JP2013119473A - Escalator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an escalator for suppressing that clothes or the like are drawn into a gap between a step and a skirt guard in a lower bent part.SOLUTION: The escalator 10 includes a step 11 moving between an upper floor and a lower floor, the skirt guards 21 disposed at both right and left sides of the step 11, rotary brushes 30 that have rotary shafts 31 extending in the longitudinal direction of the step 11 and are disposed at both right and left ends of the back side of the step 11, and a roller driving device for clockwise rotating the rotary brush 30 located at the left side of the traveling direction of the step 11 in the lower bent part 27 and counterclockwise rotating the rotary brush 30 located at the right side of the traveling direction. The roller driving device includes a rack gear 40, a pinion gear 41, and a transmission section 50.

Description

  The present invention relates to an escalator, and more particularly to a descending escalator.

  An escalator has a level | step difference between adjacent steps, and has an inclined part which each step maintains a step shape and moves. Further, the escalator has a step between adjacent steps, and has a horizontal portion where the stepping plate of each step moves side by side on the same plane, and a curved portion located at the boundary between the inclined portion and the horizontal portion. In many elevators, there is one inclined portion, and there are horizontal portions at two locations near the upper and lower entrances.

  In the curved portion of the escalator, the relative positional relationship with respect to the vertical direction changes between adjacent steps. In descending escalators, the lower bend on the lower floor side gradually reduces the level difference between adjacent steps. At this time, the skirt of the user's skirt or pants can be drawn into the gap between the step and the skirt guard. There is sex. When the skirt or trouser hem is pulled into the gap (hereinafter, the objects that may be pulled in are collectively referred to as “clothes and the like”), the clothes and the like are damaged or damaged.

  As a technique related to the present invention, Patent Document 1 discloses an escalator in which a riser brush is disposed on a riser surface of a step.

JP 2006-143475 A

However, the technique disclosed in the above-mentioned patent document cannot prevent clothes or the like from being drawn into the gap between the step and the skirt guard.
The objective of this invention is providing the escalator which can suppress that clothes etc. are drawn in the clearance gap between a step and a skirt guard in a lower curved part.

The escalator according to the present invention includes a step that moves between the upper floor and the lower floor, skirt guards provided on the left and right sides of the step, and a rotating shaft that extends in the front-rear direction of the step, and is provided at both left and right ends of the step back side. When the escalator is in the descending operation, the roller located on the left side in the lower direction is rotated clockwise and the roller located on the right side in the direction of travel. And a roller driving device that rotates counterclockwise.
According to the said structure, the clothes etc. which are going to approach into the clearance gap between a step and a skirt guard can be extruded by rotation of the roller in a lower curved part.

The roller drive device includes a rack gear fixed to the skirt guard or the truss structure, a pinion gear that is rotatably supported on the back side of the step and meshes with the rack gear, and a transmission unit that transmits the rotation of the pinion gear to the roller. It is suitable that it is comprised including.
According to this configuration, the pinion gear that moves together with the step rotates while meshing with the rack gear, and the rotation is transmitted to the roller via the transmission unit. That is, the roller can be rotated using the movement of the step.

Further, the rack gear is preferably fixed to the skirt guard or the truss structure at the inclined portion adjacent to the lower curved portion. In particular, it is preferable to provide the rack gear only in the inclined portion adjacent to the lower curved portion.
According to the said structure, by providing a rack gear in the inclined part adjacent to a lower curve part, a roller is rotated just before a step passes a lower curve part, and rotation of a roller is maintained until it passes a lower curve part. Can do. On the other hand, since clothes and the like are not pulled in other than the lower bent portion, use of power and use of parts can be prevented by not providing the rack gear other than the inclined portion adjacent to the lower bent portion.

Further, as the roller driving device, an electric motor provided on the back side of the step and rotating the rotating shaft of the roller can be used.
According to this configuration, the roller driving mechanism can be simplified. This configuration is suitable for an escalator with a small number of steps, for example.

Moreover, it is preferable that a roller is a rotating brush which has a bristle material around a rotating shaft.
According to the said structure, it becomes easier to push out the clothes etc. which are going to approach into the clearance gap between a step and a skirt guard.

  According to the escalator according to the present invention, clothes and the like can be suppressed from being drawn into the gap between the step and the skirt guard due to the rotation of the roller in the lower curved portion. Thereby, the stain | pollution | contamination and damage of clothes etc. resulting from the drawing in a lower curved part can be prevented.

