JP5567090B2 - Passenger conveyor - Google Patents

Description

  Embodiments of the present invention relate to a passenger conveyor.

  In recent years, it has been required to prevent the vertical displacement, that is, the lifting of the steps on the passenger conveyor from the viewpoint of safety, and internationally, for example, according to the Chinese new standard of July 31, 2012, the lifting is 4 mm. The following is required.

  In passenger conveyors such as escalators and moving walkways that circulate and move between the forward and return paths having a horizontal part, an inclined part, and a curved part, for example, a gap between adjacent steps If a person's shoes or foreign objects are caught, the step may be lifted. Thus, when the abnormality of the lift on the step occurs, it is not preferable to continue the operation of the passenger conveyor because the passenger conveyor may be damaged and the safety of the passenger conveyor user. The horizontal portion refers to a portion where the steps move substantially horizontally with respect to the floor of the building in the moving area where the steps move, and the inclined portion refers to the step with respect to the floor of the building. The curved portion is a portion where the inclined portion and the horizontal portion are continuous, and the step is a portion where the step moves along a curved locus.

  Therefore, conventionally, a step abnormality detecting device for detecting an abnormality in the lifting of the step is provided, and when the step abnormality is detected by the step abnormality detecting device, control for stopping the operation of the passenger conveyor is performed. It is common.

  For example, a conventional step abnormality detection device provided on a passenger conveyor is provided on each of the horizontal portion on the start end side and the horizontal portion on the rear end side of the passenger conveyor on which the steps move, thereby raising the steps in the horizontal portion. Can be detected. In this step abnormality detection device, the rear wheel is suppressed above the horizontal portion of the rear wheel rail that supports the rear wheel of the step and guides the movement of the rear wheel so as to be parallel to the rear wheel rail with a predetermined interval. Rails are arranged. A micro switch for detecting the lift of the step is arranged on the rear wheel restraining rail. In addition, an opening is formed in the rear wheel restraining rail, an operation lever for operating the micro switch is provided above the opening of the rear wheel restraining rail, and the end of the operation lever is almost the same as the opening surface of the opening It is comprised so that it may be located in a surface. In such a structure, when the step moves to the horizontal part, the rear wheel of the step moves between the rear wheel rail and the rear wheel restraining rail. At this time, if the step is lifted, The rear wheel is displaced and moved toward the rear wheel holding rail. And in the position where the opening part of the rear-wheel restraining rail was formed, a part of rear-wheel is exposed outside from this opening part. When a part of the rear wheel is exposed to the outside from the opening of the rear wheel restraining rail, the rear wheel comes into contact with the end of the operation lever, the operation lever is pressed toward the micro switch, and comes into contact with the micro switch. . Thereby, the micro switch operates to detect the lift of the step, and the escalator operation is stopped.

  Further, there has been proposed a step abnormality detecting device capable of detecting an abnormality of a step when the step is lifted not only at a horizontal portion of the passenger conveyor but also at a position of an inclined portion and a curved portion. That is, the step abnormality detecting device includes a plurality of steps connected endlessly in a passenger conveyor that circulates and moves on a forward path and a return path having a horizontal portion, an inclined portion, and a curved portion. A detection rail that is provided along the rear wheel rail and that is movable along the rear wheel rail, and is provided on the rear wheel side of the step so that the detection rail is lifted when the step is lifted. And a rail movement detecting means for detecting upward movement of the detection rail.

JP 2003-104679 A

  However, the above-described conventional step abnormality detection device installs a micro switch on the rear wheel restraining rail in the upper and lower horizontal part where the step moves, and stops operation of the passenger conveyor when the lift of the step is detected. It does not prevent the lift of the step. Also, in the step abnormality detection device provided with detection means on the entire forward path side where the step moves, that is, the horizontal portion, the inclined portion, and the curved portion, the operation of the passenger conveyor is stopped when the lift of the step is detected, It does not forcibly prevent the steps from lifting up. As described above, the conventional device for preventing the lift of the step does not forcibly prevent the step from being lifted, but stops the operation of the passenger conveyor when the lift occurs.

