CN222063816U - Chain guide device and handrail drive device for passenger conveyor - Google Patents
Chain guide device and handrail drive device for passenger conveyor Download PDFInfo
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- CN222063816U CN222063816U CN202323108070.2U CN202323108070U CN222063816U CN 222063816 U CN222063816 U CN 222063816U CN 202323108070 U CN202323108070 U CN 202323108070U CN 222063816 U CN222063816 U CN 222063816U
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Abstract
本实用新型涉及乘客输送机的链条引导装置以及扶手带驱动装置。实施方式的乘客输送机的链条引导装置具备托架、惰轮以及按压板。惰轮包括惰轮链轮以及从惰轮链轮朝向托架突出的凸台。按压板相对于惰轮的旋转中心配置在比凸台靠半径方向外侧的位置，并且从托架朝向惰轮链轮延伸。按压板包括最接近惰轮链轮的接近部分。沿着旋转中心轴线的方向上的惰轮链轮与按压板的接近部分之间的间隙尺寸小于扶手链条的宽度尺寸。
The utility model relates to a chain guide device and a handrail belt driving device of a passenger conveyor. The chain guide device of the passenger conveyor of the embodiment includes a bracket, an idler wheel and a pressing plate. The idler wheel includes an idler sprocket and a boss protruding from the idler sprocket toward the bracket. The pressing plate is arranged at a position radially outside of the boss relative to the rotation center of the idler wheel, and extends from the bracket toward the idler sprocket. The pressing plate includes a proximity portion closest to the idler sprocket. The gap dimension between the idler sprocket and the proximity portion of the pressing plate in the direction along the rotation center axis is smaller than the width dimension of the handrail chain.
Description
Technical Field
Embodiments relate to a chain guide device of a passenger conveyor and a handrail belt driving device.
Background
A handrail belt drive for driving a handrail belt of a passenger conveyor is known. The handrail belt driving device includes an endless handrail chain, a driving sprocket, and a driving roller. The handrail chain is wound on the driving sprocket and the driving roller. The drive device transmits a drive force to the drive sprocket, and the handrail chain is circulated by rotation of the drive sprocket. Then, the driving roller is rotationally driven, and the handrail belt is circulated together with the steps.
The endless movement of the handrail chain is guided by an idler pulley. The idler includes an idler sprocket around which an armrest chain is wound, and a boss protruding from the idler sprocket to one side. When the handrail chain is separated from the idler sprocket toward the boss side, the handrail chain can continue to move in a circulating manner while being wound around the boss. In this case, it is conceivable that the handrail chain may be damaged.
Disclosure of utility model
The chain guide device of the passenger conveyor according to the embodiment is a device for guiding the endless movement of the handrail chain that drives the handrail belt. The chain guide device of the passenger conveyor is provided with a bracket, an idler wheel rotatably supported by the bracket, and a pressing plate supported by the bracket. The idler comprises: idler wheel chain wheel, winding handrail chain; and a boss protruding from the idler sprocket toward the bracket along a rotation center axis of the idler sprocket. The pressing plate is disposed radially outward of the boss with respect to the rotation center of the idler pulley and extends from the bracket toward the idler pulley. The pressing plate includes a proximal portion closest to the idler sprocket. The gap dimension between the idler sprocket and the approaching portion of the pressing plate in the direction along the rotational center axis is smaller than the width dimension of the handrail chain.
In the chain guide device of the passenger conveyor of the embodiment, the minimum gap dimension between the boss and the pressing plate is smaller than the height dimension of the handrail chain as viewed along the rotation center axis.
The chain guide device of the passenger conveyor according to the embodiment is a device for guiding the endless movement of the handrail chain that drives the handrail belt. The chain guide device of the passenger conveyor is provided with a bracket, an idler wheel rotatably supported by the bracket, and a pressing plate supported by the bracket. The idler comprises: idler wheel chain wheel, winding handrail chain; and a boss protruding from the idler sprocket toward the bracket along a rotation center axis of the idler sprocket. The pressing plate is disposed radially outward of the boss with respect to the rotation center of the idler pulley and extends from the bracket toward the idler pulley. The minimum gap dimension between the boss and the pressing plate is smaller than the height dimension of the handrail chain as viewed along the rotation center axis.
