JP5063563B2 - Passenger conveyor and handrail drive device - Google Patents

Description

  The present invention relates to a drive mechanism for a passenger conveyor, in particular a handrail of the passenger conveyor.

  In general, a passenger conveyor that moves passengers on a plurality of treads is connected to endless treadle chains located on the left and right of the treads via shafts provided on the treads, and the treadle chains are connected to two main and sub sprockets. It is configured to move around the tread with a rotational force applied to one of the sprockets. And in order to drive a handrail synchronizing with a tread, the structure which acquires the driving force of a handrail from the chain and sprocket which drive a tread was taken.

  As a conventional technique related to a passenger conveyor that obtains driving force from the tread board chain, techniques described in, for example, Japanese Patent Laid-Open Nos. 2-193886 and 10-310355 are known.

JP-A-2-193886 JP-A-10-310355

  Since the force for driving the sliding handrail has to be increased as the traveling distance becomes longer, the power of the handrail is increased from the main sprocket provided on the drive side described in Patent Document 1. In order to cope with the general method to be obtained, there is a problem that the handrail drive device must be enlarged or the frame must be enlarged.

  There is also a handrail drive method in which power is directly obtained from the treadle chain via a sprocket at the intermediate part. However, since the pitch of the treadle chain is generally about 70 mm and intermittent engagement occurs every 70 mm, pulsation occurs. It's not a good tool.

  Further, as described in Patent Document 2, there is a driving method in which power is obtained from a tread board chain by a dedicated chain at an intermediate portion. In this method, when the protrusion of the dedicated chain meshes with the treadle chain, the protrusion and the chain roller of the treadle chain interfere with each other. However, there is a problem that a contact noise is generated when the protrusion comes into contact with the chain roller.

  An object of the present invention is to provide a comfortable passenger conveyor with less unpleasant pulsation and noise of a handrail driving device.

  In order to achieve the above object, a handrail drive device according to the present invention includes a tread plate that is incorporated in a tread plate chain that is connected endlessly and rotates at a constant interval, and the tread plate that rotates in synchronization with the tread plate chain. A handrail that obtains power from the tread chain of a passenger conveyor that has a balustrade erected along the direction of travel of the passenger and a hand rail provided on the balustrade and moves the hand rail at the same speed as the tread In the drive device, the handrail drive device includes a drive unit and a power unit. The power unit is disposed above the tread chain on the lower travel side, and a slide pin of the power unit is engaged with the tread chain from an orthogonal direction. The power for driving the handrail is obtained.

  Further, the passenger conveyor of the present invention is a frame installed on a building structure, a getting-on / off floor provided at both ends in the longitudinal direction of the frame, main and sub sprockets, wound around the main and sub sprockets, and endless. A pair of left and right treadle chains that are connected and rotated in a shape, a front shaft that is incorporated into the treadle chain at a predetermined interval, a front wheel provided at a side end thereof, and a front shaft that is incorporated into the front shaft and synchronized with the treadle chain. A treadle that rotates, a balustrade that is erected along the longitudinal direction of the frame on both sides in the width direction of the tread, a handrail that moves at the same speed as the tread, and a hand that drives the handrail In a passenger conveyor equipped with a rail drive device, the handrail drive device is composed of a drive unit and a power unit, and the power unit is placed on a step board chain on the lower travel side. Is disposed, the slide pin of the power unit is engaged from a direction perpendicular to the step chain, characterized in that to obtain the power to drive the handrail.

  According to the present invention, even when a passenger conveyor having a long traveling distance is installed, a comfortable passenger conveyor and a handrail driving device with less unpleasant pulsation and noise are provided without increasing the size of the handrail driving device and the frame. it can.

  Hereinafter, an embodiment of a passenger conveyor according to the present invention will be described with reference to the drawings. FIG. 1 is a side view showing an outline of an electric road according to an embodiment of the present invention, FIG. 2 is an enlarged view of a main part showing an embodiment of the present invention, FIG. 3 is a cross-sectional view taken along II, and FIG. It is a power unit enlarged view of a rail drive device.

