JP5612140B2 - Passenger conveyor - Google Patents

Description

  Embodiments of the present invention relate to passenger conveyors such as escalators and moving walkways.

  Conventionally, a handrail belt that can be circulated and wound around a pair of right and left railings of a passenger conveyor, and is circulated and moved in the same direction as the handrail belt in contact with the inner peripheral surface of the handrail belt, A passenger conveyor having a driving belt for transmitting driving force has been proposed.

JP 2004-269155 A JP 2007-182273 A

  However, in the above passenger conveyor, the handrail belt has no left-right restraining force even though it is easy to contact and separate from the drive belt. However, there is a problem in that energy loss increases and wear of the surface of the driving belt that contacts the handrail belt advances.

  Therefore, in view of the above problems, an embodiment of the present invention provides a passenger conveyor in which energy loss due to friction or the like is reduced and wear of the handrail belt does not progress when the handrail belt is circulated using the drive belt. With the goal.

Embodiments of the present invention are endlessly connected to a plurality of steps that can be circulated, a pair of left and right balustrades that are erected on both sides of the step, and can be circulated around the balustrade, A handrail belt having a groove formed on an inner peripheral surface thereof, and a driving belt that is disposed in the groove of the handrail belt, circulates and moves in the same direction as the handrail belt, and transmits a driving force to the handrail belt. Yes, and the lower floor curved portion which is concavely curved in the balustrade, sliding body or pulley is provided on the top of the balustrade, said slider or said pulley, between the handrail belt and the drive belt It is a passenger conveyor.
In addition, the embodiment of the present invention can be circulated and moved around a plurality of steps connected endlessly and capable of circulating movement, a pair of right and left railings erected on both sides of the step. A handrail belt having a groove formed on an inner peripheral surface thereof, a drive belt that is disposed in the groove of the handrail belt, circulates in the same direction as the handrail belt, and transmits a driving force to the handrail belt; An inlet safety device in an inlet through which the handrail belt and the drive belt enter, and the inlet safety device protrudes from the inlet and can be pressed inside the inlet; and the drive inside the inlet A brake member that presses only the handrail belt separated from the belt and stops traveling; and the brake member when the pressing portion is pressed into the inlet. A stop means for pressing only the handrail belt is in which passengers conveyors have.

It is a side view showing the whole escalator composition of a 1st embodiment. It is the sectional view on the AA line in FIG. It is a perspective view of a drive belt. It is a side view which shows a belt drive device. It is a side view of a lower floor curved part. It is the BB sectional view taken on the line in FIG. It is CC sectional view taken on the line in FIG. It is a longitudinal cross-sectional view of the handrail belt and drive belt of 2nd Embodiment. It is a longitudinal cross-sectional view of the handrail belt and drive belt of the example of a change in 2nd Embodiment. It is a side view of the escalator 100 in 3rd Embodiment. It is explanatory drawing of the inlet safety device of the normal state in 4th Embodiment. It is explanatory drawing of the inlet safety device of an emergency stop state.

  Hereinafter, the escalator which is a passenger conveyor of one embodiment of the present invention is explained using a drawing.

First embodiment

  The escalator 100 which concerns on 1st Embodiment is demonstrated based on FIGS. In the following description, it is assumed that the escalator 100 is rising.

(1) Structure of Escalator 100 The structure of the escalator 100 will be described with reference to FIG.

  As shown in FIG. 1, an escalator 100 circulates and moves a truss 1 installed between a lower floor and an upper floor of a building, a plurality of steps 2 connected endlessly and circulated, and the steps 2 A step drive device 3, a pair of left and right balustrades 4 disposed on both sides of the step 2, and a handrail belt 5 that wraps around the balustrade 4 and circulates.

  The escalator 100 includes a drive belt 6 disposed inside the handrail belt 5 and a belt drive device 7 that drives the drive belt 6.

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

  The step driving device 3 rotationally drives the step sprocket 9a disposed below the boarding board at the entrance on the upper floor, the step sprocket 9b disposed below the boarding board at the entrance on the lower floor, and the step sprocket 9a. And an electric motor 10 to be operated. A step chain 8 is stretched between the step sprocket 9a and the step sprocket 9b, and the electric motor 10 is driven to rotate the step sprocket 9a. When the step sprocket 9a is driven to rotate, the step chain 8 circulates and moves 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.

