JP6453423B1 - Handrail belt for passenger conveyor and passenger conveyor using the same - Google Patents

Abstract

Provided are a handrail belt for a passenger conveyor that can provide excellent mechanical efficiency and a passenger conveyor using the same.
An embodiment of the present invention is an endless handrail belt for a passenger conveyor that travels on a guide rail provided on an upper part of a balustrade of a passenger conveyor and has an approximately C-shaped cross section. A flat portion made of a member, a pair of left and right curved portions made of a hard member harder than the soft member, and a soft member connected to the lower surface of the curved portion. A handrail belt for a passenger conveyor, which is disposed in a groove formed by a handrail belt main body having a pair of left and right jaw ends, and a pair of left and right curved portions and the flat portion, and has a driving belt made of a flat belt. is there.
[Selection] Figure 2

Description

  Embodiments of the present invention relate to a handrail belt for a passenger conveyor and a passenger conveyor using the same.

  Conventionally, a handrail belt drive mechanism having a drive roller and a pressure roller has been used as a mechanism for circulating and moving a handrail belt in a passenger conveyor. The drive roller and the pressure roller are arranged at positions where the handrail belt is sandwiched from the upper and lower surfaces, and the handrail belt pressed against the pressure roller is pressed against the drive roller. When the driving roller is rotationally driven in a state where the handrail belt is pressed against the driving roller, a driving force is transmitted from the driving roller to the handrail belt, and the handrail belt is circulated and moved by the transmitted driving force.

JP 2004-269155 A JP 2007-182273 A

  However, when such a handrail belt circulates, the running resistance may increase due to contact with other members, and there is room for further improvement in mechanical efficiency.

  Therefore, in view of the above problems, an embodiment of the present invention aims to provide a handrail belt for a passenger conveyor that can obtain excellent mechanical efficiency and a passenger conveyor using the same.

  An embodiment of the present invention is an endless handrail belt for a passenger conveyor that travels on a guide rail provided at an upper part of a balustrade of a passenger conveyor and has a substantially C-shaped cross section, and is a plane made of a soft member. A pair of left and right curved portions made of a hard member harder than the soft member, and a pair of left and right jaws made of the soft member connected to the lower surface of the curved portion. It is a handrail belt for passenger conveyors which has a drive belt which is arranged in a groove formed by a handrail belt body having an end portion, a pair of left and right curved portions and the flat portion, and which is a flat belt.

It is explanatory drawing seen from the side of the escalator which shows one Embodiment of this invention. It is sectional drawing which shows the handrail belt main body and drive belt of one Embodiment of this invention. It is a side view which shows a belt drive device. It is a principal part side view of an upper floor curved part. It is sectional drawing in the AA of FIG. It is a principal part side view of a lower floor curved part. It is sectional drawing in the BB line of FIG. It is a principal part side view which shows the state of the return path of a handrail belt. FIG. 9 is a partial cross-sectional view taken along line CC in FIG. 8. It is sectional drawing which shows the example of a change of the handrail belt main body of one Embodiment of this invention.

  Hereinafter, the escalator 100 of one Embodiment of this invention is demonstrated based on FIGS. In the following description, it is assumed that the escalator 100 is rising.

(1) Escalator 100
The structure of the escalator 100 will be described with reference to FIG.

  As shown in FIG. 1, an escalator 100 circulates and moves a truss 1 installed between a lower floor and an upper floor of a building, a plurality of steps 2 connected endlessly and circulated, and the steps 2 A step drive device 3, a pair of left and right balustrades 4 disposed on both sides of the step 2, and a handrail belt 50 that wraps around the balustrade 4 and circulates.

  The handrail belt 50 includes a handrail belt body 5 and a drive belt 6 disposed inside the handrail belt body 5. The escalator 100 includes a belt drive device 7 that drives the drive belt 6. doing.

  The plurality of steps 2 are connected endlessly by being attached to the step chain 8.