It is a figure which shows the escalator which is embodiment of this invention, Comprising: A lower bending part and its vicinity are expanded and shown. It is a figure which extracts and shows the step and skirt guard of the escalator which is an embodiment of the present invention, and shows a mode that the step was seen from the upper part. It is a figure which shows the roller of the escalator which is embodiment of this invention, Comprising: The mode seen from the one end side of the rotating shaft of a roller is shown. It is a figure for demonstrating the roller drive device of the escalator which is embodiment of this invention, Comprising: The mode which looked at the step from the moving direction rear side is shown. It is a figure for demonstrating the roller drive device of the escalator which is embodiment of this invention, Comprising: The mode which looked at the step from the moving direction right side is shown. It is a figure for demonstrating the roller drive device of the escalator which is embodiment of this invention, Comprising: A rack gear and a pinion gear are extracted and shown. It is a figure which shows the modification of the escalator which is embodiment of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
In the embodiment, the escalator 10 in which both the inclined portion 25 and the lower curved portion 27 are one is illustrated, but the application of the present invention is not limited to this. The present invention can also be applied to an escalator having a horizontal portion 26 in the middle portion and having a plurality of lower curved portions 27, for example.

The escalator 10 is described as a descending escalator in which the step 11 visible to the user moves from the upper floor to the lower floor.
In the following, the front, rear, left, and right of step 11 are defined using the traveling direction of step 11 as seen by the user. The direction of step 11 may be simply referred to as front, back, left, and right, but this means front, back, left, and right in the direction of travel of step 11 as seen from the user unless there are special circumstances.

The configuration of the escalator 10 will be described with reference to FIGS.
The escalator 10 is a lifting device in which a plurality of steps 11 move between an upper floor and a lower floor. A balustrade 12 is provided on both the left and right sides of the step 11, and a moving handrail 13 that moves in conjunction with the step 11 is movably attached to the balustrade 12. Further, the escalator 10 includes a control device (not shown) that controls the entire operation in an integrated manner.

  Step 11 is attached to an endless step chain. For example, the step chain is spanned between the sprockets provided in the upper and lower machine chambers, and rotates between the sprockets when the sprocket is rotated by an electric motor. As a result, a plurality of steps 11 connected by the step chain circulate between the entrance / exit on the upper floor side and the entrance / exit 14 on the lower floor side.

  Step 11 includes a footboard 15, a riser 16, and a frame 17 to which a step shaft (not shown) is attached. The footboard 15 is a portion on which the user is placed, and is maintained horizontally from the portion where the user can see, that is, from the entrance on the upper floor side to the entrance 14 on the lower floor side. The riser 16 has a curved shape that extends downward from the front end of the tread plate 15 and gently curves backward. The riser 16 closes the gap between the steps 11 when there is a step between the adjacent steps 11.

  The balustrades 12 are side walls provided on the left and right sides of the step 11. The balustrade 12 includes, for example, a balustrade frame (not shown) and a balustrade panel 18 made of glass, plastic, or stainless steel. The balustrade panel 18 illustrated in FIG. 4 is pressed from the step 11 side by the decoration 20 in a state of being placed on an angle 19 fixed to the balustrade frame or truss structure 28.

  The balustrade 12 is provided with a skirt guard 21 that closes the gap between the step 11 and the balustrade panel 18. In the form illustrated in FIG. 4, the skirt guard 21 is pressed against the decoration 20 and is fixed to the angle 19 together with the decoration 20 by a screw 22. A gap S is provided between the step 11 and the skirt guard 21 in order to prevent mutual contact.

  As described above, the escalator 10 has a step between adjacent steps 11, and each step 11 maintains a stepped shape, and the step 25 between the adjacent steps 11 disappears. The tread plate 15 includes a horizontal portion 26 that moves side by side on the same plane, and a curved portion that is located at the boundary between the inclined portion 25 and the horizontal portion 26. In addition, the music part located in the lower floor side among music parts is the lower music part 27. FIG.

  Further, the escalator 10 includes rollers provided at both left and right ends on the back side of Step 11 and a roller driving device. When the escalator 10 is in the descending operation, the roller driving device rotates the roller located on the left side in the traveling direction of step 11 clockwise in the lower curved portion 27 and is positioned on the right side in the traveling direction. Rotate the roller to rotate counterclockwise.

