WO2007077938A1

WO2007077938A1 - Passenger conveyor

Info

Publication number: WO2007077938A1
Application number: PCT/JP2006/326286
Authority: WO
Inventors: Yoshinobu Ishikawa; Yoshio Ogimura; Hitoshi Kawamoto; Shin Murakami; Takayuki Kikuchi; Kenzo Tonoki; Taihei Koyama
Original assignee: Toshiba Elevator Kabushiki Kaisha
Priority date: 2006-01-04
Filing date: 2006-12-28
Publication date: 2007-07-12
Also published as: CN101351397A; CN101351397B; JP5147179B2; JP2007182273A

Abstract

A passenger conveyor where sliding noise and rolling noise are suppressed from occurring when handrail belts (5) are moved in a circulating manner by using drive belts (6). The passenger conveyor has a pair of balustrades (4) placed on both sides of treads (2) endlessly connected and moved in a circulating manner, handrail belts (5) passed over the balustrades (4) and moved in a circulating manner, drive belts (6) moved in a circulating manner in the same direction as the handrail belts (5) while in contact with the inner peripheral surfaces (5b) of the handrail belts (5) and transmitting drive power to the handrail belts (5), drive ring bodies (20) rotated while being in contact with those surfaces of the drive belts (6) which are in contact with the handrail belts (5), and a drive belt drive mechanism (7) having pressing bodies (21) that are arranged at positions placing a drive belt (6) between each pressing body (21) and each drive ring body (20) and drive the drive belt (6).

Description

Specification

Passenger conveyor

Technical field

TECHNICAL FIELD [0001] The present invention relates to passenger conveyors such as escalators and moving sidewalks, and more particularly to a passenger conveyor that can improve the driving performance of a handrail belt.

Background art

Conventionally, a handrail belt drive mechanism having a drive roller and a pressure roller has been used as a mechanism for circulating and moving a handrail belt in a passenger conveyor. The driving roller and the pressure roller are arranged at positions where the handrail belt is sandwiched from both sides, and the handrail belt pressed against the pressure roller is pressed against the driving roller. The driving roller is driven to rotate while the handrail belt is pressed against the driving roller, whereby the driving roller force is transmitted to the handrail belt, and the handrail belt is circulated and moved by the transmitted driving force.

[0003] Further, as described in Japanese Patent Application Publication No. 2004-269155, a passenger provided with a drive belt that contacts the inner peripheral surface of the handrail belt and circulates in the same direction as the handrail belt. Conveyors are known. According to this passenger conveyor, the drive belt is circulated and moved, and the handrail belt is circulated and moved by the frictional force at the contact portion between the drive belt and the handrail belt. The drive belt and handrail belt circulate and move together in an overlapping state.

[0004] In the passenger conveyor described in the above publication, as a mechanism for circulating and driving the drive belt, a mechanism for holding the drive belt between the drive roller and the pressure roller is used. The driving belt is pressed against the driving roller by the pressure roller, and the driving belt is rotated, whereby the driving belt circulates and moves.

[0005] According to the passenger conveyor described in the above publication, the handrail belt is not sandwiched between the driving roller and the caloric pressure roller. Therefore, when the handrail belt is sandwiched between the driving roller and the pressure roller, The indentation that occurs is not left on the handrail belt, and the appearance of the handrail belt can be maintained in a good state.

[0006] In addition, transmission of the driving force to the handrail belt is performed at a surface contact portion with the drive belt, and the handrail is Since the contact area between the belt and the drive belt can be secured sufficiently, even if the length of the passenger conveyor is long and the length of the handrail belt is long, the transmission of drive power to the handrail belt is stable. Thus, the handrail belt can be circulated and moved smoothly.

Disclosure of the invention

[0007] However, in the passenger conveyor described in the above publication, the following points are not considered.

[0008] The drive roller for transmitting the drive force for circulating the drive belt to the drive belt is in contact with the surface (the inner peripheral surface of the drive belt) without contacting the handrail belt in the drive belt. For this reason, the surface of the drive belt that does not come into contact with the handrail belt (the inner peripheral surface of the drive belt) is designed to improve the transmission performance of the drive force to the drive belt at the contact point with the drive roller. It is considered to have a large coefficient.

[0009] The inner peripheral surface of the drive belt that is provided with canvas and contacts the drive roller moves while contacting the guide rail provided on the peripheral edge of the railing of the passenger conveyor, except for the contact point with the drive roller. In the folded region of the drive belt, it contacts the guide roller. For this reason, sliding noise is generated when the inner peripheral surface of the drive belt applied with the canvas contacts the guide rail, and the inner peripheral surface of the drive belt applied with the canvas contacts the guide roller. The rolling noise is generated. Furthermore, if there is a joint in the guide rail and there is a step in the joint, the sliding noise generated by the contact with the inner peripheral surface with the canvas increases even if the step is slight. .

