JPH1121056A - Variable speed type passenger conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the load on a tread and a link member by providing a main drive device of the tread in a constant speed area of an intermediate part of the carriage line and an auxiliary drive device of the tread at the tread elevation position of a reverse part of the return line. SOLUTION: An auxiliary drive device comprises chain sprockets 6, 7, and a drive chain 8 to wind the chain sprockets, and the power is transmitted to the chain sprocket 7 from a chain sprocket 4 in the high speed area through a chain 9. The chain sprockets 6, 7 are pivotably supported by shafts 6', 7', the power is transmitted from the chain sprocket 3 in the high speed area by the chain 9, the chain sprocket 7 is driven, and the chain sprocket 6 is driven by the drive chain 8. A set torque transmission mechanism 15 transmits the prescribed torque to the auxiliary drive device 5 through a chain 16 and a sprocket 17. The torque balance with the main drive device is achieved to smoothly carry the tread.

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 in which a moving speed of a pallet is changed between an entrance and an exit on a moving sidewalk or an escalator.

[0002]

2. Description of the Related Art Recently, many passenger conveyors for transporting passengers without walking have been installed at airports, train stations, tourist facilities, and the like.

The speed of the conventional passenger conveyor is generally constant at a constant speed from the entrance to the exit. The gates and exits are designed to be safe for passengers
The speed must be about 40 m / min or less, and the speed is constant at this speed from the entrance to the exit.

[0004] However, with regard to passenger conveyors installed for use in urban transportation and the like, long-distance types have emerged, and there is a strong demand for speeding up the transport speed in the middle.

[0005] Therefore, the speed at the entrance is gradually increased while the speed is gradually increased toward the exit while gradually accelerating, and the speed is gradually reduced toward the exit to make the speed at the entrance equal to the safety at the entrance. There has been proposed a variable-speed passenger conveyor that has ensured performance.

[0006] Japanese Patent Application Laid-Open No. 50-59981 (hereinafter referred to as "prior art 1") and Japanese Patent Application Laid-Open No. Sho 50-7807 disclose the disclosed techniques for forming the variable speed state of the variable speed passenger conveyor.
No. 8 (hereinafter referred to as prior art 2) and Japanese Patent Application Laid-Open No.
No. 203678 (hereinafter referred to as prior art 3) is disclosed.

In the prior art 1, the end of an X-shaped link connected to a tread is guided by a guide rail having a variable width, so that the opening angle of the link is changed. Is changed to form a variable speed state.

Further, in the prior art 2, the degree of overlap of the treads is changed by changing the interval of the guide rails in the height direction, so that the speed is variable.

Further, in the prior art 3, the links connected to the pallet are arranged in a V-shape in the height direction, and the distance between the guide rails on which one end of the link is guided is changed in the height direction. The opening angle of the link is changed to change the interval between the treads to make the speed variable.

The driving method is the same as that of the prior arts 1, 2, and 3 described above.
In each case, a method in which each tread is driven by a belt or a chain in a high-speed, constant-speed region in the middle portion is adopted. Is transmitted).

[0011]

However, the driving methods according to the above-mentioned prior arts 1, 2, and 3 require a large traction force of the tread to ascend the reversing portion. That is, the power of the tread to rise on the reversing part depends on the drive unit in the high-speed area, and a traction force for pulling up the tread on the reversing part is required. The members need to have sufficient strength.

In the reversing portion, the roller of the tread or the link member is pressed with a large force toward the center of the arc, and the frictional resistance with the rail increases in proportion thereto.

The increase in the frictional resistance leads to an increase in the transport resistance, and a load acts on the link member in addition to the traction force.

In addition, since the link at the entrance / exit portion is in a low-speed region, the link is dubbed and the transmission efficiency is poor. In the reversing portion, it is expected that smooth passage is not easy. And the frictional resistance at the reversing part makes it more difficult for the tread to pass through the reversing part, and in some cases, the passage may become difficult.

[0015]

A first means of solving the above-mentioned problem is to connect adjacent treads with links arranged in a rhombus shape and to connect rollers provided at both ends of the links with a variable distance. In a variable-speed passenger conveyor that runs along the guide rails of the book and changes the distance between the treads by changing the link of the diamond-shaped arrangement according to the change in the distance between the guide rails, the link is provided in a constant speed area in the middle of the transport line. A variable speed passenger conveyor comprising a main drive device for a tread plate and an auxiliary drive device for a tread plate provided at a position where the tread plate is raised in a return line reversing section.

