JP2015182837A - Escalator safety device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an escalator safety device capable of efficiently suppressing occurrence of an event that a hem of clothing of a user is caught between a footstep and a skirt guard, without negatively effecting the design.SOLUTION: An escalator safety device comprises: multiple footsteps 2 which are coupled in an endless manner inside an escalator body being operated downwards and which are circulation-moved; skirt guards 3 disposed along the left and right sides of the footsteps, and disposed from an entrance to an exit of the escalator; and air sending means 7 disposed on a position corresponding to a transition start part for starting transition from a state that the adjacent footsteps 2 have different vertical heights from each other, to a state that the adjacent footsteps 2 have a same height, and sending air horizontally or obliquely downwards, toward centers of the footsteps 2.

Description

  The present invention relates to a safety device for an escalator.

  In the conventional escalator safety device, the skirt guard is separated from the step surface of the step and on the surface side of the skirt guard for the purpose of preventing the hem of the garment from being caught between the step and the skirt guard. There is known one provided with a dress guard provided along the moving direction. The dress guard includes a brush that protrudes from the skirt guard to the step side (see, for example, Patent Document 1).

JP 2010-180015 A

  However, the conventional safety device for an escalator disclosed in Patent Document 1 has a design problem that the dress guard does not look good because it includes a brush protruding from the skirt guard to the step side. .

  This invention was made to solve such a problem, without adversely affecting the design surface, when the user is wearing clothes such as a long skirt wide hem at the foot, It is an object of the present invention to provide an escalator safety device that can effectively suppress the occurrence of an event in which the hem of a garment is sandwiched between a step and a skirt guard.

  In the escalator safety device according to the present invention, a plurality of steps connected endlessly in the escalator main body that is operating in a descending manner and circulated and moved from the entrance of the escalator to the exit along the left and right sides of the step. The skirt guard arranged and the adjacent steps in the skirt guard are provided at a position corresponding to a transition start portion that starts a transition from a state where the heights are different from each other to a state having the same height. It is set as the structure provided with the ventilation means which sends a wind toward the center horizontally or diagonally downward from horizontal.

  In the safety device for an escalator according to the present invention, when the user wears a garment having a wide hem such as a long skirt without adversely affecting the design surface, the skirt of the garment has a step and a skirt. There exists an effect that generation | occurrence | production of the event pinched | interposed between guards can be suppressed.

It is a figure which shows typically the structure of the escalator to which the safety device which concerns on Embodiment 1 of this invention is applied. It is a figure which shows typically the whole structure of the safety device of the escalator which concerns on Embodiment 1 of this invention. It is sectional drawing which shows typically the structure of the principal part of the safety device of the escalator which concerns on Embodiment 1 of this invention. It is a top view which shows typically the structure of the principal part of the safety device of the escalator which concerns on Embodiment 1 of this invention. It is sectional drawing which shows typically the structure of the principal part of the safety device of the escalator which concerns on Embodiment 2 of this invention.

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

Embodiment 1 FIG.
1 to 4 relate to Embodiment 1 of the present invention. FIG. 1 is a diagram schematically showing the configuration of an escalator, and FIG. 2 is a diagram schematically showing the overall configuration of the safety device of the escalator. 3 is a cross-sectional view schematically showing the structure of the main part of the safety device for the escalator, and FIG. 4 is a top view schematically showing the structure of the main part of the safety device for the escalator.

First, the configuration of an escalator to which a safety device according to Embodiment 1 of the present invention is applied will be described with reference to FIG.
The escalator includes a main frame 1 constituting a main frame. The main frame 1 is provided over the upper and lower floors where the escalator is installed. Inside the escalator body, that is, inside the main frame 1, a plurality of steps 2 on which a user rides are connected endlessly by a step chain (not shown) and circulate.

  Skirt guards 3 are provided along the left and right sides of the plurality of steps 2. The left and right skirt guards 3 are arranged from the entrance which is one entrance / exit of the escalator to the exit 6 which is the other entrance / exit. A balustrade 4 is erected on the upper part of the left and right skirt guards 3. On the outer periphery of each of the left and right balustrades 4, endless moving handrails 5 that circulate and move in synchronization with the steps 2 are provided.

  Here, the escalator is driving down. That is, the upper step 2 in the circulation movement path is moved from the upper floor side to the lower floor side. Then, the lower step 2 in the circulation movement path is returned from the lower floor side to the upper floor side. The upper floor of the escalator is the entrance and the lower floor is the exit 6.

  In the middle part of the escalator, the plurality of steps 2 are arranged in a staircase pattern according to the inclination. On the other hand, in the exit 6 part of the escalator, it arrange | positions at the same height so that adjacent steps may become substantially horizontal. For this reason, a transition part is formed in the position indicated by A in FIG. 1 on the movement path of the step 2 where the adjacent steps 2 are vertically shifted from a state having a different height to a state having the same height. .