[0010] The present invention has been made to solve such a problem, and its purpose is to suppress the generation of sliding noise and rolling noise when the handrail belt is circulated and moved using a driving belt. It is to provide a passenger conveyor that can.

[0011] A first feature according to the embodiment of the present invention is that, in a passenger conveyor, a pair of balustrades arranged on both sides of a plurality of stepped portions that are connected endlessly and can be circulated and wound around the balustrade A handrail belt that is hung and circulated, a drive belt that contacts the inner peripheral surface of the handrail belt, circulates and moves in the same direction as the handrail belt, and transmits a driving force to the handrail belt; and the drive In contact with the surface of the belt that contacts the handrail belt A drive wheel drive mechanism that has a drive wheel body that is driven to rotate, and a pressure body that is disposed at a position sandwiching the drive belt by the drive wheel body, and that drives the drive belt. It is.

[0012] According to the present invention, the surface of the drive belt that does not contact the handrail belt can be made a smooth surface, and the generation of sliding noise and rolling noise when the drive belt circulates can be suppressed. can do.

Brief Description of Drawings

FIG. 1 is a side view showing an overall configuration of an escalator according to a first embodiment of the present invention.

FIG. 2 is a side view showing a drive belt drive mechanism.

FIG. 3 is a perspective view showing a section of the AA line cross section in FIG. 1.

FIG. 4 is a perspective view showing a drive belt drive mechanism in an escalator according to a second embodiment of the present invention.

FIG. 5 is a side view showing a drive belt drive mechanism in an escalator according to a third embodiment of the present invention.

FIG. 6 is a side view showing a mounting structure of a cleaning device in an escalator according to a fourth embodiment of the present invention.

FIG. 7 is a side view showing a mounting structure of a cleaning device in an escalator according to a fifth embodiment of the present invention.

FIG. 8 is a side view showing structures of a slip detection mechanism and a runaway prevention mechanism in an escalator according to a sixth embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0015] (First embodiment)

As shown in FIG. 1, an escalator which is a passenger conveyor according to the first embodiment of the present invention is connected endlessly with a truss 1 installed between a lower floor and an upper floor of a building. A step 2 that is a plurality of steps that circulate and move, a step drive mechanism 3 that is a step drive mechanism that circulates the steps 2, a pair of balustrades 4 arranged on the side of the step 2, and a balustrade Four It has a handrail belt 5 that wraps around and circulates. Further, the escalator contacts the inner peripheral surface 5b of the handrail belt 5 and circulates and moves in the same direction as the handrail belt 5, and drives the drive belt 6 to transmit the driving force to the handrail belt 5. Drive belt drive mechanism 7.

The plurality of steps 2 are connected endlessly by being attached to the step chain 8.

[0017] The step drive mechanism 3 includes a step sprocket 9a disposed below the boarding board at the entrance on the upper floor, a step sprocket 9b disposed below the board at the entrance on the lower floor, and a step sprocket. And an electric motor 10 for rotating the bracket 9a. A step chain 8 is stretched between the step sprocket 9a and the step sprocket 9b, and when the electric motor 10 is driven, the step sprocket 9a is rotationally driven. When the step sprocket 9a is driven to rotate, the step chain 8 circulates between the step sprocket 9a and the step sprocket 9b, and the step 2 attached to the step chain 8 also circulates and moves together.

[0018] Two timing pulleys, a first timing pulley 12 and a second timing pulley 13, are connected to the rotating shaft 11 of the step sprocket 9a. A timing belt 15 is stretched between the first timing pulley 12 and the timing pulley 14 provided in the electric motor 10. The timing belt 17 is stretched between the second timing pulley 13 and the timing pulley 16 provided to transmit the driving force to the driving belt drive mechanism 7.

[0019] In the above description, the force pulley and the chain may be configured as the configuration of the timing pulley 16 and the timing belt 17.

[0020] The pair of balustrades 4 are arranged on both sides of the step 2 that stands on the truss 1 and faces each other in parallel and circulates. A guide rail 18 and a guide roller 19 are provided on the periphery of the balustrade 4 to guide the drive belt 6 and the handrail belt 5 that circulate and move. The guide roller 19 is provided at a position where the drive belt 6 and the handrail belt 5 which circulate and move on the upper floor side and the lower floor side are folded back.