A second means for solving the above-mentioned problem is that the auxiliary driving device is installed below the reversing portion where the tread rises,
The auxiliary driving device includes a driving chain and a metal member arranged at an interval in the driving chain, and the metal member is engaged with an engagement metal fitting of the tread plate to perform auxiliary driving of the tread plate. The variable-speed passenger conveyor according to the first means.

A third means for solving the above-mentioned problems is that the auxiliary drive device is driven by the power of the main drive device or by a single power, and the variable-speed passenger according to the first means or the second means is provided. Conveyor.

A fourth means for solving the above-mentioned problems is a variable-speed passenger conveyor according to the first means or the third means, wherein the auxiliary driving device is driven via a set torque transmitting device. .

According to the first, second, and third means, at least the driving force of the self-weight of the tread plate and the link member in the reversing section can be applied by the auxiliary driving device. At the same time that the tension can be kept low, the power of the main drive unit on the high-speed area side is also reduced, and the load acting on the link members, transport rollers, and link rollers can be significantly reduced. There is no.

Further, the pressing force of the tread plate and the link roller against the rail at the reversing portion is significantly reduced, so that the passage of the link member is facilitated.

Further, according to the fourth means, by providing the set torque transmitting mechanism in the auxiliary drive device, a constant torque balance with the main drive device is achieved, and the conveyance is performed smoothly.

[0022]

FIG. 1 is a side view showing a drive system of a variable-speed passenger conveyor according to the present invention.

In FIG. 1, reference numeral 1 denotes a traveling rail of a tread plate (not shown) arranged in a loop on a conveyor line. A is a transport section for transporting passengers, S1 is a low-speed area of the entrance, S2 is an acceleration area, S3 is a high-speed area, S4 is a deceleration area near the exit, S5 is a low-speed area including the exit, and S6 is a low-speed area including the exit. This is a low-speed region of the reversing section where the tread plate descends.

B is a return section consisting of a low speed area S7, an acceleration area S8, a high speed area S9, and a deceleration area S10.
Is a low-speed region where the auxiliary drive device of the present invention is installed,
S12 is a reversal section where the tread rises and is a low-speed region.

Reference numeral 2 denotes a driving chain of a main driving device for applying a driving force to the tread in the high speed region S3. Reference numerals 3 and 4 denote chain sprockets. The driving chain 2 is wound around the chain sprockets 3 and 4. . 3a, 3b, 4
Reference numerals a and 4b denote auxiliary chain sprockets, which are provided to smoothly engage the engaging metal fittings with the tread plate.

As the main driving force, a driving shaft is connected to one of the chain sprockets 3 and 4, or a driving force in the directions of arrows a and b is transmitted to the driving chain 2 by a power transmission means from the other.

In the present invention, an auxiliary driving device 5 is further provided below the reversing portion S12 on the stepped-up side of the return section B.
The auxiliary driving device 5 is composed of chain sprockets 6 and 7 and a driving chain 8 that winds the chain sprockets 6 and 7, and power is transmitted to the chain sprocket 7 from the chain sprocket 3 in the high-speed region via the chain 9. You. The power to the auxiliary drive device 5 may be transmitted independently by providing a separate motor.

FIG. 2 is a bottom view showing an example of a variable speed forming method according to the present invention, wherein reference numeral 1 denotes a traveling rail, and 10 denotes a plurality of treads continuously provided on a transport line A and a return line. . At the bottom of the tread plate 10, a link 11 is arranged in a rhombus shape.
The guide roller 12 has a structure in which a spline shaft 13 attached in the width direction of 0 is slid.
The vehicle travels along two guide rails 14 whose interval changes in the transport direction while being regulated.

The illustrated state shows the acceleration region S2 or S3 in FIG. 1, that is, when the tread plate 10 is conveyed in the direction of the arrow, the distance between the guide rails 14 becomes gradually narrower. The guide roller 12 is moved toward the inside of the tread plate 10, the rhombus-shaped link 11 changes its shape, and the interval between the tread plates becomes longer, thereby forming a high-speed state.

In the deceleration region, conversely, the interval between the narrowed guide rails 14 is increased, and the interval between the treads 10 is reduced, so that the vehicle is in a deceleration state.

FIG. 3 is a partially enlarged side view showing an example of the main driving device of the tread in the high-speed area S1 of the present invention.

In FIG. 3, reference numeral 10 denotes a tread plate.
The hardware 2 of the drive chain 2 wound around the chain sprocket 3 in the recess 10b provided at the end of the engagement fitting 10a
a sequentially engages from below to move the tread plate 10 in the transport direction. Note that reference numeral 10c denotes a running wheel of the tread plate 10,
d is an overhanging comb tooth pivotally attached to the tip of the tread plate 10,
The bridge tread is formed when the interval between the treads 10 is widened.

