JPH0859169A - Cleaning device for passenger conveyor - Google Patents

Abstract

PURPOSE: To provide a cleaning device for a passenger conveyor capable of obtaining the uniform and stable cleaning effect, and applicable to the existing passenger conveyor with simple constitution. CONSTITUTION: In a cleaning device for a passenger conveyor to clean and remove the dust on the surface of moving footsteps side a main frame 1 of the passenger conveyor, a cleaning tool 14 which assembles a number of elastic wire-shaped bodies below the center of reversion of the footsteps, and a cleaning tool position changing device 18 to change the interval of this cleaning tool relative to the surface of the footsteps are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a passenger conveyor cleaning device for cleaning a tread surface of a passenger conveyor such as an escalator or an electric road, and particularly for a passenger conveyor for cleaning a tread surface of a passenger in a main frame of the passenger conveyor. Regarding the cleaning device.

[0002]

2. Description of the Related Art Conventionally, as a means for cleaning a tread surface of a passenger conveyor such as an escalator or an electric road, there is, for example, one in which a cleaning brush is brought into contact with the tread surface of a tread, or a vacuum dust collector is brought closer to suck the tread. (Japanese Patent Laid-Open No. 224979/1983, Japanese Utility Model Laid-Open No. 5-14078).

[0003]

Although the above-mentioned conventional technique has some cleaning effect, it has a problem that uneven cleaning occurs on the tread surface of the tread.

An object of the present invention is to provide a cleaning device for passenger conveyors which can provide a uniform and stable cleaning effect.

Another object of the present invention is to provide a passenger conveyor cleaning device which has a simple structure and can be applied to an existing passenger conveyor.

[0006]

In order to achieve the above object, the present invention provides a passenger conveyor cleaning device for removing dust on the surface of a moving tread inside a main frame of the passenger conveyor. Below the center of the stepping plate inversion, a cleaning tool formed by assembling a large number of elastic linear bodies and a cleaning tool displacing device for changing the distance between the cleaning tool and the surface of the stepping plate are provided.

[0007]

According to the above construction, by disposing the cleaning tool below the center of the stepping plate inversion, it is possible to bring the cleaning tool into contact with the treading surface of the treading surface in the state where the inclination change of the treading surface is the smallest, and to perform the cleaning. Since the cleaning tool elastically deforms and follows the fluctuation of the tread, the entire tread of the tread can be cleaned almost uniformly.
Further, since the degree of contact of the cleaning tool with the surface of the tread can be changed by the cleaning tool displacing device, the tread surface of the tread can be cleaned for a long period of time.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 4, the escalator has a main frame 1 installed across a lower floor LF and an upper floor UF, and is endlessly connected to the main frame 1 by a step chain (not shown). A plurality of steps 2 are guided so as to be rotatable. The step chain is wound around a drive pulley 4 and a driven pulley 5 which are axially supported by an upper machine chamber 3A and a lower machine chamber 3B formed at both ends of the main frame 1. The rotation of the driving machine 7 is transmitted to the drive pulley 4 via the chain 6. The upper machine room 3A and the lower machine room 3B are closed by an upper hall floor 8A and a lower hall floor 8B, respectively.

On the other hand, balustrade panels 9 are erected on both sides of the main frame 1 in the longitudinal direction, and moving handrails 10 are provided around the balustrade panels 9.
Are configured to move.

An example of the construction of the cleaning device 11 installed in the bottom of the main frame 1 in the lower machine room 3B in the escalator having the above construction will be described in detail with reference to FIGS.

A cleaning tool 14 is swingably connected to one end of the plate-shaped or frame-shaped support 12 in the longitudinal direction via a pin 13. The cleaning tool 14 is composed of a base portion 15 connected to the pin 13 and a brush body 16 that is held by the base portion 15 and has a collection of elastic linear bodies that can be attached and detached. Further, one end of an operating cylinder 18 which is a so-called cleaning tool displacing device for displacing the angle of the cleaning tool 14 is connected to the other end side in the longitudinal direction of the support body 12 via a pin 17. The other end of the operating cylinder 18 is connected to the base 15 of the cleaning tool 14 via a pin 19.