The handrail belt 5 is a belt having a C-shaped cross section, and is disposed along a guide rail 18 provided on the balustrade 4. The outer peripheral surface 5a of the handrail belt 5 is a part where the user of the escalator applies, and the handrail belt 5 circulates at the same speed in synchronization with the step 2. The

[0022] The drive belt 6 is disposed between the guide rail 18 and the handrail belt 5, and the outer peripheral surface 6a which is one surface is brought into contact with the inner peripheral surface 5b of the handrail belt 5, and the inner surface which is the other surface. The surface 6b is in contact with the guide rail 18 and the guide roller 19. The drive belt 6 and the handrail belt 5 need not be in contact with each other in the entire area in the longitudinal direction of the handrail belt 5, but may be in contact with at least the area in which the escalator user puts the hand on the handrail belt 5. . Further, it is necessary to provide a non-contact portion between the handrail belt 5 and the drive belt 6 so as to be non-contact in order to provide the drive belt drive mechanism 7. This non-contact portion is provided in an area in the truss 1 that cannot be seen from the outside.

The drive belt 6 is driven by the drive belt drive mechanism 7 to circulate and transmit a driving force to the handrail belt 5 in a region where the drive belt 6 is in contact with the handrail belt 5, and the drive belt 6 and the handrail belt 5 are synchronized. Circulate at approximately the same speed. Therefore, the surface of the drive belt 6 that contacts the handrail belt 5 (the outer peripheral surface 6a of the drive belt 6) and the surface of the handrail belt 5 that contacts the drive belt 6 (the inner peripheral surface 5b of the handrail belt 5) are both frictional. The surface is set with a large coefficient, for example, canvas.

FIG. 3 is a cross-sectional view taken along line AA in FIG. The inner peripheral surface 5b of the handrail belt 5 and the outer peripheral surface 6a of the drive belt 6 come into contact with each other.

As shown in FIG. 2, the drive belt drive mechanism 7 is a drive driven to rotate by bringing the outer peripheral surface into contact with the surface of the drive belt 6 that contacts the handrail belt 5 (the outer peripheral surface 6a of the drive belt 6). A plurality of driving rollers 20 that are annular members, and a plurality of pressurizing members that are arranged at positions sandwiching the driving belt 6 by the driving rollers 20 and press the outer peripheral surface against the inner peripheral surface 6b of the driving belt 6 With Roller 21. A panel 22 capable of adjusting the biasing force is attached to the pressure roller 21, and the pressure roller 21 presses the drive belt 6 toward the drive roller 20 by the biasing force of the panel 22.

[0026] The pressure roller 21 and the panel 22 are arranged inside the balustrade 4 and are arranged in a position where the outer force of the balustrade 4 can be reached by removing a part of the balustrade 4 called the inner reed. .

[0027] The outer peripheral surface 6a of the driving belt 6 that contacts the driving roller 20 is a surface that contacts the inner peripheral surface 5b of the handrail belt 5, and has a large friction coefficient. For this reason, the drive roller 20 Thus, when the roller contacts the outer peripheral surface 6a of the driving belt 6, the driving force from the driving roller 20 to the driving belt 6 can be transmitted satisfactorily. On the other hand, the inner peripheral surface 6b of the drive belt 6 that contacts the pressure roller 21 is a surface that contacts the guide rail 18 and the guide roller 19 and is smoother than the outer peripheral surface 6a that contacts the drive roller 20. Therefore, it is said that the frictional force is small.

[0028] A sprocket 20b is connected to the rotating shaft 20a of each drive roller 20, and a chain 27 is formed between the sprocket 20b, the sprocket 24 connected to the rotating shaft 23a of the gear 23, and the sprockets 25 and 26. Is over. A panel 26 a for applying tension to the chain 27 is attached to the sprocket 26. The gear 23 meshes with the gear 28, and the timing pulley 16 is connected to the rotating shaft 28 a of the gear 28.

[0029] When the electric motor 10 is driven, the driving force from the electric motor 10 is transmitted to the timing pulley 16 via the timing belt 15, the timing pulleys 12, 13, and the timing belt 17, and the timing pulley 16 and the gear 28 are connected to each other. Rotates together. As the gear 28 rotates, the gear 23 that mates with the gear 28 rotates together with the sprocket 24. The rotation of the sprocket 24 is transmitted to the sprocket 20b via the chain 27, and the driving roller 20 is rotated and driven integrally with the sprocket 20b. When the driving roller 20 is rotationally driven, the driving roller 20 comes into contact with the driving roller 20, and the driving force is transmitted to the driving belt 6 so that the driving belt 6 circulates.

