JP2017030939A - Escalator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent overturn of a passenger on a foot step, in both of descending operation and ascending operation.SOLUTION: An escalator device comprises: plural foot steps 102 on which treads 102b are formed on an upper face; a front wheel 102c and a rear wheel 102a disposed on each foot step 102; a front wheel rail 111 on which the front wheels 102c travel; a descending side rear wheel rail 101c at a high position and an ascending side rear wheel rail 101b at a low position, on which the rear wheels 102a travel, and being disposed on lower positions lower than the position of the front wheel rail 111; and a locus switching device 100 for switching the ascending side rear wheel rail 101b and the descending side rear wheel rail 101c, positioning the rear wheels 102a on the ascending side rear wheel rail 101b in the descending operation, positioning the rear wheels 102a on the descending side rear wheel rail 101c in the ascending operation, for traveling the foot steps 102 in a state in which the treads 102b are horizontal in the ascending operation, and in a state in which tip ends 102e side of the treats 102b in the travel direction are inclined upward, relative to the horizontal direction in the descending operation.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an escalator device having a function of changing the angle of a tread surface of a step.

  FIG. 6 is a partial cross-sectional view showing the structure of a general escalator apparatus that has been conventionally used. As shown in the figure, the escalator device includes a plurality of steps 102 connected endlessly by a step (front wheel) chain (not shown), and a rear wheel rail 101 that guides the traveling of the rear wheels 102a of the plurality of steps 102. The moving handrail 112 that travels in synchronization with the plurality of steps 102 is configured. Here, when the escalator device causes the step 102 to travel in the downward direction as indicated by an arrow A in the figure, if any safety device (not shown) operates, the escalator device performs control so that the travel of the step 102 is suddenly stopped. Is done.

  When the travel of the step 102 suddenly stops while the step 102 is traveling in the downward direction in this way, the passenger 103 riding on the step 102 is inclined forward in the downward direction that is the travel direction of the step 102 ( 103a), and there was a case of falling.

  In order to prevent this, conventionally, by changing the track of the rear wheel rail 101 and making the angle of the tread surface 102b of the step 102 toe up toward the traveling direction (downward direction), the passenger 103 is always in a leaning posture. What was comprised so that the said fall might be prevented was proposed (refer patent document 1).

JP-A-4-323188

  In the prior art, the step board surface is almost horizontal in the vicinity of the getting-on / off position, and in the middle region, the step surface is inclined so that the lower step side is higher than the upper step side, so that the passenger is unlikely to fall down. The position of the center of gravity of the passenger is corrected. When corrected in this way, it is effective for ensuring the safety of passengers when traveling down, but when traveling up, the passengers always lean forward, so there is sufficient consideration for ensuring safety during ascending travel. I could not say.

  Therefore, a problem to be solved by the present invention is to prevent a passenger from falling on a step during both descending and rising operations.

  In order to solve the above problems, the present invention includes a plurality of steps that are connected endlessly and on which a step surface on which a passenger is placed is formed on the upper surface, a front wheel that is provided on each step and is positioned in front of the driving direction during ascending operation, and A rear wheel located at the rear, a front wheel rail on which the front wheel travels, a lower side rear wheel rail installed at a lower position than the front wheel rail, and a rear side on the high side where the rear wheel travels, and a rear side on the upside A wheel rail, the ascending rear wheel rail and the descending rear wheel rail are switched, and during the ascending operation, the rear wheel is positioned on the ascending rear wheel rail, and during the descending operation, the rear wheel is moved to the descending side. Trajectory switching that allows the steps to travel on the rear wheel rails with the treads leveled during ascending operation and tilted so that the front end of the treading direction is above the horizontal during descending operation Characterized escalator apparatus having a stage, a. Note that problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

  According to the present invention, it is possible to prevent a passenger from falling on a step during both the descending and rising operations of the escalator device.