  The step driving device 3 rotationally drives the step sprocket 9a disposed below the boarding board at the entrance on the upper floor, the step sprocket 9b disposed below the boarding board at the entrance on the lower floor, and the step sprocket 9a. And an electric motor 10 to be operated. A step chain 8 is stretched between the step sprocket 9a and the step sprocket 9b, and the electric motor 10 is driven to rotate the step sprocket 9a. When the step sprocket 9a is driven to rotate, the step chain 8 circulates and moves between the step sprocket 9a and the step sprocket 9b, and the step 2 attached to the step chain 8 also circulates and moves together.

  Two sprockets of a first sprocket 12 and a second sprocket 13 are connected to the rotating shaft 11 of the step sprocket 9a. A chain 15 is stretched between the first sprocket 12 and a sprocket 14 provided in the electric motor 10. A chain 17 is stretched between the second sprocket 13 and a sprocket 16 provided for transmitting a driving force to the belt driving device 7.

  The pair of left and right balustrades 4 are arranged on both sides of the step 2 that stands on the truss 1 and faces each other in parallel and circulates. A guide rail 18 and a guide roller 19 are provided at the peripheral edge of the balustrade 4 for guiding the drive belt 6 and the handrail belt body 5 that circulate and move. The guide roller 19 is provided on the entire circumference of the guide rail 18 except for the lower floor curved portion 41 described later.

(2) Structure of handrail belt body 5 The structure of the handrail belt body 5 will be described with reference to FIG.

  As shown in FIG. 2, the handrail belt body 5 is a belt having a C-shaped cross section, and is disposed along a guide rail 18 (see FIG. 1) provided on the balustrade 4. The outer peripheral surface of the handrail belt body 5 is a portion where a passenger puts a hand, and the handrail belt body 5 circulates and moves in synchronization with the steps 2.

  The handrail belt main body 5 is formed of a soft member whose upper surface is gently curved and connected to both ends of the lower surface side of the flat portion 54 and is made of a hard member harder than the soft member used for the flat portion 54. It consists of a pair of left and right curved portions 53 and a pair of left and right jaw ends 55 made of a soft member connected to the lower surface 52 of the curved portion 53. Further, the outer end portion of the flat upper surface 51 connected to the flat portion 54 of the curved portion 53 is exposed as the outer peripheral surface of the handrail belt body 5. Further, the inner peripheral surface of the handrail belt main body 5 has a groove portion 56 formed along the traveling direction by the end portions of the pair of left and right curved portions 53 and the flat portion 54. Both side portions of the groove 56 are chamfered to form inclined surfaces 57.

  The material of the hard member and the hard member is not particularly limited, but is preferably urethane rubber or chlorosulfonated polyethylene rubber.

  Here, for example, in the case of urethane rubber, it is preferable that the hardness of the soft member measured by JIS Z2246 (Shore hardness test-test method) is molded so as to be 90 Hs or less. Is preferably molded so as to be 80 Hs or higher and relatively harder than the soft member.

(3) Structure of the drive belt 6 The drive belt 6 is a flat belt disposed between the guide rail 18 and the handrail belt body 5, and as shown in FIG. 2, steel disposed at predetermined intervals in the width direction. A cord 64 and a covering rubber 65 covering the steel cord 64 are provided, and a canvas portion 61 is provided on a surface of the covering rubber 65 that contacts the handrail belt body 5, and a surface opposite to the canvas portion 61 is made of resin. A resin covering portion 62 made of a material and a protrusion 63 having a trapezoidal cross section integrally formed with the resin covering portion 62 are provided along the traveling direction.

  As shown in FIGS. 4 to 7, the canvas portion 61 is in contact with the groove portion 56 of the handrail belt body 5, and the resin coating portion 62 is in contact with the guide roller 19. Further, the resin coating 62 may contact the guide rail 18 in some cases. The drive belt 6 is circulated and moved by being driven by the belt drive device 7, and transmits a driving force to the handrail belt body 5 in a region where the drive belt 6 contacts the handrail belt body 5, so that the drive belt 6 and the handrail belt body 5 are synchronized. It moves cyclically. And since the drive belt 6 is distribute | arranged inside the handrail belt main body 5 and is accommodated in the lower part of the balustrade 4 and the inside of the guide rail 18, it is not exposed outside.