In the chain guide device of the passenger conveyor of the embodiment, the normal direction of the pressing plate is along the radial direction of the idler pulley.
In the chain guide device of the passenger conveyor according to the embodiment, the bracket includes a long hole extending in the predetermined direction, and the chain guide device of the passenger conveyor is configured to be capable of adjusting the tension of the handrail chain.
In the chain guide device of the passenger conveyor of the embodiment, the bracket and the pressing plate are formed of a single member.
The handrail driving device of the passenger conveyor of the embodiment is a device that drives a handrail. The handrail belt driving device of the passenger conveyor comprises: an endless handrail chain; the handrail drives the sprocket, make the handrail chain circulate and move; a driving roller that rotates by the endless movement of the handrail chain and drives the handrail belt; and a chain guide device of the passenger conveyor for guiding the endless movement of the handrail chain.
Drawings
Fig. 1 is a diagram showing an overall schematic configuration of a passenger conveyor including a handrail drive device according to the present embodiment.
Fig. 2 is an enlarged view illustrating the handrail driving device of fig. 1.
Fig. 3 is a plan view showing the 1 st chain guide of fig. 2.
Fig. 4 is a front view showing the 1 st chain guide of fig. 2.
Fig. 5 is an enlarged partial plan view showing the handrail chain of fig. 2.
Fig. 6 is a partially enlarged front view showing the handrail chain of fig. 2.
Fig. 7 is a front view showing the 2 nd chain guide of fig. 2.
Fig. 8 is a bottom view showing the 2 nd chain guide of fig. 5.
Detailed Description
The chain guide device and the handrail belt drive device of the passenger conveyor according to the present embodiment will be described below with reference to the drawings.
First, a passenger conveyor 1 according to the present embodiment will be described with reference to fig. 1. The escalator is described as an example of the passenger conveyor 1, but the passenger conveyor 1 of the present embodiment may be a moving walk.
As shown in fig. 1, the passenger conveyor 1 includes a plurality of steps 2, a pair of balustrades 3, a pair of skirt guards 4, a pair of handrails 5, a driving device 6, and a pair of handrail belt driving devices 20.
The steps 2 are connected by an endless step chain 7. The steps 2 are guided by a guide rail, not shown, and circulated between the two landing doors 8. The landing entrance may be the upper landing entrance 8 or the lower landing entrance 8. The landing entrance is a landing entrance 8 on the opposite side of the landing entrance. In the present embodiment, an example will be described in which the movement direction of the steps 2 is a direction from the lower landing entrance 8 toward the upper landing entrance 8, and passengers are transported from the lower floor to the upper floor. However, the movement direction of the steps 2 may be a direction from the upper landing entrance 8 toward the lower landing entrance 8, and passengers may be transported from the upper floor to the lower floor.
The balustrade 3 is arranged on the left and right sides of the steps 2 in an upright manner. The balustrade 3 extends from one landing entrance 8 to the other landing entrance 8 in such a manner as to follow the moving direction of the steps 2.
A skirt guard 4 is provided at a lower portion of each rail 3 and extends along the rail 3. The steps 2 move between a pair of skirt guards 4.
The handrail belt 5 moves along a handrail track 9 provided at the upper part of the balustrade 3. The handrail belt 5 reaching the upper landing port 8 enters the skirt guard 4, and moves toward the lower landing port 8 inside the skirt guard 4. The handrail belt 5 reaching the lower landing port 8 is sent out from the skirt panel 4, and moves toward the upper landing port 8 again along the handrail rail 9. Thus, the handrail belt 5 is circulated. The endless movement of the handrail belt 5 is synchronized with the endless movement of the steps 2.
The drive means 6 cyclically moves the steps 2. The driving device 6 may include a motor 6a and a reduction gear, not shown.
The configuration of circulating the steps 2 will be described more specifically. The step chain 7 is disposed inside a truss 10 provided under the floor of a building. An upper machine room 11 is provided on the upper layer side of the truss 10, and the upper machine room 11 houses the driving device 6 and a driving sprocket 12 driven by the driving device 6. A lower machine chamber 13 is provided on the lower layer side of the truss 10, and a driven sprocket 14 is accommodated in the lower machine chamber 13. The step chain 7 is wound around the drive sprocket 12 and the driven sprocket 14. When the driving device 6 is driven, the upper driving sprocket 12 rotates, and the step chain 7 moves in a cycle. In this way, the steps 2 circulate between the upper landing entrance 8 and the lower landing entrance 8 to transport passengers.