  Next, the configuration of the safety device for an escalator according to Embodiment 1 of the present invention will be described with reference to FIG. In FIG. 2, the same reference numerals as those in FIG. 1 denote the same parts. Therefore, A in FIG. 2 indicates the position of the transition portion where the adjacent steps 2 transition from the state where the heights differ vertically to the state where the heights are the same.

  The skirt guard 3 is provided with a blowing means 7. The air blowing means 7 is located at a position corresponding to a transition start part where the transition part A is started, that is, the adjacent steps 2 start transition from a state where the heights are different from each other to the same height. Is arranged. Further, here, a blowing means 7 is additionally provided on the near side of the transition start portion, that is, on the upper floor side.

  FIG. 3 shows a cross section of a portion where the air blowing means 7 is provided. The cross-sectional view of FIG. 3 shows a state seen from a direction along the traveling direction of the escalator. The air blowing means 7 is provided as a pair of left and right. That is, the air blowing means 7 is provided in each of the left skirt guard 3 and the right skirt guard. And the ventilation means 7 used as a pair is arrange | positioned facing each other.

  Each blowing means 7 sends wind toward the center of the step 2. At this time, the blowing direction from each blowing means 7 is set to be horizontal or obliquely downward from the horizontal. FIG. 3 shows a case where the blowing direction from each blowing means 7 is set to be obliquely downward from the horizontal.

  As shown in FIG. 4, one of the left and right pairs of the air blowing means 7 is inclined from the direction perpendicular to the side surface of the skirt guard 3 to one side of both the upper floor side and the lower floor side. Send the wind. The other of the left and right pairs of the air blowing means 7 sends wind in a direction inclined from the direction perpendicular to the side surface of the skirt guard 3 to the other side of the both.

  The air blowing means 7 can be configured using, for example, a fan or a compressor. When a fan is used as the air blowing means 7, a dedicated motor can be used as a power source for driving the fan. Alternatively, power for driving the escalator can be used as a power source for driving the fan. In this case, for example, a mechanism that transmits power to the fan from the step chain that drives the step 2 may be configured, or a mechanism that transmits power to the fan from the main sprocket driven by the drive motor of the escalator. May be configured.

  Further, when a compressor is used as the air blowing means 7, a dedicated motor is used as a power source for driving the compressor in principle.

  The description will be continued with reference back to FIG. The blowing operation of the blowing unit 7 is controlled by the blowing control unit 8. The air blowing control unit 8 controls the air blowing operation of the air blowing unit 7 based on the detection result of the sensor 9 that detects the user who gets on the escalator.

  The sensor 9 is installed, for example, on the front side of the place where the air blowing means 7 is installed (here, since the escalator is driving down). The sensor 9 detects a user who passes in front of the installation location of the sensor 9. The sensor 9 that has detected the user outputs a user detection signal to the air blow control unit 8. When receiving the user detection signal, the air blowing control unit 8 operates the air blowing means 7 to send wind from the air blowing means 7 for a predetermined time. And if the said fixed time passes, the ventilation control part 8 stops the ventilation means 7, and stops the ventilation from the ventilation means 7. FIG.

  In addition, although the sensor 9 was installed in the middle part from the entrance of an escalator to the exit 6 here, you may install the sensor 9 in a entrance. In this case, the time lag from when the user who gets on the escalator is detected by the sensor 9 to when the user reaches the installation location of the blowing means 7 is longer than when the sensor 9 is installed in the middle. . Therefore, the air blowing control unit 8 does not immediately start the operation of the air blowing unit 7 even if it receives the user detection signal from the sensor 9, and starts the operation of the air blowing unit 7 after a certain waiting time has elapsed. It may be. The waiting time at this time can be appropriately determined based on the operating speed of the escalator, for example.

  In general, in an escalator, when a user wears a garment such as a long skirt that is wide at the foot, the hem of the garment is caught between the step 2 and the skirt guard 3 there's a possibility that. The phenomenon that the hem of the garment is sandwiched between the step 2 and the skirt guard 3 is particularly caused in the descending escalator from the state where the adjacent steps 2 are vertically different from each other to the same height. Are likely to occur in the transition part (A part in FIGS. 1 and 2), compared to other parts.

  In the safety device for an escalator configured as described above, wind is sent horizontally or obliquely downward from the horizontal toward the center of the step 2 by the blowing means 7 at the transition start portion. Then, by this wind, the hem of the clothes at the user's feet can be moved toward the center of the step 2, and the hem can be separated from the left and right ends of the step 2, that is, from the skirt guard 3 side. For this reason, it is possible to effectively suppress the occurrence of an event in which the hem of the clothes is sandwiched between the step 2 and the skirt guard 3.