  Two sprockets of a first sprocket 12 and a second sprocket 13 are connected to the rotating shaft 11 of the step sprocket 9a. A chain 15 is stretched between the first sprocket 12 and a sprocket 14 provided in the electric motor 10. A chain 17 is stretched between the second sprocket 13 and a sprocket 16 provided for transmitting a driving force to the belt driving device 7.

  The pair of left and right 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 for guiding the driving belt 6 and the handrail belt 5 that circulate and move are provided at the peripheral edge of the balustrade 4. The guide roller 19 is provided at a position where the drive belt 6 and the handrail belt 5 that circulate and move on the upper floor side and the lower floor side are turned back.

(2) Structure of the handrail belt 5 The structure of the handrail belt 5 will be described with reference to FIGS. FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, and FIG. 3 is a perspective view of the drive belt 6.

  As shown in FIG. 2, 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. An outer peripheral surface 51 of the handrail belt 5 is a portion where a passenger puts a hand, and the handrail belt 5 circulates in synchronization with the steps 2. A groove 53 is provided in the inner peripheral surface 52 of the handrail belt 5 along the traveling direction. Both side portions of the groove 53 are chamfered to form an inclined surface 53.

  As shown in FIGS. 2 and 3, the drive belt 6 is a flat belt and is disposed between the guide rail 18 and the handrail belt 5, and the outer peripheral surface 61 contacts the inner peripheral surface 52 of the handrail belt 5. The inner peripheral surface 62 is in contact with the guide rail 18 and the guide roller 19. The driving belt 6 is circulated and moved by being driven by the belt driving device 7, and a driving force is transmitted to the handrail belt 5 in a region where the driving belt 6 is in contact with the handrail belt 5. . And since the drive belt 6 is distribute | arranged inside the handrail belt 6 and is accommodated in the balustrade 4, it is not exposed outside.

  Therefore, the surface of the drive belt 6 that contacts the handrail belt 5 (the outer peripheral surface 61 of the drive belt 6) and the surface of the handrail belt 5 that contacts the drive belt 6 (the inner peripheral surface 52 of the handrail belt 5) are both frictional. It is formed on a surface having a large coefficient, and in particular, the outer peripheral surface 61 of the drive belt 6 is provided with a canvas 63. On the other hand, the inner peripheral surface 62 of the drive belt 6 is formed as a smooth surface with a low coefficient of friction. A plurality of steel wires are embedded in the driving belt 6 in the traveling direction for reinforcement.

(3) Structure of Belt Driving Device 7 The structure of the belt driving device 7 will be described with reference to FIG.

  As shown in FIG. 4, the belt driving device 7 includes a driving roller 20 and a pressure roller 21 in a plurality of sets. The drive roller 20 is driven to rotate in contact with the outer peripheral surface 61 of the drive belt 6 (the surface of the drive belt 6 that contacts the handrail belt 5). The pressure roller 21 is a pressure body that is disposed at a position sandwiching the drive belt 6 by the drive roller 20 and presses against the inner peripheral surface 62 of the drive belt 6. A spring 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 spring 22.

  The pressure roller 21 and the spring 22 are arranged inside the balustrade 4 and are arranged at a position where a hand can reach from the outside of the balustrade 4 by removing a part of the balustrade 4 called an inner ledge.

  The outer peripheral surface 61 in contact with the driving roller 20 in the driving belt 6 is a surface in contact with the inner peripheral surface 52 of the handrail belt 5 and has a large friction coefficient. For this reason, transmission of the driving force from the driving roller 20 to the driving belt 6 when the driving roller 20 contacts the outer peripheral surface 61 of the driving belt 6 can be performed satisfactorily.

  On the other hand, the inner peripheral surface 62 that contacts the pressure roller 21 in the driving belt 6 is a surface that contacts the guide rail 18 and the guide roller 19, and has a smooth surface compared to the outer peripheral surface 61 that contacts the driving roller 20. The surface with a small frictional force.