In such a configuration, when the electric motor 10 is driven, the step drive mechanism 3 and the drive belt drive mechanism 7 are driven. When the step drive mechanism 3 is driven, the step 2 circulates and when the drive belt drive mechanism 7 is driven, the drive belt 6 circulates and moves. As the drive belt 6 circulates, the handrail belt 5 circulates and moves together with the drive belt 6. The step drive mechanism 3 and the drive belt drive mechanism 7 have the same speeds as the step 2 and the drive belt 6; the diameter of the timing pulleys 12, 13, 16; the number of teeth of the gears 23, 28; the number of teeth of the sprockets 24, 20b. Is set to cycle.

[0031] In the drive belt drive mechanism 7, the drive roller 20 that transmits the drive force to the drive belt 6 is in contact with the outer peripheral surface 6a of the drive belt 6 having a high friction coefficient. For this reason, the driving belt 20 and the driving roller 20 can transmit the driving force to the driving belt 6 well even when the driving roller 20 is less likely to slip at the contact portion. [0032] Further, in the contact portion between the drive belt 6 and the handrail belt 5, the outer peripheral surface 6a of the drive belt 6 and the inner peripheral surface 5b of the handrail belt 5 in contact with the outer peripheral surface 6a are both surfaces having a high friction coefficient. For example, the surface is covered with canvas. Furthermore, the drive belt 6 and the handrail belt 5 are in contact with each other over a wide area in the direction along the circulating movement direction. For this reason, it is possible to satisfactorily transmit the driving force from the driving belt 6 to the handrail belt 5 by bringing the outer peripheral surface 6a of the driving belt 6 into contact with the inner peripheral surface 5b of the handrail belt 5. The handrail belt 5 can be circulated and moved integrally without causing slippage at the contact portion.

[0033] On the other hand, the inner peripheral surface 6b of the drive belt 6 that contacts the pressure roller 21 is a smooth surface having a lower coefficient of friction than the outer peripheral surface 6a. The inner peripheral surface 6b contacts the guide rail 18 and the guide roller 19. Unlike the outer peripheral surface 6a, the inner peripheral surface 6b of the driving belt 6 does not have a function of transmitting the driving force to the handrail belt 5 via the frictional force, so there is no problem with the small frictional force. If the friction force is reduced by smoothing the surface of the inner peripheral surface 6b, the sliding sound generated when the inner peripheral surface 6b contacts the guide rail 18 and the inner peripheral surface 6b It is possible to reduce the rolling noise of the guide roller 19 that is generated when it contacts the 19. Further, even when the guide rail 18 has a joint, the inner peripheral surface 6b having a smooth surface can smoothly pass through the joint, so that the drive belt 6 passes through the joint of the guide rail 18. However, no loud sliding noise is generated.

[0034] Since the surface of the inner peripheral surface 6b of the drive belt 6 is formed smoothly, the frictional resistance force at the contact portion between the inner peripheral surface 6b of the drive belt 6 and the guide rail 18 or the guide roller 19 is obtained. Can be crushed. For this reason, the output of the electric motor 10 that drives the drive belt 6 can be kept low, and the power consumption can be reduced.

[0035] Since the pressure roller 21 and the panel 22 are arranged at a position that can be reached from the outside of the rail 4 by removing a part of the rail 4 called the inner reed, the biasing force of the panel 22 Adjustment can be performed easily, and driving force transmission to the driving belt 6 by the driving belt driving mechanism 7 can always be maintained in a good state.

[0036] (Second embodiment)

An escalator which is a passenger conveyor according to the second embodiment of the present invention is based on FIG. And explain. Note that, in the second embodiment and other embodiments described below, the same components as those of the embodiments described above are denoted by the same reference numerals, and redundant descriptions are omitted.

The escalator of the second embodiment is provided with a drive belt drive mechanism 30 instead of the drive belt drive mechanism 7 described in the first embodiment. The drive belt drive mechanism 30 includes a sprocket 31 that circulates and moves the step 2 by being driven in rotation with a step chain 8 to which a plurality of steps 2 are connected, and a gear that is connected to the rotating shaft 32 of the sprocket 31. 33, a gear 34 that meshes with the gear 33, a rotating shaft 35 to which the gear 34 is connected, a driving roller 36 that is a driving wheel connected to the rotating shaft 35, and a pair of pressure ports that are pressure members And 37.

[0038] The step chain 8 is arranged at a position guided by the guide rail 38, and a sprocket 31 is arranged between the forward side and the return side of the step chain 8 that circulates and moves. The sprocket 31 is engaged with the step chain 8 at two locations on the forward side and the return side of the step chain 8, and the guide rail 38 has notches 38a, 38b is formed. A part of the outer peripheral portion of the sprocket 31 also enters the guide rail 38 with these notched portions 38a and 38b, and is matched with the step chain 8.