Next, the handrail driving device 20 according to the present embodiment will be described with reference to fig. 2. The handrail driving device 20 is a device that drives the corresponding handrail 5.
The handrail belt driving device 20 includes an endless handrail chain 21, a handrail driving sprocket 22, a plurality of driving rollers 23, a plurality of pressing rollers 24, and two chain guides 30 and 40. The handrail driving device 20 is disposed inside the corresponding skirt panel 4.
The handrail drive sprocket 22 receives a driving force from the drive sprocket 12 of the driving device 6 and rotates. A handrail chain 21 is wound around a handrail drive sprocket 22. When the handrail drive sprocket 22 rotates, the handrail chain 21 moves cyclically in synchronization with the step chain 7.
The driving roller 23 includes a driving roller sprocket 23a, and the handrail chain 21 is wound around the driving roller sprocket 23 a. When the handrail chain 21 is circulated, the driving roller 23 rotates while abutting against the handrail belt, and the handrail belt 5 is circulated. In the example shown in fig. 2, an example in which the handrail belt 5 is circulated by 4 driving rollers 23 is described, but the number of driving rollers 23 is arbitrary. The 4 driving rollers 23 are aligned along the moving direction of the handrail belt 5. A fixed sprocket 25 is disposed between the two drive rollers 23 located at the center.
The pressing roller 24 is opposed to the driving roller 23. The handrail belt 5 is sandwiched between the pressing roller 24 and the driving roller 23. The pressing roller 24 is configured to press the handrail belt 5 against the driving roller 23. For example, the pressing roller 24 may be pressed toward the driving roller 23 by the urging force of the spring 26. Thereby, the friction between the driving roller 23 and the handrail belt 5 is increased, and the rotating driving roller 23 moves the handrail belt 5 by the friction.
Next, the chain guide devices 30 and 40 according to the present embodiment will be described with reference to fig. 3 to 8. The chain guide devices 30 and 40 guide the endless movement of the handrail chain 21 that drives the handrail belt 5. The two chain guide devices 30, 40 include a1 st chain guide device 30 and a2 nd chain guide device 40. The 1 st chain guide device 30 has a function of adjusting the tension of the handrail chain 21. The 2 nd chain guide 40 does not have a function of adjusting the tension of the handrail chain 21. The 1 st chain guide 30 is located closer to the drive roller 23 than the 2 nd chain guide 40.
As shown in fig. 3 and 4, the 1 st chain guide device 30 includes a1 st bracket 31, a1 st idler pulley 32, and a1 st pressing plate 33.
The 1 st bracket 31 may include a pair of 1 st base portions 31a and 1 st support portions 31b. The 1 st base portion 31a is a portion to be attached to the 1 st fixing member 15 fixed to the building. The 1 st fixing member 15 is provided with a long hole 31c into which the bolt 17 is inserted. The long hole 31c is formed in an elongated shape so as to extend in the lateral direction. The position of the 1 st bracket 31 can be adjusted in the lateral direction within the range of the lateral dimension of the long hole 31c. Thus, the 1 st bracket 31 is configured to be able to adjust the tension applied to the handrail chain 21. As shown in fig. 4, two long holes 31c may be formed in one 1 st base portion 31a, and 1 long hole 31c may be formed in the other 1 st base portion 31 a. The number of the long holes 31c formed in each 1 st base portion 31a is arbitrary.
As shown in fig. 4, the 1 st bearing 31b is a portion that supports the 1 st idler 32. The 1 st support portion 31b is formed in a U shape when viewed from above, and the 1 st idler pulley 32 is housed in a space defined by the 1 st support portion 31 b. The 1 st support portion 31b is disposed between the pair of 1 st base portions 31 a. The 1 st support portion 31b is provided with a 1 st through hole 31d into which a 1 st rotation shaft 32c described later of the 1 st idler pulley 32 is inserted.
