JP2007153523A - Manually driving device of passenger conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manually driving device of a passenger conveyor installable without newly forming a bolt hole, and without causing the axial dislocation of a motive power transmitting means. <P>SOLUTION: The manually driving device (18) is composed of a driven wheel (17) arranged on the output shaft side of a driving devices (9) driving a tread (6) and a moving handrail (8) of the passenger conveyor (1), a support (19) fixed to suspension bolt holes (14A to 14D) of the driving device (9) in maintenance, a driving wheel (20) journaled to this support (19) and positioned so as to coincide with the radial direction of the driven wheel (17), a handle (21) arranged in the driving wheel (20), and the motive power transmitting means (25) transmitting the motive power of the driving wheel (20) to the driven wheel (17). <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an escalator in which a step is formed in an adjacent step board and a manual drive device for an electric road in which an adjacent step plate does not cause a step, and in particular, a driving device of a passenger conveyor is manually driven during a maintenance operation to move a step plate or a moving handrail. The present invention relates to a manual drive device for a passenger conveyor.

  For example, as disclosed in Patent Document 1, a manual drive device that manually drives a passenger conveyor drive device fixes the manual drive device to the main frame during maintenance, and the manual drive device drives the passenger conveyor drive device. It is configured to transmit the power to the vehicle and has been put into practical use.

JP 2000-118940 A

  The conventional manual driving device for a passenger conveyor is provided with a bolt hole for fixing the manual driving device to the main frame in advance during the maintenance operation, and the manual driving device using the bolt hole provided in advance during the maintenance operation. Is installed, and power transmission means such as a chain is wound around the drive device of the passenger conveyor to transmit power. However, if a manufacturing error or assembly error of the main frame, or a deflection of the main frame occurs, the center of the position where the power transmission means is wound on the manual drive device and the drive device of the passenger conveyor is shifted, and the power transmission means is manually operated. It is sometimes seen that the drive device or the drive device of the passenger conveyor is disconnected. Furthermore, a bolt hole for fixing the manual drive device must be newly provided in the main frame, and in that case, a bolt hole must be provided avoiding the installation position on the main frame of passenger conveyor components, Ensuring the installation of a manual drive device was cumbersome.

  An object of the present invention is to provide a manual drive device for a passenger conveyor that can be installed without a center displacement of the power transmission means and without newly providing a bolt hole.

  In order to achieve the above object, the present invention provides a driven wheel provided on the output shaft side of a driving device for driving a footboard and a moving handrail of a passenger conveyor, and a support fixed to a suspension bolt hole of the driving device during maintenance. A driving wheel that is pivotally supported by the support and is positioned in alignment with the radial direction of the driven wheel, a handwheel provided on the driving wheel, and a power transmission means for transmitting the power of the driving wheel to the driven wheel Thus, a manual drive device was constructed.

  As described above, according to the present invention, the manual driving means is installed using the suspension bolt holes provided in the driving device of the passenger conveyor, so that it is not necessary to newly provide the bolt holes. Since the drive unit is installed on the passenger conveyor, it will not be affected by the manufacturing error or assembly error of the main frame, or even if the main frame is bent. Position misalignment does not occur. Therefore, there is no misalignment of the power transmission means, and it is possible to obtain a manual drive device for a passenger conveyor that can be installed without newly providing a bolt hole.

  An embodiment of a manual drive device for a passenger conveyor according to the present invention will be described below based on the manual drive device for an escalator shown in FIGS.

  As shown in FIG. 3, the escalator 1 includes a main frame 2 that is installed to be inclined across the upper and lower floors, and a main drive sprocket 3 and a main driven sprocket 4 that are pivotally supported on the upper and lower ends of the main frame 2. An endless step chain 5 wound between the main drive sprocket 3 and the main driven sprocket 4, a plurality of steps 6 connected to the step chain 5 and having a step plate on a passenger mounting portion, and the main frame 2 A balustrade 7 erected on both sides of the step 6 in the moving direction, a moving handrail 8 guided at the periphery of the balustrade 7 and driven at the same speed as the step 6, and a drive device for driving the main drive sprocket 3. 9 and.

  The drive device 9 includes a drive motor 10, a speed reducer 11, a sprocket 12 fixed to an output shaft (not shown) of the speed reducer 11, and a disc brake provided on the output shaft of the speed reducer 11. And the like. A plurality of suspension bolt holes 14 </ b> A to 14 </ b> D are provided in the upper part of the driving device 9. At the time of assembly, the eye bolts of the suspension bolt holes 14 </ b> A to 14 </ b> D are screwed, and the drive device 9 is passed through the lifting rope through the eye bolts. Is suspended and placed on mounting seats 15A and 15B provided on the main frame 2 and fixed.

  A drive chain 16 is wound between the sprocket 12 of the drive device 9 and the main drive sprocket 3 to move the step 6 and the moving handrail 8.

  By the way, a driven sprocket 17 serving as a driven wheel is pivotally supported on the output shaft of the driving device 9 on the brake 13 side, for example.

  On the other hand, among the suspension bolt holes 14A to 14D provided in the upper part of the drive device 9, for example, two suspension bolt holes 14C and 14D are used to maintain the manual drive device 18 as shown in FIGS. Sometimes installed.