It is a figure which shows the outline of the switching mechanism of the running track of the step of the escalator apparatus which concerns on embodiment of this invention. It is a figure which shows the state in the raising operation of the escalator apparatus shown in FIG. It is a figure which shows the state in the descent | fall operation | movement of the escalator apparatus shown in FIG. It is a flowchart which shows the operation | movement (control) procedure of the escalator apparatus shown in FIG. It is a figure which shows the track | orbit comparison at the time of the raising / lowering operation | movement of the escalator apparatus shown in FIG. It is a figure which shows the structure of the general escalator apparatus currently implemented, and the relationship between a passenger.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  In general, an escalator device basically includes a step (FIG. 1: reference numeral 102), a step chain (not shown), upper and lower sprockets, and a driving electric motor (FIG. 1: reference numeral 107). The steps are pivotally supported by an endlessly connected step chain, and a plurality of steps are provided. The step chain is wound around the upper sprocket and the lower sprocket, and the upper sprocket is rotationally driven by the driving force of the driving electric motor. Thus, when the electric motor is driven, the upper sprocket rotates, and the step chain receives this driving force to rotate. The steps rotate and rotate together with the rotation of the step chain.

  FIG. 1 is a diagram showing a schematic configuration of a step trajectory switching mechanism of a step of an escalator device according to an embodiment of the present invention. In the figure, an escalator device E according to the present embodiment includes a step 102, an operation panel 105, a control device 106, an electric motor 107, and a trajectory switching device 100.

  As described above, the step 102 is pivotally supported by the step chain, and a plurality of steps 102 are continuously provided. The step 102 is provided with a front wheel 102c (see FIG. 5) on the front side in the ascending driving direction and a rear wheel 102a on the rear side, the front wheel 102c on the front wheel rail 111, and the rear wheel 102a on the upside or downside rear wheel rail. 101b and 101c roll in synchronization with the movement of the step chain.

  The operation panel 105 is operated by a key switch (not shown), and the traveling direction of the step 102 is selected by this switch operation. The control device 106 issues an ascending or descending traveling command in response to a selection operation on the operation panel 105. Further, the electric motor 107 is driven to rotate forward or reversely according to an ascending or descending traveling command from the control device 106, and drives the step chain.

  The track switching device 100 drives the gear 109 in response to a control signal from the control device 106 to switch the switching rail 101a to the ascending side or the descending side. The track switching device 100 includes an ascending rear wheel rail 101b, a descending rear wheel rail 101c, a switching rail 101a, a switching motor 108, a magnet 102d, and a magnet switch 104.

  The control device 106 includes a CPU that controls each part of the escalator device E. The CPU includes a control unit and a calculation unit. The control unit controls the interpretation of instructions and the control flow of the program, and the calculation unit executes the calculation. The program is stored in a memory (not shown), an instruction to be executed (a certain numerical value or a sequence of numerical values) is taken out from the memory in which the program is placed, and the program is executed. In the following description, the processing of the control device 106 shown in FIG. 1 will be described, but the CPU executes as hardware.

  The ascending rear wheel rail 101b guides and travels the rear wheel 102a of the step 102 when the step 102 is raised, and the descending rear wheel rail 101c guides and travels the rear wheel 102a when the step 102 descends. A pair of upper and lower switching rails 101a are provided so as to be switchable between the ascending rear wheel rail 101b and the descending rear wheel rail 101c. The switching motor 108 performs switching driving of the pair of switching rails 101 a via the gear 109. The magnet 102d is provided on at least one of the plurality of steps 102. The magnet switch 104 is for detecting that the rear wheel 102a of the step 102 provided with the magnet 102d is not located on the switching rail 101a when facing the magnet 102d. A detection signal of the magnet switch 104 is input to the control device via the signal line 110a.

  FIG. 2 is a diagram showing an outline of the state of the escalator device in the present embodiment during the ascending operation, and FIG. Both are views seen from the side. FIG. 4 is a flowchart showing an operation (control) procedure of the escalator device in the present embodiment.

In the case of ascending operation, the tread surface 102b of the step 102 is horizontal as can be seen from FIG. 2, and in the case of descent operation, the tread surface 102b of the step 102 is in the traveling direction (downward direction) as can be seen from FIG. Is set to the angle of toe-up toward (FIG. 5: angle α). In the present embodiment, this angle switching is performed by switching between the descending side and the ascending side rear wheel rails.
Hereinafter, the details of the operation control and switching mechanism of the escalator device in the present embodiment will be described with reference to FIG.

