CN101157430A - Passenger Conveyor - Google Patents

Abstract

The object of the present invention is to provide a passenger conveyer where the height size of the framework body is reduced. The solution of the present invention is that the depth size of footboard (10) is made as less than three times of the diameter of the traveling wheel (11) supported by an axial support on the footboard (10). A flexible body (36) serves as the power transmission between the reduction gear (30) of the drive (27) and an electric motor (29). The power sprocket (26) which is driven by the drive (27), the reduction gear (30) and the electric motor (29) are arranged according to the longitudinal direction of framework body (3) of the passenger conveyer as seeing from the top.

Description

Passenger Conveyor

This application is based on the divisional application of the patent application whose application number is 200410032954.7, the title of the invention is "passenger conveying device", and the filing date is April 19, 2004.

technical field

The present invention relates to a passenger conveying device for an escalator that produces a level difference between adjacent steps and an electric channel that does not produce a level difference between adjacent steps, and in particular to a passenger conveying device that is suitable for reducing the height of the frame device.

Background technique

Generally, as a structure which reduces the height dimension of a passenger conveying apparatus, especially the height dimension of a frame, the technical proposal of the passenger conveying apparatus disclosed by patent document 1 is proposed, for example.

That is, in the passenger conveying device disclosed in the above-mentioned Patent Document 1, the reduction gear and the driving motor constituting the driving device are arranged laterally to reduce the height dimension of the entire driving device.

Patent Document 1: Japanese Patent Application Laid-Open No. 58-109375 (Figure 5, Figure 6)

According to the prior art described above, the height dimension of the driving device can be reduced. However, even if the height of the driving device is reduced, the height of the passenger conveyor, especially the frame, cannot be reduced if the drive sprocket and the driven sprocket in the pedal steering section are kept the same size.

Contents of the invention

An object of the present invention is to provide a passenger conveyor capable of reducing the height dimension of the frame.

In order to achieve the above object, in the present invention, the depth dimension of the pedal is formed to be 3 times or less than the diameter of the road wheel supported on the pedal, and at the same time, the gear reduction device and the driving device constituting the driving device are connected through a flexible body. Power is transmitted between the motors, and, viewed from a plane, the power sprocket driven by the above-mentioned driving device, the gear reduction device, and the driving motor are arranged along the length direction of the frame of the passenger conveyor.

In the above structure, by arranging the gear reduction unit and the driving motor along the longitudinal direction of the frame in plan view, it is not necessary to stack the gear reduction unit and the driving motor vertically, thereby reducing the height of the driving unit.

In addition, in the above structure, by transmitting power between the gear reduction unit and the driving motor through the flexible body, even if the center of the input shaft of the gear reduction unit and the center of the output shaft of the driving motor are misaligned, the gear One of the reduction gear unit and the driving motor is disposed within a height range of the other. Thus, the height of the driving device can be determined according to the higher one of the gear reduction device and the driving motor, so that an increase in the height of the frame due to the addition of the two heights can be avoided.

In addition, in the above-mentioned structure, by forming the depth dimension of the pedal to be 3 times or less than the diameter of the traveling wheel pivotally supported on the pedal, even if the diameters of the driving sprocket and the driven sprocket are reduced, the There is no interference between adjacent pedals, and as a result, the height dimension of the pedal turning portion can be reduced.

Therefore, the height of the frame can be reduced because the heights of the driving device and the pedal steering section which determine the height of the frame can be reduced.

Description of drawings

Fig. 1 is a schematic longitudinal side view showing a first embodiment of the passenger conveyor of the present invention.

FIG. 2 is an enlarged view showing the vicinity of a drive sprocket in FIG. 1 .

Fig. 3 is a plan view showing the inside of the frame of Fig. 1 .

Detailed ways

The first embodiment of the present invention will be described below based on the electric tunnel shown in FIGS. 1 to 3 .

The motor tunnel 2 provided on the floor surface 1 is configured based on a frame 3 housed in a pit 1P formed on the floor surface 1 . The frame 3 has entrance and exit floors 4A and 4B at the same height as the above-mentioned floor surface 1 respectively at both end portions in the longitudinal direction. .

The drive sprocket 5 has a pair of drive sprockets 5A, 5B fixed on the drive shaft 7 at intervals, and a pair of driven sprockets 6 are also fixed on the rotating shaft 6S.

Both ends of the drive shaft 7 and the rotating shaft 6S are rotatably supported by the frame 3 via bearings 8A and 8B, respectively.

A pair of endlessly connected pedal chains 9 is wound between the pair of driving sprockets 5A, 5B and the pair of driven sprockets 6 , and a plurality of pedals 10 are connected to the pair of pedal chains 9 .