The 1 st base portion 31a and the 1 st support portion 31b may be formed of a single member. For example, the 1 st base portion 31a and the 1 st support portion 31b may be integrally formed by bending.
The 1 st idler pulley 32 is rotatably supported by the 1 st bracket 31. The 1 st idler 32 includes a1 st idler sprocket 32a, a1 st boss 32b, and a1 st rotation shaft 32c that wind up the handrail chain 21. The 1 st boss 32b protrudes from the 1 st idler sprocket 32a toward the 1 st support portion 31b of the 1 st bracket 31 along the rotation center axis 32x of the 1 st idler sprocket 32 a. The 1 st rotation shaft 32c protrudes from the 1 st boss 32b toward the 1 st support portion 31b of the 1 st bracket 31, and is inserted into the 1 st through hole 31 d. The 1 st idler sprocket 32a, the 1 st boss 32b, and the 1 st rotation shaft 32c are concentrically formed and are integrally rotatable. The portion protruding from the 1 st idler sprocket 32a may not be formed on the opposite side of the 1 st idler sprocket 32a from the 1 st boss 32 b.
The 1 st pressing plate 33 is supported by the 1 st bracket 31. As shown in fig. 4, the 1 st pressing plate 33 is disposed radially outward of the 1 st boss 32b with respect to the rotation center 32o of the 1 st idler pulley 32. The 1 st pressing plate 33 may be disposed obliquely upward with respect to the 1 st boss 32 b. The 1 st pressing plate 33 may be formed in a plate shape along a horizontal plane. As shown in fig. 3, the 1 st pressing plate 33 extends from the 1 st bracket 31 toward the 1 st idler sprocket 32 a. More specifically, the 1 st pressing plate 33 is connected to the 1 st support portion 31b, and is disposed at a corner of the 1 st support portion 31 b.
The 1 st pressing plate 33 may be formed as a member different from the 1 st bracket 31 and may be joined to the 1 st bracket 31. For example, the 1 st pressing plate 33 may be joined to the 1 st bracket 31 by welding, bonding, or the like. However, the 1 st bracket 31 and the 1 st pressing plate 33 may be formed of a single member. For example, the 1 st bracket 31 and the 1 st pressing plate 33 may be integrally formed by bending. In this case, the 1 st pressing plate 33 can be easily formed.
The 1 st pressing plate 33 includes a 1 st approaching portion 33a closest to the 1 st idler sprocket 32 a. The gap between the 1 st pressing plate 33 and the 1 st idler sprocket 32a becomes smallest between the 1 st approaching portion 33a and the 1 st idler sprocket 32 a. The 1 st approaching portion 33a is a portion of the 1 st pressing plate 33 having the smallest three-dimensional distance from the 1 st idler sprocket 32 a.
As shown in fig. 3, the gap dimension B1 between the 1 st idler sprocket 32a and the 1 st approaching portion 33a of the 1 st pressing plate 33 may be smaller than the width dimension D (see fig. 5) of the handrail chain 21 in the direction along the rotation center axis 32 x.
The width dimension D of the handrail chain 21 is defined as shown in fig. 5. That is, the handrail chain 21 is constituted by a pair of plates 21b coupled by a pin 21 a. The roller 21c is interposed between the pair of plates 21b, and is configured to be smoothly engaged with and disengaged from each sprocket. The distance between the outer surface of one plate 21b and the outer surface of the other plate 21b of the pair of plates 21b opposed to each other is defined as a width dimension D. The handrail chain 21 is configured such that a pair of plates 21b having a large width and a pair of plates 21b having a small width are alternately connected, but the width D may be defined by the pair of plates 21b having a large width.
As shown in fig. 4, the minimum gap dimension A1 between the 1 st boss 32b and the 1 st pressing plate 33 may be smaller than the height dimension H (see fig. 6) of the handrail chain 21 as viewed along the rotation center axis 32 x. The minimum gap dimension A1 may be the minimum distance between the 1 st boss 32b and the 1 st pressing plate 33 as viewed along the rotation center axis 32 x. The minimum gap dimension A1 may be a dimension along the radial direction with respect to the rotation center 32 o.
