JP2009274808A - Man conveyor handrail device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a man conveyor handrail device for preventing the occurrence of a difference between the moving speed of steps of an escalator (a man conveyor) and the moving speed of a moving handrail by suppressing the slip between a rotationally driven wheel and the moving handrail, to be caused by a humidity and an atmospheric temperature, while avoiding easy slip of the hand of a user gripping a moving handrail and allowing the user having weak hand gripping force to securely gripping the moving handrail. <P>SOLUTION: The man conveyor handrail device comprises: an endlessly connected moving handrail to be circulated and moved while being guided along the peripheral edge of the rail of the man conveyor; and a handrail side teeth mark formed throughout the total length of the surface of the moving handrail with its uneven face in the longitudinal direction of the moving handrail. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a man conveyor handrail device.

  In a conventional man conveyor handrail device, a main frame having an end portion disposed horizontally and an inclined portion formed in an intermediate portion, a balustrade erected on the main frame, and a peripheral edge of the balustrade are engaged and moved. An escalator comprising: an endless moving handrail, an endlessly connected escalator step that circulates in the main frame, and a drive unit that is provided at an end of the main frame and drives the step. In the above, the rotary drive of the driving handrail is disposed opposite to the groove on the back side of the movable handrail, and the rotational drive of the drive unit is driven to rotate by being wound through a tensioning device provided on the inclined portion of the main frame. There is known an escalator that is driven by pressing a moving handrail between a roller and a lower roller disposed to face the front side of the moving handrail (see, for example, Patent Document 1).

8 and 9 show a conventional man conveyor handrail device similar to that shown in Patent Document 1, wherein 2 is a main frame of the escalator 1, and 3 is an illustration for driving the circulation movement of the steps of the escalator. The drive gear fixed to the drive shaft of the drive machine, 4 is a balustrade erected on the main frame 2 along the left and right sides of the step, and 5 is the step while being guided by the periphery of the balustrade 4 It is an endless moving handrail that circulates synchronously.
8 is an input gear of the handrail drive device, 24 is a handrail drive roller arranged in parallel along the longitudinal direction on the back side of the movable handrail 5, and 12 is the drive gear 3 and the input gear 8. An endless drive machine chain 13 wound around, an endless drive device chain 13 wound around the input gear 8 and the handrail drive roller 24, and 14 along the longitudinal direction on the surface side of the movable handrail 5. The handrail drive roller 24 rotates in a state where the handrail drive roller 24 and the pressure contact roller 14 sandwich the movable handrail 5 so as to move the movable handrail 5. Is driven.

  Further, in the conventional man conveyor handrail device, a large number of uneven portions provided at equal intervals along the length direction on the inner surface of the central portion of the moving handrail, and the inner surface of the central portion of the moving handrail, the gear type And a driven wheel that is disposed on the outer surface of the central portion of the moving handrail and has a roller shape, and is driven to rotate by engaging the teeth of the driving wheel with the concavo-convex portion of the moving handrail. Is known which causes a moving handrail to travel (see, for example, Patent Document 2).

Japanese Utility Model Publication No.59-192084 Japanese Patent Laid-Open No. 04-032491

However, in the conventional man conveyor handrail device disclosed in Patent Document 1, slip occurs between the driving wheel (upper roller) that rotates and the handrail because of humidity and temperature, and the traveling speed of the handrail is low. There is a problem that the rotational speed of the upper roller becomes slower and a difference occurs between the traveling speed of the escalator step and the traveling speed of the handrail.
In the conventional conveyor belt handrail device disclosed in Patent Document 2, vibration generated in the drive wheel in order to run the handrail in a state where the teeth of the rotationally driven drive wheel are directly meshed with the uneven portion of the handrail. Is easily transmitted to the handrail, and the traveling handrail vibrates.
Moreover, in any of the above patent documents, since the outer surface of the handrail (the surface gripped by the user) is smooth, there is a problem that the user's hand gripping the handrail tends to slip with respect to the handrail. This is an important issue especially for users who have weak hand grip because of their age or some kind of handicap.