  As shown in FIG. 1, in the embodiment of the present invention described below, a pair of main sprockets 2 is pivotally supported on one side of both sides in the longitudinal direction of a frame 1 that is horizontally disposed on a passage, and a pair of A sub sprocket 3 is pivotally supported, and a tread chain 5 is wound around the left and right between the main sprocket 2 and the sub sprocket 3. As shown in FIG. 3, a front shaft 7 is connected to the tread plate chain 5 spanned between the left and right main sprockets 2 and the auxiliary sprocket 3, and a front wheel 6 is incorporated at the side end thereof.

  Further, as shown in FIG. 2, a rear shaft 9 is provided on the tread plate 4, and a rear wheel 8 is attached to the rear shaft 9. Then, the vehicle travels on the front and rear wheel rails 10 that guide and support the front wheels 6 and the rear wheels 8. In FIG. 2, the tread plate chain 5 is not shown for the sake of explanation.

  As shown in FIG. 1, the main sprocket 2 is driven by a drive machine 11 via a main sprocket drive chain 12, rotates a tread board chain 5 wound around the main sprocket 2, and is connected to the tread board chain 5. At the same time, the tread board 4 is rotated to convey the passenger.

  On the other hand, a balustrade panel 13 supported by the frame 1 is erected along the moving direction of the tread plate 4, and a handrail 14 is supported on the periphery of the balustrade panel 13 so as to be movable.

  As shown in FIG. 2, the handrail 14 is clamped from above and below by a driving roller constituting a driving unit 15a of a handrail driving device 15 comprising a driving unit 15a and a power unit 15b in the frame 1, thereby driving the handrail. The roller 24 is driven by rotating. As for the driving force of the handrail 14, a power unit 15b is provided on the lower side tread chain 5b, and the slide pin 17 is engaged with the lower side tread chain 5b to obtain the driving force.

  4 is an enlarged view of the power unit. As shown in FIG. 3, two power sprockets 16a and 16b shown in FIG. 4 are provided on a shaft 26 fixed to a base 27, and a power chain is connected to these two power sprockets. 19 is wound. The power chain 19 is provided with a slide plate 18 for each pitch of the lower stepboard chain 5b or an integer multiple thereof. In this way, the slide plate 18 is provided to the power chain 19 at a pitch of the lower step plate chain 5b or every integral multiple thereof, so that the slide pins 17 provided on the slide plate can be securely attached to the lower step plate chain 5b. Can be configured to engage and mesh with each other to transmit power.

  Further, the pitch of the power chain 19 is preferably formed at a pitch equal to or less than the pitch of the tread plate chain 5 when compared with the pitch of the tread plate chain 5. This is because it is possible to satisfactorily prevent pulsation from being generated.

  One of the slide pins 17 is engaged with the chain roller 5c of the lower side tread chain 5b, and the other is provided with a roller 21. The slide pin 17 is engaged with the slide plate 18 at an intermediate portion thereof to obtain the power obtained from the tread chain 5b. Is transmitted to the power chain 19. A roller 20 is attached to the slide plate 18 in order to slide the slide pin 17 without resistance. The roller 20 is configured so that the slide operation of the slide pin 17 can be performed smoothly.

  Four rollers 20 are provided on the slide plate 18 so that one side of the slide pin 17 is supported by the two rollers 20. Since the end of the slide pin 17 engages with the lower side tread chain 5b to drive the power chain 19 via the roller 20, a very large force is applied thereto. At this time, by providing the four rotating bodies on the slide plate 18 in this way, power is transmitted from the lower side tread chain 5b to the power chain 19 while supporting the slide pin 17 receiving a large force so as not to tilt, and the slide plate 18 slides. Smooth sliding movement of the pin 17 can also be supported.

  The roller 21 travels in the guide rail 22, and the locus of the guide rail 22 is not engaged with the lower tread board chain 5 b while the slide pin 17 changes direction from the upper side to the lower side of the power chain 19. Running on the engagement side with the treadle chain 5 so that the treadle chain 5b and the lower side power chain 19 are parallel and the slide pin 17 is gradually engaged with the lower side treadle chain 5b after being in a right angle state. The road is composed of two stages, and the road is connected by a ramp. With such a configuration, the slide pin 17 is inserted vertically with respect to the tread plate chain 5.