The drive roller 36 is disposed at a position where the outer peripheral surface comes into contact with the outer peripheral surface 6 a of the drive belt 6. The pair of pressure rollers 37 are arranged on both sides of the drive roller 36 with a rotation center parallel to the drive roller 36, and the outer peripheral surface is brought into contact with the inner peripheral surface 6b of the drive belt 6 to press the drive belt 6 against the drive roller 36. It is arranged at the position to do. The pressure roller 37 is urged by a panel so as to press the driving belt 6 against the driving roller 36. This panel is configured similarly to the panel 22 provided for the pressure roller 21 in the first embodiment, or the panel 44 provided for the pressure roller 43 in the embodiment described later. To function.

In such a configuration, in the driving belt driving mechanism 30 in the second embodiment, the driving roller 36 that transmits the driving force to the driving belt 6 has a surface with a high friction coefficient in the driving belt 6. Is in contact with the outer peripheral surface 6a. Therefore, the drive belt 6 and the drive roller 36 are driven from the drive roller 36 to the drive belt 6 where slippage is unlikely to occur at the contact portion. Force transmission can be performed well.

[0041] (Third embodiment)

An escalator which is a passenger conveyor according to a third embodiment of the present invention will be described with reference to FIG.

The escalator of the third embodiment is provided with a drive belt drive mechanism 40 instead of the drive belt drive mechanism 7 described in the first embodiment. The drive belt drive mechanism 40 includes a gear 28 connected to the rotary shaft 28a, a gear 41 that meshes with the gear 28, a drive roller 42 that is a drive wheel connected to the rotary shaft 41a of the gear 41, and a driving roller 42. And a pair of pressure rollers 43 as pressure bodies.

The drive roller 42 is disposed at a position where the outer peripheral surface comes into contact with the outer peripheral surface 6 a of the drive belt 6. The pair of pressure rollers 43 are arranged on both sides of the drive roller 42 with a rotation center parallel to the drive roller 42, and the drive belt 6 becomes the drive roller 42 by bringing the outer peripheral surface into contact with the inner peripheral surface 6 b of the drive belt 6. It arrange | positions in the position to press. The pressure roller 43 is urged by a panel 44 in a direction to press the drive belt 6 against the drive roller 42.

In such a configuration, in the drive belt drive mechanism 40 in the third embodiment, the drive roller 42 that transmits the drive force to the drive belt 6 has a surface with a high friction coefficient in the drive belt 6. Is in contact with the outer peripheral surface 6a. For this reason, the driving belt 6 and the driving roller 42 can satisfactorily transmit the driving force from the driving roller 42 to the driving belt 6 where slippage hardly occurs at the contact portion.

In this embodiment as well, the inner peripheral surface 6b of the drive belt 6 (FIG. 5) is formed more smoothly than the outer peripheral surface 6a. For this reason, it is possible to reduce sliding noise generated by contact between the inner peripheral surface 6b and the guide rail 18, rolling noise generated by contact between the inner peripheral surface 6b and the guide roller 19, and the like.

[0046] (Fourth embodiment)

An escalator which is a passenger conveyor according to a fourth embodiment of the present invention will be described with reference to FIG.

The escalator according to the fourth embodiment is provided with a cleaning device 50 for cleaning the handrail belt 5. Between the handrail belt 5 and the drive belt 6, these handrail belts 5 and the drive belt There is provided a non-contact portion 51 that is separated from 6 to be non-contact. A drive belt drive mechanism 40 and a cleaning device 50 are provided in the region of the non-contact portion 51.

[0048] The cleaning device 50 includes a cleaning container 53 that stores the cleaning liquid 52, and a sponge roller 54 that wipes the cleaning liquid 52 attached to the handrail belt 5. By wiping the cleaning liquid 52 adhering to the handrail belt 5 with the sponge roller 54, the dirt adhering to the handrail belt 5 is also removed.

[0049] A plurality of sponge rollers 54 are provided at positions in contact with the outer peripheral surface 5a, the inner peripheral surface 5b, and the side surfaces of the handrail belt 5.

FIG. 6 shows the case where the sponge rollers 54 are provided on both sides of the cleaning container 53, but one spot on the side that contacts the handrail belt 5 immediately after being immersed in the cleaning liquid 52 is shown. It is also possible to leave the roller 54 and remove the other. It is effective to permanently install the sponge roller 54 on both sides of the cleaning container 53, considering that the escalator is moved up and down and switching the circulation movement direction of the handrail belt 5 with this switching. is there.

[0051] Supplying the cleaning liquid 52 into the cleaning container 53 and cleaning the cleaning container 53 are performed at the set maintenance timing.