  The present invention has been made to solve the above-described problems, and suppresses a slip generated between a driving wheel that is rotationally driven and a moving handrail in relation to humidity and air temperature, so that an escalator (man conveyor) is provided. The difference between the moving speed of the step and the moving speed of the moving handrail can be prevented, and the user's hand gripping the moving handrail is less slippery with respect to the moving handrail and the hand gripping force is weak Even a person can obtain a man conveyor handrail device that can securely hold a moving handrail.

  In the man conveyor handrail device according to the present invention, the movable handrail is connected endlessly and circulates while being guided by the peripheral edge of the balustrade of the man conveyor, and the unevenness extends along the length of the surface of the moving handrail. And a handrail-side tooth mold provided in a direction.

  The present invention relates to a man conveyor handrail device, which is connected endlessly and circulates while being guided by the peripheral edge of the balustrade of the man conveyor, and the unevenness extends in the longitudinal direction of the surface of the movable handrail over the entire length of the surface of the handrail. For a user who has a handrail side tooth shape provided and formed for the user hand that grips the moving handrail is difficult to slip with respect to the moving handrail and has a weak hand gripping force In addition, there is an effect that the moving handrail can be securely held.

  The present invention will be described with reference to the accompanying drawings. Throughout the drawings, the same reference numerals indicate the same or corresponding parts, and redundant description thereof will be simplified or omitted as appropriate.

Embodiment 1 FIG.
1 to 4 relate to Embodiment 1 of the present invention. FIG. 1 is a side view of a handrail drive device, FIG. 2 is an enlarged view of a main part of FIG. 1, and FIG. 4 is an exploded perspective view of the handrail drive unit in FIG.
In the figure, reference numeral 2 denotes a main frame of the escalator 1, and a step (not shown) that is connected endlessly and circulates in the main frame 2 is provided. In the main frame 2 below the upper floor side entrance / exit of the escalator 1, a driving machine (not shown) for driving the circulating movement of the steps is stored, and a driving machine gear 3 is provided on a driving shaft of the driving machine. Is fixed.
A balustrade 4 is erected on the main frame 2 along the left and right sides of the step. The balustrade 4 is connected to the outer periphery of the balustrade 4 in an endless manner and guided to the periphery of the balustrade 4 while A moving handrail 5 that circulates synchronously is provided.

Reference numeral 6 denotes a handrail driving device 6 that drives the circular movement of the moving handrail 5 and is configured as follows.
In a position adjacent to the moving handrail 5 in the main frame 2, a pedestal 7 fixed to a part of the component constituting the main frame 2 is disposed, and the surface of the pedestal 7 on the moving handrail side The first input gear 8a is rotatably provided.
The rotation shaft of the first input gear 8a passes through the pedestal 7, and the second input gear 8b is located at the end of the rotation shaft of the first input gear 8a on the side opposite to the first input gear. Is fixed. That is, the second input gear 8b is disposed on the side opposite to the handrail of the pedestal 7 and rotates integrally with the first input gear 8a.
A handrail drive wheel 9 is rotatably provided on the surface of the pedestal 7 on the moving handrail side so as to be positioned on the surface side of the moving handrail 5. A handrail drive gear 10 is disposed on the back side of the pedestal 7 with respect to the handrail drive wheel 9, and the handrail drive wheel 9 and the handrail drive gear 10 are rotated together.
A total of four sets of the handrail drive wheel 9 and the handrail drive gear 10 are arranged in parallel along the longitudinal direction on the surface side of the movable handrail 5. Of the pair of the handrail drive wheel 9 and the handrail drive gear 10, between the second set and the third set and at a position slightly separated from the moving handrail 5, the side of the pedestal 7 opposite to the moving handrail The chain tension adjusting gear 11 is rotatably provided on this surface.
A drive chain 12 is wound endlessly around the drive gear 3 and the first input gear 8a, and the second input gear 8b, the handrail drive gear 10, and the chain tension adjustment gear. 11, a drive device chain 13 is wound endlessly.

Further, a pressure contact for pressing the moving handrail 5 toward the handrail driving wheel 9 so as to be positioned along the longitudinal direction of the back surface side of the moving handrail 5 on the surface of the base 7 on the moving handrail side. A roller 14 is provided.
The pressure roller 14 is attached to a mounting arm 16 fixed to the pedestal 7 via a leaf spring / roller attachment plate 15, and the leaf spring / roller attachment plate 15 attaches the pressure roller 14 to the moving handrail. The pressure roller 14 is urged in the direction of pressing toward the direction 5, and the pressure contact roller 14 is rotatably supported.