As shown in FIG. 2 , in the pedal 10 , a road wheel 11 is pivotally supported at a fixed position on one side in the depth direction, and is used to hold a bearing of the axle of the pedal road wheel adjacent to the other side end in the depth direction. 12 is provided in a protrusion shape toward the adjacent pedal side. The bearing 12 has a groove that is parallel to the depth direction of the pedal and opens toward the side of the adjacent pedal. The axles of the running wheels of the adjacent pedal are inserted into the groove and can slide. The traveling wheels 11 are guided by guide rails (not shown) provided in the frame 3, and circulate between the two entrance and exit floors 4A, 4B. In addition, the depth dimension L of the above-mentioned step 10 is formed to be three times or less than the diameter Dr of the road wheel 11 . In addition, by setting the depth L of the pedal 10 to three times or less than the diameter Dr of the road wheel 11, the diameter Ds of the driving sprocket 7 and the driven sprocket 6 can be formed to be equal to the diameter of the pedal 10. 2 times or less than the depth dimension L, and 2 times or more than the height dimension H.

In the above-mentioned frame 3 opposite to the two sides of the above-mentioned pedal 10, along the moving direction of the pedal 10, railings 13 are arranged in an upright manner, and the moving handrail 14 can move around its periphery through the guidance of the railing 13.

The moving handrail 14 is driven by a handrail driving device 15 under the railing 13 and moves in the same direction at a speed synchronized with the pedal 10 . The handrail driving device 15 pinches the surface and the back of the above-mentioned mobile handrail 14 by pressing the driving roller 16 and the driven roller 17 . Further, the sprocket 18 is coaxially fixed to the drive roller 16 , and the rotation of the sprocket 18 causes the drive roller 16 to rotate so as to be pressed toward the longitudinal movement roller 17 , thereby driving the moving handrail 14 .

In order to drive the sprocket 18 of the above-mentioned drive roller 16, it is arranged to obtain power from the above-mentioned drive shaft 7. That is, the intermediate shaft 20 pivotally supported on the side closer to the handrail drive device 15 than the drive shaft 7 is provided by the power sprocket 17 for driving the handrail provided between the drive sprockets 5A and 5B of the drive shaft 7 . The intermediate sprocket 21 provided above, the connecting chain 22 wound around these power sprockets 19 and the intermediate sprocket 21, the pair of handrail drive sprockets 23A, 23B provided at both ends of the intermediate shaft 20, And the driving chain 25 wound between the handrail driving sprockets 23A, 23B and the sprocket 18 of the driving roller 16 via a plurality of guide sprockets 24 transmits the power of the driving shaft 7 to the handrail driving device 15 .

On the other hand, as a device for supplying power to the drive shaft 7, there are a power sprocket 26 fixed on the shaft end side than the drive sprocket 5B, a drive device 27, and a connection between the power sprocket 26 and the drive shaft 7. The power transmission chain 28 that transmits power between the devices 27.

The driving device 27 includes a driving motor 29 such as an induction motor and a reduction gear 30 , and is fixed to the frame 3 via a common base 31 . These driving motors 29 and reduction gear 30 are arranged along the length direction of frame 3 when viewed from a plane, and the above-mentioned driving motor 29 has a flywheel 32 and a small pulley 33 on its rotating shaft, and the above-mentioned reduction gear 30 has an input pulley 34 and an output pulley 34. Sprocket 35.

In addition, between the small pulley 33 of the driving motor 29 and the input pulley 34 of the speed reduction device 30, for example, 3 to 4 V-belts 36 are wound, and by winding the power transmission chain 28 wound on the above-mentioned power sprocket 26, It is wound around the output sprocket 35 of the reduction gear 30 so that the power of the drive motor 29 is transmitted to the drive shaft 7 to drive the pedal 10 and the moving handrail 14 .

Also, in this embodiment, in order to transmit the power of the driving motor 29 to the reduction gear 30, the small pulley 33, the input pulley 34, and the V-belt 36 are used, but the present invention is not limited thereto. Chains and toothed belts of flexible bodies for power transmission, and sprockets, pulleys, etc. wound on them are also used.

In addition, a control device 37 is built in the free space in the frame 3 provided with the driving device 27 , and the control device 37 is used to control the operation of the electric channel 2 .

As described above, according to the present embodiment, the driving motor 29 and the reduction gear 30 of the driving device 27 are arranged along the longitudinal direction of the frame 3 so that they do not overlap when viewed from a plane, so that the height dimension of the driving device 27 can be reduced. The height dimension of the frame 3 can be reduced.