  At this time, by arranging the air blowing means 7 on the left and right skirt guards 3 so as to face each other, the hem of the clothes at the user's feet can be brought to the center of the step 2 simultaneously from the left and right. However, at this time, the wind from the left and right blowing means 7 may collide near the center of the step 2 and an upward flow may be generated. There is a concern that the hem of the clothes at the user's feet may turn over when the upward flow occurs.

  Therefore, one air blowing direction of the pair of air blowing means 7 is inclined to the upper floor side, for example, and the other air blowing direction of the pair of air blowing means 7 is inclined to the other floor, for example, the lower floor side. By doing in this way, it can prevent that the wind from the air blower 7 on either side shifts, and these winds collide and an upflow is generated.

  In addition, the sensor 9 and the ventilation control part 8 do not necessarily need to be provided. When the sensor 9 and the air blowing control unit 8 are not provided, the air blowing means 7 is always operated. In this case, by using the power for driving the escalator as the power source of the air blowing means 7, it is not necessary to provide a dedicated motor, and the power for driving the escalator can be used effectively.

  On the other hand, when the sensor 9 and the air blowing control unit 8 are provided, it is preferable to use a dedicated motor as a power source for the air blowing means 7 in order to change the operation state of the air blowing means 7 between blowing and stopping.

Embodiment 2. FIG.
FIG. 5 is a cross-sectional view schematically showing a configuration of a main part of an escalator safety device according to Embodiment 2 of the present invention.
In the second embodiment described here, in addition to the configuration of the first embodiment described above, the wind from the blowing means can be guided to the lower side of the step at the center of the step.

  That is, as shown in FIG. 5, an intake portion 2 a is formed at the center of each step 2. The intake portion 2 a is configured such that air can flow from the upper side to the lower side of the tread plate of the step 2. Specifically, for example, a plurality of through holes are provided in a mesh shape at the center of the tread. Naturally, the air intake portion 2a is configured so as not to hinder the user from getting on the step board of the step 2 in normal use.

  Below the intake part 2a of the step 2, negative pressure generating means 10 is installed. The negative pressure generating means 10 only needs to be provided corresponding to the installation location of the air blowing means 7. The negative pressure generating means 10 is for generating a negative pressure and guiding the wind sent from the blower means 7 downward from the intake portion 2a. Specifically, the negative pressure generating means 10 can be configured by, for example, a suction fan fixed to the main frame 1.

The negative pressure generating operation of the negative pressure generating unit 10 is performed in conjunction with the blowing operation of the blowing unit 7. Therefore, when the air blowing control unit 8 controls the air blowing operation of the air blowing unit 7, the air blowing control unit 8 may also control the operation of the negative pressure generating unit 10.
Other configurations are the same as those in the first embodiment, and detailed description thereof is omitted.

  The safety device for an escalator configured as described above can achieve the same effects as those of the first embodiment, and in addition, the wind sent from the blowing means 7 by the negative pressure generating means 10 can be sent to the center of the step 2. By guiding downward from the intake portion 2a, it is possible to more reliably prevent the upward flow from being generated by the wind from the blower means 7.

  DESCRIPTION OF SYMBOLS 1 Main frame, 2 Steps, 2a Air intake part, 3 Skirt guard, 4 Parapet, 5 Moving handrail, 6 Exit, 7 Air blow means, 8 Air blow control part, 9 Sensor, 10 Negative pressure production | generation means

Claims (4)

A plurality of steps that are connected endlessly in the escalator body that is running down, and circulate and move;
A skirt guard disposed from the entrance of the escalator to the exit along the left and right sides of the step;
In the skirt guard, adjacent steps are provided at a position corresponding to a transition start portion that starts a transition from a state with different heights to a state with the same height, and horizontally or horizontally toward the center of the steps. An escalator safety device comprising: air blowing means for sending wind more obliquely downward. The air blowing means is provided as a pair disposed opposite to each of the left and right skirt guards,
One of the pair of blowing means sends the wind in a direction inclined from the direction perpendicular to the side surface of the skirt guard to one side of both the upper floor side and the lower floor side,
2. The escalator safety device according to claim 1, wherein the other pair of the blowing means sends wind in a direction inclined from a direction perpendicular to a side surface of the skirt guard to the other side of the both. An air intake formed at the center of the step;
The negative pressure generating means provided below the intake part of the step and generating negative pressure to guide the wind sent from the air blowing means downward from the intake part. The escalator safety device according to 2. A sensor for detecting a user boarding the escalator;
The escalator safety device according to any one of claims 1 to 3, further comprising a control unit that controls the air blowing unit based on a detection result of the sensor.

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