The height dimension H of the handrail chain 21 is defined as shown in fig. 6. That is, the handrail chain 21 is configured such that the plates 21b having a large height and the plates 21b having a small height are alternately connected, but the height H may be defined by the plates 21b having a large height.
As shown in fig. 7 and 8, the 2 nd chain guide 40 includes a2 nd bracket 41, a2 nd idler 42, and a2 nd pressing plate 43.
The 2 nd bracket 41 may include a2 nd base portion 41a and a2 nd support portion 41b. The 2 nd base portion 41a is a portion to be attached to the 2 nd fixing member 16 fixed to the building. The 2 nd fixing member 16 is provided with a circular hole 41c into which the bolt 18 is inserted. The circular hole 41c has a circular planar shape. The 2 nd bearing 41b is a portion that supports the 2 nd idler 42. The 2 nd bracket 41 is formed in an L-shape when viewed from above, and the 2 nd idler pulley 42 is housed in a space defined by the 2 nd bracket 41. The 2 nd support portion 41b is provided with a2 nd through hole 41d into which a2 nd rotation shaft 42c described later of the 2 nd idler gear 42 is inserted.
The 2 nd base portion 41a and the 2 nd support portion 41b may be formed of a single member. For example, the 2 nd base portion 41a and the 2 nd support portion 41b may be integrally formed by bending.
As shown in fig. 8, the 2 nd idler pulley 42 is rotatably supported by the 2 nd bracket 41. The 2 nd idler 42 includes a 2 nd idler sprocket 42a, a 2 nd boss 42b, and a 2 nd rotation shaft 42c around which the handrail chain 21 is wound. The 2 nd boss 42b protrudes from the 2 nd idler sprocket 42a toward the 2 nd support portion 41b of the 2 nd bracket 41 along the rotation center axis 42x of the 2 nd idler sprocket 42a. The 2 nd rotation shaft 42c protrudes from the 2 nd boss 42b toward the 2 nd support portion 41b of the 2 nd bracket 41, and is inserted into the 2 nd through hole 41 d. The 2 nd idler sprocket 42a, the 2 nd boss 42b, and the 2 nd rotation shaft 42c are concentrically formed and are integrally rotatable. The portion protruding from the 2 nd idler sprocket 42a may not be formed on the opposite side of the 2 nd idler sprocket 42a from the 2 nd boss 42 b.
As shown in fig. 7, the 2 nd pressing plate 43 is disposed radially outward of the 2 nd boss 42b with respect to the rotation center 42o of the 2 nd idler gear 42. The normal direction of the 2 nd pressing plate 43 may be along the radial direction of the 2 nd idler wheel 42. The normal direction is a direction perpendicular to the main surface of the 2 nd pressing plate 43, and corresponds to the up-down direction shown in fig. 7. The 2 nd pressing plate 43 may be disposed below the 2 nd boss 42 b. The 2 nd pressing plate 43 may be formed in a plate shape along a horizontal plane. As shown in fig. 8, the 2 nd pressing plate 43 extends from the 2 nd bracket 41 toward the 2 nd idler sprocket 42 a. More specifically, the 2 nd pressing plate 43 is connected to the 2 nd base portion 41a and the 2 nd support portion 41 b.
The 2 nd pressing plate 43 may be formed as a member different from the 2 nd bracket 41 and may be joined to the 2 nd bracket 41. For example, the 2 nd pressing plate 43 is joined to the 2 nd bracket 41 by welding, bonding, or the like. However, the 2 nd bracket 41 and the 2 nd pressing plate 43 may be formed of a single member. For example, the 2 nd bracket 41 and the 2 nd pressing plate 43 may be integrally formed by bending. In this case, the 2 nd pressing plate 43 can be easily formed.
The 2 nd pressing plate 43 includes a2 nd approaching portion 43a closest to the 2 nd idler sprocket 42 a. The gap between the 2 nd pressing plate 43 and the 2 nd idler sprocket 42a becomes smallest between the 2 nd approaching portion 43a and the 2 nd idler sprocket 42 a. The 2 nd approaching portion 43a is a portion of the 2 nd pressing plate 43 having the smallest three-dimensional distance from the 2 nd idler sprocket 42 a.
