones where the entrance or exit is the slowest, the center H is the high-speed zone, and M is an increasing or gradually decreasing speed zone. , In the deceleration zone.

Reference numeral 1 is a handrail, and 14 is a pallet whose speed is variable by a separate means. In this embodiment, the handrail 1
The high-speed drive belt 3 is arranged in the high-speed zone H, which is high speed. As shown in FIG. 4, the high-speed drive belt 3 includes sprockets 18, 19 and 2 via a drive shaft 15, a transmission 16 and a drive shaft 17 from a motor (not shown).
0, 21 and wheels 22, 23 that rotate integrally with the sprockets 19, 21. 24 is
It is a chain that drives the sprocket 20.

Reference numeral 3'denotes a low speed drive belt, and the drive source is the drive shaft 15 through the transmission 16 and the wheel 2 as described above.
It is driven by driving 5. The other wheel 26 drives the other wheel 26a by a chain 27 from the wheel 25 'of the transmission 16 and is driven via the sprockets 26b and 26c.

Further, the low speed drive belt 3'is turned downward by the wheel 25a, and there is no drive belt in the acceleration / deceleration zone M, and the guide rails 7 and 8 shown in FIGS.
Are arranged all around.

When the distance between the wheels 25 and 26 is short, it may be formed endlessly only with the above-mentioned low speed drive belt 3 ', and when the drive belts are arranged separately for high speed and low speed. The durability against pulling of the handrail 1, the shaft 2 and the lever 4 can be improved, which is advantageous in a long distance section.

The means for constructing the drive system from one motor has been described above, but as another means, the wheel 2 is used.
If the distance between 5 and 26 is long, the wheel 26
It is also possible to arrange a separate motor on the side and perform synchronous operation with the motor (not shown) on the wheel 25 side. In this case, the chain 27 can be omitted, resulting in cost reduction. Further, if the motors are independently installed at both the entrance and the exit, the tension side of the drive belt can be always set to the passenger tread side when the moving direction is reversed.

FIG. 5 is a plan view of the guide rails 7 and 8 in FIGS. 1 and 2. The guide rails 7 and 8 are arranged in an endless manner on the entire circumference, and the spacing is wide in the low speed zone L. In the high speed zone H, the interval is narrow.

Therefore, in the low speed zone L, since the distance between the guide rails 7 and 8 is wide, the handrail pieces 1a, 1c of FIG.
Since the length of the handrail is constant, the lever 4 is rotated and the distance between the handrail pieces 1a, 1c ,.
As shown in the left part, the handrail 1 has a folded shape, which causes the handrail 1 to slow down.

In the high speed zone H, the distance between the guide rails 7 and 8 becomes narrow, so that the handrail pieces 1a and 1b.
Since the length of * is constant, the lever 4 is rotated, the distance between the shafts 2 of the handrail pieces 1a, 1c, ... becomes long, and the shape becomes fully extended as shown in the central portion of FIG. Speeding up of the handrail 1 occurs.

Further, the handrail pieces 1a, 1b, ... May be connected to flexible handrail pieces such as bellows in shape and rubber or synthetic rubber in terms of material.

When the handrail is made of rubber or the like, it can be manufactured by integral molding, so that mass production is possible and the cost can be reduced.

[0037]

As described above, according to the present invention, in a handrail attached to a variable-speed passenger conveyor, a variable-speed handrail is formed in which the entrance is slowed down, the middle is fast, and the exit is slowed down again. be able to.

Further, since the sliding roller at the tip of the handrail shaft slides in the groove of the drive belt, it is possible to follow the relative speed difference between the moving speed of the handrail shaft and the moving speed of the drive belt.

Further, since the present invention has a simple structure,
The cost is low, passengers do not have to change handrails, and there is no risk of fingers getting caught.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional perspective view showing one side of a handrail device for a variable speed passenger conveyor according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG. 3;

FIG. 3 is a plan view of a variable speed passenger conveyor according to the present invention.

FIG. 4 is a side sectional view of a variable speed passenger conveyor according to the present invention.

5 is a plan view of the guide rail of FIG.

[Explanation of symbols]

 1 Handrail 1a Handrail piece 1b Handrail piece 1c Handrail piece 1d Handrail piece 2 Axis 3 Drive belt 4 Lever 5 Roller 6 Roller 7 Guide rail 8 Guide rail 9 Sliding roller 10 Guide roller 11 Guide roller 12 Frame 13 Railing 14 Tread conveyor 15 Drive shaft 16 Transmission 17 Drive shaft 18 Sprockets 19 Sprockets 20 Sprockets 21 Sprockets 22 Wheels 23 Wheels 24 Chains 25 Wheels 26 Wheels 27 Chains

Claims (4)

[Claims] 1. A groove-type drive belt disposed endlessly on the upper part of the balustrade, and a pair of guide rails disposed on both sides of the drive belt and having a wide space in a low speed zone and a narrower space in the high speed zone. A lever having rollers which are guided by the pair of guide rails at both ends, a shaft which penetrates through the lever and is fixed, and a sliding roller which is attached to the tip of the shaft and slidably contacts the side portion of the drive belt. And a handrail piece fixed to the other end of the shaft, wherein the handrail pieces are universally connected, and every other hand is fixed to the shaft and endlessly connected to the variable speed passenger conveyor. Handrail device. 2. The handrail device for a variable speed passenger conveyor according to claim 1, wherein the drive belt is provided separately in a low speed zone and a high speed zone. 3. The handrail device for a variable speed passenger conveyor according to claim 1, wherein the handrail is formed by a cover having a flexible shape or material in an endless manner. 4. The variable speed passenger conveyor according to claim 1, wherein the driving source of the driving belt is provided at each of the entrance and the exit. Handrail device.