  The escalator device E is activated according to the operation of the key switch. Therefore, when the control device 106 receives the operation signal of the key switch (step S1), the control device 106 determines whether or not the traveling direction of the received operation signal is the same as the previous activation (step S2). . Here, if they are the same, the control device 106 continues the normal speed operation without changing the current control state (step S9).

  On the other hand, when the traveling direction of the received operation signal is different from the previous activation time, the control device 106 issues an announcement command for performing a switching operation for switching the trajectory switching device 100 to an auto-announcement device (not shown), Make announcements from the auto-announcer. After an announcement is made from the auto-announce device, the step 102 is caused to travel to a position where the magnet 102d and the magnet switch 104 face each other (step S3). In this announcement, the escalator device E is activated once, but the escalator device E is stopped.

  Thereafter, the control device 106 issues an operation command to the switching motor 108 via the signal line 110b to cause the switching rail 101a to be switched (step S4). When the escalator device E is reversely driven from the descending operation (in the direction of arrow A) to the ascending operation (in the direction of arrow B), as shown in FIG. 2, the switching rail 101a is moved backward from the connecting position of the descending side rear wheel rail 101c. It is rotated to the connection position to the wheel rail 101b (in the directions of arrows C and D). On the other hand, when the escalator device E is reversely driven from the ascending operation (arrow B direction) to the descending operation (arrow A direction), the switching rail 101a is lowered from the connecting position of the ascending rear wheel rail 101b as shown in FIG. Rotate to the connection position to the side rear wheel rail 101c (arrow E, F direction).

  In this way, the rear wheel rail 101 that guides the rear wheel 102a of the step 102 by the rotation of the switching rail 101a can be switched to either the ascending-side rear wheel rail 101b or the descending-side rear wheel rail 101c.

  Next, if it is detected by a detector (variable plate position detection sensor) (not shown) that the switching rail 101a has been displaced to the correct switching position by the switching operation, the control device 106 issues a stop command to the switching motor 108 to perform switching. The drive of the motor 108 is stopped (step S5).

  Thereafter, the control device 106 issues an announcement command to the effect that the step 102 performs switching travel to an auto-announce device (not shown), and causes the auto-announce device to make an announcement (step S6). The announcement here is a content that alerts passengers not to get in yet because the step 102 is switched at a lower speed than usual.

  After the announcement, the control device 106 issues a drive command to the motor 107 to drive in the direction of the operation signal of the key switch, and until the magnet 102d again faces the magnet switch 104, that is, until the step 102 makes one round. Run (steps S7, S8).

  If the step 102 is caused to travel in an annular manner until it makes one round in this way, the step 102 connected endlessly is connected to the ascending-side rear wheel rail 101b or the descending-side rear wheel rail 101c respectively switched at the position of the switching rail 101a. Change to one of them. After this transfer is completed, the control device 106 performs control so that the escalator device E is normally operated in the switching operation direction, and completes the switching operation control.

  Although not shown in the flowchart of FIG. 4, it is desirable to announce to the passengers that the escalator device E can be used to resume normal operation.

  FIG. 5 is an explanatory diagram showing a trajectory comparison during the ascending / descending operation of the escalator device E according to the present embodiment. In FIG. 5, the front wheel rail 111 and the front wheel 102c of each step 102 are added to FIGS.

  On the step 102, a front wheel 102c is rotatably provided on the upper side in the figure, and a rear wheel 102a is rotatably provided on the lower side. The front wheel 102c rolls on a front wheel rail 111 that is installed above the rear wheel rail 101. The vehicle is guided by 111. On the other hand, the rear wheel 102a travels on the ascending rear wheel rail 101b in the ascending operation, and travels on the descending rear wheel rail 101c in the descending operation. Accordingly, it can be seen that the step 102 tilts according to the position of the rail on which the rear wheel 102a travels with the rotation center of the front wheel 102c as a fulcrum.