  The handrail drive device 18 is a drive sprocket that is a support wheel 19 fixed to the suspension bolt holes 14C and 14D and a drive wheel that is pivotally supported by the support body 19 and is positioned in the radial direction of the driven sprocket 17. 20 and a handwheel 21 provided on the drive sprocket 20. The support 19 has a mounting seat 22 fixed over the suspension bolt holes 14C and 14D, and a support arm 23 fixed to the mounting seat 22 and supporting the drive sprocket 20. Further, the support arm 23 has a long length in the direction of approaching or separating the drive sprocket 20 so that the shaft 20S of the drive sprocket 20 can be displaced in order to approach or separate the distance between the driven sprocket 17 and the drive sprocket 20. A hole 24 is provided.

  In the above configuration, during normal operation of the escalator 1, the driving device 9 is operated with the driven sprocket 17 mounted while the handrail driving device 18 is removed. Then, the operation of the escalator 1 is stopped during maintenance and the upper part of the space in which the drive device 9 is accommodated is opened. Then, the mounting seat 22 of the manual drive device 18 is fixed to the suspension bolt holes 14C and 14D by fixing means such as bolts. . Then, an endless chain 25 as a power transmission means is wound around the drive sprocket 20 of the manual drive device 18 and the driven sprocket 17 on the drive device 9 side. When the chain 25 is wound, the chain 25 can be easily wound by performing the winding work in a state where the shaft 20S of the drive sprocket 20 is displaced to the position below the elongated hole 24. The shaft 20S is fixed to the elongated hole 24 at a position where tension is applied to the chain 25, thereby completing the winding operation of the chain 25.

  After that, the lining is released against the brake spring (not shown) of the brake 13 to release the brake shoe, and the handle 21 is rotated in this state, whereby the step 6 or the moving handrail 8 driven by the drive device 9 is used. Can be moved the required distance.

  When the chain 25 is extended due to frequent use of the manual drive device 18, when the chain 25 is wound around the drive sprocket 20 and the driven sprocket 17, the shaft 20S of the drive sprocket 20 is The chain elongation can be eliminated by displacing and fixing the fixing position to the long hole 24 to the position side away from the driven sprocket 17.

  As described above, since the manual drive device 18 is installed using the suspension bolt holes 14C and 14D provided in the drive device 9, it is necessary to provide a special bolt hole for attaching the manual drive device 18. There is no. Further, since the installation positions of the suspension bolt holes 14C and 14D and the driven sprocket 17 are determined at the design stage, the installation positions of the suspension bolt holes 14C and 14D and the driven sprocket 17 are used as references. Since the position can be determined, the cores of the drive sprocket 20 and the driven sprocket 17 can be easily matched. Furthermore, since the manual drive device 18 is installed in the drive device 9, even if a manufacturing error or assembly error of the main frame 2, or even if the main frame 2 is bent, the manual drive device 18 and the drive device 9. Therefore, it is possible to avoid the inconvenience that the chain 25 is displaced from the manual driving device 18 or the driving device 9 due to the misalignment of the winding position of the chain 25.

  By the way, although the said embodiment demonstrated the escalator as an example as a passenger conveyor, it cannot be overemphasized that it can apply also to an electric road. Moreover, in the said embodiment, although the manual drive device 18 was fixed using two suspension bolt holes 14C and 14D, you may change suitably the number of suspension bolt holes to be used in consideration of an installation state. Further, the driving sprocket 20 as the driving wheel, the driven sprocket 17 as the driven wheel, and the chain 15 as the power transmission means have been described. However, a pulley or gear may be used as the driving wheel or driven wheel, and a belt or a toothed belt may be used as the power transmission means. Good.

The side view which shows the installation state of the manual drive apparatus of the passenger conveyor by this invention. The figure which looked at the manual drive device of Drawing 1 from the A arrow direction. The schematic side view which shows the normal driving | running state of the escalator which is a passenger conveyor by this invention. The enlarged plan view which shows the drive device of the escalator shown in FIG. FIG. 3 is an enlarged view of a manual driving device shown in FIG. 2. The right view of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Escalator, 2 ... Main frame, 3 ... Main drive sprocket, 6 ... Step, 8 ... Moving handrail, 9 ... Drive apparatus, 10 ... Drive motor, 11 ... Reduction gear, 12 ... Sprocket, 13 ... Brake, 14A -14D ... Suspension bolt hole, 17 ... Driven sprocket, 18 ... Manual drive device, 19 ... Support, 20 ... Drive sprocket, 21 ... Handle, 24 ... Long hole, 25 ... Chain.

Claims (3)

  A follower wheel provided on the output shaft side of the driving device for driving the footboard of the passenger conveyor and the moving handrail, a support fixed to the suspension bolt hole of the driving device at the time of maintenance, and the slave supported by the support. A manual driving device for a passenger conveyor, comprising: a driving wheel positioned in line with a radial direction of the driving wheel; a handwheel provided on the driving wheel; and a power transmission means for transmitting the power of the driving wheel to the driven wheel.   2. A passenger conveyor according to claim 1, wherein said driven wheel is a driven sprocket, said driving wheel is a driving sprocket, and said power transmission means is said driven sprocket and a chain wound around said driving sprocket. Manual drive device.   3. The manual drive device for a passenger conveyor according to claim 1, wherein the support has a position adjusting mechanism for moving a shaft support portion of the drive wheel toward or away from the driven wheel. 4.

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