In such a configuration, in an escalator that drives the handrail belt 5 using the drive belt 6, the handrail belt 5 and the drive belt 6 are brought into surface contact to transmit the driving force. In order to transmit the driving force from the driving belt 6 to the handrail belt 5, it is not necessary to bring the handrail belt 5 and the driving belt 6 into contact with each other all around the handrail belt 5 and the driving belt 6. A contact portion 51 can be provided. In the escalator of the fourth embodiment, the drive belt drive mechanism 40 and the cleaning device 50 are arranged in the non-contact part 51.

[0053] When the escalator is driven, the handrail belt 5 and the drive belt 6 are circulated and moved integrally by driving the electric motor 10. In the non-contact portion 51, the handrail belt 5 that circulates away from the drive belt 6 is immersed in the cleaning liquid 52 in the cleaning container 53, and the cleaning liquid 52 and dirt attached to the handrail belt 5 are absorbed by the sponge roller 54. Wiped off.

[0054] Thereby, the handrail belt 5 can always be kept clean, and the escalator user can comfortably use the escalator.

In this embodiment as well, the inner peripheral surface 6b of the drive belt 6 (FIG. 6) is changed to the outer peripheral surface 6a. Compared to smooth formation. For this reason, it is possible to reduce sliding noise generated by contact between the inner peripheral surface 6b and the guide rail 18, rolling noise generated by contact between the inner peripheral surface 6b and the guide roller 19, and the like.

[0056] (Fifth embodiment)

An escalator which is a passenger conveyor according to a fifth embodiment of the present invention will be described with reference to FIG.

[0057] In the escalator of the fifth embodiment, a cleaning device 60 for cleaning the handrail belt 5 is detachably provided. This cleaning device 60 is removed during normal operation and is installed only during maintenance. The cleaning device 60 includes a cleaning container 53 that stores the cleaning liquid 52 and a sponge roller 54 that wipes the cleaning liquid 52 attached to the handrail belt 5.

[0058] Between the handrail belt 5 and the drive belt 6, there is provided a separable portion 61 capable of separating the handrail belt 5 by the force of the drive belt 6, and the handrail belt 5 is separated from the drive belt 6. The cleaning device 60 is detachably attached to the possible portion 61.

[0059] FIG. 7 shows a state in which the handrail belt 5 is separated from the drive belt 6 in the separable portion 61 and the cleaning device 60 is attached to the separable portion 61 in which the handrail belt 5 and the drive belt 6 are separated. It is a state.

[0060] The operation of separating the handrail belt 5 from the drive belt 6 in the separable portion 61 is performed by pulling the handrail belt 5 from the truss 1 at the position of the separable portion 61, and in the truss 1 during normal operation. Then, the handrail belt 5 located at the position indicated by the two-dot difference line is moved to the position indicated by the solid line.

[0061] After the handrail belt 5 is separated from the drive belt 6 in the separable portion 61, the cleaning device 60 is attached to the separable portion 61 where the handrail belt 5 and the drive belt 6 are separated. Wash the handrail belt 5 by immersing the handrail belt 5 in the cleaning liquid 52 in the cleaning container 53 of the attached cleaning device 60, drive the electric motor 10, and circulatingly move the handrail belt 5 immersed in the cleaning liquid 52. .

In such a configuration, in an escalator that drives the handrail belt 5 using the drive belt 6, the handrail belt 5 and the drive belt 6 are brought into surface contact to transmit the driving force. In order to transmit the driving force from the driving belt 6 to the handrail belt 5, the handrail belt 5 and It is possible to provide a separable portion 61 between the handrail belt 5 and the drive belt 6 that do not need to contact the drive belt 6 all around. In the escalator of the fifth embodiment, by pulling the handrail belt 5 during maintenance, the handrail belt 5 and the drive belt 6 are separated from each other in the separable portion 61, and the cleaning device 60 is attached to the separable portion 61. The handrail belt 5 is washed.

[0063] Therefore, the cleaning device 60 can be easily attached during maintenance, and the handrail belt 5 can be easily cleaned. As a result, the handrail belt 5 can be kept clean, and the escalator user can comfortably use the escalator.

In this embodiment as well, the inner peripheral surface 6b of the drive belt 6 (FIG. 7) is formed more smoothly than the outer peripheral surface 6a. For this reason, it is possible to reduce sliding noise generated by contact between the inner peripheral surface 6b and the guide rail 18, rolling noise generated by contact between the inner peripheral surface 6b and the guide roller 19, and the like.

[0065] (Sixth embodiment)

An escalator which is a passenger conveyor according to a sixth embodiment of the present invention will be described with reference to FIG.