FIG. 3 is a cross-sectional view of a handrail drive unit comprising the handrail drive wheel 9 and the pressure roller 14, and FIG. 4 is an exploded perspective view of the handrail drive unit.
A handrail drive gear shaft 17, which is a rotation shaft of the handrail drive gear 10, passes through the pedestal 7, and a bearing cylinder 19 is formed in a through hole portion of the pedestal 7 through which the handrail drive gear shaft 17 is passed. Two bearings 20 that rotatably support the handrail drive gear shaft 17 are provided in the bearing cylinder 19.
In order to position the bearing 20 in the axial direction, a collar 21 is inserted between the two bearings 20, that is, inside, and a retaining ring 22 is fitted outside each of the bearings 20. .
The handrail drive wheel 9 is attached to the end of the handrail drive gear shaft 17 on the side opposite to the handrail drive gear. Here, key grooves are engraved on the outer periphery of the handrail drive gear shaft 17 on the side opposite to the handrail drive gear side and on the inner periphery of the shaft hole formed in the center portion of the handrail drive wheel 9, respectively. When the taper key 18 is press-fitted and fixed in the keyway, the handrail drive wheel 9 is fixed to rotate integrally with the handrail drive gear shaft 17.

  Smooth chevron-shaped irregularities are provided at equal intervals in the longitudinal direction of the movable handrail 5 over the entire length from the surface to the side surface of the movable handrail 5 to form the handrail-side chevron-shaped tooth mold 5a. Yes. The unevenness of the handrail-side chevron-shaped tooth mold 5a has a cross-sectional shape along the longitudinal direction of the movable handrail 5 that exhibits a smooth chevron shape, that is, a wave shape, and corresponds to the wave height of this wave shape. The height dimension and the length dimension corresponding to the wavelength are formed so as to be uniform at any location of the moving handrail 5. The outer periphery of the handrail drive wheel 9 is provided with smooth chevron-like irregularities that mesh with the handrail-side chevron-shaped tooth mold 5a, and the drive wheel-side chevron-shaped tooth mold 9a is formed. Yes.

The rotational drive of the driving machine is transmitted from the driving machine gear 3 to the first input gear 8a through the driving machine chain 12. When the first input gear 8a is rotated, the second input gear 8b is rotated integrally with the first input gear 8a, and the rotation of the second input gear 8b is performed via the drive device chain 13 as described above. It is transmitted to the handrail drive gear 10.
Then, the rotation of the handrail drive gear 10 is transmitted to the handrail drive wheel 9 that rotates integrally with the handrail drive gear shaft 17, and the handrail side chevron-shaped tooth mold 5 a and the drive wheel side are rotated. The circular movement of the movable handrail 5 is driven by the rotation of the handrail drive wheel 9 in a state where the chevron-shaped tooth mold 9a is engaged.
At this time, the pressing roller 14 presses the moving handrail 5 from the back surface thereof toward the handrail driving wheel 9, so that the handrail side chevron tooth shape 5 a and the driving wheel side chevron tooth shape This prevents the meshing with 9a from coming off. The drive device chain 13 is wound around the chain tension adjusting gear 11 so that the tension (tension) is maintained in an appropriate state.

In the man conveyor handrail device configured as described above, the handrail side tooth mold is formed by providing unevenness at equal intervals in the longitudinal direction of the moving handrail over the entire length from the surface to the side of the moving handrail. The user's hand gripping the moving handrail is less likely to slip with respect to the moving handrail, and even the user who has weak hand gripping force can reliably hold the moving handrail.
In addition, a handrail drive wheel having a tooth shape that meshes with the handrail-side tooth mold is disposed on the surface side of the handrail, and the handrail drive wheel is rotated by rotating the handrail drive wheel while these tooth shapes mesh with each other. By driving the movement, it is possible to suppress the slip that occurs between the driving wheel that is driven to rotate due to the humidity and temperature and the moving handrail, and between the moving speed of the escalator step and the moving speed of the moving handrail. It is possible to prevent differences that arise.
In addition, the tooth shape provided on the moving handrail and the handrail drive wheel is a smooth mountain shape, so that the rotation drive is transmitted from the handrail drive wheel to the moving handrail and the user has a good grip comfort of the moving handrail. And both.