It should be noted that only one tread is shown.
The high speed zone S1 in the return section is upside down.

FIG. 4 is an enlarged side view of the drive mechanism of the auxiliary drive device of the variable speed passenger conveyor according to the present invention, and is an enlarged view of a portion C in FIG.

The reversing portion S where the tread 10 in the return section B rises.
A drive chain 8 having a metal piece 8a is wound around a chain sprocket 7 provided at a lower portion of the wheel 4 and rotates.

Reference numeral 10 denotes a tread plate, on which an engagement hardware 10a is provided. The hardware 8a of the drive chain 8 hooks the recess 10b of the engagement hardware 10a to drive the tread plate 10.

FIG. 5 is a plan view of an auxiliary driving device according to the present invention. In FIG. 5, the chain sprocket 6
7 is supported by shafts 6 'and 7', and the high-speed regions S3 and S
Power is transmitted by the chain 9 from the chain sprocket 3 of No. 9 to drive the chain sprocket 7, and the chain sprocket 6 is driven by the drive chain 8.

Reference numeral 15 denotes a set torque transmitting mechanism, which applies a constant torque to the auxiliary drive unit 5 by the chain 16 and the sprocket 1.
7 to be transmitted. This set torque transmission mechanism 15
Thus, torque balance with the main drive device is achieved, and smooth transport of the tread is performed.

[0039]

According to the auxiliary driving device of the present invention, the load acting on the tread and the link member can be reduced, so that it is not necessary to employ a high-strength member, so that the manufacturing cost can be greatly reduced. Can be.

Further, the passage of the treads and link members in the reversing section is greatly improved, and the reliability of the variable-speed passenger conveyor on the device is improved.

[Brief description of the drawings]

FIG. 1 is a side view showing a main drive device and an auxiliary drive device of a variable-speed passenger conveyor according to the present invention.

FIG. 2 is a bottom view showing an example of a variable speed forming method according to the present invention.

FIG. 3 is a partially enlarged side view showing an example of a main driving device for a tread in the high-speed area S1 of the present invention.

FIG. 4 is a side view of the auxiliary driving device of the present invention, and is an enlarged view of a portion C in FIG. 1;

FIG. 5 is a plan view of an auxiliary driving device according to the present invention.

[Explanation of symbols]

 A transport section for transporting passengers S1 low-speed area at the entrance S2 acceleration area S3 high-speed area S4 deceleration area near the exit S5 low-speed area including the exit S6 low-speed area of the reversing section where the tread descends B return section S7 low-speed area S8 Acceleration area S9 High-speed area S10 Deceleration area S11 Low-speed area where auxiliary driving device of the present invention is installed S12 Low-speed area at reversal part where treadle rises 1 Running rail 2 Drive chain 3 Chain sprocket 3a Auxiliary chain sprocket 3b Auxiliary chain sprocket 4 Chain Sprocket 4a Auxiliary chain sprocket 4b Auxiliary chain sprocket 5 Auxiliary drive mechanism of the present invention 6 Chain sprocket 7 Chain sprocket 8 Drive chain 8a Hardware 9 Chain 10 Tread plate 10a Engagement fitting 10b Recess 10c of engagement fitting Shi teeth 11 Link 12 Guide roller 13 spline shaft 14 the guide rail 15 set torque transmission device 16 chain 17 sprocket

Claims (4)

[Claims] 1. Adjacent treads are connected to each other by a diamond-shaped link, and rollers provided at both ends of the link are run along two guide rails having a variable interval. In the variable-speed passenger conveyor that changes the interval between the treads by changing the interval between the guide rails, the main drive device of the tread provided in the constant speed area in the middle of the transport line and the tread up position of the return line inversion section A variable-speed passenger conveyor, comprising an auxiliary driving device for a tread provided. 2. The auxiliary driving device is installed below the reversing part where the tread rises, and the auxiliary driving device includes a driving chain;
The variable-speed passenger according to claim 1, wherein the driving chain is made up of hardware arranged at intervals, and the hardware is engaged with an engagement fitting of the tread to perform auxiliary driving of the tread. Conveyor. 3. The auxiliary drive device according to claim 1, wherein the auxiliary drive device is driven by a power of the main drive device or a single power.
A variable-speed passenger conveyor according to item 1. 4. The variable-speed passenger conveyor according to claim 1, wherein the auxiliary drive device is driven via a set torque transmission device.