[0066] The escalator of the sixth embodiment detects the slip of the handrail belt 5 generated between the handrail belt 5 and the drive belt 6 with respect to the escalator according to the first embodiment described above. The difference is that a slip detection mechanism 70 and a runaway prevention mechanism 71 that operates based on the detection result of the slip detection mechanism 70 and prevents the handrail belt 5 from running away due to slippage are provided. Are the same. Hereinafter, the difference will be mainly described.

[0067] The slip detection mechanism 70 is configured such that an object is sandwiched between the handrail belt 5 and the drive belt 6 or a large force acts along the direction of circulation of the handrail belt 5 to This is a mechanism for detecting that slip occurs between the belt 5 and the driving belt 6 and the moving speeds of the handrail belt 5 and the driving belt 6 are different. The slip detection mechanism 70 includes a guide roller 72 that rotates in contact with the handrail belt 5 that circulates and moves away from the drive belt 6, and a rotation speed of the guide roller 72 (synonymous with the movement speed of the handrail belt 5). And the moving speed of the drive belt 6 are input, and a comparison unit 73 that compares the two speeds is configured. [0068] The comparison unit 73 is connected to a control unit (not shown) that controls the operation of the escalator. When the comparison unit 73 detects that a slip has occurred between the handrail belt 5 and the drive belt 6, a signal that detects the occurrence of the slip is output from the comparison unit 73 to the control unit, and the control unit receives the escalator. Control to stop the operation.

[0069] Here, the magnitude of the load causing the slip between the handrail belt 5 and the drive belt 6 is within the range where the handrail belt 5 and the drive belt 6 circulate in contact with each other. It is almost the same at any position. In other words, if an accident has occurred between the handrail belt 5 and the drive belt 6 if the accident occurs at the same position, the degree of the accident is the same. Slip occurs, and the escalator operation can be stopped based on the detected slip. As a result, safety against accidents caused by being caught can be improved. When an accident occurs between the handrail belt 5 and the drive belt 6, the magnitude of the load that causes slippage between the handrail belt 5 and the drive belt 6 regardless of the position where the accident occurred Is substantially the same because the transmission of the driving force from the handrail belt 5 to the drive belt 6 is performed in the contact area for a long time when the handrail belt 5 and the drive belt 6 are in contact with each other! This is because the transmission state of the driving force from the handrail belt 5 to the driving belt 6 does not change depending on the position where the accident has occurred.

[0070] In the escape prevention mechanism 71, slip occurs between the handrail belt 5 and the drive belt 6, and the movement speed of the handrail belt 5 becomes faster than the movement speed of the drive belt 6, or the movement method of the handrail belt 5 This is a mechanism that regulates that the direction of the drive belt 6 is opposite to the moving direction of the drive belt 6, that is, that the handrail belt 5 escapes from the drive belt 6. Such a runaway of the handrail belt 5 occurs when the escalator is stopped for some reason and the weight of many escalator users acts on the handrail belt 5 at that time.

[0071] The escape prevention mechanism 71 is connected in parallel to a pair of links 75a and 75b that are arranged in parallel and are rotatable about the support shafts 74a and 74b, and one end side of the links 75a and 75b. A wedge storage portion 76 and a suspension weight 77 rotatably connected to the other ends of the links 75a and 75b are provided. The links 75a and 75b, the wedge storage portion 76, and the suspension weight 77 constitute a parallelogram link mechanism.

A solenoid 78 is connected to the suspension weight 77. Solenoid 78 is normally connected It is turned on when it is energized, and the lifting weight 77 is attracted. Solenoid 78 is turned off based on the detection result when slippage is detected in slip detection mechanism 70, and suspension weight 77 is pushed out.

[0073] The wedge storage portion 76 is disposed at a position facing the inner peripheral surface 5b of the handrail belt 5, and a brake shoe 79 is disposed at a position facing the wedge storage portion 76 across the handrail belt 5. Yes. A long hole 80 is formed in the brake shoe 79 in the direction along the direction of circulation of the handrail belt 5, and a holding shaft 81 is inserted into the long hole 80. The brake shoe 79 is held movably within the longitudinal range of the elongated hole 80. A wedge 83 located in the wedge-shaped space 82 is stored in the wedge storage portion 76. A return panel 84 is connected to the wedge 83. The wedge-shaped space 82 and the wedge 83 are formed in a shape that gradually becomes narrower in the direction of circulation and movement of the handrail belt 5 indicated by the arrow A. When the solenoid 78 is turned off and the links 75a and 75b and the wedge storage section 76 rotate about the support shafts 74a and 74b, the stopper 85 for restricting the rotation range is rotated by the wedge storage section 76. It is arranged in the forward direction.