In addition, by providing a tooth mold on the surface of the moving handrail, a concave portion is provided on the surface of the moving handrail. Therefore, the weight of the moving handrail can be reduced by the corresponding amount of the concave portion. It is possible to reduce energy consumption related to driving of the handrail.
In addition, although the moving handrail of the escalator was described here, it is needless to say that the present invention can be applied not only to the moving handrail of the escalator but also to general man conveyors such as a traveler.

Embodiment 2. FIG.
FIGS. 5 to 6 relate to the second embodiment of the present invention, FIG. 5 is an enlarged view of a main part corresponding to FIG. 2, FIG. 6 is a sectional view of a handrail drive unit corresponding to FIG. FIG. 4 is an exploded perspective view of a handrail driving unit corresponding to 4.
In Embodiment 2 described here, in the configuration of Embodiment 1 described above, an endless toothed belt having a smooth mountain-shaped tooth pattern is wound around the handrail drive wheel, and this toothed belt is wound. And the tooth shape of the moving handrail are meshed with each other to drive the circulating movement of the moving handrail.
That is, of the four sets of the handrail drive wheel 9 and the handrail drive gear 10 arranged in parallel on the surface side of the movable handrail 5, the first set and the second set of the handrail drive wheels 9. An endless toothed belt 23 is wound around, and a driving wheel meshing tooth mold 23 a provided on the inner periphery of the toothed belt 23 and a belt meshing tooth mold provided on the outer periphery of the handrail driving wheel 9. 9b is engaged.
Similarly, an endless toothed belt 23 is wound around the third and fourth sets of the handrail drive wheels 9, and a drive provided on the inner periphery of the toothed belt 23. The wheel meshing tooth mold 23a and the belt meshing tooth mold 9b provided on the outer periphery of the handrail drive wheel 9 are meshed with each other.
The outer periphery of the toothed belt 23 is provided with smooth chevron-shaped irregularities that mesh with the handrail-side chevron-shaped tooth mold 5a on the surface of the moving handrail 5, and the belt-side chevron-shaped tooth mold 23b. Is formed.
Other configurations are the same as those in the first embodiment.

Also in the second embodiment configured as described above, as in the first embodiment, the rotational drive of the driving machine is performed from the driving machine gear 3 to the first input gear 8 a via the driving machine chain 12. It is told. When the first input gear 8a is rotated, the second input gear 8b is rotated integrally with the first input gear 8a, and the rotation of the second input gear 8b is performed via the drive device chain 13 as described above. It is transmitted to the handrail drive gear 10.
The rotation of the handrail drive gear 10 is transmitted to the handrail drive wheel 9 which rotates together with the handrail drive gear shaft 17, and the teeth wound around the handrail drive wheel 9 are transmitted. The attached belt 23 rotates.
The toothed belt 23 rotates in a state where the belt-side chevron-shaped tooth mold 23b of the toothed belt 23 and the hand-rail chevron-shaped tooth mold 5a of the movable handrail 5 are engaged with each other. Thus, the circular movement of the moving handrail 5 is driven.
At this time, the pressing roller 14 presses the moving handrail 5 from the back surface thereof toward the toothed belt 23, whereby the handrail-side chevron tooth 5a and the belt-side chevron tooth 23b. Is prevented from coming off. The drive device chain 13 is wound around the chain tension adjusting gear 11 so that the tension (tension) is maintained in an appropriate state.

In the man conveyor handrail device configured as described above, the toothed belt is rotated in a state where the tooth pattern of the toothed belt wound around the handrail driving wheel and the tooth pattern of the surface of the moving handrail are engaged with each other. By driving the circulating movement of the moving handrail, the contact area between the toothed belt and the moving handrail is wider than the state in which the handrail driving wheel is driven in direct contact with the moving handrail. In addition to being able to achieve the same effects as in the first aspect, it is possible to improve the power transmission efficiency and make it difficult for vibration generated in the handrail drive wheel to be transmitted to the moving handrail due to the buffering effect of the toothed belt. It is possible.
Moreover, since the power transmission efficiency from the handrail drive device to the moving handrail can be improved, it is possible to reduce the energy consumption related to the driving of the moving handrail.