  The problem to be solved by the present invention is to provide a passenger conveyor that does not lift up on a circulating and moving step in a passenger conveyor such as an escalator or a moving sidewalk.

  The passenger conveyor according to the embodiment of the present invention is disposed on the rear wheel side of the step, and is arranged in parallel with the rear wheel rail over the entire length of the forward wheel side and the rear wheel side locking device having the rear wheel side horizontal portion, A rear wheel lift prevention rail having a rear wheel lift prevention horizontal portion arranged above the rear wheel side horizontal portion with a certain distance from the horizontal portion is provided to prevent the rear wheel lift of the step. It is composed.

It is a general view which shows the outline | summary of an escalator. It is a partial expanded sectional view from the upper horizontal part of an escalator to an inclined part. It is the III-III sectional view taken on the line of FIG.

  Hereinafter, the first embodiment will be described with reference to FIGS.

  As shown in FIG. 1, an escalator E according to an embodiment of the present invention is connected endlessly by a truss 1 that is installed between an upper floor and a lower floor of a building and a chain (not shown). And a plurality of steps 3 that circulate and move, a step drive mechanism (not shown) that circulates and moves the steps 3, a pair of balustrades 4 disposed on both sides of the step 3, and wrapping around the balustrade 4 And a handrail belt 5 that moves. 6 is a boarding board laid in the entrance of the escalator E. The escalator E shown in FIG. 1 carries a user from the lower floor side to the upper floor side as an example. In the figure, A is a horizontal area where the step 3 moves, B is a curved area, and C is It is an inclined part area. An arrow a indicates the forward path side where the step 3 is moved from the lower floor side to the upper floor side with a user on it, and an arrow b indicates that the step 3 is reversed from the upper horizontal area A and moves up the truss 1. The return path side moving from the floor side to the lower floor side is shown.

  Each of the plurality of steps 3 connected endlessly is provided with a front wheel 10 on the front end side of the step 3 (in the direction of arrow a in FIG. 1), and on the rear end side in the direction of travel. Is provided with a rear wheel 11. A front wheel rail 12 is arranged over the entire area of the upper and lower horizontal region A, the upper and lower curved region B and the inclined region C on the forward path side where these steps 3 move, and the front wheel 10 is guided to the front wheel rail 12. It is going to progress.

  A front wheel restraining rail 13 is disposed above the front wheel rail 12 in parallel with the same distance as the diameter of the front wheel 10 so that the vertical displacement of the front wheel 10 can be suppressed. Accordingly, each step 3 travels with its front wheel 10 sandwiched between the front wheel rail 12 and the front wheel restraining rail 13, so that no lifting occurs on the front end side of the step 3.

  On the other hand, a rear wheel rail 14 is arranged in a predetermined positional relationship with respect to the front wheel rail 12, and the rear wheel 11 is supported on the rear wheel rail 14 while being guided to the rear wheel rail 14. It moves on the forward path in a predetermined trajectory. The predetermined positional relationship of the rear wheel rail 14 with respect to the front wheel rail 12 refers to the position of the rear wheel rail 14 to which the rear wheel 11 is guided so that the tread surface of the step 3 is always maintained in a horizontal state. Is set for the front wheel rail 12 to be guided.

  And the rear wheel side latching tool 20 is each arrange | positioned at the rear-wheel 11 side in the some step 3, The rear-wheel lift prevention rail 30 is arrange | positioned under the step 3. As shown in FIG.

  The rear wheel side locking tool 20 is engaged with, for example, a rear wheel side vertical portion 21 fixed to the bottom surface of the rear wheel 11 side of the step 3 by bolting or the like, and a rear wheel lifting prevention rail 30 to be connected to the rear of the step 3. The rear wheel side horizontal portion 22 is configured to prevent the end side from floating.