  Thereby, the slide pin 17 smoothly enters without interfering with the chain roller 5c of the tread plate chain 5b, obtains power from the lower side tread chain chain 5b, and rotates the power sprockets 16a and 16b through the power chain 19, As shown in FIG. 3, the handrail drive roller 24 of the drive unit 15a provided on the upper side of the lower side tread chain chain 5b from the transmission sprocket 16c provided coaxially with the power sprocket 16a via the handrail drive chain 23 is provided. It rotates and feeds out the handrail 14. That is, the handrail drive device 15 includes a drive unit 15a and a power unit 15b. The drive unit 15a and the power unit 15b transmit the power obtained by the power unit 15b from the transmission sprocket 16c to the handrail drive roller 24. The drive chain 23 is connected.

  FIG. 5 is a cross-sectional view taken along the line II-II in FIG. As shown in the figure, one end of a rail support bracket 28 having a U-shaped cross section is fixed to a base 27, and the guide rail 22 is fixed and supported on the upper and lower sides of the other end side.

  FIG. 6 is a side view showing the outer shape of the front wheel 6 or the rear wheel 8 in this embodiment. In this embodiment, the front wheels 6 and the rear wheels 8 have metal inner wheels 30 around the shafts 7 and 9, and wheels 29 made of rubber or the like are provided on the outer periphery of the wheels. In this embodiment, the inner wheel 30 has a diameter of 60 mm and the wheel 29 has a diameter of 80 mm in this embodiment. When the front wheel 6 and the rear wheel 8 configured as described above are separated from the rubber part of the wheel 29 for some reason, in this embodiment, the shaft 7 sinks downward by about 10 mm. Then, for example, the lower side tread chain 5b to which the front wheel shaft 7 is fixed similarly sinks 10 mm downward. In such a case, in the present embodiment, in consideration of the case where the rubber portion of the front wheel 6 or the rear wheel 8 is peeled off, in the vicinity of the power sprockets 16a and 16b, the sufficient engagement with the slide pin 17 is not possible. As shown in FIG. 3, an auxiliary guide 25 is provided.

  The auxiliary guide 25 supports the shaft 7 from below with the slide pin 17 even if the shaft 7 tries to sink downward, for example, when the rubber part of the wheel 29 is peeled off. Reliable engagement can be maintained.

  7 and 8 are enlarged views of the upper and lower slide pins 17 respectively. Here, the distance L1 between the upper power chain 19 and the guide rail 22 and the distance L2 between the lower power chain 19 and the guide rail 22 are in a relationship of L1> L2. By having such a distance relationship, the lower slide pin 17 is set so as to be engaged with the lower tread chain 5b, while the upper side suppresses the projection amount of the slide pin 17 from the power chain 19 and guides it. It becomes possible to avoid that the slide pin 17 contacts the tread board chain 5 unnecessarily at a portion other than the parallel portion of the rail 22.

  Further, since the slide pin 17 and the lower tread chain 5 b are engaged with each other after the power chain 19 and the tread chain 5 are parallel, the slide pin 17 is engaged with the tread chain 5. Is inserted vertically, it is possible to achieve extremely low noise and to improve operation reliability.

  Thus, the passenger conveyor of the present embodiment is a power unit of the handrail drive device 15 between the upper side and the lower side of the tread chain 5 arranged continuously between the main and sub two sprockets 2 and 3. 15b is provided. The power unit 15b includes a base 27, a shaft 26, a transmission sprocket 16c, power sprockets 16a and 16b, a power chain 19 having a slide pin 17, and a guide rail 22, and engages with a slide plate 18 of the power chain 19. One of the slide pins 17 to be engaged is engaged with the tread plate chain 5 and the other is attached with a roller 21 to be engaged with the guide rail 22 portion. The slide pin 17 travels along the guide rail 22 by the roller 21 and is smoothly engaged with the tread plate chain 5 from the orthogonal direction. As a result, the power sprockets 16a and 16b can obtain a rotation with little fluctuation in speed, and can provide the handrail drive device 15 and the passenger conveyor with less noise by smooth meshing.

  Such a handrail driving device 15 has a longer parallax panel 13 and thus a handrail 14 as the passenger conveyor distance becomes longer, and accordingly, a stronger driving force is required. In addition, it is advantageous in terms of cost and structure to provide one handrail driving device 15 for one passenger conveyor. When a stronger driving force is required along with the distance of the passenger conveyor, the driving unit 15a is lengthened by a method such as increasing the number of rollers that pinch the handrail 14 to increase the driving force. It is good to raise.