The cleaning device 11 configured as described above is fixed in the dust container 20, and the dust container 20 is detachably fixed to the main frame 1. The dust container 20 is fixed to the main frame 1 by providing an engaging body 22 that engages with a positioning body 21 provided on the main frame 1 at the tip of the dust container 20.
The positioning body 21 is formed by fixing both legs of a U-shaped rod body to the main frame 1, and the engaging body 22 is two leaf springs.
It is formed so as to sandwich the bottom portion of the character-shaped rod body.

The fixed position of the dust container 20 to the main frame 1 is a portion where the brush body 16 is located almost directly below the center of reversal in the reversal portion of the step 2. Specifically, the inverted portion of the step 2 has an inner guide rail Ri and an outer guide rail R.
The brush body 1 is guided so as to be reversed by o and the brush body 1 just below the reversing center P of the inner guide rail Ri.
The dust container 20 is fixed to the main frame 1 so that 6 is located. In this way, the position of the brush body 16 is set just below the reversing center P of the inner guide rail Ri, and if it is brought into contact with the tread surface of the step 2 just above the reversing center P, the inclination of the tread surface is not changed, which is the most desirable. However, there is a problem that it interferes with getting on and off because it is a passenger getting on and off section.
If 6 is to be installed in the left lateral direction of the reversing center P, it is the position where the variation in the inclination of the tread surface of the step 2 being inverted is the largest, so the brush body 16 must be driven in accordance with the variation. Since there is a problem that it does not occur, it is located directly below the center of inversion P, which is the position where the variation in the inclination of the tread of the step 2 after the inversion is minimized.

A case in which the passenger conveyor cleaning device 11 having the above-described structure is used during the descent operation of the escalator will be described with reference to FIGS. The cleaning tool 14 of the cleaning device 11 is
In a normal state, as shown by a chain double-dashed line in FIG. 2, the step 2 is laid so as not to obstruct the movement of the step 2 (in the direction of the arrow). The lying cleaning tool 14 is raised by driving the operating cylinder 18 and brought into contact with the surface of the step plate of the step 2 passing therethrough. The cleaning tool 1 on the surface of the tread
By the contact of 4, the dust adhering to the surface is swept off, and the foreign matter lightly sandwiched between the cleats is scraped off and falls downward.

By the way, the position of the tread surface with which the cleaning tool 14 contacts constantly fluctuates, but since the brush body 16 of the cleaning tool 14 has elasticity, the elastic deformation deforms to absorb the fluctuation of the tread surface. Therefore, it is possible to carry out cleaning so as to always make contact.

On the other hand, the dust and foreign substances dropped downward by the cleaning are received by the dust container 20, so that they are not scattered in the lower machine chamber 3B. The dust and the like thus received can be discarded to the outside by periodically removing the dust container 20 from the main frame 1. In addition, when removing the dust container 20 from the main frame 1,
By pulling the dust container 20 in the direction of the arrow in FIG.
Since the engagement body 22 elastically engaged with the positioning body 21 is spread and released from the engagement with the positioning body 21, it can be easily removed. On the other hand, when the dust container 20 from which dust has been discarded is mounted on the main frame 1, the dust container 20 is inserted along a guide (not shown), and when the engaging body 22 abuts the positioning body 21, By pressing firmly, the engagement body 22 is expanded and sandwiches the positioning body 21, so that it is fixed. In the above embodiment, the cleaning tool 1 is driven by driving the operating cylinder 18 when it is deemed necessary.
Although 4 is brought into contact with the tread surface, the operating cylinder 18 may be intermittently driven to clean the tread surface at regular intervals. Cleaning by intermittent driving during this time is driven by the day when the escalator is started or before the operation is stopped, and by the weather and the presence of events on that day, and by the day of the week when driving,
It is desirable to create a drive program for the operating cylinder 18.