As shown in fig. 8, the gap dimension B2 between the 2 nd idler sprocket 42a and the 2 nd approaching portion 43a of the 2 nd pressing plate 43 in the direction along the rotation center axis 42x may be smaller than the width dimension D (see fig. 5) of the handrail chain 21.
As shown in fig. 7, the minimum gap dimension A2 between the 2 nd boss 42b and the 2 nd pressing plate 43 may be smaller than the height dimension H (see fig. 6) of the handrail chain 21 when viewed along the rotation center axis 42 x. The minimum gap dimension A2 may also be the minimum distance between the 2 nd boss 42b and the 2 nd pressing plate 43 when viewed along the rotation center axis 42 x. The minimum gap dimension A2 may be a dimension along the radial direction with respect to the rotation center 42 o.
Next, a case will be described in which the handrail 5 is circulated by the handrail driving device 20 according to the present embodiment.
In this case, the drive device 6 shown in fig. 1 drives the drive sprocket 12 to rotate, and the handrail drive sprocket 22 of the handrail belt drive device 20 is driven to rotate. The handrail chain 21 is circulated by the rotation of the handrail drive sprocket 22, and the driving roller 23 is driven to rotate. Thereby, the handrail belt 5 interposed between the driving roller 23 and the pressing roller 24 is circulated.
The handrail chain 21 is wound around the 1 st idler sprocket 32a of the 1 st chain guide 30, and guides the endless movement of the handrail chain 21. The tension of the handrail chain 21 is adjusted by adjusting the lateral position of the 1 st bracket 31 of the 1 st chain guide device 30 with respect to the 1 st fixing member 15. This enables smooth circulation movement of the handrail chain 21. A1 st pressing plate 33 supported by the 1 st bracket 31 is disposed near the handrail chain 21 wound around the 1 st idler sprocket 32 a.
As described above, the gap dimension B1 between the 1 st idler sprocket 32a and the 1 st approaching portion 33a of the 1 st pressing plate 33 is smaller than the width dimension D of the handrail chain 21 in the direction along the rotation center axis 32 x. This prevents the handrail chain 21 from passing through the gap between the 1 st boss 32b and the 1 st pressing plate 33. Therefore, the arm chain 21 can be prevented from coming off from the 1 st idler sprocket 32a to the 1 st boss 32b side. On the other hand, the minimum gap dimension A1 between the 1 st boss 32b and the 1 st pressing plate 33 is smaller than the height dimension H of the handrail chain 21 as viewed along the rotation center axis 32 x. This prevents the handrail chain 21 from passing through the gap between the 1 st boss 32b and the 1 st pressing plate 33. Therefore, the arm chain 21 can be prevented from coming off from the 1 st idler sprocket 32a to the 1 st boss 32b side.
Here, a case will be described in which the 1 st pressing plate 33 is not provided in the 1 st bracket 31. When the handrail chain 21 is disengaged from the 1 st idler sprocket 32a to the 1 st boss 32b side, the handrail chain 21 can continue to circulate while being wound around the 1 st boss 32 b. In this case, it is considered that the handrail chain 21 may be damaged.
In contrast, in the present embodiment, as described above, the 1 st pressing plate 33 prevents the handrail chain 21 from being separated from the 1 st idler sprocket 32a to the 1 st boss 32b side. This prevents the handrail chain 21 from continuing to circulate while being disengaged from the 1 st idler sprocket 32 a. Therefore, the handrail chain 21 can be prevented from being damaged. When the handrail chain 21 is separated from the 1 st idler sprocket 32a to the opposite side of the 1 st boss 32b, the tension of the handrail chain 21 is greatly reduced. Therefore, the circulation movement of the handrail chain 21 is difficult to continue, and the circulation movement of the handrail chain 21 is stopped.
The handrail chain 21 is wound around a 2 nd idler sprocket 42a of the 2 nd chain guide 40, and guides the endless movement of the handrail chain 21. A 2 nd pressing plate 43 supported by the 2 nd bracket 41 is disposed near the handrail chain 21 wound around the 2 nd idler sprocket 42 a.