  A sprocket 20b is coaxially connected to the rotation shaft 20a of each drive roller 20, and a chain 27 is formed between the sprocket 20b, the sprocket 24 connected to the rotation shaft 23a of the gear 23, and the sprockets 25 and 26. It is being handed over. A spring 261 for applying tension to the chain 27 is attached to the sprocket 26. The gear 23 meshes with the gear 28, and the sprocket 16 is connected to the rotation shaft 28 a of the gear 28.

  When the electric motor 10 is driven, the driving force from the electric motor 10 is transmitted to the sprocket 16 via the chain 15, the sprockets 12, 13 and the chain 17, and the sprocket 16 and the gear 28 rotate together. As the gear 28 rotates, the gear 23 that meshes with the gear 28 rotates together with the sprocket 24. The rotation of the sprocket 24 is transmitted to the sprocket 20b through the chain 27, and the drive roller 20 is rotationally driven integrally with the sprocket 20b. When the driving roller 20 is rotationally driven, a driving force is transmitted to the driving belt 6 with which the driving roller 20 is in contact, and the driving belt 6 circulates and moves.

(4) Operation State of Belt Drive Device 7 The operation of the belt drive device 7 will be described with reference to FIG.

  When the electric motor 10 is driven, the step driving device 3 and the belt driving device 7 are driven. When the step driving device 3 is driven, the step 2 circulates and moves. When the belt driving device 7 is driven, the driving belt 6 circulates and moves. As the drive belt 6 circulates, the handrail belt 5 circulates and moves integrally with the drive belt 6. The step drive device 3 and the belt drive device 7 have the same speed of movement as the step 2 and the drive belt 6 in terms of the diameters of the sprockets 12, 13 and 16, the number of teeth of the gears 23 and 28, and the number of teeth of the sprockets 24 and 20b. It is set to cycle.

  In the belt driving device 7, the driving roller 20 that transmits the driving force to the driving belt 6 is in contact with the outer peripheral surface 61 that is the surface of the driving belt 6 having a high friction coefficient (the surface on which the canvas 63 is applied). For this reason, the driving belt 6 and the driving roller 20 are unlikely to slip at the contact portion, and the driving force from the driving roller 20 to the driving belt 6 can be transmitted favorably.

  In addition, the contact portion between the drive belt 6 and the handrail belt 5 is such that the outer peripheral surface 61 of the drive belt 6 and the inner peripheral surface 52 of the handrail belt 5 in contact with the outer peripheral surface 61 have a high friction coefficient (the canvas 63 is Further, the drive belt 6 and the handrail belt 5 are in contact with each other over a wide area along the circulation movement direction. Therefore, the outer peripheral surface 61 of the drive belt 6 and the inner peripheral surface 52 of the handrail belt 5 can be brought into contact with each other, so that driving force can be transmitted from the drive belt 6 to the handrail belt 5 favorably. 5 can be circulated together without causing slippage at the contact portion.

  Further, the inner peripheral surface 62 of the drive belt 6 that contacts the pressure roller 21 is a smooth surface having a low coefficient of friction, and when the drive belt 6 circulates, the inner peripheral surface 62 is guided by the guide rail 18 or the guide roller 19. To touch. Therefore, it is possible to suppress the occurrence of sliding contact noise when the inner peripheral surface 62 is in contact with the guide rail 18 and the generation of rolling noise of the guide roller 19 when the inner peripheral surface 62 is in contact with the guide roller 19. Further, even when the guide rail 18 has a joint, the inner peripheral surface 62 having a smooth surface can smoothly pass through the joint portion. Therefore, even if the drive belt 6 passes through the joint portion of the guide rail 18, it is large. No sliding noise is generated.

(5) Structure of Lower Floor Curved Section 24 Next, the structure of the lower floor curved section 24 will be described with reference to FIGS. 1 and 5 to 7.

  As shown in FIG. 1, the lower floor bending portion 24 means a portion that is curved and inclined from the horizontal state on the lower floor side when the balustrade 4 is directed from the lower floor side to the upper floor side. 5 is an enlarged view of the lower floor curved portion, FIG. 6 is a sectional view taken along line BB in FIG. 5, and FIG. 7 is a sectional view taken along line CC in FIG.

  In the lower floor curved portion 24, the handrail belt 5 needs to be curved so that the passenger can drive it smoothly and the drive belt 6 is housed inside the balustrade 4 so that there is no friction. A structure to run is necessary. The traveling structure will be described.