(4) Structure of Belt Drive Device 7 The structure of the belt drive device 7 will be described with reference to FIG.

  As shown in FIG. 3, the belt driving device 7 has a driving roller 20 and a pressure roller 21 in a plurality of sets. The driving roller 20 is rotated by being brought into contact with the canvas portion 61 of the driving belt 6. The pressure roller 21 is a pressure body that is disposed at a position sandwiching the drive belt 6 by the drive roller 20 and presses the resin coating portion 62 of the drive belt 6. A spring 22 capable of adjusting the biasing force is attached to the pressure roller 21, and the pressure roller 21 presses the drive belt 6 toward the drive roller 20 by the biasing force of the spring 22.

  The pressure roller 21 and the spring 22 are arranged at a lower part of the balustrade 4 and are arranged at a position where a hand can reach from the outside of the balustrade 4 by removing a part of the balustrade 4 called an inner ledge.

  The canvas portion 61 in contact with the drive roller 20 in the drive belt 6 is a surface in contact with the groove portion 56 of the handrail belt body 5 as described above, and has a large friction coefficient.

  On the other hand, the resin coating portion 62 that contacts the pressure roller 21 in the drive belt 6 is a surface that contacts the guide rail 18 and the guide roller 19 as described above, and has a smooth surface and contacts the drive roller 20. This surface has a smaller frictional force than that of the canvas portion 61.

  A sprocket 20b is coaxially connected to the rotation shaft 20a of each drive roller 20, and a chain 27 is formed between the sprocket 20b, the sprocket 24 connected to the rotation shaft 23a of the gear 23, and the sprockets 25 and 26. It is being handed over. A spring 26 a for applying tension to the chain 27 is attached to the sprocket 26. The gear 23 meshes with the gear 28, and the sprocket 16 is connected to the rotation shaft 28 a of the gear 28.

  When the electric motor 10 is driven, the driving force from the electric motor 10 is transmitted to the sprocket 16 via the chain 15, the sprockets 12, 13 and the chain 17, and the sprocket 16 and the gear 28 rotate together. As the gear 28 rotates, the gear 23 that meshes with the gear 28 rotates together with the sprocket 24. The rotation of the sprocket 24 is transmitted to the sprocket 20b through the chain 27, and the drive roller 20 is rotationally driven integrally with the sprocket 20b. When the driving roller 20 is rotationally driven, a driving force is transmitted to the driving belt 6 in contact with the driving roller 20, and the driving belt 6 circulates and moves.

(5) Operation State of Belt Driving Device 7 The operation of the belt driving device 7 will be described with reference to FIGS.

  When the electric motor 10 is driven, the step driving device 3 and the belt driving device 7 are driven. When the step driving device 3 is driven, the step 2 circulates and moves. When the belt driving device 7 is driven, the driving belt 6 circulates and moves. As the drive belt 6 circulates, the handrail belt body 5 circulates and moves integrally with the drive belt 6. The step drive device 3 and the belt drive device 7 have the same speed of movement as the step 2 and the drive belt 6 in terms of the diameters of the sprockets 12, 13 and 16, the number of teeth of the gears 23 and 28, and the number of teeth of the sprockets 24 and 20b. It is set to cycle.

  In the belt driving device 7, the driving roller 20 that transmits the driving force to the driving belt 6 is in contact with the canvas portion 61 of the driving belt 6. For this reason, the driving belt 6 and the driving roller 20 are unlikely to slip at the contact portion, and the driving force from the driving roller 20 to the driving belt 6 can be transmitted favorably.

  The contact portion between the drive belt 6 and the handrail belt main body 5 is a surface having a high friction coefficient of the canvas portion 61 of the drive belt 6 that contacts the groove portion 56 of the handrail belt main body 5, and the drive belt 6 and the handrail belt. The main body 5 is in contact with a large area along the circulating movement direction. Therefore, the canvas portion 61 of the drive belt 6 and the groove portion 56 of the handrail belt body 5 can be brought into contact with each other, so that the drive force can be transmitted from the drive belt 6 to the handrail belt body 5 favorably. The main body 5 can be circulated and moved integrally without causing a slip at the contact portion.