As described above, the gap dimension B2 between the 2 nd idler sprocket 42a and the 2 nd approaching portion 43a of the 2 nd pressing plate 43 in the direction along the rotation center axis 42x is smaller than the width dimension D of the handrail chain 21 described above. This prevents the handrail chain 21 from passing through the gap between the 2 nd idler sprocket 42a and the 2 nd pressing plate 43. Therefore, the handrail chain 21 can be prevented from coming off from the 2 nd idler sprocket 42a to the 2 nd boss 42b side. On the other hand, the minimum gap dimension A2 between the 2 nd boss 42b and the 2 nd pressing plate 43 is smaller than the height dimension H of the handrail chain 21 as viewed along the rotation center axis 42 x. Thus, the handrail chain 21 hardly passes through the gap between the 2 nd boss 42b and the 2 nd pressing plate 43. Therefore, the handrail chain 21 can be prevented from coming off from the 2 nd idler sprocket 42a to the 2 nd boss 42b side.
Here, a case will be described in which the 2 nd pressing plate 43 is not provided in the 2 nd bracket 41. When the handrail chain 21 is disengaged from the 2 nd idler sprocket 42a to the 2 nd boss 42b side, the handrail chain 21 can continue to circulate while being wound around the 2 nd boss 42 b. In this case, it is considered that the handrail chain 21 may be damaged.
In contrast, in the present embodiment, as described above, the 2 nd pressing plate 43 can prevent the handrail chain 21 from being separated from the 2 nd idler sprocket 42a to the 2 nd boss 42b side. This prevents the handrail chain 21 from continuing to circulate while being disengaged from the 2 nd idler sprocket 42 a. Therefore, the handrail chain 21 can be prevented from being damaged. When the handrail chain 21 is separated from the 2 nd idler sprocket 42a to the opposite side of the 2 nd boss 42b, the tension of the handrail chain 21 is greatly reduced. Therefore, the circulation movement of the handrail chain 21 is difficult to continue, and the circulation movement of the handrail chain 21 is stopped.
As such, according to the present embodiment, the gap dimension B1 between the 1 st idler sprocket 32a and the 1 st approaching portion 33a of the 1 st pressing plate 33 is smaller than the width dimension D of the handrail chain 21 in the direction along the rotation center axis 32 x. This prevents the handrail chain 21 from continuing to circulate while being disengaged from the 1 st idler sprocket 32 a. Therefore, the handrail chain 21 can be prevented from being damaged, and the reliability can be improved.
Further, according to the present embodiment, the minimum gap dimension A1 between the 1 st boss 32b and the 1 st pressing plate 33 is smaller than the height dimension H of the handrail chain 21 as viewed along the rotation center axis 32 x. This prevents the handrail chain 21 from continuing to circulate while being disengaged from the 1 st idler sprocket 32 a. Therefore, the handrail chain 21 can be prevented from being damaged, and the reliability can be improved.
Further, according to the present embodiment, the gap dimension B2 between the 2 nd idler sprocket 42a and the 2 nd approaching portion 43a of the 2 nd pressing plate 43 in the direction along the rotation center axis 42x is smaller than the width dimension D of the handrail chain 21 described above. This prevents the handrail chain 21 from continuing to circulate while being disengaged from the 2 nd idler sprocket 42 a. Therefore, the handrail chain 21 can be prevented from being damaged, and the reliability can be improved.
Further, according to the present embodiment, the minimum gap dimension A2 between the 2 nd boss 42b and the 2 nd pressing plate 43 is smaller than the height dimension H of the handrail chain 21 as viewed along the rotation center axis 42 x. This prevents the handrail chain 21 from continuing to circulate while being disengaged from the 2 nd idler sprocket 42 a. Therefore, the handrail chain 21 can be prevented from being damaged, and the reliability can be improved.
Further, according to the present embodiment, the normal direction of the 2 nd pressing plate 43 of the 2 nd chain guide 40 is along the radial direction of the 2 nd idler pulley 42. This can increase the area of the 2 nd pressing plate 43 covering the 2 nd boss 42b from the radially outer side. Therefore, the arm chain 21 can be effectively prevented from coming off from the 2 nd idler sprocket 42a to the 2 nd boss 42b side.
Further, according to the present embodiment, the 1 st bracket 31 of the 1 st chain guide device 30 includes a long hole 31c extending in the lateral direction. Thereby, the lateral position of the 1 st chain guide 30 can be adjusted, and the tension applied to the handrail chain 21 can be adjusted.