By the way, when the surface of the tread plate is cleaned during the descending operation of the escalator, as shown in FIG. 1, for example, a step may occur between the moving tread 2A and the surface of the adjacent tread 2B depending on the design, depending on the design. Since the end of the surface 2B may be farther from the brush than the surface, the cleaning tool 14 that has deviated from the end of the step surface of the step 2A does not come into contact with the start of the step surface of the next step 2B and the start of the step surface of the step 2B. There is a problem that contact may start from a position distant from, and cleaning near the starting end of the tread surface may not be sufficient. In order to solve this problem, when cleaning the surface of the tread during the escalator descending operation, the tread surface is operated at a speed slower than the normal operating speed, preferably at a speed less than half the normal operating speed. As described above, by operating at a low speed, the cleaning tool 14 that has deviated from the end of the step surface of the step 2A has its tip at the start of the step surface of the step 2B until the start of the step surface of the next step 2B approaches. Since the height is restored to a sufficient contact level, the tread surface can be cleaned from the starting end of the tread surface of the next step 2B.

Next, the case where the escalator is used during the ascending operation will be described with reference to FIG. The cleaning tool 14 of the cleaning device 11 is laid out so as not to obstruct the movement of the step 2 during normal operation, as indicated by the chain double-dashed line in FIG. The lying cleaning tool 14 is raised by driving the operating cylinder 18 so as to flutter in the moving direction of the step 2 (the direction of the wing arrow), and the cleaning of the tread surface is performed in the same manner as during the descent operation. To do.

As described above, the cleaning tool 14 is tilted so as to flutter in the moving direction of the step 2 so that the brush body 1
The damage of 6 can be eliminated and the life can be extended.

In the above embodiment, the installation position of the cleaning tool 14 is directly below the reversing center P of the step 2. However, it is not always necessary to be directly below the reversing center P, and the tread plate may be provided from directly below the reversing center P to the front and rear. Even if it is installed within the range of the length of one sheet, the same effect can be obtained. Further, although the lower part is taken as an example in the description, the same relationship can be maintained even if the lower part is placed below the rotation center of the upper drive gear, and therefore this device is not limited to being installed in the lower part.

5 to 7 show another embodiment according to the present invention, and the basic structure is the same as that of the embodiment shown in FIGS.

The cleaning tool 14 is composed of a base portion 15 connected to the pin 13 and a brush body 16 held by the base portion 15 and having elastic linear bodies gathered together.

On the other hand, the cleaning tool displacing device comprises a rotary driving machine 18R fixed to the support 12, and its rotary shaft is a screw shaft 23. The movable body 25 is screwed into the screw shaft 23. This movable body 25 is the support 1
It is guided by the brackets 24A and 24B fixed to 2 so as to be movable in parallel with the extending direction of the screw shaft 23. Further, one end side of a connecting rod 26 guided by a guide tool 27 fixed to the support body 12 is connected to the movable body 25. The connecting rod 26 includes a hollow rod 26A on the side connected to the movable body 25 and a rod 26B connected to the hollow rod 26A.
Has a hollow hole into which the screw shaft 23 can be inserted. The other end of the rod 26B is pin-connected to the base portion 15 of the cleaning tool 14 via a coil spring 28.

In addition, the base portion 15 of the cleaning tool 14 is constantly pressed by the torsion spring 29 wound around the pin 13 in a direction in which the cleaning tool 14 is separated from the surface of the tread. Further, a stopper 30 is provided so as to vertically stand the cleaning tool 14 during cleaning.

The cleaning device having the above construction is placed at a position where the step 2 is inverted and the surface of the tread faces downward, and when the escalator is in normal operation, the step 2 moves by inclining the cleaning tool 14 as shown in FIG. And do not buffer it. Then, at the time of cleaning the surface of the tread, the rotary driver 18R is rotated to move the movable body 2 located on the bracket 24B side.
5 is moved to the bracket 24A side by screwing in the screw shaft 23, as shown in FIG. As the movable body 25 moves, the tip of the screw shaft 23 is inserted into the hollow rod 26A, and the rod 2 is moved until the cleaning tool 14 hits the stopper 30.
6, Pull the coil spring 28 to stand. In this state, the surface of the tread is cleaned, but the coil spring 28 absorbs the fluctuation of the contact resistance between the brush body 16 and the surface of the tread.