That is, when the escalator device E performs the ascending operation (in the direction of arrow B), the rear wheel rail 102a travels on the ascending rear wheel rail 101b positioned on the lower side as shown in FIG. 2 (FIG. 5: broken line state) ). In this state, the tread surface 102b of the step 102 is in a horizontal state. In other words, the ascending rear wheel rail 101b is arranged at a position where the tread surface 102b is horizontal.
On the other hand, when the escalator device E performs the descent operation (in the direction of arrow A), the rear wheel rail 102a travels on the lower side rear wheel rail 101c located on the upper side as shown in FIG. 3 (FIG. 5: solid line state). . In this state, as shown in gray in FIG. 5, the tread surface 102 b of the step 102 is in a state where the toe side is raised from the horizontal state by the angle α in the descending direction (arrow A direction). In other words, the lower-side rear wheel rail 101b is disposed at a position where the tread surface 102b rises from the angle α horizontal. Switching between the ascending rear wheel rail 101b and the descending rear wheel rail 101c is performed by the switching operation of the switching rail 101a. The tread 102a travels at an angle α during descending operation and travels in a horizontal state during ascending operation. Will do.

  As the angle α, for example, 4 degrees is preferable, and when it is not 4 degrees, it is desirable that the angle range is about ± 2 degrees with respect to 4 degrees.

  As described above, according to the present embodiment, the following effects can be obtained. In the following description of the effects, each component in the claims corresponds to each part of the present embodiment, and the latter is indicated by parentheses or reference numerals.

(1) The escalator device E according to the present embodiment is provided in a plurality of steps 102 that are endlessly connected and have a step surface 102b on the top surface on which a passenger is placed, and is provided in each step 102. The front wheel 102c located at the rear, the rear wheel 102a located at the rear, the front wheel rail 111 on which the front wheel 102c travels, and the lower side which is located at a position lower than the front wheel rail 111 and at which the rear wheel 102a travels The rear wheel rail 101c and the ascending rear wheel rail 101b in the lower position, the ascending rear wheel rail 101b, and the descending rear wheel rail 101c are switched, and during the ascending operation, the rear wheel 102a is replaced with the ascending rear wheel rail. The vehicle is lifted by positioning the rear wheel 102a on the lower-side rear wheel rail 101c during lowering operation. Trajectory switching means (trajectory switching device) that travels the step 102 in a state where the tread surface 102b is leveled during a turn, and in a state where the tread surface 102b of the tread surface 102b is tilted so as to be above the horizontal during a descent operation. 100).

  With this configuration, during the ascending operation, the tread 102b is leveled by the height difference between the ascending rear wheel rail 101b on which the rear wheel 102a travels and the front wheel rail 111 on which the front wheel 102c travels, and the descending When driving, the front end 102e side in the running direction of the tread surface 102b is above the horizontal due to the difference in height between the descending rear wheel rail 101c on which the rear wheel 102a runs and the front wheel rail 111 on which the front wheel 102c runs. The step 102 can be made to travel by inclining. As a result, during the descent operation, the step 102 can be tilted by the angle α to make the passenger lean backward. Thereby, even if the escalator device E stops suddenly, it is possible to prevent the passenger from falling forward. Further, during the ascending operation, the tread 102b of the step 102 is maintained to be kept horizontal so that the passenger can be prevented from tipping forward when the escalator device E stops suddenly, and the escalator device E can be raised or lowered. It is possible to prevent passengers from falling even during the traveling.

(2) The switching rail 101a in which the track switching means (track switching device 100) switches the traveling rail of the rear wheel 102a between the ascending rear wheel rail 101b and the descending rear wheel rail 101c, and the switching. Since the switching drive means (switching motor 108 and gear 109) for switching the rail 101a is included, the switching rail 101a can be easily switched via the gear 109 by driving the switching motor 108.

(3) Control means (control device 106) for operating the switching drive means (switching motor 108 and gear 109) and detection means (magnet 102d and magnet switch 104) for detecting a position where the switching rail 101a can be switched. The control means (control device 106) determines whether or not the operation direction of the step 102 is the same as the previous operation direction at the start of operation, and the control means (control device 106) When it is determined that they are the same, the vehicle travels in the previous driving direction at a normal speed, and when it is determined that they are not the same, the switching rail 101a detected by the detection means (the magnet 102d and the magnet switch 104) is switched to a position where it can be switched. After the step 102 is moved, the switching drive means (switching motor) 08 and so causes the switching by the gear 109), without causing inconveniences such as an accident or driving impossible, it is possible to switch the rising side rear wheel rail 101b and the descending side rear wheel rail 101c.