  Further, the resin coating portion 62 that contacts the pressure roller 21 in the drive belt 6 has a smooth surface, and when the drive belt 6 circulates, the resin coating portion 62 contacts the guide rail 18 or the guide roller 19. . For this reason, it is possible to suppress the occurrence of sliding contact noise when the resin coating 62 contacts the guide rail 18 and the rolling noise of the guide roller 19 when the resin coating 62 contacts the guide roller 19. Even when the guide rail 18 has a joint, the resin-coated portion 62 having a smooth surface can pass through the joint smoothly, so that even if the drive belt 6 passes through the joint of the guide rail 18, it is large. No sliding noise is generated.

(6) Structure of Upper Floor Curved Part 40 Next, the structure of the upper floor curved part 40 will be described with reference to FIGS. 1, 4, and 5.

  As shown in FIG. 1, the upper floor bending portion 40 is a portion that, when viewed from the lower floor side to the upper floor side, curves from the inclined state on the upper floor side and shifts to the horizontal state. Means. FIG. 4 is an enlarged view of a main part of the upper floor bending portion 40, and FIG. 5 is a cross-sectional view taken along the line AA in FIG.

  In the upper floor bending portion 40, the handrail belt 50 needs to be curved so that the passenger can put his hand and drive smoothly. The traveling structure will be described.

  As shown in FIGS. 4 and 5, a guide rail 18 is provided on the upper part of the balustrade 4 formed of a thick glass plate. The guide rail 18 is fixed to the upper end portion of the balustrade 4, and the upper end portion extends on both sides to form a flange portion 44. The jaw portion 58 formed of the curved portion 53 and the jaw end portion 55 at both ends of the C-type handrail belt body 5 is attached so as to cover the pair of left and right flange portions 44.

  As shown in FIGS. 4 and 5, a guide roller 19 including a pair of left and right rollers 30 is rotatably provided on the guide rail 18 in the upper floor bending portion 40. The drive belt 6 is guided by the guide roller 19 while being housed in the groove 56 of the handrail belt body 5. The guide roller 19 abuts on the resin coating 62 of the drive belt 6, and the protrusion 63 of the drive belt 6 travels between the left and right rollers 30.

(7) Structure of Lower Floor Curved Part 41 Next, the structure of the lower floor curved part 41 will be described with reference to FIGS. 1, 6, and 7.

  As shown in FIG. 1, the lower-floor curved portion 41 means a portion that curves and inclines from the horizontal state on the lower floor side when the balustrade 4 is viewed from the lower floor side to the upper floor side. 6 is an enlarged view of a main part of the lower floor curved portion 41, and FIG. 7 is a cross-sectional view taken along line BB in FIG.

  In the lower-level curved portion 41, the handrail belt 50 needs to be curved so that passengers can put their hands and drive smoothly, while the drive belt 6 is housed inside the guide rail 18 and therefore has friction. It is necessary to have a structure that allows it to run without any problems. The traveling structure will be described.

  As shown in FIGS. 6 and 7, a guide rail 18 is provided on the upper part of the balustrade 4 formed of a thick glass plate. The guide rail 18 is fixed to the upper end portion of the balustrade 4, and the upper end portion extends on both sides to form a flange portion 44. The jaw portion 58 formed of the curved portion 53 and the jaw end portion 55 at both ends of the C-type handrail belt body 5 is attached so as to cover the pair of left and right flange portions 44.

  As shown in FIG. 6, guide rollers 19 are rotatably provided on the guide rails 18 on the upper floor side and the lower floor side of the lower floor bending portion 41. The drive belt 6 is guided by the guide roller 19 while being housed in the groove 56 of the handrail belt body 5. The guide roller 19 abuts on the resin coating portion 62 of the drive belt 6, and the protrusion 63 of the drive belt 6 travels between the left and right rollers 30 of the guide roller 19.