  As shown in FIGS. 6 and 7, a guide rail 18 is provided on the upper part of the balustrade 4 formed of a thick glass plate. The guide rail 18 is fixed to the upper end portion of the balustrade 4, and the upper end portion extends on both sides to form flange portions 28 and 28. The jaw portions 55 and 55 at both ends of the C-shaped handrail belt 5 are attached so as to cover the pair of left and right flange portions 28 and 28.

  As shown in FIGS. 5 and 6, pulleys 35 and 25 are rotatably provided on the guide rails 18 on the upper floor side and the lower floor side of the lower floor bending portion 24, respectively. The flanges 26 are provided at both ends of the pulley 25, and the drive belt 6 travels between the left and right flanges 26. 26 while being housed in the groove 53 of the handrail belt 5.

  As shown in FIG. 5, between the upper floor side pulley 35 and the lower floor side pulley 25 of the lower floor bending portion 24 and between the handrail belt 5 and the drive belt 6, the track is adjusted. Sliding parts 34 and 30 are provided.

  As shown in FIGS. 5 and 7, there are three drum-type pulleys between the sliding portions 34 and 30 of the lower floor bending portion 24 and between the handrail belt 5 and the driving belt 6. 31, 32, and 33 are rotatably provided.

(6) Effect In the above embodiment, the groove 53 is provided on the inner peripheral surface of the handrail belt 5 and the drive belt 6 is housed inside the groove 53, so that the drive belt 6 can be easily brought into and out of contact with the handrail belt 5. In addition, the driving belt 6 applies a restraining force in the left-right direction to the handrail belt 5, and the handrail belt 5 does not move to the left or right even if a force in the left-right direction acts on the handrail belt 5. 52 does not contact the guide rail 18 or the flange portion 28 of the guide rail 18. Therefore, energy loss due to friction or the like during traveling of the handrail belt 5 is reduced and energy is saved. Further, since the wear of the handrail belt 5 is reduced, the durability is improved.

  Further, the drive belt 6 is a flat belt and is an inexpensive commercial product as introduced in the mechanical engineering manual, so that the cost can be reduced. Moreover, a steel wire or a steel strip can be removed from the expensive handrail belt 5 and can be made cheaper than the conventional one. Therefore, even if the conventional handrail belt 5 is divided into the shape of the handrail belt 5 and the drive belt 6 in this embodiment, the cost does not increase.

  Further, in conventional maintenance, the handrail belt is replaced due to various factors such as deterioration of design properties due to elongation and dirt, and a decrease in driving force due to wear. However, in the present embodiment, since the wear is small, the cause of deterioration of the design property is extended, and if it is due to dirt, only the handrail belt 5 may be replaced. On the other hand, if the cause is a decrease in driving force due to wear, It is also efficient in terms of maintenance work, such as replacing only the drive belt 6.

  Further, since the drive belt 6 in the lower floor curved portion 24 passes through the lower surfaces of the sliding portions 30 and 34 and the pulleys 31, 32, and 33, it does not float upward.

  Further, even if a tension for transmitting a driving force is applied to the driving belt 6 and a lifting force is applied to the lower floor bending portion 24, the sliding bodies 30 and 34 and the pulleys 31, 32 and 33 in which the driving belt 6 is built in the balustrade 4 are applied. Therefore, the handrail belt 5 on it is pushed upward, and the C-shaped jaws 55 and 55 of the handrail belt 5 do not contact the balustrade 4 and the flange portion 28 of the guide rail 18.

  Further, in the case of the belt driving device 7, the surface of the inner peripheral surface 62 of the driving belt 6 is formed smoothly, so that the inner peripheral surface 62 of the driving belt 6 contacts the guide rail 18 and the guide roller 19. The frictional resistance at the part can be reduced. For this reason, it becomes possible to hold down the output of the electric motor 10 that drives the drive belt 6, and the power consumption can be reduced.

  Further, since the pressure roller 21 and the spring 22 are arranged at a position where the hand can reach from the outside of the balustrade 4 by removing a part of the balustrade 4 called an inner ledge, the urging force adjustment of the spring 22 can be adjusted. This can be easily performed, and the transmission of the driving force to the driving belt 6 by the belt driving device 7 can always be maintained in a good state.