  The rear wheel lifting prevention rail 30 includes a fixed horizontal portion 31 fixed to the cross beam 40, a vertical portion 32 rising from the fixed horizontal portion 31, and a rear wheel bolted to the vertical portion 32 so as to be adjustable up and down. It is comprised from the floating prevention horizontal part 33. FIG. The rear wheel lifting prevention horizontal portion 33 is arranged over the entire upper and lower horizontal portion areas A, upper and lower curved portion regions B, and inclined portion regions C. The horizontal beam 40 is fixed to the truss 1, and the fixed horizontal portion 31 of the rear wheel lifting prevention rail 30 is bolted together with the rear wheel rail 14.

  The rear wheel lifting prevention horizontal portion 33 is spaced above the rear wheel side horizontal portion 22 of the rear wheel side locking device 20 by a certain distance from the rear wheel side horizontal portion 22, in this embodiment, 4 mm. The rear wheel side horizontal portion 22 is arranged so as not to be displaced by more than 4 mm. As a result, the rear wheel 11 of the step 3 to which the rear wheel side horizontal portion 22 is fixed does not rise above 4 mm.

  With the configuration described above, the front wheel 10 of the step 3 can be prevented from being lifted by the front wheel restraining rail 13, and the rear wheel 11 of the step 3 can be prevented from being lifted by more than 4 mm by the rear wheel lifting prevention rail 30. Therefore, the step 3 does not rise above 4 mm. In addition, if the distance between the rear wheel lift prevention horizontal portion 33 and the rear wheel side horizontal portion 22 in the rear wheel lift prevention rail 30 is changed by adjusting the position of the rear wheel lift prevention horizontal portion 33, the rear wheel 11 The lifting width can be freely limited.

  Although not shown, a micro switch for detecting that the rear-wheel-side horizontal portion 22 is in contact with the rear-wheel lift-preventing horizontal portion 33 is provided on the rear-wheel lift-preventing rail 30, and The operation of the escalator E is stopped when the wheel side horizontal portion 22 comes into contact. Therefore, the safety for the user is improved by preventing the step 3 from being lifted beyond 4 mm, and the operation of the escalator E is stopped when the lift of the step 3 reaches 4 mm. It is possible to improve the property and to minimize damage to the escalator E.

E ......... Escalator A ......... Horizontal area B ......... Curve area C ......... Inclined area a ......... Outward path b ......... Return path 1 ......... Truss 3 ......... Step 4 ......... Railing 5 ... Handrail belt 6 ... Boarding board 10 ... Front wheel 11 of step ... Rear wheel 12 of step ... Front wheel rail 13 ... Front wheel restraining rail 14 ... Rear wheel rail 20 ... Rear wheel side engagement Stopper 21 …… Rear wheel side vertical part 22 …… Rear wheel side horizontal part 30 …… Rear wheel lifting prevention rail 31 …… Fixed horizontal part 32 …… Vertical part 33 …… Rear wheel lifting prevention horizontal part 40 …… Horizontal beam

Claims (3)

A truss installed between the upper and lower floors of the building,
A plurality of steps that are connected endlessly and circulate in a forward path and a return path having a horizontal portion, an inclined portion, and a curved portion, and have front wheels and rear wheels in the moving direction;
A front wheel rail that supports the front wheels and guides the movement of the front wheels;
A front wheel holding rail that sandwiches the front wheel with the front wheel rail to prevent the front wheel from lifting,
A rear rail that supports the rear wheels and guides the movement of the rear wheels;
A wheel side vertical portion after being fixed to the wheel side bottom after the steps, and wheel locking device after having a wheel side horizontal portion after continuous thereunder,
A fixed horizontal part fixed to the truss, a vertical part standing up from the fixed horizontal part, adjustable up and down with respect to the vertical part, and arranged parallel to the rear wheel rail over the entire length of the outward path, a wheel lifting prevention rails after having a wheel lifting prevention horizontal portion after that is disposed above the rear wheel side horizontal section at regular intervals,
A passenger conveyor characterized by comprising:   The passenger conveyor according to claim 1, wherein a constant distance between the rear wheel side horizontal portion and the rear wheel lifting prevention horizontal portion is 4 mm or less.   The passenger conveyor according to claim 1, further comprising a detection device that detects the lifting of the step.

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