  As shown in FIG. 6, the guide rail 18 in the lower floor curved portion 41 includes a large diameter roller 32, and a rubber roller 31 having a smaller diameter than the large diameter roller 32 on the upper floor side and the lower floor side of the large diameter roller 32. Are rotatably provided. The rubber roller 31 is in contact with the large diameter roller 32 and the handrail belt body 5 and guides the handrail belt body 5. The drive belt 6 contacts the lower side of the large diameter roller 32 and is guided by the large diameter roller 32. That is, in the lower floor bending portion 41, the drive belt 6 travels away from the handrail belt body 5. The large diameter roller 32 may be a drum type roller.

(8) Operational State of Handrail Belt 50 on Return Path 42 Next, the structure of the return path 42 of the handrail belt 50 will be described based on FIGS. 1, 8, and 9.

  As shown in FIG. 1, the return path 42 means a portion where the handrail belt 50 travels on the guide rail 18 of the balustrade 4 and then enters the truss 1 and goes from the upper floor side to the lower floor side. FIG. 8 is an enlarged view of a main part of the return path 42, and FIG.

  As shown in FIG. 8, on the return path 42, the drive belt 6 travels in the truss 1 with tension applied, and the handrail belt body 5 guides to the return path guide roller 45 with almost no tension applied. Has been.

  As shown in FIG. 9, both end portions 45 a of the return path guide roller 45 are in contact with the outer end portion of the upper surface 51 exposed on the outer peripheral surface of the handrail belt main body 5 to be guided. The central portion 45 b of the return path guide roller 45 has a smaller diameter than both end portions 45 a and is not in contact with the outer peripheral surface of the handrail belt body 5. Further, a brush 46 for cleaning the outer peripheral surface of the handrail belt body 5 is provided on the outer peripheral surface of the central portion 45 b of the return path guide roller 45.

(9) Effects According to the present embodiment, the upper floor curved portion 40 and the lower floor are formed by the soft rails other than the curved portion 53 that contacts the flange portion 44 provided on the balustrade 4 in the handrail belt body 5. Since the handrail belt body 5 is easily bent and extended at the curved portion 41 and the like, the frictional resistance due to the contact between the handrail belt body 5 and the flange portion 44 of the guide rail 18 is reduced, and excellent mechanical efficiency is obtained. .

  In the return path 42, the central portion 45 b of the return path guide roller 45 does not contact the outer peripheral surface of the handrail belt main body 5, and both end portions 45 a contact and guide the hard member exposed on the outer peripheral surface of the handrail belt main body 5. The rolling resistance of the handrail belt body 5 on the return path 42 can be reduced. Furthermore, since the return path guide roller 45 has the brush 46 at the center part 45b, the outer peripheral surface of the handrail belt body 5 can be cleaned.

  In the lower curved portion 41, the drive belt 6 travels away from the handrail belt body 5 and contacts the lower surface of the large-diameter roller 32, so that the handrail belt body 5 is not lifted by the tension of the drive belt 6. The contact between the jaw portion 58 of the handrail belt body 5 and the flange portion 44 of the guide rail 18 can be suppressed, and excellent mechanical efficiency can be obtained. At other positions, the driving belt 6 is guided by the guide roller 19 while being housed in the groove 56 of the handrail belt body 5, and the guide roller 19 contacts the resin coating portion 62 of the driving belt 6. The projecting portion 63 of the drive belt 6 travels between the left and right rollers 30 of the guide roller 19, so that even if the passenger leans against the handrail belt 50, the projecting portion 63 is transverse to the roller 30 Since it is supported, the contact between the handrail belt 50 and the flange portion 44 of the guide rail 18 can be suppressed.

(10) Modified Example In the above embodiment, as shown in FIG. 2, the pair of left and right curved portions 53 made of a hard member has been completely separated on the left and right, and formed as a separate member. Without being limited thereto, as shown in FIG. 10, the pair of left and right curved portions 53 may be integrally formed by being connected via a connecting portion 59 made of the same hard member.