Second embodiment

  Next, the escalator 100 of 2nd Embodiment is demonstrated based on FIG.8 and FIG.9.

  The difference between this embodiment and the first embodiment is that the driving belt 6 is a flat belt as shown in FIG. 3 in the first embodiment, but in this embodiment, as shown in FIG. The belt 6 is a flat V-belt type. That is, the drive belt 6 has a trapezoidal cross section. In accordance with this, a groove 53 having a trapezoidal cross section is also provided on the inner peripheral surface 52 of the handrail belt 5.

  In the case of the handrail belt 5 and the drive belt 6 of the present embodiment, the grooves 53 provided on the inner peripheral surface 52 of the handrail belt 5 have diagonal slopes opposite to each other, so that a flat V-belt type drive belt is provided. 6 is increased, and the effect of generating friction on the contact surface is increased. In addition to the frictional force of the canvas 63 alone, the driving belt 6 can be given sufficient driving force to the handrail belt 5 with higher effectiveness.

  In the present embodiment, the flat V-belt type driving belt 6 is used. However, as shown in FIG. 9, a modified V-belt type driving belt 6 having a plurality of triangular irregularities is used as a modified example. A groove 53 having a plurality of triangular grooves is formed on the inner peripheral surface 52.

  Also in this modified example, the driving belt 6 can bite into the groove 53 at an oblique gradient, and the effect of causing friction on the contact surface can be increased.

Third embodiment

  Next, the escalator 100 which concerns on 3rd Embodiment is demonstrated based on FIG.

  In the present embodiment, in addition to the configuration of the escalator 100 of the first embodiment, as shown in FIG. 10, the handrail belt 5 and the drive belt 6 are sandwiched in front of the belt drive device 7 (the return path on the upper floor side). This is characterized in that a clamping device 40 is provided.

  In the pinching device 40, a fixed roller 41 having a large diameter is rotatably disposed on the handrail belt 5 side, and a pressure roller 43 is rotatably disposed on the drive belt 6 side by a spring 42 with a guide instruction mechanism (not shown). The handrail belt 5 and the drive belt 6 are sandwiched from above and below. Next, the role of the clamping device 40 will be described with reference to FIG. In FIG. 10, the distribution of the effect on the driving belt 6 due to the weight w of the handrail belt 5 is shown by arrows.

  First, since the handrail belt 5 is like a rubber band placed on a drive belt 6 having a fixed shape, the distribution of effectiveness is considered to be constant regardless of the state of the drive force transmitting the drive belt 6.

  Next, when a passenger puts his hand on the handrail belt 5 or the concentration effect or the lateral force applied to the elbow is applied, the force is transmitted to the drive belt 6 at that position, and friction between the rail 4 and the rail 4 is caused by the force. If it occurs, the drive belt 6 bears the friction. Further, when the passenger applies a force to the handrail belt 5, the driving belt 6 bears this force as long as it is less than the friction force that can be generated from the effect applied by the passenger or the force in the lateral direction.

  When the passenger applies force in the direction of the handrail belt, only the force exceeding the friction force that can be generated from the effect applied by the passenger or the force in the lateral direction is passed through the handrail belt 5. Will be transmitted in the direction of travel. This force can be expressed as the sum of the passengers on the escalator 100, and can be managed so that the handrail belt 5 slides on the drive belt 6 when the sum of the frictional forces in the effect distribution exceeds a constant (constant).

  However, in the case of the escalator 100 having a short distance, an appropriate driving force for safety as the handrail belt 5 may not be obtained. However, when the clamping device 40 of the present embodiment is provided on the return path side, the fixed roller 41 and the pressure roller 43 of the clamping device 40 clamp the handrail belt 5 and the drive belt 6 to generate frictional force. Can compensate for the shortage of the sum.

  As described above, since the driving force from the driving belt 6 to the handrail belt 5 can be appropriately managed, the handrail belt 5 does not easily deviate with a small force, and can be relied on to prevent the passenger from falling, and is safe.

  In addition, since the escalator 100 has a gradient, the fixed roller 41 may be provided with a brake device with a speed governor that works at a rated speed or more in the falling direction. If this brake device with a governor is provided on the fixed roller 41, the brake can be applied even when the speed of the handrail belt 5 increases due to the fall of many passengers. In addition, the brake device with a governor is used for a device that prevents a vertical drop from a lifting ladder of a steel tower.