After the cleaning, the rotary drive 18R is rotated to move the movable body 2 on the bracket 24A side.
As the screw shaft 23 is untwisted, the screw 5 moves to the bracket 24B side as shown in FIG. 6, and is inclined to a position where it does not interfere with the step 2 on which the cleaning tool 14 moves.

As shown in FIG. 5, the above cleaning device is suitable for cleaning when the escalator is being lowered (in the direction of the wing arrow). However, when the brush body 16 is applied in the ascending operation, the brush body 16 flutters in the direction opposite to the direction shown in FIG. 5 due to the contact resistance with the surface of the tread plate, but the inclination of the brush body 16 is restricted by the stopper 30. By changing the attachment angle of the stopper 30 so that the stopper 30 can be easily moved in the traveling direction of the step as shown in FIG. 3, the elastic force of the brush body 16 can be made more effective.

FIGS. 8 and 9 show still another embodiment, in which the cleaning tool 14 is driven by the operating cylinder 18 via the remote wire 31. It is suitable when the operating cylinder 18 cannot be installed close to each other. In this embodiment, the operating cylinder 18 is installed on the vertical member 1V of the main frame 1. The remote wire 31 is composed of a guide tube 32 and a wire 33 passing through the guide tube 32. One end of the wire 33 is connected to the driving body of the operating cylinder 18, and the other end is pin-connected to the cleaning tool 14. . Fixing tools 32A and 32B are provided at both ends of the guide tube 32, and these fixing tools 32A and 32B are provided.
B is fixed to brackets 34A and 34B fixed to a fixing member so that the guide tube 32 does not move due to the movement of the wire 33.

With such a configuration, although the function is the same as that of the above-described embodiment, the driving machine such as the working cylinder 18 can be installed at any position, and further, the driving machine such as the working cylinder 18 can be installed. Can be installed only when needed.

In the above embodiment, the brush body 1 is formed by arranging the elastic linear bodies as the cleaning tool 14 only in one direction.
Although 6 is used, as shown in FIG. 10, a rotating brush body 35 formed by radially implanting a linear body having elasticity in a cylindrical body 36 having a shaft 37 may be used. This rotating brush body 35 is not used by rotating it, but it is fixed when it comes into contact with the surface of the tread, and after being used to some extent, it is rotated by an appropriate angle to use a new contact portion with the surface of the tread. As a result, the replacement period of the rotary brush body 35 can be extended.

Next, the elastic linear member forming the brush members 16 and 35 will be described. The elastic linear body is made of an elastic synthetic resin fiber such as nylon, and may be a straight fiber having no habit. However, as shown in FIG. 12, on the surface of the footboard of the escalator, a plurality of cleats 2C are provided side by side along the step depth direction. Then, the brush body 16 formed of the linear fibers,
When 35 is brought into contact with the surface of the tread, the top of the cleat 2C perpendicular to the brush bodies 16 and 35 is in good contact, but the cleat 2
The side wall portion 2S of C has a problem that contact with the brush bodies 16 and 35 is reduced and dust is not sufficiently removed. Therefore, as shown in FIGS. 11 and 12, by forming the elastic linear body 39 that is alternately and continuously bent in one direction, the linear body 39 is also bent on the side wall portion 2S of the cleat 2C. The parts come into constant contact with each other to remove the dust adhering to the side wall part 2S.

Although the escalator has been described as the passenger conveyor in the above embodiment, the present invention can also be applied to cleaning the surface of a tread of an electric road that does not cause a step on the adjacent tread.

[0033]

As described above, according to the present invention, it is possible to obtain a passenger conveyor cleaning device which has a simple structure and can be applied to an existing passenger conveyor.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing an embodiment of a cleaning device for a passenger conveyor according to the present invention installed in a lower machine room of an escalator.

FIG. 2 is an enlarged view of the passenger conveyor cleaning device during the descent operation shown in FIG.

FIG. 3 is an enlarged view of the passenger conveyor cleaning device during the ascending operation shown in FIG. 1.

FIG. 4 is a schematic side view showing an escalator in which a passenger conveyor cleaning device according to the present invention is installed.