[0074] In such a configuration, when an accident occurs between the handrail belt 5 and the drive belt 6, the circulation movement of the handrail belt 5 is restricted and slippage occurs between the hand belt 6 and the drive belt 6. This slip is detected by the slip detection mechanism 70.

[0075] When slip is detected by the slip detection mechanism 70, escalator stop control is performed by the control unit based on the detection result, and the operation of the escalator is stopped.

Furthermore, based on the slip detection result by the slip detection mechanism 70, the solenoid 78 is turned off. When the solenoid 78 is turned off, the suspension weight 77 is pushed out in the direction of the arrow B, and rotates in the direction of the arrow C using the link 75a, 75b force support shafts 74a, 74b as fulcrums. By this rotation, the lower surface of the wedge storage portion 76 and the lower surface of the wedge 83 are pressed against the inner peripheral surface 5b of the handrail belt 5.

[0077] When the lower surface of the wedge storage portion 76 and the lower surface of the wedge 83 are pressed against the inner peripheral surface 5b of the handrail belt 5, the wedge storage portion 76 contacts the stopper 85 due to friction with the handrail belt 5 moving due to inertia. Then, the wedge 83 moves to the position indicated by the broken line in the wedge-shaped space 82 due to friction with the handrail belt 5, and the wedge 83 moves to the position indicated by the broken line in the wedge-shaped space 82 and the inner peripheral surface of the handrail belt 5 Cut in between 5b. By this biting in, the outer peripheral surface 5a of the handrail belt 5 is strongly pressed against the brake 79, and the handrail belt 5 can be prevented from running away. Therefore, by providing the slip detection mechanism 70, the occurrence of slip between the handrail belt 5 and the drive belt 6 can be detected, and measures such as stopping the escalator operation based on the detection result are provided. Can be taken.

[0079] Further, by providing a runaway prevention mechanism 71 that operates based on the detection result of the slip detection mechanism 70, when a slip occurs between the handrail belt 5 and the drive belt 6, the handrail belt 5 is moved. It can be regulated to prevent the handrail belt 5 from running away, and safety for escalator users can be improved.

In this embodiment as well, the inner peripheral surface 6b of the drive belt 6 is formed more smoothly than the outer peripheral surface 6a, and the sliding noise generated by the contact between the inner peripheral surface 6b and the guide rail 18 is reduced. The rolling noise generated by the contact between the inner peripheral surface 6b and the guide roller 19 can be reduced.

[0081] It is obvious that the elevators according to the second to fifth embodiments can also be provided with the slip detection mechanism 70 and the escape prevention mechanism 71.

Industrial applicability

[0082] The present invention can be used mainly in the field of passenger transportation such as land passenger transportation, in particular, escalators and moving walkways. According to the present invention, it is possible to provide a passenger conveyor with reduced sliding noise and rolling noise, and the passenger conveyor can be installed in a quiet environment.

Claims

The scope of the claims

[1] A pair of balustrades (4) arranged on both sides of a plurality of stepped portions (2) connected endlessly and movable in circulation,

A handrail belt (5) that is wound around the balustrade (4) and can be circulated;

A driving belt (6) that contacts the inner peripheral surface of the handrail belt (5) and circulates and moves in the same direction as the handrail belt (5) and transmits a driving force to the handrail belt (5);

A drive wheel body (20, 36, 42) that is rotationally driven in contact with a surface of the drive belt (6) that contacts the handrail belt (5), and the drive wheel body (20, 36, 42); And a pressure body (21, 37, 43) disposed at a position sandwiching the drive belt (6) by the drive belt (6

Drive belt drive mechanism (7, 30, 40)

Passenger conveyor characterized by comprising.

[2] Between the handrail belt (5) and the drive belt (6), there is a non-contact portion (51) where the handrail belt (5) and the drive belt (6) are separated from each other and are not in contact with each other. The passenger conveyor according to claim 1, wherein a cleaning device (50) is provided for cleaning the handrail belt (5) in a region of the non-contact portion (51).

[3] A separable portion (61) is provided between the handrail belt (5) and the drive belt (6), the separable portion (61) capable of separating the handrail belt (5) from the drive belt (6), The passenger conveyor according to claim 1, further comprising a cleaning device (60) for cleaning the handrail belt (5) that can be mounted in the region of the separable portion (61).

[4] The surface of the drive belt (6) that contacts the pressurizing body (21, 37, 43) is a smooth surface. One passenger conveyor.

5. A slip detection mechanism (70) for detecting slippage of the handrail belt (5) generated between the handrail belt (5) and the drive belt (6). !, 4 Passenger conveyors as described in either one.

[6] Based on the detection result of the slip detection mechanism (70)!

6. The passenger conveyor according to claim 5, further comprising an escape prevention mechanism (71) for preventing the escape of (5).