Fourth embodiment

  The escalator 100 of 4th Embodiment is demonstrated based on FIG.11 and FIG.12.

  The difference between this embodiment and the first embodiment is the structure of the inlet 71 of the escalator 100. Front skirt guards 70 are provided on the upper and lower floors of the balustrade 4 of the escalator 100. An inlet 71 is provided in front of the front skirt guard 70, and the traveling handrail belt 5 and the driving belt 6 enter the opening of the inlet 71. In this case, since the passenger's hand or baggage may be pinched with the entry of the handrail belt 5, the inlet safety device 72 is provided. This embodiment is characterized by this inlet safety device 72. Hereinafter, the inlet safety device 72 will be described.

(1) Configuration of Inlet Safety Device 72 The handrail belt 5 and the drive belt 6 enter the opening 73 of the inlet 71 in contact with each other. A rubber pressing portion 74 is provided in the intruding portion, and the handrail belt 5 and the driving belt 6 enter the through hole 75 provided in the central portion of the pressing portion 74.

  The pressing portion 74 is supported by the support plate 76. A spring plate 77 made of spring steel is provided at the lower end of the support plate 76 in parallel with the traveling direction of the handrail belt 5. Two parallel support spring plates 78 and 79 are provided on the pressing portion 74 side of the spring plate 77. Further, a lower brake member 80 is provided behind the spring plate 77 between the handrail belt 5. The lower brake member 80 is provided with two parallel link members 81 and 82, and supports the lower brake member 80 movably. The spring plate 77, the support spring plates 78 and 79, and the parallel link members 81 and 82 correspond to the stopping means.

  An upper brake member 83 is provided above the lower brake member 80, and the handrail belt 5 can be sandwiched between the upper brake member 83 and the lower brake member 80. The upper brake member 83 has a triangular shape and separates the handrail belt 5 and the drive belt 6. A guide roller 84 is provided below the handrail belt 5, and two guide rollers 85 and 86 are also provided on the drive belt 6.

(2) Operation State of Inlet Safety Device 72 The operation state of the inlet safety device 72 having the above configuration will be described with reference to FIGS. 11 and 12. FIG. 11 shows a state where the inlet safety device 72 is not activated (normal state), and FIG. 12 shows an state where the inlet safety device 72 is activated (emergency stop state).

  In the normal state shown in FIG. 11, the pressing portion 74 is in a state of protruding partly from the inlet 71, the lower brake member 80 is not in contact with the handrail belt 5, and the handrail belt 5 and the drive belt 6 are not in the inlet. It invades 71 at a running speed.

  As shown in FIG. 12, when the pressing portion 74 is pushed inward by the passenger's hand or the like, the pressing portion 74 pushes the support plate 76, and the spring plate 77 moves from the left side to the right side in FIG. The lower brake member 80 presses the upper brake member 83 in such a state that the parallel link members 81 and 82 are erected upward. As a result, the travel of the handrail belt 5 is immediately stopped. On the other hand, when the pressing portion 74 is pressed, the drive belt 6 is driven by a limit switch (not shown), the step driving device 3 and the belt driving device 7 are stopped, and the driving belt 6 is also stopped thereafter.

(3) Effect In the inlet safety device 72 of the present embodiment, the drive belt 6 is covered with the handrail belt 5 and the balustrade 4, so that the passenger cannot touch the drive belt 6. Therefore, when a passenger's hand accidentally enters the inlet 71 and is dragged into the movement of the handrail belt 5, only the handrail belt 5 is sandwiched between the lower brake member 80 and the upper brake member 83 and immediately stopped. Only the handrail belt 5 can be stopped before the passenger puts his hand inside the inlet 71 and is involved.

  That is, when the passenger's hand begins to be dragged into the inlet 71, the pressing portion 74 is pressed. The pressing portion 74 is pressed while maintaining the posture in which the spring plate 77 and the parallel link members 81 and 82 are combined. On the way, a limit switch (not shown) detects that the pressing portion 74 has been operated, and a control device (not shown) slowly starts stopping the step 2 so that the passenger does not fall. At this time, the lower brake member 80 attached to the spring plate 77 is pressed against the handrail belt 5 by the parallel link members 81 and 82, and the lower brake member 80 is pulled in by the frictional force with the handrail belt 5.