  In the escalator 10, the rotating brush 30 which has the rotating shaft 31 extended in the front-back direction of step 11 is used as a roller. The roller driving device includes a rack gear 40 fixed to the skirt guard 21 or the truss structure 28, a pinion gear 41 that moves together with the step 11, and a transmission unit 50. The truss structure 28 means a structural part that forms the skeleton of the escalator 10, and includes a balustrade frame and a truss frame.

  The rotating brush 30 rotates so as to push out clothes or the like about to enter the gap S at the lower curved portion 27. Therefore, it is preferable that the rotary brush 30 is provided so as to protrude from the step 11 to the gap S so that it can easily touch clothes or the like about to enter the gap S at the left and right ends on the back side of the step 11. The rotating brush 30 is preferably provided at a position close to the back surface of the tread plate 15. If there is no hindrance to the movement of step 11 and the rotation of the rotating brush 30, the rotating brush 30 may contact the skirt guard 21.

  The rotating brush 30 includes a rotating shaft 31 and a bristle material 32 provided around the rotating shaft 31. The rotating shaft 31 is preferably disposed substantially parallel to the front-rear direction of the footboard 15 and has an axial length that exceeds 50% of the length of the footboard 15 in the front-rear direction. One end of the rotating shaft 31 is a connection part with the transmission part 50, and a bevel gear 33 for receiving a rotational force from the transmission part 50 is attached to the connection part. The rotating shaft 31 is rotatably attached to the back surface of the tread plate 15 by a shaft support portion 34. As the hair material 32, for example, chemical fiber, animal fiber, plant fiber, metal fiber, or the like can be applied. Of these, chemical fibers such as nylon and polypropylene are particularly suitable. The rotating brush 30 is preferably provided so that the bristle material 32 protrudes into the gap S.

  The rack gear 40 is fixed to the skirt guard 21 or the truss structure 28. In the form illustrated in FIG. 4, the rack gear 40 is fixed to the truss structure 28 located below the skirt guard 21. The rack gear 40 is provided on both the left and right sides of the step 11 so that the gear teeth face the step 11 side.

  Although the rack gear 40 may be provided in a wide range from the inclined portion 25 to the horizontal portion 26, it is preferable that the rack gear 40 is provided only in the inclined portion 25 adjacent to the lower curved portion 27 as illustrated in FIG. The inclined part 25 adjacent to the lower curved part 27 means, for example, the inclined part 25 located immediately before the lower curved part 27, and is located in a range of about 0.5 to 5 m from the upper end of the lower curved part 27. The portion 25 is preferable. The rack gear 40 has a shape extending straight and is provided in accordance with the inclination angle of the inclined portion 25. Thereby, the rack gear 40 and the pinion gear 41 are easily meshed.

  The pinion gear 41 is rotatably attached to the back side of Step 11 and moves together with Step 11. The pinion gear 41 is configured to mesh with the rack gear 40 and rotate when the step 11 passes through the inclined portion 25 adjacent to the lower curved portion 27. The pinion gear 41 is arranged in accordance with the inclination angle of the rack gear 40 and at the same height as the rack gear 40, that is, below the skirt guard 21. For this reason, the member (transmission part 50) which transmits rotation of the pinion gear 41 with respect to the rotating brush 30 arrange | positioned close to the back surface of the tread board 15 is needed. The form of the rack gear 40 and the pinion gear 41 is not particularly limited as long as the rack gear 40 and the pinion gear 41 are engaged with each other and the pinion gear 41 rotates.

  The transmission unit 50 is a member for transmitting the rotation of the pinion gear 41 to the rotating brush 30 to rotate the rotating brush 30. The transmission unit 50 includes a rotation shaft 51 having one end connected to the pinion gear 41, a bevel gear 52 attached to the other end of the rotation shaft 51, and a shaft support portion 53 that rotatably supports the rotation shaft 51. In the transmission unit 50, the axial length of the rotating shaft 51 and the position with respect to the step 11 do not vary.

  The rotating shaft 51 is provided along the rotating shaft of the pinion gear 41 and has an axial length corresponding to the distance between the pinion gear 41 and the rotating brush 30. Further, the rotation shaft 51 is provided substantially perpendicular to the rack gear 40, and the angle formed with the rotation shaft 31 of the rotating brush 30 is an obtuse angle. The bevel gear 33 of the rotating shaft 31 and the bevel gear 52 of the rotating shaft 51 are configured to mesh with each other. The rotation shafts 31 and 51 can transmit the rotation of the rotation shaft 51 to the rotation shaft 31 by the bevel gears 33 and 52.