  In this embodiment, the passenger conveyor constituted by the frame 1 arranged horizontally on the passage has been described. However, the present invention can be applied even to an inclined passenger conveyor connecting different floors. is there.

It is a side view showing the outline of the electric road by one example of the present invention. It is an enlarged view of the principal part which shows one Example of this invention. It is sectional drawing which follows II. It is a power unit enlarged view of a handrail drive device. It is sectional drawing which follows II-II. It is a side view which shows the external shape of a front wheel and a rear wheel. It is an enlarged view of a high-order side slide pin part. It is an enlarged view of a lower side slide pin part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Frame 2 Main sprocket 3 Sub sprocket 4 Tread plate 5,5a, 5b Tread plate chain 5c Chain roller 6 Front wheel 7 Front shaft 8 Rear wheel 9 Rear shaft 10 Front and rear wheel rail 11 Drive machine 12 Drive chain 13 Railing panel 14 Hand rail 15 Hand rail Drive unit 15a Drive unit 15b Power unit 16a, 16b Power sprocket 16c Transmission sprocket 17 Slide pin 18 Slide plate 19 Power chain 20 Roller 21 Roller 22 Guide rail 23 Hand rail drive chain 24 Hand rail drive roller 25 Auxiliary guide

Claims (9)

  Incorporated into a tread plate chain that is connected endlessly and rotated at a predetermined interval, a tread plate that rotates in synchronization with the tread plate chain, a balustrade erected along the direction of travel of the tread plate, and the balustrade A handrail driving device that obtains power from the tread chain of a passenger conveyor provided with a handrail and moves the handrail at the same speed as the tread. The driving device for the handrail includes a driving unit and a power unit. The power unit is arranged above the tread chain on the lower traveling side, and the slide pin of the power unit is engaged with the tread chain from the orthogonal direction to obtain power for driving the handrail. A handrail drive device for passenger conveyors.   2. The slide according to claim 1, wherein the power unit includes a base, a shaft, a transmission sprocket, a power sprocket, a power chain having a slide pin and a slide plate, and a guide rail, and engages with the slide plate of the power chain. One of the pins is engaged with the tread plate chain, and the other is attached with a roller to be engaged with the guide rail portion.   3. The handrail drive device for a passenger conveyor according to claim 2, wherein the guide rail has two travel paths on the engagement side with the tread plate chain, and is connected by an inclined road therebetween.   3. The guide rail according to claim 2, wherein a distance L1 between the upper guide rail and the power chain and a distance L2 between the lower guide rail and the power chain are in a relationship of L1> L2. Passenger conveyor handrail drive device.   The handrail drive device for a passenger conveyor according to claim 2, wherein four rotating bodies are provided on the slide plate of the power chain.   6. The passenger rail handrail drive device according to claim 2, wherein a pitch of the power chain is equal to or less than a pitch of a tread board chain.   6. A handrail drive for a passenger conveyor according to claim 2, wherein the slide plate and the slide pin provided in the power chain are provided at every pitch of the treadle chain or every integer multiple thereof. apparatus.   6. The passenger conveyor according to claim 2, wherein the slide pin and the lower tread chain are engaged with each other after the power chain and the tread chain are parallel to each other. Handrail drive device.   A frame installed in a building structure, a getting-on / off floor provided at both longitudinal ends of the frame, main and sub sprockets, wound around the main and sub sprockets, connected endlessly, and rotated A pair of left and right treadle chains, a front shaft incorporated in the treadle chain at a predetermined interval, a front wheel provided at a side end thereof, a treadle incorporated in the front shaft and rotated in synchronization with the treadle chain, Passenger conveyor provided on both sides in the width direction of the tread board, standing up along the longitudinal direction of the frame, a handrail moving at the same speed as the tread board, and a handrail driving device for driving the handrail The handrail drive device comprises a drive unit and a power unit, and the power unit is disposed above the treadle chain on the lower travel side. Raidopin engaged from a direction perpendicular to the tread plate chain, the passenger conveyor, characterized in that to obtain the power to drive the handrail.

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