  Then, as shown in FIG. 12, the lower brake member 80 pushes the handrail belt 5 with a large force with which the parallel link members 81 and 82 rise, and sandwiches the handrail belt 5 between the upper brake member 83 arranged on the opposite side. In addition, after a passenger accidentally enters the inlet 71, an emergency stop can be made within several tens of millimeters. On the other hand, the drive belt 6 that has started to stop with the information of the limit switch (not shown) slowly decelerates at a distance of several hundred mm in conjunction with the movement of the step 2, but the passenger does not touch the drive belt 6 in the middle. .

  Thus, after the passenger's hand accidentally enters the inlet 71, the handrail belt 6 can be stopped in an emergency within several tens of millimeters, which is safe. Further, only the handrail belt 5 on the side where the hand has entered can be stopped urgently, and the step 2 can be stopped slowly so that other passengers do not fall over. Further, the handrail belt 5 on the opposite side on which the inlet safety device 72 is operated is stopped safely so that it is safe.

Example of change

(1) Modification 1
Instead of the flanged pulley 25 and the drum-type pulleys 31, 32, 33 in the above embodiment, a guide rail with a concave groove is formed on the balustrade 4, for example, on the straight portion of the balustrade 4 having a small effect of generating friction. It may be partially used. In this case, since the inner peripheral surface 62 of the drive belt 6 is a soft surface and has a small effect, there is almost no friction between the balustrade 4 and the guide rail with the groove, so that energy saving and durability are improved.

(2) Modification example 2
Although the escalator 10010 has been described in the above embodiment, the above embodiment may be applied to a moving walk instead.

(3) Others Although one embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

2 ... crossing, 3 ... crossing drive device, 4 ... balustrade, 4c ... sliding body, 4d ... rotating roller, 5 ... handrail belt, 52 ... inner peripheral surface , 6 ... Driving belt, 7 ... Belt driving device, 100 ... Escalator

Claims (7)

A plurality of steps connected endlessly and capable of circulating movement;
A pair of left and right balustrades erected on both sides of the step;
A handrail belt that is wound around the balustrade and is capable of circulating movement, and has a groove formed on the inner peripheral surface;
A driving belt that is arranged in a groove of the handrail belt, circulates and moves in the same direction as the handrail belt, and transmits a driving force to the handrail belt;
I have a,
In the lower-floor curved portion that is curved concavely in the balustrade,
A sliding body or pulley is provided on the upper part of the balustrade,
The sliding body or the pulley is disposed between the drive belt and the handrail belt,
Passenger conveyor. Canvas is provided on the outer peripheral surface of the drive belt,
The passenger conveyor according to claim 1. The drive belt is a flat belt;
An inclined surface is formed at the corner of the groove of the handrail belt,
The passenger conveyor according to claim 1 or 2. The drive belt is a V-belt;
The groove of the handrail belt has a V-groove shape,
The passenger conveyor according to claim 1 or 2. A plurality of V-shaped uneven portions are formed on the drive belt,
The groove of the handrail belt is formed with a plurality of V-shaped grooves.
The passenger conveyor according to claim 1 or 2. On the overlapping travel on the return path of the handrail belt and the drive belt, a pinching device is provided that sandwiches the handrail belt and the drive belt with a fixed roller and a pressure roller.
The passenger conveyor as described in any one of Claims 1 thru | or 5 . A plurality of steps connected endlessly and capable of circulating movement;
A pair of left and right balustrades erected on both sides of the step;
A handrail belt that is wound around the balustrade and is capable of circulating movement, and has a groove formed on the inner peripheral surface;
A driving belt that is arranged in a groove of the handrail belt, circulates and moves in the same direction as the handrail belt, and transmits a driving force to the handrail belt;
An inlet safety device in an inlet through which the handrail belt and the driving belt enter;
Have
The inlet safety device is
A pressing portion protruding from the inlet and capable of being pressed into the inlet;
A brake member that presses only the handrail belt separated from the drive belt inside the inlet and stops traveling;
Stop means for pressing only the handrail belt with the brake member when the pressing portion is pressed inside the inlet;
And that passengers conveyor have.

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