It is a side view of the handrail drive device in Embodiment 1 of this invention. It is a principal part enlarged view of FIG. 1 in Embodiment 1 of this invention. It is sectional drawing of the handrail drive part in FIG. 2 in Embodiment 1 of this invention. It is a disassembled perspective view of the handrail drive part in FIG. 2 in Embodiment 1 of this invention. It is a principal part enlarged view equivalent to FIG. 2 in Embodiment 2 of this invention. It is sectional drawing of the handrail drive part equivalent to FIG. 3 in Embodiment 2 of this invention. It is a disassembled perspective view of the handrail drive part equivalent to FIG. 4 in Embodiment 2 of this invention. It is a side view of the conventional handrail drive device. It is a principal part enlarged view of FIG. 8 in the past.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Escalator 2 Main frame 3 Drive gear 4 Railing 5 Moving handrail 5a Handrail side mountain-shaped tooth type 6 Handrail drive device 7 Base 8 Input gear 8a First input gear 8b Second input gear 9 Handrail drive wheel 9a Drive wheel Side chevron-shaped teeth 9b Belt meshing teeth 10 Handrail drive gear 11 Chain tension adjusting gear 12 Drive chain 13 Drive device chain 14 Pressure roller 15 Leaf spring / roller mounting plate 16 Mounting arm 17 Handrail drive gear shaft 18 Taper key DESCRIPTION OF SYMBOLS 19 Bearing cylinder 20 Bearing 21 Collar 22 Retaining ring 23 Toothed belt 23a Driving wheel meshing tooth type 23b Belt side mountain-shaped tooth type 24 Handrail driving roller

Claims (8)

A moving handrail connected endlessly and circulating while being guided by the periphery of the balustrade of the man conveyor,
A man conveyor handrail device comprising: a handrail side tooth mold formed so that irregularities are provided in the longitudinal direction of the movable handrail over the entire length of the surface of the movable handrail.   The said handrail side tooth type | mold is provided from the surface of the said moving handrail to the side surface, The man conveyor handrail apparatus of Claim 1 characterized by the above-mentioned. A handrail driving device that drives the circulating movement of the movable handrail in a state of meshing with the handrail side tooth mold;
3. The man conveyor handrail device according to claim 1, wherein the handrail side tooth pattern is formed with irregularities provided at equal intervals in a longitudinal direction of the moving handrail. . The handrail driving device includes:
A handrail drive wheel disposed on the surface side of the moving handrail;
4. The man conveyor handrail device according to claim 3, further comprising: a drive wheel side tooth shape provided on an outer periphery of the handrail drive wheel and meshing with the handrail side tooth shape. The handrail driving device includes:
A plurality of handrail drive wheels arranged in parallel along the longitudinal direction of the surface side of the moving handrail,
An endless toothed belt wound around at least two of the plurality of handrail drive wheels;
4. The man conveyor handrail device according to claim 3, further comprising: a belt-side tooth mold that is provided on an outer periphery of the toothed belt and meshes with the handrail-side tooth mold. 5. The handrail-side tooth mold is a handrail-side chevron tooth pattern in which smooth chevron-shaped irregularities are provided at equal intervals in the longitudinal direction of the movable handrail over the entire length of the surface of the movable handrail. ,
5. The drive wheel side tooth profile is a drive wheel side tooth profile formed by providing smooth mountain-shaped irregularities that mesh with the handrail side tooth profile. Man conveyor handrail device. The handrail-side tooth mold is a handrail-side chevron tooth pattern in which smooth chevron-shaped irregularities are provided at equal intervals in the longitudinal direction of the movable handrail over the entire length of the surface of the movable handrail. ,
6. The man conveyor according to claim 5, wherein the belt-side tooth mold is a belt-side chevron-shaped tooth mold formed by providing smooth chevron-shaped irregularities that mesh with the handrail-side tooth mold. Handrail device.   The said handrail drive device is arrange | positioned on the back surface side of the said movable handrail, and was provided with the press-contact roller which presses the said movable handrail toward the said handrail drive wheel. The man conveyor handrail device described in 1.

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