  In addition, it is possible to automatically switch the slope of the step 102 every time the operation starts, in other words, every time the elevator device E is started, so it is easy to respond to changes in the layout of the building and temporary operation restrictions during events. can do.

(4) When the control means (the control device 106) determines that the driving directions are not the same, the trajectory switching means (the trajectory switching device 100) determines that the preset step 102 is a preset position (magnet 102d). The rear wheel rail 101b on which the rear wheel 102a travels by the switching drive means (switching motor 108 and gear 109) in a stopped state. 101c is switched to run at a low speed until the preset step 102 moves to a preset position (position where the magnet 102d is detected by the magnet switch 104) in the reverse direction, and then the reverse direction at a normal speed. So that the step 102 can be reversed and operated safely and reliably. It is possible.

(5) When the control means (control device 106) determines that the driving direction is not the same, the control means (the control device 106) includes an announcement means for announcing the operation of the step 102. it can.

(6) Since the angle (α) at which the inclination is 4 degrees from the horizontal is used as a reference, the passenger can move on the step 102 without taking a large backward inclination posture. While ensuring comfort, it is possible to prevent a fall when stopping.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention, and all technical matters included in the technical idea described in the claims are included. The subject of the present invention. The above-described embodiments show preferred examples, but those skilled in the art can realize various alternatives, modifications, variations, and improvements from the contents disclosed in the present specification. These are included in the technical scope described in the appended claims.

DESCRIPTION OF SYMBOLS 100 Track switching device 101a Switching rail 101b Raising side rear wheel rail 101c Lowering side rear wheel rail 102 Step 102a Rear wheel 102b Tread surface 102c Front wheel 102d Magnet 102e Tip 104 Magnet switch 106 Control device 107 Electric motor 108 Switching motor 109 Gear 111 Front wheel rail E Escalator Device α angle

Claims (6)

A plurality of steps connected endlessly and having a tread surface formed on the upper surface for carrying passengers;
A front wheel that is provided at each step and is located in front of the driving direction during ascending operation, and a rear wheel that is located behind;
A front wheel rail on which the front wheels travel;
A lower-side rear wheel rail at a higher position and a lower-side rear wheel rail at a lower position, which are installed at a position lower than the front wheel rail; and
The ascending rear wheel rail and the descending rear wheel rail are switched. During the ascending operation, the rear wheel is positioned on the ascending rear wheel rail, and during the descending operation, the rear wheel is placed on the descending rear wheel rail. A trajectory switching means for running the step in a state where the step surface is level during the ascending operation and inclined so that the front end side in the running direction of the tread is above the horizontal during the descent operation;
An escalator device with In the escalator device according to claim 1,
The track switching means includes a switching rail that switches the traveling rail of the rear wheel between the ascending-side rear wheel rail and the descending-side rear wheel rail, and a switching driving means that switches the switching rail. An escalator device characterized by. In the escalator device according to claim 2,
Control means for operating the trajectory switching means;
Detecting means for detecting a position where the switching rail can be switched;
With
The control means determines whether the driving direction of the step is the same as the previous driving direction at the start of driving,
When it is determined that the control means is the same, the vehicle travels at the normal speed in the previous driving direction. When it is determined that the control means is not the same, the step is moved to a position where the switching rail detected by the detection means can be switched. Then, the escalator apparatus characterized in that the switching is performed by the switching drive means. In the escalator device according to claim 3,
When it is determined that the control means is not the same, the trajectory switching means causes the step to travel until the preset step moves to a preset position, and in the stopped state, the switching drive means causes the rear The rear wheel rail on which the wheel travels is switched and travels at a low speed until the preset step moves to a preset position in the reverse direction, and then travels in the reverse direction at a normal speed. Escalator device. In the escalator device according to claim 3 or 4,
An escalator device comprising an announcement means for making an announcement about the operation of the step when the control means determines that the driving directions are not the same. In the escalator device according to any one of claims 1 to 5,
An escalator device characterized in that the inclination is based on an angle of 4 degrees from the horizontal.