  Moreover, in the said embodiment, although demonstrated applying to the escalator 10, you may replace with this and may apply to the moving sidewalk.

  Although one embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 100 ... Escalator, 1 ... Truss, 2 ... Step, 3 ... Step drive device, 4 ... Railing, 5 ... Handrail belt body, 6 ... Drive belt, 7 ... Belt drive device 8 ... Step chain 9a ... Step sprocket 9b ... Step sprocket 10 ... Electric motor 11 ... Rotary shaft 12 ... First sprocket 13 ... Second sprocket, 14 ... sprocket, 15 ... chain, 16 ... sprocket, 17 ... chain, 18 ... guide rail, 19 ... guide roller, 20 ... drive roller, 20a ... rotating shaft, 20b ... sprocket, 21 ... pressure roller, 22 ... spring, 23 ... gear, 23a ... rotating shaft, 24, 25, 26 ... sprocket, 26a ... Spring, 27 ... chi 28 ... gear, 28a ... rotation shaft, 30 ... roller, 31 ... rubber roller, 32 ... large diameter roller, 40 ... upper curve, 41 ... lower floor Curved part, 42 ... Return path of handrail belt, 44 ... Flange part, 45 ... Return path guide roller, 45a ... Both ends, 45b ... Center part, 46 ... Brush, 51 ... -Upper surface, 52 ... lower surface, 53 ... curved portion, 54 ... flat surface portion, 55 ... jaw end, 56 ... groove portion, 57 ... inclined surface, 58 ... jaw portion , 59 ... connecting part, 61 ... canvas part, 62 ... resin coating part, 63 ... projecting part, 64 ... steel cord, 65 ... covering rubber

Claims (9)

It is a handrail belt for an endless passenger conveyor that travels on a guide rail provided at the upper part of the balustrade of a passenger conveyor and has a substantially C-shaped cross section,
A flat portion made of a soft member;
A pair of left and right curved portions made of a hard member harder than the soft member, connected to both lower end portions of the flat portion,
A handrail belt body having a pair of left and right jaw ends made of the soft member connected to a lower surface of the curved portion;
A handrail belt for a passenger conveyor that has a drive belt that is a flat belt and is disposed in a groove formed by a pair of left and right curved portions and the flat portion.   The handrail belt for a passenger conveyor according to claim 1, wherein an outer end portion of an upper surface connected to the flat portion of the curved portion is exposed.   The handrail belt for a passenger conveyor according to claim 1, further comprising a canvas on a surface of the drive belt that contacts the flat portion.   The handrail belt for passenger conveyors according to claim 1, wherein the hardness of the hard member measured according to JIS Z2246 is 80Hs or more. A pair of balustrades arranged on both sides of a plurality of steps that are endlessly connected and circulated;
The handrail belt according to any one of claims 1 to 4, wherein the handrail belt is wound around a guide rail provided at an upper part of the balustrade and can be circulated.
Have
The driving belt having a driving wheel that is driven to rotate in contact with a surface of the driving belt that is in contact with the flat surface portion, and a pressure member that is disposed at a position sandwiching the driving belt by the driving wheel. A drive belt drive mechanism for driving the belt;
Passenger conveyor characterized by comprising. The guide rail is provided with a pair of left and right guide rollers for guiding the drive belt,
On the surface of the drive belt opposite to the surface that contacts the handrail belt, the drive belt has a protruding portion made of a resin material formed along the traveling direction,
The passenger conveyor according to claim 5, wherein the protrusion is disposed between the pair of left and right guide rollers.   The passenger conveyor according to claim 6, wherein the protrusion has a trapezoidal cross section. On the return path, a return path guide roller for guiding the handrail belt is provided,
Both end portions of the return path guide roller abut against the exposed outer end portion of the upper surface of the curved portion of the handrail belt,
The passenger conveyor according to claim 5, wherein a center portion of the return path guide roller has a smaller diameter than the both end portions so as not to contact the flat portion of the handrail belt.   The passenger conveyor according to claim 8, wherein a brush for cleaning the flat portion of the handrail belt is provided at a central portion of the return path guide roller.

Images