In addition, in the prior art, the drive motor 29 and the deceleration device 30 are arranged so that they do not overlap in plan view, and the rotating shaft of the drive motor 29 and the input shaft of the deceleration device 30 are connected or integrated. Technology. However, since the above-mentioned drive motor 29 and the above-mentioned reduction gear unit 30 are different in capacity and shape, the positions in the height direction of the rotation shaft and the input shaft are greatly different. Therefore, after connecting or integrating these shafts, the The height dimension of the drive unit 27 is increased. That is, as shown in FIG. 1 , when the input shaft (input pulley 34 ) of the speed reduction device 30 lower than the rotating shaft (small pulley 33 ) of the driving motor 29 is connected or integrated, it is used as a driving shaft. The flywheel 32 of the auxiliary part of the motor 29 will be located at the position of the flywheel 32S as indicated by the two-dashed line, so as to protrude below the frame 3 . In order to solve the prominent problem, the driving motor 29 and the reduction gear 30 must be respectively supported on a separate base and fixed in the frame 3, and this will complicate the setting of the driving device 27 in the frame 3, A lot of labor is required.

Therefore, it is important to arrange the driving motor 29 and the reduction gear 30 so that they do not overlap in planar view as in this embodiment, and to transmit power through a flexible body.

And, make the small pulley 33 of the driving motor 29 and the input pulley 34 and the output sprocket 35 of the reduction gear 30 face the power sprocket 26 side, and the power transmission chain 28 and the V-belt 36 which are flexible bodies are wound around the power sprocket 26 side. On it, therefore, the rotating parts of the driving motor 29 and the reduction gear 30 are all located on the end side of the width direction of the frame 3. As a result, during the maintenance operation, since the operator does not need to touch the rotating parts, the maintenance time is improved. security.

In addition, by adopting the structure of this embodiment, a speed reduction mechanism can also be formed between the driving motor 29 and the speed reduction device 30. As a result, in cooperation with the speed reduction device 30, a more accurate speed reduction ratio can be obtained, and at the same time Miniaturization of the reduction gear transmission 30 is achieved.

In the above-mentioned embodiments, the electric passageway has been described as an example of the passenger conveyor, but it goes without saying that the present invention can also be applied to an escalator.

That is, in an escalator, if the same driving sprocket and driven sprocket as the prior art are used in the step turning portion, even if the height of the driving device can be reduced, the height of the frame cannot be reduced.

Therefore, in the escalator, by setting the deceleration device and the driving motor as in the above-mentioned embodiment, the moving locus when the step of the running wheel on the upper stage side of the step is pivotally supported is positioned at the drive sprocket and the driven sprocket. The outer peripheral side of the sprocket, and the diameter of these driving sprocket and driven sprocket is formed to be twice or less than the depth of the step, and twice or more than the height of the step, and the size of the step turning part can be reduced. The height dimension of the frame.

(effect of invention)

As described above, with the present invention, it is possible to obtain a passenger conveyor capable of reducing the height dimension of the frame.

Claims (4)

1. A passenger conveying device comprising: a frame provided with an entrance/exit floor at both ends of the longitudinal direction, a pair of drive sprockets arranged at one end of the longitudinal direction in the frame, and another pair of drive sprockets arranged in the longitudinal direction of the frame. A pair of driven sprockets at one end, a pedal chain wound between the driving sprocket and the driven sprocket, a plurality of pedals connected to the pedal chain, traveling wheels arranged on these pedals, and a driving wheel for driving A power applying mechanism of a power sprocket coaxial with the above-mentioned drive sprocket; characterized in that, The depth of the step is formed to be three times or less than the diameter of the road wheel. 2. The passenger conveyor of claim 1, wherein: The above-mentioned power application mechanism has a first speed reduction device and a driving motor provided on a common base, and a second speed reduction device is provided between the first speed reduction device and the driving motor, and the power sprocket, the first It is installed so that the vertical projection of the second reduction gear and the driving motor does not overlap. 3. The passenger conveying device according to claim 1 or 2, wherein the diameter of the driving sprocket is formed to be twice or less than the depth dimension of the pedal, and is twice or twice the height dimension of the pedal above. 4. A passenger conveyor, comprising: a frame provided with an entrance/exit floor at both ends of the length direction, a pair of driving sprockets arranged at one end of the length direction in the frame, and another pair of drive sprockets arranged in the length direction of the frame. A pair of driven sprockets at one end, a pedal chain wound between the driving sprocket and the driven sprocket, a plurality of pedals connected to the pedal chain, traveling wheels arranged on these pedals, and a A power applying mechanism that drives a power sprocket coaxial with the drive sprocket, wherein The diameter of the drive sprocket is formed to be twice or less than the depth of the pedal and twice or more than the height of the pedal.

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