FIG. 5 is a vertical cross-sectional side view showing another embodiment of the passenger conveyor cleaning device according to the present invention installed in the lower machine room of the escalator.

6 is a side view showing a non-operating state of the passenger conveyor cleaning device of FIG. 5. FIG.

FIG. 7 is an enlarged side view showing the cleaning tool of FIGS.

FIG. 8 is a vertical sectional side view showing still another embodiment of the cleaning device for a passenger conveyor according to the present invention installed in the lower machine room of the escalator.

9 is an enlarged cross-sectional view showing the remote wire used in FIG.

FIG. 10 is a side view showing another brush body used in the present invention.

FIG. 11 is an enlarged perspective view showing an example of an elastic linear body used for the brush body of the present invention.

12 is an enlarged view showing a cleaning state between tread crate with a brush body using the elastic linear body of FIG.

[Explanation of symbols]

1 ... Main frame, 2 ... Steps, 11 ... Cleaning device, 12 ... Support body,
14, 35 ... Cleaning tool, 16 ... Brush body, 18 ... Operating cylinder, 18R ... Rotation drive machine, 20 ... Dust storage body, 21 ...
Positioning body, 22 ... Engaging body, 31 ... Remote wire, 39
... elastic filaments.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Makoto Ueda 2 832 Horiguchi, Katsuta City, Ibaraki Hitachi Elevator Engineering Co., Ltd. (72) Inventor Kiminori Iseta 2 832 Horiguchi, Katsuta City, Ibaraki Hitachi Elevator Engineering Co., Ltd. (72) Inventor Tadashi Saito 1070, Mao, Katsuta-shi, Ibaraki Hitachi Ltd. Mito Plant

Claims (10)

[Claims] 1. A passenger conveyor cleaning device for removing dust on a surface of a moving tread inside a main frame of the passenger conveyor, wherein a plurality of elastic linear members are provided below the center of the tread inversion. A cleaning device for a passenger conveyor, comprising: a cleaning tool formed by assembling the cleaning tools and a cleaning tool displacing device that changes a distance between the cleaning tool and the tread surface. 2. A passenger conveyor cleaning device for removing dust on the surface of a moving tread inside a main frame of the passenger conveyor, wherein elasticity is provided at a position where the surface of the tread is turned upside down. A cleaning device for a passenger conveyor, comprising: a cleaning tool formed by assembling a large number of linear bodies having the cleaning tool; and a cleaning tool displacing device for changing a distance between the cleaning tool and the tread surface. 3. The passenger conveyor cleaning device according to claim 1, wherein the linear members are alternately and continuously bent. 4. The cleaning tool and the cleaning tool displacing device are supported by a common support, and the support is detachably fixed to the main frame. Two
Cleaning device for a passenger conveyor as described. 5. The cleaning tool and the cleaning tool displacement device are supported by a dust container, and the dust container is detachably fixed to the main frame. The cleaning device for a passenger conveyor according to 1 or 2. 6. The cleaning device for a passenger conveyor according to claim 1, wherein the cleaning tool displacing device and the cleaning tool are connected via a buffer. 7. The cleaning tool displacing device is installed at a position distant from the cleaning tool, and both are connected via a remote control. Cleaning device for passenger conveyors. 8. A passenger conveyor cleaning device for removing dust on a surface of a moving tread inside a main frame of the passenger conveyor, wherein the base is placed at a position where the tread surface is inverted and faces downward. A brush axially supported by the support, a shock absorber whose one end is rotatably connected to the brush, and the other end of the shock absorber are connected to regulate the swing angle of the brush axially supported by the support. A cleaning device for a passenger conveyor, comprising a brush displacement device and a dust container detachably fixed to the main frame. 9. The passenger conveyor cleaning device according to claim 8, wherein the dust container includes means for engaging with an engaging portion provided at an installation position of the main frame. 10. At the position where the surface of the tread inside the main frame of the passenger conveyor is turned upside down and facing downward, when the brush is brought into contact with the surface of the tread to perform cleaning so that the following step is far from the brush. When there is a large step, the method for cleaning the footboard of the passenger conveyor is characterized in that the operation speed is set to be slower than the normal operation speed.