Here, operation | movement of the escalator 10 provided with the said structure is demonstrated.
In the escalator 10 during downhill driving, the step 11 visible from the user moves from the upper floor toward the lower floor. In this case, in the lower curved part 27, the level | step difference between the adjacent steps 11 becomes small gradually. At this time, clothes or the like may be drawn into the gap S between the step 11 and the skirt guard 21.

  In the escalator 10, the rotating brushes 30 at the left and right ends on the back side of the step 11 are rotated in the lower bend portion 27 in the direction of pushing out clothes or the like about to enter the gap S. As a result, clothes and the like are pushed out at the entrance of the gap S without being drawn into the gap S. Therefore, it is possible to prevent the clothes from being damaged or damaged due to the pulling in the lower curved portion 27.

  When the step 11 passes through the inclined portion 25 adjacent to the lower curved portion 27, the rotary brush 30 rotates with the pinion gear 41 engaged with the rack gear 40 fixed to the truss structure 28, and the rotation is transmitted. It is rotated by being transmitted to the rotating brush 30 via the part 50. The rotation of the rotating brush 30 is maintained until the step 11 passes the lower curved portion 27.

  More specifically, the rotary brush 30 provided at the left end of Step 11 rotates clockwise (clockwise) in the advancing direction of Step 11, and the rotary brush 30 provided at the right end of Step 11 progresses in the progress. Rotate counterclockwise (counterclockwise) toward the direction. As shown in FIG. 6, when the pinion gear 41 is viewed from above, the left pinion gear 41 rotates clockwise and the right pinion gear 41 rotates counterclockwise due to the movement of step 11. Similarly, the rotating shaft 51 connected to the pinion gear 41 rotates the left rotating shaft 51 clockwise and the right rotating shaft 51 rotates counterclockwise. Since the rotating shaft 51 is directly connected to the rotating shaft 31 of the rotating brush 30 via the bevel gears 52 and 33, the rotation of the rotating brush 30 can be realized.

The design of the above embodiment can be changed as appropriate without departing from the scope of the present invention.
Examples of design changes (modifications) are shown below.

  As shown in FIG. 7, an electric motor 60 that rotates the rotating shaft 31 of the rotating brush 30 may be mounted in each step 11 as a roller driving device. The electric motor 60 can be fixed to the back surface of the tread plate 15 or the frame 17 on the back side of the step 11. In this case, a battery may be mounted in each step 11 as a power source for the electric motor 60. Alternatively, a battery may be mounted only in some of the steps 11, and the lead wire may be extended from the battery to the electric motor 60 in each step 11. In this case, it is preferable to limit the range in which the electric motor 60 is driven by the function of the control device when each step 11 passes the lower curved portion 27. Thereby, the rotary brush 30 can be rotated only in the lower curved part 27, and it contributes to energy saving etc.

  Further, the roller is not limited to the rotating brush 30, and for example, a roller having a protrusion or a rubber roller can be used.

  10 escalators, 11 steps, 12 railings, 13 moving handrails, 14 boarding gates, 15 footboards, 16 risers, 17 frames, 18 balustrade panels, 19 angles, 20 ornaments, 21 skirt guards, 22 screws, 25 slopes, 26 horizontal Part, 27 under curve part, 28 truss structure, 30 rotating brush, 31, 51 rotating shaft, 32 bristle material, 33, 52 bevel gear, 34, 53 shaft support part, 40 rack gear, 41 pinion gear, 50 transmission part, 60 electric motor.

Claims (5)

Moving between upper and lower floors;
Skirt guards on the left and right sides of the step,
A rotation shaft extending in the front-rear direction of the step, and rollers provided at both left and right ends on the back side of the step;
When the escalator is in descending operation, in the lower curve portion, the roller located on the left side in the direction of step advancement is rotated clockwise, and the roller located on the right side in the direction of advancement is rotated counterclockwise. A roller driving device;
An escalator comprising: The escalator according to claim 1,
The roller drive is
Rack gear fixed to the skirt guard or truss structure;
A pinion gear that is rotatably supported on the back side of the step and meshes with the rack gear,
A transmission unit for transmitting the rotation of the pinion gear to the roller;
An escalator characterized by comprising. The escalator according to claim 2,
The rack gear is fixed to the skirt guard or the truss structure at an inclined portion adjacent to the lower curved portion. The escalator according to claim 1,
An escalator characterized in that the roller driving device is an electric motor that is provided on the back side of the step and rotates a rotating shaft of the roller. The escalator according to any one of claims 1 to 4,
The roller is a rotating brush having a bristle material around a rotating shaft.

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