According to the above embodiment, the handrail chain 21 can be prevented from being damaged, and the reliability can be improved.
While the present utility model has been described with reference to several embodiments, these embodiments are presented by way of example and are not intended to limit the scope of the utility model. These novel embodiments can be implemented in various other modes, and various omissions, substitutions, and changes can be made without departing from the scope of the utility model. These embodiments and modifications thereof are included in the scope and gist of the utility model, and are included in the utility model described in the claims and the scope equivalent thereto.
Claims (8)
1. A chain guide device for a passenger conveyor guides endless movement of an endless handrail chain that drives a handrail belt, the chain guide device comprising:
a bracket;
an idler rotatably supported by the bracket; and
A pressing plate supported by the bracket,
The idler comprises: idler wheel chain wheel, roll up the above-mentioned handrail chain; and a boss protruding from the idler sprocket toward the bracket along a rotation center axis of the idler sprocket,
The pressing plate is disposed radially outward of the boss with respect to the rotation center of the idler pulley, and extends from the bracket toward the idler pulley,
The pressing plate includes a proximal portion closest to the idler sprocket,
The gap between the idler sprocket and the approaching portion of the pressing plate in the direction along the rotation center axis is smaller than the width of the handrail chain.
2. The chain guide device of a passenger conveyor according to claim 1, wherein,
The minimum gap dimension between the boss and the pressing plate is smaller than the height dimension of the handrail chain when viewed along the rotation center axis.
3. The chain guide device of a passenger conveyor according to claim 1 or 2, wherein,
The bracket includes a long hole extending along a prescribed direction,
The chain guide device of the passenger conveyor is configured to be capable of adjusting the tension of the handrail chain.
4. The chain guide device of a passenger conveyor according to claim 1 or 2, wherein,
The bracket and the pressing plate are formed of a single member.
5. A chain guide device for a passenger conveyor guides endless movement of an endless handrail chain that drives a handrail belt, the chain guide device comprising:
a bracket;
an idler rotatably supported by the bracket; and
A pressing plate supported by the bracket,
The idler comprises: idler wheel chain wheel for winding the above-mentioned handrail chain; and a boss protruding from the idler sprocket toward the bracket along a rotation center axis of the idler sprocket,
The pressing plate is disposed radially outward of the boss with respect to the rotation center of the idler pulley, and extends from the bracket toward the idler pulley,
The minimum gap dimension between the boss and the pressing plate is smaller than the height dimension of the handrail chain when viewed along the rotation center axis.
6. The chain guide device of a passenger conveyor according to claim 5, wherein,
The normal direction of the pressing plate is along the radial direction of the idler wheel.
7. The chain guide device of a passenger conveyor according to claim 5, wherein,
The bracket and the pressing plate are formed of a single member.
8. A handrail belt driving device for a passenger conveyor, which drives a handrail belt, comprises:
An endless handrail chain;
A handrail driving sprocket for circularly moving the handrail chain;
A driving roller that rotates by the endless movement of the handrail chain and drives the handrail belt;
The chain guide apparatus of a passenger conveyor according to any one of claims 1 to 5, wherein the endless movement of the handrail chain is guided.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022186814A JP7344364B1 (en) | 2022-11-22 | 2022-11-22 | Passenger conveyor chain guide device and handrail belt drive device |
| JP2022-186814 | 2022-11-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222063816U true CN222063816U (en) | 2024-11-26 |
Family
ID=87934779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323108070.2U Active CN222063816U (en) | 2022-11-22 | 2023-11-16 | Chain guide device and handrail drive device for passenger conveyor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7344364B1 (en) |
| CN (1) | CN222063816U (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0640686A (en) * | 1992-07-21 | 1994-02-15 | Hitachi Ltd | Chain driver |
| JP2007045537A (en) * | 2005-08-08 | 2007-02-22 | Mitsubishi Electric Corp | Passenger conveyor |
-
2022
- 2022-11-22 JP JP2022186814A patent/JP7344364B1/en active Active
-
2023
- 2023-11-16 CN CN202323108070.2U patent/CN222063816U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2024075395A (en) | 2024-06-03 |
| JP7344364B1 (en) | 2023-09-13 |
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